Pressure sore prevention wheelchair

Abstract

The utility model discloses a wheelchair capable of preventing pressure sores. The wheelchair aims at solving the technical problem that in the prior art, a common wheelchair is single in function. Comprising a vehicle body, a backboard frame is fixedly connected to the middle of the left end of the vehicle body, a backrest and a seat plate are fixedly connected to the middle of the backboard frame and the middle of the top end of the vehicle body respectively, a plurality of air holes are formed in the middle of the backrest and the middle of the seat plate, and hollowed-out pads are fixedly connected to the right side of the backrest and the upper surface of the seat plate; the two hollowed-out cushions are integrally formed on the backrest and the seat plate respectively and matched with the air holes, stability of the wheelchair is guaranteed, air circulation between the body and the wheelchair is guaranteed, meanwhile, the backrest conforms to human engineering and is matched with the inclined seat plate, the gravity center of a patient can be changed, the buttocks and the legs are prevented from being pressed for a long time, and the patient can feel comfortable. Therefore, pressure sores are avoided, and the experience feeling of a patient is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheelchairs, and in particular relates to a wheelchair for preventing pressure sores. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled to conduct home rehabilitation, transportation, medical treatment, and outdoor activities.

[0003] Patients who sit in wheelchairs for a long time have parts of their legs and buttocks pressed against the wheelchair cushions, so these parts are prone to pressure sores, resulting in poor circulation in the patients' lower limbs. Common wheelchairs have relatively simple functions. In order to prevent patients from developing pressure sores, most of them place flexible cushions on the wheelchair seats, but this effect is not ideal. Since the buttocks, thighs, waist and back are pressed against the wheelchair and have poor air permeability, they are prone to heat and sweating, which makes pressure sores more likely to occur, resulting in a poor patient experience. Therefore, an anti-pressure sore wheelchair is designed to change the above technical defects. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an anti-pressure ulcer wheelchair, which is mainly intended to solve the technical problem that the common wheelchairs in the existing technology have relatively single functions.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an anti-pressure ulcer wheelchair, including a body, a backboard frame fixedly connected to the middle of the left end of the body, a backrest and a seat plate fixedly connected to the middle of the backboard frame and the middle of the top of the body respectively, a plurality of ventilation holes are provided in the middle of the backrest and the middle of the seat plate, a hollow pad is fixedly connected to the right side of the backrest and the upper surface of the seat plate, armrest assemblies are provided on the front and rear upper surfaces of the right end of the body, and a footboard assembly is provided at the bottom of the body.

[0008] Preferably, a wheel is fixedly mounted on the lower surface of the left end of the vehicle body via a fixing frame, and a self-locking universal wheel is fixedly mounted on the lower surface of the right end of the vehicle body via a fixing frame.

[0009] Furthermore, the left upper end of the back panel is fixedly connected to a handle frame, and the back panel frame is arranged in an arc shape.

[0010] Furthermore, the material of the backrest and the seat plate are ABS material and the two are molded as one piece, and the hollow pad is made of soft rubber, and the soft rubber is made of TPE material.

[0011] Furthermore, the two armrest assemblies each include two fixed columns and a fixed armrest, the two fixed columns are fixedly connected to the top of the vehicle body, the fixed armrest is fixedly connected to the top of the two fixed columns, a groove is provided in the middle of the top of the fixed armrest, a through hole is provided in the middle of the inner bottom wall of the groove, a sleeve is fixedly connected to the lower surface of the fixed armrest and is located between the outside of the through hole and the upper surface of the vehicle body, a lifting armrest is slidably connected to the inside of the groove, a connecting column is fixedly connected to the middle of the lower surface of the lifting armrest, and the end of the connecting column away from the lifting armrest slides through the through hole and extends to the inside of the sleeve.

[0012] Furthermore, the outer wall of the sleeve is threadedly connected to a locking bolt, a threaded hole is opened in the middle of the connecting column and at a position corresponding to the locking bolt, one end of the locking bolt is threadedly connected to the threaded hole, and a safety belt is fixedly installed between the left ends of the two fixed handrails.

