CN213735139U

CN213735139U - Spoke type caster wheel brake device

Info

Publication number: CN213735139U
Application number: CN202022600613.2U
Authority: CN
Inventors: 陈伟峰
Original assignee: Xiamen Yirong Hardware Products Co ltd
Current assignee: Xiamen Yirong Hardware Products Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-20
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a spoke type caster wheel brake device, which is used for braking or releasing a caster wheel; the caster is provided with a body and a spoke; comprises a first elastic piece; the braking part is rotationally connected with the caster, and the braking part moves between a first position and a second position relative to the body; the braking piece rotates by taking the first shaft as an axis; the brake swing block is arranged in the spoke, one end of the brake swing block is hinged with the trundle, and the other end of the brake swing block swings relative to the body and is always abutted to the output end of the brake piece through the first elastic piece; the brake swing block swings by taking the second shaft as an axis; when the braking part is braked, the braking swing block is driven by braking power to abut against the spoke, and the braking part moves to a first position; when the braking part is released, the braking swing block is driven by the elasticity of the first elastic part to be away from the spoke, and the braking part returns to the second position. The utility model discloses a truckle is at the braking buffering effect of motion in-process, and the braking is stable, easy operation.

Description

Spoke type caster wheel brake device

Technical Field

The utility model relates to a truckle brake field, concretely relates to spoke formula truckle brake equipment.

Background

The brake device of the industrial caster wheel adopted by the traditional handcart is usually arranged on the caster wheel and adopts a foot brake mode to brake, namely when the caster wheel is in a static state, the foot brake is stepped down so as to prevent the caster wheel from moving; the brake device cannot brake the moving caster, the application range is limited, and the brake device can only be fixed in a one-to-one mode, namely one brake device corresponds to one caster, and the use is very inconvenient.

Therefore, the brake device of the prior caster is still to be further improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect or the problem that exist among the background art, provide a spoke formula brake equipment, the device can cushion the braking to the truckle in the motion, reduces its velocity of motion, and the braking is comparatively stable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a spoke-type caster braking device is used for braking or releasing a caster; the caster is provided with a body and a spoke; comprises that

A first elastic member;

the braking part is rotationally connected with the caster, and the braking part moves between a first position and a second position relative to the body; the braking piece rotates by taking the first shaft as an axis; and

the brake swing block is arranged in the spoke, one end of the brake swing block is hinged with the trundle, and the other end of the brake swing block swings relative to the body and is always abutted to the output end of the brake part through the first elastic piece; the brake swing block swings by taking the second shaft as an axis;

when the braking part is braked, the braking swing block is driven by braking power to abut against the spoke, and the braking part moves to a first position; when the braking part is released, the braking swing block is driven by the elasticity of the first elastic part to be away from the spoke, and the braking part returns to the second position.

Furthermore, the number of the brake swing blocks is two; when the braking part is braked, the two brake swinging blocks swing reversely and abut against the spoke; when the braking part is released, the two braking swinging blocks swing relatively and are far away from the spoke; two ends of the first elastic piece are fixedly connected with the two brake swing blocks respectively.

Further, the positioning device also comprises a positioning shaft which is coaxial with the second shaft; when the braking part is braked, the two brake swing blocks swing reversely by taking the positioning shaft as a fulcrum.

Further, the braking member includes a rotation member; the rotating part is rotatably connected to the caster and drives the brake swing block to abut against the spoke.

Furthermore, the braking element also comprises a traction element which is fixedly connected with the rotating element.

Further, the device also comprises a second elastic piece; the caster is also provided with a bracket; the body rotates relative to the bracket; and two ends of the second elastic part are fixedly connected with the bracket and the traction part respectively.

Further, the traction member comprises a wire rope; one end of the steel cable is fixedly connected with the rotating piece.

