CN111134973A

CN111134973A - Improved wheelchair

Info

Publication number: CN111134973A
Application number: CN202010032123.9A
Authority: CN
Inventors: 孙海鹰; 季晔; 尹丽伟; 马佳佳; 韩玉芹; 周倩倩; 吴甜
Original assignee: Second Military Medical University SMMU
Current assignee: Second Military Medical University SMMU
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-05-12

Abstract

The invention relates to an improved wheelchair, which comprises a wheelchair main body bracket, wherein a flat cushion, handrails which are respectively flat at two sides, a vertically arranged backrest, a pair of pushing handles on the backrest are arranged on the wheelchair main body bracket, wheels with brakes and foot supports are arranged below the wheelchair main body bracket, and the improved wheelchair also comprises two leg safety belts and two shoulder safety belts; one end of the leg safety belt is buckled into a safety belt clamping groove arranged beside the seat cushion, and the other end of the leg safety belt is fixed to the center of the upper surface of the seat cushion; one end of the shoulder safety belt is fixed on the front face of the backrest, and the other end of the shoulder safety belt is buckled into a safety belt clamping groove formed in the top of the back face of the backrest. The wheelchair has the beneficial effect that the use comfort of the wheelchair is improved on the basis of the integral design of the existing wheelchair.

Description

Improved wheelchair

Technical Field

The invention relates to the field of medical instruments, in particular to a medical multifunctional wheelchair.

Background

The wheelchair is an important mobile tool for home rehabilitation, turnover transportation, treatment and outing activities of wounded persons, patients and disabled persons. Not only satisfies the walking assistance of the disabled and the people who are inconvenient to move, but also more importantly facilitates the family members or the medical care personnel to move and take care of the patients, so that the patients can do physical exercise and participate in social activities by means of the wheelchair. At present, the medical wheelchair mainly comprises wheels, a brake, a chair seat, a cushion, a foot support, a backrest, armrests and the like, but has a plurality of potential safety hazards and inconveniences in use for severe patients, particularly patients with inflexible legs and feet. For example, the side-pull safety belt cannot completely fix the patient, and the patient is easy to slip downwards and forwards; the car is braked at the front part, and an attendant cannot brake in time in an emergency; the speed is fast and is not easy to control when going downhill; it is inconvenient to carry the common equipment (such as shielding equipment, transfusion needle, dining board, etc.), medicine, etc. These problems have greatly limited the range of available conventional wheelchairs.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and solve the problem of limited use in the existing wheelchair.

In order to achieve the purpose, the invention provides an improved wheelchair, which comprises a wheelchair main body bracket, wherein a flat cushion, handrails horizontally arranged on two sides, a vertically arranged backrest, a pair of pushing handles on the backrest are arranged on the wheelchair main body bracket, wheels with brakes and foot supports are arranged below the wheelchair main body bracket, and the improved wheelchair also comprises two leg safety belts and two shoulder safety belts; one end of the leg safety belt is buckled into a safety belt clamping groove arranged beside the seat cushion, and the other end of the leg safety belt is fixed to the center of the upper surface of the seat cushion; one end of the shoulder safety belt is fixed on the front face of the backrest, and the other end of the shoulder safety belt is buckled into a safety belt clamping groove formed in the top of the back face of the backrest.

The wheelchair main body support referred to herein is similar to a conventional wheelchair; similarly with the conventional wheelchair, the cushion is flatly placed on the wheelchair main body support, the armrests are parallelly fixed on the wheelchair main body support above the cushion, the backrest is arranged on the wheelchair main body support on one side of the cushion, the pushing handle is fixed on the wheelchair main body support above the backrest, the foot supports are arranged in front of and below the wheelchair main body support and are convenient for a patient to place, and the wheels are provided with brakes and are arranged below the wheelchair main body support.

The backrest can be inclined and upright on the wheelchair main body bracket, so that the patient can conveniently adjust a comfortable leaning posture.

The lower part of the wheel chair refers to the direction of the ground when the wheel chair is used; the side of the cushion refers to the edge positions of the cushion at the two sides of the patient when in use; the front of the backrest is the face that contacts the back of the patient when in use.

Preferably, the device also comprises a main U-shaped rod, an outer U-shaped rod, waterproof cloth and a plurality of U-shaped rods for supporting; the pushing handles on the two sides are oppositely provided with rotating shafts, and through holes are formed in the rotating shafts in the radial direction; the rotating shaft through holes on the two sides are respectively penetrated through the two sides of the main U-shaped rod in a sliding manner, and two end heads of the main U-shaped rod are correspondingly hinged with two end heads of the supporting U-shaped rod and two end heads of the outer U-shaped rod; the bottom side of the rod body of the main U-shaped rod is fixed with one side of the waterproof cloth, the rod body of the outer U-shaped rod is fixed by the other side of the waterproof cloth, and the rod body of the supporting U-shaped rod is uniformly and fixedly supported to the inner surface of the waterproof cloth.

