Trundle with steering, positioning and braking mechanism

Abstract

The utility model provides a caster with a steering positioning brake mechanism, which relates to the technical field of casters and comprises a pulley and a fixing mechanism, caster frames are mounted on two sides of the pulley, the fixing mechanism is mounted on the outer sides of the caster frames, a rotating shaft is mounted above the fixing mechanism, a fixing plate is mounted above the rotating shaft, and the fixing plate is mounted above the rotating shaft. The fixing mechanism comprises a fixed platform, a spring, a movable platform, a fixed part, a push rod part and a movable part, the fixed platform is installed at the upper end of the trundle frame, and the spring is welded to the lower end of the fixed platform. According to the trundle with the steering, positioning and braking mechanism, through the arrangement of the fixing mechanism, when braking is conducted, a pedal is pressed downwards to drive a movable support and a brake rod to move downwards, meanwhile, a rotating shaft drives a movable plate to rotate, the supporting effect between a fixed platform and a movable platform is achieved, and then the brake rod is fixed; and the phenomenon of pulley abrasion is avoided, and the braking efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casters, in particular to a caster with a steering positioning braking mechanism. Background Art

[0002] A caster is a circular device, usually composed of an axle and a tire. They are designed to be connected under different types of equipment, vehicles or furniture for easy movement and steering. Casters can significantly reduce the friction of an object on the ground, making it easier to move, while providing support and stability. The use of casters can make the equipment move easily when needed, and a caster with a steering positioning braking mechanism can fix the equipment and prevent it from sliding, which is very useful in scenarios that require stability and mobility, such as industrial equipment, trolleys, large furniture, etc.

[0003] For the existing casters, when braking, when the brake pads brake the rollers, irreversible wear will be caused to the rollers, thereby affecting the moving efficiency of the rollers. When moving the casters, the situation that the casters shake and drive the goods to shake may occur, reducing the moving efficiency of the casters.

[0004] Therefore, we provide a caster with a steering positioning braking mechanism. Content of the Utility Model

[0005] The purpose of the utility model is to provide a caster with a steering positioning braking mechanism to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A caster with a steering positioning braking mechanism includes a pulley and a fixing mechanism. Both sides of the pulley are equipped with caster frames. The outside of the caster frames is equipped with a fixing mechanism. Above the fixing mechanism is installed a rotating shaft, and above the rotating shaft is installed a fixing plate.

[0007] The fixing mechanism includes a fixing platform, a spring, a movable platform, a fixing piece, a push rod piece and a movable piece. The upper end of the caster frame is equipped with a fixing platform. The lower end of the fixing platform is welded with a spring. The lower end of the spring is equipped with a movable platform. The lower end of one side of the fixing platform is equipped with a fixing piece. Inside the fixing piece is installed a push rod piece, and below the push rod piece is installed a movable piece.

[0008] Preferably, both ends of the lower part of the fixing platform are equipped with baffles, and the baffles are movably connected with one side of the movable platform.

[0009] Preferably, the movable platform includes a movable bracket, a brake rod and a pedal. The lower end of the spring is welded with a movable bracket. The lower part of the movable bracket is fixedly connected with a brake rod. One end of the outside of the movable bracket is fixedly connected with a pedal.

[0010] Preferably, the fixing member includes a fixing block, a fixing shaft and a torsion spring. One side below the fixing platform is fixedly connected with a fixing block, a fixing shaft is installed in the middle of the fixing block, and a torsion spring is installed inside the fixing block.

[0011] Preferably, the push rod member includes a suspension block, a movable rod, an operating rod and a return force disc. The upper inner side of the fixing member is fixedly connected with a suspension block, a movable rod is installed in the middle of the suspension block, an operating rod is installed at one end of the movable rod, and a return force disc is fixedly connected to the other end of the movable rod.

[0012] Preferably, a circular groove is formed in the middle of one side of the suspension block, a communication groove is formed inside the circular groove, and the communication groove penetrates through the inside of the suspension block.

[0013] Preferably, the movable member includes a movable plate and a rotating shaft. A movable plate is installed in the middle of the fixing member, and the movable plate is welded to one end of the torsion spring. A rotating shaft is installed inside the movable plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the casters with a steering positioning braking mechanism, through the setting of the fixing mechanism, when braking, by pressing down the pedal, the movable bracket and the brake rod move downward, and at the same time, the rotating shaft drives the movable plate to rotate, which plays a supporting role between the fixing platform and the movable platform, and further plays a fixing role on the brake rod, making the braking more convenient and avoiding the occurrence of pulley wear.

