阅读说明：本技术 刹车装置 (Brake device ) 是由 许文宝 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种刹车装置,其包括驱动机构、随动机构与锁定机构,所述驱动机构可滑动地安设于行李箱的箱壁上并可相对所述箱壁转动,所述随动机构安设于所述行李箱的箱体中并与所述驱动机构的输出端连接,所述锁定机构连接于所述随动机构与所述行李箱的后轮或/和前轮之间,所述驱动机构可相对所述箱壁滑动及转动以驱使所述随动机构相对所述箱体滑动,使得所述锁定机构随之做靠近或远离所述后轮或/和所述前轮的往复运动,从而与所述后轮或/和所述前轮相卡接或分离,以限制或允许所述后轮或/和所述前轮转动。本发明刹车装置的结构简单且便于操作,可对行李箱之滚轮的转动进行限定,以提高使用的安全性。(The invention discloses a brake device, which comprises a driving mechanism, a follow-up mechanism and a locking mechanism, wherein the driving mechanism is slidably arranged on the wall of a trunk and can rotate relative to the wall, the follow-up mechanism is arranged in the trunk and is connected with the output end of the driving mechanism, the locking mechanism is connected between the follow-up mechanism and a rear wheel or/and a front wheel of the trunk, the driving mechanism can slide and rotate relative to the wall to drive the follow-up mechanism to slide relative to the trunk, so that the locking mechanism can perform reciprocating motion close to or far away from the rear wheel or/and the front wheel along with the follow-up mechanism, and is clamped with or separated from the rear wheel or/and the front wheel, and the rotation of the rear wheel or/and the front wheel is limited or allowed. The brake device of the invention has simple structure and convenient operation, and can limit the rotation of the roller of the luggage case so as to improve the use safety.)

1. A brake device, comprising a driving mechanism, a follower mechanism and a locking mechanism, wherein the driving mechanism is slidably mounted on a wall of a trunk and can rotate relative to the wall, the follower mechanism is mounted in a trunk of the trunk and is connected with an output end of the driving mechanism, the locking mechanism is connected between the follower mechanism and a rear wheel or/and a front wheel of the trunk, the driving mechanism can slide and rotate relative to the wall to drive the follower mechanism to slide relative to the trunk, so that the locking mechanism can perform reciprocating motion close to or far away from the rear wheel or/and the front wheel along with the follower mechanism, and therefore the locking mechanism can be clamped with or separated from the rear wheel or/and the front wheel, and the rotation of the rear wheel or/and the front wheel can be limited or allowed.

2. A brake apparatus according to claim 1, wherein the locking mechanism is connected between the follower mechanism and the rear wheel and is movable or rotatable relative to the rear wheel, and the follower mechanism slides in a direction perpendicular to the drive mechanism.

3. The brake apparatus according to claim 1, further comprising a mounting seat provided in the case, an upper end of the mounting seat being mounted on the case wall and having a slide groove arranged in a widthwise direction of the case, a lower end of the mounting seat being located in the case, and the mounting seat having a seating cavity arranged in a lengthwise direction of the case; the driving mechanism can be slidably and rotatably arranged on the opposite upper side of the mounting cavity, the follow-up mechanism can be slidably arranged on the opposite lower side of the mounting cavity, and the follow-up mechanism is in constant butt joint with the output end of the driving mechanism.

4. The brake apparatus of claim 3, wherein the mounting seat comprises a base, a rear cover and a front cover, the base is detachably connected to the upper side wall of the luggage case, the front cover and the rear cover are disposed on the front and rear opposite sides of the base, the front cover and the rear cover enclose the mounting cavity therebetween, and the rear cover and the base are engaged at the top ends thereof to enclose the sliding groove.

5. The brake apparatus according to claim 3, wherein the driving mechanism includes a switch and a swinging member, the switch is slidably engaged with the sliding groove, one end of the swinging member is rotatably connected to the switch, and the other end of the swinging member is constantly abutted to the follower mechanism.

6. The brake apparatus according to claim 3, wherein the follower mechanism includes a sliding member and a pulling member, the sliding member is slidably engaged with the receiving cavity along a longitudinal direction of the mounting base and is constantly abutted against an output end of the driving mechanism, one end of the pulling member is fixedly connected to the sliding member, and the other end of the pulling member is fixedly connected to the locking mechanism.

7. The brake apparatus of claim 6, wherein the follower mechanism further comprises a fixed member, an elastic member and a guiding member, two fixed members are symmetrically embedded in the sliding member, the elastic member is disposed between the sliding member and the mounting seat for resetting the mounting seat, one guiding member is disposed on each of the left and right opposite sides of the mounting seat, the guiding members are rotatable relative to the mounting seat, one end of the pulling member is fixed in the fixed member, and the other end of the pulling member is fixed in the locking mechanism after passing around the guiding member.

8. The brake apparatus according to claim 2, wherein the locking mechanism includes a clip movably disposed on a wheel seat of the luggage case, the rear wheel is rotatably coupled to the wheel seat, one end of the clip is connected to the traction member of the follower mechanism, and the other end of the clip is linearly movable relative to the wheel seat under the traction force of the traction member, so that the clip portion of the clip can be engaged with or disengaged from a wheel groove of the rear wheel, thereby restricting or allowing the rotation of the rear wheel.

