阅读说明：本技术 一种液压车底架调节结构 (Hydraulic vehicle underframe adjusting structure ) 是由 陆泽鸿 于 2021-07-06 设计创作，主要内容包括：本发明涉及医用液压车领域,公开了一种液压车底架调节结构,包括驱动装置、升降装置、调节装置、刹车装置、主体、第一踏板和第二踏板,调节装置包括承载件、第一调节组件和第二调节组件,第一调节组件和第二调节组件分别设于两容纳槽中,且第一调节组件和第二调节组件均与第二踏板连接；升降装置包括第一排气开关和第二排气开关。液压车底架调节结构通过调节装置改变升降装置的高度,通过调整调节组件与排气开关的距离,实现了床体两端下降程度的不同,从而实现了床体倾斜的调节,改变传统的手摇方式,通过排气开关实现床体高度的调节,便于机械结构,使得整个装置的结构简单,体积小,不会占用过多的空间,且装置整体的机械故障率低。(The invention relates to the field of medical hydraulic vehicles, and discloses a hydraulic vehicle chassis adjusting structure which comprises a driving device, a lifting device, an adjusting device, a brake device, a main body, a first pedal and a second pedal, wherein the adjusting device comprises a bearing piece, a first adjusting component and a second adjusting component, the first adjusting component and the second adjusting component are respectively arranged in two accommodating grooves, and the first adjusting component and the second adjusting component are both connected with the second pedal; the lifting device comprises a first exhaust switch and a second exhaust switch. The hydraulic vehicle chassis adjusting structure changes the height of the lifting device through the adjusting device, and the difference of the descending degree of the two ends of the bed body is realized by adjusting the distance between the adjusting assembly and the exhaust switch, so that the inclination of the bed body is adjusted, the traditional hand-cranking mode is changed, the height of the bed body is adjusted through the exhaust switch, and the hydraulic vehicle chassis adjusting structure is convenient for a mechanical structure, simple in structure, small in size, free of occupying excessive space, and low in mechanical failure rate of the whole device.)

1. The utility model provides a structure is adjusted to hydraulic pressure car chassis which characterized in that: the lifting device is arranged at two ends of the main body and connected with the driving device, the first pedal is positioned below the main body and connected with the driving device, the adjusting device is arranged at the inner side of the main body, the second pedal is positioned below the main body and connected with the adjusting device, and the braking devices are arranged at two ends of the main body;

the adjusting device comprises a bearing piece, a first adjusting assembly and a second adjusting assembly, the bearing piece is connected with the main body, two accommodating grooves are formed in the bearing piece, the first adjusting assembly and the second adjusting assembly are respectively arranged in the two accommodating grooves, and the first adjusting assembly and the second adjusting assembly are both connected with the second pedal;

the lifting device comprises a first exhaust switch and a second exhaust switch, the first exhaust switch is arranged on the inner side face of the first adjusting component, and the second exhaust switch is arranged on the inner side face of the second adjusting component.

2. The hydraulic vehicle underframe adjusting structure according to claim 1, wherein: first adjusting part includes first pivot, first connecting piece, first transmission shaft and first splenium of pressing, one of them is located to first pivot in the holding tank, just the both ends of first pivot all with the second footboard is connected, first connecting piece is located in the first pivot, the one end of first transmission shaft with the top of first connecting piece is connected, first splenium is located adjustably the other end of first transmission shaft.

3. The hydraulic vehicle underframe adjusting structure according to claim 2, wherein: the first pressing portion comprises a first connecting column, a first pressing piece and a first bolt, one end of the first connecting column is connected with the first transmission shaft, the other end of the first connecting column is connected with the first bolt, and one end, close to the first exhaust switch, of the first bolt is connected with the first pressing piece.

4. The hydraulic vehicle underframe adjusting structure according to claim 1, wherein: the second adjusting component comprises a second rotating shaft, a second connecting piece, a second transmission shaft and a second pressing portion, the second rotating shaft is arranged in the accommodating groove, the two ends of the second rotating shaft are connected with the second pedal, the second connecting piece is arranged on the second rotating shaft, one end of the second transmission shaft is connected with the top of the second connecting piece, and the second pressing portion is adjustably arranged at the other end of the second transmission shaft.

5. The hydraulic vehicle underframe adjusting structure according to claim 1, wherein: the second pressing part comprises a second connecting column, a second pressing piece and a second bolt, one end of the second connecting column is connected with the second transmission shaft, the other end of the second connecting column is connected with the second bolt, and one end, close to the second exhaust switch, of the second bolt is connected with the second pressing piece.

