CN111150194A

CN111150194A - Telescopic adjusting mechanism of walking stick type walking aid

Info

Publication number: CN111150194A
Application number: CN202010099820.6A
Authority: CN
Inventors: 冯海燕
Original assignee: Mirun Medical Technology Suzhou Co Ltd
Current assignee: Mirun Medical Technology Suzhou Co Ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-05-15
Anticipated expiration: 2040-02-18
Also published as: CN111150194B

Abstract

The invention discloses a telescopic adjusting mechanism of a walking stick type walking aid, which comprises an outer sleeve, an adjusting pipe and a handrail, wherein a connecting sleeve is formed on the handrail, the upper end of the adjusting pipe is inserted in the connecting sleeve of the handrail, a contracted pipe is formed at the lower end of the adjusting pipe, an inner inserting pipe is formed at the lower end of the contracted pipe, and the inner inserting pipe is inserted in the outer sleeve; the outer sleeve is formed with a plurality of conical limiting pipe joints, the outer wall of the upper end of each limiting pipe joint is formed with the inner wall of the lower end of the adjacent limiting pipe joint, an annular limiting surface is formed between every two adjacent limiting pipe joints, a plurality of cutting grooves are formed in the lower end of the inner inserting pipe, the lower end of the inner inserting pipe divided by the cutting grooves is formed into a plurality of arc sheets, conical expansion heads are inserted into the lower end of the inner inserting pipe in an inserting mode, the expansion heads are pressed on the arc sheets of the inner inserting pipe, and the lower end of each arc sheet of the inner inserting pipe abuts against the limiting surface of the.

Description

Telescopic adjusting mechanism of walking stick type walking aid

Technical Field

The invention relates to the technical field of walking aids, in particular to a telescopic adjusting mechanism of a crutch type walking aid.

Background

A walking aid is an appliance for assisting a human body to support the weight, keep balance and walk and is called a walking aid. The walking stick has the functions of assisting a human body to support the weight, keep balance and walk, is also one of walking aids, meets the ergonomics of some existing walking sticks, is suitable for people with various heights, and is characterized in that a rod of the walking stick is designed into two sections which are divided into an inner tube and an outer tube, the inner tube can move in the outer tube in a telescopic mode and is fastened and positioned through bolts, and the bolts are screwed on the outer tube in a bolt fastening mode and are pressed against the inner tube by utilizing the tail ends of the bolts; however, in the using process, the bolt is easy to loosen, so that the limiting failure is caused, and the user falls down.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a telescopic adjusting mechanism of a walking stick type walking aid, which adopts another limit adjusting mechanism, can be conveniently adjusted and can avoid the limit failure of a telescopic pipe on a walking stick.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the telescopic adjusting mechanism of the walking stick type walking aid comprises an outer sleeve, an adjusting pipe and a handrail, wherein a connecting sleeve is formed on the handrail, the upper end of the adjusting pipe is inserted into the connecting sleeve of the handrail, a contracted pipe is formed at the lower end of the adjusting pipe, an inner inserting pipe is formed at the lower end of the contracted pipe, and the inner inserting pipe is inserted into the outer sleeve; the outer sleeve is provided with a plurality of conical limiting pipe joints, the outer wall of the upper end of each limiting pipe joint is molded with the inner wall of the lower end of the adjacent limiting pipe joint, an annular limiting surface is molded between the two adjacent limiting pipe joints, the lower end of the inner inserting pipe is provided with a plurality of cutting grooves, the cutting grooves divide the lower end of the inner inserting pipe into a plurality of circular arc sheets, the lower end of the inner inserting pipe is inserted with a conical expansion head, the expansion head is pressed on the circular arc sheets of the inner inserting pipe, and the lower end of the circular arc sheets of the inner inserting pipe is pressed on the limiting surface of the outer sleeve; the upper end of the expansion head is fixedly connected with a steel cable rope, the steel cable rope is inserted in the adjusting pipe, the upper end of the steel cable rope is hinged with a locking bolt, and the locking bolt is screwed on the handrail.

Preferably, the minimum diameter of the inner wall of the limiting pipe joint on the outer sleeve is larger than the diameter of the outer wall of the inner inserting pipe on the adjusting pipe, and the diameter of the outer wall of the adjusting pipe is equal to the diameter of the inner wall of the outer sleeve.

Preferably, the lower end of the expansion head is formed with a bullet-shaped balancing weight.

Preferably, a guide block is fixedly inserted into the shrinkage pipe of the adjusting pipe in a splicing manner, a wire hole is formed in the guide block, and the steel cable is spliced in the wire hole of the guide block.

Preferably, a limiting block is fixedly inserted into the inner insertion pipe of the adjusting pipe, a steel cable is inserted into the limiting block, a pressure spring is inserted into the steel cable, and two ends of the pressure spring are pressed against the limiting block and the expansion head respectively.

