CN213283872U - Wheelchair with power assisting device - Google Patents

Abstract

A wheelchair with a power assisting device comprises a frame, a movable seat and a fixing device, and is characterized in that the frame is provided with the power assisting device for helping disabled and semi-disabled persons to stand up or sit down; the power assisting device comprises a power device and a power assisting bracket; the power-assisted support is a lever structure and comprises a lever and an upright rod, wherein one end of the lever is arranged as a fulcrum, and the other end of the lever is provided with the upright rod. The movable seat can be separated from the frame and independently used as a seat to realize movement. The fixing device is used for fixing the movable seat on the frame. The invention has the advantages of reducing the labor intensity of the wait staff, along with simple structure and convenient operation.

Description

Wheelchair with power assisting device

Technical Field

The invention relates to a wheelchair.

Background

Incapacitated and semi-incapacitated people mainly rely on a wheelchair to realize the movement of the body. However, for a long time, they need to repeatedly switch positions among wheelchairs, beds, potty chairs and the like, and each time the positions are switched, the standing and sitting actions need to be completed. At present, incapacitating and semi-incapacitating personnel finish the actions of standing up and sitting down by mainly relying on the help of wait-seeking personnel, which is physical labor with great intensity for the wait-seeking personnel; if the physical power of the wait-taker is not able to support this intensity of labor, more wait-takers need to be hired, which also places a greater economic burden on the patient's home.

Disclosure of Invention

The invention aims to provide a wheelchair with a power assisting device to help disabled and semi-disabled people to stand up and sit down and reduce the labor intensity of wait-keeping personnel.

The purpose of the invention can be realized by the following technical scheme:

a wheelchair with a power assisting device comprises a frame, a movable seat and a fixing device, wherein the power assisting device is arranged on the frame and is used for helping disabled and semi-disabled persons to stand up or sit down; the power assisting device comprises a power device and a power assisting bracket; the power-assisted support is a lever structure and comprises a lever and an upright rod, wherein one end of the lever is arranged as a fulcrum, and the other end of the lever is provided with the upright rod.

The movable seat comprises a seat surface, a leg frame and a movable wheel, and can be separated from the frame and independently used as a seat to realize movement.

The upright post of the power-assisted bracket realizes the standing or sitting of the power-assisted disabled person and the semi-disabled person by turning the upright post of the power-assisted bracket forward and backward by a certain angle.

The fixing device is used for fixing the movable seat and the frame together by lifting the height of the movable seat.

The frame is provided with a movable extension rod.

The invention has the advantages that: firstly, the labor intensity of the wait staff can be reduced; secondly, the structure is simple; thirdly, the operation is convenient.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a side view of the structure of fig. 1.

Fig. 3 is a schematic top view of the structure of fig. 1.

Fig. 4 is a schematic structural diagram of a movable seat according to an embodiment of the invention.

Fig. 5 is a side view of the structure of fig. 4.

Fig. 6 is a schematic top view of the structure of fig. 4.

Fig. 7 is a schematic structural diagram of the power-assisted harness.

Wherein: 1-assistance support upright stanchion, 2-assistance lever, 3-assistance lever fulcrum fixed support, 4-assistance lever fulcrum fixed shaft, 5-assistance lever connecting cross rod, 6-electric push rod, 7-electric push rod support rod, 8-electric push rod fixed support, 9-electric push rod fixed shaft, 10-electric push rod fixed support, 11-electric push rod fixed shaft, 12-sling hook, 13-frame left bottom cross rod, 14-frame right bottom cross rod, 15-frame left upper cross rod, 16-frame right upper cross rod, 17-frame front end bottom cross rod, 18-frame front end upper cross rod, 19-frame rear end bottom cross rod, 20-frame rear end upper cross rod, 21-frame left front upright stanchion, 22-frame left rear upright stanchion, 23-frame right front upright stanchion, 24-frame right rear upright stanchion, 25-wheel, 26-wheel shaft, 27-guide wheel, 28-extension rod, 29-extension rod rotating shaft, 30-extension rod moving wheel, 31-fixed nut, 32-left side supporting rod, 33-right side supporting rod, 34-left and right supporting rod connecting cross rod, 35-left side bracket, 36-right side bracket, 37-left and right bracket rear connecting cross rod, 38-left and right bracket front connecting cross rod, 39-bracket lifting connecting rod, 40-connecting rotating shaft, 41-fixed stop rod, 42-crank vertical rod, 43-crank, 44-screw rod seat, 45-screw rod, 46-shaft sleeve module, 47-shaft sleeve module rotating shaft, 48-screw rod through hole, 49-shaft sleeve module support, 50-nut module, 51-nut module rotating shaft, 52-screw hole, 53-nut module support, 54-chair surface, 55-handrail, 56-left side leg support, 57-right side leg support, 58-backrest, 59-connecting cross rod I, 60-connecting cross rod II, 61-connecting cross rod (c), 62-connecting cross rod (c), 63-seat moving wheel, 64-arm ring, 65-arm belt, 66-adhesive belt strip, 67-chest belt, 68-chest belt buckle, 69-button hole, 70-hook ring and 71-connecting belt.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

