CN211560744U

CN211560744U - Safety wheelchair

Info

Publication number: CN211560744U
Application number: CN202020143539.3U
Authority: CN
Inventors: 车军双
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-09-25
Anticipated expiration: 2030-01-22

Abstract

The utility model provides a safe wheelchair, relates to medical instrument technical field, including bottom plate, the back of the chair, handrail, sliding sleeve, litter, supporting shoe, handle, spring pin, pinhole, first electric putter, second electric putter, guide pillar, guide pin bushing, support claw, fortune horse wheel, universal wheel, battery, first electric putter adjustment button, second electric putter adjustment button. The novel wheelchair is provided with the safety stay bar, so that the wheelchair can be kept still under the manual operation of a user, and the user can get on or off the wheelchair in a safe state; the novel wheelchair is also provided with a fixable and telescopic supporting leg driven by an electric push rod, so that a user can be helped to safely get on or off the wheelchair under the operation of an attendant; when the novel multifunctional electric bicycle runs up and down slopes, the base plate can be relatively level through the adjusting button, and therefore safety of a user when the user runs up and down the slopes is guaranteed.

Description

Safety wheelchair

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to safe wheelchair.

Background

The utility model with the application number of CN201720694685.3 discloses a safety wheelchair for health care department, which comprises a fixed plate, wherein the center of the upper surface of the fixed plate is connected with the lower end of an upper pressure spring, the upper end of the upper pressure spring is connected with the lower surface of a movable plate, the lower surface of the fixed plate is connected with the upper end of a lower pressure spring, the lower end of the lower pressure spring is connected with the upper end of a double-layer sucker, a rotating wheel is respectively arranged on the rotating shaft, two ends of the movable plate are respectively connected with one end of a drawstring, and the other end of the drawstring bypasses the rotating wheel and passes through a hole arranged; the lower ends of the supporting legs are respectively connected with a magnetic universal wheel, and the lower end of the outer wall of the double-layer sucker is sleeved with a magnetic ring; the movable wheel can avoid easy movement of the movable wheel when a user needs to stand up or is about to sit down, and the use safety is improved.

The utility model discloses a traditional wheelchair has improved, nevertheless still has following shortcoming:

1. when a user needs to stand up, the double-layer sucker is actually still in a suspended state, the universal wheel can still move, only when the hip of the user is separated from the movable plate, the universal wheel can be relatively fixed, and unsafe factors still exist in the gap time;

2. when a user needs to sit down, the user sits on a plate capable of moving up and down, and the uncertainty brings unsafe feeling to the user;

3. in the sitting process, as long as the pressure of the hip is exerted on the movable plate, the double-layer sucker can be separated from the ground, and the universal wheels can start to loosen, so that the movement of the wheelchair can still not be avoided.

In view of the above, there is a need for improvements in this technology.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a safety wheelchair, which overcomes the defects of the prior art, can keep the wheelchair immobile in the process of standing up or sitting down of a user, provides two operation modes of manual operation and electric operation, and can also make adaptive adjustment in ascending and descending.

In order to realize the purpose, the novel technical scheme is as follows:

a safety wheelchair comprises a bottom plate, a chair back fixedly connected to the rear end of the upper surface of the bottom plate, handrails fixedly arranged on two sides of the upper surface of the bottom plate, and a supporting mechanism, wherein the supporting mechanism comprises supporting legs fixedly arranged at four corners of the lower surface of the bottom plate and safety supporting rods positioned in the middle parts of two sides of the lower surface of the bottom plate, universal wheels are arranged at the bottom ends of the supporting legs, the safety supporting rods comprise sliding sleeves arranged in the vertical direction, the upper ends of the sliding sleeves are fixedly connected to the lower surface of the handrails, the lower ends of the sliding sleeves penetrate through the bottom plate and extend downwards, the lower ends of the sliding sleeves are higher than the bottom ends of the universal wheels, sliding rods are further connected in the sliding sleeves in a sliding mode, the top ends of the sliding rods are connected with supporting rods, handles are arranged on the side faces, far away from the direction of the bottom plate, the handles penetrate through, the side wall of the supporting rod is fixedly connected with a spring pin, the side wall of the sliding sleeve above the spring pin is provided with an upper pin hole, the side wall of the sliding sleeve below the spring pin is provided with a lower pin hole, the bottom end face of the sliding rod is fixedly connected with a supporting block through a connecting rod, the supporting block is positioned on the outer side of the lower end opening of the sliding sleeve, when the spring pin is clamped in the upper pin hole, the height of the bottom end face of the supporting block is higher than that of the bottom end of the universal wheel, and when the spring pin is clamped in the lower pin hole, the height of the bottom end face of the supporting block is lower than or equal to that of the bottom end of the universal wheel.

