Wheel shock absorption structure and child carrier

Patent metadata

Field	Value
Publication number	US-12005949-B2
Application number	US-202017787133-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Dec 20, 2019
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A wheel shock absorption structure and a child carrier having the wheel shock absorption structure, including a wheel shaft and a wheel seat connected with a frame, and a lower end of the wheel seat is rotatably connected with a wheel through the wheel shaft. Further including a shock absorber with an elastic structure, an upper end of the shock absorber is removably connected with an upper end of the wheel seat, and the shock absorber rotates synchronously along with the wheel seat; a lower end of the shock absorber is rotatably connected with the wheel shaft which is slidably connected with the lower end of the wheel seat. The shock absorber is driven by sliding of the wheel shaft to generate recoverable elastic deformation to provide damping and buffering. The bending deformation of the shock absorber ensures that the wheel shock absorption structure has a better shock absorbing effect.

First claim

What is claimed is:

1. A wheel shock absorption structure, comprising:
a wheel shaft, a mounting seat, and a wheel seat, the mounting seat being rotatably connected with a frame and detachably connected with the wheel seat, a lower end of the wheel seat being rotatably connected with a wheel through the wheel shaft; and
a shock absorber with an elastic structure, an upper end of the shock absorber is connected with an upper end of the wheel seat, and the shock absorber rotates synchronously along with the wheel seat;
wherein the upper end of the wheel seat is coupled to the mounting seat, and the upper end of the shock absorber is clamped around the mounting seat and clamped between the wheel seat and the mounting seat.

2. The wheel shock absorption structure according to claim 1 , wherein a lower end of the shock absorber is rotatably connected with the wheel shaft which is slidably connected with the lower end of the wheel seat; and the shock absorber is driven by sliding of the wheel shaft to generate recoverable elastic deformation to provide damping and buffering.

3. The wheel shock absorption structure according to claim 2 , wherein the shock absorber is driven by the sliding of the wheel shaft to generate elastic bending deformation to provide damping and buffering.

4. The wheel shock absorption structure according to claim 3 , wherein the shock absorber has a bending structure.

5. The wheel shock absorption structure according to claim 4 , wherein the shock absorber is formed by bending a strip-shaped object.

6. The wheel shock absorption structure according to claim 1 , wherein the lower end of the wheel seat is provided with an elongated slot for the wheel shaft to slide.

7. The wheel shock absorption structure according to claim 6 , wherein the elongated slot is arranged obliquely relative to the wheel seat.

8. A child carrier comprising the frame and the wheel mounted on the frame, wherein the child carrier further comprises the wheel shock absorption structure according to claim 1 connected between the frame and the wheel, wherein the upper end of the wheel seat of the wheel shock absorption structure is connected with the frame, and the wheel is slidably connected with the lower end of the wheel seat through the wheel shaft.

9. The child carrier according to claim 8 , wherein the frame is a child bed frame or a child stroller frame.

10. A wheel shock absorption structure, comprising:
a wheel shaft, a mounting seat, and a wheel seat, the mounting seat being rotatably connected with a frame and detachably connected with the wheel seat, a lower end of the wheel seat being rotatably connected with a wheel through the wheel shaft; and
a shock absorber with an elastic structure, an upper end of the shock absorber is connected with an upper end of the wheel seat, and the shock absorber rotates synchronously along with the wheel seat;
wherein the shock absorber comprises a connection portion disposed on the mounting seat, and the connection portion has a snap ring structure with an opening.

11. The wheel shock absorption structure according to claim 10 , wherein the mounting seat is provided with a groove matched with the snap ring structure, and the snap ring structure is engaged with the mounting seat through the groove.

12. The wheel shock absorption structure according to claim 10 , wherein the connection portion bends and extends toward the wheel shaft to form a cantilever portion, and a lower end of the cantilever portion is rotatably connected with the wheel shaft.

13. The wheel shock absorption structure according to claim 12 , wherein a bending part of the cantilever portion is clamped on the mounting seat.

14. The wheel shock absorption structure according to claim 13 , wherein the mounting seat protrudes a positioning protrusion which is fitted by the bending part of the cantilever portion.

15. The wheel shock absorption structure according to claim 13 , wherein a direction of the opening of the snap ring structure is opposite to a direction of a notch formed at the bending part of the cantilever portion.

16. The wheel shock absorption structure according to claim 13 , wherein the upper end of the wheel seat protrudes a clamping protrusion on which the bending part of the cantilever portion is carried.

17. The wheel shock absorption structure according to claim 12 , wherein a plane where the snap ring structure is positioned is non-parallel to a plane where the cantilever portion is positioned.

18. The wheel shock absorption structure according to claim 12 , wherein the lower end of the cantilever portion is curled to form a positioning ring for the wheel shaft to insert.

19. The wheel shock absorption structure according to claim 10 , wherein the upper end of the wheel seat is coupled to the mounting seat, and the upper end of the shock absorber is clamped between the wheel seat and the mounting seat.

Assignees

• Wonderland Switzerland Ag

Inventors

• Zeng Haibo

Classifications

• B62B2301/05

  Details of the attachment of the wheel assembly to the chassis · CPC title

• B60B33/0049

  the rolling axle being horizontal · CPC title

• B62B2301/20

  Resilient wheel suspension using springs · CPC title

• B60B33/0057

  the rolling axle being offset from swivel axis · CPC title

• B60B33/0039

  Single wheels · CPC title