9. The brake apparatus of claim 8, wherein the locking mechanism further comprises an actuating member movably disposed on the wheel seat, the actuating member is connected to the traction member and abuts against the engaging member, and the abutting surfaces of the actuating member and the engaging member are two corresponding inclined surfaces, the actuating member can drive the engaging member to move linearly toward or away from the rear wheel under the traction force of the traction member.

10. The brake apparatus according to claim 2, wherein the locking mechanism includes a latch member rotatably mounted on a wheel seat of the luggage compartment, one end of the latch member is connected to the traction member of the follower mechanism, and the other end of the latch member is pivotally connected to the wheel seat, so that the traction member is wound on the wheel seat, and the latch member is capable of rotating relative to the wheel seat under the traction force of the traction member, and the latch portion of the latch member is engaged with or disengaged from the wheel groove of the rear wheel, thereby limiting or allowing the rotation of the rear wheel.

Technical Field

The invention relates to the field of suitcases, in particular to a brake device for braking a trunk.

Background

In the luggage industry, a suitcase is also called a "traveling case" and refers to a case for carrying articles when going out, and the conventional suitcase generally comprises a case body for carrying articles, and a pull rod and a pulley which are arranged on the case body so as to be convenient for dragging and walking. In order to achieve flexible steering and convenient use, the pulleys of the luggage case are mostly universal wheels, but the universal wheels are flexible in rotation and convenient to drag, but the universal wheels are too flexible, so that the luggage case has the potential safety hazard of backward sliding or self rolling when walking on an uphill slope or a downhill slope or on an automobile or a subway.

Therefore, there is a need for a brake device that is simple in structure and easy to operate to limit the rotation of the pulley of the conventional luggage case, thereby overcoming the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a brake device which can realize orientation effect, has simple structure and is convenient to operate, thereby limiting the rotation of wheels of a luggage case and improving the use safety.

In order to achieve the above object, the present invention discloses a brake apparatus, which comprises a driving mechanism, a follower mechanism and a locking mechanism, the drive mechanism is slidably mounted on a wall of the luggage case and is rotatable relative to the wall, the follow-up mechanism is arranged in the trunk body of the luggage case and is connected with the output end of the driving mechanism, the locking mechanism is connected between the follower mechanism and the rear wheels or/and the front wheels of the luggage case, the driving mechanism slides and rotates relative to the box wall to drive the follow-up mechanism to slide relative to the box wall, so that the locking mechanism follows a reciprocating movement towards or away from the rear wheel or/and the front wheel, so as to be engaged with or disengaged from the rear wheel or/and the front wheel to restrict or allow the rotation of the rear wheel or/and the front wheel.

Compared with the prior art, the brake device of the invention is integrally arranged in the box body of the luggage case, does not influence the appearance and the use of the luggage case, and particularly comprises a driving mechanism, a follow-up mechanism and a locking mechanism, because the driving mechanism is slidably arranged on the wall of the luggage case and can rotate relative to the wall, the driving mechanism can be conveniently operated by the outside of the luggage case to slide and rotate relative to the wall, so that the follow-up mechanism which is arranged in the box body of the luggage case and is connected with the output end of the driving mechanism can be driven to slide relative to the wall, the locking mechanism connected between the follow-up mechanism and the rear wheel or/and the front wheel of the luggage case can carry out reciprocating motion close to or far away from the rear wheel or/and the front wheel, the locking mechanism of the reciprocating motion can be clamped with or separated from the rear wheel or/and the front wheel so as to limit or allow the rotation of the rear wheel or/and the front wheel, the brake device has the advantages of simple integral structure and convenient operation, and can conveniently limit the rotation of the pulley of the trunk, thereby effectively improving the use safety.

Preferably, the locking mechanism is connected between the follower mechanism and the rear wheel and can move or rotate relative to the rear wheel, and the sliding direction of the follower mechanism is perpendicular to the sliding direction of the driving mechanism.

Preferably, the brake device further comprises a mounting seat arranged in the box body, the upper end of the mounting seat is installed on the box wall and is provided with a sliding groove arranged along the transverse width direction of the box body, the lower end of the mounting seat is located in the box body, and the mounting seat is provided with a mounting cavity arranged along the longitudinal direction of the box body; the driving mechanism can be slidably and rotatably arranged on the opposite upper side of the mounting cavity, the follow-up mechanism can be slidably arranged on the opposite lower side of the mounting cavity, and the follow-up mechanism is in constant butt joint with the output end of the driving mechanism.

Preferably, the mounting seat includes a base, a rear cover and a front cover, the base is detachably connected to the upper side wall of the luggage case, the front cover and the rear cover are installed on two opposite sides of the front and the rear of the base, the arrangement cavity is enclosed between the front cover and the rear cover, and the top ends of the rear cover and the base are matched to enclose the sliding groove.

Preferably, the driving mechanism comprises a switch and a swinging piece, the switch is slidably clamped in the chute, one end of the swinging piece is rotatably connected with the switch, and the other end of the swinging piece is constantly abutted to the following mechanism.

Preferably, the following mechanism further includes a fixing member, an elastic member and a guiding member, two fixing members are symmetrically embedded in the sliding member, the elastic member is installed between the sliding member and the mounting seat and used for resetting the mounting seat, two guiding members are respectively installed on two opposite sides of the left side and the right side of the mounting seat, the guiding members can rotate relative to the mounting seat, one end of the traction member is fixedly installed in the fixing member, and the other end of the traction member is fixedly installed in the locking mechanism after passing through the guiding member.

