Medical care wheelchair

Abstract

This utility model belongs to the field of medical device technology and discloses a medical nursing wheelchair, including a wheelchair frame, a seat, a backrest, a headrest, leg supports, footrests, casters, and drive wheels. The seat includes a left seat frame, a right seat frame, and a sliding frame located between them. The left seat frame has a left seat cushion, and the right seat frame has a right seat cushion. The sliding frame has a middle seat cushion with a toilet hole, which is covered. A support frame is located below the sliding frame. The sliding frame has a lifting component that can drive the left and right seat frames and the support frame to move up and down. A drive component that allows the sliding frame to move back and forth is located between the left or right seat frame and the sliding frame. Armrests are fixed to the side of the left and right seat frames away from the sliding frame, and armrest pads are fixed to the upper side of the armrests. This utility model has the following advantages and effects: the toilet hole can be adjusted to different patients, facilitating toilet use and improving toilet comfort.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical care wheelchair. Background Technology

[0002] Wheelchairs are essential mobility tools for injured, sick, and disabled individuals, facilitating home rehabilitation, transportation, medical visits, and outdoor activities. Wheelchairs not only meet the mobility needs of people with limb disabilities and limited mobility, but more importantly, they facilitate family members' movement and care, enabling patients to exercise and participate in social activities. A typical wheelchair consists of a foldable frame, side panels, front and rear wheels, knee pads and footrests, armrests, handles and brakes, a seat, and a backrest with a medical imaging bag and urine bag hook. This type of wheelchair is clearly insufficient for patients who must be assisted or carried by caregivers to their ward or to the commode. This process not only significantly increases the workload for caregivers but also poses a risk of secondary injury for patients who are severely disabled after surgery, have serious illnesses, or fractures, and greatly diminishes their dignity.

[0003] To address this issue, some nursing wheelchairs with commode openings have appeared on the market. The position of these openings is usually fixed. However, since different patients have different body types and sitting postures, as well as different positioning requirements due to surgery or trauma, fixed commode openings are difficult to align with the physiological parts of different patients, resulting in inconvenience and poor comfort. In fact, improper positioning may even cause excrement to stain the body or clothing, failing to meet the needs of personalized clinical care. Utility Model Content

[0004] The purpose of this invention is to provide a medical care wheelchair that facilitates toileting for different patients and improves toileting comfort.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a medical care wheelchair, comprising a wheelchair frame, a seat portion, a backrest, a headrest portion, a leg support portion, and footrests disposed on the wheelchair frame, as well as casters disposed at the front end of the wheelchair frame and drive wheels disposed at the rear end of the wheelchair frame. The seat portion includes a left seat frame and a right seat frame disposed on the wheelchair frame, and a sliding frame located between the left seat frame and the right seat frame. The left seat frame is provided with a left seat cushion, the right seat frame is provided with a right seat cushion, and the sliding frame is provided with a middle seat cushion with an opening on the middle seat cushion. The device includes a toilet opening with an openable cover. Below the sliding frame is a receiving frame for placing a portable commode. The sliding frame has a lifting assembly that can drive the left and right seat frames and the receiving frame to move up and down. A driving assembly is provided between the left or right seat frame and the sliding frame, allowing the sliding frame to move back and forth between the left and right seat frames. An upwardly extending armrest is fixed to the side of the left and right seat frames away from the sliding frame, and an armrest pad is fixed to the upper side of the armrest.

[0006] By adopting the above technical solution, when a patient needs to use the toilet, the lifting component drives the left and right seat frames to move upward on the wheelchair frame, so that the upper side of the middle seat cushion on the sliding frame is lower than the upper sides of the left and right seat cushions. The drive component drives the sliding frame to move back and forth between the left and right seat frames, so that the toilet hole of the middle seat cushion is directly below the patient's physiological area. The lifting component then drives the left and right seat frames to move downward on the wheelchair frame, so that the upper side of the middle seat cushion on the sliding frame is flush with the upper sides of the left and right seat cushions. The caregiver places the commode on the receiving frame, and the lifting component drives the receiving frame to move it to a suitable height, allowing the hole cover to be opened. When the caregiver needs to empty the commode, the lifting component moves the receiving frame to its lowest position, and the caregiver removes the commode from the receiving frame. This method can meet the toilet needs of different patients, providing convenience for different patients and improving the comfort of different patients using the toilet in the wheelchair.

