CN219821536U - Brake mechanism for handcart - Google Patents

Abstract

The utility model relates to the technical field of trolleys, and discloses a brake mechanism for a trolley, which comprises a mounting frame and an outer shield arranged on the inner side of the mounting frame, wherein a shell is arranged at the top end of the inner side of the mounting frame, a brake block is arranged in the outer shield, an extrusion rod is fixedly arranged at the top end of the brake block, a first spring is sleeved outside the extrusion rod, and a brake assembly for driving the brake block to move is arranged in the shell; the brake device is simple in structure, when the brake device is actually used, the moving block can be pulled to move through the brake cable, the protruding block can be moved to the extrusion rod, the extrusion ring can be extruded by the protruding block, the brake pad can be driven to move downwards through the extrusion rod, and meanwhile, the first spring can be stretched, so that the brake pad can be abutted against the surface of the roller, and the brake treatment can be completed.

Description

Brake mechanism for handcart

Technical Field

The utility model relates to the technical field of trolleys, in particular to a brake mechanism for a trolley.

Background

The trolley is a manually pushed and pulled carrying vehicle, and is an ancestor of all vehicles. While cart material handling technology is continually evolving, carts continue to be used as an integral handling tool. The handcart has wide application in production and life because of low cost, simple maintenance, convenient operation and light dead weight, can work in places where motor vehicles are inconvenient to use, and is very convenient when carrying lighter articles in short distance.

Through retrieving, in chinese patent publication No. CN216611326U, a brake mechanism for handcart is disclosed, including the handcart body, both ends are vertical to be equipped with a plurality of installation bases about the bottom surface of handcart body, the inner wall middle part of installation base transversely runs through and is equipped with a set of cavity slide, a plurality of positioning slide holes have been transversely seted up to the one end lateral wall of cavity slide, positioning slide Kong Lice's cavity slide inner chamber is equipped with L shape brake block through the screw is vertical, one side surface middle part of brake block is equipped with the wire drawing pole through the spring holder slant, wire drawing pole is located the outside one end of brake block and is provided with the brake pad through the external member activity, cavity slide is kept away from brake block one end lateral wall middle part and is equipped with the receipts line sleeve pipe, the inside one end of brake block is located the cavity slide and runs through the action of receipts line sleeve pipe through the brake cable mounting hole and be provided with the brake cable. According to the utility model, the hand brake mechanism is used for controlling the brake cable to drive the brake pad to move so as to complete synchronous brake control on the four driving wheels of the trolley body, so that the brake performance is stable and the use effect is good.

However, in the above patent, since the contact area between the brake pad and the driving wheel is small, it is difficult to stop the driving wheel in time when braking is performed, and thus braking performance is poor.

Disclosure of Invention

The utility model aims to provide a brake mechanism for a trolley, which solves the problem that the braking performance is poor because the contact area between a brake pad and a driving wheel is small, so that the driving wheel is difficult to stop in time when the trolley is braked.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a brake mechanism for handcart, includes the mounting bracket with set up in the inboard outer guard shield of mounting bracket, the inside top of mounting bracket is provided with the casing, the inside brake block that is provided with of outer guard shield, brake block top fixed mounting has the extrusion pole, the outside cover of extrusion pole is equipped with first spring, the inside brake component that is used for the drive of casing the brake block moves.

Preferably, the brake assembly comprises a moving block, a bump is fixedly arranged on one side of the bottom end of the moving block, a second spring is fixedly arranged on two sides of one end of the moving block, a brake cable is fixedly connected to one end of the moving block, and one end of the brake cable extends to the outside of the shell and is fixedly provided with a connector.

Preferably, the brake assembly further comprises a limiting plate fixedly mounted at the top end inside the shell, a sliding groove is formed in the surface, close to one side of the moving block, of the limiting plate, and sliding blocks matched with the sliding groove are fixedly mounted on two sides of the moving block.

Preferably, the inner side of the mounting frame is rotatably provided with a roller through a rotating shaft.

Preferably, the brake pad is of an arc-shaped structure, and the brake pad is made of rubber materials.

Preferably, the bump is in a semicircular structure.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has simple structure, when in actual use, the moving block can be pulled to move through the brake cable, the convex block can be moved to the extrusion rod, the convex block can extrude the extrusion ring, the extrusion rod can drive the brake block to move downwards, and meanwhile, the first spring can be stretched, so that the brake block can be abutted against the surface of the roller, the braking treatment can be finished, and the roller can be stopped in time due to the large contact area of the brake block and the roller, so that the braking performance of the mechanism is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a brake mechanism for a cart in accordance with the present utility model;

FIG. 2 is a schematic view of the internal structure of a brake mechanism for a cart according to the present utility model;

FIG. 3 is a half cross-sectional view of a brake mechanism for a cart in accordance with the present utility model;

FIG. 4 is a schematic diagram of a brake assembly of a brake mechanism for a cart according to the present utility model.

