Trundle with brake

Abstract

The trundle with the brake comprises a trundle body, a mounting plate is connected to the upper portion of the trundle body, a brake box is connected to one side of the mounting plate through a vertical plate, a pushing block is arranged in the brake box in a limited sliding mode, a connecting groove is formed in one side of the top end of the pushing block, a connecting plate is arranged in the connecting groove, and the connecting plate is connected with the vertical plate. A mounting groove is formed in the surface of the connecting plate, a compression spring is arranged in the mounting groove, a limiting plate is arranged at the top end of the connecting plate, and the surface of the limiting plate is connected with the surface of the top end of a pushing block through a bolt. The practicability of the device is improved.

Description

Technical Field

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

[0002] A caster is an auxiliary device that is widely used in many devices and occasions that need to be moved, including swivel casters, fixed casters, and swivel casters with brakes. A swivel caster is what we call a universal wheel. However, there are certain problems with existing casters with brakes during use and continuous improvement is still needed;

[0003] For example, a caster that can be hand-braked disclosed in the utility model with the authorization publication number CN220332385U includes a caster body, a mounting plate, mounting holes, and a connecting plate. The mounting plate is connected above the caster body, a vertical plate is connected to the left side of the mounting plate, a brake box is connected below the vertical plate, and a vertical piece is respectively installed in front and behind the left side of the upper surface of the brake box. Compared with the prior art, by setting a brake box, a handbrake lever, a pushing block, a pushing plate, a connecting rod, a rotating bearing, a brake push rod, and a brake pad, the brake pad can be made to contact the caster body, and then the mutual friction force is used for braking, so that the caster body can be easily stopped manually during use. By setting a compression spring, when the handbrake lever is released, the compression spring can rebound to push the pushing block back to its original position through the pushing plate. At the same time, the pushing plate can drive the brake pad back to its original position through the brake push rod, and can also drive the handbrake lever back to its initial state.

[0004] When the handbrake lever is released, the compression spring can rebound and drive the pushing plate to move to the left at the same time. The pushing plate can drive the brake pad back to its original position through the brake push rod. However, in this device, the compression spring is sleeved and connected outside the brake push rod, which is not convenient for replacement. Once the compression spring deforms due to long-term use and its elastic force weakens, it will affect the return of the brake pad to its original position. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a caster with a brake, which can solve the technical problem that in its device, the compression spring is sleeved and connected outside the brake push rod, which is not convenient for replacement. Once the compression spring deforms due to long-term use and its elastic force weakens, it will affect the return of the brake pad to its original position.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: a caster with a brake, including a caster body, an installation plate is connected above the caster body, a brake box is connected through a vertical plate on one side of the installation plate, a pushing block is limited and slidably arranged in the brake box, a connecting groove is opened on one side of the top end of the pushing block, a connecting plate is arranged in the connecting groove, an installation groove is opened on the surface of the connecting plate, a compression spring is arranged in the installation groove, a limiting plate is arranged at the top end of the connecting plate, and the surface of the limiting plate is connected to the surface of the top end of the pushing block through a bolt.

[0007] As a preferred technical solution of the present utility model, two vertical pieces are symmetrically arranged at the top end of one side of the brake box, a connecting rod is arranged between the two vertical pieces, a handbrake rod is movably sleeved and connected on the outer side of the connecting rod, a groove is opened on the other side of the top end of the pushing block, and the bottom end of the handbrake rod movably penetrates through the groove.

[0008] As a preferred technical solution of the present utility model, a brake push rod is connected on the surface of one side of the pushing block and below the connecting groove, and one end of the brake push rod far away from the pushing block movably penetrates through the side wall of the brake box.

[0009] As a preferred technical solution of the present utility model, a brake pad is connected to one end of the brake push rod located outside the brake box.

[0010] As a preferred technical solution of the present utility model, an installation hole for cooperating with a bolt to limit and connect the installation plate is arranged at each of the four corners of the surface of the installation plate.

[0011] As a preferred technical solution of the present utility model, the caster body is limited and rotatably connected below the caster body.

