CN110604378B

CN110604378B - Multifunctional crutches for assisting upstairs

Info

Publication number: CN110604378B
Application number: CN201910962032.2A
Authority: CN
Inventors: 方兴; 王飞宇; 唐湖; 曹从文; 朱攀; 潘国凡
Original assignee: Quzhou University
Current assignee: Chengdu Qizhizhi Intellectual Property Operation Co ltd; Maifu Shandong Scientific Instrument Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2021-07-06
Anticipated expiration: 2039-10-11
Also published as: CN110604378A

Abstract

The invention discloses a multifunctional crutch that can assist going upstairs, comprising a crutch main body and an armrest clamping mechanism; the crutch main body includes a crutch rod and a handle with an adjustable length; the armrest clamping mechanism is arranged at the bottom of the crutch rod, and comprises The U-shaped fixed seat is composed of the A board, the B board and the C board connecting the A board and the B board; the outer side of the A board is provided with a rod foot, and the inner side is provided with a first clamping block; The semi-circular guide rail is matched with the push rod and a rotating handle is sleeved on the outer side; one end of the push rod is fixedly connected with the clamping block lining plate, the other end is provided with an inclined surface, and the clamping block lining plate is provided with a second clamping block; A transmission pin is provided, and a lock is provided on the top; a cylindrical guide rail connected with the clamping block lining board is arranged between the A plate and the B plate, and a spring is sleeved on the cylindrical guide rail. The multifunctional crutches capable of assisting upstairs of the present invention are used in conjunction with the handrail clamping mechanism for clamping the railings, which not only facilitates the elderly to walk on flat ground, but also can effectively assist the elderly to climb the stairs.

Description

Multifunctional walking stick capable of assisting in going upstairs

Technical Field

The invention relates to a crutch, in particular to a multifunctional crutch which can assist in going upstairs and is convenient to use on the flat ground.

Background

With the arrival of aging society, the living and health problems of the old people are increasingly paid attention, and the proportion of people with inconvenient legs and feet among the old people is higher and higher. The crutch is known as the third leg of the user, and is an important auxiliary tool for people with injured lower limbs or inconvenient legs and feet. The walking of the old people with inconvenient legs and feet by using the walking stick is very common, but the walking sticks are very inconvenient to use when climbing stairs, so that the old people with inconvenient legs and feet can not well help go upstairs, and the old people can also carry the walking stick to cause burden to go upstairs.

Some power-assisted crutches capable of assisting the old to climb stairs appear in the market at present. Although the walking sticks for assisting the old to go upstairs provide convenience for the old to go upstairs, the walking sticks for going upstairs are complex in structure, complex to operate and high in manufacturing cost, are not beneficial to the old to walk on a flat road and are not practical enough.

Disclosure of Invention

The invention aims to provide a multifunctional crutch capable of assisting in climbing stairs and being convenient to carry. The multifunctional walking stick capable of assisting in going upstairs is simple to operate and high in reliability, the walking stick body is matched with the handrail clamping mechanism for clamping the handrail, so that the walking stick is convenient for the old to walk on the flat ground, and the handrail clamping mechanism can reliably clamp the handrail and can effectively assist the old to go upstairs.

The technical scheme of the invention is as follows: the multifunctional crutch capable of assisting in going upstairs comprises a crutch main body and a handrail clamping mechanism; the crutch main body comprises a crutch rod with adjustable length and a grip arranged at the top of the crutch rod; the handrail clamping mechanism is arranged at the bottom of the walking stick rod; the handrail clamping mechanism comprises a U-shaped fixed seat; the U-shaped fixing seat is composed of a plate A, a plate B and a plate C for connecting the plate A and the plate B to form a U shape; the outer side of the A plate is provided with a cane foot, and the inner side of the A plate is provided with a first clamping block; the outer side of the plate B is provided with a clamping operation mechanism, and the clamping operation mechanism comprises a semicircular guide rail fixedly connected with the plate B, a push rod matched with the semicircular guide rail and a rotary handle sleeved on the outer side of the semicircular guide rail; one end of the push rod is fixedly connected with a clamping block lining plate positioned on the inner side of the plate B, and a second clamping block is arranged on the clamping block lining plate; the other end of the push rod is provided with an inclined surface, the rotating handle is correspondingly provided with a transmission pin matched with the inclined surface, and when the rotating handle rotates, the transmission pin moves on the inclined surface of the push rod to drive the push rod to move; the top of the rotating handle is provided with a lockset for locking the rotating handle; a cylindrical guide rail is arranged between the plate A and the plate B, the cylindrical guide rail is connected with the clamping block lining plate through a sliding pair, and a spring is sleeved on the cylindrical guide rail and between the plate A and the clamping block lining plate.