Preferably, the locking mechanism includes a clamping member movably disposed on a wheel seat of the luggage case, the rear wheel is rotatably sleeved on the wheel seat, one end of the clamping member is connected with a traction member of the follower mechanism, and the other end of the clamping member is capable of making linear motion relative to the wheel seat under the action of the traction force of the traction member, so that a clamping portion of the clamping member can be clamped with or separated from a wheel groove of the rear wheel, thereby limiting or allowing the rotation of the rear wheel.

Preferably, the locking mechanism further includes a driving member movably disposed on the wheel seat, the driving member is connected to the traction member and abuts against the engaging member, abutting surfaces of the driving member and the engaging member are two inclined surfaces corresponding to each other, and the driving member can drive the engaging member to move linearly toward or away from the rear wheel under the action of the traction force of the traction member.

Preferably, the locking mechanism includes a clamping member rotatably installed on the wheel seat of the luggage case, one end of the clamping member is connected with the traction member of the follower mechanism, and the other end of the clamping member is pivoted on the wheel seat, so that the traction member is wound on the wheel seat, and the clamping member can rotate relative to the wheel seat under the action of the traction force of the traction member, and then the clamping portion of the clamping member is clamped or separated from the wheel groove of the rear wheel, thereby limiting or allowing the rotation of the rear wheel.

Drawings

Fig. 1 is a schematic perspective view of the trunk according to the present invention.

Fig. 2 is a schematic perspective view of the brake apparatus of the present invention assembled in a trunk.

Fig. 3 is a sectional view of the first embodiment of the brake apparatus of the present invention.

Fig. 4 is a perspective view of a part of the components of the braking apparatus according to the present invention.

Fig. 5 is a sectional view of a part of components of the brake apparatus of the present invention.

Fig. 6 is a schematic perspective view of the mounting base of the present invention.

Fig. 7 is an exploded view of an angle of the mount of the present invention.

Fig. 8 is an exploded view of the mounting base of the present invention from another angle.

Fig. 9 is a perspective view of the slider of the follower mechanism of the present invention.

Fig. 10 is a perspective view of the fixing member of the follower mechanism of the present invention.

Fig. 11 is an enlarged view of a portion a in fig. 3.

Fig. 12 is a perspective view of an angle of the locking mechanism in the first embodiment of the present invention.

Fig. 13 is a schematic perspective view of another angle of the locking mechanism in the first embodiment of the present invention.

Fig. 14 is a cross-sectional view of a locking mechanism in a second embodiment of the invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring initially to fig. 1 and 2, a brake apparatus 100 is disclosed that is adapted to be installed in a trunk 200 for preventing the trunk 200 from rolling back or rolling on a car, a subway, or a road surface having a certain slope, and for maintaining the trunk 200 at a desired angle. The luggage 200 according to the present invention includes a case 201 for loading an article, and a drawbar 202, a front wheel 203, and a rear wheel 204 mounted on the case 201. In the present application, the pull rod 202 is fixed to the box 201 through the pull rod fixing seat 205, and can perform a telescopic motion at the top end of the box 201, so as to facilitate a control operation of pulling or lifting the box 201. The luggage case 200 includes two front wheels 203 and two rear wheels 204, and the front wheels 203 and the rear wheels 204 are rotatably installed at the front and rear opposite ends of the bottom side of the case 201 through corresponding wheel seats 206, respectively, so that the sliding operation of the case 201 is easily and conveniently realized through the rolling of the front wheels 203 and the rear wheels 204. Specifically, in the preferred embodiment of the present invention, each front wheel 203 and each rear wheel 204 includes two rollers 207, the two rollers 207 are symmetrically and rotatably mounted on the wheel axle 2061 of the wheel seat 206 so as to rotate around the wheel axle 2061, and each roller 207 is mounted on one side of the wheel axle 2061 and has a plurality of wheel grooves 207a (see fig. 3) distributed along the circumference.

Referring to fig. 1 to 3, a brake apparatus 100 according to a preferred embodiment of the present invention includes a driving mechanism 10, a follower mechanism 20 and a locking mechanism 30, the driving mechanism 10 is slidably mounted on a wall of a trunk 201 of a luggage 200 and can rotate relative to the wall, the follower mechanism 20 is mounted in the trunk 201 of the luggage 200 and is connected to an output end of the driving mechanism 10, the locking mechanism 30 is connected between the follower mechanism 20 and a rear wheel 204 or/and a front wheel 203 of the luggage 200, the driving mechanism 30 can slide and rotate relative to the wall to drive the follower mechanism 20 to slide relative to the wall, such that the locking mechanism 30 is caused to reciprocate closer to or further from the rear wheels 204 or/and the front wheels 203, thereby engaging or disengaging the rear wheels 204 or/and the front wheels 203 to restrict or allow the rear wheels 204 or/and the front wheels 203 to rotate, thereby achieving braking and releasing of the luggage 200.