6. The hydraulic vehicle underframe adjusting structure according to claim 1, wherein: the driving device comprises a third rotating shaft, a fourth rotating shaft, a movable beam, a transmission frame and a pressing plate, wherein the third rotating shaft is arranged at the bottom of the main body, one end of the third rotating shaft is provided with the transmission frame, the bottom of the transmission frame is connected with the fourth rotating shaft, the movable beam penetrates through the transmission frame, one end of the transmission frame is connected with the movable beam, and the pressing plate is arranged at two ends of the movable beam.

7. The hydraulic vehicle underframe adjusting structure according to claim 6, wherein: the lifting device further comprises a driving cylinder, a base, a telescopic column, a baffle and an elastic piece, wherein the base is connected with the main body, the driving cylinder is arranged at the top of the base, the base is close to one end of the pressing plate and is provided with the telescopic column, the baffle penetrates through the telescopic column, the elastic piece is arranged between the baffle and the base, and the elastic piece is sleeved on the telescopic column.

8. The hydraulic vehicle underframe adjusting structure according to claim 6, wherein: the driving device further comprises a limiting device, and the limiting device is arranged at the bottom of the movable beam.

9. The hydraulic vehicle underframe adjusting structure according to claim 1, wherein: the main part includes the extension board, the extension board is located the both sides of main part, just the bottom of extension board with it connects to hold the carrier.

10. The hydraulic vehicle underframe adjusting structure according to claim 1, wherein: the brake device comprises wheels and brake components, the brake components are connected with the main body, and the bottoms of the two ends of the brake components are connected with the wheels.

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of medical hydraulic vehicles, in particular to a chassis adjusting structure of a hydraulic vehicle.

[ background of the invention ]

The sickbed is usually arranged in a hospital and used for resting patients, the sickbed mainly comprises a bed body and a chassis, the chassis of the existing hydraulic vehicle is often provided with a hand cranking device, the bed body above the sickbed can be lifted by rotating the hand cranking device so as to meet the required height, the mode is easy to cause the condition that a rotating wheel is blocked, the lifting cannot be normally carried out, the mode wastes time and labor, the adjusted height cannot be accurately controlled, the sickbed can only be horizontally adjusted, the inclination of the bed body cannot be realized, the application range is limited, the sickbed of the hand cranking mode has a complex structure, the required space is large, the failure rate of the device is high, and the sickbed driven to lift by some cylinders is always required to be pressed by a person to release the gas in the cylinders so as to adjust the height of the bed body, but the hand pressing mode cannot control the amount of the discharged gas, so as to cause the height of the bed body not to be accurately controlled, or the degree of inclination, the use is inconvenient.

[ summary of the invention ]

The invention aims to solve the problems and provides a chassis adjusting structure of a hydraulic vehicle, which solves the problems that the chassis adjusting height of the existing hydraulic vehicle is not accurate, a bed body cannot be obliquely arranged, the structure is complex, the volume is large and the production cost is high.

In order to achieve the purpose, the invention adopts the following technical scheme:

a chassis adjusting structure of a hydraulic vehicle comprises a driving device, a lifting device, an adjusting device, a brake device, a main body, a first pedal and a second pedal, wherein the driving device is arranged at one side of the main body, the lifting device is arranged at two ends of the main body and is connected with the driving device, the first pedal is positioned below the main body and is connected with the driving device, the adjusting device is arranged at the inner side of the main body, the second pedal is positioned below the main body and is connected with the adjusting device, and the brake device is arranged at two ends of the main body;

the adjusting device comprises a bearing piece, a first adjusting assembly and a second adjusting assembly, the bearing piece is connected with the main body, two accommodating grooves are formed in the bearing piece, the first adjusting assembly and the second adjusting assembly are respectively arranged in the two accommodating grooves, and the first adjusting assembly and the second adjusting assembly are both connected with the second pedal;

the lifting device comprises a first exhaust switch and a second exhaust switch, the first exhaust switch is arranged on the inner side face of the first adjusting component, and the second exhaust switch is arranged on the inner side face of the second adjusting component.

Preferably, the first adjusting component comprises a first rotating shaft, a first connecting piece, a first transmission shaft and a first pressing part, the first rotating shaft is arranged in one of the accommodating grooves, two ends of the first rotating shaft are connected with the second pedal, the first connecting piece is arranged on the first rotating shaft, one end of the first transmission shaft is connected with the top of the first connecting piece, and the first pressing part is adjustably arranged at the other end of the first transmission shaft.