Furthermore, the spoke type caster wheel brake devices are divided into two groups; the integrated box comprises a box body, a third elastic piece and a sliding block moving along the axial direction of the box body; the two steel cables are integrated into a traction piece through a sliding block; the third elastic piece is arranged between the sliding block and the inner wall of the box body along the braking direction; when the traction piece is braked, the sliding block is driven by braking force to overcome the elastic force of the third elastic piece to move so that the braking piece moves to the first position; when the pulling piece is released, the sliding block is driven by the elasticity of the third elastic piece, so that the braking piece moves to the second position.

Furthermore, the traction piece also comprises a brake handle, and the brake handle is fixedly connected with the traction piece.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. firstly, the utility model drives the brake swing block to abut against the spoke for braking by braking the brake part, the structure realizes the technical effect of buffering brake of the caster wheel in the moving process, and solves the potential safety hazard of people dragging when the traditional caster wheel is in a downhill; secondly, the brake swing block is reset to the original state through the elastic force of the first elastic piece so as to wait for the next brake, and the device is simple in structure, convenient and labor-saving; furthermore, the utility model discloses assemble with ordinary truckle, the suitability is strong.

2. The two brake swing blocks are arranged, so that the braking efficiency is improved, the stress of the trundles is more uniform, and the braking transition is stable.

3. The positioning shaft is used as a fulcrum of the two brake swing blocks, the two brake swing blocks can swing reversely to the spoke at the same time, and time and labor are saved.

4. The scheme that the rotating piece is adopted to drive the brake swing block to abut against the spoke is easy to implement.

5. And the rotating part is further driven to rotate by adopting a traction mode, so that the use habit is met, and the operation is simple.

6. The second elastic part is arranged between the support and the traction part, so that the braking traction part is more labor-saving, and the return of the rotating part is facilitated.

7. The material of the steel cable is durable.

8. Two steel cables are integrated into a traction part through an integrated box, two brake devices are synchronously braked, the brake stability is higher, and the direction deviation caused by asynchronism of two caster brakes is prevented, so that the steering danger is reduced.

9. The user braking brake handle can realize this technical scheme, and in the truckle motion process, it is obviously that manual braking's mode is more convenient effective.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view illustrating braking of the present embodiment;

FIG. 4 is a schematic view of the present embodiment when released;

FIG. 5 is a general schematic view of two sets of braking devices according to the present embodiment;

fig. 6 is an enlarged view of the portion B in fig. 5.

Description of the main reference numerals:

the spoke type caster braking device 1, a first elastic element 10, a braking element 11, a rotating element 111, a cam handle 1111, a cam rotating shaft 1112, a traction element 112, a steel cable 1121, a traction element 1121a, a brake handle 1122, a brake swinging block 12, a positioning shaft 13, an integrated box 14, a box body 141, a third elastic element 142 and a sliding block 143; the caster 2, the body 21, the spoke 22 and the bracket 23; a second elastic member 15; a first axis a and a second axis b.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.

In the claims, the specification and the drawings, unless otherwise expressly limited, to the extent that directional terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" and the like are used, the positional or orientational relationships illustrated in the drawings are based on the positional and orientational relationships illustrated in the drawings and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention in any way.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.

In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.

Example one

Referring to fig. 1 to 4, there is shown a spoke-type caster brake device 1 for braking or releasing a caster 2; the caster 2 is provided with a body 21 and a spoke 22; comprising a first elastic member 10, a braking member 11 and a brake swing block 12, wherein:

the braking part 11 is rotatably connected to the caster 2, and the braking part 11 moves between a first position and a second position relative to the body 21; the braking member 11 rotates around the first axis a; the braking member 11 includes a rotation member 111 and a traction member 112; in the embodiment, the rotating member 111 is connected to the caster 2 in a rotating manner and drives the brake swing block 12 to abut against the spoke 22, in the embodiment, the rotating member 111 adopts a structure that the cam handle 1111 and the cam rotating shaft 1112 are combined, that is, the cam handle 1111 drives the cam rotating shaft 1112 to rotate, and the cam rotating shaft 1112 adopts a rectangular parallelepiped, it can be understood that the cam rotating shaft 1112 may also adopt other structures; the pulling member 112 is fixedly connected with the rotating member 111, and the pulling member 112 comprises a steel cable 1121 and a brake handle 1122; two ends of the steel cable 1121 are respectively fixed to the rotating member 111 and the brake handle 1122, i.e. one end of the steel cable 1121 is fixed to the cam handle 1111 and the other end is fixed to the brake handle 1122; the rotor 111 is braked or released by the brake handle 1122.