[0012] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0013] Through the cooperation setting of the connecting plate and the installation groove, the limiting connection of the compression spring is realized. Through the cooperation setting of the connecting plate and the limiting plate, the limiting connection of the connecting plate and the compression spring limitedly connected in the installation groove on the surface of the connecting plate is realized. The setting of this structure can quickly and conveniently disassemble and replace the compression spring deformed due to long-term use, improving the practicability of the device. Description of the Drawings

[0014] Figure 1 It is a first perspective three-dimensional structure diagram of the present utility model;

[0015] Figure 2 It is a sectional three-dimensional structure diagram of the brake box of the present utility model;

[0016] Figure 3Schematic diagram of the partial three-dimensional structure of the present utility model;

[0017] Figure 4 Schematic diagram of the three-dimensional structure of the second perspective of the present utility model;

[0018] Wherein: 1, caster body; 2, mounting plate; 3, mounting hole; 4, vertical plate; 5, brake box; 6, vertical piece; 7, connecting rod; 8, handbrake lever; 9, pushing block; 10, groove; 11, connecting groove; 12, connecting plate; 13, mounting groove; 14, compression spring; 15, limiting plate; 16, brake push rod; 17, brake pad. Specific embodiments

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present utility model.

[0020] Embodiment

[0021] Please refer to Figures 1-4 As shown, the present utility model provides a caster with a brake. A mounting plate 2 is connected above the caster body 1, and a mounting hole 3 is provided at each of the four corners of the surface of the mounting plate 2. The mounting plate 2 and the caster body 1 provided below the mounting plate 2 can be limitedly connected by cooperating with bolts through the mounting holes 3. Then, a brake box 5 is connected and arranged on one side of the mounting plate 2 through a vertical plate 4, and a pushing block 9 is limitedly slidably arranged in the brake box 5. Then, a connecting groove 11 is opened on one side of the top end of the pushing block 9, and a connecting plate 12 is arranged in the connecting groove 11. An installation groove 13 is opened on the surface of the connecting plate 12, and a compression spring 14 is arranged in the installation groove 13. At the same time, a limiting plate 15 is arranged at the top end of the connecting plate 12, and finally, the surface of the limiting plate 15 is connected and arranged with the top surface of the pushing block 9 through bolts;

[0022] When disassembling and replacing the compression spring 14 that is deformed after long-term use in the brake box 5, first, the bolt that is screwed and connected between the limiting plate 15 and the pushing block 9 is opened. Then, the connecting plate 12 arranged below the limiting plate 15 is taken out from the connecting groove 11 opened on the surface of the pushing block 9. Then, the compression spring 14 is taken out from the installation groove 13 opened on the surface of the connecting plate 12. Then, a new compression spring 14 is replaced. One end of the new compression spring 14 is limitedly arranged in the installation groove 13. Then, the connecting plate 12 is put into the connecting groove 11, and the compression spring 14 is arranged between the connecting plate 12 and the brake box 5. Subsequently, the pushing block 9 and the limiting plate 15 are connected again through bolts, and the disassembly and replacement of the compression spring 14 can be completed;

[0023] As a further implementation manner of this embodiment, as Figures 1-4 shown, two vertical plates 6 are symmetrically arranged at the top end of one side of the brake box 5. Then, a connecting rod 7 is arranged between the two vertical plates 6. Next, a hand brake lever 8 is movably sleeved and connected outside the connecting rod 7. A groove 10 is formed at the other side of the top end of the pushing block 9. And the bottom end of the hand brake lever 8 movably passes through the groove 10. Then, a brake push rod 16 is connected and arranged on the surface of one side of the pushing block 9 and below the connecting groove 11. One end of the brake push rod 16, which is far away from the pushing block 9, movably passes through the side wall of the brake box 5. Finally, a brake pad 17 is connected and arranged at one end of the brake push rod 16 and located outside the brake box 5;

