Wire brake belt brake trundle

Abstract

The utility model relates to the technical field of trundles, in particular to a wire brake belt brake trundle. The rolling wheel is rotatably arranged at the bottom of the support, the driving plate is rotatably arranged at the top of the support, the spring piece is rotatably arranged in the support, the sheep eye bolt is arranged on the driving plate in a sliding and clamping mode and used for driving the spring piece to press the rolling wheel so as to achieve braking, and the reset spring is arranged on the sheep eye bolt in a sleeving mode and used for driving the spring piece to reset. The brake rope and the sheep eye bolt are used for driving the spring piece to brake, so that an operator can control the brake at the position far away from the caster, and the problem that the caster swings to a specific angle and cannot brake can be solved; meanwhile, the problem that the brake pedal is easy to damage is solved, and the durability of the trundle is improved.

Description

Technical Field

[0001] This utility model relates to the field of caster technology, and more specifically, to a caster with a cable brake. Background Technology

[0002] Commercially available casters with brakes (such as the brake casters disclosed in prior art CN218702530U and CN117644743B) are generally equipped with spring plates and brake pedals. When the operator presses the brake pedal, the brake pedal will cause the inner spring plate to deform. The deformed spring plate can prevent the wheel from rotating and prevent the bracket from rotating around the dial. Such casters with brakes can meet the needs of fixing the vehicle in place, but they also have the following shortcomings during use: (1) When the caster swings to a certain angle, the brake pedal will rotate to the bottom of the vehicle and be blocked by the vehicle, making it impossible for the operator to press the brake pedal to brake. (2) The brake pedal is easily damaged by impact. Utility Model Content

[0003] The purpose of this invention is to provide a caster with a linear brake to solve the technical problem that existing casters with brakes cannot brake when they swing to a specific angle.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A cable brake caster includes a bracket, a roller rotatably mounted at the bottom of the bracket, a dial rotatably mounted at the top of the bracket, a spring plate rotatably mounted inside the bracket, an eye bolt slidably engaged with the dial and used to drive the spring plate to press against the roller to achieve braking, and a return spring sleeved on the eye bolt and used to drive the spring plate to return to its original position; one end of the return spring abuts against the dial and the other end abuts against the spring plate; the eye bolt's eyelet end is used for fixed connection with the brake rope, and its threaded end passes through the dial, the return spring, and the spring plate in sequence before engaging the spring plate.

[0006] Optionally, the middle end of the spring plate is rotatably connected to the bracket, its front end moves to press the roller to achieve braking, and its rear end moves to engage with the dial to achieve steering lock.

[0007] Optionally, the bottom of the dial is provided with several steering lock slots, and the rear end of the spring plate is provided with a steering lock block that is adapted to the steering lock slots.

[0008] Optionally, the front end of the spring plate is located between the tangential surface of the roller and its axial surface, both of which are perpendicular to the ground.

[0009] Optionally, the front end of the spring plate is provided with a brake disc for moving the pressure roller and an auxiliary reset disc for assisting the brake disc to reset.

[0010] In summary, this utility model has the following beneficial effects: under the action of the brake rope, the eye bolt drives the spring plate to brake, so that the operator can operate the brake from a position away from the caster, which can avoid the problem of the caster swinging to a certain angle and being unable to brake. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is the front view of this utility model;

[0013] Figure 3 This is a side view of the present invention;

[0014] Figure 4 This is a bottom view of the present invention.

[0015] Figure 5 This is a cross-sectional view of the present invention. Detailed Implementation

[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] This utility model provides a caster with a cable brake and a brake, such as Figure 1-5 As shown, the system includes a bracket 1, a roller 2 rotatably mounted at the bottom of the bracket 1, a dial 3 rotatably mounted at the top of the bracket 1, a spring plate 4 rotatably mounted inside the bracket 1, an eye bolt 5 slidably engaged on the dial 3 and used to drive the spring plate 4 to press the roller 2 to achieve braking, and a return spring 6 sleeved on the eye bolt 5 and used to drive the spring plate 4 to return to its original position. One end of the return spring 6 abuts against the dial 3, and the other end abuts against the spring plate 4. The eye bolt 5 has its eyelet end used to fix it to the brake rope 7, and its threaded end passes through the dial 3, the return spring 6, and the spring plate 4 in sequence before engaging the spring plate 4.