A wheelchair with a power assisting device comprises the power assisting device, a frame, a movable seat, a fixing device and a power assisting hanging strip.

Referring to fig. 1, 2, and 3: the power assisting device is composed of a power assisting support upright rod 1, a power assisting lever 2, a power assisting lever connecting cross rod 5, an electric push rod 6 and a hanging strip hook 12. One end of the power-assisted lever 2 is arranged on an upper cross bar 18 at the front end of the frame through a power-assisted lever fulcrum fixing support 3 and a power-assisted lever fulcrum fixing shaft 4, a power-assisted support upright rod 1 is fixed at the other end of the power-assisted lever 2, the power-assisted support upright rod 1 and the power-assisted lever 2 jointly form a lever structure, and a sling hook 12 is arranged on the power-assisted support upright rod 1 to form a resistance action point of the lever structure. The structure design can be better matched with the structure of a frame, so that the power-assisted lever 2 and the power-assisted support upright stanchion 1 are more consistent with a chair seat and a backrest, and more importantly, the rising and falling curve of the sling hook 12 can be optimized, so that the curve is more consistent with the movement track of people in standing or sitting. The electric push rod support rod 7 is fixed through a bottom cross rod 17 at the front end of the frame and an upper cross rod 18 at the front end of the frame, and the electric push rod 6 is arranged between the frame and a power action point of the power assisting lever 2 through the electric push rod support rod 7, an electric push rod fixing support I8, an electric push rod fixing shaft I9, an electric push rod fixing support II 10 and an electric push rod fixing shaft II 11 and used for providing power for the power assisting lever 2 by depending on the frame. Through the structure, the booster lever 2 and the booster bracket upright stanchion 1 jointly form a lever structure, and the booster lever fulcrum fixed shaft 4 is taken as a circle center, and the booster bracket upright stanchion 1 can be turned forward and backward by a certain angle towards the rear part of the frame through the extension and retraction of the electric push rod 6; when the power-assisted support upright stanchion 1 overturns backwards and forwards and falls down, the height of the sling hook 12 arranged on the power-assisted support upright stanchion 1 is gradually reduced, so that the power-assisted sling is sleeved on the body of a seated patient; when the power-assisted support upright stanchion 1 is reversely turned and folded, the sling hook 12 gradually lifts up along with the upright stanchion, and the lifting process is the process of helping a seated patient to slowly stand up through the power-assisted sling. Otherwise, the patient can be helped to slowly sit down from a standing state.

