Wheelchair capable of lifting affected limb

By integrating movable arms, servo motor and PLC controller on the wheelchair, patients can independently raise their legs, solving the problem that medical staff need to manually lift their legs in the existing wheelchair, and through the design of limit latch and limit holes, The folding storage of wheelchairs is realized, reducing the workload and storage space of medical staff.

CN222218089UActive Publication Date: 2024-12-24FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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Patent Information

Application Number
CN202420803220.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-18
Publication Date
2024-12-24
Estimated Expiration
2034-04-18

AI Technical Summary

Technical Problem

Most existing wheelchairs do not have the function of raising the patient's lower limbs, and medical staff need to manually lift their legs, which increases the workload of medical staff.

Method used

A wheelchair that can lift the affected limb is designed, using a combination of movable arms, servo motors, leg brackets and PLC controllers. Patients can independently lift their legs through the PLC controller to reduce their dependence on medical staff.

Benefits of technology

Patients can raise their legs anytime, anywhere without the help of medical staff, which significantly reduces the workload of medical staff. Through the design of limit latch and limit hole, the wheelchair can be folded and stored, reducing the footprint.

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Abstract

The utility model relates to the technical field of wheelchairs, and discloses a wheelchair capable of lifting an affected limb, which comprises a seat plate, armrests fixedly connected to two sides of the seat plate, a PLC (programmable logic controller) fixedly connected to the tops of the armrests, a mounting seat fixedly connected to the front side of the seat plate, a movable arm rotatably connected to the outer side of the mounting seat, and a servo motor fixedly connected to the inner side of the mounting seat. A movable arm is fixedly connected to the left side of the seat plate, a leg support is fixedly connected to the inner side of the movable arm, a connecting seat is fixedly connected to the rear side of the seat plate, a rotating shaft is rotatably connected to the interior of the connecting seat, a mounting block is fixedly connected to the left end of the rotating shaft, and a backrest is fixedly connected to the top of the rotating shaft. A patient can control the two servo motors to drive the two movable arms to be lifted through the PLC, then the leg supports are driven to drive the two legs of the patient to move, the patient can lift the legs anytime and anywhere without help of medical staff, and the workload of the medical staff is relieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of wheelchairs, in particular to a wheelchair capable of raising an affected limb. 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 for home rehabilitation, transportation, medical treatment, and outdoor activities. For patients with lower limb paralysis, they need to move their lower limbs frequently to promote blood circulation in the lower limbs, thereby avoiding further deterioration of the condition.

[0003] Most of the existing wheelchairs do not have the function of lifting the patient's lower limbs, and medical staff are needed to help the patient complete the leg-lifting action. The medical staff need to use a certain amount of force to slowly lift the patient's legs upwards and then slowly put them down, which increases the workload of the medical staff. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a wheelchair that can lift the affected limbs, so as to solve the problem that most of the existing wheelchairs mentioned in the above background technology do not have the function of lifting the patient's lower limbs, and medical staff are required to come and help the patient to complete the leg lifting action. The medical staff needs to use a certain amount of force to slowly lift the patient's legs upwards and then slowly put them down, which increases the workload of the medical staff.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheelchair capable of raising an affected limb comprises a seat plate, a wheel is arranged at the bottom of the seat plate, a seat cushion is fixedly connected to the top of the seat plate, armrests are fixedly connected to both sides of the seat plate, a PLC controller is fixedly connected to the top of the armrests, a mounting seat is fixedly connected to the front side of the seat plate, a movable arm is rotatably connected to the outer side of the mounting seat, a servo motor is fixedly connected to the inner side of the mounting seat, a leg bracket is fixedly connected to the inner side of the movable arm, a connecting seat is fixedly connected to the rear side of the seat plate, a limiting hole is provided on the surface of the connecting seat, a rotating shaft is rotatably connected to the inside of the connecting seat, a mounting block is fixedly connected to the left end of the rotating shaft, a limiting pin is fixedly connected to the side of the mounting block close to the connecting seat, a backrest is fixedly connected to the top of the rotating shaft, and a backrest pad is fixedly connected to the front side of the backrest.

[0006] Preferably, there are two mounting seats, and the two mounting seats are symmetrically distributed on both sides of the seat plate, and the inner sides of the two mounting seats are fixedly connected with servo motors.

[0007] Preferably, the number of the movable arms is two, and the two movable arms are symmetrically distributed on the outsides of the two mounting seats, and the two movable arms are fixedly connected to the output ends of the two servo motors respectively.

[0008] By adopting the above technical solution, by setting up movable arms, servo motors, and leg supports in conjunction with a PLC controller, the patient can use the PLC controller to control the two servo motors to drive the two movable arms to lift, and then drive the leg supports to move the patient's two legs respectively. The patient can raise his legs anytime and anywhere without the help of medical staff, thereby reducing the workload of medical staff.

[0009] Preferably, the PLC controller is electrically connected to the two servo motors respectively.