The waterproof cloth is folded, unfolded and stored around the end of the main U-shaped rod, and the waterproof cloth coverage is adjusted by means of rotation of the main U-shaped rod on the rotating shaft and sliding of the main U-shaped rod in the through hole. The outer U-shaped rod and the supporting U-shaped rod can rotate around the end head of the outer U-shaped rod. When the waterproof cloth is completely unfolded, the waterproof cloth is straightened, one side of the waterproof cloth is fixed with the main U-shaped rod, the other side of the waterproof cloth is fixed with the outer U-shaped rod, and the middle belly position is supported by the rod body of the supporting U-shaped rod, so that a convex shell-shaped top covered by the waterproof cloth is formed.

Preferably, the main U-shaped rod, the supporting U-shaped rod and the outer U-shaped rod are formed by bending high-elasticity light metal rods.

The high elasticity light metal referred to herein is a general description of the choice of alloy materials, and those skilled in the art can derive several suitable alloy materials from the prior art according to the description, and commonly used high elasticity light metals such as alloys of Ni42CrTiAl, Ni43CrTiAl, Ni42 crtialmogu, and the like.

Preferably, the handrails on the two sides are respectively fixedly connected with a table plate and a transfusion rod.

The two sides referred to herein refer to the user's one side armrest to secure the table, and the other side armrest to secure the infusion rod.

Preferably, the infusion rod is a telescopic rod, the top of the infusion rod is provided with an infusion hook, and the bottom of the infusion rod is fixed beside the armrest.

Generally, the infusion rod is perpendicular to the cushion, and the adjacent telescopic sections of the telescopic rod penetrate through the holes correspondingly arranged through the pins to fix the telescopic amount.

Preferably, a nursing box is fixed at the bottom of the wheelchair main body support, and the opening position of the nursing box is arranged at the rear.

The rear direction referred to herein means a direction toward which the pedestrian is pushed. The nursing box is used for placing articles, is fixed below the cushion and is not contacted with the bottom surface, and the opening of the nursing box can be in the forms of extraction, cover plate, curtain and the like besides the conventional hole.

Preferably, the brake of the wheel is in the form of a disc brake.

Through the special arrangement of the safety belt, the patient can be effectively prevented from sliding forwards and downwards gradually, and can be smoothly fixed on the wheelchair without deflection or sliding.

The arrangement of the U-shaped rods and the waterproof cloth enables the waterproof cloth shielding area to move along the axial direction of the through hole, and the coverage area of the waterproof cloth is adjusted through the opening angle of the main U-shaped rods and the outer U-shaped rods. When the included angle between the main U-shaped rod and the outer U-shaped rod is minimum, the waterproof cloth is completely retracted. The main U-shaped rod can be parallel to the backrest by rotating the rotating shaft, and at the moment, the waterproof cloth can be hidden, so that the phenomenon that the sight is blocked by the waterproof cloth is avoided. When the nursing box is matched for use, the function of shielding the object curtain can be achieved.

The U-shaped rod is formed by bending a high-elasticity light metal rod, and the volume can be further compressed when the U-shaped rod is stored. Under the complete unfolding state, the instability caused by the heavy head and the light feet of the wheelchair can be avoided.

The desk plate, the transfusion rod and the armrests are matched, and the wheelchair is combined with all matching parts, so that the number of devices needing to be matched when the wheelchair is pushed is reduced.

The telescopic rod design of the transfusion rod enables the gravitational potential energy of transfusion to be conveniently adjusted. Meanwhile, when not in use, the utility model can be reduced to the minimum, avoiding collision.

The arrangement of the nursing box increases the storage space on the basis of not hindering the use of the wheelchair, and reduces the equipment needing to be matched when the wheelchair is pushed.

The mode of braking operation by adopting the disc brake is simpler and more labor-saving for nursing personnel, the speed can be conveniently controlled by the hand brake matched with the disc brake during downhill, and accidents are avoided

The invention has the advantages of improving the comfortable use range of the wheelchair and reducing the additional carrying of supporting facilities on the basis of the integral design of the existing wheelchair.

