CN113876500A

CN113876500A - Novel multifunctional wheelchair

Info

Publication number: CN113876500A
Application number: CN202110889180.3A
Authority: CN
Inventors: 袁亮; 梁斌
Original assignee: Beijing University of Chemical Technology
Current assignee: Beijing University of Chemical Technology
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-01-04

Abstract

The utility model provides a novel multifunctional wheelchair, includes base, front wheel link, rear wheel, bearing frame, driving motor, battery, back board, seat board bottom diaphragm, shank board, running-board, back frame, seat frame, shank frame, back pad, seat pad, leg guard, cross ball hinge, base electric putter, back board electric putter, shank board electric putter, control arm and control part, control part includes control rod and operating button to set up on right handrail. The invention has the advantages that: through the cooperation of a plurality of electric push rods, the wheelchair can complete the functions of sitting up, lying down, standing, turning left and right and the like, and patients or old people can independently control the completion of the functions, thereby reducing the workload of medical care personnel.

Description

Novel multifunctional wheelchair

Technical Field

The invention relates to medical care equipment, in particular to a novel multifunctional wheelchair.

Background

The old and the patient lying in bed for a long time can not obtain the supply of arterial blood for a long time due to the fact that the body weight of the old and the patient presses tissues at a certain position for a long time, so that a series of changes of tissue ischemia, swelling, ulceration, necrosis and the like are caused, and the pressure sore is medically known. Therefore, the following points should be especially noted for bedridden patients, especially the elderly:

first, the patient is often repositioned to relieve local tissue compression to prevent pressure sores. Too long time in bed can cause unsmooth sputum excretion and the occurrence of falling pneumonia. Therefore, the patient is constantly changing posture. The body positions include supine position, lateral position, half-seated position, end-seated position, prone position, head-low and foot-high position, head-high and foot-low position, etc. Different body positions have different effects. Patients with falling pneumonia can adopt a head-lower and foot-higher position to facilitate drainage of lung endocrine; if bedsore of buttocks occurs, a prone position or a lateral position can be adopted; venous thrombosis, muscular atrophy and hypomyodynamia should be frequently changed into leg posture, and leg muscles should be properly activated, which is favorable for blood circulation.

In addition, the long-term bedridden patients need to be physiologically nursed and psychologically persuaded, and the caregivers have a feelings of ineffectiveness and guilt after taking care of the insides of the patients for a long time. The patient is easy to feel suffocated after lying in bed for a long time, so that the emotional depression is caused, and the physiological health is influenced. Therefore, the patient should be carried to outdoor activities as far as possible under the premise of permission of conditions, so that the purpose of pleasure is achieved, and the health of the patient is greatly facilitated.

The series of nursing difficulties are great and generally can be completed by two to three medical staff. As China is the country with the largest population base in the world, the gap of nursing talents is continuously expanded along with the development of economic society and the gradual increase of aging. Under the condition, more and more old people and patients cannot be nursed in time, and the phenomenon of chronic diseases is more and more serious. Meanwhile, the existing nursing products have fewer functions and are difficult to meet the actual requirements.

Disclosure of Invention

Aiming at the problems, the invention provides a novel multifunctional wheelchair which can meet the self-care of patients and old people to the greatest extent, and can enable the patients and the old people to independently complete the nursing functions of sitting up, lying down, standing and turning over left and right under the control of the wheelchair, thereby lightening the burden of medical care personnel.

The invention adopts the following technical scheme:

