WO2020051869A1

WO2020051869A1 - Automatic folding crutch stool

Info

Publication number: WO2020051869A1
Application number: PCT/CN2018/105684
Authority: WO
Inventors: 刘文川
Original assignee: 深圳市怡川机械设备有限公司
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2020-03-19

Abstract

Disclosed is an automatic folding crutch stool, comprising a crutch and a stool support connected to the crutch. The crutch comprises a handle (1) and a crutch body. The handle (1) is provided at an upper end of the crutch body. The crutch body is provided with a drive control device, a guide sleeve (6) capable of sliding and rotating on the crutch body, and a fixing base (11) capable of rotating on the crutch body. The stool support comprises at least two supporting rods. One end of one supporting rod is hinged to the guide sleeve (6), and one end of the other supporting rod is hinged to the fixing base (11). The supporting rods are hinged to one another in the middle. The drive control device drives the guide sleeve (6) to slide up and down and rotate along the crutch body. A control button of the drive control device is provided on the crutch body and close to the handle (1).

Description

Automatic folding crutch stool

Technical field

The invention relates to a crutch stool, in particular to an automatic folding crutch stool.

Background technique

In order to facilitate people with physical disabilities such as patients with hemiplegia, a product that can be used as both a crutch and a stool has appeared on the market, a so-called crutch stool. The crutch stools on the market require two-handed operation when folded, and for those with only one hand to move, they cannot be opened normally. Leaving the crutches with one-handed operation will also bring security risks and may fall.

technical problem

In view of the defects of the prior art, the object of the present invention is to provide an automatic folding crutch stool.

Technical solutions

An automatic folding crutch stool includes a crutch and a stool support connected to the crutch. The crutch includes a handle and a crutch body. The handle is disposed on the upper end of the crutch body. The crutch body is provided with a driving device which can be slid and rotated. A guide sleeve and a fixing base rotatable thereon; the stool bracket comprises at least two support rods, one end of one of the support rods is hinged with the guide sleeve, and one end of the other support rod is hinged with the fixing base, and the support rod is in the middle The driving control device drives the guide sleeve to slide up and down along the crutch body to push the stool support to open or close, and the control button of the driving control device is arranged on the crutch body and close to the handle.

The crutch body is provided with a straight guide groove and an inclined guide groove connected from top to bottom. The guide sleeve is positioned by a positioning pin and can slide up and down along the straight guide groove and slide up and down along the inclined guide groove and is opposite to the crutch body. Turn.

A damping sleeve is fixed to one end of the second pipe section.

A connecting plate is hinged on the guide sleeve, and the other end of the connecting plate is hinged to the other end of the support rod.

The stool bracket includes four support rods, one of which is fixed to the support rod hinged to the guide sleeve and the other of the support rod hinged to the fixed base, and the other two support rods are respectively hinged to two inclined blocks and one inclined block. It is fixedly connected with the two oblique blocks.

The crutch body includes a pipe section 1 and a pipe section 2 sleeved with the pipe section, and the pipe section 1 and the pipe section 2 can slide relative to each other; the driving control device includes a switch 1 and a positioning pin 1 provided in the pipe section 1. Switch 2 provided in pipe section 2, transmission shaft connected between switch 1 and switch 2, support seat provided on pipe section 2 and sleeves connected to pipe section 2 with two ends respectively connected to the support seat and the guide. The sleeves are opposed to each other. One end of the tube section 1 is in contact with the guide sleeve. The tube section 2 is provided with a straight guide groove and an oblique guide groove connected from top to bottom. The positioning pins can be fixed in the tube section 1 in the straight guide groove. For sliding, the guide sleeve is positioned by the positioning pin two and can slide in the straight guide groove and slide in the inclined guide groove and rotate relative to the pipe section two.

