阅读说明：本技术 脚刹机构及承载底座 (Foot brake mechanism and bearing base ) 是由 屈萌 翟明春 焦伟 于 2021-09-26 设计创作，主要内容包括：本发明涉及一种脚刹机构及承载底座。该脚刹机构包括：底板；脚踏板,活动安装于所述底板；传动组件,可运动设置于所述底板,并传动连接所述脚踏板与所述承载底座的脚轮,所述脚踏板能够带动所述传动组件运动以锁定或解锁所述脚轮；以及锁定组件,连接所述传动组件与所述底板,用于锁定或解锁所述传动组件,使所述传动组件在锁定位置和解锁位置的定位,以及锁定位置与解锁位置之间的相互切换。通过一个脚踏板与传动组件、锁定组件的配合即可实现脚轮的锁定或解锁,减少脚刹机构的占用空间,而且,操作方便,便于用户使用。(The invention relates to a foot brake mechanism and a bearing base. This service brake mechanism includes: a base plate; the pedal is movably arranged on the bottom plate; the transmission assembly is movably arranged on the bottom plate and is used for driving and connecting the foot pedal and the caster of the bearing base, and the foot pedal can drive the transmission assembly to move so as to lock or unlock the caster; and the locking assembly is connected with the transmission assembly and the bottom plate and used for locking or unlocking the transmission assembly, so that the transmission assembly is positioned at a locking position and an unlocking position, and the locking position and the unlocking position are mutually switched. The locking or unlocking of the trundle can be realized through the matching of the pedal plate, the transmission assembly and the locking assembly, the occupied space of the foot brake mechanism is reduced, and the foot brake mechanism is convenient to operate and convenient for a user to use.)

1. A service brake mechanism, characterized in that the service brake mechanism (100) comprises:

a base plate (210);

a pedal (110) movably connected to the base plate (210);

the transmission assembly (120) is in transmission connection with the pedal (110) and a caster (300), and the pedal (110) can drive the transmission assembly (120) to move so as to lock or unlock the caster (300); and

a locking assembly (130) connecting the base plate (210) and the transmission assembly (120) for locking or unlocking the transmission assembly (120).

2. The footbrake mechanism of claim 1, characterized in that the footbrake mechanism (100) further comprises a guide assembly (140), the guide assembly (140) being disposed in the base plate (210) and slidably connecting the transmission assembly (120) with the base plate (210).

3. The footbrake mechanism of claim 2, characterized in that the guide assembly (140) comprises a guide (141) and a slider (142), the guide (141) is arranged on the bottom plate (210) and is parallel to the motion track of the pedal plate (110), the slider (142) is slidably mounted on the guide (141), and the slider (142) is further connected with the pedal plate (110).

4. The footbrake mechanism according to any of claims 1-3, characterized in that the locking assembly (130) comprises a locking set (132) and a limiting set, the locking set (132) is swingably arranged on the base plate (210), the limiting set is arranged on the transmission assembly (120), and the locking set (132) can slide into or out of the limiting set through the transmission assembly (120) when the pedal (110) moves downwards.

5. The footbrake mechanism of claim 4, characterized in that the limit group comprises a limit block (131), the transmission assembly (120) has a mounting groove (12111), the limit block (131) is disposed in the mounting groove (12111), the limit block (131) has a limit groove (1311), and the end of the locking group can move in or out of the limit groove (1311) along the mounting groove (12111).

6. The footbrake mechanism according to claim 5, characterized in that the mounting groove (12111) is provided with a guiding section (121111), after the limiting block (131) is mounted in the mounting groove (12111), the limiting block (131) and the inner wall of the mounting groove (12111) are enclosed into a first groove section (121112) and a second groove section (121113), one end of the first groove section (121112) and one end of the second groove section (121113) are communicated with the same end of the guiding section (121111), and the other end of the first groove section (121112) and the other end of the second groove section (121113) are respectively communicated with two ends of the limiting groove (1311);

the end of the locking group (132) can be guided along the guide section (121111) and the first groove section (121112) into the retaining groove (1311) and can also be slid out of the retaining groove (1311) and guided through the second groove section (121113) into the guide section (121111).

7. The footbrake mechanism of claim 6, characterized in that the locking group (132) comprises a latch (1321), one end of the latch (1321) is rotatably mounted on the bottom plate (210), and the other end of the latch (1321) is slidably connected in the mounting groove (12111) and the limiting groove (1311).

8. The footbrake mechanism of claim 7, characterized in that the locking assembly (132) further comprises an elastic member (1322), wherein the elastic member (1322) connects the suspension needle (1321) and the bottom plate (210) for realizing the automatic rotation of the suspension needle (1321).

9. The footbrake mechanism of claim 1, wherein the locking assembly (130) comprises a self-locking gas spring (133), one end of the self-locking gas spring (133) being connected to the transmission assembly (120), the other end of the self-locking gas spring (133) being connected to the bottom plate (210).

10. A load-bearing base, characterized by comprising a plurality of casters (300) and at least one footbrake mechanism (100) according to any one of claims 1 to 9;

the foot brake mechanism is characterized in that the caster (300) can be rotatably arranged at the bottom of the bottom plate (210) of the foot brake mechanism (100), the foot brake mechanism (100) is arranged on the bottom plate (210) and can be movably connected with the caster (300) for locking or unlocking the caster (300).

Technical Field

The invention relates to the technical field of medical equipment, in particular to a foot brake mechanism and a bearing base.

Background

At present, a base is installed at the bottom of medical equipment, and when the medical equipment is moved, the base is moved to drive the movable medical equipment to move to a required position. After the medical equipment moves to the required position, the base is locked to fix the medical equipment, so that the medical equipment is prevented from moving, and the safety of the operation is ensured. The existing brake when the base is locked adopts a double-pedal scheme, namely a scheme that one pedal is locked and the other pedal is released, the scheme occupies a lot of installation space, and the use of the double pedals is inconvenient, so that the use of a user is influenced.

Disclosure of Invention

Therefore, it is necessary to provide a service brake mechanism and a bearing base which can reduce the occupied space and facilitate the operation, aiming at the problems of increased space size and inconvenient use caused by unlocking and locking by double pedals at present.