the utility model provides a novel multifunctional wheelchair, includes base, front wheel link, rear wheel, bearing housing, driving motor, battery, back board, seat board bottom diaphragm, shank board, running-board, back frame, seat frame, shank frame, back pad, seat pad, leg guard, cross ball hinge, base electric putter, back board electric putter, shank board electric putter, control arm and control part about, control part includes control rod and button to set up on right handrail. The method is characterized in that: the two front wheels are universal wheels and are fixed with the base through the front wheel connecting frame; the two rear wheels are driving wheels and are fixed with the base through a bearing seat; the driving motor and the battery are fixed on the base, and a driving motor shaft is connected with the rear wheel shaft; the backrest frame, the seat frame and the shank frame are respectively hinged and form a rectangular bed frame when horizontally unfolded; the backrest plate, the seat plate and the shank plate are respectively fixed at the bottoms of the backrest frame, the seat frame and the shank frame; the backrest cushion, the seat cushion and the leg protector are respectively fixed on the upper parts of the backrest frame, the seat frame and the shank frame; the pedal is fixed on the lower leg frame; one ends of the four base electric push rods are respectively fixed on the bases, and the other ends of the four base electric push rods are respectively hinged with the seat plate through a cross ball hinge; the backrest plate electric push rod is respectively connected with the backrest plate and a transverse plate at the bottom of the seat plate through hinges; the electric push rod of the shank plate is respectively connected with the shank plate and the transverse plate at the bottom of the seat plate through hinges; the left handrail and the right handrail are respectively hinged on two sides of the backrest frame and can be fixed after rotating up and down; the control part comprises an operating lever and an operating button and is arranged on the right handrail, wherein the operating lever is used for controlling the forward movement, the backward movement, the left turning and the right turning of the wheelchair, and the operating button is used for controlling the switching of the wheelchair on the sitting up, the lying down, the standing and the left and right side turning; the control part and each electric push rod are respectively connected with the battery through leads.

In consideration of the safety of the multifunctional wheelchair and other problems, the requirements of the strength and the rigidity of each part must be ensured. The invention carries out finite element analysis on the whole bearing of the wheelchair and each function realization scene one by one, thereby ensuring the reasonability, safety and stability of each mechanism and each part of the wheelchair.

The invention has the advantages that: the electric drive is used, and the patient and the old can independently complete the nursing functions of sitting up, lying down, standing and turning over left and right under the control of the patient and the old under the coordination of a plurality of electric push rods, thereby reducing the burden of medical care personnel.

Drawings

Fig. 1 is a structural schematic diagram of the multifunctional wheelchair in a sitting state.

Fig. 2 is a schematic structural view of the multifunctional wheelchair in a lying state.

Fig. 3 is a schematic view of the multifunctional wheelchair in a lying state.

Fig. 4 is a structural schematic diagram of the multifunctional wheelchair in a right side-turning state.

Fig. 5 is a structural schematic diagram of the multifunctional wheelchair in a left side-turning state.

Fig. 6 is a structural diagram of the multifunctional wheelchair in a standing state.

Fig. 7 is a partial structure schematic view of the chassis part of the multifunctional wheelchair.

Fig. 8 is a partial structure diagram of the back plate part of the multifunctional wheel chair.

In the figure: 1. the novel chair comprises a base, 2 parts of front wheels, 3 parts of front wheel connecting frames, 4 parts of rear wheels, 5 parts of bearing seats, 6 parts of driving motors, 7 parts of batteries, 8 parts of a backrest plate, 9 parts of a seat plate, 10 parts of a seat plate bottom transverse plate, 11 parts of a shank plate, 12 parts of pedals, 13 parts of the backrest frame, 14 parts of the seat frame, 15 parts of the shank frame, 16 parts of a backrest cushion, 17 parts of a seat cushion, 18 parts of a leg guard, 19 parts of a cross ball hinge, 20 parts of base electric push rods, 21 parts of backrest plate electric push rods, 22 parts of shank plate electric push rods, 23 parts of left handrails, 24 parts of right handrails, 25 parts of operating levers and 26 parts of operating buttons.

Detailed Description

The invention is explained in detail below with reference to the figures and examples:

