CN211617844U

CN211617844U - Wheel assembly and child cart

Info

Publication number: CN211617844U
Application number: CN201922301235.5U
Authority: CN
Inventors: 刘峰; 张阳
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-02
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a wheel subassembly and children's shallow, the wheel subassembly is provided with the packing ring including the wheel joint subassembly that is used for being connected with children's articles for use's major structure, with wheel joint subassembly looks pivotal connection's universal subassembly, the wheel of rotation connection in the below of universal subassembly between wheel joint subassembly and the universal subassembly, and the inner circle and the outer lane of this packing ring contact with universal subassembly and wheel joint subassembly respectively. The utility model discloses a wheel subassembly and children's shallow is through setting up the packing ring between universal subassembly and wheel joint subassembly to make the inner circle and the outer lane of packing ring contact with universal subassembly and wheel joint subassembly respectively, at the implementation in-process, if jolt or rock, the packing ring rubs with wheel joint subassembly mutually, reduces and rocks between universal subassembly and the wheel joint subassembly, thereby alleviates the shake of wheel.

Description

Wheel assembly and child cart

Technical Field

The utility model relates to a wheel subassembly and children's shallow belongs to children's articles for use.

Background

In the prior art, the wheels of many children's products, including children's carriages, etc., can rotate universally, and the wheel assembly thereof includes a wheel joint assembly connected with the main structure of the children's products, a universal assembly pivotally connected with the wheel joint assembly, and wheels rotatably connected below the universal assembly. However, in the current wheel assembly structure, because a fit clearance exists between the wheel joint assembly and the universal assembly, when the wheel assembly is pushed, the problem of obvious wheel shaking exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a wheel subassembly and children's shallow.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a wheel assembly comprises a wheel joint assembly, a universal assembly and a wheel, wherein the wheel joint assembly is used for being connected with a main structure of a children product, the universal assembly is in pivot connection with the wheel joint assembly, the wheel is rotatably connected below the universal assembly, a gasket is arranged between the wheel joint assembly and the universal assembly, the gasket is provided with an inner ring and an outer ring located on one side opposite to the inner ring, and the inner ring and the outer ring of the gasket are respectively in contact with the universal assembly and the wheel joint assembly.

Further, the universal assembly comprises a rotating shaft which is pivotally connected with the wheel joint assembly, and the washer enables the inner ring of the washer to be sleeved on the outer wall of the rotating shaft through self elasticity.

Further, the universal joint assembly includes a yoke coupled to a lower portion of the shaft, and the wheel is rotatably coupled to the yoke.

Further, the wheel adapter assembly includes a bushing pivotally coupled to the wheel adapter assembly, and an outer race of the washer contacts an inner wall of the bushing.

Furthermore, the inner wall of the shaft sleeve is provided with an accommodating groove, the gasket is arranged in the accommodating groove, the outer ring of the gasket is in contact with the groove bottom of the accommodating groove, and the groove bottom is a groove wall opposite to the groove opening of the accommodating groove.

Further, the height of the receiving groove is greater than the thickness of the washer, where "height" and "thickness" both refer to the dimension in the axial direction of the pivot between the wheel joint assembly and the gimbal assembly.

Furthermore, the wheel joint assembly further comprises a wheel joint used for being connected with the main structure of the children product, the shaft sleeve is arranged inside the wheel joint, and the wheel joint is also in pivot connection with the universal assembly.

Further, the universal joint assembly includes a shaft pivotably inserted into the wheel joint and the sleeve, and an inner race of the washer is in contact with an outer wall of the shaft.

Further, the gasket is made of rubber.

The utility model also provides another kind of technical scheme: a child stroller comprises a stroller frame and the wheel assembly, wherein the wheel joint assembly is connected to the bottom of the stroller frame.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a wheel subassembly and children's shallow through set up the packing ring between universal subassembly and wheel joint subassembly to make the inner circle and the outer lane of packing ring contact with universal subassembly and wheel joint subassembly respectively, at the implementation in-process, if jolt or rock, the packing ring rubs with wheel joint subassembly mutually, reduces and rocks between universal subassembly and the wheel joint subassembly, thereby alleviates the shake of wheel, and thereby the packing ring atress is less can reduce the wearing and tearing to the packing ring in the left and right directions, prolongs the life-span of packing ring.

Drawings

Fig. 1 is a schematic side view of a wheel assembly and a stroller according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of a disassembled structure of the wheel assembly shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the stroller shown in FIG. 1;

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;

fig. 5 is a schematic view of a portion B of fig. 4.

The reference numbers in the figures are:

10. a wheel joint assembly; 11. a wheel joint; 12. a shaft sleeve; 13. accommodating grooves; 20. a gimbal assembly; 21. a rotating shaft; 22. a fork member; 30. a wheel; 40. a gasket; 50. a vehicle frame.

Detailed Description

The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables those skilled in the art to more readily understand the advantages and features of the invention.

Example one

Referring to fig. 1 to 5, the wheel assembly of the present embodiment includes a wheel joint assembly 10 for connecting with a main structure of the children's product, a universal joint assembly 20 pivotally connected with the wheel joint assembly 10, and a wheel 30 rotatably connected below the universal joint assembly 20.