Compared with the prior art, the multifunctional walking stick capable of assisting in going upstairs is characterized in that the walking stick body is matched with the handrail clamping mechanism for clamping the handrail, when going upstairs, the handrail clamping mechanism can clamp the handrail through the obliquely wedged push rod structure, then the handrail clamping mechanism is fixed on the handrail through ratchet self-locking, at the moment, a user can hold the walking stick rod with two hands and climb the stairs with force together with legs, and when the clamping needs to be relieved, the second clamping block can be reset under the action of the second clamping block reset spring only through unlocking of the lock, so that the operation is simple and convenient; moreover, the multifunctional crutch capable of assisting in going upstairs can be used for going upstairs with hands and feet, so that the burden of legs is relieved, and meanwhile, the multifunctional crutch also has the function of exercising hand joints, and can achieve two purposes at one stroke; in addition, the handrail clamping mechanism has small and compact structure, can be used as the foot of the crutch to be in contact with the ground, and can not bring inconvenience to walking on flat ground, thereby ensuring that the crutch has more comprehensive functions.

Preferably, the lockset comprises a shell, wherein a ratchet wheel, a ratchet wheel buckle matched with the ratchet wheel, a ratchet wheel unlocking cam and a ratchet wheel buckle spring are arranged in the shell, and the ratchet wheel unlocking cam and the ratchet wheel buckle spring are respectively arranged on two sides of the ratchet wheel buckle; one end of the ratchet buckle spring is connected with the ratchet buckle, and the other end of the ratchet buckle spring is connected with the inner wall of the shell; a rotating shaft of the ratchet wheel unlocking cam extends out of the shell to be connected with the unlocking breaking pin, and the unlocking breaking pin can be broken to enable the ratchet wheel buckle to release the limitation on the ratchet wheel. The lock with the structural design is small in structure, simple to operate, stable and reliable, the ratchet wheel can rotate towards one direction but cannot rotate from the other direction due to the matching of the ratchet wheel buckle and the ratchet wheel, when the stair handrail needs to be clamped, the handle is rotated by holding the rotating handle, the stair handrail is loosened after the clamp blocks clamp the stair handrail, when the stair handrail needs to be unlocked, the bolt is only needed to be pulled, the ratchet wheel buckle is enabled to release the limitation on the ratchet wheel, and the second clamp blocks reset under the action of the second clamp block reset spring, so that the clamping on the stair handrail is released.

As optimization, a fixing column is arranged between the plate A and the plate B; the fixing column is a double-end stud with threads at two ends, and the thread stop position is provided with a step to form a shape with a large middle and two small ends; and two ends of the fixing column respectively extend out of the through holes on the plate A and the plate B and are locked by nuts. The setting of stationary mast has further increased the firmness and the steadiness of U type fixing base, and then has guaranteed the handrail fixture's of this application life and the reliability when using.

Preferably, the bottom of the stick foot is provided with a silica gel pad. When walking on flat ground, the stick feet are in contact with the ground, so that the stability of the stick feet in the use process needs to be ensured; the friction coefficient between the silica gel pad and the ground is high, so that the safety of the crutch in the using process is ensured.

As optimization, the crutch rod comprises a rod A and a rod B, a group of limiting holes are formed in the rod A, and spring pins matched with the limiting holes are correspondingly arranged on the rod B. The walking stick can stretch out and draw back through the spring pin and the limiting hole, is more convenient to use, can be suitable for people with different heights, and is wide in application range.