In the figure: 10-rolling wheels; 20-mounting rack; 30-an outer shield; 31-a brake pad; 32-squeeze bars; 33-a first spring; 40-a housing; 50-a brake assembly; 51-moving blocks; 52-bump; 53-a second spring; 54-brake cable; 55-connecting heads; 56-limiting plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a brake mechanism for handcart, including mounting bracket 20 and fixed mounting in the inboard outer guard shield 30 of mounting bracket 20, mounting bracket 20 inboard rotates through the pivot and installs gyro wheel 10, outer guard shield 30 is arc structure, the cover is outside at gyro wheel 10, the inside top fixed mounting of mounting bracket 20 has casing 40, outer guard shield 30 inside slidable mounting has brake block 31, brake block 31 is arc structure, and brake block 31 specifically adopts the rubber material to make, brake block 31 top fixed mounting has extrusion rod 32, the tip of extrusion rod 32 is arc structure, the through-hole that outer guard shield 30 top was offered is run through on extrusion rod 32 top and extend to inside casing 40, extrusion rod 32 outside cover is equipped with first spring 33, fixed connection between first spring 33 and brake block 31 and the casing 40 respectively, casing 40 inside is provided with the brake subassembly 50 that is used for driving brake block 31 and moves.

Further, the moving block 51 can be pulled to move through the brake cable 54, the protruding block 52 can be moved to the extrusion rod 32, meanwhile, the second spring 53 can be compressed, the extrusion ring 32 can be extruded by the protruding block 52, the brake pad 31 can be driven to move downwards through the extrusion rod 32, meanwhile, the first spring 33 can be stretched, and the brake pad can be abutted to the surface of the roller, so that braking can be completed.

In the preferred technical solution of this embodiment, the brake assembly 50 includes a moving block 51, the moving block 51 is slidably mounted in the housing 40, a bump 52 is fixedly mounted at one side of the bottom end of the moving block 51, a second spring 53 is fixedly mounted at two sides of one end of the moving block 51, a brake cable 54 is fixedly connected to one end of the moving block 51, and one end of the brake cable 54 extends to the outside of the housing 40 and a connector 55 is fixedly mounted.

Further, the moving block 51 can be pulled to move through the brake cable 54, the protruding block 52 can be moved to the extrusion rod 32, meanwhile, the second spring 53 can be compressed, the protruding block 52 can extrude the extrusion ring 32, the brake block 31 can be driven to move downwards through the extrusion rod 32, meanwhile, the first spring 33 can be stretched, the brake block 31 can be abutted to the surface of the roller 10, when the brake cable 54 is released, the moving block 51 can be restored to the initial position under the elasticity of the second spring 53, meanwhile, the protruding block 52 can be far away from the end part of the extrusion rod 32, and when the extrusion rod 32 loses extrusion of the protruding block 52, the brake block 31 can move upwards under the elasticity of the first spring 33, and the brake block 31 can be separated from the roller 10.

In the preferred technical solution of this embodiment, the brake assembly 50 further includes a limiting plate 56 fixedly mounted on the top end inside the housing 40, a sliding groove is formed in a surface of the limiting plate 56, which is close to the moving block 51, sliding blocks adapted to the sliding groove are fixedly mounted on two sides of the moving block 51, and when the moving block 51 moves, the sliding blocks are driven to move in the sliding groove, so that the stability of the moving block 51 during movement can be improved.

In the preferred embodiment of the present utility model, the protruding block 52 has a semicircular structure, so that the smoothness of contact between the protruding block 52 and the end of the pressing rod 32 is ensured.

Working principle: when the brake cable 54 is used, the movable block 51 can be pulled to move, the protruding block 52 can be moved to the extrusion rod 32, meanwhile, the second spring 53 can be compressed, the protruding block 52 can extrude the extrusion ring 32, the brake block 31 can be driven to move downwards through the extrusion rod 32, meanwhile, the first spring 33 can be stretched, the brake block 31 can be abutted to the surface of the roller 10, when the brake cable 54 is released, the movable block 51 can be restored to the initial position under the elasticity of the second spring 53, meanwhile, the protruding block 52 can be far away from the end part of the extrusion rod 32, and when the extrusion rod 32 loses extrusion of the protruding block 52, the brake block 31 can be moved upwards under the elasticity of the first spring 33, and the brake block 31 can be separated from the roller 10.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement it without limiting the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (6)

1. The utility model provides a brake mechanism for handcart, includes mounting bracket (20) and set up in outer guard shield (30) of mounting bracket (20) inboard, the inside top of mounting bracket (20) is provided with casing (40), its characterized in that: the novel brake device is characterized in that a brake block (31) is arranged inside the outer shield (30), an extrusion rod (32) is fixedly arranged at the top end of the brake block (31), a first spring (33) is sleeved outside the extrusion rod (32), and a brake assembly (50) for driving the brake block (31) to move is arranged inside the shell (40).

2. A brake mechanism for a cart according to claim 1, wherein: the brake assembly (50) comprises a moving block (51), a bump (52) is fixedly arranged on one side of the bottom end of the moving block (51), a second spring (53) is fixedly arranged on two sides of one end of the moving block (51), a brake cable (54) is fixedly connected to one end of the moving block (51), and one end of the brake cable (54) extends to the outside of the shell (40) and is fixedly provided with a connector (55).

3. A brake mechanism for a cart according to claim 2, wherein: the brake assembly (50) further comprises a limiting plate (56) fixedly mounted at the top end inside the shell (40), a sliding groove is formed in the surface, close to one side of the moving block (51), of the limiting plate (56), and sliding blocks matched with the sliding groove are fixedly mounted on two sides of the moving block (51).

4. A brake mechanism for a cart according to claim 1, wherein: the inner side of the mounting frame (20) is rotatably provided with a roller (10) through a rotating shaft.

5. A brake mechanism for a cart according to claim 1, wherein: the brake pad (31) is of an arc-shaped structure, and the brake pad (31) is made of rubber materials.

6. A brake mechanism for a cart according to claim 2, wherein: the projection (52) is embodied as a semi-circular structure.