Referring to fig. 2 to 13, the specific structure and operation principle of the first embodiment of the braking device 100 of the present invention will be described in detail:

referring to fig. 2 and 3, in the present embodiment, the sliding direction of the follower 20 is perpendicular to the sliding direction of the driving mechanism 10, specifically, the driving mechanism 10 can slide linearly along the width direction of the box 201, and the follower 20 can slide linearly along the length direction of the box 201, so as to avoid interference and effectively utilize space. The locking mechanism 30 is specifically connected between the following mechanism 20 and the rear wheel 204, and can move linearly relative to the rear wheel 204, so as to be clamped with or separated from the corresponding wheel groove 207a on the rear wheel 204, and further, only the rotation of the rear wheel 204 needs to be limited, so that the luggage 200 can be braked, the structure is simple, and the manufacturing cost can be effectively reduced.

Specifically, when the number of the rear wheels 204 is two, a locking mechanism 30 is respectively connected between the following mechanism 20 and each rear wheel 204, and the two locking mechanisms 30 are symmetrically arranged relative to the following mechanism 20, so that the limitation or limitation removal of the rotation of the two rear wheels 204 can be synchronously realized, and the braking effect is more effective and stable. Of course, in other embodiments, the locking mechanism 30 may be connected only between the following mechanism 20 and the front wheel 203, or the locking mechanism 30 may be connected between the following mechanism 20 and both the front wheel 203 and the rear wheel 204, and the rotation of the front wheel 203 and the rear wheel 204 may be synchronously restricted, thereby achieving the braking operation of the luggage 200.

Referring to fig. 2 and 3, in order to facilitate fixing and assembling, the brake device 100 of the present invention further includes a mounting seat 40 disposed in the box 201, an upper end of the mounting seat 40 is mounted on a wall of the box 201 and has a sliding groove 40a disposed along a transverse width direction of the box 201, a lower end of the mounting seat 40 is disposed in the box 201, and the mounting seat 40 has a mounting cavity 40b disposed along a longitudinal direction of the box 201. One side of the mounting seat 40 can be attached to the sidewall of the box 201, so that the mounting seat 40 is assembled more stably in the box 201. The driving mechanism 10 is installed on the opposite upper side of the installation cavity 40b, the upper end of the driving mechanism is slidably clamped in the sliding groove 40a, the lower end of the driving mechanism can swing in the installation cavity 40b, the following mechanism 20 is installed on the opposite lower side of the installation cavity 40b and can slide in the installation cavity 40b, and the following mechanism 20 is constantly abutted to the output end of the driving mechanism 10.

Specifically, the mounting seat 40 includes a base 41, a rear cover 42 and a front cover 43, the base 41 is detachably connected to the upper side wall of the luggage 200, the front cover 43 and the rear cover 42 are installed on two opposite sides of the front and rear of the base 41, the top ends of the rear cover 42 and the base 41 are matched to enclose a sliding chute 40a, a mounting cavity 40b is enclosed among the assembled front cover 43, the base 41 and the rear cover 43, and the follower 20 is slidably disposed in the mounting cavity 40b and located near the front cover 43.

Referring to fig. 4 to 8, in order to simplify the structure, the mounting base 40 of the present invention is detachably connected to the pull rod fixing base 205, so that the mounting base 40 is simply and conveniently fixed in the box 201 through the pull rod fixing base 205, thereby making the structure more compact. Specifically, the pull rod fixing seat 205 is fixed on the top side wall of the box 201, the upper end of the pull rod fixing seat is located outside the box 201, the lower end of the pull rod fixing seat is located in the box 201, two penetrating grooves 205a for fixing the pull rod 202 are arranged on the left and right opposite sides of the pull rod fixing seat 205, and a penetrating groove 205b for the driving mechanism 10 to slide is arranged between the two penetrating grooves 205 a. The opposite lower end of the pull rod fixing seat 205 is further provided with a first positioning column 2051 and a second positioning column 2052 which are arranged in a one-to-one correspondence manner, the first positioning column 2051 is arranged along the lengthwise direction of the box body 201, and the second positioning column 2052 is arranged along the direction perpendicular to the first positioning column 2051. Correspondingly, the relative upper sides of the rear cover 42 and the base 41 are correspondingly provided with a sleeve hole 42a and a sleeve hole 41a matched with the second positioning column 2052, the relative upper side of the base 41 is further provided with an inserting hole 41b matched with the first positioning column 2051, the fastened rear cover 42 and the base 41 can be sequentially clamped on the second positioning column 2052 through the sleeve hole 42a and the sleeve hole 41a, and the first positioning column 2051 is correspondingly inserted in the inserting hole 41b, so that the mounting seat 40 and the pull rod fixing seat 205 are effectively fixed from two directions, and further the mounting seat 40 is fixed in the box 201.

Preferably, a first positioning column 2051 and a second positioning column 2052 are respectively disposed between the penetrating groove 205b and the penetrating grooves 205a on both sides, the two first positioning columns 2051 on both sides are symmetrically arranged, and the two second positioning columns 2052 are symmetrically disposed. Two mating holes 42a and 41a are correspondingly formed on the opposite upper sides of the rear cover 42 and the base 41, so as to be engaged with the two second positioning pillars 2052 one by one. Of course, two opposite ends of the opposite upper side of the base 41 are respectively provided with an inserting hole 41b, so as to be inserted into the two first positioning posts 2051 one by one. The two positioning columns 2051 and the two second positioning columns 2052 are disposed, so that the mounting base 40 and the pull rod fixing base 205 are more stably assembled.