Preferably, the handle is made of silica gel. The silica gel grip can improve the comfort level of a user and is convenient to realize the connection between the grip and the crutch rod.

Preferably, a lamp is arranged on the handle. The user of the crutch is very dangerous when walking in dark or insufficient light; by arranging the lamp on the handle, when the user walks in a place with insufficient light, the user can turn on the lamp to illuminate, and the convenience in use is effectively improved.

Drawings

FIG. 1 is a schematic structural view of a multi-functional crutch capable of assisting in going upstairs according to the present invention;

FIG. 2 is a schematic view of the handrail clamping mechanism of the present invention;

FIG. 3 is a schematic view of the construction of the semicircular track in the present invention;

fig. 4 is a schematic view of the construction of a walking stick shaft of the present invention;

FIG. 5 is a schematic view of the internal structure of the lock of the present invention;

fig. 6 is an external view of the lock of the present invention.

The labels in the figures are: 1-a crutch body; 11-crutch rod, 111-A rod and 112-B rod; 12-handle, 121-lamp; 2-a handrail clamping mechanism; 21-U-shaped fixed seats, 211-A plates, 212-B plates, 213-C plates and 214-fixed columns; 22-a cane foot; 23-a cylindrical guide rail; 24-push rod, 241-inclined plane; 25-a clamp block lining plate; 26-semicircular guide rails; 27-lock, 271-ratchet, 272-ratchet buckle, 273-ratchet unlocking cam, 274-ratchet buckle spring, 275-shell, 276-unlocking break pin; 28-rotating the handle; 29-a drive pin; 30-a first clamp splice; 31-a second clamp block; 32-second clamp splice return spring.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.

Referring to fig. 1 to 6, the multifunctional crutch capable of assisting in going upstairs comprises a crutch body 1 and a handrail clamping mechanism 2; the crutch main body 1 comprises a crutch rod 11 with adjustable length and a grip 12 arranged at the top of the crutch rod 11; the handrail clamping mechanism 2 is arranged at the bottom of the walking stick rod 11; the handrail clamping mechanism 2 comprises a U-shaped fixed seat 21; the U-shaped fixed seat 21 is composed of an A plate 211, a B plate 212 and a C plate 213 for connecting the A plate 211 and the B plate 212 to form a U shape; the outer side of the A plate 211 is provided with a crutch foot 22, and the inner side is provided with a first clamping block 215; the outer side of the B plate 212 is provided with a clamping operation mechanism, and the clamping operation mechanism comprises a semicircular guide rail 26 fixedly connected with the B plate 212, a push rod 24 matched with the semicircular guide rail 26 and a rotary handle 28 sleeved on the outer side of the semicircular guide rail 26; one end of the push rod 24 is fixedly connected with a clamp block lining plate 25 positioned on the inner side of the B plate 212, and a second clamp block 251 is arranged on the clamp block lining plate 25; the other end of the push rod 24 is provided with an inclined surface 241, the rotating handle 28 is correspondingly provided with a driving pin 29 matched with the inclined surface 241, and when the rotating handle 28 rotates, the driving pin 29 moves on the inclined surface 241 of the push rod 24 to drive the push rod 24 to move; the top of the rotating handle 28 is provided with a lock 27 for locking the rotating handle 28; a cylindrical guide rail 23 is arranged between the A plate 211 and the B plate 212, the cylindrical guide rail 23 is connected with the clamping block lining plate 25 through a sliding pair, and a spring 252 is sleeved on the cylindrical guide rail 23 between the A plate 211 and the clamping block lining plate 25.