[0010] Preferably, there are a plurality of the limiting holes, and the plurality of the limiting holes are distributed on the surface of the connecting seat in a ring array, and the spacings between the plurality of the limiting holes are the same.

[0011] Preferably, there are several limit pins, the positions of several limit pins correspond to several limit holes, and the diameters of several limit pins are the same as the diameters of several limit holes.

[0012] By adopting the above technical solution, by setting a limit pin, a limit hole, etc. in conjunction with the connecting seat, the limit pin can be driven away from the limit hole by pushing the rotating shaft to the right, thereby releasing the lock of the rotating shaft. At this time, the medical staff can adjust the angle of the backrest by rotating the rotating shaft. The maximum angle can fold the backrest onto the seat plate, which is convenient for medical staff to use.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The wheelchair that can raise the affected limb is used by setting movable arms, servo motors, and leg supports in conjunction with a PLC controller. The patient can use the PLC controller to control two servo motors to drive the two movable arms to lift, and then drive the leg supports to move the patient's two legs respectively. The patient can raise his legs anytime and anywhere without the help of medical staff, thereby reducing the workload of medical staff.

[0015] 2. The wheelchair capable of raising the affected limb is used in conjunction with a connecting seat by setting a limit pin, a limit hole, etc., and the limit pin can be driven away from the limit hole by pushing the rotating shaft to the right, thereby releasing the lock on the rotating shaft, and then the backrest can be rotated and folded onto the seat plate. The PLC controller is used to control the two movable arms to drive the leg bracket to rotate and fold above the seat plate, thereby reducing the floor space occupied by the wheelchair, thereby storing more wheelchairs and facilitating storage by medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a rear view structural diagram of the utility model;

[0018] Figure 3 It is a right side structural schematic diagram of the utility model;

[0019] Figure 4 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 5 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0021] Figure 6 It is a schematic diagram of the folding structure of the utility model.

[0022] In the figure: 1. seat plate; 2. wheels; 3. armrests; 4. PLC controller; 5. backrest; 6. backrest pad; 7. seat cushion; 8. mounting base; 9. movable arm; 10. leg bracket; 11. servo motor; 12. connecting base; 13. rotating shaft; 14. limiting hole; 15. limiting pin; 16. mounting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] Please refer to Figure 1-5A wheelchair capable of raising an affected limb comprises a seat plate 1, a wheel 2 is arranged at the bottom of the seat plate 1, a seat cushion 7 is fixedly connected to the top of the seat plate 1, armrests 3 are fixedly connected to both sides of the seat plate 1, a PLC controller 4 is fixedly connected to the top of the armrests 3, a mounting seat 8 is fixedly connected to the front side of the seat plate 1, a movable arm 9 is rotatably connected to the outer side of the mounting seat 8, a servo motor 11 is fixedly connected to the inner side of the mounting seat 8, the number of the mounting seats 8 is two, and the two mounting seats 8 are symmetrically distributed on both sides of the seat plate 1, and the inner sides of the two mounting seats 8 are fixedly connected to the servo motor 11, and the number of the movable arms 9 is two, The two movable arms 9 are symmetrically distributed on the outside of the two mounting seats 8, and the two movable arms 9 are respectively fixedly connected to the output ends of the two servo motors 11, the inner side of the movable arm 9 is fixedly connected to the leg bracket 10, the rear side of the seat plate 1 is fixedly connected to the connecting seat 12, the surface of the connecting seat 12 is provided with a limiting hole 14, the internal rotation of the connecting seat 12 is connected to a rotating shaft 13, the left end of the rotating shaft 13 is fixedly connected to a mounting block 16, the side of the mounting block 16 close to the connecting seat 12 is fixedly connected to a limiting pin 15, the top of the rotating shaft 13 is fixedly connected to a backrest 5, and the front side of the backrest 5 is fixedly connected to a backrest pad 6.

[0026] Working principle: When in use, the medical staff helps the patient to sit on the seat 1, and places the patient's lower limbs on the two leg supports 10 respectively. By pushing the rotating shaft 13 to the right, the limit pin 15 can be driven away from the limit hole 14, thereby releasing the lock on the rotating shaft 13. At this time, the medical staff can adjust the angle of the backrest 5 by rotating the rotating shaft 13, which is convenient for the patient to use. When it is adjusted to a suitable angle, the medical staff reverses the above operation and reinserts the limit pin 15 into the limit hole 14 for locking. The patient can use the PLC controller 4 to control the two servo motors 11 to drive the two movable arms 9 to lift or lower, thereby driving the leg supports 10 to drive the patient's two legs to move respectively. The patient can raise his legs anytime and anywhere without the help of medical staff, thereby reducing the workload of medical staff.