[0007] A further feature of this invention is that: vertically downward extending mounting plates are fixed to the sliding frame near both the left and right seat frames; the lifting assembly includes a drive rod horizontally positioned between the two mounting plates and rotatably connected to both mounting plates, and a power component capable of driving the drive rod to rotate; the drive rod has two threaded sections with opposite thread directions, and each threaded section is fitted with a matching nut; each nut has a fixing sleeve; a transverse guide plate is fixed to the lower end of the receiving frame; the guide plate is located between the two... The mounting plates are positioned between each other and their ends abut against the inner sides of the two mounting plates respectively. The guide plate is located directly above the drive rod, and a force transmission rod is provided between the two fixed sleeves and the guide plate. The two ends of the two force transmission rods are respectively hinged to the corresponding fixed sleeves and the guide plate. Each of the two mounting plates has a strip-shaped through hole extending along its length. Both ends of the guide plate are fixed with a top rod that can pass through the strip-shaped through hole on the corresponding mounting plate. The upper ends of the two top rods abut against the lower sides of the left seat frame and the right seat frame respectively.

[0008] By adopting the above technical solution, the power component drives the drive rod to rotate, and the two nuts and two force transmission rods cause the guide plate, the receiving frame, and the two top rods to move vertically up and down, which is used to drive the left seat frame, the right seat frame, and the receiving frame to move up and down. One power component can achieve this, reducing energy consumption. The entire lifting assembly has a compact structure and improves space utilization.

[0009] A further feature of this invention is that the left seat frame has a downwardly extending guide portion one, and the wheelchair frame has a limiting hole one for inserting the guide portion one; the right seat frame has a downwardly extending guide portion two, and the wheelchair frame has a limiting hole two for inserting the guide portion two.

[0010] By adopting the above technical solution, the guide part one on the left seat frame and the upper limit hole one on the wheelchair frame cooperate with each other, and the guide part two on the right seat frame and the upper limit hole two on the wheelchair frame cooperate with each other, so that the left seat frame and the right seat frame can only move up and down on the wheelchair frame, thus ensuring the normal operation of the wheelchair.

[0011] A further feature of this invention is that both the first limiting hole and the second limiting hole are through holes, the end of the first guide part has an outwardly extending annular protrusion, the outer diameter of the first annular protrusion is larger than the diameter of the first limiting hole, and the end of the second guide part has an outwardly extending annular protrusion, the outer diameter of the second annular protrusion is larger than the diameter of the second limiting hole.

[0012] By adopting the above technical solution, an annular protrusion is provided on the first guide section to prevent the left seat frame from detaching from the wheelchair frame when it moves upward, and an annular protrusion is provided on the second guide section to prevent the right seat frame from detaching from the wheelchair frame when it moves upward, thereby improving the safety of the patient when using this wheelchair.

[0013] A further feature of this invention is that: an elastic pad is fitted onto the first guide portion, the elastic pad being located between the lower end of the limiting hole of the wheelchair frame and the upper side of the annular protrusion; an elastic pad is fitted onto the second guide portion, the elastic pad being located between the lower end of the limiting hole of the second wheelchair frame and the upper side of the annular protrusion.

[0014] By adopting the above technical solution, elastic pad one and elastic pad two are set to reduce the collision between the left and right seat frames and the wheelchair frame after they move on the wheelchair frame, reduce vibration, improve patient comfort, and extend the service life of the wheelchair.

[0015] A further feature of this invention is that: the sliding frame has outwardly extending connecting blocks fixed on both the side near the left seat frame and the side near the right seat frame; the left and right seat frames each have a strip-shaped groove extending from front to back for the corresponding connecting blocks to be inserted into; the thickness of the connecting block is less than the distance between the corresponding groove walls; the lower end of the mounting plate is fixed with a roller flush with the lower outer periphery of the caster and the lower outer periphery of the drive wheel; the drive assembly includes a servo motor and a lead screw mounted on the left or right seat frame, and a nut sleeved on the lead screw; the lead screw extends along the length of the strip-shaped groove; the output shaft of the servo motor is fixedly connected to one end of the lead screw; a connecting sleeve is fixedly connected to the nut; a connecting rod extending toward the sliding frame is fixed on the connecting sleeve; the connecting rod is perpendicular to the lead screw; the sliding frame has an oblong hole for the connecting rod to be inserted into; the oblong hole extends vertically.