Referring to fig. 6 to 8, the base 41 is box-shaped and substantially shaped like a Chinese character 'mu', the rear cover 42 is plate-shaped and substantially shaped like a rectangle, and the front cover 43 is plate-shaped and substantially shaped like a 'T'. In order to assemble the rear cover 42 on the base 41 conveniently and quickly, the base 41 is provided with a first engaging groove 41c and a second engaging groove 41d which penetrate through the base 41 in the front-rear direction. Specifically, the number of the first engaging grooves 41c is two, the two first engaging grooves 41c are symmetrically arranged below the sliding groove 40a along the transverse width direction of the base 41, the number of the second engaging grooves 41d is one, and the second engaging grooves 41d are disposed at the center of the lower end of the base 41. Correspondingly, a first hook 421 matching with the first fastening groove 41c and a second hook 422 matching with the second fastening groove 41d are disposed on one side of the rear cover 42 opposite to the base 41. Then, between the rear cover 42 and the base 41, except for being sequentially sleeved on the second positioning column 2052 through the sleeve hole 42a and the sleeve hole 41a corresponding to the upper sides of the two for fixing, the assembly which is firm and accurate in alignment is realized through the corresponding clamping of the first hook 421 and the first clamping groove 41c and the corresponding clamping of the second hook 422 and the second clamping groove 41 d.

In order to conveniently and rapidly assemble the front cover 43 on the base 41, the opposite lower end of the base 41 is further provided with a third catching groove 41e arranged along the lengthwise direction thereof and a fixing post 411 disposed between the first catching groove 41c and the third catching groove 41 e. Specifically, the number of the third engaging grooves 41e is one, the upper portion is large and the lower portion is small and has a certain taper, the number of the fixing posts 411 is two, and the two fixing posts 411 are symmetrically arranged on the left and right sides of the base 41 along the transverse width direction of the base 41. Correspondingly, the left side and the right side of the upper end of the front cover 43 are provided with the clamping holes 43a which are arranged corresponding to the two fixing columns 411 one by one, the lower end of the front cover 43 is provided with the first inserting portion 431 corresponding to the third clamping groove 41e in shape, and the front cover 43 can be firmly and accurately assembled on the base 41 through the clamping of the clamping holes 43a and the fixing columns 411 one by one and the inserting of the first inserting portion 431 and the third clamping groove 41 e.

Preferably, in order to further optimize the structure, the lower end of the third engaging groove 41e is communicated with the second engaging groove 41d, the second hook 422 may sequentially pass through the second engaging groove 41d and the third engaging groove 41e and then be engaged with the seat body of the base 41, and the first inserting portion 431 is inserted into the third engaging groove 41e above the second hook 422 and has a certain gap with the upper end surface of the second hook 422, which is not interfered with each other. Furthermore, the front cover 43 is provided with a second inserting portion 432 and a clamping hole 43b corresponding to the upper and lower opposite sides of the side opposite to the base 41, and the rear cover 42 is provided with a positioning member 423 corresponding to the clamping hole 43b, so that the positioning member 423 of the rear cover 42 can pass through the base 41 and be clamped in the clamping hole 43b of the front cover 43, and meanwhile, the second inserting portion 432 of the front cover 43 is correspondingly clamped in the base 41, so that the front cover 43, the rear cover 42 and the base 41 are assembled more firmly.

Referring to fig. 5 to 8, in order to facilitate the rotation of the driving mechanism 10, a pivot shaft 412 is disposed at the center of the opposite upper side of the base 41, and the driving mechanism 10 is rotatably mounted on the pivot shaft 412 so as to rotate with the pivot shaft 412 as a pivot center in the mounting chamber 40 b. Specifically, the pivot shaft 412 is located at the center of the two first engaging grooves 41c, a through hole 42b is formed in the back cover 42 at a position corresponding to the pivot shaft 412, and the driving mechanism 10 is rotatably engaged with the through hole 42b and the shaft hole 412a of the pivot shaft 412 at the front and back opposite ends thereof, respectively, so as to rotate. In addition, a positioning member 424 is further disposed between the through hole 42b and the positioning member 423 on the rear cover 42, so as to facilitate assembly of the follower 20 and provide guiding and limiting effects on movement of the follower 20. The through holes 42b, the positioning members 423 and the positioning members 424 are linearly arranged along the longitudinal direction of the rear cover 42, so that the assembly with accurate alignment can be realized.

Referring to fig. 3 to 6, the driving mechanism 10 includes a switch 11 and a swinging member 12, the switch 10 is slidably clamped in the sliding slot 40a of the mounting base 40, the swinging member 12 is rotatably disposed in the mounting cavity 40b, one end of the swinging member 12 is rotatably connected with the switch 11, and the other end of the swinging member 12 is constantly abutted to the following mechanism 20.

Specifically, the switch 11 includes an operating portion 111, a sliding portion 112, and a connecting portion 113 connected in sequence from top to bottom, the sliding portion 112 is slidably connected to the sliding slot 40a, the operating portion 111 is located outside the box 201 and is inserted into the insertion slot 205b of the pull rod fixing seat 205, and the connecting portion 113 is located in the installation cavity 40b and is constantly connected to the following mechanism 20. The insertion groove 205b limits the displacement of the operation portion 111, thereby limiting the sliding of the sliding portion 112. Preferably, the operating portion 111, the sliding portion 112 and the connecting portion 113 are of an integral structure, so as to simplify the structure and facilitate assembly.