[0027] Compared with the related art, the wheelchair capable of raising the affected limb provided by the utility model has the following beneficial effects: by setting the movable arm 9, the servo motor 11 and the leg support 10 for use with the PLC controller 4, the patient can control the two servo motors 11 through the PLC controller 4 to drive the two movable arms 9 to raise, thereby respectively driving the leg support 10 to respectively drive the two legs of the patient to move, and the patient can raise the legs anytime and anywhere without the help of medical staff, thereby reducing the workload of medical staff.

[0028] Embodiment 2:

[0029] Please refer to Figure 1-6A connecting seat 12 is fixedly connected to the rear side of the seat plate 1, and a limiting hole 14 is opened on the surface of the connecting seat 12. The number of the limiting holes 14 is several, and the limiting holes 14 are distributed in a circular array on the surface of the connecting seat 12, and the spacing between the limiting holes 14 is the same. The connecting seat 12 is internally rotatably connected with a rotating shaft 13, and a mounting block 16 is fixedly connected to the left end of the rotating shaft 13. A limiting pin 15 is fixedly connected to the side of the mounting block 16 close to the connecting seat 12. The number of the limiting pins 15 is several, and the positions of the limiting pins 15 correspond to the positions of the limiting holes 14, and the diameters of the limiting pins 15 are the same as the diameters of the limiting holes 14. A backrest 5 is fixedly connected to the top of the rotating shaft 13, and a backrest pad 6 is fixedly connected to the front side of the backrest 5.

[0030] Example writing

[0031] Working principle: When the wheelchair is not in use, medical staff can push the rotating shaft 13 to the right to drive the limit pin 15 away from the limit hole 14, thereby releasing the lock on the rotating shaft 13, and then rotating and folding the backrest 5 onto the seat plate 1, and then through the PLC controller 4, controlling the two movable arms 9 to drive the leg support 10 to rotate and fold above the seat plate 1, reducing the floor space occupied by the wheelchair, thereby storing more wheelchairs and facilitating storage by medical staff.

[0032] Compared with the related art, the wheelchair capable of raising the affected limb provided by the utility model has the following beneficial effects: by setting a limit pin 15, a limit hole 14 and the like in conjunction with the connecting seat 12, the limit pin 15 can be driven away from the limit hole 14 by pushing the rotating shaft 13 to the right, thereby releasing the lock on the rotating shaft 13, and then the backrest 5 can be rotated and folded onto the seat plate 1, and then the two movable arms 9 are controlled by the PLC controller 4 to drive the leg support 10 to rotate and fold above the seat plate 1, thereby reducing the floor space occupied by the wheelchair, thereby storing more wheelchairs and facilitating storage by medical staff.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheelchair capable of raising an affected limb, comprising a seat plate (1), characterized in that: The bottom of the seat plate (1) is provided with wheels (2), the top of the seat plate (1) is fixedly connected to a seat cushion (7), both sides of the seat plate (1) are fixedly connected to armrests (3), the top of the armrests (3) is fixedly connected to a PLC controller (4), the front side of the seat plate (1) is fixedly connected to a mounting seat (8), the outer side of the mounting seat (8) is rotatably connected to a movable arm (9), the inner side of the mounting seat (8) is fixedly connected to a servo motor (11), and the inner side of the movable arm (9) is fixedly connected to a leg bracket ( 10), a connecting seat (12) is fixedly connected to the rear side of the seat plate (1), a limiting hole (14) is provided on the surface of the connecting seat (12), a rotating shaft (13) is rotatably connected inside the connecting seat (12), a mounting block (16) is fixedly connected to the left end of the rotating shaft (13), a limiting pin (15) is fixedly connected to the side of the mounting block (16) close to the connecting seat (12), a backrest (5) is fixedly connected to the top of the rotating shaft (13), and a backrest pad (6) is fixedly connected to the front side of the backrest (5).

2. A wheelchair capable of raising an affected limb according to claim 1, characterized in that: The number of the mounting seats (8) is two, and the two mounting seats (8) are symmetrically distributed on both sides of the seat plate (1), and the inner sides of the two mounting seats (8) are fixedly connected to a servo motor (11).

3. A wheelchair capable of raising an affected limb according to claim 1, characterized in that: The number of the movable arms (9) is two, and the two movable arms (9) are symmetrically distributed on the outsides of the two mounting seats (8), and the two movable arms (9) are respectively fixedly connected to the output ends of the two servo motors (11).

4. A wheelchair capable of raising an affected limb according to claim 1, characterized in that: The PLC controller (4) is electrically connected to the two servo motors (11) respectively.

5. A wheelchair capable of raising an affected limb according to claim 1, characterized in that: The number of the limiting holes (14) is several, and the several limiting holes (14) are distributed in a ring array on the surface of the connecting seat (12), and the spacing between the several limiting holes (14) is the same.

6. A wheelchair capable of raising an affected limb according to claim 1, characterized in that: The number of the limiting pins (15) is several, the positions of the limiting pins (15) correspond to the positions of the limiting holes (14), and the diameters of the limiting pins (15) are the same as the diameters of the limiting holes (14).