[0016] By adopting the above technical solution, the servo motor drives the lead screw to rotate, thereby causing the lead screw nut to drive the sliding frame to move back and forth along the length of the strip groove. The structural features of the strip groove and the corresponding connecting block on the left and right seat frames match the waist-shaped hole on the sliding frame, ensuring that when the sliding frame moves back and forth, there is a height difference between the left seat cushion on the left seat frame and the right seat cushion on the right seat frame and the middle seat cushion on the sliding seat, thus ensuring the normal operation of this wheelchair.

[0017] A further feature of this invention is that: a hinge and a locking block extending toward the middle seat are fixed at two opposite positions on the lower side of the cover, respectively; the locking block is provided with an elastic sleeve; the cover and the middle seat are hinged together by the hinge; a locking seat one and a locking seat two are provided at opposite positions on the lower side of the middle seat; a locking groove one is provided on the lower side of the locking seat for the locking block and the elastic sleeve to be inserted when the cover is in the toilet hole; a locking groove two is provided on the lower side of the locking seat two for the locking block and the elastic sleeve on the cover to be inserted when the toilet hole is open; and a pull ring is provided at the end of the locking block away from the cover.

[0018] By adopting the above technical solution, when it is necessary to open the hole cover, the nursing staff can pull down the pull ring to disengage the locking block and elastic sleeve from the first locking groove, allowing the hole cover to swing around the hinge point and embed the locking block and elastic sleeve into the second locking groove. This is very convenient, avoids the patient's excrement from getting on the hole cover, and reduces the workload of the nursing staff.

[0019] The present invention is further configured such that: the backrest and the leg support are located at the front and rear ends of the seat, respectively; the backrest and the leg support are both hinged to the wheelchair frame; two footrests are provided, and the two footrests are respectively fixed to the lower ends of the leg support on both sides; telescopic members are provided between the wheelchair frame and the backrest, as well as between the wheelchair frame and the leg support; and the headrest is inserted into the upper middle part of the backrest and is provided with a locking member for positioning it on the backrest.

[0020] By adopting the above technical solution, the angles of the backrest and leg support can be adjusted using the telescopic components between the wheelchair frame and the backrest, as well as between the wheelchair frame and the leg support. The locking relationship between the locking components and the backrest can be eliminated, the position of the backrest can be adjusted, and the comfort of the patient using this wheelchair can be improved.

[0021] A further feature of this invention is that: a controller is provided on one of the armrest frames, a storage battery and a drive motor for driving the rotation of the drive wheel are fixed on the wheelchair frame, the storage battery is electrically connected to the controller, and the drive motor, the lifting assembly, the drive assembly, and the telescopic member are all electrically connected to the controller.

[0022] By adopting the above technical solution, caregivers can operate this wheelchair using a controller, which is very convenient and reduces the workload of caregivers.

[0023] A further feature of this invention is that the wheelchair frame is provided with an IV stand, and both armrests are provided with storage bags.

[0024] By adopting the above technical solutions, the IV stand facilitates intravenous infusion for patients in this wheelchair, and the storage bag facilitates the placement of patients' belongings, thus improving the practicality of this wheelchair.

[0025] The beneficial effects of this utility model are: 1. When a patient needs to use the toilet, the power unit can drive the left and right seat frames to move upward on the wheelchair frame, making the left and right seat cushions higher than the middle seat cushion. When the servo motor drives the sliding seat to move back and forth between the left and right seat frames to adjust the position of the toilet hole, there is a height difference between the left and right seat cushions and the middle seat cushion, which improves the patient's comfort. Adjusting the position of the toilet hole can meet the toileting requirements of different patients and facilitate toileting for different patients.

[0026] 2. When it is necessary to open the hole cover, the nurse pulls down the pull ring to disengage the locking block and elastic sleeve from the first locking slot, allowing the hole cover to swing around the hinge point and insert the locking block and elastic sleeve into the second locking slot. This is very convenient and prevents patients from excreting on the hole cover, reducing the workload of the nurses.

