Brake structure of trundle seat

Abstract

The utility model discloses a trundle seat brake structure, and relates to the technical field of trundle manufacturing, the trundle seat brake structure comprises a trundle seat and a brake part in sliding fit with the trundle seat, the trundle seat is coaxially provided with a trundle and a brake pedal through bolts, the brake part is of an L-shaped structure formed by a sliding plate and a brake pad, and a limiting closing opening is formed in the break angle of the brake pad. A square through hole for the brake pad to be inserted in an inclined mode is formed in the trundle base, and the limiting closing-in opening is vertically connected to the square through hole in a sliding mode after the brake pad is inserted in the square through hole. The brake part has the technical advantages that the square through hole is formed in the trundle seat, the sliding plate and the brake which are integrated in an L shape are machined only through one-time bending, assembly on the trundle seat can be achieved, and the overall structure of the brake part is optimized on the premise that the use stability is not affected; by limiting the size of the square through hole, the brake piece can only be assembled in the square through hole in an inclined mode, the brake piece can be stably matched in the square through hole in a sliding mode after being installed, and vertical limiting and lateral limiting can be achieved through the single square through hole.

Description

Technical Field

[0001] This application relates to the technical field of caster manufacturing, and particularly to a brake structure for a caster seat. Background Art

[0002] Casters, as a crucial component connecting the ground and mobile devices, have a wide range of applications, covering multiple fields such as agriculture, construction, and transportation. In the agricultural field, casters are installed on various agricultural implements, such as sprayers, harvesters, etc., enabling these devices to move easily in the fields, greatly improving agricultural production efficiency. In the construction field, casters are widely used in equipment such as handcarts, scaffolds, etc., helping workers easily carry construction materials and reducing physical burden. In the transportation field, casters are even more indispensable. They are installed on transportation tools such as trucks, handcarts, etc., enabling goods to be transferred conveniently and quickly. With the rapid progress of technology and the increasing diversification of people's needs, the design and application of casters have also shown a trend of diversification. Modern casters not only have significant improvements in load-bearing capacity and wear resistance, but also have many innovations in terms of materials, structures, functions, etc. In terms of materials, traditional materials such as rubber and nylon are still widely used due to their good elasticity and wear resistance. However, to meet the needs of special environments, there are various caster products with special properties on the market. For example, in environments that need to withstand high temperatures, high-temperature-resistant casters have emerged. They are made of special high-temperature-resistant materials and can maintain stable performance at high temperatures. In harsh environments such as oil stains and corrosion, oil-resistant, tear-resistant, and corrosion-resistant casters have become the first choice. They can effectively resist the erosion of these harsh environments and keep the casters running normally.

[0003] In the existing caster designs, although many products have been equipped with brake structures to meet the requirements of stability and safety in different application scenarios, these brake structures are often too complex in function. In order to ensure effective limiting functions in both the sliding direction and the lateral direction of the casters, designers often need to perform multiple precision bending processes on the caster seat and the brake parts to form corresponding groove structures. This complex design not only increases the process difficulty in the manufacturing process, but also significantly increases the production cost. Therefore, how to simplify the design of the brake structure while maintaining its stability and functionality has become an important direction in the current development of caster technology. Summary of the Invention

[0004] This device provides a brake structure for a caster seat, and the specific implementation is as follows:

[0005] A brake structure for a caster seat, comprising:

[0006] A caster seat and a brake member that slides with the caster seat, a caster and a brake pedal are coaxially mounted on the caster seat through bolts, the brake pedal slides through the waist-shaped through hole on the brake member through the bolts, and the distance between the brake member and the caster is controlled by changing the posture of the brake pedal, thereby achieving braking;

[0007] The brake component is composed of an L-shaped structure consisting of a sliding plate and a brake pad, and a limit opening is provided at the corner of the brake pad. A square through hole is provided on the caster seat for the brake pad to be obliquely inserted, and the limit opening is vertically slidably connected to the square through hole after insertion. The vertical limit of the brake component is achieved through the sliding connection, and the lateral limit of the brake component is achieved through the limit opening.