The switch 1 and the switch 2 each include a lock pin, a swing arm wheel and a return spring. The lock pin of the switch 1 is a control button of the driving control device. One end of the lock pin of the switch 2 is disposed on the pipe section 1 and the pipe. In the gap between the two sections, the return spring abuts between the other end of the lock pin and the pipe section 1 or the pipe section 2, and the swing arm wheel is fixedly connected to the lock pin; one end of the transmission shaft is fixed to the swing of the switch 1. The arm wheel hole can slide in the swing arm wheel hole of the second switch.

The crutch body is a crutch tube, and the driving device includes an electric pull rod and a control button, the electric pull rod is fixed in the crutch tube, the handle is fixed at the upper end of the crutch tube, and the control button is fixed in the crutch tube near the handle. , The crutch tube is provided with a straight guide groove and an oblique guide groove connected from top to bottom. The guide sleeve is positioned by the positioning pin two and is connected with the electric pull rod to slide in the straight guide groove and slide in the oblique guide groove. Rotate relative to crutches.

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Beneficial effect

The automatic folding and spreading of the crutch stool is realized, and the operation process is simple and convenient; the crutch handle can be held by the crimping and folding processes, which is safe and reliable.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of an automatic folding crutch stool in a stretched state according to a preferred embodiment of the present invention.

FIG. 2 is a front view of a switch 1 of an automatic folding crutch stool according to a preferred embodiment of the present invention.

FIG. 3 is a left side view of a switch 1 of an automatic folding crutch stool connected to a driving shaft according to a preferred embodiment of the present invention.

4 is a top view of a switch of an automatic folding crutch stool according to a preferred embodiment of the present invention.

5 is a schematic perspective view of a switch of an automatic folding crutch stool according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of an automatic folding crutch stool in a folded state of a stool according to a preferred embodiment of the present invention.

FIG. 7 is a schematic diagram of an automatic folding crutch stool in a folded state of a stool according to another preferred embodiment of the present invention.

FIG. 8 is another perspective partial schematic view of a crutch tube of an automatic folding crutch stool in a folded state of a stool according to another preferred embodiment of the present invention.

Best Mode of the Invention

The present invention will be further described in detail through the following embodiments with reference to the accompanying drawings.

实施例Examples 11

1 to 7, an automatic folding crutch stool includes a handle 1, a switch 1, a pipe section 3, a switch 2, a positioning pin 1, a guide sleeve 6, a positioning pin 2, 7, a spring 8, and a support base. 9, pipe section 10, fixed seat 11, shock absorbing sleeve 12, support rod one 13, support rod two 14, support rod three 15, support rod four 16, oblique block one 17, oblique block two 18, connecting plate 19 and Transmission shaft 20.

The handle 1, the tube section 1 and the tube section 2 10 together form a crutch. The handle 1 is fixed to the upper end of the tube section 1 3, the upper end of the tube section 2 10 is sleeved in the lower end of the tube section 3 and the two can slide relative to each other. The shock absorbing sleeve 12 is a rubber sleeve, and the fixed sleeve is connected to the lower end of the pipe section 2 10, which can reduce the vibration caused by the crutch and the road impact during walking.

The first switch 2 includes a lock pin 21, a swing arm wheel 22 and a return spring 23. The lock pin 21 is locked in the pipe section 1 and one end is exposed outside the pipe section 3. The swing arm wheel 22 is fixedly connected to the lock pin, and the return spring Abutting on the lock pin 21. The upper end of the transmission shaft 20 is fixedly connected to the swing arm wheel 22. The locking pin 21 is fixed on the pipe section 1 near the handle 1, so that the user can press the locking pin 21 with the hand holding the handle 1. The structure of the switch two 4 is the same as that of the switch two. The lock pin of the switch two is locked in the pipe section two 10 and one end is in the gap between the pipe section three 3 and the pipe section two 10. The lower end of the transmission shaft 20 passes through the swing arm wheel hole of the switch two 10 and can slide therein.