Preferably, a rubber anti-slip sleeve is fixed on the lower end plug bush of the outer sleeve.

Preferably, the locking bolt is hinged to the steel cable rope in a manner that the lower end of the locking bolt is inserted into the adjusting pipe and fixedly connected with the connecting pipe in an inserting manner, a spherical end cover is formed at the lower end of the connecting pipe, the upper end of the steel cable rope penetrates through the end cover of the connecting pipe and fixedly connected with a ball in an inserting manner, and the ball is pressed against the end cover of the connecting pipe.

Preferably, the upper end of the locking bolt extends out of the handrail and is formed with a clover-shaped handle.

The invention has the beneficial effects that: it has designed neotype spacing adjustment mechanism for the walking stick, can avoid the spacing inefficacy of flexible pipe on the walking stick when length adjustment is convenient.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of a half section of the present invention;

FIG. 4 is a schematic cross-sectional view taken at A in FIG. 3;

fig. 5 is a schematic cross-sectional structure at B in fig. 3.

In the figure: 1. a side support frame; 11. limiting pipe joints; 12. a limiting surface; 2. an adjusting tube; 21. pipe shrinking; 22. inserting a tube; 23. grooving; 3. a handrail; 31. connecting sleeves; 4. an expansion head; 41. a balancing weight; 5. a wire rope; 6. locking the bolt; 61. a handle; 7. a pressure spring; 8. a limiting block; 9. a connecting pipe; 10. a ball bearing; 20. a rubber anti-slip sleeve; 30. and a guide block.

Detailed Description

Example (b): as shown in fig. 1 to 5, the telescopic adjusting mechanism of the walking aid comprises an outer sleeve 1, an adjusting tube 2 and a handrail 3, wherein a connecting sleeve 31 is formed on the handrail 3, the upper end of the adjusting tube 2 is inserted into the connecting sleeve 31 of the handrail 3, a contracting tube 21 is formed at the lower end of the adjusting tube 2, an inner inserting tube 22 is formed at the lower end of the contracting tube 21, and the inner inserting tube 22 is inserted into the outer sleeve 1; a plurality of conical limiting pipe joints 11 are formed on the outer sleeve 1, the outer wall of the upper end of each limiting pipe joint 11 is formed with the inner wall of the lower end of the adjacent limiting pipe joint 11, an annular limiting surface 12 is formed between the two adjacent limiting pipe joints 11, a plurality of cutting grooves 23 are formed at the lower end of the inner inserting pipe 22, the cutting grooves 23 divide the lower end of the inner inserting pipe 22 into a plurality of circular arc sheets, a conical expansion head 4 is inserted at the lower end of the inner inserting pipe 22, the expansion head 4 is pressed on the circular arc sheet of the inner inserting pipe 22, and the lower end of the circular arc sheet of the inner inserting pipe 22 is pressed on the limiting surface 12 of the outer sleeve 1; the upper end fixedly connected with wire rope 5 of inflation head 4, wire rope 5 pegs graft in adjusting tube 2, and the upper end of wire rope 5 articulates there is locking bolt 6, and locking bolt 6 spiro union is on handrail 3.

The minimum diameter of the inner wall of the upper limiting pipe joint 11 of the outer sleeve 1 is larger than the diameter of the outer wall of the inner inserting pipe 22 of the adjusting pipe 2, and the diameter of the outer wall of the adjusting pipe 2 is equal to the diameter of the inner wall of the outer sleeve 1.

The lower end of the expansion head 4 is formed with a bullet-shaped balancing weight 41.

A guide block 30 is fixedly inserted into the reducing pipe 21 of the adjusting pipe 2, a wire guide hole is formed on the guide block 30, and the steel cable 5 is inserted into the wire guide hole of the guide block 30.

A limiting block 8 is fixedly inserted into an inner insertion tube 22 of the adjusting tube 2, a steel cable 5 is inserted into the limiting block 8, a pressure spring 7 is inserted into the steel cable 5, and two ends of the pressure spring 7 are pressed against the limiting block 8 and the expansion head 4 respectively.

And a rubber anti-slip sleeve 20 is fixed on the lower end of the outer sleeve 1 through an inserting sleeve.

The locking bolt 6 and the steel cable rope 5 are hinged in a mode that the lower end of the locking bolt 6 is inserted into the adjusting pipe 2 and fixedly inserted with a connecting pipe 9, a spherical end cover is formed at the lower end of the connecting pipe 9, the upper end of the steel cable rope 5 penetrates through the end cover of the connecting pipe 9 and is fixedly inserted with a ball 10, and the ball 10 is pressed against the end cover of the connecting pipe 9.

The upper end of the locking bolt 6 extends out of the handrail 3 and is formed with a clover-shaped handle 61.