The frame comprises a frame left bottom cross rod 13, a frame right bottom cross rod 14, a frame left upper cross rod 15, a frame right upper cross rod 16, a frame front end bottom cross rod 17, a frame front end upper cross rod 18, a frame rear end bottom cross rod 19, a frame rear end upper cross rod 20, a frame left front upright rod 21, a frame left rear upright rod 22, a frame right front upright rod 23, a frame right rear upright rod 24, wheels 25, wheel axles 26 and guide wheels 27, an extension rod 28, an extension rod rotating shaft 29 and an extension rod moving wheel 30. The frame left bottom cross rod 13, the frame right bottom cross rod 14, the frame left upper cross rod 15, the frame right upper cross rod 16, the frame front end bottom cross rod 17, the frame front end upper cross rod 18, the frame rear end bottom cross rod 19, the frame rear end upper cross rod 20, the frame left front upright post 21, the frame left rear upright post 22, the frame right front upright post 23 and the frame right rear upright post 24 are welded together according to corresponding positions to form a basic framework of the frame; the wheels 25 are respectively fixed on the left rear upright post 22 and the right rear upright post 24 of the frame through wheel shafts 26 to form wheels on two sides; the guide wheels 27 are respectively fixed at the front ends of the left bottom cross rod 13 and the right bottom cross rod 14 of the frame and correspond to the wheels on the two sides; the extension rod 28 is respectively fixed at the rear ends of the frame left bottom cross rod 13 and the frame right bottom cross rod 14 through an extension rod rotating shaft 29 and a fixing nut 31; when the extension rod 28 needs to be unfolded, the extension rod 28 is rotated 180 degrees around the extension rod rotating shaft 29, so that the left frame bottom cross rod 13 and the right frame bottom cross rod 14 are respectively extended, and the extension rod moving wheel 30 is grounded and becomes a fulcrum of the extension rod 28 after being extended, thereby improving the stress structure of the whole frame. When the extension rod 28 is not needed to function, the extension rod 28 can be retracted after being reversely rotated for 180 degrees, and the landing positions of the extension rod moving wheel 30 and the wheel 25 are kept at the same latitude, so that the moving of the wheelchair is not influenced, and the backward dynamic adjustment of the inclination angle of the wheelchair is not influenced.

The fixing device is arranged on the frame and used for fixing the movable seat on the frame, the movable seat and the frame are fixed together in a mode of lifting the height of the movable seat, the fixing purpose can be achieved, and the wheels of the movable seat can be separated from the ground, so that the functions of the wheels and the guide wheels of the frame are prevented from being influenced. The fixing device comprises a left side supporting rod 32, a right side supporting rod 33, a left and right supporting rod connecting cross rod 34, a left side bracket 35, a right side bracket 36, a left and right bracket rear connecting cross rod 37, a left and right bracket front connecting cross rod 38, a bracket lifting connecting rod 39, a connecting rotating shaft 40, a fixing stop rod 41, a crank upright rod 42, a crank 43, a screw rod seat 44, a screw rod 45, a shaft sleeve module 46, a shaft sleeve module rotating shaft 47, a screw rod through hole 48, a shaft sleeve module support 49, a nut module 50, a nut module rotating shaft 51, a screw hole 52 and a nut module support 53. The left side support rod 32 and the right side support rod 33 are respectively arranged on the upper layer cross rod 18 at the front end of the frame and the upper layer cross rod 20 at the rear end of the frame, and are provided with left and right support rod connecting cross rods 34 for supporting the crank vertical rods 42; the left bracket 35 and the right bracket 36 are connected into a whole through a left bracket rear connecting cross rod 37 and a left bracket front connecting cross rod 38, and are connected with the corresponding left supporting rod 32 and right supporting rod 33 through a bracket lifting connecting rod 39 and a connecting rotating shaft 40; the bracket lifting connecting rods 39 are divided into 2 groups according to the front and rear positions, each group comprises 2, and the left side and the right side of each group are respectively 1; two ends of each group of bracket lifting connecting rods are respectively connected with the supporting rod and the bracket through a connecting rotating shaft 40; the bracket lifting connecting rod 39 is provided with a fixed stop rod 41 for fixing the movable seat; the shaft sleeve module bracket 49 is strip-shaped, the upper end of the shaft sleeve module bracket 49 is provided with a rotating shaft hole for supporting a shaft sleeve module rotating shaft 47, the lower end of the shaft sleeve module bracket is connected with the crank upright rod 42, and the shaft sleeve module 46 is connected with the shaft sleeve module bracket 49 through the shaft sleeve module rotating shaft 47 and fixed on the crank upright rod 42, so that the shaft sleeve module 46 can realize angle adjustment through the shaft sleeve module rotating shaft 47; the nut module bracket 53 is in a right-angle shape, one surface of the nut module bracket is provided with a rotating shaft hole for supporting the nut module rotating shaft 51, the other surface of the nut module bracket is connected with the left and right bracket rear connecting cross rods 37, and the nut module 50 is connected with the nut module bracket 53 through the nut module rotating shaft 51 and fixed on the left and right bracket rear connecting cross rods 37, so that the nut module 50 can realize angle adjustment through the nut module rotating shaft 51; the front section of the screw rod 45 is a screw, the rear section is a rotating shaft, the rear section of the screw rod 45 is connected with the screw rod seat 44 into a whole, the hand crank 43 is fixed on the screw rod seat 44, and the screw rod 45 penetrates through the screw rod through hole 48 of the shaft sleeve module 46 to be connected with the screw hole 52 of the nut module 50.