As a specific example: the lock 27 comprises a shell 275, a ratchet 271, a ratchet buckle 272 matched with the ratchet 271, a ratchet unlocking cam 273 and a ratchet buckle spring 274 are arranged in the shell 275 and are respectively arranged on two sides of the ratchet buckle 272; one end of the ratchet buckle spring 274 is connected with the ratchet buckle 272, and the other end is connected with the inner wall of the shell 275; the rotating shaft of the ratchet unlocking cam 273 protrudes from the housing 275 to the outside and is connected to the unlocking snapping pin 276, and the ratchet catch 272 can be released from the ratchet 271 by snapping the unlocking snapping pin 276. The lock 27 with the structural design is small in structure, simple to operate, stable and reliable, the ratchet wheel buckle 272 and the ratchet wheel 271 are matched to enable the ratchet wheel 271 to rotate towards one direction but not to rotate from the other direction, when the stair handrail needs to be clamped, the handle 28 is rotated by holding with a hand, the stair handrail is loosened after the clamp blocks are clamped, when the stair handrail needs to be unlocked, the unlocking pin 276 is only needed to be pulled, the ratchet wheel buckle 272 is enabled to release the limitation on the ratchet wheel 271, and the second clamp blocks 31 are reset under the action of the second clamp block reset spring 32 to release the clamping on the stair handrail.

As a specific example: a fixing column 214 is arranged between the A plate 211 and the B plate 212, the fixing column 214 is a double-end stud with threads at two ends, and the fixing column 214 has a step at the end of the threads to form a shape with a large middle and two small ends; two ends of the fixing column 214 respectively extend out of the through holes on the A plate 211 and the B plate 212 and are locked through nuts. The fixing column 214 is arranged to further increase firmness and stability of the U-shaped fixing seat 21, so that the service life of the handrail clamping mechanism 2 and the reliability of the handrail clamping mechanism when in use are guaranteed.

As a specific example: the bottom of the cane foot 22 is provided with a silica gel pad. When walking on flat ground, the foot 22 is in contact with the ground, so that the stability of the walking stick during use needs to be ensured; the friction coefficient between the silica gel pad and the ground is high, so that the safety of the crutch in the using process is ensured.

As a specific example: the walking stick rod 11 comprises a rod A111 and a rod B112, wherein the rod A111 is provided with a group of limiting holes, and the rod B112 is correspondingly provided with spring pins matched with the limiting holes. The crutch rod 11 can stretch out and draw back through the spring pin and the limiting hole, so that the crutch is more convenient to use, can be suitable for people with different heights, and is wide in application range.

As a specific example: the handle 12 is made of silica gel. The silica gel grip 12 can improve the comfort of the user and facilitate the connection between the grip 12 and the crutch shaft 11.

As a specific example: the handle 12 is provided with a lamp 121. The user of the crutch is very dangerous when walking in dark or insufficient light; by installing the lamp 121 on the handle 12, when walking in a place with insufficient light, the button on the handle 12 can be pressed, and the lamp 121 is turned on for illumination, so that the convenience of use is effectively improved.

The working principle of the invention is as follows: when walking, the foot 22 contacts with the ground, the user holds the grip 12 to start walking, and the crutch rod 11 can be extended and retracted to adjust the length thereof to suit different people. When a user goes up and down stairs, the user stands on the stairs with feet, contracts the crutch rod 11, horizontally crouchs the crutch, clamps the handrail clamping mechanism 2 on the handrail, and enables the first clamping block 30 to abut against the handrail; the rotating handle 28 is held by hand to rotate, the pin 29 moves on the inclined surface 241 of the push rod 24 to drive the push rod 24 to move, so that the clamping block lining plate 25 is pushed to move on the cylindrical guide rail 23, the second clamping block 31 on the clamping block lining plate 25 is abutted against the handrail and matched with the first clamping block 30 to clamp the handrail, the rotating handle 28 is loosened after the clamping block clamps the handrail, the rotating handle 28 is locked, and at the moment, a user can hold the crutch rod 11 with two hands and climb the stairs with the legs together; when the clamping needs to be released, the unlocking snapping pin 276 only needs to be snapped, so that the ratchet wheel buckle 272 releases the limitation on the ratchet wheel 271, the second clamping block 31 is reset under the action of the second clamping block reset spring 32, and the clamping on the stair handrail is released. If the user needs to go upstairs, the handrail clamping mechanism 2 moves forwards along the stair handrail, and then is locked again, and the action of going upstairs is repeated. After the stair reach the destination floor, the stair handrail clamping mechanism 2 is firstly unlocked and then dismounted from the stair handrail.

