CN221067660U

CN221067660U - Wheel assembly and mobile carrier

Info

Publication number: CN221067660U
Application number: CN202322895538.0U
Authority: CN
Inventors: 王庆
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-06-04
Anticipated expiration: 2033-10-27

Abstract

The utility model discloses a wheel assembly and a mobile carrier, wherein the wheel assembly comprises a wheel core, a wheel hub and a damping mechanism arranged between the wheel core and the wheel hub, the damping mechanism comprises a limiting shell and an elastic piece arranged in the limiting shell, the outer walls of the limiting shell are respectively fixedly arranged on the wheel core and the wheel hub, the two ends of the elastic piece are respectively arranged on the inner wall of the limiting shell, the limiting shell can elastically deform, and the elastic force direction of the elastic piece extends along the radial direction of the wheel assembly. When the wheel assembly is subjected to jounce impact in the advancing process, the elastic piece and the limiting shell can be elastically deformed, so that the jounce impact caused by road jounce is not directly transmitted to the frame, an occupant is not directly subjected to rigid impact load, and the damping mechanism plays a certain role in buffering. The wheel assembly has few components, and the connecting structure between the components is simple, so that the whole structure of the wheel assembly is simple, and the wheel assembly is convenient to produce and manufacture.

Description

Wheel assembly and mobile carrier

Technical Field

The utility model particularly relates to a wheel assembly and a mobile carrier.

Background

Mobile vehicles such as child carts, child tricycles, and the like generally include a frame and a wheel assembly disposed at the bottom of the frame. In the use process of the movable carrier, the wheel assembly often encounters an uneven road surface, so that the movable carrier jolts in the running process, and the comfort of the movable carrier in use is affected. In the prior art, the damping mechanism is arranged on the wheel assembly of the part of the moving carrier, but after the damping mechanism is arranged on the wheel assembly, the whole structure of the wheel assembly is complex, and the production and the manufacture of the wheel assembly are not facilitated.

Disclosure of utility model

The utility model aims to overcome the defects in the prior art and provides a wheel assembly with a damping mechanism, which is simple in structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a wheel subassembly, is in including the wheel core that is located the center, the wheel hub that is located the periphery with set up damper between the wheel core with damper includes spacing casing and sets up elastic component in the spacing casing, the outer wall of spacing casing is fixed respectively to be set up the wheel core with on the wheel hub, the both ends of elastic component set up respectively on the inner wall of spacing casing, elastic deformation can take place for spacing casing, elastic component's elastic force direction is followed wheel subassembly's radial direction extends.

Preferably, when the wheel assembly is not acted by external force, the limit housing is in a hollow cylinder structure.

Further, the central axis of the limit housing is parallel to the central axis of the wheel assembly.

Further, the two ends of the elastic piece are respectively arranged on the two ends of the limiting shell in the inner diameter direction.

Still further, be provided with respectively on the both ends of spacing casing's the internal diameter direction towards the protruding projection in center of spacing casing, the projection includes along the first cylinder and the second cylinder that the internal diameter direction of spacing casing set up in order concentric, the diameter of first cylinder is greater than the diameter of second cylinder, the elastic component adopts the spring, the spring housing is established the outside of second cylinder, the tip of spring supports to establish on the terminal surface of first cylinder.

Further, two ends of the limiting shell in the outer diameter direction are fixedly arranged on the wheel core and the wheel hub respectively.

Preferably, the wheel core, the hub and the limit housing are integrally formed.

Preferably, the damper mechanisms are provided in plural groups, and plural groups of the damper mechanisms are disposed at intervals in the circumferential direction of the wheel assembly.

Preferably, the limit housings are all made of plastic material.

The utility model also provides a mobile vehicle having a wheel assembly as described in any one of the preceding claims.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the wheel assembly is provided with the damping mechanism, when the wheel assembly is subjected to jolt impact in the travelling process, the elastic piece and the limiting shell can be elastically deformed, so that the jolt impact caused by road jolt is not directly transmitted to the frame of the mobile carrier, an occupant taking the mobile carrier is not directly subjected to rigid impact load, and the damping mechanism plays a certain role in buffering, so that the comfort of the mobile carrier in use can be improved. And the components forming the wheel assembly are fewer, and the connecting structure between the components is simple, so that the whole structure of the wheel assembly is simple, and the wheel assembly is convenient to produce and manufacture.

Drawings

FIG. 1 is a perspective view of a stroller according to the present embodiment;

FIG. 2 is a schematic side view of the stroller of the present embodiment;

fig. 3 is a perspective view of the wheel assembly of the present embodiment;

FIG. 4 is a schematic front view of the wheel assembly of the present embodiment;

FIG. 5 is a schematic cross-sectional view of the wheel assembly of the present embodiment;

fig. 6 is a partially enlarged schematic illustration of fig. 5 at a.

Wherein: 1. a wheel core; 2. a hub; 3. a tire; 4. a limit housing; 41. a first column; 42. a second column; 5. an elastic member; 100. and a frame.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

The mobile carrier generally includes a frame 100 and a wheel assembly disposed at the bottom of the frame 100, and may be a stroller, a tricycle, a bicycle, or the like, in this embodiment, the stroller is used as an example, as shown in fig. 1 and 2.

As shown in fig. 3 to 5, the wheel assembly of the present utility model includes a wheel core 1, a hub 2, and a tire 3. The wheel core 1 is located the center of wheel subassembly, and wheel hub 2 is located the outside of wheel subassembly, and tire 3 cladding is at the periphery of wheel hub 2.