[0008] Based on the above technical solution, by opening a square through hole on the caster seat, the sliding plate and the brake pad can be integrated into an L-shaped structure by a single bending process, so that they can perfectly fit the square through hole on the caster seat, thereby achieving stable vertical limitation of the caster and effective horizontal lateral constraint; not only does it simplify the complex structure of traditional brake parts and reduce production costs, but also significantly improves its installation convenience and ease of maintenance while ensuring the overall stability and reliability of the caster assembly.

[0009] Preferably, the diagonal spacing between the square through holes is greater than the width of the brake member.

[0010] Preferably, the width of the square through hole is smaller than the width of the brake member.

[0011] Based on the above technical solution, by controlling the size specifications of the square through hole, the brake component can only be assembled into the square through hole at a specific oblique angle; once the installation is completed, the brake component can slide stably and smoothly in the square through hole without the need for additional limiting structure, so that the single square through hole has both vertical and lateral limiting functions, which not only simplifies the assembly process, but also ensures the stability and reliability of the brake component during use.

[0012] Preferably, the waist-shaped through holes are arranged along the length direction of the sliding plate, the bolts are slidably connected to the waist-shaped through holes, and the sliding plate is clamped between the caster seat and the brake pedal.

[0013] Preferably, the sliding plate is provided with a first positioning protrusion and a second positioning protrusion above and below the waist-shaped through hole, and the two are arranged in a staggered manner along the width direction.

[0014] Preferably, a stepped groove acting on the first positioning protrusion is provided at the bottom of the brake pedal, and the top of the brake pedal slides against the second positioning protrusion.

[0015] Based on the above technical solution, by the stepped groove acting on the second positioning protrusion actively, the reciprocating switching of the sliding plate between the high position end and the low position end can be realized, and then the braking effect of the brake pad on the caster is achieved. When the sliding plate is at the high position end, the brake pad does not contact the caster or has a small contact degree, so the device can move freely; while when the sliding plate switches to the low position end, the brake pad will act tightly on the caster, generating sufficient frictional force to prevent the device from moving, thus realizing the braking effect.

[0016] Preferably, an assembly hole is provided at the top of the caster seat, and the inner side of its bottom is used to install the brake pad and the caster, and the surface of the brake pad facing the caster is set as the friction surface.

[0017] Preferably, the friction surface of the brake pad is set as an arc surface structure that conforms to the contour of the caster.

[0018] Based on the above technical solution, through optimization, the contour of the caster is adapted to the shape of the brake pad, greatly improving the interaction efficiency between the two, ensuring that the contact surfaces between the caster and the brake pad are closer and have a high degree of fit, thus effectively increasing the actual contact area during braking; the increased braking contact area not only means that greater frictional force can be generated during braking, but also makes the braking process smoother and more controllable. Even under heavy load or rapid movement, the caster can stop quickly and stably, greatly enhancing the safety and reliability of use.

[0019] In summary, the present application includes the following beneficial technical effects:

[0020] 1. By opening a square through-hole on the caster seat, the present utility model can realize the assembly on the caster seat by only single-time bending to process the sliding plate and the brake which are integrally in an L shape, optimizing the overall structure of the brake part without affecting the use stability.

[0021] 2. By restricting the size of the square through-hole, the present utility model enables the brake part to be obliquely assembled in the square through-hole and can stably slide and fit in the square through-hole after installation. The same single square through-hole can realize the two functions of vertical limit and lateral limit.

