Wheel with damping function

Abstract

The utility model discloses a wheel with shock absorption, which comprises a hub main body, an inner shock absorption ring and a connecting component, the inner shock absorption ring is arranged in the center of the hub main body, and the connecting component is embedded in the inner shock absorption ring and is used for being connected with an external rotating shaft; the automobile hub comprises a hub body and further comprises an outer damping ring, the hub body comprises an outer wheel part, an inner ring part and a plurality of connecting parts connected between the outer wheel part and the inner ring part, the outer damping ring is arranged outside the outer wheel part in a sleeving mode, the inner damping ring is embedded in the inner ring part, and the damping and buffering performance of the automobile hub is relatively good.

Description

Technical Field

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

[0002] Casters are widely used in related technologies, for example, on medical equipment such as carts, tricycles, and four-wheeled vehicles. Existing casters generally include a hub body, which includes an outer wheel portion, an inner ring portion, and a connecting portion disposed between the outer wheel portion and the inner ring portion. The inner ring portion is used to connect to the rotating shaft. The caster has rigid contact with both the ground and the rotating shaft, resulting in suboptimal shock absorption and cushioning performance, which in turn leads to a poor user experience.

[0003] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0004] The present invention aims to solve one of the problems existing in the existing related technologies to at least a certain extent. To this end, the present invention provides a wheel with shock absorption, which has relatively good shock absorption and buffering performance.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A wheel with shock absorption comprises a hub body, an inner shock absorption ring and a connecting member, wherein the inner shock absorption ring is arranged in the center of the hub body, and the connecting member is embedded in the inner shock absorption ring for connecting with an external rotating shaft.

[0007] In some embodiments, an outer shock-absorbing ring is also included. The hub body includes an outer wheel portion, an inner ring portion, and several connecting portions connected between the outer wheel portion and the inner ring portion. The outer shock-absorbing ring is sleeved on the outside of the outer wheel portion, and the inner shock-absorbing ring is embedded in the inner ring portion.

[0008] In some embodiments, the cross-section of the outer wheel portion is a structure that is low in the middle and high on both sides. A plurality of raised portions distributed along the circumferential direction are provided at the center of the outer wheel portion, and a plurality of groove portions distributed along the circumferential direction are provided on the inner circumferential surface of the outer shock-absorbing ring. When the outer shock-absorbing ring is sleeved on the outside of the outer wheel portion, the raised portions are clamped in the corresponding groove portions.

[0009] In some embodiments, a plurality of circumferentially spaced connecting holes are provided near the outer edge of the outer wheel portion, the outer edge of the outer shock-absorbing ring is bent inward to form a bent portion, and the bent portion wraps the outer edge of the outer wheel portion. A plurality of circumferentially spaced connecting columns are provided between the inner circumference of the outer shock-absorbing ring and the bent portion, and the connecting columns are inserted into the corresponding connecting holes.

[0010] In some embodiments, a plurality of first clamping portions spaced circumferentially are provided on the inner circumferential surface of the inner ring portion, and a plurality of first clamping grooves spaced circumferentially are provided on the outer circumferential surface of the inner shock-absorbing ring, and the first clamping portions are clamped in the corresponding first clamping grooves.

[0011] In some embodiments, a plurality of second clamping portions spaced circumferentially are provided on the outer circumferential surface of the connecting member, and a plurality of second clamping grooves spaced circumferentially are provided on the inner circumferential surface of the inner shock-absorbing ring, and the second clamping portions are clamped in the corresponding second clamping grooves.

[0012] In some embodiments, cross sections of the first clamping portion, the first clamping slot, the second clamping portion, and the second clamping slot are all T-shaped.

[0013] In some embodiments, a plurality of third clamping portions spaced apart along the circumferential direction are provided on the inner circumferential surface of the connecting member.

[0014] In some embodiments, the outer shock absorbing ring and the inner shock absorbing ring are integrally injection molded with the hub body and the connecting member.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. The utility model provides a wheel with shock absorption, which has relatively good shock absorption and buffering performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the caster in the embodiment;

[0018] Figure 2 1 is an exploded schematic diagram of the caster in the embodiment;

[0019] Figure 3 is a structural cross-sectional view of a caster in an embodiment;

[0020] Figure 4 is a three-dimensional schematic diagram of a hub body in an embodiment;

[0021] Figure 5 3D schematic diagram of the internal and external shock absorbing rings in the embodiment;

[0022] Figure 6 3D is a schematic three-dimensional diagram of a connecting member in an embodiment. DETAILED DESCRIPTION