a novel multifunctional wheelchair comprises a base 1, front wheels 2, a front wheel connecting frame 3, rear wheels 4, a bearing seat 5, a driving motor 6, a battery 7, a backrest plate 8, a seat plate 9, a seat plate bottom transverse plate 10, a shank plate 11, a pedal plate 12, a backrest frame 13, a seat frame 14, a shank frame 15, a backrest cushion 16, a seat cushion 17, a leg guard 18, a cross ball hinge 19, a base electric push rod 20, a backrest plate electric push rod 21, a shank plate electric push rod 22, a left armrest 23, a right armrest 24 and a control part, wherein the control part comprises an operating rod 25 and an operating button 26 and is arranged on the right armrest 24. The method is characterized in that: the two front wheels 2 are universal wheels and are fixed with the base 1 through a front wheel connecting frame 3; the two rear wheels 4 are driving wheels and are fixed with the base 1 through a bearing seat 5; the driving motor 6 and the battery 7 are both fixed on the base 1, and the shaft of the driving motor is connected with the rear wheel shaft; the backrest frame 13, the seat frame 14 and the shank frame 15 are respectively hinged and form a rectangular bed frame when horizontally unfolded; the backrest plate 8, the seat plate 9 and the shank plate 11 are respectively fixed at the bottoms of the backrest frame 13, the seat frame 14 and the shank frame 15; the backrest cushion 16, the seat cushion 17 and the leg protector 18 are respectively fixed on the upper parts of the backrest frame 13, the seat frame 14 and the shank frame 15; a seat plate bottom transverse plate 10 is fixed at the bottom of the seat plate 9; the pedal 12 is fixed on the lower leg frame 15; one ends of the four base electric push rods 20 are respectively fixed on the base 1, and the other ends of the four base electric push rods are respectively hinged with the seat plate 9 through a cross ball hinge 19; the backrest plate electric push rod 21 is respectively connected with the backrest plate 8 and the seat plate bottom transverse plate 10 through hinges; the electric push rod 22 of the shank plate is respectively connected with the shank plate 11 and the transverse plate 10 at the bottom of the seat plate through hinges; the left armrest 23 and the right armrest 24 are respectively hinged on two sides of the backrest frame 13 and can rotate up and down and then are fixed; the control part comprises an operating rod 25 and operating buttons 26 and is arranged on the right handrail 24, wherein the operating rod 25 is used for controlling the forward movement, the backward movement, the left turning and the right turning of the wheelchair, and the operating buttons are used for controlling the switching of the sitting up, the lying down, the standing and the left and right side turning of the wheelchair; the control part and each electric push rod are respectively connected with a battery 7 through leads.

The practical use condition of the multifunctional wheelchair is as follows:

(1) realization of basic functions of wheelchair

The front wheel 2 of the wheelchair is a universal wheel, and the rear wheel 4 is driven by a driving motor 6, so that the wheelchair can freely move. The left armrest 23 and the right armrest 24 are respectively arranged on two sides of the wheelchair backrest frame 13, and can be fixed after rotating up and down. The control part comprises an operating rod 25 and an operating button 26 and is arranged on the right armrest 24, wherein the operating rod 25 is used for controlling the forward movement, the backward movement, the left turning and the right turning of the wheelchair, the operating button 26 is used for controlling the switching of the sitting up, the lying down, the standing and the left and right side turning of the wheelchair, and the control part and each electric push rod are respectively connected with the battery 7 through leads.

(2) Implementation of lying action

In the wheelchair state, the push button 26 is operated to contract the backrest plate electric push rod 21 and extend the lower leg plate electric push rod 22, so that the backrest frame 13, the seat frame 14 and the lower leg frame 15 are parallel to the ground, and the lying operation can be realized. At this time, the wheelchair is locked and cannot move freely unless the operating lever 25 is operated. The screw shaft of the base electric push rod 20 can be extended upward or shortened downward by operating the push button 26, thereby raising or lowering the back frame 13, the seat frame 14, and the lower leg frame 15. The left handrail 23 and the right handrail 24 can rotate backwards and are fixed, and at the moment, the left and right shelters of the backrest cushion 16, the seat cushion 17 and the leg guard 18 are reduced, so that the transfer of patients or old people can be realized.