Preferably, the supporting leg comprises a guide pillar and a guide sleeve slidably connected to the outer surface of the guide pillar, the top end surface of the guide pillar is fixedly connected with the lower end surface of the bottom plate, the universal wheel is fixedly connected with the bottom end surface of the guide pillar, the lower end of the outer surface of the side wall of the guide sleeve is also fixedly connected with a supporting claw, and the bottom end of the supporting claw is provided with a horse wheel; connecting plates are fixedly connected between the guide sleeves of the 2 supporting legs positioned on the front side or the rear side respectively, a first electric push rod is further arranged at the center of the upper end face of the connecting plate positioned on the front side, the fixed end of the first electric push rod is fixedly connected with the lower surface of the bottom plate, the telescopic end is fixedly connected with the upper end face of the connecting plate, a second electric push rod is further arranged at the center of the upper end face of the connecting plate positioned on the rear side, the fixed end of the second electric push rod is fixedly connected with the lower surface of the bottom plate, and the telescopic end is fixedly connected with the upper end face of the connecting plate; the back of the chair rear surface still inlay and be equipped with the battery, back of the chair up end still be equipped with first electric putter adjustment button, second electric putter adjustment button, first electric putter pass through first electric putter adjustment button and battery electric connection, second electric putter pass through second electric putter adjustment button and battery electric connection.

Preferably, the bottom end face of the supporting block is provided with an anti-skid block.

Preferably, a plurality of miniature suckers are arranged on the bottom end face of the supporting block.

Preferably, the spring catch includes the sleeve of one end fixed connection in the lateral wall surface of branch, telescopic inner wall surface still sliding connection have the round pin post, the bottom face of round pin post still be equipped with the spring, the one end of spring and branch be located the outer wall fixed surface of sleeve and be connected, the other end and the bottom face fixed connection of round pin post, the top face of round pin post and the inner wall surface sliding connection of sliding sleeve, when the round pin post slides to last pinhole or lower pinhole, the round pin post is extrudeed by the spring and is gone up pinhole or lower pinhole.

Preferably, the number of the toes of the supporting claw is 4.

Preferably, the claw toes are divided into a front group and a rear group, each group comprises 2 claw toes, and the connecting line of the middle points of the 2 claw toes in any group is vertical to the front and rear direction of the bottom plate.

The novel safety wheelchair has the beneficial effects that:

1. the novel wheelchair is provided with the safety stay bar, so that the wheelchair can be kept still under the manual operation of a user, and the user can get on or off the wheelchair in a safe state;

2. the novel wheelchair is also provided with a fixable and telescopic supporting leg driven by an electric push rod, so that a user can be helped to safely get on or off the wheelchair under the operation of an attendant;

3. when the novel multifunctional electric bicycle runs up and down slopes, the base plate can be relatively level through the adjusting button, and therefore safety of a user when the user runs up and down the slopes is guaranteed.

Drawings

FIG. 1: the side section view of the novel device;

FIG. 2: the partial enlarged view at the position A of the novel device;

1: bottom plate, 2: first electric putter, 3: sliding sleeve lower part, 4: guide sleeve, 5: support claw, 6: fruehorse wheel, 7: guide post, 8: universal wheel, 9: supporting block, 10: slide rod, 11: connecting plate, 12: second electric putter, 13: chair back, 14: first electric putter adjustment button, 15: second electric putter adjustment button, 16: a sliding sleeve, 17: handle, 18: arm rest, 19: pin hole, 19-1: upper pin hole, 19-2: lower pin hole, 20: spring pin, 20-1: sleeve, 20-2: spring, 20-3: pin, 21: a support rod.