The working principle is as follows: the invention relates to a telescopic adjusting mechanism of a walking stick type walking aid, wherein when the existing walking stick is used as a walking stick, acting force can directly influence a bolt used for fastening, so that the conditions of bolt loosening and the like are caused, and the bolt limiting is invalid; further, the problem of falling down can occur;

the structure is that the locking bolt 6 is arranged on the handrail 3, the rotating direction of the locking bolt 6 is perpendicular to the direction of the walking stick leaning force, the loosening of the locking bolt 6 cannot be influenced, meanwhile, the locking bolt 6 can lift the expansion head 4, the expansion head 4 can be used for realizing the expansion deformation of the circular arc sheet at the lower end of the inner insertion tube 22, the circular arc sheet which deforms and expands can be pressed on the limiting surface 12 of the limiting tube joint 11 of the outer sleeve 1, during adjustment, the locking bolt 6 is rotated to realize the downward movement of the expansion head 4, and then the circular arc sheet at the lower end of the inner insertion tube 22 can be reset to be separated from the outer sleeve 1, so that the inner insertion tube 22 can be moved in the outer sleeve.

The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.

Claims

1. Telescopic adjusting mechanism of walking stick type helps capable ware, including outer tube (1), control tube (2) and handrail (3), the shaping has adapter sleeve (31) on handrail (3), and the upper end of control tube (2) is pegged graft in adapter sleeve (31) of handrail (3), its characterized in that: a reducing pipe (21) is formed at the lower end of the adjusting pipe (2), an inner inserting pipe (22) is formed at the lower end of the reducing pipe (21), and the inner inserting pipe (22) is inserted into the outer sleeve (1); a plurality of conical limiting pipe joints (11) are formed on the outer sleeve (1), the outer wall of the upper end of each limiting pipe joint (11) is formed with the inner wall of the lower end of the adjacent limiting pipe joint (11), an annular limiting surface (12) is formed between every two adjacent limiting pipe joints (11), a plurality of cutting grooves (23) are formed at the lower end of the inner inserting pipe (22), the cutting grooves (23) divide the lower end of the inner inserting pipe (22) into a plurality of arc sheets, the lower end of the inner inserting pipe (22) is inserted with a conical expansion head (4), the expansion head (4) is pressed on the arc sheets of the inner inserting pipe (22), and the lower ends of the arc sheets of the inner inserting pipe (22) are abutted against the limiting surface (12) of the outer sleeve (1); the upper end fixedly connected with wire rope (5) of inflation head (4), wire rope (5) are pegged graft in adjusting tube (2), and the upper end of wire rope (5) articulates there is locking bolt (6), and locking bolt (6) spiro union is on handrail (3).

2. The telescoping adjustment mechanism of a crutch-type walker of claim 1, wherein: the minimum diameter of the inner wall of the limiting pipe joint (11) on the outer sleeve (1) is larger than the diameter of the outer wall of the inner inserting pipe (22) on the adjusting pipe (2), and the diameter of the outer wall of the adjusting pipe (2) is equal to the diameter of the inner wall of the outer sleeve (1).

3. The telescoping adjustment mechanism of a crutch-type walker of claim 1, wherein: the lower end of the expansion head (4) is formed with a bullet-shaped balancing weight (41).

4. The telescoping adjustment mechanism of a crutch-type walker of claim 1, wherein: a guide block (30) is fixedly inserted into the reducing pipe (21) of the adjusting pipe (2), a wire guide hole is formed in the guide block (30), and the steel cable rope (5) is inserted into the wire guide hole of the guide block (30).

5. The telescoping adjustment mechanism of a crutch-type walker of claim 1, wherein: a limiting block (8) is fixedly inserted into an inner insertion tube (22) of the adjusting tube (2), a steel cable rope (5) is inserted into the limiting block (8), a pressure spring (7) is inserted into the steel cable rope (5), and two ends of the pressure spring (7) are pressed against the limiting block (8) and the expansion head (4) respectively.

6. The telescoping adjustment mechanism of a crutch-type walker of claim 1, wherein: and a rubber anti-slip sleeve (20) is fixed on the lower end plug bush of the outer sleeve (1).

7. The telescoping adjustment mechanism of a crutch-type walker of claim 1, wherein: the hinge mode of locking bolt (6) and wire rope (5) does, and the lower extreme of locking bolt (6) is pegged graft in adjusting tube (2) and is inserted to connect and be fixed with connecting pipe (9), and the shaping of connecting pipe (9) lower extreme has the end cover of sphere type, and the end cover that the upper end of wire rope (5) passed connecting pipe (9) is pegged graft and is fixed with ball (10), and ball (10) press on the end cover of connecting pipe (9).

8. The telescoping adjustment mechanism of a crutch-type walker of claim 7, wherein: the upper end of the locking bolt (6) extends out of the handrail (3) to form a clover-shaped handle (61).