[0023] The following examples illustrate the present invention, but the present invention is not limited by these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0024] Example 1: Figures 1 to 6 As shown, this embodiment provides a wheel with shock absorption, comprising a hub body 1, an inner shock absorbing ring 3, and a connecting member 4, wherein the inner shock absorbing ring 3 is disposed in the center of the hub body 1, and the connecting member 4 is embedded in the inner shock absorbing ring 3 for connection to an external rotating shaft. Furthermore, an outer shock absorbing ring 2 is also included. The hub body 1 comprises an outer wheel portion 11, an inner ring portion 12, and a plurality of connecting portions 13 connected between the outer wheel portion 11 and the inner ring portion 12. The outer shock absorbing ring 2 is sleeved on the outer wheel portion 11, and the inner shock absorbing ring 3 is embedded in the inner ring portion 12.

[0025] The shock-absorbing wheel provided in this embodiment has relatively good shock-absorbing and buffering performance.

[0026] Specifically, an outer shock-absorbing ring 2 is provided outside the outer wheel part 11, so that the caster has elastic and soft contact with the ground, avoiding hard contact. This can improve the user experience of users sitting on medical equipment such as trolleys, tricycles, and four-wheeled vehicles to a certain extent, and can also improve the product's passability to a certain extent.

[0027] In addition, by providing an inner shock-absorbing ring 3 between the inner ring portion 12 and the connecting member 4, the shock-absorbing and cushioning performance of the caster can be improved to a certain extent, reducing or preventing the vibration of the caster from being transmitted through the inner ring portion 12 to the connecting member 4 and then to the user sitting on medical equipment such as a trolley, tricycle, or four-wheeled vehicle, thereby improving the user experience.

[0028] Preferably, both the outer shock-absorbing ring 2 and the inner shock-absorbing ring 3 can be made of soft rubber.

[0029] In this embodiment, the cross-section of the outer wheel portion 11 is a structure that is low in the middle and high on both sides. A plurality of circumferentially spaced protrusions 110 are provided at the center of the outer wheel portion 11, and a plurality of circumferentially spaced grooves 21 are provided on the inner circumferential surface of the outer shock-absorbing ring 2. When the outer shock-absorbing ring 2 is sleeved on the outside of the outer wheel portion 11, the protrusions 110 are clamped in the corresponding grooves 21. Through the cooperation between the protrusions 110 and the grooves 21, the contact and connection area between the outer wheel portion 11 and the outer shock-absorbing ring 2 can be effectively increased, thereby achieving the purpose of improving the reliability and connection strength of the connection between the two.

[0030] Furthermore, a number of connecting holes 111 distributed along the circumferential direction are provided near the outer edge of the outer wheel portion 11, and the outer edge of the outer shock-absorbing ring 2 is bent inward to form a bending portion 22, and the bending portion 22 wraps the outer edge of the outer wheel portion 11. A number of connecting columns 23 distributed along the circumferential direction are provided between the inner circumference of the outer shock-absorbing ring 2 and the bending portion 22, and the connecting columns 23 are inserted into the corresponding connecting holes 111. It has a simple structure and a reasonable design. By providing the bending portion 22, the connecting columns 23 and the connecting holes 111, the contact and connection area between the outer wheel portion 11 and the outer shock-absorbing ring 2 can be further increased, thereby achieving the purpose of improving the reliability and connection strength of the connection between the two.

[0031] In this embodiment, a plurality of first clamping portions 121 distributed along the circumferential direction are provided on the inner circumferential surface of the inner ring portion 12, and a plurality of first clamping grooves 31 distributed along the circumferential direction are provided on the outer circumferential surface of the inner shock-absorbing ring 3. The first clamping portions 121 are clamped in the corresponding first clamping grooves 31. The structure is simple and the design is reasonable. Through the cooperation between the provided first clamping portions 121 and the first clamping grooves 31, the contact connection area between the inner ring portion 12 and the inner shock-absorbing ring 3 can be effectively increased, thereby achieving the purpose of improving the reliability and connection strength of the connection between the two.

[0032] Furthermore, a plurality of second clamping portions 41 distributed along the circumferential direction are provided on the outer circumferential surface of the connecting member 4, and a plurality of second clamping grooves 32 distributed along the circumferential direction are provided on the inner circumferential surface of the inner shock-absorbing ring 3. The second clamping portions 41 are clamped in the corresponding second clamping grooves 32. The structure is simple and the design is reasonable. Through the cooperation between the second clamping portions 41 and the second clamping grooves 32, the contact connection area between the connecting member 4 and the inner shock-absorbing ring 3 can be effectively increased, thereby achieving the purpose of improving the reliability and connection strength of the connection between the two.