A washer 40 is provided between the wheel joint assembly 10 and the gimbal assembly 20, the washer 40 having an inner race and an outer race on the opposite side of the inner race, the inner and outer races of the washer 40 being in contact with the gimbal assembly 20 and the wheel joint assembly 10, respectively.

The universal joint assembly 20 includes a shaft 21 pivotally connected to the wheel joint assembly 10, and a yoke 22 connected to a lower portion of the shaft 21, and the wheel 30 is rotatably connected to the yoke 22. The washer 40 is fitted over the outer wall of the rotation shaft 21 by its own elastic force and has its inner ring closely attached to the outer wall of the rotation shaft 21.

The wheel hub assembly 10 includes a wheel hub 11 for attachment to the body structure of the child product, and a hub 12 disposed within the wheel hub 11. The wheel joint 11 and the shaft sleeve 12 are both pivotally connected to the universal joint assembly 20, and specifically, the rotating shaft 21 is pivotally inserted into the shaft sleeve 12 and the wheel joint 11.

The packing 40 is disposed at a position corresponding to the shaft housing 12, that is, the outer race of the packing 40 is in contact with the inner wall of the shaft housing 12. In a more preferred embodiment, a receiving groove 13 is formed on the inner wall of the sleeve 12, a washer 40 is disposed in the receiving groove 13, and the outer ring of the washer 40 is in contact with the bottom of the receiving groove 13. The groove bottom here means: a groove wall opposite to the notch of the receiving groove 13. The opening direction of the notch is towards the rotating shaft 21. In the present embodiment, the height of the receiving groove 13 is larger than the thickness of the washer 40, and the "height" and the "thickness" are both dimensions in the axial direction of the rotary shaft 21.

In this embodiment, the gasket 40 is made of rubber.

Example two

This embodiment provides a stroller, as shown in fig. 1-5, comprising a frame 50 and a wheel assembly. The structure of the wheel assembly in this embodiment is the same as that of the wheel assembly in the first embodiment, in which the wheel joint assembly 10 is attached to the bottom of the frame 50, and the wheel 30 is a front wheel of the stroller.

According to the wheel assembly and the child stroller in the embodiment, the gasket is arranged between the universal assembly and the wheel joint assembly, the inner ring and the outer ring of the gasket are respectively contacted with the universal assembly and the wheel joint assembly, and if bumping or shaking occurs in the pushing process, the gasket and the wheel joint assembly rub against each other, so that shaking between the universal assembly and the wheel joint assembly is reduced, and shaking of the wheels is relieved.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A wheel assembly comprising a wheel joint assembly (10) for connection with a body structure of a children's article, a universal assembly (20) pivotally connected to the wheel joint assembly (10), a wheel (30) rotatably connected below the universal assembly (20), characterized in that: a washer (40) is arranged between the wheel joint assembly (10) and the universal assembly (20), the washer is provided with an inner ring and an outer ring which is positioned on the opposite side of the inner ring, and the inner ring and the outer ring of the washer (40) are respectively contacted with the universal assembly (20) and the wheel joint assembly (10).

2. The wheel assembly of claim 1, wherein: the universal assembly (20) comprises a rotating shaft (21) which is pivotally connected with the wheel joint assembly (10), and the washer (40) enables the inner ring to be sleeved on the outer wall of the rotating shaft (21) through self elasticity.

3. The wheel assembly of claim 2, wherein: the universal assembly (20) further comprises a fork member (22) connected with the lower part of the rotating shaft (21), and the wheel (30) is rotatably connected to the fork member (22).

4. The wheel assembly of claim 1, wherein: the wheel joint assembly (10) comprises a shaft sleeve (12) which is pivotally connected with the universal assembly (20), and the outer ring of the gasket (40) is in contact with the inner wall of the shaft sleeve (12).

5. The wheel assembly of claim 4, wherein: be provided with holding tank (13) on the inner wall of axle sleeve (12), packing ring (40) set up in holding tank (13), the outer lane of packing ring (40) with the tank bottom of holding tank (13) contacts, the tank bottom be with the cell wall that the notch of holding tank (13) is relative.

6. The wheel assembly of claim 5, wherein: the height of the accommodating groove (13) is greater than the thickness of the gasket (40).

7. The wheel assembly of claim 4, wherein: the wheel joint assembly (10) further comprises a wheel joint (11) connected with the main structure of the children product, the shaft sleeve (12) is arranged inside the wheel joint (11), and the wheel joint (11) is also in pivot connection with the universal assembly (20).

8. The wheel assembly of claim 7, wherein: the universal assembly (20) comprises a rotating shaft (21), the rotating shaft (21) is pivotally inserted into the shaft sleeve (12) and the wheel joint (11), and the inner ring of the gasket (40) is in contact with the outer wall of the rotating shaft (21).

9. The wheel assembly of claim 1, wherein: the gasket (40) is made of rubber.

10. A stroller comprising a frame (50), characterized in that: the stroller further comprising the wheel assembly of any of claims 1-9, the wheel joint assembly (10) being attached to a bottom portion of the frame (50).