Specifically, the swinging member 12 includes a clamping portion 121, a pivoting portion 122 and a contact portion 123 sequentially connected from top to bottom, the clamping portion 121 is rotatably connected to the connecting portion 113, front and rear opposite ends of the pivoting portion 122 are rotatably clamped in the shaft hole 412a and the through hole 42b of the pivoting shaft 412, respectively, and the contact portion 123 is constantly contacted with the follower mechanism 20. Preferably, the clamping portion 121, the pivoting portion 122 and the abutting portion 123 are of an integral structure, so as to further simplify the structure and facilitate assembly.

When the operating portion 111 of the switch 11 is operated, the sliding portion 112 slides in the sliding slot 40a, so that the connecting portion 113 drives the engaging portion 121 to move left and right in the accommodating cavity 40b, and the abutting portion 123 is driven to rotate relative to the mounting base 40 by using the pivot shaft 412 as a pivot center, and the abutting portion 123 can rotate to push the following mechanism 20 or release the pushing of the following mechanism 20, so that the locking mechanism 30 is driven to move relative to the rear wheel 204 and engage with or separate from the rear wheel 204.

Referring to fig. 3 to 11, the follower 20 includes a sliding member 21 and a pulling member 22, the sliding member 21 is slidably clamped in the mounting cavity 40b along the longitudinal direction of the mounting seat 40 and is constantly abutted against the output end of the driving mechanism 10, one end of the pulling member 22 is fixedly connected to the sliding member 21, the other end of the pulling member 22 is fixedly connected to the locking mechanism 30, and the pulling member 22 can pull or release the locking mechanism 30 under the driving of the sliding member 21, so that the locking mechanism 30 can move relative to the rear wheel 204 and is clamped or separated from the rear wheel 204. It should be noted that the cross-sectional directions of fig. 3 and 5 are different.

Specifically, the sliding member 21 is engaged with the base 41 with a clearance fit and constantly abuts against the abutting portion 123 of the driving mechanism 10, and the sliding member 21 is specifically shaped like a frame. The head and the tail of the traction piece 22 are respectively provided with a traction head 221, and the head and the tail of the traction piece 22 are clamped in the sliding piece 21 and the locking mechanism 30 through the corresponding traction heads 221. The sliding member 21 can move linearly up and down under the pushing force of the abutting portion 123 of the driving mechanism 10, so as to pull or release the pulling member 22, so that the pulling member 22 can drive the locking mechanism 30 to move linearly close to or away from the rear wheel 204, thereby engaging with or disengaging from the rear wheel 204 to limit or allow the rotation of the rear wheel 204.

In order to realize accurate and effective movement of the following mechanism 20, the following mechanism 20 further includes a fixing member 23, an elastic member 24 and a guide member 25, and the fixing member 23 and the guide member 25 may be disposed in a one-to-one correspondence. Two fixed parts 23 are symmetrically embedded in the sliding part 21, and an elastic part 24 is respectively connected between the sliding part 21 and the two fixed parts 23 along the longitudinal direction of the sliding part 21, so that the effects of buffering and flexibility compensation can be achieved. The elastic member 24 is also installed between the mounting portion 211 of the slider 21 and the mount 40 for the return of the mount 40, where the elastic member 24 is not shown in the drawing. The left and right opposite sides of the mounting seat 40 are respectively provided with a guide 25, and the guide 25 can rotate relative to the mounting seat 40 and is specifically rotatably sleeved on the corresponding fixing column 411. One end of the pulling member 22 is fixed in the fixing member 23 by a pulling head 221, and the other end of the pulling member 22 is fixed in the locking mechanism 30 by another pulling head 221 after passing around the guiding member 25.

With reference to fig. 5, 9 and 10, the sliding member 21 is provided with two spaced and parallel placing grooves 21a, and the two fixing members 23 are slidably provided in the two placing grooves 21a in a one-to-one correspondence manner. The fixing member 23 includes a sleeve portion 231, a slot 23a and a limiting slot 23b, the sleeve portion 231 is located at the opposite upper end of the fixing member 23, the slot 23a is located at the opposite lower end of the fixing member 23, the limiting slot 23b is located at the opposite side wall of the fixing member 23 and is communicated with the slot 23a, the pulling member 22 is inserted into the limiting slot 23b, and the pulling head 221 at the head end of the pulling member is clamped in the slot 23 a. In this embodiment, the connection point of the pulling element 22 and the fixing element 23 is lower than the winding point of the pulling element 22 and the guiding element 25. When the fixed member 23 slides downwards along with the sliding member 21 in the mounting seat 40, the pulling member 22 is tensioned by the guide member 25 and the limiting groove 23b, so that the locking mechanism moves linearly towards the direction close to the rear wheel 204 until the locking mechanism is clamped with the rear wheel 204, and the elastic member arranged between the mounting portion 211 of the sliding member 21 and the mounting seat 40 is compressed in the process; when the switch 11 is pushed in the reverse direction, the sliding member 21 slides upwards in the mounting seat 40 under the restoring force of the elastic member 24, and the fixed member 23 is reset, so that the pulling member 22 is released, and the pulling member 22 drives the locking mechanism 30 to move linearly away from the rear wheel 204, so as to be separated from the rear wheel 204, and thus the rear wheel 204 is allowed to rotate.