(3) Realization of left-right rollover action

The wheelchair is first in a lying position. When the wheelchair turns to the right, the screw rods of the two base electric push rods 20 on the left side of the wheelchair are extended through the operating button 26, the screw rods of the two base electric push rods 20 on the right side are fixed, the screw rods of the four base electric push rods 20 are arranged in the limiting grooves on the right side of the cross ball hinge 19, and the backrest frame 13, the seat frame 14, the shank frame 15, the backrest cushion 16, the seat cushion 17 and the leg protector 18 fixed on the backrest frame 13, the seat frame 14 and the shank frame can turn to the right together. When the wheelchair turns left, the screw rods of the two base electric push rods 20 on the right side of the wheelchair are extended through the operating button 26, while the screw rods of the two base electric push rods 20 on the left side are fixed, at the moment, the screw rods of the four base electric push rods 20 are all arranged in the limit groove on the left side of the cross ball hinge 19, and the backrest frame 13, the seat frame 14 and the lower leg frame 15, as well as the backrest cushion 16, the seat cushion 17 and the leg guard 18 fixed on the backrest frame, the seat frame and the lower leg frame can turn left together.

(4) Implementation of standing movement

The wheelchair is first in a lying position. The standing action is realized by operating the button 26 to extend the screw rods of the two base electric push rods 20 at the rear side of the wheelchair, while the screw rods of the two base electric push rods 20 at the front side are fixed, at the moment, the screw rods of the four base electric push rods 20 are all arranged in the limiting groove at the front side of the cross ball hinge 19, and the backrest frame 13, the seat frame 14 and the shank frame 15, together with the backrest cushion 16, the seat cushion 17 and the leg guard 18 fixed thereon, can stand forwards. The user can place both hands on the left and right armrests and step on the pedals, and the wheelchair can assist the user to stand.

(5) Implementation of other actions

By operating the button 26, only the electric push rod 22 of the lower leg plate hinged on the transverse plate 10 at the bottom of the seat plate and the lower leg plate 11 is extended and contracted, so that the leg bending action can be realized, and the legs of the patient or the old can be bent and extended to obtain exercise. By operating the button 26, only the backrest electric push rod 21 hinged on the seat plate bottom cross plate 10 and the backrest plate 8 is extended and contracted, the backrest position can be adjusted, and the patient or the old can adjust the wheelchair to the most comfortable posture.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.

Claims

1. A novel multifunctional wheelchair comprises a base, front wheels, a front wheel connecting frame, rear wheels, a bearing seat, a driving motor, a battery, a backrest plate, a seat plate bottom transverse plate, a shank plate, a pedal plate, a backrest frame, a seat frame, a shank frame, a backrest cushion, a seat cushion, a leg guard, a cross ball hinge, a base electric push rod, a backrest plate electric push rod, a shank plate electric push rod, a left handrail, a right handrail and a control part, wherein the control part comprises an operating rod and an operating button and is arranged on the right handrail; the method is characterized in that: the two front wheels are universal wheels and are fixed with the base through a front wheel connecting frame; the two rear wheels are driving wheels and are fixed with the base through a bearing seat; the driving motor and the battery are fixed on the base, and a driving motor shaft is connected with the rear wheel shaft; the backrest frame, the seat frame and the shank frame are respectively hinged and form a rectangular bed frame when horizontally unfolded; the backrest plate, the seat plate and the shank plate are respectively fixed at the bottoms of the backrest frame, the seat frame and the shank frame; the backrest cushion, the seat cushion and the leg protector are respectively fixed on the upper parts of the backrest frame, the seat frame and the shank frame; the pedal is fixed on the lower leg frame; one ends of the four base electric push rods are respectively fixed on the bases, and the other ends of the four base electric push rods are respectively hinged with the seat plate through a cross ball hinge; the backrest plate electric push rod is respectively connected with the backrest plate and a transverse plate at the bottom of the seat plate through hinges; the electric push rod of the shank plate is respectively connected with the shank plate and the transverse plate at the bottom of the seat plate through hinges; the left handrail and the right handrail are respectively hinged on two sides of the backrest frame and can be fixed after rotating up and down; the control part comprises an operating lever and an operating button and is arranged on the right handrail, wherein the operating lever is used for controlling the forward movement, the backward movement, the left turning and the right turning of the wheelchair, and the operating button is used for controlling the switching of the wheelchair on sitting, lying, standing and left and right side turning; the control part and each electric push rod are respectively connected with the battery through leads.