Bilateral brake trundle

Abstract

The utility model belongs to the technical field of trundle braking, and particularly relates to a bilateral braking trundle. Comprising a trundle support, a trundle rotationally arranged on the trundle support and brake handles rotationally connected to the two sides of the trundle support through bolts, limiting grooves are formed in the two sides of the inner wall of each brake handle respectively, and limiting protrusions matched with the limiting grooves are arranged on the two sides of the outer wall of the trundle support respectively. The brake handle rotates relative to the trundle support so that the limiting groove can be separated from the limiting protrusion, and then the inner wall of the trundle support is driven to extrude the trundle inwards. By the adoption of the double-side brake structure, the brake pads on the two sides are in contact friction with the trundles at the same time, and therefore the brake force is remarkably improved. In addition, due to uniform stress on the two sides, the problem that a single-side brake pad is abraded too fast is effectively solved, the service life of the brake pad is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of caster brake technology, specifically relating to a double-sided brake caster. Background Technology

[0002] Traditional caster brake systems typically employ a single-sided braking design, meaning the braking mechanism is only located on one side of the caster. While this design is structurally simple, in practical use, the fact that only one brake pad is in contact with the wheel during single-sided braking leads to severe wear on that side's brake pad, shortening its lifespan and requiring frequent replacement, thus increasing maintenance costs. Furthermore, single-sided braking is insufficient for applications with high braking performance requirements. Utility Model Content

[0003] To address the issues of insufficient braking force and short service life in existing single-sided brake casters, this application provides a double-sided brake caster.

[0004] This application is achieved through the following technical solution:

[0005] A double-sided brake caster includes a caster bracket, a caster rotatably mounted on the caster bracket, and brake handles rotatably connected to both sides of the caster bracket by bolts. The inner walls of the brake handles are respectively provided with limiting grooves on both sides, and the outer walls of the caster bracket are respectively provided with limiting protrusions that cooperate with the limiting grooves. The brake handles rotate relative to the caster bracket to disengage the limiting grooves from the limiting protrusions, thereby causing the inner walls of the caster bracket to press the caster inward.

[0006] The double-sided brake caster described above also includes a limiting mechanism for limiting the rotation angle of the brake handle relative to the caster bracket.

[0007] As described above, a double-sided brake caster includes a limiting mechanism comprising a limiting clip disposed on the brake handle and extending toward the caster bracket, and a limiting slot disposed on the caster bracket and cooperating with the limiting clip.

[0008] The double-sided brake caster described above further includes a bearing hole passing through the brake handle, the caster bracket, and the caster, with fasteners passing through the bearing hole to connect the brake handle, the caster bracket, and the caster.

[0009] As described above, in a double-sided brake caster, the limiting groove is semi-pill-shaped, and the edge of the limiting groove has an arc-shaped transition.

[0010] As described above, in a double-sided brake caster, the limiting groove is recessed outward to form connecting protrusions on both sides of the outer wall of the brake handle, and the top of the connecting protrusion is provided with an abutment platform for fasteners to abut.

[0011] As described above, in a double-sided brake caster, the brake handle is shaped like an inverted "U" and the top of the brake handle has a downwardly extending baffle.

[0012] As described above, in a double-sided brake caster, the diameter of the bearing hole is L, the shortest inner diameter of the limiting groove is S, and the shortest inner diameter of the limiting protrusion is D, wherein S≥L>D.

[0013] As described above, in a double-sided brake caster, the limiting protrusion is elliptical in shape.

[0014] Compared with the prior art, this application has the following advantages:

[0015] This application discloses a double-sided brake caster. By employing a double-sided braking structure, the brake handle is connected to both sides of the caster bracket. Limiting grooves on both sides of the inner wall of the brake handle engage with limiting protrusions on the outer wall of the caster bracket, achieving simultaneous braking on both sides. When the brake handle is rotated, the limiting grooves disengage from the limiting protrusions, causing the inner wall of the caster bracket to press inward against the caster, ensuring that both brake pads simultaneously contact and rub against the caster, thus significantly improving braking force. Furthermore, the even force distribution on both sides effectively avoids the problem of excessively rapid wear of brake pads on one side, extending the service life of the brake pads and reducing maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional perspective view of the lead screw type caster in the embodiment of this application;

[0018] Figure 2 yes Figure 1 Exploded view;

[0019] Figure 3 yes Figure 1 Side view;

[0020] Figure 4 yes Figure 1 The main view;

[0021] Figure 5 yes Figure 3 Exploded view;

[0022] Figure 6 This is a three-dimensional perspective view of the double snap ring insert type caster in the embodiment of this application;

[0023] Figure 7 This is a three-dimensional perspective view of a common plug-in type caster in the embodiments of this application. Detailed Implementation

