Anti-fall device

Patent metadata

Field	Value
Publication number	US-11353080-B2
Application number	US-202016907321-A
Country	US
Kind code	B2
Filing date	Jun 22, 2020
Priority date	Aug 23, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

An embodiment of the present application discloses an anti-fall device including a trigger mechanism, a deformable structure and a shell. The deformable structure is connected with the trigger mechanism and is set to be compressed and elastically deformed when located in the shell. The trigger mechanism is set in the shell and is configured to drive the deformable structure to move in a direction away from the trigger mechanism, so that the deformable structure pops out of the shell and recovers to a natural state from a compressed state.

First claim

What we claim is:

1. An anti-fall device comprising:
a trigger mechanism, a deformable structure and a shell;
wherein the deformable structure is connected with the trigger mechanism, the deformable structure is set to be compressed and elastically deformed when it is located in the shell, and the trigger mechanism is set in the shell and is configured to drive the deformable structure to move in a direction away from the trigger mechanism to make the deformable structure pop out of the shell and recover from a compressed state to a natural state;
wherein the deformable structure is set to be compressed and elastically deformed in a first direction and a second direction when it is located in the shell and limited by the shell in the first direction and the second direction;
the trigger mechanism is set to drive the deformable structure to move in a direction toward the trigger mechanism when the deformable structure is located outside the shell until the deformable structure is located in the shell, to make the deformable structure be elastically deformed in a third direction;
the first direction, the second direction, and the third direction cross each other;
the deformable structure comprises a first sub-deformable structure and a second sub-deformable structure connected to the trigger mechanism, the trigger mechanism comprises a first connection portion and a second connection portion, the trigger mechanism is connected with the first sub-deformable structure through the first connection portion and is connected with the second sub-deformable structure through the second connection portion;
wherein the first sub-deformable structure comprises a first elastic support bar, both ends of the first elastic support bar are connected with the first connection portion through a pair of first elastic connection portions, the second sub-deformable structure comprises a second elastic support bar, and both ends of the second elastic support bar are connected with the second connection portion through a pair of second elastic connection portions.

2. The anti-fall device according to claim 1 , wherein the first direction, the second direction, and the third direction are perpendicular to each other.

3. The anti-fall device according to claim 1 , wherein the trigger mechanism further comprises a gear, the first connection portion and the second connection portion respectively correspond to a first rack and a second rack engaged with the gear, and the first rack and the second rack are arranged in parallel.

4. The anti-fall device according to claim 3 , wherein the trigger mechanism further comprises a motor configured to drive the gear to rotate, and the first rack and the second rack are both arranged parallel to the first direction.

5. The anti-fall device according to claim 1 , wherein a first elastic member is connected between the pair of first elastic connection portions, and a second elastic member is connected between the pair of second elastic connection portions, and both the first elastic member and the second elastic member are configured to be compressed and elastically deformed in the first direction when the first sub-deformable structure and the second sub-deformable structure are in the shell.

6. The anti-fall device according to claim 5 , wherein both the first elastic member and the second elastic member are springs.

7. The anti-fall device according to claim 1 , wherein the first elastic support bar and the second elastic support bar are both arranged parallel to the first direction.

8. The anti-fall device according to claim 1 , wherein the first elastic support bar is provided with a third elastic member, the second elastic support bar is provided with a fourth elastic member, and both the third elastic member and the fourth elastic member are set to be compressed and elastically deformed in the second direction when the first sub-deformable structure and the second sub-deformable structure are in the shell.

9. The anti-fall device according to claim 8 , wherein a side of the first elastic support bar remote from the trigger mechanism is provided with a first receiving groove, the third elastic member is provided in the first receiving groove, a side of the second elastic support bar remote from the trigger mechanism is provided with a second receiving groove, and the fourth elastic member is provided in the second receiving groove.

10. The anti-fall device according to claim 8 , wherein the third elastic member comprises a plurality of third springs arranged in parallel and spaced apart along the first direction, and the fourth elastic member comprises a plurality of fourth springs arranged in parallel and spaced apart along the first direction.

11. The anti-fall device according to claim 1 , wherein the anti-fall device is configured to be arranged on a protected object, and further comprises a controller,
wherein the trigger mechanism is connected with an output end of the controller, and the controller is configured to control the trigger mechanism to drive the deformable structure to move in a direction away from the trigger mechanism or to drive the deformable structure to move in a direction toward the trigger mechanism according to an acceleration of the protected object.

12. The anti-fall device according to claim 11 , further comprising:
an acceleration sensor connected to an input end of the controller, the acceleration sensor being configured to detect acceleration of the protected object and send a detected acceleration signal to the controller.

13. The anti-fall device according to claim 12 , further comprising:
a timer connected to the controller, wherein the timer is configured to start timing when receiving a start signal sent by the controller and to send a recorded time signal to the controller;
the controller is further configured to control the trigger mechanism to drive the deformable structure to move in a direction away from the trigger mechanism or to drive the deformable structure to move in a direction toward the trigger mechanism according to the time signal.

14. The anti-fall device according to claim 1 , wherein the deformable structure is made of an elastic material.

15. The anti-fall device according to claim 1 , wherein a surface of the shell is provided with at least one foldable strip structure, and the at least one foldable strip structure is configured to attach to the surface of the shell when in an unfolded state and form a ring structure when in a folded state.

16. The anti-fall device according to claim 1 , wherein the shell is configured to be provided on a protected object, and a surface of the shell is provided with a groove for receiving the protected object.

17. The anti-fall device according to claim 1 , wherein the shell is configured to be provided on a protected object, and a surface of the shell is provided with a connection structure for connecting with the protected object.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wu Yunpeng
• Wang Zifeng
• Sun Junmin
• Ren Yan
• Wei Jinggang
• Cao Lei

Classifications

• F16F2230/0047

  Measuring, indicating · CPC title

• F16F3/0876 Primary

  and of the same shape · CPC title

• F16F2230/18

  Control arrangements · CPC title

• F16F15/046 Primary

  using combinations of springs of different kinds (F16F15/085 takes precedence) · CPC title

• F16M13/06

  also serviceable for other purposes, e.g. to be used as spade, chair, ski-stick · CPC title