[0019] Specifically, the cross-section of the bracket 1 is inverted U-shaped. A roller 2 is conventionally installed at its lower left end, and a dial 3 is conventionally installed at its upper right end. The structure of the dial 3 is a conventional structure in the field of brake casters (refer to the structure of the steering wheel in patent CN218702530U). From top to bottom, it generally includes a support plate for connecting with the vehicle, an upper dial, an upper ball bearing, an upper pad, a lower ball bearing, and a lower dial. The upper and lower dials are connected and fixed by fasteners. The lower dial of the dial 3 has a circular array of steering lock grooves 31. A brake spring plate 4 is hinged to the inner side of the middle of the bracket 1 and above the roller 2 by a connector such as a pin. The spring plate 4 is integrally formed. At least one steering lock block 41 is formed at its rear end (right end), and a brake disc 42 for moving and pressing the roller 2 and an auxiliary reset disc 43 for assisting the reset of the brake disc 42 are formed at its front end (left end). The rotation center of the spring plate 4 is located slightly to the left of its center, with its left end serving as the brake. The eye bolt 5 passes through the fastener in the dial 3 and engages with the right end of the spring plate 4. The threaded end of the eye bolt 5 is conventionally equipped with a locking block 51 for engaging the spring plate 4. The upper end of the return spring 6 presses against the fastener in the dial 3, while its lower end pushes the spring plate 4 against the locking block 51.

[0020] This invention employs a cable brake as the braking method. The threaded end of the eye bolt 5 passes through the dial 3 and contacts the rear end of the spring plate 4. The eyelet end of the eye bolt 5 is connected to the brake cable 7. The middle part of the spring plate 4 is mounted on the bracket 1. The spring plate 4 can rotate around the mounting point. When the rear end of the spring plate 4 rises, it drives the front end to fall. When the brake cable 7 is pulled upward, the eye bolt 5 and the rear end of the spring plate 4 rise together. The steering lock block 41 on the rear end of the spring plate 4 will engage with the steering lock groove 31 in the dial 3, thereby fixing the swing angle of the bracket 1. At the same time, the front end of the spring plate 4 falls and presses against the roller 2, thereby generating friction to resist the rotation of the roller 2. When the brake cable 7 is released, the return spring 6 drives the eye bolt 5 and the spring plate 4 to return to their original positions, releasing the brake.

[0021] Furthermore, the middle end of the spring plate 4 is rotatably connected to the bracket 1, its front end moves to press the roller 2 to achieve braking, and its rear end moves to engage with the dial 3 to achieve steering lock.

[0022] like Figure 5 As shown, the brake disc 42 located at the left end of the spring plate 4 presses against the roller 2 to achieve the braking function, and the steering lock block 41 located at the right end of the spring plate 4 is embedded in the steering lock groove 31 in the dial 3 to achieve steering locking, so that the bracket 1 can no longer rotate around the dial 3.

[0023] Furthermore, the front end of the spring plate 4 is located between the tangent surface 8 of the roller 2 and its axial surface 9, both of which are perpendicular to the ground.

[0024] Another innovative feature of this utility model is that the front end of the spring sheet 4 will not extend beyond the bracket 1, specifically as follows: Figure 5 As shown, the brake disc 42 and the auxiliary reset disc 43 are located to the right of the cross-section 8 at the left end of the roller 2 and to the left of the axle plane 9. Here, the cross-section 8 refers to the cross-section on the roller 2 that is perpendicular to the ground. Since the brake disc 42 and the auxiliary reset disc 43 do not extend beyond the outer edge of the roller 2, the spring plate 4 is protected by the roller 2, preventing it from being scratched or damaged by external objects, thereby improving the durability of the caster.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A line brake band brake caster wheel characterized by, The brake comprises a support, a roller rotatably arranged at the bottom of the support, a dial rotatably arranged at the top of the support, a spring plate rotatably arranged in the support, a knurled bolt slidingly and clippingly arranged on the dial and used for driving the spring plate to press the roller to realize braking, and a reset spring sleeved on the knurled bolt and used for driving the spring plate to reset.

2. The line brake band brake caster wheel of claim 1, wherein, The middle end of the spring plate is rotatably connected with the support, the front end of the spring plate is used for moving and pressing the roller to realize braking, and the rear end of the spring plate is used for clippingly moving the dial to realize steering locking.

3. The line brake band brake caster wheel of claim 2, wherein, The bottom of the dial is provided with a plurality of steering locking grooves, and the rear end of the spring plate is provided with a steering locking block matched with the steering locking grooves.

4. The wire brake caster wheel of claim 1, wherein, The front end of the spring plate is located between the cutting surface of the roller and the axial surface of the roller, and the cutting surface and the axial surface are both perpendicular to the ground.

5. The wire brake caster wheel of claim 1, wherein, The front end of the spring plate is provided with a brake segment used for moving and pressing the roller and an auxiliary reset segment used for assisting the reset of the brake segment.

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