[0022] 3. The structure of the present utility model is simple. By adapting the contours of the caster and the brake pad, the contact surfaces between the two are more fitting, and thus the braking contact area is larger and the braking effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the structure of the caster seat in the prior art;

[0024] Figure 2 is an exploded schematic diagram of the caster seat in the prior art;

[0025] Figure 3 is a schematic structural view of the present utility model;

[0026] Figure 4 is an exploded structural schematic view of the present utility model Figure 1 ;

[0027] Figure 5 is a sectional view of the structure of the present utility model;

[0028] Figure 6 is an exploded structural schematic view of the present utility model Figure 2 ;

[0029] Figure 7 is a schematic structural view when the brake pedal of the present utility model is installed;

[0030] Figure 8 is a schematic structural view after the brake pedal of the present utility model is installed.

[0031] Explanation of reference numerals:

[0032] 1. Caster seat, 2. Caster, 3. Brake pedal, 4. Bolt, 5. Brake part, 11. Limit projection, 12. Square through hole,

[0033] 301. Step groove, 302. Foot pedal, 501. Waist-shaped through hole, 502. Sliding plate, 503. Brake pad, 504. U-shaped through hole, 505. U-shaped connecting plate, 506. First positioning projection, 507. Second positioning projection, 508. Limit necking. Detailed implementation manners

[0034] The following describes the specific implementation manners of the present utility model in conjunction with the drawings and embodiments:

[0035] It should be noted that the structures, ratios, sizes, etc. schematically shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope covered by the technical content disclosed in the present utility model without affecting the efficacy and purpose that the present utility model can achieve.

[0036] At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present utility model without substantial change in the technical content.

[0037] The following further elaborates on this application in conjunction with the attached Figure 1-8 for a more detailed description.

[0038] The embodiment of the present application discloses a caster seat brake structure.

[0039] Comparative Example 1

[0040] Reference Figures 1 to 2 The present embodiment discloses a brake structure of a caster seat in the prior art, including a caster seat 1 and a brake component 5 that slides with the caster seat 1, a caster 2 and a brake pedal 3 are coaxially mounted on the caster seat 1 through a bolt 4, the brake pedal 3 slides with a waist-shaped through hole 501 on the brake component 5 through the bolt 4, in the present structure, a limiting protrusion 11 is vertically provided on the side of the caster seat 1, the brake component 5 includes a brake pad 503 and a sliding plate 502, and the two are connected by a U-shaped connecting plate 505, the sliding plate 502 is provided with a U-shaped through hole 504 that is slidably connected to the limiting protrusion 11, and the U-shaped connecting plate 505 realizes lateral limitation of the brake component 5 by crossing the side of the caster seat 1.

[0041] Example 1

[0042] Reference Figures 3 to 8 The present embodiment discloses a brake structure of a caster seat, comprising a caster seat 1 and a brake member 5 that slides with the caster seat 1, a caster 2 and a brake pedal 3 are coaxially mounted on the caster seat 1 by means of a bolt 4, the brake pedal 3 slides with a waist-shaped through hole 501 on the brake member 5 by means of the bolt 4, the distance between the brake member 5 and the caster 2 is controlled by changing the posture of the brake pedal 3, and thus braking is achieved, in the present structure, the brake member 5 is composed of an L-shaped structure consisting of a sliding plate 502 and a brake pad 503, and a limiting opening 508 is provided at the corner of the brake pad 503, a square through hole 12 is provided on the caster seat 1 for oblique insertion of the brake pad 503, and the limiting opening 508 after insertion is vertically slidably connected to the square through hole 12, the vertical limiting of the brake member 5 is achieved by the sliding connection, and the lateral limiting of the brake member 5 is achieved by the limiting opening 508; the diagonal spacing of the square through hole 12 is greater than the width dimension of the brake member 5, and the width of the square through hole 12 is less than the width dimension of the brake member 5.

[0043] Example 2

[0044] Reference Figures 3 to 8 Based on the above embodiments, the present embodiment further discloses a caster seat brake structure, in which a waist-shaped through hole 501 is arranged along the length direction of the sliding plate 502, the bolt 4 is slidably connected to the waist-shaped through hole 501, and the sliding plate 502 is clamped between the caster seat 1 and the brake pedal 3, and the sliding plate 502 is provided with a first positioning protrusion 506 and a second positioning protrusion 507 above and below the waist-shaped through hole 501, and the two are arranged in an offset shape along the width direction. In the present structure, a stepped groove 301 is provided at the bottom of the brake pedal 3 for acting on the first positioning protrusion 506, and the top of the brake pedal 3 slides and abuts against the second positioning protrusion 507.