Detailed Description

The following description is of the preferred embodiment of the present invention only, and is not intended to limit the scope of the present invention, which is to be accorded the widest scope consistent with the principles and spirit of the present invention.

Examples 1,

As shown in fig. 1 and 2, a safety wheelchair comprises a bottom plate 1, a chair back 13 fixedly connected to the rear end of the upper surface of the bottom plate, armrests 18 fixedly arranged on two sides of the upper surface of the bottom plate, and a supporting mechanism, wherein the supporting mechanism comprises supporting legs fixedly arranged at four corners of the lower surface of the bottom plate and safety supporting rods positioned in the middle parts of two sides of the lower surface of the bottom plate, universal wheels 8 are arranged at the bottom ends of the supporting legs, the safety supporting rods comprise sliding sleeves 16 arranged in the vertical direction, the upper ends of the sliding sleeves 16 are fixedly connected to the lower surface of the armrests, the lower ends of the sliding sleeves penetrate through the bottom plate and extend downwards, the lower ends of the sliding sleeves are higher than the bottom ends of the universal wheels, sliding rods 10 are further connected in the sliding sleeves in a sliding manner, supporting rods 21 are connected to the top ends of the sliding rods 10, handles 17 are arranged on the, a strip-shaped through hole which can be used for the handle 17 to slide up and down is further arranged at the intersection of the handle 17 and the side wall of the sliding sleeve 16, a spring pin 20 is further fixedly connected to the side wall of the supporting rod 21, an upper pin hole 19-1 is further formed in the side wall of the sliding sleeve 16 above the spring pin, a lower pin hole 19-2 is further formed in the side wall of the sliding sleeve 16 below the spring pin, a supporting block 9 is further fixedly connected to the bottom end surface of the sliding rod 10 through a connecting rod, the supporting block 9 is located on the outer side of the lower end opening of the sliding sleeve, when the spring pin is clamped in the upper pin hole 19-1, the height of the bottom end surface of the supporting block 9 is higher than that of the bottom end of the universal wheel, and when the spring pin is clamped in the lower pin hole 19-2, the height of the bottom end surface of the supporting;

the bottom end surface of the supporting block 9 is provided with an anti-skid block;

the spring pin comprises a sleeve 20-1, one end of the sleeve is fixedly connected to the outer surface of the side wall of the supporting rod 21, a pin column 20-3 is further connected to the inner wall surface of the sleeve 20-1 in a sliding mode, a spring 20-2 is further arranged on the bottom end face of the pin column 20-3, one end of the spring 20-2 is fixedly connected to the outer wall surface of the supporting rod 21, located in the sleeve, of the sleeve, the other end of the spring is fixedly connected to the bottom end face of the pin column 20-3, the top end face of the pin column is connected to the inner wall surface of the sliding sleeve 16 in a sliding mode, and when the pin column slides to an upper pin hole or a lower pin hole, the pin column is extruded.

This neotype theory of use:

when a user sits on the wheelchair and needs to stand up, the user holds the handle 17 with both hands and presses down to make the bottom end surface of the supporting block 9 contact with the ground, at this time, the wheelchair is fixed, the spring pin 20 is clamped in the lower pin hole 19-2, and the user stands up without the wheelchair moving.

In fact, the support block 9, which is in full contact with the ground, is similar to two crutches, providing a stable support for the user; in addition, the supporting block 9 can be made into a triangle or a square, the bottom of the supporting block is provided with an anti-slip block, the stability of the wheelchair can be kept under the locking state of the spring pin 20, and when the wheelchair needs to sit down, a patient holds the handle 17 by hand and sits down under the condition that the wheelchair does not move.

Further, but handle 17 outside end fixedly connected with height-adjusting's telescopic link, the vertical setting of telescopic link to fix the telescopic joint with other spring catch, set up the handle on the top of telescopic link, convenient like this in the user need not bow to hold, thereby make the wheelchair safer more convenient from top to bottom.