The wheel assembly further comprises a damping mechanism arranged in the gap, and a certain buffering effect can be achieved through the arrangement of the damping mechanism, so that vibration impact caused by road surface jolting can be prevented from being directly transmitted to the frame 100 of the mobile carrier, and an occupant taking the mobile carrier does not directly bear rigid impact load, so that the comfort of the mobile carrier in use can be improved.

The damping mechanism comprises a limiting shell 4 and an elastic piece 5. The limiting shell 4 can elastically deform, and the outer walls of the limiting shell 4 are respectively fixedly arranged on the wheel core 1 and the wheel hub 2. The elastic piece 5 is arranged in the limit shell 4, and two ends of the elastic piece are respectively arranged on the inner wall of the limit shell 4. In this embodiment, the elastic member 5 is a spring.

When the wheel assembly is subjected to jounce impact during traveling, the elastic member 5 is elastically deformed in the direction of the elastic force, and the limit housing 4 is also elastically deformed. The limiting housing 4 also needs to have a certain rigidity so that it can limit the elastic member 5 at the same time, so as to avoid the elastic member 5 from twisting. This prevents the shock impact caused by road jolts from being directly transmitted to the frame 100 of the mobile carrier, thereby providing a certain cushioning effect to the shock absorber.

In this embodiment, the limit housing 4 is made of a plastic material.

When the wheel assembly is not acted by external force, the limit shell 4 is of a hollow cylinder structure, and the wall thickness of the limit shell 4 is far smaller than the diameter of the limit shell, so that the limit shell 4 can also elastically deform under the condition of certain rigidity. Preferably, the central axis of the limit housing 4 is parallel to the central axis of the wheel assembly.

The elastic member 5 is provided at both ends in the inner diameter direction of the limit housing 4. In this embodiment, the two ends of the limiting housing 4 in the inner diameter direction are respectively provided with a convex column, and the convex column at each end is convex from the inner wall of the limiting housing 4 to the center of the limiting housing 4. The convex columns at each end part comprise a first column 41 and a second column 42, the first column 41 and the second column 42 are sequentially and concentrically arranged along the radial direction of the limiting shell 4, the second column 42 is close to the central axis of the limiting shell 4, and the diameter of the first column 41 is larger than that of the second column 42. The elastic member 5, i.e., the spring, is sleeved outside the second cylinder 42, and the end of the spring abuts against the end face of the first cylinder 41. Through setting up first cylinder 41 on the inner wall of spacing casing 4, can make the tip of elastic component 5 support to establish on the terminal surface of first cylinder 41, this can carry out the location to elastic component 5 better to when elastic component 5 receives vibrations impact load, make elastic component 5 can take place deformation along its elastic force direction. In addition, in the deformation process of the elastic piece 5, the second post 42 can limit the elastic piece 5, so as to avoid deformation in other directions.

Both ends of the limiting shell 4 in the outer diameter direction are respectively fixedly arranged on the wheel core 1 and the wheel hub 2. Preferably, the wheel core 1 and the wheel hub 2 are also made of plastic materials, and the wheel core 1, the wheel hub 2 and the limit housing 4 are integrally formed through a die. The wheel assembly has simple integral structure, simple forming process, reduced production cost of parts, greatly reduced number of parts required to be assembled on site, and improved production efficiency.

According to the shock absorbing and buffering requirements, the shock absorbing mechanisms may be provided in plural groups, with plural groups of shock absorbing mechanisms being disposed at intervals in the circumferential direction of the wheel assembly in the gap between the outer periphery of the wheel core 1 and the inner periphery of the wheel hub 2. In this embodiment, the damper is provided with three groups, and three groups of damper are evenly distributed along the circumferential direction of the wheel assembly.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. A wheel assembly, characterized by: including the wheel core that is located the center, be located the wheel hub of periphery and set up the wheel core with damping mechanism between the wheel hub, damping mechanism includes spacing casing and sets up elastic component in the spacing casing, the outer wall of spacing casing is fixed respectively to be set up the wheel core with on the wheel hub, the both ends of elastic component set up respectively on the inner wall of spacing casing, elastic deformation can take place for spacing casing, elastic component's elastic force direction is followed wheel assembly's radial direction extends.

2. The wheel assembly of claim 1, wherein: when the wheel assembly is not affected by external force, the limit shell is of a hollow cylinder structure.

3. The wheel assembly of claim 2, wherein: the central axis of the limiting shell is parallel to the central axis of the wheel assembly.

4. The wheel assembly of claim 2, wherein: the two ends of the elastic piece are respectively arranged on the two ends of the limiting shell in the inner diameter direction.

5. The wheel assembly as defined in claim 4, wherein: the two ends of the inner diameter direction of the limiting shell are respectively provided with a convex column protruding towards the center of the limiting shell, the convex column comprises a first column body and a second column body which are concentrically arranged in sequence along the inner diameter direction of the limiting shell, the diameter of the first column body is larger than that of the second column body, the elastic piece adopts a spring, the spring is sleeved outside the second column body, and the end part of the spring is propped against the end face of the first column body.

6. The wheel assembly of claim 2, wherein: the two ends of the limiting shell in the outer diameter direction are respectively fixedly arranged on the wheel core and the wheel hub.

7. The wheel assembly of claim 1, wherein: the wheel core, the wheel hub and the limit shell are integrally formed.

8. The wheel assembly of claim 1, wherein: the damping mechanisms are provided with a plurality of groups, and the plurality of groups of damping mechanisms are arranged at intervals along the circumferential direction of the wheel assembly.

9. The wheel assembly of claim 1, wherein: the limit housing is made of plastic material.

10. A mobile carrier, characterized by: a wheel assembly as claimed in any one of claims 1 to 9.