[0024] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0025] Please see Figures 1 to 7 A double-sided brake caster includes a caster bracket 1, a caster 2 rotatably mounted on the caster bracket 1, and brake handles 3 rotatably connected to both sides of the caster bracket 1 by bolts. The inner walls of the brake handles 3 are respectively provided with limiting grooves 31 on both sides, and the outer walls of the caster bracket 1 are respectively provided with limiting protrusions 11 that cooperate with the limiting grooves 31. The brake handles 3 rotate relative to the caster bracket 1 to disengage the limiting grooves 31 from the limiting protrusions 11, thereby causing the inner walls of the caster bracket 1 to press the caster 2 inward.

[0026] This application discloses a double-sided brake caster. By employing a double-sided braking structure, the brake handle is connected to both sides of the caster bracket. Limiting grooves on both sides of the inner wall of the brake handle engage with limiting protrusions on the outer wall of the caster bracket, achieving simultaneous braking on both sides. When the brake handle is rotated, the limiting grooves disengage from the limiting protrusions, causing the inner wall of the caster bracket to press inward against the caster, ensuring that both brake pads simultaneously contact and rub against the caster, thus significantly improving braking force. Furthermore, the even force distribution on both sides effectively avoids the problem of excessively rapid wear of brake pads on one side, extending the service life of the brake pads and reducing maintenance costs.

[0027] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, it also includes a limiting mechanism 4 for limiting the rotation angle of the brake handle 3 relative to the caster bracket 1.

[0028] In this embodiment, the limiting mechanism 4 ensures that the brake handle 3 will not rotate excessively during operation by limiting the rotation angle of the brake handle 3 relative to the caster bracket 1, thereby avoiding brake failure or caster damage due to operational errors. Its working principle is to set a limiting clip on the brake handle 3 and a matching limiting slot on the caster bracket 1. When the brake handle 3 rotates to a certain angle, the limiting clip will abut against the limiting slot, thereby preventing the brake handle 3 from continuing to rotate and ensuring that the brake handle 3 operates within a predetermined angle range.

[0029] Furthermore, as a preferred embodiment of this solution and not a limitation, the limiting mechanism 4 includes a limiting clip 41 disposed on the brake handle 3 and extending toward the caster bracket 1, and a limiting slot 42 disposed on the caster bracket 1 and cooperating with the limiting clip 41.

[0030] In this embodiment, the brake handle 3 is ensured not to exceed a predetermined angle during rotation, thereby preventing the brake handle 3 from exceeding the preset angle and allowing the operator to more conveniently control the start and stop of the brake. When the brake handle 3 rotates, the limiting latch 41 moves accordingly. When it reaches the limiting slot 42 on the caster bracket 1, the limiting latch 41 engages with the limiting slot 42, restricting further rotation of the brake handle 3. This process ensures that the brake handle 3 remains in a position that is convenient for upward or downward movement.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, it also includes a bearing hole 5 passing through the brake handle 3, the caster bracket 1, and the caster 2, with fasteners passing through the bearing hole 5 to connect the brake handle 3, the caster bracket 1, and the caster 2.

[0032] In this embodiment, fasteners (such as bolts or pins) pass through the bearing hole 5, tightly connecting the brake handle 3, caster bracket 1, and caster 2 together. This connection method not only provides sufficient mechanical strength but also ensures the coaxiality and alignment between the components, enabling the braking system to transmit force evenly when applying braking force. This avoids increased wear or structural damage caused by uneven force distribution, simplifies the assembly process, reduces production costs, and the fasteners limit the brake handle's rotation relative to the caster bracket, preventing it from expanding outward and ensuring the caster bracket can press the caster inward, thereby increasing friction and achieving a braking effect.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the limiting groove 31 is in the shape of a semi-pill, and the edge of the limiting groove 31 is provided with an arc-shaped transition 311.

[0034] In this embodiment, the semi-pill-shaped limiting groove 31 provides a larger contact area, allowing for a more stable fit between the limiting groove 31 and the limiting protrusion 11 on the caster bracket 1, thereby enhancing the connection strength and reliability between the brake handle 3 and the caster bracket 1. This design reduces stress concentration between the limiting groove 31 and the limiting protrusion 11, avoiding increased wear or connection failure due to insufficient contact area. The arc-shaped transition 311 further optimizes the performance of the limiting groove 31. The arc-shaped transition 311 eliminates the sharp edges of the limiting groove 31, reduces stress concentration, and provides a smooth contact surface, making the interaction between the limiting groove 31 and the limiting protrusion 11 smoother.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the limiting groove 31 is recessed outward to form connecting protrusions 33 on both sides of the outer wall of the brake handle 3, and the top of the connecting protrusions 33 is provided with an abutment platform 331 for fasteners to abut.