Furthermore, when a user sits on the wheelchair, the user can press the spring pin 20, pull the handle 17 upwards, and clamp the spring pin 20 into the upper pin hole 19-1, so that the wheelchair can freely walk under the pushing action.

Examples 2,

On the basis of embodiment 1, this embodiment is further improved, and is different from embodiment 1 in that:

as shown in fig. 1 and 2, the supporting leg includes a guide post 7 and a guide sleeve 4 slidably connected to the outer surface of the guide post 7, the top end surface of the guide post 7 is fixedly connected to the lower end surface of the bottom plate 1, the universal wheel is fixedly connected to the bottom end surface of the guide post 7, the lower end of the outer surface of the side wall of the guide sleeve 4 is also fixedly connected to a supporting claw 5, and the bottom end of the supporting claw 5 is provided with a trojan wheel 6; the guide sleeves 4 of the 2 supporting legs positioned at the front side or the rear side are respectively and fixedly connected with a connecting plate 11, a first electric push rod 2 is further arranged at the center of the upper end face of the connecting plate 11 positioned at the front side, the fixed end of the first electric push rod 2 is fixedly connected with the lower surface of the bottom plate, the telescopic end is fixedly connected with the upper end face of the connecting plate 11, a second electric push rod 12 is further arranged at the center of the upper end face of the connecting plate 11 positioned at the rear side, the fixed end of the second electric push rod 12 is fixedly connected with the lower surface of the bottom plate, and the telescopic end is fixedly connected with the upper end face of the connecting plate 11; the back surface of the chair back is also embedded with a storage battery, the upper end surface of the chair back is also provided with a first electric push rod adjusting button 14 and a second electric push rod adjusting button 15, the first electric push rod 2 is electrically connected with the storage battery through the first electric push rod adjusting button 14, and the second electric push rod 12 is electrically connected with the storage battery through the second electric push rod adjusting button 15; during manufacturing, as shown in fig. 1, the guide sleeve 4 can slide downwards without obstacles, and even the universal wheel 8 can be accommodated in the guide sleeve 4; the electric push rod used in the novel structure has no special type limitation as long as the functions of the novel structure can be realized;

the bottom end surface of the supporting block 9 is provided with a plurality of miniature suckers;

the number of the claw toes of the supporting claw 5 is 4;

the claw toes are divided into a front group and a rear group, each group is provided with 2 claw toes, and the connecting line of the middle points of the 2 claw toes in any group is vertical to the front and rear direction of the bottom plate.

The use principle of the embodiment is as follows:

when climbing is not needed, the fortune horse wheel 6 is adjusted to be in a supporting mode, when a user needs to get off the wheelchair, an attendant presses the first electric push rod adjusting button 14 and the second electric push rod adjusting button 15, the first electric push rod 2 and the second electric push rod 12 extend, the supporting position of the fortune horse wheel 6 is in contact with the ground, the wheelchair is fixed, and the user can safely get off the wheelchair; when the wheelchair needs to be seated, the wheelchair is fixed, after a user sits, the accompanying person can press the first electric push rod adjusting button 14 and the second electric push rod adjusting button 15 again, the first electric push rod 2 and the second electric push rod 12 contract, the horse wheel 6 is separated from the ground, and the wheelchair can freely walk under the pushing action.

When climbing is needed, the rocking wheel 6 is adjusted to be in a walking mode, for example, in a downhill state, in order to prevent the wheelchair from excessively leaning forward, the first electric push rod adjusting button 14 can be operated to extend the first electric push rod 2, move the guide sleeve 4 downwards, and lengthen 2 support legs positioned on the front side, so that the bottom plate is kept in a relatively horizontal position, thereby ensuring the safety of a user; if the support legs are in an upward slope state, the length of the 2 rear support legs is adjusted, and the principle is as above.