[0013] Furthermore, the foot plate assembly is located between the two self-locking universal wheels, and the foot plate assembly includes two mounting columns, which are symmetrically fixedly connected to the bottom of the fixing frame at the right end. The bottoms of the two mounting columns are fixedly connected to the same mounting plate, and two hinge grooves are symmetrically opened at the top of the right end of the mounting plate. The inside of the two hinge grooves are damped and hinged with movable columns, and a limiting cavity is opened in the middle of the end of the movable column away from the mounting plate. The inside of the limiting cavity is slidably connected to the limiting plate, and an extension column is fixedly connected to the middle of the right side of the limiting plate. The foot plate is damped and hinged between the other ends of the two extension columns.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model integrates two hollow pads into the backrest and the seat plate, and cooperates with ventilation holes, which not only ensures the stability of the wheelchair, but also ensures air circulation between the body and the wheelchair. At the same time, the backrest is ergonomic and cooperates with the inclined seat plate to change the patient's center of gravity and avoid long-term compression of the buttocks and legs. This not only avoids the formation of pressure sores but also improves the patient's experience.

[0017] The utility model provides an armrest assembly so that the lifting armrest can be freely adjusted according to needs, which is more humane and convenient for patients to use; at the same time, the footboard assembly can be pulled out or stored under the seat plate according to whether it is used, which is flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the exploded structure of the backrest, seat plate and hollow cushion of the utility model;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the handrail of the present utility model;

[0023] Figure 6 It is a schematic diagram of a three-dimensional partial cross-sectional structure of the footboard assembly of the present invention.

[0024] The marks in the accompanying drawings are: 1. Vehicle body; 2. Backboard frame; 3. Backrest; 4. Seat plate; 5. Handle frame; 6. Hollow pad; 7. Fixed column; 8. Fixed armrest; 9. Groove; 10. Through hole; 11. Sleeve; 12. Locking bolt; 13. Connecting column; 14. Threaded hole; 15. Lifting armrest; 16. Footboard assembly; 17. Mounting column; 18. Mounting plate; 19. Hinge slot; 20. Movable column; 21. Limiting cavity; 22. Limiting plate; 23. Extension column; 24. Footboard; 25. Ventilation hole; 26. Wheel; 27. Self-locking universal wheel; 28. Safety belt. DETAILED DESCRIPTION

[0025] This specific embodiment is a pressure sore prevention wheelchair, and its structural diagram is as follows Figures 1-6 As shown, it includes a vehicle body 1, a back panel frame 2 is fixedly connected to the middle of the left end of the vehicle body 1, a backrest 3 and a seat plate 4 are fixedly connected to the middle of the back panel frame 2 and the middle of the top of the vehicle body 1 respectively, a plurality of ventilation holes 25 are provided in the middle of the backrest 3 and the middle of the seat plate 4, a hollow pad 6 is fixedly connected to the right side of the backrest 3 and the upper surface of the seat plate 4, armrest assemblies are provided on the front and rear upper surfaces of the right end of the vehicle body 1, and a foot plate assembly 16 is provided at the bottom of the vehicle body 1.

[0026] By providing evenly distributed ventilation holes 25 on the backrest 3 and the seat plate 4, the backrest 3 and the seat plate 4 can support the user. At the same time, the hollow pad 6 is made of soft rubber and is integrally formed on the backrest 3 and the seat plate 4. When in use, the hollow pad 6 and the ventilation holes 25 can maintain air convection between the patient's body and the outside, avoiding stuffiness and sweating in the contact parts of the patient's body with the wheelchair, thereby avoiding the occurrence of pressure sores.

[0027] Among them, the wheel 26 is fixedly installed on the lower surface of the left end of the vehicle body 1 through a fixing frame, and the self-locking universal wheel 27 is fixedly installed on the lower surface of the right end of the vehicle body 1 through a fixing frame; the vehicle body 1 is tilted to the lower left, so that the patient can tilt his body slightly backward after sitting on it, which changes the patient's body center of gravity. The wheel 26 and the self-locking universal wheel 27 can be used flexibly by cooperating.

[0028] In addition, the upper left end of the back frame 2 is fixedly connected to the same handle frame 5, and the back frame 2 is arranged in an arc shape; a flexible anti-slip layer is provided on the handle frame 5, and the handle frame 5 can facilitate medical personnel to push the wheelchair. The back frame 2 is arranged in an arc shape that fits the back of the human body to change the center of gravity position when sitting and reduce the pressure on the patient's buttocks.

[0029] In addition, the material of the backrest 3 and the seat plate 4 are ABS material and the two are integrally formed, and the hollow pad 6 is made of soft rubber, and the soft rubber is made of TPE material; the soft hollow pad 6 is integrally formed with the hard backrest 3 and seat plate 4 respectively, which can not only support the patient's body, but also reduce the pressure on the patient's body.