Referring to fig. 11 to 13, the locking mechanism 30 includes a clip member 31 movably disposed on a wheel seat 206 of the luggage 200, one end of the clip member 31 is connected to the traction member 22 of the follower 20, and the other end of the clip member 31 is linearly movable relative to the wheel seat 206 under the traction force of the traction member 22, so that a clip portion 311 of the clip member 31 is engaged with or disengaged from a wheel groove 207a of the rear wheel 204, thereby limiting or allowing the rotation of the rear wheel 204. Preferably, an elastic member (not shown) for resetting is further disposed between the clip 31 and the wheel seat 206, and the elastic member can be specifically connected between the connecting portion 312 of the clip 31 and the wheel seat 206.

Specifically, in the present embodiment, the locking mechanism 30 further includes a driving member 32 movably disposed on the wheel seat 206, the driving member 32 is connected to the traction member 22 and abuts against the engaging member 31, and the driving member 32 can drive the engaging member 31 to move linearly toward or away from the rear wheel 204 under the action of the traction force of the traction member 22, so that the engaging portion 311 of the engaging member 31 is engaged with or disengaged from the wheel groove 207a of the rear wheel 204, thereby limiting or allowing the rotation of the rear wheel 204. The engaging portion 311 is engaged with the wheel groove 207a in a concave-convex manner. When the rear wheel 204 has two rollers 207, two clamping portions 311 are symmetrically disposed on the side of the clamping member 31 opposite to the rear wheel 204, and the two clamping portions 311 and the two rollers 207 are disposed one by one and can be synchronously clamped in the wheel grooves 207a of the two rollers 207.

Preferably, the abutting surfaces of the driving member 32 and the clamping member 31 are two corresponding inclined surfaces. Specifically, the wheel seat 206 has a receiving cavity 206a, the engaging member 31 is movably engaged with an opposite upper end of the receiving cavity 206a, the driving member 32 is movably engaged with an opposite lower end of the receiving cavity 206a, and the pulling member 22 passes through the engaging member 31 and then is engaged with the engaging slot 32a of the driving member 32 via the pulling head 221. More specifically, the accommodating cavity 206a is rectangular, an inclined groove 31a is disposed on a side of the clamping member 31 opposite to the rear wheel 204, an upper end of the driving member 32 is slidably clamped in the inclined groove 31a, an opening is disposed on a side of the accommodating cavity 206a opposite to the rear wheel 204, and the clamping portion 311 of the clamping member 31 can be inserted into the wheel groove 207a of the rear wheel 204 through the opening or withdrawn from the wheel groove 207a to be clamped with or separated from the wheel groove 207 a.

The first embodiment of the braking device 100 of the present invention specifically operates on the following principle: when the luggage box 200 needs to be braked, the switch 11 is pushed to slide in the sliding groove 40a of the mounting seat 40, so as to drive the swinging piece 12 to swing in the mounting cavity 40 b; the swinging member 12 pushes against the sliding member 21, so that the sliding member 21 linearly slides downwards along the longitudinal direction of the mounting seat 40, thereby pulling the two pulling members 22, so that the two pulling members 22 are tightened and move upwards, and thereby driving the driving member 32 correspondingly connected with the two pulling members 22 to linearly move upwards relative to the wheel seat 206; the driving member 32 moving upward pushes the corresponding clamping members 31 by the inclined surfaces thereof, so that the two clamping members 31 linearly move in the corresponding accommodating cavities 206a along the transverse width direction of the mounting seat 40 under the action of the inclined force, and the clamping portions 311 of the two clamping members are close to the corresponding wheel shafts 2061, so as to be inserted into the wheel grooves 207a corresponding to the circumferential direction of the roller 207 sleeved on the corresponding wheel shafts 2061, thereby restricting the rotation of the two rear wheels 206;

when the restriction on the rotation of the rear wheel 206 needs to be released, the switch 11 is pushed in the reverse direction, and the swinging member 12 swings in the reverse direction to be reset, so that the pushing force applied to the sliding member 21 is released; the sliding member 21 slides linearly upward along with the sliding member, so as to release the traction force applied to the two traction members 22, and the two traction members 22 relax and move downward to reset, so as to drive the two driving members 32 to move linearly downward relative to the wheel seat 206, so as to release the pushing force on the corresponding clamping members 31; the two engaging members 31 are moved in a straight line in a reverse direction by the elastic members connected thereto to be restored to be away from the corresponding rollers 207 and to be withdrawn from the wheel grooves 207a to be inserted, so as to release the restriction of the rotation of the two rear wheels 206.

The structure and the operation principle of the second embodiment of the braking device 100 according to the present invention will be described in detail with reference to fig. 2, 4 to 10 and 14 as follows:

the present embodiment is different from the first embodiment mainly in that: the specific structure of the locking mechanism 30 is different, and in this embodiment, the locking mechanism 30 can rotate relative to the rear wheel 204 to approach or separate from the rear wheel 204, so as to be engaged with or disengaged from the wheel groove 207a of the rear wheel 204 to limit or allow the rotation of the rear wheel 204.