Claims

1. A safety wheelchair characterized by: comprises a bottom plate, a chair back fixedly connected with the rear end of the upper surface of the bottom plate, handrails fixedly arranged on two sides of the upper surface of the bottom plate and a supporting mechanism, wherein the supporting mechanism comprises supporting legs fixedly arranged at four corners of the lower surface of the bottom plate and safety supporting rods positioned in the middle parts of two sides of the lower surface of the bottom plate, universal wheels are arranged at the bottom ends of the supporting legs, each safety supporting rod comprises a sliding sleeve arranged along the vertical direction, the upper end of each sliding sleeve is fixedly connected with the lower surface of each handrail, the lower end of each sliding sleeve penetrates through the bottom plate and extends downwards, the lower end of each sliding sleeve is higher than the bottom end of each universal wheel, a sliding rod is further connected in the sliding sleeve in a sliding manner, the top end of each sliding rod is connected with a supporting rod, a handle is arranged on the side face, far away from the direction of the bottom plate, the side wall of the supporting rod is fixedly connected with a spring pin, the side wall of the sliding sleeve above the spring pin is provided with an upper pin hole, the side wall of the sliding sleeve below the spring pin is provided with a lower pin hole, the bottom end face of the sliding rod is fixedly connected with a supporting block through a connecting rod, the supporting block is positioned on the outer side of the lower end opening of the sliding sleeve, when the spring pin is clamped in the upper pin hole, the height of the bottom end face of the supporting block is higher than that of the bottom end of the universal wheel, and when the spring pin is clamped in the lower pin hole, the height of the bottom end face of the supporting block is lower than or equal to that of the bottom end of the universal wheel.

2. A safety wheelchair in accordance with claim 1, wherein: the supporting leg comprises a guide pillar and a guide sleeve which is connected to the outer surface of the guide pillar in a sliding manner, the top end surface of the guide pillar is fixedly connected with the lower end surface of the bottom plate, the universal wheel is fixedly connected with the bottom end surface of the guide pillar, the lower end of the outer surface of the side wall of the guide sleeve is also fixedly connected with a supporting claw, and the bottom end of the supporting claw is provided with a horse wheel; connecting plates are fixedly connected between the guide sleeves of the 2 supporting legs positioned on the front side or the rear side respectively, a first electric push rod is further arranged at the center of the upper end face of the connecting plate positioned on the front side, the fixed end of the first electric push rod is fixedly connected with the lower surface of the bottom plate, the telescopic end is fixedly connected with the upper end face of the connecting plate, a second electric push rod is further arranged at the center of the upper end face of the connecting plate positioned on the rear side, the fixed end of the second electric push rod is fixedly connected with the lower surface of the bottom plate, and the telescopic end is fixedly connected with the upper end face of the connecting plate; the back of the chair rear surface still inlay and be equipped with the battery, back of the chair up end still be equipped with first electric putter adjustment button, second electric putter adjustment button, first electric putter pass through first electric putter adjustment button and battery electric connection, second electric putter pass through second electric putter adjustment button and battery electric connection.

3. A safety wheelchair as claimed in any one of claims 1 or 2, wherein: and the bottom end surface of the supporting block is provided with an anti-skid block.

4. A safety wheelchair as claimed in any one of claims 1 or 2, wherein: the bottom end face of the supporting block is provided with a plurality of miniature suckers.

5. A safety wheelchair as claimed in any one of claims 1 or 2, wherein: the spring catch includes that one end fixed connection is in the sleeve of the lateral wall surface of branch, telescopic inner wall surface still sliding connection have the round pin post, the bottom face of round pin post still be equipped with the spring, the one end and the outer wall fixed surface that branch lie in the sleeve be connected, the other end and the bottom face fixed connection of round pin post, the top face of round pin post and the inner wall surface sliding connection of sliding sleeve, when the round pin post slided to last pinhole or lower pinhole, the round pin post was extruded by the spring and is gone up the pinhole or in the pinhole down.

6. A safety wheelchair in accordance with claim 2, wherein: the number of the toes of the supporting claw is 4.

7. A safety wheelchair in accordance with claim 6, wherein: the claw toes are divided into a front group and a rear group, each group is provided with 2 claw toes, and the connecting line of the middle points of the 2 claw toes in any group is vertical to the front and rear direction of the bottom plate.