[0027] 3. The controller can control the power components, servo motors, telescopic components, and drive motors, which is very convenient and reduces the labor intensity of nursing staff.

[0028] 4. This wheelchair is equipped with an IV stand to facilitate intravenous infusion for patients, and a storage bag to store patients' belongings, thus improving the practicality of this wheelchair. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the connection structure between the seat and the lifting assembly in this utility model.

[0031] Figure 3 This is a schematic diagram of the connection structure of the wheelchair frame, seat and drive assembly in this utility model.

[0032] Figure 4 This is a schematic diagram of the wheelchair frame in this utility model.

[0033] In the diagram, 1. Wheelchair frame; 1a. Limiting hole one; 1b. Limiting hole two; 1c. IV stand; 1d. Storage bag; 2. Seat section; 21. Left seat frame; 211. Guide part one; 211a. Annular protrusion one; 22. Right seat frame; 221. Guide part two; 221a. Annular protrusion two; 23. Sliding frame; 231. Mounting plate; 231a. Strip-shaped through hole; 231b. Roller; 232. Connecting block; 233. Waist-shaped hole; 24. Left seat cushion; 25. Right seat cushion; 26. Middle seat cushion; 261. Toilet opening; 262. Card holder one; 262a. Card slot one; 263. Card holder two; 263a. Card slot two; 27. Hole cover; 271. Locking block; 271a. Pull ring 28. Receiving frame; 29. ​​Strip groove; 3. Backrest; 4. Pillow back; 5. Leg support; 6. Foot pedal; 7. Caster; 8. Drive wheel; 9. Lifting assembly; 91. Drive rod; 911. Threaded part; 92. Power component; 93. Nut; 94. Fixing sleeve; 95. Guide plate; 96. Force transmission rod; 97. Top rod; 10. Drive assembly; 101. Servo motor; 102. Lead screw; 103. Lead nut; 104. Connecting sleeve; 105. Connecting rod; 11. Armrest frame; 111. Armrest pad; 12. Elastic pad one; 13. Elastic pad two; 14. Hinge; 15. Elastic sleeve; 16. Telescopic component; 17. Locking component; 18. Controller; 19. Battery; 20. Drive motor. Detailed Implementation

[0034] Example: A medical care wheelchair, such as Figure 1 As shown, the wheelchair includes a wheelchair frame 1, a seat 2 mounted on the wheelchair frame 1, a backrest 3, a headrest 4, a leg support 5, footrests 6, casters 7 located at the front end of the wheelchair frame 1, and drive wheels 8 located at the rear end of the wheelchair frame 1. There are two casters 7 and two drive wheels 8. The backrest 3 and the leg support 5 are located at the front and rear ends of the seat 2, respectively, and are hinged to the front and rear ends of the seat 2. There are two footrests 6, which are fixed to the lower ends of the leg support 5 on both sides. Telescopic components 16 are provided between the wheelchair frame 1 and the backrest 3, and between the wheelchair frame 1 and the leg support 5. These telescopic components 16 are electric push rods. The headrest 4 is inserted into the upper middle part of the backrest 3 and is provided with a locking component 17 for positioning it on the backrest 3. The locking component 17 is a wing bolt, which passes through the backrest 3 and has its end pressed against the headrest 4. An IV stand 1c is provided on the wheelchair frame 1.

[0035] Furthermore, such as Figures 1 to 3As shown, the seat 2 includes a left seat frame 21 and a right seat frame 22 mounted on the wheelchair frame 1, and a sliding frame 23 located between the left seat frame 21 and the right seat frame 22. The left seat frame 21 has a left seat cushion 24, and the right seat frame 22 has a right seat cushion 25. The sliding frame 23 has a middle seat cushion 26 with a toilet hole 261. The toilet hole 261 has an openable cover 27. Below the sliding frame 23, opposite the toilet hole 261, is a space for placing a portable bedpan. The receiving frame 28 and the sliding frame 23 are provided with lifting components 9 that can drive the left seat frame 21 and the right seat frame 22 and the receiving frame 28 to move up and down. A driving component 10 is provided between the left seat frame 21 or the right seat frame 22 and the sliding frame 23. The driving component 10 can enable the sliding frame 23 to move back and forth between the left seat frame 21 and the right seat frame 22. Alternatively, the driving component 10 can be provided between the left seat frame 21 and the right seat frame 22 and the sliding frame 23, so that the force on the sliding frame 23 is more even when it moves back and forth.