Because the shaft sleeve module 46 and the nut module 50 are respectively fixed on the crank upright rod 42 and the left and right bracket rear connecting cross rod 37, and the screw rod seat 44 cannot pass through the screw rod through hole 48 of the shaft sleeve module 46, the rocking handle 43 can realize synchronous lifting of the left bracket 35 and the right bracket 36 through the bracket lifting connecting rod 39 and the connecting rotating shaft 40, when the rocking handle 43 makes the nut module 50 approach the shaft sleeve module 46 through the screw rod 45, the left bracket 35 and the right bracket 36 are lifted upwards, otherwise, the falling is realized.

Since the fixed bar 41 is fixed to the bracket lifting link 39, in the process of achieving the lifting, the fixing and releasing of the movable seat will be achieved along with the change of the angle of the bracket lifting link 39: when the fixed stop lever 41 is erected, the height of the fixed stop lever exceeds the plane formed by the left bracket 35 and the right bracket 36, so that the movable seat carried by the left bracket 35 and the right bracket 36 is blocked and prevented from sliding forwards; on the contrary, when the fixed blocking rod 41 tends to be horizontal along with the change of the angle of the bracket lifting connecting rod 39 and the height of the fixed blocking rod is lower than the plane formed by the left bracket 35 and the right bracket 36, the movable seat supported by the left bracket 35 and the right bracket 36 cannot be blocked from sliding forwards, and the movable seat can be released.

Referring to fig. 4, 5, and 6: the movable seat is composed of a seat surface 54, an armrest 55, a left leg 56, a right leg 57, a backrest 58, a connecting crossbar (59), a connecting crossbar (60), a connecting crossbar (61), a connecting crossbar (62) and a seat moving wheel 63. The left leg 56 and the right leg 57 have the same shape and are in a flat U shape so as to be pushed into the frame; the connecting cross bar (59), the connecting cross bar (60), the connecting cross bar (61) and the connecting cross bar (62) are divided into an upper group and a lower group and are used for fixing the left leg frame (56) and the right leg frame (57) into a whole, and 2 seat moving wheels (63) are respectively arranged on the left leg frame (56) and the right leg frame (57) so as to realize the movement of the seat; the chair surface 54 and the armrests 55 are fixed on a connecting cross bar I59 and a connecting cross bar II 60; a backrest 58 is configured on the arm rest 55 and the left and right side legs 56, 57.

The seat is arranged to be movable, and is an important premise for assisting disabled and semi-disabled persons to transfer from a wheelchair to other places or from other places to the wheelchair.

Referring to fig. 7: the power-assisted hanging belt is composed of an arm ring 64, an arm belt 65, an adhesive tape strip 66, a chest belt 67, a chest belt buckle 68, a button hole 69, a hook ring 70 and a connecting belt 71. The arm rings 64 are sewed with a hook ring 70 and a connecting belt 71, the chest belt 67 connects the 2 arm rings 64 together through the connecting belt 71, the arm belt 65 is sewed on the connecting belt 71, and the adhesive tape strip 66 is sewed on the arm belt 65.

The working process of the embodiment of the invention is described below by taking the disabled and semi-disabled persons as examples to move from the potty chair to the wheelchair.