The brake swing block 12 is arranged in the spoke 22, one end of the brake swing block is hinged with the caster 2, and the other end of the brake swing block swings relative to the body 21 and is always abutted with the output end of the brake part 11 through the first elastic piece 10; the brake swing block 12 swings with the second shaft b as the axis; the first shaft a and the second shaft b are not coaxial, and preferably, the axes of the first shaft a, the second shaft b and the spoke 22 are positioned on the same straight line, so that the technical scheme is beneficial to stable braking of the caster 2; in this embodiment, there are two brake swing blocks 12; when the braking member 11 is braked, the two brake swing blocks 12 swing reversely and abut against the spoke 22; when the braking part 11 is released, the two brake swinging blocks 12 swing relatively and are far away from the spoke 22; two ends of the first elastic member 10 are respectively and fixedly connected to the two brake swing blocks 12, and more preferably, the first elastic member 10 adopts two sets of symmetrical springs, and the two sets of symmetrical springs are respectively located at two ends of the brake swing blocks 12, so that when the braking member 11 is released, the brake swing blocks 12 are quickly returned; the two brake swing blocks 12 are arranged, so that the braking efficiency is improved, the stress of the trundles 2 is more uniform, and the braking is more stable.

More preferably, it also comprises a positioning shaft 13, coaxial with the second axis b; when the rotating part 111 is braked, the two brake swing blocks 12 reversely swing by taking the positioning shaft 13 as a fulcrum, the technical scheme is time-saving and labor-saving, and the force on the trundles 2 is ensured to be uniform.

More preferably, a second elastic member 15 is further included; the caster 2 is also provided with a bracket 23; the body 21 rotates relative to the bracket 23; two ends of the second elastic element 15 are respectively fixed to the bracket 23 and the traction element 112, which not only saves labor for braking the traction element 112, but also helps the rotating element 111 to return.

When the braking part 11 is braked, the braking swing block 12 is driven by braking force to abut against the spoke 22, and the braking part 11 moves to a first position; when the braking member 11 is released, the brake swing block 12 is driven away from the spoke 22 by the elastic force of the first elastic member 10, and the braking member 11 is returned to the second position.

The working principle is as follows:

as shown in fig. 3, the brake handle 1122 is braked to pull the cable 1121, the cable 1121 pulls the cam handle 1111 to rotate, and at the same time, the cam shaft 1112 rotates to the first position, i.e., the diagonal line of the cam shaft 1112 abuts against the two brake pads 12, and the brake pads 12 abut against the spoke 22, thereby achieving the braking effect.

As shown in fig. 4, when the brake handle 1122 is released, the cable 1121 drives the cam handle 1111 to return due to the elastic force of the second elastic member 15, and at the same time, the cam shaft 1112 rotates to the second position, that is, the two brake swing blocks 12 are driven to return by the elastic force of the first elastic member 10 and then abut against the plane of the cam shaft 1112, so as to return to the original state for the next braking.