[0036] Furthermore, such as Figures 1 to 4 As shown, the sliding frame 23 has outwardly extending connecting blocks 232 fixed on both the side near the left seat frame 21 and the side near the right seat frame 22. Both the left and right seat frames 21 and 22 have strip-shaped grooves 29 extending from front to back for the corresponding connecting blocks 232 to be inserted into. The thickness of the connecting block 232 is less than the distance between the corresponding groove walls. The left seat frame 21 has a downwardly extending guide portion 211, and the wheelchair frame 1 has a limiting hole 1a for the guide portion 211 to be inserted into. The right seat frame 22 has a downwardly extending guide portion 221, and the wheelchair frame 1 has a limiting hole 1b for the guide portion 221 to be inserted into. The limiting holes 1a and 1b... All limiting holes 1b are through holes. The end of the guide part 211 has an outwardly extending annular protrusion 211a, the outer diameter of which is larger than the diameter of the limiting hole 1a. The end of the guide part 221 has an outwardly extending annular protrusion 221a, the outer diameter of which is larger than the diameter of the limiting hole 1b. An elastic pad 12 is fitted on the guide part 211. The elastic pad 12 is located between the lower end of the limiting hole 1a of the wheelchair frame 1 and the upper side of the annular protrusion 211a. An elastic pad 13 is fitted on the guide part 221. The elastic pad 13 is located between the lower end of the limiting hole 1b of the wheelchair frame 1 and the upper side of the annular protrusion 221a.

[0037] Furthermore, such as Figure 1 and Figure 2As shown, the sliding frame 23 has vertically downward extending mounting plates 231 fixed near the left seat frame 21 and the right seat frame 22. The lower end of the mounting plate 231 is fixed with rollers 231b that are flush with the lower outer periphery of the caster 7 and the lower outer periphery of the drive wheel 8. The lifting assembly 9 includes a drive rod 91 horizontally positioned between the two mounting plates 231 and rotatably connected to both mounting plates 231, and a power component 92 capable of driving the drive rod 91 to rotate. The power component 92 is a forward and reverse reversing motor. The drive rod 91 has two threaded sections 911 with opposite thread directions. Each threaded section 911 is fitted with a matching nut 93, and each nut 93 has a fixing sleeve 94. The lower end of the receiving frame 28 is fixed... There is a transverse guide plate 95, which is located between two mounting plates 231 and its two ends abut against the inner sides of the two mounting plates 231 respectively. The guide plate 95 is located directly above the drive rod 91, and a force transmission rod 96 is provided between the two fixing sleeves 94 and the guide plate 95. The two ends of the two force transmission rods 96 are respectively hinged to the corresponding fixing sleeves 94 and the guide plate 95. Each of the two mounting plates 231 has a strip-shaped through hole 231a extending along its length. Both ends of the guide plate 95 are fixed with a top rod 97 that can pass through the strip-shaped through hole 231a on the corresponding mounting plate 231. The upper ends of the two top rods 97 abut against the lower sides of the left seat frame 21 and the right seat frame 22 respectively. Here, the top rod 97 is an L-shaped rod.

[0038] Furthermore, such as Figure 3 As shown, the drive assembly 10 includes a servo motor 101 and a lead screw 102 mounted on the left seat frame 21 or the right seat frame 22, and a lead screw nut 103 sleeved on the lead screw 102. The lead screw 102 extends along the length of the strip groove 29. The output shaft of the servo motor 101 is fixedly connected to one end of the lead screw 102. A connecting sleeve 104 is fixedly connected to the lead screw nut 103. A connecting rod 105 extending toward the sliding frame 23 is fixed on the connecting sleeve 104. The connecting rod 105 is perpendicular to the lead screw 102. The sliding frame 23 has an oblong hole 233 for inserting the connecting rod 105. The oblong hole 233 extends vertically.