Specifically, the locking mechanism 30 includes a clamping member 31 rotatably installed on the wheel seat 206, one end of the clamping member 31 is connected to the traction member 22 of the follower mechanism 20, and the other end of the clamping member 31 is pivotally connected to the wheel seat 206, so that the traction member 22 is wound on the wheel seat 206, and the clamping member 31 can rotate relative to the wheel seat 206 under the traction force of the traction member 22, so that the clamping portion 311 of the clamping member 31 is close to or far from the wheel groove 207a of the rear wheel 204, and is clamped with or separated from the wheel groove 207a, so as to limit or allow the rotation of the rear wheel 204. Wherein, the clamping member 31 is sheet-shaped and has a certain radian. The clamping portions 311 are block-shaped, the number of the clamping portions 311 can be two, the clamping member 31 can be disposed at the symmetric center of the two rollers 207, and the two clamping portions 311 can be synchronously clamped in the wheel grooves 207a corresponding to the two rollers 207 of the rear wheel 204. Certainly, the number of the clamping portions 311 may be one, and the shape and size of the clamping portions 311 are larger than those of the two clamping portions 311, so that when the two rollers 207 of the rear wheel 204 are symmetrically assembled on the wheel seat 206, the clamping member 31 is disposed at the symmetric center of the two rollers 207, the wheel grooves 207a uniformly distributed in the circumferential direction of the sleeved portion of the two rollers 207 may be opposite to each other two by two, the relatively large clamping portions 311 may be clamped in the two opposite wheel grooves 207a at the same time, and the rolling limitation of the rear wheel 204 formed by the two rollers 207 may also be realized.

Specifically, the locking mechanism 30 further includes a pivot 33 and a fixing member 34 fixed on the wheel base 203, a head end of the engaging member 31 far away from the connecting portion with the traction member 22 is rotatably sleeved on the pivot 33, an outer side of a tail end of the engaging member 31 connected with the traction member 22 is telescopically connected with the fixing member 34, and an inner side of the tail end is convexly provided with an engaging portion 311, wherein the engaging portion 311 is specifically formed by extending an inner side wall of the engaging member 31 toward the direction of the wheel shaft 2061 of the wheel base 206. Under the action of the pulling force of the pulling member 22, the tail end of the clamping member 31 can make a telescopic movement close to or away from the fixing member 34, so that the clamping member 31 can rotate around the pivot 33 relative to the wheel seat 203, and the clamping portion 311 can then move close to or away from the wheel shaft 2061, thereby being inserted into or withdrawn from the wheel groove 207a opposite to the wheel shaft, so as to realize the braking or the braking release of the rear wheel 204. The fixing member 34 and the engaging portion 311 are disposed on the outer side and the inner side of the engaging member 31, so that the engaging member 31 and the wheel groove 207a can be conveniently and effectively inserted, and the space can be effectively utilized.

Preferably, the fixing member 34 is disposed in an inclined manner, so that the rotation of the engaging member 31 can be driven more easily and effectively. Furthermore, an elastic member 35 for returning is provided between the fixed member 34 and the engaging member 31, so that when the pulling member 22 is released, the engaging member 31 can return to the fixed member 34 by the restoring force of the elastic member 35, and the engaging portion 311 is retracted from the wheel groove 207a facing thereto, thereby releasing the restriction of the rotation of the rear wheel 204. In addition, the wheel base 206 is further provided with a limiting convex rib 36, and at least two limiting convex ribs 36 are arranged at the edge of the wheel base 206, so that a limiting groove 36a for the traction piece 22 to penetrate is formed between the at least two limiting convex ribs 36, the winding direction of the traction piece 22 is limited, and the accuracy of rotation of the clamping piece 31 is further ensured.

The second embodiment of the braking device 100 of the present invention specifically operates on the following principle: when the luggage box 200 needs to be braked, the switch 11 of the driving mechanism 10 is pushed to slide in the sliding groove 40a of the mounting seat 40, so as to drive the swinging piece 12 to swing in the mounting cavity 40 b; the swinging member 12 pushes against the sliding member 21 of the follower 20, so that the sliding member 21 slides along the longitudinal direction of the mounting seat 40, and the two pulling members 22 are pulled, so that the two pulling members 22 move upwards to drive the correspondingly connected clamping members 31 to rotate relative to the wheel seat 206, and the rotation directions of the two pulling members are opposite; the clamping portions 311 of the two rotating clamping members 31 can approach the corresponding wheel shafts 2061, so as to be correspondingly clamped with the wheel grooves 207a on the circumference of the rollers 207 of the two rear wheels 204, and further limit the rotation of the two rear wheels 204; when the restriction of the rotation of the rear wheel 204 needs to be released, the operation is reversed.

Compared with the prior art, the brake device 100 of the present invention is integrally installed in the case 201 of the luggage 200, and does not affect the shape and use of the luggage 200, and includes the driving mechanism 10, the follower mechanism 20 and the locking mechanism 30, because the driving mechanism 10 is slidably installed on the wall of the luggage 200 and can rotate relative to the wall, the driving mechanism 10 can be conveniently operated by the outside of the luggage 200 to slide and rotate relative to the wall, so as to drive the follower mechanism 20 installed in the case 201 of the luggage 200 and connected with the output end of the driving mechanism 10 to slide relative to the wall, and the locking mechanism 30 connected between the follower mechanism 20 and the rear wheel 204 or/and the front wheel 203 of the luggage 200 is made to reciprocate close to or far away from the rear wheel 204 or/and the front wheel 203, and the reciprocating locking mechanism 30 can be engaged with or disengaged from the rear wheel 204 or/and the front wheel 203, the brake device 100 of the invention has simple integral structure and convenient operation, can conveniently limit the rotation of the rear wheel 204 or/and the front wheel 203 of the luggage 100, thereby effectively improving the use safety.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.