Preferably, the first pressing portion includes a first connecting column, a first pressing piece and a first bolt, one end of the first connecting column is connected to the first transmission shaft, the other end of the first connecting column is connected to the first bolt, and one end of the first bolt, which is close to the first exhaust switch, is connected to the first pressing piece.

Preferably, the second adjusting component comprises a second rotating shaft, a second connecting piece, a second transmission shaft and a second pressing portion, the second rotating shaft is arranged in the other accommodating groove, two ends of the second rotating shaft are connected with the second pedal, the second connecting piece is arranged on the second rotating shaft, one end of the second transmission shaft is connected with the top of the second connecting piece, and the second pressing portion is adjustably arranged at the other end of the second transmission shaft.

Preferably, the second pressing portion comprises a second connecting column, a second pressing piece and a second bolt, one end of the second connecting column is connected with the second transmission shaft, the other end of the second connecting column is connected with the second bolt, and one end, close to the second exhaust switch, of the second bolt is connected with the second pressing piece.

Preferably, drive arrangement includes third pivot, fourth pivot, walking beam, driving frame and clamp plate, the third pivot is located the bottom of main part, the one end of third pivot is equipped with the driving frame, the bottom of driving frame is connected with the fourth pivot, the walking beam runs through the driving frame, just the one end of driving frame with the walking beam is connected, the clamp plate is located the both ends of walking beam.

Preferably, elevating gear still including driving actuating cylinder, base, flexible post, baffle and elastic component, the base with the main part is connected, drive actuating cylinder and locate the top of base, the base is close to the one end of clamp plate is equipped with flexible post, the baffle runs through flexible post, the elastic component is located the baffle with between the base, just the elastic component cover is located on the flexible post.

Preferably, the driving device further comprises a limiting device, and the limiting device is arranged at the bottom of the movable beam.

Preferably, the main body comprises extension plates, the extension plates are arranged on two sides of the main body, and the bottom of the extension plates is connected with the bearing piece.

Preferably, brake equipment includes wheel and brake assembly, brake assembly with the main part is connected, the bottom at brake assembly both ends is connected with the wheel.

The contribution of the invention lies in: according to the hydraulic vehicle underframe adjusting structure, the height of the lifting device is changed through the adjusting device, the difference of descending degrees of two ends of the bed body is realized by adjusting the distance between the adjusting assembly and the exhaust switch, so that the inclination of the bed body is adjusted, the traditional hand-operated mode is changed, the height of the bed body is adjusted through the exhaust switch, the mechanical structure is facilitated, the whole device is simple in structure, small in size and low in production cost, excessive space cannot be occupied, and the mechanical failure rate of the whole device is low.

[ description of the drawings ]

FIG. 1 is a schematic diagram of the structure of one embodiment of the invention;

FIG. 2 is a schematic view of the first adjustment assembly, one of the lift devices and the first exhaust port of the present invention;

FIG. 3 is a schematic view of a second adjustment assembly, another lifting device and a second exhaust port of the present invention;

FIG. 4 is a schematic view of a lift and a first exhaust port of the present invention;

FIG. 5 is a schematic view of another lift and second vent of the present invention;

FIG. 6 is a schematic view of the adjusting device and two lifting devices of the present invention;

FIG. 7 is a schematic view of the construction of one of the lift, platen and walking beam of the present invention;

FIG. 8 is a schematic view of the structure of the main body, the carrier, the second pedal and the brake assembly of the present invention;

FIG. 9 is a schematic view of the bearing member and the first and second shafts of the present invention;

FIG. 10 is a schematic view of a second pressing portion according to the present invention;

FIG. 11 is a schematic structural view of a first pressing portion according to the present invention;

fig. 12 is a schematic structural view of the first pressing portion and the first transmission shaft according to the present invention;

FIG. 13 is a schematic structural diagram of one embodiment of the present invention;

FIG. 14 is a schematic structural diagram of one embodiment of the present invention;

wherein: the device comprises a driving device 1, a lifting device 2, an adjusting device 3, a brake device 4, a main body 5, a first pedal 6 and a second pedal 7;

the air conditioner comprises a third rotating shaft 11, a fourth rotating shaft 12, a moving beam 13, a transmission frame 14, a pressure plate 15, a limiting device 16, a first exhaust switch 21, a second exhaust switch 22, a driving cylinder 23, a base 24, a telescopic column 25, a baffle 26, an elastic piece 27, a bearing piece 31, an accommodating groove 311, a first adjusting component 32, a first rotating shaft 321, a first connecting piece 322, a first transmission shaft 323, a first pressing part 324, a first connecting column 3241, a first pressing piece 3242, a first bolt 3243, a second adjusting component 33, a second rotating shaft 331, a second connecting piece 332, a second transmission shaft 333, a second pressing part 334, a second connecting column 3341, a second pressing piece 3342, a second bolt 3343, a wheel 41, a brake component 43 and an extension plate 51.