[0036] In this embodiment, a reliable support surface is provided for the fastener, and a flat support surface is provided for the fastener to prevent the fastener from loosening or shifting, ensuring the stability and durability of the overall structure, thereby improving the assembly accuracy.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the brake handle 3 is arranged in an inverted "U" shape, and the top of the brake handle 3 is provided with a downwardly extending baffle 34.

[0038] In this embodiment, the baffle 34 also provides an additional force application point, so that when the operator starts or stops the brake, he can control the rotation of the brake handle 3 relative to the caster bracket by pressing or stepping on the baffle 34, which improves the convenience of the braking system.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, the diameter of the bearing hole 5 is L, the shortest inner diameter of the limiting groove 31 is S, and the shortest inner diameter of the limiting protrusion 11 is D, wherein S≥L>D.

[0040] In this embodiment, the assembly accuracy and motion coordination between the brake handle (3), the caster bracket (1) and the caster (2) can be ensured, thereby improving the stability and reliability of the overall structure and avoiding jamming or loosening caused by size mismatch.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the limiting protrusion 11 is elliptical in shape.

[0042] In this embodiment, the elliptical design allows the limiting protrusion 11 to slide into and out of the limiting groove 31 more smoothly, reducing frictional resistance during operation and making the rotation of the brake handle 3 easier and more free. When the brake handle 3 rotates, the elliptical limiting protrusion 11 interacts with the limiting groove 31, and its smooth curved edge ensures a tight fit and smooth movement between the two.

[0043] The working principle of this embodiment is as follows:

[0044] This application discloses a double-sided brake caster. By employing a double-sided braking structure, the brake handle is connected to both sides of the caster bracket. Limiting grooves on both sides of the inner wall of the brake handle engage with limiting protrusions on the outer wall of the caster bracket, achieving simultaneous braking on both sides. When the brake handle is rotated, the limiting grooves disengage from the limiting protrusions, causing the inner wall of the caster bracket to press inward against the caster, ensuring that both brake pads simultaneously contact and rub against the caster, thus significantly improving braking force. Furthermore, the even force distribution on both sides effectively avoids the problem of excessively rapid wear of brake pads on one side, extending the service life of the brake pads and reducing maintenance costs.

[0045] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A double-sided brake caster, characterized in that, The system includes a caster bracket (1), a caster (2) rotatably mounted on the caster bracket (1), and a brake handle (3) rotatably connected to both sides of the caster bracket (1) by bolts. The brake handle (3) has a limiting groove (31) on both sides of its inner wall, and a limiting protrusion (11) that cooperates with the limiting groove (31) on both sides of the outer wall of the caster bracket (1). The brake handle (3) rotates relative to the caster bracket (1) to disengage the limiting groove (31) from the limiting protrusion (11), thereby causing the inner wall of the caster bracket (1) to press the caster (2) inward.

2. A double-sided brake caster according to claim 1, characterized in that, It also includes a limiting mechanism (4) for limiting the rotation angle of the brake handle (3) relative to the caster bracket (1).

3. A double-sided brake caster according to claim 2, characterized in that, The limiting mechanism (4) includes a limiting clip (41) disposed on the brake handle (3) and extending toward the caster bracket (1), and a limiting slot (42) disposed on the caster bracket (1) and cooperating with the limiting clip (41).

4. A double-sided brake caster according to claim 1, characterized in that, It also includes a bearing hole (5) through the brake handle (3), the caster bracket (1), and the caster (2), and fasteners pass through the bearing hole (5) to connect the brake handle (3), the caster bracket (1), and the caster (2).

5. A double-sided brake caster according to claim 1, characterized in that, The limiting groove (31) is in the shape of a semi-pill, and the edge of the limiting groove (31) is provided with an arc transition (311).

6. A double-sided brake caster according to claim 1, characterized in that, The limiting groove (31) is recessed outward to form connecting protrusions (33) on both sides of the outer wall of the brake handle (3), and the top of the connecting protrusions (33) is provided with an abutment platform (331) for fasteners to abut.

7. A double-sided brake caster according to claim 1, characterized in that, The brake handle (3) is arranged in an inverted "U" shape, and the top of the brake handle (3) is provided with a downwardly extending baffle (34).

8. A double-sided brake caster according to claim 4, characterized in that, The diameter of the bearing hole (5) is L, the shortest inner diameter of the limiting groove (31) is S, and the shortest inner diameter of the limiting protrusion (11) is D, wherein S≥L>D.

9. A double-sided brake caster according to claim 1, characterized in that, The limiting protrusion (11) is elliptical in shape.

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