The pipe section two 10 is provided with a straight guide groove and an oblique guide groove from top to bottom (refer to FIG. 8). The positioning pin 5 is clamped in the pipe section 1 3 and is below the switch 2 4 and passes through the straight guide groove. The guide sleeve 6 is sleeved on the upper part of the second pipe section 10, and is positioned by the positioning pin 7, and can slide and rotate in the straight guide groove and the inclined guide groove, thereby achieving sliding on the second pipe section 10 and relative to the second pipe section 2. 10 turns. The support base 9 is fixed on the second pipe joint 10, and the spring 8 is sleeved on the second pipe joint 10 and its two ends are in contact with the support base 9 and the guide bush 6, respectively. The lower end of the tube joint 1 abuts on the guide sleeve 6. The fixing base 11 is fixed at the lower part of the second pipe section 10 and is rotatable.

The stool support includes a support bar 13, a support bar 2 14, a support bar 3 15, a support bar 4 16, two inclined blocks 17, and two inclined blocks 18. The lower end of the supporting rod 13 is hinged to the fixing base 11. An oblique block 17 is fixed in the middle of the support rod 13, and an oblique block 2 18 is hinged in the middle of the support rod 3 15. Here, the oblique block 17 and the oblique block 18 are fixedly connected. The upper ends of the support rods 4 and 16 are hinged to the upper end of the connecting plate 19, and the lower end of the connecting plate 19 is fixedly connected to the guide sleeve 6. An oblique block 17 is fixed in the middle of the support rod 4 and 16 and an oblique block 2 18 is hinged in the middle of the support rod 14. Here, the oblique block 17 and the oblique block 18 are fixedly connected. The stool includes a stand and a seat cloth. The seat cloth is not shown in the figure, and the upper end of the support rod can be covered with a flexible plastic or leather cloth connection.

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The initial state is that the folding stool is stowed, and the user can use it as a crutch, and the handle 1 is held by one hand. If you want to use a stool, you can press the lock pin 21 with your fingers holding the handle 1, and the drive shaft 20 drives the lock pin of switch 2 4 to retract and open, so that pipe section 1 3 can slide up and down along pipe section 2 10. The user presses down on the handle 1 and the tube section 1 slides down to push the guide sleeve 6 down. The guide sleeve 6 drives the connecting plate 19 downward, the connecting plate 19 drives the support rods 4 and 16 to rotate, and the support rods 4 and 16 drives the inclined block 17 and the inclined block. One 17 drives the inclined block two 18, and the inclined block two 18 drives the supporting rod two 14, the supporting rod three 15 and the supporting rod one 13 to rotate, so that the stool is opened and the user can sit down. To return to the use of crutches, the user stands up, holds the handle 1, and the guide sleeve 6 slides up along the tube section 2 10 under the action of the spring 8 to drive the stool bracket to be retracted.

实施例Examples 22

Referring to FIG. 7 to FIG. 8, an automatic folding crutch stool includes a crutch and a stool support connected thereto. The stool support and the connection structure between it and the crutch are the same as those of the first embodiment. The crutch includes a crutch tube 10 'and a handle 1'. The handle 1 'is fixed to the upper end of the crutch tube 10'. An electric rod 23 'is provided in the crutch tube 10', and a guide sleeve 6 'is connected to the lower end of the electric rod 23'. The electric rod 23 'is controlled by a control button 21', and the control button 21 'is fixed on the crutch tube 10' near the handle 1 ' Location. The guide sleeve 6 'is fixed in the crutch tube 10 by a fixing pin 7'. The crutch tube 10 'is provided with a straight guide groove 101' and an oblique guide groove 102 'from top to bottom. The guide sleeve 6 is driven by the electric pull rod 23'. 'It can slide up and down along the straight guide groove 101' and the inclined guide groove 102 'and rotate relative to the crutch tube 10'.

The initial state is that the folding stool is stowed, and the user can use it as a crutch, and hold the handle 1 'with one hand. If you want to use the stool, you can press the control button 21 'with the finger of the handle 1' to open, the electric pull rod pushes the guide sleeve 6 'down along the crutch tube 10' and rotates, and the guide sleeve 6 'drives the stool bracket, so that the stool The user can sit down by spreading it side to back and turning behind him. To return to the use of crutches, the user stands up, holds the handle 1 ', presses the control button 21' off, and the guide sleeve 6 'is pulled by the electric lever 23' to drive the stool stand to retract.