A service brake mechanism, the service brake mechanism includes:

a base plate;

the pedal is movably connected to the bottom plate;

the transmission assembly is in transmission connection with the foot pedal and the caster, and the foot pedal can drive the transmission assembly to move so as to lock or unlock the caster; and

and the locking assembly is connected with the bottom plate and the transmission assembly and used for locking or unlocking the transmission assembly.

In one embodiment, the service brake mechanism further comprises a guide assembly, wherein the guide assembly is arranged in the bottom plate and is connected with the transmission assembly and the bottom plate in a sliding manner.

In one embodiment, the guide assembly comprises a guide and a sliding member, the guide is arranged on the bottom plate and is parallel to the motion track of the pedal, the sliding member is slidably mounted on the guide, and the sliding member is further connected with the pedal.

In one embodiment, the locking assembly comprises a locking group and a limiting group, the locking group is arranged on the bottom plate in a swinging mode, the limiting group is arranged on the transmission assembly, and the locking group can slide into or slide out of the limiting group through the transmission assembly when the pedal moves downwards.

In one embodiment, the limiting group comprises a limiting block, the transmission assembly is provided with a mounting groove, the limiting block is arranged in the mounting groove and provided with a limiting groove, and the end part of the locking group can move in or out of the limiting groove along the mounting groove.

In one embodiment, the mounting groove is provided with a guide section, the limiting block is mounted on the mounting groove, the limiting block and the inner wall of the mounting groove are enclosed into a first groove section and a second groove section, one end of the first groove section and one end of the second groove section are communicated with the same end of the guide section, and the other end of the first groove section and the other end of the second groove section are respectively communicated with two ends of the limiting groove;

the end part of the locking group can enter the limiting groove along the guide section and the first groove section, and can also slide out of the limiting groove and enter the guide section through the second groove section.

In one embodiment, the locking group comprises a hanging needle, one end of the hanging needle is rotatably installed on the bottom plate, and the other end of the hanging needle can be slidably connected in the installation groove and the limiting groove.

In one embodiment, the locking group further comprises an elastic member, and the elastic member is connected with the hanging needle and the bottom plate and used for realizing automatic rotary motion of the hanging needle.

In one embodiment, the locking assembly comprises a self-locking gas spring, one end of the self-locking gas spring is connected with the transmission assembly, and the other end of the self-locking gas spring is connected with the bottom plate.

A load bearing base comprising a plurality of casters and at least one service brake mechanism as described in any one of the embodiments;

the truckle is rotatable set up in the bottom of the bottom plate of service brake mechanism, service brake mechanism set up in the bottom plate to the movable connection the truckle is used for locking or unblock the truckle.

After the technical scheme is adopted, the invention at least has the following technical effects:

according to the foot brake mechanism and the bearing base, when the foot brake mechanism is locked, the pedal plate is trampled, the pedal plate can drive the transmission assembly to move, so that the foot wheel can be locked when the transmission assembly moves, meanwhile, when the pedal plate descends, the pedal plate drives the locking assembly to move through the transmission assembly, so that the locking assembly locks the position of the transmission assembly, the phenomenon that the transmission assembly drives the foot wheel to move when the foot brake mechanism is locked is avoided, and the bearing base is ensured to be locked reliably; during the unblock, trample the running-board, the running-board can drive locking Assembly unblock transmission assembly through transmission assembly, moreover, can also realize the unblock of truckle during transmission assembly motion for bear the base and can remove. This service brake mechanism passes through drive assembly locking or unblock truckle, and drive the motion of locking subassembly through drive assembly, with locking or unblock drive assembly, make the running-board locate at latched position and unblock position and switch over each other between latched position and unblock position, effectual solution is realized the unblock through two pedals at present and is brought the space size increase and awkward problem with the locking, make a running-board and drive assembly, the locking or the unblock of truckle can be realized to the cooperation of locking subassembly, reduce the occupation space of service brake mechanism, moreover, high durability and convenient operation, convenient to use user uses.

Drawings

Fig. 1 is a perspective view of a supporting base according to an embodiment of the invention;

FIG. 2 is a schematic view of the load base of FIG. 1 with the outer shell removed;

FIG. 3 is an enlarged view of the load base shown in FIG. 2 at the service brake mechanism;

FIG. 4 is a perspective view of one embodiment of the service brake mechanism shown in FIG. 3;

FIG. 5 is a front view of the service brake mechanism shown in FIG. 4;

FIG. 6 is a rear elevational view of the service brake mechanism illustrated in FIG. 5;

FIG. 7 is an enlarged partial view of the drive rack of the service brake mechanism illustrated in FIG. 6;

FIG. 8 is a perspective view of another embodiment of the service brake mechanism shown in FIG. 3;

fig. 9 is a partial enlarged view of the service brake mechanism shown in fig. 8.

Wherein: 100. a foot brake mechanism; 110. a foot pedal; 120. a transmission assembly; 121. a first transmission set; 1211. a drive rack; 12111. mounting grooves; 121111, a guide section; 121112, a first slot segment; 121113, a second groove section; 1212. a first gear; 1213. a first mounting seat; 122. a second transmission set; 1221. a second gear; 1222. a third gear; 1223. a second mounting seat; 123. rotating the rod; 130. a locking assembly; 131. a limiting block; 1311. a limiting groove; 132. a locking group; 1321. hanging a needle; 1322. an elastic member; 1323. a third mounting seat; 133. a self-locking gas spring; 140. a guide assembly; 141. a guide member; 142. a slider; 200. a load bearing base; 210. a base plate; 211. an installation space; 220. a housing; 300. and a caster.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1-6, the present invention provides a service brake mechanism 100. The service brake mechanism 100 is applied to a bearing base 200 of a mobile medical device, and is used for realizing the movement and locking of the mobile medical device. When the mobile medical equipment is needed, the mobile medical equipment moves to a required position along the ground through the caster 300 at the bottom, and then the foot brake mechanism 100 is stepped down to lock the caster 300, so that the mobile medical equipment is fixed at the required position. After the ambulatory medical device is used, the foot brake mechanism 100 is depressed to unlock the caster 300 so that the ambulatory medical device can move along the ground. It should be noted that the service brake mechanism 100 of the present invention is described by taking the carrying base 200 applied to the mobile medical device as an example. In other embodiments of the present invention, the service brake mechanism 100 may be applied to other devices requiring movement and locking.