[0039] Furthermore, such as Figure 3 As shown, a hinge 14 and a locking block 271 extending toward the middle seat 26 are fixed at two opposite positions on the lower side of the cover 27. The locking block 271 is provided with an elastic sleeve 15. The cover 27 and the middle seat 26 are hinged together by the hinge 14. The middle seat 26 is provided with a locking seat 1 262 and a locking seat 263 at opposite positions on the lower side. The locking seat 1 262 has a locking groove 262a on its lower side for the locking block 271 and the elastic sleeve 15 to be inserted when the cover 27 is inside the toilet hole 261. The locking seat 263 has a locking groove 263a on its lower side for the locking block 271 and the elastic sleeve 15 to be inserted when the toilet hole 261 is open. The end of the locking block 271 away from the cover 27 is provided with a pull ring 271a.

[0040] Furthermore, Figures 1 to 3 As shown, both the left seat frame 21 and the right seat frame 22 have upwardly extending armrest frames 11 fixed on the side away from the sliding frame 23. Armrest pads 111 are fixed on the upper side of the armrest frames 11. Both armrest frames 11 are equipped with storage bags 1d. One of the armrest frames 11 is equipped with a controller 18. A battery 19 and a drive motor 20 for driving the drive wheel 8 are fixed on the wheelchair frame 1. There are two drive motors 20. The battery 19 is electrically connected to the controller 18. The drive motor 20, the power component 92, the servo motor 101, and the telescopic component 16 are all electrically connected to the controller 18.

[0041] Working principle: When the patient needs to use the toilet, the caregiver operates the controller 18 to control the power unit 92. The power unit 92 drives the left seat frame 21 and the right seat frame 22 to move upward on the wheelchair frame 1, so that the upper side of the middle seat cushion 26 on the sliding frame 23 is lower than the upper side of the left seat cushion 24 and the right seat cushion 25. The servo motor 101 drives the sliding frame 23 to move back and forth between the left seat frame 21 and the right seat frame 22, so that the toilet hole 261 of the middle seat cushion 26 is directly below the patient's genitals. The power unit 92 drives the left seat frame 21 and the right seat frame 22 to move downward on the wheelchair frame 1, so that the upper side of the middle seat cushion 26 on the sliding frame 23 is lower than the upper side of the left seat cushion 24 and the right seat cushion 25. 5. With the upper sides aligned, the caregiver places the movable bedpan on the receiving frame 28. The power unit 92 drives the receiving frame 28 to move to a suitable height. When the opening cover 27 needs to be opened, the caregiver pulls down the pull ring 271a, causing the locking block 271 and the elastic sleeve 15 to disengage from the first locking groove 262a, allowing the opening cover 27 to swing around the hinge point and insert the locking block 271 and the elastic sleeve 15 into the second locking groove 263a. When the caregiver needs to tilt the bedpan, the power unit 92 moves the receiving frame 28 to its lowest position, and the caregiver removes the movable bedpan from the receiving frame 28. This system can meet the toileting needs of different patients, improving the convenience and comfort of toileting in wheelchairs for different patients.

Claims

1. A medical care wheelchair, characterized in that: The wheelchair includes a wheelchair frame (1), a seat (2) mounted on the wheelchair frame (1), a backrest (3), a headrest (4), a leg support (5), and footrests (6), as well as casters (7) mounted on the front end of the wheelchair frame (1) and drive wheels (8) mounted on the rear end of the wheelchair frame (1). The seat (2) includes a left seat frame (21) and a right seat frame (22) mounted on the wheelchair frame (1), and a sliding frame (23) located between the left seat frame (21) and the right seat frame (22). The left seat frame (21) is provided with a left seat cushion (24), and the right seat frame (22) is provided with a right seat cushion (25). The sliding frame (23) is provided with a middle seat cushion (26), and the middle seat cushion (26) is provided with a toilet hole (261). The toilet hole (261) is provided with an opening for opening. The sliding frame (23) has a cover (27) for placing a portable toilet bowl. Below the sliding frame (23) is a receiving frame (28) for placing a portable toilet bowl, which is directly opposite the toilet hole (261). The sliding frame (23) is provided with a lifting component (9) that can drive the left seat frame (21), the right seat frame (22) and the receiving frame (28) to move up and down. A driving component (10) is provided between the left seat frame (21) or the right seat frame (22) and the sliding frame (23). The driving component (10) can make the sliding frame (23) move back and forth between the left seat frame (21) and the right seat frame (22). An upwardly extending armrest (11) is fixed on the side of the left seat frame (21) and the right seat frame (22) away from the sliding frame (23). An armrest pad (111) is fixed on the upper side of the armrest (11).