2 arm rings 64 of the power-assisted sling are respectively sleeved under armpits of incapacitated and semi-incapacitated people, and then a proper button hole 69 is selected to be buckled into a chest buckle 68 to form a closed loop surrounding the chest of the incapacitated and semi-incapacitated people so as to ensure that the 2 arm rings 64 do not displace; the arm straps 65 are then wrapped around the two side arms of the disabled and disabled persons, respectively, and held by the adhesive tape strips 66 to ensure that the arms of the disabled and disabled persons are always held down, avoiding that in the case of an upward force, the arms are lifted up, so that the arm loops 64 slip off from the armpits to cause injury to the disabled and disabled persons.

The embodiment of the invention is pushed close to the potty chair, and the extension rod 28 is unfolded to extend the stress fulcrum of the frame; the power-assisted support upright stanchion 1 is overturned towards the back of the backrest 58 and falls down through the electric push rod 6 and the power-assisted lever 2, and the sling hook 12 is hooked on a hook ring 70 of the power-assisted sling; then, under the action of the electric push rod 6, the power-assisted support upright rod 1 is reversely retracted, and simultaneously, disabled and semi-disabled persons are slowly lifted by the power-assisted hanging strip, so that the disabled and semi-disabled persons are helped to stand up; after the power-assisted support upright stanchion 1 stops moving, disabled and semi-disabled persons can still be helped to keep standing; when disabled and semi-disabled persons keep standing, the potty chair is moved away, and then the movable seat provided by the embodiment of the invention is released from the frame and moved to a corresponding position; the upright rod 1 of the power-assisted bracket is turned over towards the back of the backrest and falls down, so that disabled and semi-disabled persons can be helped to sit slowly; after sitting, the harness hook 12 is removed from the loop 70 of the power-assisted harness, and then the movable seat is moved to the frame; the hand crank 43 is rotated to lift the movable seat under the action of the left bracket 35 and the right bracket 36, when the movable seat is lifted to the right, the fixed stop rod 41 is vertically erected along with the rotation of the bracket lifting connecting rod 39 and respectively blocks the connecting cross rod (59) and the connecting cross rod (60) of the movable seat, so that the purpose of fixing the movable seat is achieved, and the movable seat is kept through the screw rod 45 and the nut module 50, so that the transfer of incapacitated and semi-incapacitated personnel from the commode chair to the wheelchair is completed. On the contrary, if the wheelchair is moved to the commode chair from the wheelchair, the movable seat is firstly released from the frame, the disabled and semi-disabled persons carried by the movable seat move to the back of the embodiment of the invention, and then the process is completed in reverse. And so on.

When helping disabled and semi-disabled persons to stand, the disabled and semi-disabled persons can walk and exercise under the assistance of the assistance support upright stanchion 1 by virtue of the embodiment of the invention, so that the functions of a walker are realized, namely, the assisted exercise can be realized, and the safety of the disabled and semi-disabled persons in the exercise can be ensured.

When the power-assisted support upright rod 1 is folded, the power-assisted support upright rod 1 is close to the backrest 58, so that a person pushing a wheelchair can conveniently operate the wheelchair.

The invention has the following advantages: firstly, the number and labor intensity of wait staff can be reduced, so that the family burden of incapacitated and semi-incapacitated staff is reduced; secondly, the structure is simple; thirdly, the operation is convenient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. All equivalent changes and modifications within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims (5)

1. A wheelchair with a power assisting device comprises a frame, a movable seat and a fixing device, and is characterized in that the frame is provided with the power assisting device for helping disabled and semi-disabled persons to stand up or sit down; the power assisting device comprises a power device and a power assisting bracket; the power-assisted support is a lever structure and comprises a lever and an upright rod, wherein one end of the lever is arranged as a fulcrum, and the other end of the lever is provided with the upright rod.

2. The powered wheelchair as claimed in claim 1, wherein the movable seat comprises a seat surface, legs and moving wheels, and the movable seat is capable of moving independently as a seat, separate from the frame.

3. The wheelchair with the power assisting device as claimed in claim 1, wherein the upright of the power assisting bracket is turned forward and backward at a certain angle to the rear of the frame to realize the standing or sitting of the disabled or semi-disabled person.

4. The wheelchair with a power assist device of claim 1 or 2, wherein the fixing means fixes the movable seat to the frame by raising the height of the movable seat.

5. A wheelchair with a power assist device according to claim 1 or 2, wherein the frame is provided with a movable extension bar.

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