The bottom of the existing medical equipment is unlocked by using double pedals, namely one pedal is an unlocking pedal, the other pedal is a locking pedal, the locking pedal is treaded during locking, and the unlocking pedal is treaded during unlocking. The structure of the double pedals occupies more installation space, and the operation mode of the double pedals is not convenient for users to use. Therefore, the invention provides a novel service brake mechanism 100, and the service brake mechanism 100 occupies a small space and is convenient for a user to use. The specific structure of the service brake mechanism 100 is described in detail below.

Referring to fig. 3-6, in one embodiment, the service brake mechanism 100 includes a foot pedal 110, a transmission assembly 120, and a locking assembly 130. The transmission assembly 120 is movably disposed on the bottom plate 210 of the carrying base 200 and is used for driving the foot pedal 110 and the caster 300 of the carrying base 200, and the foot pedal 110 can drive the transmission assembly 120 to move to lock or unlock the caster 300. The locking assembly 130 connects the transmission assembly 120 and the base plate 210 for locking or unlocking the transmission assembly 120, positioning the foot pedal 110 between the locked position and the unlocked position, and switching between the locked position and the unlocked position.

The foot brake mechanism 100 is movably installed on the bottom plate 210 of the bearing base 200, and the foot brake mechanism 100 is connected with the caster 300, and when the foot brake mechanism 100 moves, the foot brake mechanism 100 can drive the internal structure of the caster 300 to move so as to lock or unlock the caster 300. Moreover, after the foot brake mechanism 100 is locked, the foot brake mechanism 100 can also realize self locking, so as to ensure that the caster 300 is reliably locked.

Specifically, the ambulatory medical device is mobile, and the foot brake mechanism 100 unlocks the caster 300, and the ambulatory medical device can move along the ground via the caster 300, so that the ambulatory medical device can be moved to a desired position. After the mobile medical equipment moves to a required position, the foot brake mechanism 100 is trampled to unlock the locking caster 300 and lock the locking caster 300, so that the caster 300 is reliably locked, the phenomenon that the mobile medical equipment moves in the process of performing operation due to the movement of the caster 300 is avoided, and the use safety of the mobile medical equipment is ensured. After the operation is completed, the foot brake mechanism 100 is trampled to unlock the caster 300, and the mobile medical equipment can move along the ground through the caster 300, so that the mobile medical equipment can be moved away. It should be noted that the caster 300 is an existing structure, and the internal structure thereof can lock and unlock the caster 300 when rotating, and the specific structure thereof is not described herein.

The footbrake mechanism 100 includes a foot pedal 110 and a transmission assembly 120. The foot pedal 110 is an operating member of the service brake mechanism 100. The foot pedal 110 is stepped on to perform the locking and unlocking operations of the foot brake mechanism 100. Specifically, the bottom plate 210 of the carrying base 200 has a mounting space 211 therein, the footbrake mechanism 100 is located in the mounting space 211, the footboard 110 is located on top of the mounting space 211, and the footboard 110 is movably disposed in the mounting space 211.

The bottom of the foot pedal 110 is connected to the input part of the transmission assembly 120, the output part of the transmission assembly 120 is connected to the caster 300, and the transmission assembly 120 is movably disposed in the installation space 211 of the base plate 210. Thus, when the pedal 110 is stepped on, the pedal 110 can drive the transmission assembly 120 to move, and then the transmission assembly 120 can drive the internal structure of the caster 300 to move, and the locking and unlocking control of the caster 300 is realized through the movement of the transmission assembly 120. Specifically, when the foot pedal 110 is stepped on for the first time, the foot pedal 110 drives the transmission assembly 120 to move so as to lock the caster 300; when the foot pedal 110 is stepped on for the second time, the foot pedal 110 can drive the transmission assembly 120 to move so as to unlock the caster 300.

Furthermore, if the transmission assembly 120 is not locked when the caster 300 is locked, the position of the transmission assembly 120 may shift, and therefore, the service brake mechanism 100 of the present invention further includes a locking assembly 130, one end of the locking assembly 130 is connected to the transmission assembly 120, and the other end of the locking assembly 130 is connected to the base plate 210. The locking assembly 130 is capable of locking or unlocking the position of the transmission assembly 120, positioning the foot pedal 110 in the locked position and the unlocked position, and switching between the locked position and the unlocked position. After the locking assembly 130 locks the transmission assembly 120, the transmission assembly 120 cannot move, and the pedal 110 is in the locking position, so that the caster 300 can be reliably locked. After the locking assembly 130 unlocks the transmission assembly 120, the transmission assembly 120 can control the caster 300 to be unlocked, and the foot pedal 110 is in the unlocked position. Also, when the pedal plate 110 moves the transmission assembly 120, the transmission assembly 120 can be locked or unlocked by the locking assembly 130, so that the pedal plate 110 is switched between the locked position and the unlocked position.

Specifically, when the caster 300 needs to be locked, the pedal 110 is stepped on, the pedal 110 can press down the transmission assembly 120 to drive the transmission assembly 120 to move, and then the caster 300 can be locked when the transmission assembly 120 moves; meanwhile, the transmission assembly 120 can move the locking assembly 130, so that the locking assembly 130 locks the transmission assembly 120. Thus, after the pedal 110 is released, the locking assembly 130 can reliably lock the transmission assembly 120, thereby preventing the transmission assembly 120 from shifting, and ensuring the caster 300 to be reliably locked. When the caster 300 is unlocked, the pedal 110 is stepped on to enable the transmission assembly 120 to drive the locking assembly 130 to move, the transmission assembly 120 is unlocked through the locking assembly 130, and after the pedal 110 is released, the transmission assembly 120 can drive the pedal 110 to reset and unlock the caster 300.

The foot brake mechanism 100 of the above embodiment locks or unlocks the caster 300 through the transmission assembly 120, and drives the locking assembly 130 to move through the transmission assembly 120, so as to lock or unlock the transmission assembly 120, which effectively solves the problem that the increase of the space size and the inconvenience in use are brought by the unlocking and locking realized through double pedals at present, so that the locking or unlocking of the caster 300 can be realized through the cooperation of one pedal plate 110, the transmission assembly 120 and the locking assembly 130, the occupied space of the foot brake mechanism 100 is reduced, and the foot brake mechanism is convenient to operate and convenient for a user to use.