[0045] The specific implementation process is as follows: When it is necessary to brake the caster 2, step on the brake pedal 3, and the bolt 4 acts downward on the kidney-shaped through hole 501 on the sliding plate 502; the sliding plate 502 and the brake pad 503 fall vertically downward, and then the brake pad 503 fits against the caster 2 to brake it;

[0046] When unlocking, only need to press the brake pedal 3 in the reverse direction, and the bolt 4 acts upward on the kidney-shaped through hole 501 on the sliding plate 502; the sliding plate 502 and the brake pad 503 rise vertically, and then the brake pad 503 moves away from the caster 2 to make it walk normally.

[0047] Embodiment 3

[0048] Refer to Figures 3 to 8 , based on the above embodiment, this embodiment also discloses a caster seat brake structure. The top of the caster seat 1 is provided with an assembly hole, and the inner side of its bottom is used to install the brake pad 503 and the caster 2. The surface of the brake pad 503 facing the caster 2 is set as a friction surface. In this structure, the friction surface of the brake pad 503 is set as an arc surface structure that conforms to the contour of the caster 2.

[0049] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to a specific implementation manner, and the scope of the present invention is defined by the appended claims.

Claims

1. A caster seat braking structure, characterized in that, Including: A caster seat (1) and a brake member (5) that slidably cooperates with the caster seat (1). A caster (2) and a brake pedal (3) are coaxially installed on the caster seat (1) through bolts (4). The brake pedal (3) slidably cooperates through the bolts (4) in an oblong through-hole (501) on the brake member (5). By changing the attitude of the brake pedal (3), the distance between the brake member (5) and the caster (2) is controlled, thereby achieving braking. The brake member (5) is composed of a sliding plate (502) and a brake pad (503) to form an L-shaped structure. A limiting necking (508) is provided at the folding angle of the brake pad (503). A square through-hole (12) for the oblique insertion of the brake pad (503) is provided on the caster seat (1). After insertion, the limiting necking (508) is vertically slidably connected to the square through-hole (12). The vertical limit of the brake member (5) is achieved through the sliding connection, and the lateral limit of the brake member (5) is achieved through the limiting necking (508).

2. The caster seat brake structure according to claim 1, characterized in that, The diagonal distance of the square through-hole (12) is greater than the width dimension of the brake member (5).

3. The caster seat braking structure according to claim 1, characterized in that, The width of the square through-hole (12) is smaller than the width dimension of the brake member (5).

4. The caster seat braking structure according to claim 1, characterized in that, The oblong through-hole (501) is arranged along the length direction of the sliding plate (502). The bolt (4) is slidably connected in the oblong through-hole (501), and the sliding plate (502) is clamped between the caster seat (1) and the brake pedal (3).

5. The caster seat brake structure according to claim 4, characterized in that, First positioning protrusions (506) and second positioning protrusions (507) are provided above and below the oblong through-hole (501) on the sliding plate (502), and the two are arranged in a staggered manner along the width direction.

6. The caster seat brake structure according to claim 5, characterized in that A stepped groove (301) acting on the first positioning protrusion (506) is provided at the bottom of the brake pedal (3), and the top of the brake pedal (3) slidably abuts against the second positioning protrusion (507).

7. The caster seat brake structure according to claim 1, wherein An assembly hole is provided at the top of the caster seat (1). The inner side of its bottom is used to install the brake pad (503) and the caster (2), and the surface of the brake pad (503) facing the caster (2) is set as a friction surface.

8. The caster base brake structure according to claim 7, characterized in that, The friction surface of the brake pad (503) is set as an arc surface structure that conforms to the contour of the caster (2).

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