The above is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions.

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Claims

An automatic folding crutch stool includes a crutch and a stool support connected to the crutch, which is characterized in that the crutch includes a handle and a crutch body, the handle is arranged on the upper end of the crutch body, and the crutch body is provided with a driving device which can be mounted on the crutch body. A sliding and rotating guide sleeve and a fixing base rotatable thereon; the stool bracket includes at least two support rods, one end of one of the support rods is hinged with the guide sleeve, and one end of the other support rod is hinged with the fixing base, The support rods are hinged to each other in the middle; the driving and controlling device drives the guide sleeve to slide up and down along the crutch body to push the stool bracket to open or close, and the control button of the driving and controlling device is arranged on the crutch body and close to the handle.
The automatic folding crutch stool according to claim 1, wherein the crutch body is provided with a straight guide groove and an inclined guide groove connected from top to bottom, and the guide sleeve is positioned by a positioning pin and can be guided along the straight guide. The groove slides up and down and slides up and down along the inclined guide groove and rotates relative to the crutch body.
The automatic folding crutch stool according to claim 1, wherein a lower end of the crutch body is provided with a damping sleeve.
The automatic folding crutch stool according to claim 1, wherein a connecting plate is hinged on the guide sleeve, and the other end of the connecting plate is hinged to the other end of the support rod.
The automatic folding crutch stool according to claim 1, characterized in that: the stool bracket comprises four support rods, and a support block hinged to the guide sleeve and a support rod hinged to the fixing base are respectively fixed with an oblique block- , The other two support rods are hinged to the two oblique blocks, The inclined block 1 and the inclined block 2 are fixedly connected.
The automatic folding crutch stool according to any one of claims 1-5, characterized in that: the crutch body comprises a tube section 1 and a tube section 2 connected to the tube section, and the tube sections 1 and 2 can be opposite to each other. Sliding; the driving control device includes a switch 1 and a positioning pin 1 provided in the pipe section 1, a switch 2 provided in the pipe section 2, a transmission shaft connected between the switch 1 and the switch 2 and a pipe shaft 2 The upper support seat and the spring sleeved on the pipe section two and the two ends of which respectively abut the support seat and the guide bush, one end of the pipe section abuts the guide bush, and the pipe section two is provided with a direct guide from top to bottom. Slot and oblique guide groove, the positioning pin can be slid in the straight guide groove when it is fixed on the pipe joint, the guide sleeve is positioned by the positioning pin two and can slide in the straight guide groove and slide in the oblique guide groove and is opposite to the pipe joint two Turn.
The automatic folding crutch stool according to claim 6, wherein the switch 1 and the switch 2 each include a lock pin, a swing arm wheel and a reset spring, and the lock pin of the switch 1 is a control button of the driving device, One end of the lock pin of switch two is disposed in the gap between the pipe section one and the pipe section two, a return spring abuts between the other end of the lock pin and the pipe section one or the pipe section two, and the swing arm wheel and the lock The pin is fixedly connected; one end of the transmission shaft is fixed in the swing arm wheel hole of the first switch and can slide in the swing arm wheel hole of the second switch.
The automatic folding crutch stool according to any one of claims 1-5, characterized in that: the crutch body is a crutch tube, and the driving control device comprises an electric pull rod and a control button, and the electric pull rod is fixed in the crutch tube. The handle is fixed on the upper end of the crutch tube, the control button is fixed in the crutch tube near the handle position, the crutch tube is provided with a straight guide groove and an oblique guide groove connected from top to bottom, and the guide sleeve is composed of two positioning pins. Positioned and connected with the electric pull rod, it can slide in the straight guide groove and slide in the oblique guide groove and rotate relative to the crutch tube.

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