Referring to fig. 3 to 6, in an embodiment, the transmission assembly 120 includes a first transmission set 121, a second transmission set 122, and a rotation rod 123, the rotation rod 123 is further connected to at least one caster 300, an input portion of the first transmission set 121 is connected to the pedal 110, an output portion of the first transmission set 121 is connected to an input portion of the second transmission set 122, and an output portion of the second transmission set 122 is connected to the rotation rod 123 to lock or unlock the caster 300.

The first transmission set 121 is an input element of the motion of the transmission assembly 120, the rotating rod 123 is an output element of the motion of the transmission assembly 120, and the second transmission set 122 is in transmission connection with the first transmission set 121 and the rotating rod 123, and is used for transmitting the motion of the first transmission set 121 to the rotating rod 123. The first transmission set 121 is connected/abutted with the pedal 110, and the rotating rod 123 is connected with at least one caster 300. Like this, when stepping on running-board 110, running-board 110 can drive first transmission group 121 motion, and then first transmission group 121 can drive second transmission group 122 and rotate, and when second transmission group 122 rotated, second transmission group 122 can drive rotary rod 123 and rotate, can drive truckle 300 motion when rotary rod 123 rotated, realizes the locking of truckle 300. Alternatively, the rotating rod 123 is connected with two casters 300, and the two casters 300 are located at both ends of the rotating rod 123. Of course, in other embodiments of the present invention, the rotating rod 123 may be connected with one caster 300 or even more casters 300.

Meanwhile, the locking assembly 130 connects the first transmission set 121 and the bottom plate 210, and after the pedal 110 is released, the locking assembly 130 can lock the position of the first transmission set 121, so as to limit the resetting of the first transmission set 121, and prevent the position of the first transmission set 121 and the position of the second transmission set 122 from shifting to affect the reliable locking of the caster 300. Moreover, when the pedal 110 is stepped on again, the locking assembly 130 can be unlocked, and then the pedal 110 is released, the first transmission set 121 can drive the second transmission set 122 and the rotating rod 123 to reset, and the rotating rod 123 can drive the caster 300 to move when resetting and rotating, so that the unlocking operation of the caster 300 is realized.

That is to say, after the foot pedal 110 is stepped on for the first time, the foot pedal 110 can lock the caster 300 through the first transmission set 121, the second transmission set 122 and the rotating rod 123, and simultaneously can drive the locking assembly 130 to move through the first transmission set 121 to lock the first transmission set 121, so that after the foot pedal 110 is loosened, the position of the transmission assembly 120 does not move, the locking reliability of the caster 300 is ensured, and the use safety of the mobile medical device is further ensured. The pedal 110 is stepped on for the second time to unlock the locking assembly 130, and then the pedal 110 is released, the first transmission set 121 and the second transmission set 122 can drive the rotating rod 123 to reset, and then the rotating rod 123 unlocks the caster 300. The resetting of the first transmission set 121 is mentioned later.

It should be noted that the form of the first transmission set 121 and the second transmission set 122 is not limited in principle, as long as the movement of the pedal 110 can be converted into the rotation movement record of the rotation rod 123. Alternatively, the first transmission set 121 is a rack and pinion structure or other components capable of converting vertical motion into rotational motion. Optionally, the second transmission group 122 is a gear transmission, a belt transmission or a chain transmission. In the present invention, the first transmission set 121 is taken as an example of a rack-and-pinion structure for explanation, the second transmission set 122 is taken as an example of a gear transmission structure for explanation, and when the second transmission set 122 is a belt transmission structure or a chain transmission structure, the structural principle thereof is substantially the same as that of the gear transmission structure, and thus the description thereof is omitted.

Referring to fig. 3 to 6, in an embodiment, the first transmission set 121 includes a transmission rack 1211 and a first gear 1212, the transmission rack 1211 is disposed in the bottom plate 210 along the vertical direction, the pedal 110 is mounted on the top of the transmission rack 1211, the first gear 1212 is engaged with the transmission rack 1211, and the first gear 1212 is in transmission connection with the second transmission set 122. The driving rack 1211 is vertically disposed in the installation space 211 of the bottom plate 210, one end of the driving rack 1211 can be connected/abutted with the pedal 110, the first gear 1212 is rotatably installed on the bottom plate 210, and the driving rack 1211 is engaged with the first gear 1212, and the first gear 1212 is further in driving connection with the second driving group 122.

Therefore, when the pedal 110 is stepped on, the pedal 110 can drive the transmission rack 1211 to move downwards, and when the transmission rack 1211 moves downwards, the transmission rack 1211 can drive the first gear 1212 engaged therewith to rotate, and further the first gear 1212 can drive the second transmission set 122 to rotate, so that the second transmission set 122 drives the rotating rod 123 to rotate to lock the caster 300. Furthermore, one end of the locking assembly 130 is connected to the transmission rack 1211, and when the pedal 110 is stepped to drive the transmission rack 1211 to move downwards, the locking assembly 130 can lock the transmission relation of the transmission rack 1211 to limit the transmission rack 1211 to move upwards.

When the pedal 110 is stepped on again, the pedal 110 drives the transmission rack 1211 to move downwards, and at this time, the transmission rack 1211 can unlock the locking assembly 130 when moving downwards, and the locking assembly 130 does not restrict the upward movement of the transmission rack 1211 any more. Subsequently, the foot pedal 110 is released, and the transmission rack 1211 can move upward to drive the first gear 1212, the second transmission set 122, the rotation rod 123 and the foot pedal 110 to reset, so as to unlock the caster 300.

Optionally, the first transmission set 121 further includes a first mounting seat 1213, the first mounting seat 1213 is disposed on the bottom plate 210, and the first mounting seat 1213 is configured to rotatably mount the first gear 1212, so as to realize rotational support of the first gear 1212, ensure that the position of the first gear 1212 is accurate, avoid the position of the first gear 1212 from shifting, and further ensure that the first gear 1212 can accurately transmit motion. Optionally, the first transmission set 121 further comprises a rotating shaft (not shown) rotatably mounted on the first mounting seat 1213, and the first gear 1212 is mounted on the rotating shaft. The first gear 1212 is rotatably mounted to the first mounting seat 1213 via a rotating shaft, so that the first gear 1212 can be rotatably mounted.