[0030] In addition, the two armrest assemblies each include two fixed columns 7 and a fixed armrest 8. The two fixed columns 7 are fixedly connected to the top of the vehicle body 1, and the fixed armrest 8 is fixedly connected to the top of the two fixed columns 7. A groove 9 is provided in the middle of the top of the fixed armrest 8, and a through hole 10 is provided in the middle of the inner bottom wall of the groove 9. A sleeve 11 is fixedly connected to the lower surface of the fixed armrest 8 and is located between the outer side of the through hole 10 and the upper surface of the vehicle body 1. A lifting armrest 15 is slidably connected to the inside of the groove 9, and a connecting column 13 is fixedly connected to the middle of the lower surface of the lifting armrest 15. The end of the connecting column 13 away from the lifting armrest 15 slides through the through hole 10 and extends to the inside of the sleeve 11; the armrest assembly has two states when in use, one is that the lifting armrest 15 is accommodated in the groove 9, at this time the upper surface of the lifting armrest 15 is flush with the upper surface of the fixed armrest 8, and the other is that the lifting armrest 15 is detached from the groove 9 and is located above the groove 9, which is convenient for patients to use.

[0031] In addition, a locking bolt 12 is threadedly connected to the outer wall of the sleeve 11, and a threaded hole 14 is provided in the middle of the connecting column 13 and at a position corresponding to the locking bolt 12. One end of the locking bolt 12 is threadedly connected to the threaded hole 14, and a safety belt 28 is fixedly installed between the left ends of the two fixed armrests 8; when the lifting armrest 15 is located above the groove 9, the locking bolt 12 can be rotated forward, and one end of the locking bolt 12 is screwed into the threaded hole 14 on the connecting column 13, so that the connecting column 13 is positioned, thereby limiting the position of the lifting armrest 15, which is convenient for the patient to adjust flexibly; the safety belt 28 is similar to the use of the safety belt 28 on the car. The free end of the safety belt 28 is passed over the patient's waist and inserted into the rear buckle (not shown) to ensure the safety of the patient.

[0032] In addition, the foot plate assembly 16 is located between the two self-locking universal wheels 27. The foot plate assembly 16 includes two mounting columns 17. The two mounting columns 17 are symmetrically fixedly connected to the bottom of the fixing frame at the right end. The bottoms of the two mounting columns 17 are fixedly connected to the same mounting plate 18. Two hinge grooves 19 are symmetrically provided at the top of the right end of the mounting plate 18. The insides of the two hinge grooves 19 are hinged with movable columns 20, and the hinge shaft adopts a damping rotating shaft. A limiting cavity 21 is provided in the middle of one end of the movable column 20 away from the mounting plate 18. The inside of the limiting cavity 21 is slidably connected to the limiting plate 22. An extension column 23 is fixedly connected to the middle of the right side of the limiting plate 22. A foot plate 24 is hinged between the other ends of the two extension columns 23, and the hinge shaft adopts a damping rotating shaft. By flipping the movable column 20 The movable column 20 can be placed in both horizontal and vertical states. When the movable column 20 is in the horizontal state, the extension column 23 can be pulled outward, so that the extension column 23 drives the limit plate 22 to slide outward in the limit cavity 21 until the limit plate 22 contacts the inner wall of the right end of the limit cavity 21. At this time, the extension column 23 is extended to the maximum position, and the foot plate 24 can be flipped to a suitable position to facilitate supporting the foot; conversely, when the extension column 23 is completely in the limit cavity 21, the foot plate 24 can be flipped to a vertical state, and then the movable column 20 is flipped upward so that the movable column 20 can rotate around the hinge groove 19. When the movable column 20 is flipped upward to the vertical state, it is located below the seat plate 4, and the foot plate 24 is in a horizontal state, which is convenient for the use and storage of the foot plate 24.

[0033] Working principle: When a patient sits on the wheelchair, the backrest 3, seat plate 4 and hollow cushion 6 can support the patient's body. The backrest 3 has an ergonomic arc shape, which can change the patient's center of gravity and reduce the pressure on the buttocks. At the same time, the hollow cushion 6, the backrest 3 and the ventilation holes 25 on the seat plate 4 can increase air convection, avoiding the patient's body from getting hot and sweating at the contact point with the wheelchair, and preventing the occurrence of pressure sores.