Drawings

FIG. 1 is a generally schematic view of an improved wheelchair in accordance with the present invention;

FIG. 2 is a rear elevational schematic view of an improved wheelchair in accordance with the present invention;

FIG. 3 is a top schematic view of an improved wheelchair in accordance with the present invention;

FIG. 4 is a schematic view of the improved waterproof cloth of the wheelchair of the present invention after being slid and unfolded;

wherein:

1-wheelchair main body support 2-cushion 3-armrest

4-backrest 5-pushing handle 6-brake

7-wheel 8-foot support 9-leg safety belt

10-shoulder harness 11-main U-bar 12-outer U-bar

13-waterproof cloth 14-U-shaped rod 15 for supporting-rotating shaft

16-table plate 17-transfusion rod 18-nursing box

Detailed Description

The invention is further described below with reference to the following figures and specific examples.

According to the embodiment of the improved wheelchair shown in fig. 1 to 4, the improved wheelchair comprises a wheelchair main body bracket 1, a flat cushion 2, armrests 3 which are respectively flat at two sides, a vertical backrest 4 and a pair of push handles 5 on the backrest are arranged on the wheelchair main body bracket 1, wheels 7 with brakes 6 and foot rests 8 are arranged below the wheelchair main body bracket 1, and two leg safety belts 9 and two shoulder safety belts 10 are further included; one end of the leg safety belt 9 is buckled into a safety belt clamping groove arranged beside the seat cushion 2, and the other end of the leg safety belt is fixed to the center of the upper surface of the seat cushion 2; one end of the shoulder safety belt 10 is fixed on the front surface of the backrest 4, and the other end of the shoulder safety belt is buckled into a safety belt clamping groove arranged at the top of the back surface of the backrest 4.

The device also comprises a main U-shaped rod 11, an outer U-shaped rod 12, waterproof cloth 13 and a plurality of U-shaped rods 14 for supporting; the pushing handles 5 on the two sides are oppositely provided with rotating shafts 15, and through holes are formed in the rotating shafts 15 in the radial direction; the through holes of the rotating shafts 15 on the two sides are respectively penetrated through the two sides of the main U-shaped rod 11 in a sliding manner, and two end heads of the main U-shaped rod 11 are correspondingly hinged with two end heads of the supporting U-shaped rod 14 and two end heads of the outer U-shaped rod 12; the bottom side of the main U-shaped rod 11 is fixed with one side of the waterproof cloth 13, the rod of the outer U-shaped rod 12 is fixed with the other side of the waterproof cloth 13, and the rod of the supporting U-shaped rod 14 is uniformly and fixedly supported into the inner surface of the waterproof cloth 13. The main U-shaped rod 11, the supporting U-shaped rod 14 and the outer U-shaped rod 12 are formed by bending high-elasticity light metal rods.

The armrests 3 on the two sides are respectively fixedly connected with a table plate 16 and a transfusion rod 17. The transfusion rod 17 is a telescopic rod, the top of the transfusion rod is provided with a transfusion hook, and the bottom of the transfusion rod is fixed beside the handrail 3.

The bottom of the wheelchair main body support 1 is fixed with a nursing box 18, and the opening position of the nursing box 18 is at the rear.

And the brake 6 of the wheel is in a disc brake form.

Stated another way, the embodiment may be described as shown in figures 1 to 4, an improved wheelchair consisting essentially of a wheelchair body frame 1, a seat cushion 2, armrests 3, a backrest 4, push handles 5, brakes 6, wheels 7, footrests 8, a table 16, an infusion rod 17 and a nursing box 18.

The wheelchair main body support 1 is provided with a backrest connecting shaft, a front wheel connecting end, a rear wheel connecting shaft and a pedal connecting end which are respectively connected with a backrest 4, front and rear wheels 7 and a foot support 8. The bottom end of the backrest 4 is connected with the backrest connecting shaft and is provided with an angle adjusting handle, and the backrest 4 can rotate along the backrest connecting shaft through the angle adjusting handle; the middle of the backrest 4 is provided with a backrest cushion, two pushing handles 5 are arranged on the backrest cushion, a rear hand brake for controlling the brake 6 is arranged at the pushing handle 5, a rotating shaft 15 is further arranged at the pushing handle 5, and the waterproof cloth 13 can rotate and slide along the rotating shaft 15.

The armrests 3 are connected with the wheelchair main body support 1, and the positions of the armrests 3 on the left side and the right side are respectively provided with a table board connecting end and a transfusion rod connecting end. The table 16 is provided with a connecting rod and a rotating shaft, the connecting rod is used for connecting the table to the table connecting end, and the rotating shaft can enable the table to rotate and adjust to a proper position. Infusion rod 17 can adjust length, and the top is equipped with the infusion couple, and the bottom is connected with infusion rod link.