[ detailed description ] embodiments

The following examples are further illustrative and supplementary to the present invention and do not limit the present invention in any way.

As shown in fig. 1 to 14, an underframe adjusting structure of a hydraulic vehicle comprises a driving device 1, a lifting device 2, an adjusting device 3, a braking device 4, a main body 5, a first pedal 6 and a second pedal 7, wherein the driving device 1 is arranged at one side of the main body 5, the lifting device 2 is arranged at two ends of the main body 5, the lifting device 2 is connected with the driving device 1, the first pedal 6 is arranged below the main body 5, the first pedal 6 is connected with the driving device 1, the adjusting device 3 is arranged at the inner side of the main body 5, the second pedal 7 is arranged below the main body 5, the second pedal 7 is connected with the adjusting device 3, and the braking device 4 is arranged at two ends of the main body 5;

the adjusting device 3 comprises a bearing part 31, a first adjusting component 32 and a second adjusting component 33, the bearing part 31 is connected with the main body 5, two accommodating grooves 311 are formed in the bearing part 31, the first adjusting component 32 and the second adjusting component 33 are respectively arranged in the two accommodating grooves 311, and the first adjusting component 32 and the second adjusting component 33 are both connected with the second pedal 7;

elevating gear 2 includes first exhaust switch 21 and second exhaust switch 22, first exhaust switch 21 is located elevating gear 2 is close to the medial surface of first adjusting part 32, second exhaust switch 22 is located elevating gear 2 is close to the medial surface of second adjusting part 33.

The hydraulic vehicle chassis structure comprises a driving device 1, two lifting devices 2, an adjusting device 3, a brake device 4, a main body 5, a first pedal 6 and a second pedal 7, wherein the two driving devices 1 are used for driving the two lifting devices 2 to operate, the lifting devices 2 are inflated to enable the lifting devices 2 to lift a bed body, the adjusting device 3 is used for adjusting the height of the bed body, specifically, the height of the lifting devices 2 is changed through the adjusting device 3, so that the height of the bed body is changed, the height of one end of the bed body can be reduced, the height of the other end of the bed body is unchanged, the bed body is inclined, a user can conveniently lie and lean against the bed body, the brake device 4 is used for controlling the hydraulic vehicle to advance and stop, the first pedal 6 is used for controlling the driving device 1 to enable the first pedal to inflate the lifting devices 2, the second pedal 7 is used for controlling the adjusting device 3 to enable the second pedal to adjust the height of the lifting devices 2, so that it assumes an inclined shape.

To be more specific, the adjusting device 3 includes a bearing 31, a first adjusting component 32 and a second adjusting component 33, the lifting device 2 includes a first exhaust switch 21 and a second exhaust switch 22, the first adjusting component 32 contacts with the first exhaust switch 21 by stepping on the second pedal 7, or the second adjusting component 33 contacts with the second exhaust switch 22, so as to adjust the height of the lifting device 2 at two ends, specifically, firstly, we can step on the first pedal 6 to inflate the lifting device 2, specifically, step on the first pedal 6, since the first pedal 6 is connected with the fourth rotating shaft 12 to drive it to rotate, and the fourth rotating shaft 12 is connected with the driving frame 14 to drive the driving frame 14 to move, and the driving frame 14 drives the moving beam 13 to move, so that the pressing plates 15 at two ends of the moving beam 13 apply acting force to the telescopic column 25 in the lifting device 2, thereby driving the baffle 26 to compress the elastic element 27 and driving the inflation process, so that the driving cylinder 23 in the lifting device 2 is lifted to lift the bed body above to a certain height.