Referring to fig. 3 to 6, in an embodiment, the second transmission set 122 includes a second gear 1221 and a third gear 1222, the second gear 1221 is coaxially disposed with the first gear 1212, the third gear 1222 is disposed on the rotating rod 123, and the second gear 1221 is in meshing connection with the third gear 1222. First gear 1212 and the coaxial setting of second gear 1221 can drive second gear 1221 synchronous rotation when first gear 1212 rotates, and second gear 1221 meshes third gear 1222, can drive third gear 1222 when second gear 1221 rotates and rotate. The third gear 1222 can drive the rotating rod 123 to rotate when rotating, and then the rotating rod 123 can drive the caster 300 to lock or unlock when rotating.

Optionally, the diameter of the second gear 1221 is smaller than the diameter of the first gear 1212. Optionally, the second gear 1221 is disposed on the rotation shaft and spaced apart from the first gear 1212.

In one embodiment, the third gear 1222 is a half gear. That is, the third gear 1222 is a half-segment structure. Thus, the third gear 1222 is located above the bottom plate 210, so that the third gear 1222 is prevented from interfering with the bottom plate 210 when rotating, and the third gear 1222 is ensured to rotate smoothly. Of course, in other embodiments of the present invention, the bottom plate 210 has an avoiding space, and the third gear 1222 is a complete gear and is partially located in the avoiding space. The lower half portion of the third gear 1222 is located in the space to avoid interference with the base plate 210 when the third gear 1222 rotates.

Optionally, the second transmission group 122 further comprises a second mounting seat 1223, the second mounting seat 1223 is configured to rotatably mount the base plate 210, the third gear 1222 is configured to rotatably mount to the second mounting seat 1223, and the third gear 1222 is supported by the second mounting seat 1223. Optionally, the rotating rod 123 is rotatably mounted on the second mounting seat 1223, and the rotating rod 123 is supported by the second mounting seat 1223, so that the rotating rod 123 is prevented from being suspended, and the rotating rod 123 is ensured to rotate stably.

Optionally, the foot brake mechanism 100 further includes a reset member, one end of which is connected to the base plate 210, and the other end of which is connected to the transmission rack 1211 or the foot pedal 110. When the pedal plate 110 is stepped on, the pedal force compresses the pedal plate 110 and the transmission rack 1211 downward against the elastic force of the return member. When the pedal 110 is released, the elastic force of the reset member can drive the transmission rack 1211 and the pedal 110 to reset. Optionally, the return member is a spring.

When the pedal 110 is stepped on, the pedal 110 presses down the reset member to drive the transmission rack 1211 to move downwards, so that the transmission rack 1211 drives the meshed first gear 1212 to rotate, the first gear 1212 drives the second gear 1221 coaxial with the first gear to rotate, the second gear 1221 drives the meshed third gear 1222 to rotate, and the third gear 1222 can drive the rotating rod 123 to rotate, so as to lock the caster 300. During the downward movement of the driving rack 1211, the driving rack 1211 can move the locking assembly 130, so that the locking assembly 130 locks the driving rack 1211 and prevents the driving rack 1211 from moving upward. Upon release of the foot pedal 110, the locking assembly 130 limits the upward movement of the drive rack 1211.

When the pedal 110 is stepped on again, the pedal 110 presses the reset member to further drive the transmission rack 1211 to move downwards, in the process, the transmission rack 1211 can drive the locking assembly 130 to move so as to unlock the locking assembly 130, and the locking assembly 130 does not restrict the transmission rack 1211 to move upwards any more. Subsequently, the pedal 110 is released, and the elastic force of the returning member returns the transmission rack 1211 and the pedal 110. When the driving rack 1211 is reset, the driving rack 1211 can drive the first gear 1212 to rotate reversely, and then the first gear 1212, the second gear 1221 and the third gear 1222 drive the rotating rod 123 to rotate, so as to unlock the caster 300.

Optionally, the pedal 110 is fixedly connected to the transmission rack 1211. The pedal 110 moves up and down in synchronization with the driving rack 1211. Alternatively, the pedal plate 110 abuts the transmission rack 1211, and one end of the pedal plate 110 is rotatably connected to the base plate 210.

Referring to fig. 3 to 6, in an embodiment, the foot brake mechanism 100 further includes a guide assembly 140, and the guide assembly 140 is disposed in the bottom plate 210 and slidably connects the transmission rack 1211 of the transmission assembly 120 with the bottom plate 210 for guiding the movement of the foot pedal 110. The guide assembly 140 is used for guiding the lifting motion of the driving rack 1211, so as to ensure that the driving rack 1211 can move according to a preset track, prevent the driving rack 1211 from being separated from the first gear 1212, and ensure accurate driving motion.

In one embodiment, the guiding assembly 140 includes a guiding member 141 and a sliding member 142, the guiding member 141 is disposed on the bottom plate 210 and is parallel to a moving track of the driving rack 1211 in the driving assembly 120, the sliding member 142 is slidably mounted on the guiding member 141, and the sliding member 142 is further connected to the driving rack 1211 of the driving assembly 120. The guide member 141 is disposed in the installation space 211 of the base plate 210 in a vertical direction and is disposed to correspond to the driving rack 1211, and the slider 142 is coupled to the driving rack 1211 and is slidably installed in the guide member 141. When the driving rack 1211 moves up and down, the driving rack 1211 can move along the guide member 141 through the sliding member 142, thereby ensuring accurate movement of the driving rack 1211.

Alternatively, the guide 141 is a slide rail and the slider 142 is a slider. Of course, in other embodiments of the present invention, the guiding element 141 may also be a sliding slot, the sliding slot is opened on a side wall of the installation space 211 of the bottom plate 210, and the sliding element 142 is a sliding block.

Referring to fig. 3 to 7, in an embodiment of the present invention, the locking assembly 130 includes a locking set 132 and a limiting set, the locking set 132 is disposed on the bottom plate 210 in a swinging manner, the limiting set is disposed on the transmission rack 1211 of the transmission assembly 120, and the locking set 132 can slide into or out of the limiting set through the transmission assembly 120 when the pedal 110 moves downward. The locking group 132 is a moving structure of the locking assembly 130, and is a locking main body, and the limiting group is used for cooperating with the locking group 132 to lock or release the locking part.