The wheel 7 divide into respectively two of preceding wheel and rear wheel, the rear wheel passes through the rear wheel connecting axle and is connected with wheelchair main part support 1, be equipped with the dish between rear wheel and the rear wheel connecting axle and brake 6 as the dish. The braking system is provided with a front hand brake and a rear hand brake. The front hand brake is positioned in front of the rear wheel and is provided with a brake handle, and the brake is realized by pushing the brake handle. The back hand brake adopts the dish system of stopping, and the hand brake is fixed and is being close to push handle 5 department, and the stopper is fixed with supporting dish brake and is being close to back wheel connecting axle department at wheelchair main part support 1.

The safety belts are divided into a leg safety belt 9 and a shoulder safety belt 10, and the safety belts are respectively provided with a safety belt buckle and a safety belt clamping groove. One end of the leg safety belt 9 is connected with the cushion 5, and the other end of the leg safety belt is connected and matched with the safety belt clamping grooves on the left side and the right side through safety belt buckles; one end of the shoulder safety belt 10 is fixed with the front surface of the backrest 4, and the other end of the shoulder safety belt is fixed by winding around the shoulder of the patient and the safety belt clamping groove at the rear side of the backrest 4.

The tarpaulin 13 can be folded and unfolded along the rotating shaft 15, the main U-shaped rod 11 on one side of the tarpaulin 13 penetrates into the rotating shaft 15, so that the main U-shaped rod 11 can rotate and slide along the rotating shaft 15, and the angle and the position of the tarpaulin 13 can be adjusted by matching the outer U-shaped rod 12 with the plurality of U-shaped rods 14 for supporting.

The nursing box 18 is fixed at the bottom of the wheelchair, and the opening position is at the rear, so that the nursing or nursing staff can use the nursing box conveniently at any time.

When in use, the backrest 4 can be adjusted to a proper angle according to the actual condition of a patient, and the patient is fixed by a safety belt; when transfusion is required, the table plate 16 can be rotated and unfolded, and the transfusion rod 17 can be adjusted to a proper height. The nursing staff can control the speed through the brake, the waterproof cloth 13 can shade the sun and rain for the patient, and the nursing box 18 is convenient for the nursing staff to use at any time

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions, all of which are within the scope of the invention as defined by the appended claims.

Claims

1. An improved wheelchair comprises a wheelchair main body support, wherein a flatly placed seat cushion, handrails flatly placed on two sides, a vertically placed backrest and a pair of pushing handles on the backrest are arranged on the wheelchair main body support, and wheels with brakes and foot supports are arranged below the wheelchair main body support; one end of the leg safety belt is buckled into a safety belt clamping groove arranged beside the seat cushion, and the other end of the leg safety belt is fixed to the center of the upper surface of the seat cushion; one end of the shoulder safety belt is fixed on the front face of the backrest, and the other end of the shoulder safety belt is buckled into a safety belt clamping groove formed in the top of the back face of the backrest.

2. The improved wheelchair as claimed in claim 1, further comprising a main U-shaped bar, an outer U-shaped bar, tarpaulins and a plurality of supporting U-shaped bars; the pushing handles on the two sides are oppositely provided with rotating shafts, and through holes are formed in the rotating shafts in the radial direction; the rotating shaft through holes on the two sides are respectively penetrated through the two sides of the main U-shaped rod in a sliding manner, and two end heads of the main U-shaped rod are correspondingly hinged with two end heads of the supporting U-shaped rod and two end heads of the outer U-shaped rod; the bottom side of the rod body of the main U-shaped rod is fixed with one side of the waterproof cloth, the rod body of the outer U-shaped rod is fixed by the other side of the waterproof cloth, and the rod body of the supporting U-shaped rod is uniformly and fixedly supported to the inner surface of the waterproof cloth.

3. The improved wheelchair as claimed in claim 2, wherein the main U-shaped bar, the supporting U-shaped bar and the outer U-shaped bar are formed by bending high-elasticity light metal bars.

4. The improved wheelchair as claimed in claim 1, wherein the armrests on both sides are respectively fixedly connected with a table plate and an infusion rod.

5. The improved wheelchair as claimed in claim 1, wherein the infusion rod is a telescopic rod, the top of the telescopic rod is provided with an infusion hook, and the bottom of the telescopic rod is fixed beside the armrest.

6. The improved wheelchair as claimed in claim 1, wherein a nursing box is fixed to the bottom of the wheelchair body frame, and the nursing box is opened at the rear.

7. An improved wheelchair in accordance with claim 1 wherein the brakes of the wheels are in the form of disc brakes.