When the height of the bed body needs to be adjusted or the bed body is tilted, the second pedal 7 can be stepped by the adjusting device 3, since the second pedal 7 is connected to the first rotating shaft 321 and the second rotating shaft 331, the first pressing portion 324 can be driven to contact the first exhaust switch 21, that is, the second pressing portion 334 can be driven to contact the second exhaust switch 22, specifically, the stepping direction or the distance between the pressing portion and the exhaust switch is adjusted, further, since the first pressing portion 324 and the second pressing portion 334 are respectively connected to the first transmission shaft 323 and the second transmission shaft 333 with adjustable distances, the position of the first pressing portion 324 on the first transmission shaft 323 or the position of the second pressing portion 334 on the second transmission shaft 333 can be adjusted, so that the distances between the first pressing portion 324 and the second pressing portion 334 and the first exhaust switch 21 and the second exhaust switch 22 are different, when the second pedal 7 is stepped on, the situation that the two sides fall to different heights occurs, so that the bed body above the hydraulic vehicle is inclined.

According to the hydraulic vehicle underframe adjusting structure, the height of the lifting device 2 is changed through the adjusting device 3, the descending degrees of two ends of the bed body are different by adjusting the distance between the adjusting assembly and the exhaust switch, so that the inclination of the bed body is adjusted, the traditional hand-cranking mode is changed, the height of the bed body is adjusted through the exhaust switch, the mechanical structure is facilitated, the whole device is simple in structure and small in size, excessive space cannot be occupied, and the mechanical failure rate of the whole device is low.

To be further described, the first adjusting assembly 32 includes a first rotating shaft 321, a first connecting piece 322, a first transmission shaft 323 and a first pressing portion 324, the first rotating shaft 321 is disposed in one of the accommodating grooves 311, two ends of the first rotating shaft 321 are connected to the second pedal 7, the first connecting piece 322 is disposed on the first rotating shaft 321, one end of the first transmission shaft 323 is connected to a top of the first connecting piece 322, and the first pressing portion 324 is adjustably disposed at the other end of the first transmission shaft 323.

The first adjusting component 32 includes a first rotating shaft 321, a first connecting piece 322, a first transmission shaft 323 and a first pressing portion 324, the second pedal 7 is stepped to drive the first rotating shaft 321 to rotate, so as to drive the first connecting piece 322 connected with the first rotating shaft to move, the first connecting piece 322 drives the first transmission shaft 323 to move, so as to drive the first pressing portion 324 to move, the first pressing portion 324 contacts with the first exhaust switch 21 to deflate, the contact time is determined according to the distance between the first pressing portion 324 and the first exhaust switch 21, and therefore the height of one of the lifting devices 2 is adjusted.

In a further description, the first pressing portion 324 includes a first connection column 3241, a first pressing piece 3242 and a first bolt 3243, one end of the first connection column 3241 is connected to the first transmission shaft 323, the other end of the first connection column 3241 is connected to the first bolt 3243, and one end of the first bolt 3243 close to the first exhaust switch 21 is connected to the first pressing piece 3242.

The first pressing portion 324 includes a first connection column 3241, a first pressing piece 3242 and a first bolt 3243, the first connection column 3241 is adjustably connected to the first transmission shaft 323, specifically, after the position of the first connection column 3241 on the first transmission shaft 323 is adjusted, the position of the lower half portion of the first connection column 3241 on the first bolt 3243 is also adjusted accordingly, and then the first connection column 3241 is fixed on the first transmission shaft 323 by a nut, so that the adjustment of the distance between the first pressing portion 324 and the first exhaust switch 21 can be completed.

In a further description, the second adjusting component 33 includes a second rotating shaft 331, a second connecting piece 332, a second transmission shaft 333 and a second pressing portion 334, the second rotating shaft 331 is disposed in the other accommodating groove 311, two ends of the second rotating shaft 331 are both connected to the second pedal 7, the second connecting piece 332 is disposed on the second rotating shaft 331, one end of the second transmission shaft 333 is connected to the top of the second connecting piece 332, and the second pressing portion 334 is adjustably disposed at the other end of the second transmission shaft 333.

The second adjusting component 33 includes a second rotating shaft 331, a second connecting piece 332, a second transmission shaft 333 and a second pressing portion 334, and by stepping on the first pedal 6, the second rotating shaft 331 is driven to rotate, so as to drive the second connecting piece 332 connected therewith to move, the second connecting piece 332 drives the second transmission shaft 333 to move, so as to drive the second pressing portion 334 to move, the second pressing portion 334 contacts with the second exhaust switch 22 to deflate, the contact time is determined according to the distance between the second pressing portion 334 and the second exhaust switch 22, so as to adjust the height of another lifting device 2.

In a further description, the second pressing part 334 includes a second connection column 3341, a second pressing piece 3342, and a second bolt 3343, one end of the second connection column 3341 is connected to the second transmission shaft 333, the other end of the second connection column 3341 is connected to the second bolt 3343, and one end of the second bolt 3343 close to the second air release switch 22 is connected to the second pressing piece 3342.