Specifically, the limit set is disposed on the driving rack 1211, and the locking set 132 is movably disposed on the bottom plate 210. When the pedal 110 is stepped on for the first time, the pedal 110 presses the transmission rack 1211, the transmission rack 1211 drives the limit group to descend, and at the moment, the locking group 132 can slide into the limit group, and the locking group 132 is locked through the limit group. After the locking group 132 locks the limiting group, the limiting group cannot move upwards, and further the driving rack 1211 cannot move upwards, so that the driving rack 1211 is locked, and the first gear 1212 and the like driving the caster 300 to be unlocked due to the movement of the driving rack 1211 is avoided.

When the pedal 110 is stepped on for the second time, the transmission rack 1211 drives the limiting group to descend, at the moment, the locking group 132 can slide out of the limiting group, the limiting group unlocks the locking group 132, and the limiting group does not limit the locking group 132. When the second pedal 110 is released, the rack can drive the pedal 110 to reset, and drive the first gear 1212 and the like to control the caster 300 to unlock.

In one embodiment, the limit set includes a limit block 131, the driving rack 1211 of the driving assembly 120 has a mounting groove 12111, the limit block 131 is disposed in the mounting groove 12111, the limit block 131 has a limit groove 1311, and the end of the locking set 132 can move in and out of the limit groove 1311 along the mounting groove 12111.

The side wall of the driving rack 1211 is provided with an installation groove 12111, the limiting block 131 is installed in the installation groove 12111, and a certain space is formed between the periphery of the limiting block 131 and the side wall of the installation groove 12111. The stopper 131 has a recessed stopper groove 1311. Thus, when the locking group 132 locks the driving rack 1211, the driving rack 1211 moves downward, so that the end of the locking group 132 enters the mounting groove 12111, slides along the space between the inner wall of the mounting groove 12111 and the stopper 131 and enters the stopper groove 1311, and the position of the end of the locking group 132 is limited by the stopper groove 1311, thereby locking the driving rack 1211. When the locking group 132 unlocks the transmission rack 1211, the transmission rack 1211 moves downwards, the end of the locking group 132 can slide out of the limiting groove 1311 along the direction of entering the limiting groove 1311 and slide along the space between the limiting block 131 and the inner wall of the mounting groove 12111, and the unlocking of the transmission rack 1211 is realized.

In an embodiment, the position-limiting set further includes a blocking member disposed on an inner wall of the mounting groove 12111 and corresponding to the position-limiting groove 1311, and the blocking member is configured to slide an end of the locking portion into the position-limiting groove 1311. The blocking member is mounted on the side wall of the mounting groove 12111 and is located on the side of the stop block 131 away from the locking group 132. The stopper 131 has a recessed stopper groove 1311, the stopper groove 1311 is opposite to the stopper, and a certain distance exists between the stopper and the stopper groove 1311.

Thus, when the locking group 132 locks the driving rack 1211, the driving rack 1211 moves downward, so that the end of the locking group 132 can enter the installation groove 12111 and slide along the space between the inner wall of the installation groove 12111 and the limiting block 131, when the end of the locking group 132 abuts against the blocking member, the blocking member can push the end of the locking group 132 to enter the limiting groove 1311, the position of the end of the locking group 132 is limited by the limiting groove 1311, and the driving rack 1211 is locked. When the locking group 132 unlocks the transmission rack 1211, the transmission rack 1211 moves downwards, the end of the locking group 132 can slide out of the limiting groove 1311 along the direction of entering the limiting groove 1311 and slide along the space between the limiting block 131 and the inner wall of the mounting groove 12111, and the unlocking of the transmission rack 1211 is realized.

It should be noted that the limiting group may adopt a manner that the limiting block 131 is matched with the blocking member to limit the end of the locking group 132, or may only adopt the limiting block 131 to limit the end of the locking group 132. In the present invention, the example that the limiting group includes the limiting block 131 is described.

Referring to fig. 3 to 7, in an embodiment, the mounting groove 12111 has a guiding section 121111, after the limiting block 131 is mounted in the mounting groove 12111, the inner walls of the limiting block 131 and the mounting groove 12111 are enclosed into a first groove section 121112 and a second groove section 121113, one ends of the first groove section 121112 and the second groove section 121113 are communicated with the same end of the guiding section 121111, the other end of the first groove section 121112 and the other end of the second groove section 121113 are respectively communicated with two ends of the limiting groove 1311, and the end of the locking group 132 can enter the limiting groove 1311 along the guiding section 121111 and the first groove section 121112, and can also slide out of the limiting groove 1311 and enter the guiding section 121111 through the second groove section 121113.

The guide section 121111 penetrates the bottom of the transmission rack 1211 along the vertical direction, the limit block 131 is located above the guide section 121111, and the first slot section 121112 and the second slot section 121113, which are surrounded by the limit block 131 and the inner wall of the mounting slot 12111, are also located above the guide section 121111 and are communicated with the guide section 121111. When the lock set 132 does not lock the drive rack 1211, the end of the lock set 132 is positioned in the guide section 121111.

When the locking group 132 locks the drive rack 1211, the drive rack 1211 moves downward, enabling the end of the locking group 132 to slide along the guide segment 121111 into the first slot segment 121112. After the end of the locking group 132 moves to the connection between the first slot 121112 and the position-limiting slot 1311, the end of the locking group 132 slides into the position-limiting slot 1311, and the position of the end of the locking group 132 is limited by the position-limiting slot 1311, so that the locking group 132 locks the driving rack 1211. When the driving rack 1211 is unlocked, the driving rack 1211 moves downward, so that the end of the locking group 132 slides out of the limiting groove 1311, enters the second groove section 121113, passes through the second groove section 121113, and returns to the guide section 121111, and the driving rack 1211 is unlocked.

Optionally, the outer surface of the limiting block 131 includes a first section, a second section, a third section and a fourth section, the first section and the inner wall of the mounting groove 12111 are enclosed to form a first groove section 121112, one end of the second section is connected with one end of the first section, the other end of the second section is connected with the third section, the second section is located at the top of the first end, the position of a connection pool of the second section and the first end is higher than the joint of the second section and the third section, the second section and the third section are bent to form a limiting groove 1311, the other end of the third section is connected with the fourth section, and the other end of the fourth section is connected with the first section.