Example two

Referring to fig. 5 and fig. 6, the present embodiment is different from the first embodiment in that: the spoke type caster wheel brake devices 1 are divided into two groups; also included is an integration box 14 including a box body 141, a third elastic member 142, and a slider 143 moving in the axial direction of the box body 141; the two cables 1121 are integrated into a pulling member 1121a through the sliding block 143, it can be understood that the two cables 1121 are located on the same side of the sliding block 143, and the integrated pulling member 1121a is located on the other side of the sliding block 143, so that the two cables 1121 can be pulled at the same time by pulling the pulling member 1121 a; the third elastic member 142 is disposed between the slider 143 and the inner wall of the case 141 in the braking direction; when the pulling element 1121a is braked, the sliding block 143 is driven by the braking force to overcome the elastic force of the third elastic element 142, so that the braking element 11 rotates to the first position; when the pulling element 1121a is released, the slider 143 is driven by the elastic force of the third elastic element 142, so that the braking element 11 rotates to the second position.

Firstly, the utility model discloses a brake above-mentioned braking part 11 to drive brake pendulum block 12 and butt spoke 22 and brake, this structure has realized the buffer brake's of truckle 2 in the motion process technical effect, has solved the tradition truckle 2 when the downhill, the car that appears drags people's potential safety hazard; secondly, the brake swing block 12 is reset to the original state through the elastic force of the first elastic piece 10, so that the next braking step is facilitated, and the device is simple in structure, convenient and labor-saving; moreover, the utility model is assembled with the common caster 2, so that the adaptability is strong; finally, the two steel cables 1121 are integrated into a pulling member 1121a through the integration box 14, so that two brake devices are synchronously braked, the brake stability is higher, the direction deviation caused by asynchronous braking of the two casters 2 is prevented, and the steering danger is reduced.

The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention. Modifications, equivalents and other improvements which may be made to the embodiments of the invention or to some of the technical features thereof by a person of ordinary skill in the art through logical analysis, reasoning or limited experimentation in light of the above teachings of the invention or the above embodiments are intended to be included within the scope of the invention.

Claims

1. A spoke-type caster braking device is used for braking or releasing a caster; the caster is provided with a body and a spoke; the method is characterized in that: comprises that

A first elastic member;

2. A spoke-type caster brake apparatus according to claim 1, wherein: the number of the brake swing blocks is two; when the braking part is braked, the two brake swinging blocks swing reversely and abut against the spoke; when the braking part is released, the two braking swinging blocks swing relatively and are far away from the spoke; two ends of the first elastic piece are fixedly connected with the two brake swing blocks respectively.

3. A spoke-type caster brake apparatus according to claim 2, wherein: the positioning shaft is coaxial with the second shaft; when the braking part is braked, the two brake swing blocks swing reversely by taking the positioning shaft as a fulcrum.

4. A spoke-type caster brake apparatus according to any one of claims 1 to 3, wherein: the braking member comprises a rotating member; the rotating part is rotatably connected to the caster and drives the brake swing block to abut against the spoke.

5. A spoke-type caster brake apparatus according to claim 4, wherein: the braking part also comprises a traction part which is fixedly connected with the rotating part.

6. A spoke-type caster brake apparatus according to claim 5, wherein: the device also comprises a second elastic piece; the caster is also provided with a bracket; the body rotates relative to the bracket; and two ends of the second elastic part are fixedly connected with the bracket and the traction part respectively.

7. A spoke-type caster brake apparatus according to claim 5 or 6, wherein: the traction member comprises a steel cable; one end of the steel cable is fixedly connected with the rotating piece.

8. A spoke-type caster brake apparatus according to claim 7, wherein: the spoke type caster wheel brake devices are two groups, namely the number of the steel cables is two; the integrated box comprises a box body, a third elastic piece and a sliding block moving along the axial direction of the box body; the two steel cables are integrated into a traction piece through a sliding block; the third elastic piece is arranged between the sliding block and the inner wall of the box body along the braking direction; when the traction piece is braked, the sliding block is driven by braking force to overcome the elastic force of the third elastic piece to move so that the braking piece moves to the first position; when the pulling piece is released, the sliding block is driven by the elasticity of the third elastic piece, so that the braking piece moves to the second position.

9. A spoke-type caster brake apparatus according to claim 8, wherein: the traction piece further comprises a brake handle, and the brake handle is fixedly connected with the traction piece.