The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the structural elements of the present invention.

Claims

1. The multifunctional crutches that can assist going upstairs, is characterized in that: comprise crutch main body (1) and armrest clamping mechanism (2);

The crutch body (1) comprises a crutch rod (11) with an adjustable length and a handle (12) provided on the top of the crutch rod (11); the armrest clamping mechanism (2) is provided on the crutch rod (11) )bottom of;

The armrest clamping mechanism (2) includes a U-shaped fixing seat (21); the U-shaped fixing seat (21) is composed of a plate A (211) and a plate B (212), and connects the plate A (211) and the plate B The C board (213) of (212) is formed to form a U shape; the A board (211) is provided with a pole foot (22) on the outer side, and the inner side is provided with a first clamping block (30); the B board (212) A clamping operating mechanism is provided on the outer side of the bracket, and the clamping operating mechanism includes a semicircular guide rail (26) fixedly connected with the B plate (212), a push rod (24) matched with the semicircular guide rail (26), and a sleeve A rotating handle (28) arranged on the outer side of the semicircular guide rail (26); one end of the push rod (24) is fixedly connected with the clamping block lining plate (25) located on the inner side of the B plate (212), and the clamping block lining plate ( 25) is provided with a second clamping block (31); the other end of the push rod (24) is provided with an inclined surface (241), and the rotating handle (28) is correspondingly provided with a transmission pin that cooperates with the inclined surface (241). (29), when the rotary handle (28) rotates, the transmission pin (29) moves on the inclined surface (241) of the push rod (24), and drives the push rod (24) to move; the top of the rotary handle (28) is provided with A lock (27) for locking the rotary handle (28); a cylindrical guide rail (23) is arranged between the A board (211) and the B board (212), and the cylindrical guide rail (23) is connected to the clip The block lining plate (25) is connected by a sliding pair, and on the cylindrical guide rail (23), between the A plate (211) and the clamping block lining plate (25), a second clamping block return spring (32) is sleeved .

2. The multifunctional crutch that can assist going upstairs according to claim 1, wherein the lock (27) comprises a housing (275), and a ratchet (271) and a ratchet wheel are arranged inside the housing (275). (271) a matching ratchet buckle (272), a ratchet unlocking cam (273) and a ratchet buckle spring (274) respectively provided on both sides of the ratchet buckle (272); one end of the ratchet buckle spring (274) is connected with the ratchet buckle (272), and the other end is connected with the inner wall of the housing (275); the rotating shaft of the ratchet unlocking cam (273) extends from the housing (275) to the outside and is connected with the unlocking pin (276), The ratchet buckle (272) can release the restriction on the ratchet (271) by breaking the unlocking pin (276).

3. The multifunctional crutch that can assist in going upstairs according to claim 1, characterized in that: a fixing column (214) is arranged between the A board (211) and the B board (212); the fixing The column (214) is a double-ended stud with threads at both ends, and has a stepped shape at the end of the thread to form a large middle and small ends; (212) The upper through hole protrudes and is locked by a nut.

4 . The multifunctional crutch that can assist in going upstairs according to claim 3 , wherein the bottom of the cane foot ( 22 ) is provided with a silicone pad. 5 .

5. The multifunctional crutch that can assist going upstairs according to claim 1, wherein the crutch rod (11) comprises an A rod (111) and a B rod (112), and the A rod (111) is on the A set of limit holes are provided, and spring pins for matching with the limit holes are correspondingly provided on the B rod (112).

6. The multifunctional crutch that can assist in going upstairs according to any one of claims 1 to 5, wherein the handle (12) is made of silicone material.

7. The multifunctional crutch that can assist in going upstairs according to any one of claims 1 to 5, wherein a lamp (121) is provided on the handle (12).