[0034] At the same time, after the patient sits on the wheelchair, the safety belt 28 can be passed over the waist from the front and inserted into the lock buckle at the rear end. The safety of the patient can be ensured by combining with the seat plate 4 tilted to the lower left. When the fixed armrest 8 is at a lower position, the locking bolt 12 can be rotated in the reverse direction to disengage one end of the fixed armrest 8 from the threaded hole 14. Then, the lifting armrest 15 can be pulled upward. The lifting armrest 15 disengages from the groove 9 and drives the connecting column 13 to move upward. After adjusting the lifting armrest 15 to a suitable position, the locking bolt 12 can be rotated forward to fix the position of the connecting column 13, thereby fixing the position of the lifting armrest 15. This makes it easier for the patient to use.

[0035] Then the vertical movable column 20 can be flipped to the right end so that it is in a horizontal position, and then the extension column 23 can be pulled outward, so that the extension column 23 drives the limit plate 22 to slide outward in the limit cavity 21 until the limit plate 22 contacts the inner wall of the right end of the limit cavity 21. At this time, the extension column 23 is extended to the maximum position, and the foot plate 24 can be flipped to a suitable position to facilitate supporting the foot.

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A pressure sore prevention wheelchair, comprising a body (1), characterized in that: The middle of the left end of the vehicle body (1) is fixedly connected to a backboard frame (2), the middle of the backboard frame (2) and the middle of the top of the vehicle body (1) are respectively fixedly connected to a backrest (3) and a seat plate (4), the middle of the backrest (3) and the middle of the seat plate (4) are both provided with a plurality of ventilation holes (25), the right side of the backrest (3) and the upper surface of the seat plate (4) are both fixedly connected to a hollow pad (6), the front and rear upper surfaces of the right end of the vehicle body (1) are both provided with armrest assemblies, and a footboard assembly (16) is provided below the vehicle body (1).

2. The anti-pressure sore wheelchair according to claim 1, characterized in that: A wheel (26) is fixedly mounted on the lower surface of the left end of the vehicle body (1) via a fixing frame, and a self-locking universal wheel (27) is fixedly mounted on the lower surface of the right end of the vehicle body (1) via a fixing frame.

3. The anti-pressure sore wheelchair according to claim 1, characterized in that: The left upper end of the backboard frame (2) is fixedly connected to a handle frame (5), and the backboard frame (2) is arranged in an arc shape.

4. The anti-pressure sore wheelchair according to claim 1, characterized in that: The material of the backrest (3) and the material of the seat plate (4) are ABS material and the two are integrally formed. The hollow pad (6) is made of soft rubber, and the soft rubber is made of TPE material.

5. The anti-pressure sore wheelchair according to claim 1, characterized in that: The two armrest assemblies each include two fixed columns (7) and a fixed armrest (8), the two fixed columns (7) are fixedly connected to the top of the vehicle body (1), the fixed armrest (8) is fixedly connected to the top of the two fixed columns (7), a groove (9) is provided in the middle of the top of the fixed armrest (8), a through hole (10) is provided in the middle of the inner bottom wall of the groove (9), a sleeve (11) is fixedly connected to the lower surface of the fixed armrest (8) and located between the outer side of the through hole (10) and the upper surface of the vehicle body (1), a lifting armrest (15) is slidably connected to the inside of the groove (9), a connecting column (13) is fixedly connected to the middle of the lower surface of the lifting armrest (15), and the connecting column (13) slides through the through hole (10) at one end away from the lifting armrest (15) and extends to the inside of the sleeve (11).

6. The anti-pressure sore wheelchair according to claim 5, characterized in that: The outer wall of the sleeve (11) is threadedly connected to a locking bolt (12), a threaded hole (14) is provided in the middle of the connecting column (13) at a position corresponding to the locking bolt (12), one end of the locking bolt (12) is threadedly connected to the threaded hole (14), and a safety belt (28) is fixedly installed between the left ends of the two fixed handrails (8).

7. The anti-pressure sore wheelchair according to claim 1, characterized in that: The foot plate assembly (16) is located between the two self-locking universal wheels (27), and the foot plate assembly (16) includes two mounting columns (17). The two mounting columns (17) are symmetrically fixedly connected to the bottom of the fixing frame at the right end. The bottoms of the two mounting columns (17) are fixedly connected to the same mounting plate (18). Two hinge grooves (19) are symmetrically opened at the top of the right end of the mounting plate (18). The insides of the two hinge grooves (19) are damped and hinged with movable columns (20). A limiting cavity (21) is opened in the middle of one end of the movable column (20) away from the mounting plate (18). The inside of the limiting cavity (21) is slidably connected to the limiting plate (22). The middle of the right side of the limiting plate (22) is fixedly connected with an extension column (23), and a foot plate (24) is damped and hinged between the other ends of the two extension columns (23).

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