[0024] During use, the hand brake lever 8 can be pulled to the left. At the same time, the lower end of the hand brake lever 8 can push the pushing block 9 to the right. Then, the pushing block 9 pushes the brake push rod 16 to the right. The brake push rod 16 pushes the brake pad 17 to contact the caster body 1. Then, braking is performed by the frictional force between them, so that the caster body 1 is braked and stopped;

[0025] Specific working principle:

[0026] During actual use, first, the mounting plate 2 and the caster body 1 arranged below the mounting plate 2 are connected to an external device through the cooperation of the mounting holes 3 and bolts. Then, the hand brake lever 8 can be pulled to the left. At the same time, the lower end of the hand brake lever 8 can push the pushing block 9 to the right. Then, the pushing block 9 pushes the brake push rod 16 to the right. The brake push rod 16 pushes the brake pad 17 to contact the caster body 1. Then, braking is performed by the frictional force between them, so that the caster body 1 is braked and stopped. At the same time, when the pushing block 9 pushes the brake push rod 16, the compression spring 14 is compressed after being pressed. When the hand brake lever 8 is released, the compression spring 14 can rebound, and at the same time, drive the pushing block 9 to move to the left. The pushing block 9 can drive the brake pad 17 to return to its original position through the brake push rod 16, so that the brake pad 17 no longer contacts the caster body 1, and the limitation on the caster body 1 is released. When it is necessary to disassemble and replace the compression spring 14 that is deformed due to long-term use in the brake box 5, first, the bolt connecting the limiting plate 15 and the pushing block 9 is opened. Then, the connecting plate 12 arranged below the limiting plate 15 is taken out from the connecting groove 11 formed on the surface of the pushing block 9. Then, the compression spring 14 is taken out from the mounting groove 13 formed on the surface of the connecting plate 12. Then, a new compression spring 14 is replaced. One end of the new compression spring 14 is limited in the mounting groove 13. Then, the connecting plate 12 is placed in the connecting groove 11. The compression spring 14 is arranged between the connecting plate 12 and the brake box 5. Subsequently, the pushing block 9 and the limiting plate 15 are connected again through bolts, and the disassembly and replacement of the compression spring 14 can be completed. The setting of this structure can quickly and conveniently disassemble and replace the compression spring 14 that is deformed due to long-term use, and improve the practicability of the device.

[0027] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, which are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A caster with a brake, comprising a caster body (1), characterized in that: Above the caster body (1), there is a mounting plate (2) connected. On one side of the mounting plate (2), a brake box (5) is connected and arranged through a vertical plate (4). A push block (9) is limited and slidably arranged in the brake box (5). On one side of the top end of the push block (9), a connecting groove (11) is opened. A connecting plate (12) is arranged in the connecting groove (11). An installation groove (13) is opened on the surface of the connecting plate (12). A compression spring (14) is arranged in the installation groove (13). A limiting plate (15) is arranged at the top end of the connecting plate (12). The surface of the limiting plate (15) is connected and arranged with the top surface of the push block (9) through bolts.

2. The caster with a brake according to claim 1, wherein: On the top end of one side of the brake box (5), two vertical pieces (6) are symmetrically arranged. An adjusting rod (7) is arranged between the two vertical pieces (6). A handbrake lever (8) is movably sleeved and connected on the outer side of the adjusting rod (7). On the other side of the top end of the push block (9), a groove (10) is opened. The bottom end of the handbrake lever (8) movably penetrates through the groove (10).

3. The caster with a brake according to claim 1, wherein: On one side surface of the push block (9) and below the connecting groove (11), a brake push rod (16) is connected and arranged. One end of the brake push rod (16) and the end far away from the push block (9) movably penetrates through the side wall of the brake box (5).

4. The caster with a brake according to claim 3, wherein: One end of the brake push rod (16) and the end located outside the brake box (5) is connected and arranged with a brake pad (17).

5. The caster with a brake according to claim 1, wherein: At the four corners of the surface of the mounting plate (2), there is an installation hole (3) that cooperates with bolts to limit and connect the mounting plate (2).

6. The caster with brakes according to claim 1, wherein: The caster body (1) is limited and rotatably connected below the caster body (1).

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