[0033] Preferably, the cross-sections of the first clamping portion 121, the first clamping groove 31, the second clamping portion 41 and the second clamping groove 32 are all T-shaped, which is cleverly designed to further increase the contact connection area between two adjacent components and improve the reliability and connection strength of the connection between the two.

[0034] More preferably, a plurality of third clamping portions 42 spaced apart along the circumferential direction are provided on the inner circumferential surface of the connecting member 4. The third clamping portions 42 can better connect the connecting member 4 to the rotating shaft, thereby improving the reliability and stability of the connection between the two.

[0035] In this embodiment, the outer damping ring 2 and the inner damping ring 3 are integrally injection-molded with the hub body 1 and the connecting member 4. Specifically, during production, the hub body 1 and the connecting member 4 are first fixedly placed in corresponding positions in a mold. High-temperature soft glue is then poured into the mold. Once the high-temperature soft glue cools and sets, the outer damping ring 2 and the inner damping ring 3 are formed, resulting in the finished caster. Casters manufactured using this method have a better overall integrity, are more stable and reliable, and have a relatively longer service life.

[0036] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A wheel with shock absorption, characterized in that: The invention comprises a hub body (1), an inner shock absorbing ring (3) and a connecting member (4), wherein the inner shock absorbing ring (3) is arranged in the center of the hub body (1), and the connecting member (4) is embedded in the inner shock absorbing ring (3) for connecting to an external rotating shaft.

2. The wheel with shock absorption according to claim 1, characterized in that: The wheel hub body (1) further comprises an outer shock absorbing ring (2), wherein the wheel hub body (1) comprises an outer wheel portion (11), an inner ring portion (12), and a plurality of connecting portions (13) connected between the outer wheel portion (11) and the inner ring portion (12); the outer shock absorbing ring (2) is sleeved on the outside of the outer wheel portion (11), and the inner shock absorbing ring (3) is embedded in the inner ring portion (12).

3. The wheel with shock absorption according to claim 2, characterized in that: The cross section of the outer wheel portion (11) is a structure with a lower middle and higher sides. A plurality of convex portions (110) are provided at the center of the outer wheel portion (11) and are spaced apart along the circumference. A plurality of groove portions (21) are provided on the inner circumference of the outer damping ring (2). When the outer damping ring (2) is sleeved on the outer wheel portion (11), the convex portions (110) are locked in the corresponding groove portions (21).

4. The wheel with shock absorption according to claim 3, characterized in that: A plurality of connection holes (111) spaced apart along the circumferential direction are provided at positions near the outer edge of the outer wheel portion (11); the outer edge of the outer damping ring (2) is bent inward to form a bent portion (22); the bent portion (22) wraps around the outer edge of the outer wheel portion (11); a plurality of connection columns (23) spaced apart along the circumferential direction are provided between the inner circumference of the outer damping ring (2) and the bent portion (22); the connection columns (23) are inserted into the corresponding connection holes (111).

5. A wheel with shock absorption according to claim 2, 3 or 4, characterized in that: A plurality of first clamping portions (121) spaced apart along the circumferential direction are provided on the inner circumferential surface of the inner ring portion (12), and a plurality of first clamping grooves (31) spaced apart along the circumferential direction are provided on the outer circumferential surface of the inner damping ring (3), wherein the first clamping portions (121) are clamped in corresponding first clamping grooves (31).

6. The wheel with shock absorption according to claim 5, characterized in that: A plurality of second clamping portions (41) spaced apart along the circumferential direction are provided on the outer circumferential surface of the connecting member (4), a plurality of second clamping grooves (32) spaced apart along the circumferential direction are provided on the inner circumferential surface of the inner damping ring (3), and the second clamping portions (41) are clamped in the corresponding second clamping grooves (32).

7. The wheel with shock absorption according to claim 6, characterized in that: The cross sections of the first clamping portion (121), the first clamping groove, the second clamping portion (41) and the second clamping groove are all T-shaped.

8. A wheel with shock absorption according to claim 1, 2, 3 or 4, characterized in that: A plurality of third clamping portions (42) spaced apart along the circumferential direction are provided on the inner circumferential surface of the connecting member (4).

9. A wheel with shock absorption according to claim 2, 3 or 4, characterized in that: The outer shock absorbing ring (2) and the inner shock absorbing ring (3) are integrally injection-molded with the hub body (1) and the connecting member (4).

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