[0016] 2. Through the setting of the baffle, when braking, the spring contracts, which plays a role in protecting the spring, and can also prevent the outside from directly contacting the spring, playing a protective role on the spring and improving the braking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic external structure diagram of the caster with a steering positioning braking mechanism of the present utility model;

[0018] Figure 2 is a schematic structure diagram of the fixing mechanism of the present utility model;

[0019] Figure 3 is a schematic cross-sectional structure diagram of the caster with a steering positioning braking mechanism of the present utility model;

[0020] Figure 4 is a schematic braking state structure diagram of the caster with a steering positioning braking mechanism of the present utility model;

[0021] Figure 5Schematic diagram of the un-braked state structure of the caster wheel with a steering positioning brake mechanism of the present utility model.

[0022] Reference numerals in the figure: 1, pulley; 2, caster wheel frame; 3, fixing mechanism; 31, fixing platform; 311, baffle; 32, spring; 33, movable platform; 331, movable bracket; 332, brake rod; 333, pedal; 34, fixing member; 341, fixing block; 342, fixing shaft; 343, torsion spring; 35, push rod member; 351, suspension block; 3511, circular groove; 3512, connecting groove; 352, movable rod; 353, operating rod; 354, return force disc; 36, movable member; 361, movable plate; 362, rotating shaft; 4, rotating shaft; 5, fixing plate. Detailed implementation manners

[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution: a caster wheel with a steering positioning brake mechanism, including a pulley 1 and a fixing mechanism 3. Both sides of the pulley 1 are provided with caster wheel frames 2. The outside of the caster wheel frame 2 is provided with a fixing mechanism 3. Above the fixing mechanism 3 is installed a rotating shaft 4, and above the rotating shaft 4 is installed a fixing plate 5;

[0024] The fixing mechanism 3 includes a fixing platform 31, a spring 32, a movable platform 33, a fixing member 34, a push rod member 35 and a movable member 36. The upper end of the caster wheel frame 2 is provided with a fixing platform 31. The lower end of the fixing platform 31 is welded with a spring 32. The lower end of the spring 32 is provided with a movable platform 33. One side lower end of the fixing platform 31 is provided with a fixing member 34. The inside of the fixing member 34 is provided with a push rod member 35. Below the push rod member 35 is provided with a movable member 36.

[0025] As a further implementation of the above technical solution: as Figure 1 shown, both ends of the lower part of the fixing platform 31 are provided with baffles 311, and the baffles 311 are movably connected with one side of the movable platform 33, which can fix the moving range of the movable platform 33 and prevent displacement. One side baffle 311 can effectively block the spring 32 to prevent the outside from directly contacting the spring 32, thus playing a role in protecting the operation of the spring 32.

[0026] As a further implementation of the above technical solution: as Figure 2 and Figure 3 shown, the movable platform 33 includes a movable bracket 331, a brake rod 332 and a pedal 333. The lower end of the spring 32 is welded with a movable bracket 331. The lower part of the movable bracket 331 is fixedly connected with a brake rod 332. One end of the outside of the movable bracket 331 is fixedly connected with a pedal 333. The brake rod 332 can brake the caster wheel, and the pedal 333 can control the descent of the movable bracket 331 and drive the brake rod 332 to descend at the same time, so that the caster wheel can stop moving.

[0027] As a further implementation of the above technical solution: As Figure 3 shown, the fixing member 34 includes a fixing block 341, a fixing shaft 342 and a torsion spring 343. A fixing block 341 is fixedly connected to one side below the fixing platform 31. A fixing shaft 342 is installed in the middle of the fixing block 341. A torsion spring 343 is installed inside the fixing block 341. The fixing shaft 342 can fix the movable member 36 to fix it within the working range. The torsion spring 343 can twist the movable member 36 back to its original position, enabling the movable member 36 to fix the brake lever 332, thereby controlling the brake of the pulley 1 by the brake lever 332.

[0028] As a further implementation of the above technical solution: As Figure 4 shown in Figure 5 connection with the figure, the push rod member 35 includes a suspension block 351, a movable rod 352, an operating rod 353 and a return force disc 354. A suspension block 351 is fixedly connected to the upper inner side of the fixing member 34. A movable rod 352 is installed in the middle of the suspension block 351. An operating rod 353 is installed at one end of the movable rod 352. A return force disc 354 is fixedly connected to the other end of the movable rod 352. The return force disc 354 can push the movable member 36 to disengage the brake lever 332 from the braking position, thereby enabling the pulley 1 to move.

[0029] As a further implementation of the above technical solution: As Figure 4 shown in Figure 5 connection with the figure, a circular groove 3511 is formed in the middle of one side of the suspension block 351. A communication groove 3512 is formed inside the suspension block 351, and the communication groove 3512 penetrates through the inside of the suspension block 351. The circular groove 3511 can accommodate the return force disc 354 when it returns. The communication groove 3512 can enable the movable rod 352 to push, thereby controlling the brake lever 332 to rise.