The first and second sections and the inner wall of the mounting groove 12111 are enclosed to form a first groove section 121112, and the third and fourth sections and the inner wall of the mounting groove 12111 are enclosed to form a second groove section 121113. After the end of the locking group 132 enters the first groove section 121112 along the guiding section 121111, the end of the locking group 132 can slide along the first end and enter the second section, and the end of the locking group 132 can move to the connection point of the second section and the third section, i.e. the end is located in the limiting groove 1311, so as to lock the transmission rack 1211. When unlocked, the end of the locking group 132 moves along the third segment into the second slot segment 121113 and along the fourth segment out of the second slot segment 121113 to return to the guide segment 121111.

Optionally, the junction of the fourth segment and the first segment forms a tip. Optionally, at least one of the first, second, third and fourth segments is arcuate. Optionally, the stop block 131 is heart-like in structure. Alternatively, the guide segment 121111 is disposed co-linearly with the partial second slot segment 121113 and the partial first slot segment 121112 is disposed obliquely to the partial second slot segment 121113. That is, the guide section 121111, a portion of the first slot section 121112, and a portion of the second slot section 121113 form a channel similar to a y-shape. Of course, in other embodiments of the invention, the guide segment 121111 is disposed relative to a portion of the first slot segment 121112 and the guide segment 121111 is also disposed obliquely relative to the second slot segment 121113, forming a Y-shaped like structure.

In an embodiment, the second groove segment 121113 has a groove depth that is less than the groove depth of the first groove segment 121112, and the first groove segment 121112 has a groove depth that is the same as the groove depth of the guide segment 121111. That is, the bottom of the second groove section 121113 is convexly disposed relative to the bottom of the guide section 121111 to form a rib. The rib can limit the end of the locking group 132, and prevent the end of the locking group 132 from entering the second groove section 121113 when the locking group 132 locks the driving rack 1211, so that the end of the locking group 132 can slide into the first groove section 121112 along the guide section 121111 and then enter the limiting groove 1311, and the locking of the driving rack 1211 is achieved. Optionally, the first slot segment 121112 is arcuate, curvilinear or dog-leg shaped. The second slot segment 121113 is arcuate, curvilinear or dog-legged.

Referring to fig. 3 to 7, in an embodiment, the locking assembly 132 includes a hanging needle 1321, one end of the hanging needle 1321 is rotatably installed on the bottom plate 210, and the other end of the hanging needle 1321 is slidably connected to the installation groove 12111 and the limiting groove 1311.

One end of the hanging needle 1321 is rotatably connected to the base plate 210, and the other end of the hanging needle 1321 is located in the guide section 121111. When the driving rack 1211 is locked, the driving rack 1211 moves downward to allow the end of the hanging needle 1321 to enter the stopper groove 1311 through the first groove section 121112 along the guide section 121111, and the driving rack 1211 is locked by the cooperation of the hanging needle 1321 with the stopper groove 1311. When the driving rack 1211 is unlocked, the driving rack 1211 moves downward to enable the end of the hanging needle 1321 to slide out of the limiting groove 1311 into the second groove section 121113 and then back into the guide section 121111.

Optionally, the end of the hanging needle 1321 has a hook. The hook portion enters the limiting groove 1311 along the guide portion 121111 and the first groove portion 121112, and hooks the limiting groove 1311 to lock the driving rack 1211. When the driving rack 1211 moves downward, the hook portion is separated from the stopper groove 1311, enters the second groove segment 121113, and returns to the guide segment 121111 along the second groove segment 121113.

In one embodiment, the locking assembly 132 further includes an elastic member 1322, and the elastic member 1322 connects the hanging needle 1321 and the bottom plate 210, so as to realize the automatic rotation of the hanging needle 1321. After the bottom of the hanging needle 1321 is rotatably disposed on the bottom plate 210, one end of the elastic member 1322 is connected to the bottom plate 210, the other end of the elastic member 1322 is connected to the hanging needle 1321, and the elastic force of the elastic member 1322 enables the hanging needle 1321 to automatically perform a rotation motion, so that the hook portion of the hanging needle 1321 can slide along the guide segment 121111, the first slot segment 121112, and the second slot segment 121113. Optionally, the elastic member 1322 is a torsion spring.

In one embodiment, the locking assembly 132 further includes a third mounting seat 1323, the third mounting seat 1323 is disposed on the bottom plate 210, and the third mounting seat 1323 is used for rotatably mounting the hanging pin 1321. Optionally, a third mounting seat 1323 is further slidably connected to the driving rack 1211 for guiding the movement of the driving rack 1211 and supporting the driving rack 1211.

Referring to fig. 3 to 7, the operation process of the service brake mechanism 100 using the locking assembly 130 of the present embodiment is as follows:

when the caster 300 is locked, the foot pedal 110 is stepped on, the foot pedal 110 drives the transmission rack 1211 to move downwards, the transmission rack 1211 drives the first gear 1212 engaged with the transmission rack 1211 to rotate, the first gear 1212 drives the coaxial second gear 1221 to rotate, the second gear 1221 drives the third gear 1222 engaged with the second gear to rotate when rotating, and when the third gear 1222 rotates, the third gear 1222 drives the rotating rod 123 to synchronously rotate so as to lock the caster 300. While the transmission rack 1211 moves downwards, the hanging needle 1321 can slide into the first groove section 121112 along the guide section 121111, and further move into the limiting groove 1311 of the limiting block 131, and the locking transmission of the transmission rack 1211 is realized through the matching of the limiting groove 1311 and the hanging needle 1321. When the foot pedal 110 is released, the engagement between the latch 1321 and the stopper 131 can limit the upward movement of the transmission rack 1211, so that the engagement between the transmission rack 1211 and the first gear 1212, the second gear 1221, the third gear 1222, and the rotating rod 123 can accurately lock the caster 300, and at this time, the foot brake mechanism 100 locks the supporting base 200, and the supporting base 200 is fixed and cannot move.

When the caster 300 is unlocked, the pedal 110 is stepped again, the pedal 110 drives the transmission rack 1211 to move downwards, and at the same time, the hanging needle 1321 can slide out of the limiting groove 1311 and enter the second groove section 121113. When the foot pedal 110 is released, the upward movement of the drive rack 1211 enables the latch 1321 to slide out of the second slide slot back into the guide section 121111. Moreover, the transmission rack 1211 can drive the pedal 110 to ascend while ascending, and further the transmission rack 1211 can drive the first gear 1212 engaged with the transmission rack to rotate reversely, the first gear 1212 drives the second coaxial gear 1221 to rotate, the second gear 1221 drives the third gear 1222 engaged with the second coaxial gear 1221 to rotate, and when the third gear 1222 rotates, the third gear 1222 can drive the rotating rod 123 to rotate reversely, so as to unlock the caster 300, at this time, the foot brake mechanism 100 unlocks the bearing base 200, and the bearing base 200 can move along the ground through the caster 300.