The second pressing portion 334 includes a second connecting column 3341, a second pressing piece 3342 and a second bolt 3343, the second connecting column 3341 is adjustably connected to the second transmission shaft 333, specifically, after the position of the second connecting column 3341 on the second transmission shaft 333 is adjusted, the position of the lower half portion of the second connecting column 3341 on the second bolt 3343 is also adjusted, and the second connecting column 3341 is fixed on the second transmission shaft 333 by a nut, so that the adjustment of the distance between the second pressing portion 334 and the second air release switch 22 can be completed.

Further, the driving device 1 includes a third rotating shaft 11, a fourth rotating shaft 12, a moving beam 13, a transmission frame 14 and a pressing plate 15, the third rotating shaft 11 is disposed at the bottom of the main body 5, one end of the third rotating shaft 11 is disposed at the transmission frame 14, the bottom of the transmission frame 14 is connected with the fourth rotating shaft 12, the moving beam 13 penetrates through the transmission frame 14, one end of the transmission frame 14 is connected with the moving beam 13, and the pressing plate 15 is disposed at two ends of the moving beam 13.

Drive arrangement 1 includes third pivot 11, fourth pivot 12, walking beam 13, driving frame 14 and clamp plate 15, third pivot 11 has played the effect of connecting subject 5, driving frame 14 has been connected to the one end of third pivot 11, fourth pivot 12 has been connected again to the bottom of driving frame 14, through trampling first footboard 6, thereby the operation of fourth pivot 12 has been realized, thereby the motion of driving frame 14 has been driven, the one end of driving frame 14 is connected with walking beam 13 again, thereby the motion of walking beam 13 has been driven, after walking beam 13 moves, the motion of the clamp plate 15 at its both ends has been driven, clamp plate 15 acts on elevating gear 2, thereby the aerated process of elevating gear 2 has been realized, the function of jacking the bed body has been realized.

Further, the lifting device 2 further comprises a driving cylinder 23, a base 24, a telescopic column 25, a baffle 26 and an elastic member 27, wherein the base 24 is connected with the main body 5, the driving cylinder 23 is arranged at the top of the base 24, one end of the base 24 close to the pressing plate 15 is provided with the telescopic column 25, the baffle 26 penetrates through the telescopic column 25, the elastic member 27 is arranged between the baffle 26 and the base 24, and the elastic member 27 is sleeved on the telescopic column 25.

Elevating gear 2 is still including driving actuating cylinder 23, base 24, flexible post 25, baffle 26 and elastic component 27, it is used for driving the lift of the bed body to drive actuating cylinder 23, flexible post 25 on the base 24 can be towards the direction shrink of base 24 when contacting clamp plate 15, can expose baffle 26 this moment, clamp plate 15 contacts and extrudes baffle 26 with baffle 26 again, baffle 26 compresses elastic component 27, thereby pneumatic process has been realized, can reply original position when clamp plate 15 moves to certain process, continue to carry out above operation, it reaches required height with the bed body jacking to drive actuating cylinder 23.

In a further description, the driving device 1 further includes a limiting device 16, and the limiting device 16 is disposed at the bottom of the movable beam 13.

Stop device 16 is used for limiting the stroke of clamp plate 15, avoids clamp plate 15 to extrude excessively to baffle 26, leads to baffle 26 to take place deformation for walking beam 13 and clamp plate 15 all remove in certain within range, inflate the operation to elevating gear 2.

To be further described, the main body 5 includes extension plates 51, the extension plates 51 are disposed on two sides of the main body 5, and the bottom of the extension plates 51 is connected to the carrier 31.

Extension board 51 is located the both sides of main part 5, and extension board 51 is used for connecting and holds 31 and main part 5, avoids holding 31 direct and main part 5 contact and takes place to collide with, has also left certain space for first adjusting part 32 and second adjusting part 33 simultaneously, can not take place more colliding with main part 5 at first adjusting part 32 and second adjusting part 33 during operation.

In a further illustration, the braking device 4 includes a wheel 41 and a braking component 42, the braking component 42 is connected to the main body 5, and the wheel 41 is connected to the bottom of the two ends of the braking component 42.

Although the present invention has been described with reference to the above embodiments, the scope of the present invention is not limited thereto, and modifications, substitutions and the like of the above members are intended to fall within the scope of the claims of the present invention without departing from the spirit of the present invention.