[0030] As a further implementation of the above technical solution: As Figure 5 shown in connection with the figure, the movable member 36 includes a movable plate 361 and a rotating shaft 362. A movable plate 361 is installed in the middle of the fixing member 34, and the movable plate 361 is welded to one end of the torsion spring 343. A rotating shaft 362 is installed inside the movable plate 361. By rotating the movable plate 361 through the rotating shaft 362, the movable platform 33 and other connecting components can be fixed. The torsion spring 343 can twist the movable plate 361 back to its fixed position to fix the pulley 1.

[0031] Working principle: First, move a caster with a steering positioning brake mechanism to the working position. In the first step, when braking, the pedal 333 can be depressed to drive the movable bracket 331 and the brake rod 332 to move downward. At the same time, the torsion spring 343 twists back to drive the movable plate 361 to a specified position, which can support between the fixed platform 31 and the movable platform 33, thereby fixing the brake rod 332, and can also prevent the spring 32 from rebounding, which can fix the movable platform 33, fix the brake rod 332 to the ground, and play a braking role. In the second step, after braking, the operating rod 353 is pushed to drive the movable rod 352 and the return force disc 354 to push forward, so that the return force disc 354 pushes the movable plate 361 away from the fixed position. At the same time, the spring 32 rebounds to drive the movable platform 33 to rise, thereby retracting the brake rod 332 to end the braking, so that the pulley 1 can move. In this way, the use process of a caster with a steering positioning brake mechanism is completed.

Claims

1. A caster with a steering positioning brake mechanism, comprising a pulley (1) and a fixing mechanism (3), characterized in that: Caster frames (2) are installed on both sides of the pulley (1), a fixing mechanism (3) is installed on the outer side of the caster frame (2), a rotating shaft (4) is installed above the fixing mechanism (3), and a fixing plate (5) is installed above the rotating shaft (4); The fixing mechanism (3) comprises a fixed platform (31), a spring (32), a movable platform (33), a fixing part (34), a push rod part (35) and a movable part (36); the upper end of the caster frame (2) is provided with a fixed platform (31); the lower end of the fixed platform (31) is welded with a spring (32); the lower end of the spring (32) is provided with a movable platform (33); the lower end of one side of the fixed platform (31) is provided with a fixing part (34); the inner side of the fixing part (34) is provided with a push rod part (35); and the lower side of the push rod part (35) is provided with a movable part (36).

2. A caster with a steering positioning brake mechanism according to claim 1, characterized in that: Baffles (311) are installed at both ends below the fixed platform (31), and the baffles (311) are movably connected to one side of the movable platform (33).

3. A caster with a steering positioning brake mechanism according to claim 1, characterized in that: The movable platform (33) comprises a movable bracket (331), a brake rod (332) and a pedal (333); the movable bracket (331) is welded to the lower end of the spring (32); the brake rod (332) is fixedly connected to the lower part of the movable bracket (331); and the pedal (333) is fixedly connected to one end of the outer side of the movable bracket (331).

4. A caster with a steering positioning brake mechanism according to claim 1, characterized in that: The fixing member (34) comprises a fixing block (341), a fixing shaft (342) and a torsion spring (343); the fixing block (341) is fixedly connected to one side below the fixing platform (31); the fixing shaft (342) is installed in the middle of the fixing block (341); and the torsion spring (343) is installed on the inner side of the fixing block (341).

5. The caster with a steering positioning brake mechanism according to claim 1, characterized in that: The push rod member (35) comprises a suspension block (351), a movable rod (352), an operating rod (353) and a return plate (354); the suspension block (351) is fixedly connected to the upper inner side of the fixing member (34); the movable rod (352) is installed in the middle of the suspension block (351); the operating rod (353) is installed at one end of the movable rod (352); and the return plate (354) is fixedly connected to the other end of the movable rod (352).

6. A caster with a steering positioning brake mechanism according to claim 5, characterized in that: A circular groove (3511) is provided in the middle of one side of the suspension block (351), a connecting groove (3512) is provided inside the circular groove (3511), and the connecting groove (3512) runs through the interior of the suspension block (351).

7. The caster with a steering positioning brake mechanism according to claim 1, characterized in that: The movable member (36) comprises a movable plate (361) and a rotating shaft (362); the movable plate (361) is installed in the middle of the fixed member (34); the movable plate (361) is welded to one end of the torsion spring (343); and the rotating shaft (362) is installed inside the movable plate (361).

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