Referring to fig. 8 and 9, in another embodiment of the present invention, the locking assembly 130 includes a self-locking gas spring 133, one end of the self-locking gas spring 133 is connected to the driving rack 1211 of the driving assembly 120, and the other end of the self-locking gas spring 133 is connected to the base plate 210. The self-locking gas spring 133 is a locking and unlocking member of the driving rack 1211. When the driving rack 1211 moves downward, the driving rack 1211 can drive the self-locking gas spring 133 to stretch, and at this time, the self-locking gas spring 133 can be locked, i.e., the position of the driving rack 1211 is locked, so that the driving rack 1211 is limited from moving upward. When the driving rack 1211 moves downward again, the driving rack 1211 can drive the self-locking gas spring 133 to move downward to unlock the self-locking gas spring 133, the self-locking gas spring 133 unlocks the driving rack 1211, and the driving rack 1211 can move upward. It should be noted that the self-locking gas spring 133 is a conventional structure, and is not described in detail herein.

Optionally, the locking assembly 130 further includes a first rotating pair and a second rotating pair disposed at two ends of the self-locking gas spring 133, and the self-locking gas spring 133 rotatably connects the driving rack 1211 and the bottom plate 210 through the first rotating pair and the second rotating pair. Optionally, the first rotating pair and the second rotating pair are rotating shafts, ball pairs or other components capable of realizing rotating connection.

Referring to fig. 3, fig. 5, 8 and 9, the operation of the service brake mechanism 100 using the locking assembly 130 of the present embodiment is as follows:

when the caster 300 is locked, the foot pedal 110 is stepped on, the foot pedal 110 drives the transmission rack 1211 to move downwards, the transmission rack 1211 drives the first gear 1212 engaged with the transmission rack 1211 to rotate, the first gear 1212 drives the coaxial second gear 1221 to rotate, the second gear 1221 drives the third gear 1222 engaged with the second gear to rotate when rotating, and when the third gear 1222 rotates, the third gear 1222 drives the rotating rod 123 to synchronously rotate so as to lock the caster 300. While the driving rack 1211 moves downward, the driving rack 1211 can drive the self-locking gas spring 133 to stretch, so that the self-locking gas spring 133 can lock the driving rack 1211. When the foot pedal 110 is released, the self-locking gas spring 133 can limit the upward movement of the transmission rack 1211, so that the transmission rack 1211 can be accurately locked with the first gear 1212, the second gear 1221, the third gear 1222 and the rotating rod 123, and at this time, the foot brake mechanism 100 locks the supporting base 200, and the supporting base 200 is fixed and cannot move.

When the caster 300 is unlocked, the pedal 110 is stepped on again, the pedal 110 drives the transmission rack 1211 to move downwards, at this time, the transmission rack 1211 can drive the self-locking gas spring 133 to stretch, so that the self-locking gas spring 133 unlocks the transmission rack 1211. When the pedal 110 is released, the transmission rack 1211 can drive the pedal 110 to ascend, and then the transmission rack 1211 can drive the first gear 1212 engaged with the transmission rack to reversely rotate, the first gear 1212 drives the coaxial second gear 1221 to rotate, the second gear 1221 drives the third gear 1222 engaged with the second gear 1221 to rotate, and when the third gear 1222 rotates, the third gear 1222 can drive the rotating rod 123 to reversely rotate so as to unlock the caster 300, at this time, the foot brake mechanism 100 unlocks the bearing base 200, and the bearing base 200 can move along the ground through the caster 300.

Referring to fig. 1 and 2, the present invention also provides a load-bearing base 200, which includes a plurality of casters 300 and at least one of the service brake mechanisms 100 of the above embodiments. The caster 300 may be rotatably disposed at the bottom of the base plate 210 of the service brake mechanism 100, and the service brake mechanism 100 is disposed at the base plate 210 and movably coupled to the caster 300 for locking or unlocking the caster 300. When the foot brake mechanism 100 of the above embodiment is adopted in the supporting base 200 of the present invention, the caster 300 can be locked and unlocked by the single foot pedal 110, so that the occupied space of the foot brake mechanism 100 can be reduced, the operation by the user can be facilitated, and the wrong pedal stepping can be avoided.

When the carrying base 200 of the present invention is used, the carrying base 200 is moved to a desired position by the caster 300, and then the foot pedal 110 is stepped, the caster 300 is locked by the foot brake mechanism 100, and the carrying base 200 is fixed and cannot move. After use, the foot pedal 110 is stepped on again, the caster 300 is unlocked by the foot brake mechanism 100, and the carrying base 200 can move. Alternatively, the number of service brake mechanisms 100 is two, with two casters 300 being connected to each service brake mechanism 100. Of course, in other embodiments of the present invention, one caster 300 or more casters 300 may also be connected to each footbrake mechanism 100.

In one embodiment, the supporting base 200 further includes a housing 220, the housing 220 is disposed on the bottom plate 210 and covers the foot brake mechanism 100, the foot pedal 110 of the foot brake mechanism 100 is exposed out of the housing 220 and flush with the top surface of the housing 220, and the rest of the foot brake mechanism 100 is disposed in the housing 220. The safety of using is guaranteed, the user injury caused by the fact that the foot brake mechanism 100 is in contact with the user is avoided, meanwhile, other components can be prevented from being in contact with the foot brake mechanism 100, and the service performance of the foot brake mechanism 100 is guaranteed. .

The invention also provides a mobile medical device, which comprises a medical device and the bearing base 200 in the embodiment, wherein the medical device is positioned on the bearing base 200 and moves along with the bearing base 200 or is locked by the bearing base 200. After the bearing base 200 of the embodiment is adopted by the mobile medical equipment, the mobile medical equipment can be moved and locked, the use convenience of the medical equipment is ensured, the medical equipment can be prevented from moving during locking, and the safety of an operation is ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.