2. The medical care wheelchair according to claim 1, characterized in that: The sliding frame (23) has vertically downward extending mounting plates (231) fixed near the left seat frame (21) and the right seat frame (22). The lifting assembly (9) includes a drive rod (91) horizontally arranged between the two mounting plates (231) and rotatably connected to both mounting plates (231), and a power component (92) capable of driving the drive rod (91) to rotate. The drive rod (91) has two threaded sections (911) with opposite thread directions. Each of the two threaded sections (911) is fitted with a matching nut (93). Each nut (93) is provided with a fixing sleeve (94). The lower end of the receiving frame (28) is fixed with a transverse guide plate (95). The guide plate (95) is located between the two mounting plates (231). 1) The guide plate (95) is located directly above the drive rod (91), and a force transmission rod (96) is provided between the two fixed sleeves (94) and the guide plate (95). The two ends of the two force transmission rods (96) are respectively hinged to the corresponding fixed sleeves (94) and the guide plate (95). The two mounting plates (231) are each provided with a strip-shaped through hole (231a) extending along their length direction. The two ends of the guide plate (95) are each fixed with a top rod (97) that can pass through the strip-shaped through hole (231a) on the corresponding mounting plate (231). The upper ends of the two top rods (97) are respectively abutted against the lower side of the left seat frame (21) and the right seat frame (22).

3. A medical care wheelchair according to claim 2, characterized in that: The left seat frame (21) has a downwardly extending guide portion 1 (211), and the wheelchair frame (1) has a limiting hole 1 (1a) for inserting the guide portion 1 (211). The right seat frame (22) has a downwardly extending guide portion 2 (221), and the wheelchair frame (1) has a limiting hole 2 (1b) for inserting the guide portion 2 (221).

4. A medical care wheelchair according to claim 3, characterized in that: Both the limiting hole one (1a) and the limiting hole two (1b) are through holes. The end of the guide part one (211) has an outwardly extending annular protrusion one (211a), the outer diameter of which is larger than the diameter of the limiting hole one (1a). The end of the guide part two (221) has an outwardly extending annular protrusion two (221a), the outer diameter of which is larger than the diameter of the limiting hole two (1b).

5. A medical care wheelchair according to claim 4, characterized in that: An elastic pad (12) is fitted on the first guide part (211). The elastic pad (12) is located between the lower end of the first limiting hole (1a) of the wheelchair frame (1) and the upper side of the first annular protrusion (211a). An elastic pad (13) is fitted on the second guide part (221). The elastic pad (13) is located between the lower end of the second limiting hole (1b) of the wheelchair frame (1) and the upper side of the second annular protrusion (221a).

6. A medical care wheelchair according to claim 3, 4, or 5, characterized in that: The sliding frame (23) has outwardly extending connecting blocks (232) fixed on both the side near the left seat frame (21) and the side near the right seat frame (22). Both the left seat frame (21) and the right seat frame (22) have strip-shaped grooves (29) extending from front to back for the corresponding connecting blocks (232) to be inserted into. The thickness of the connecting block (232) is less than the distance between the corresponding groove walls. The lower end of the mounting plate (231) is fixed with a roller (231b) flush with the lower outer periphery of the caster (7) and the lower outer periphery of the drive wheel (8). The drive assembly (10) includes components mounted on the left seat frame (21) or the right seat frame. (22) includes a servo motor (101) and a lead screw (102) and a nut (103) sleeved on the lead screw (102). The lead screw (102) extends along the length of the strip groove (29). The output shaft of the servo motor (101) is fixedly connected to one end of the lead screw (102). A connecting sleeve (104) is fixedly connected to the nut (103). A connecting rod (105) extending toward the sliding frame (23) is fixed on the connecting sleeve (104). The connecting rod (105) is perpendicular to the lead screw (102). A waist-shaped hole (233) is provided on the sliding frame (23) for the connecting rod (105) to be inserted. The length of the waist-shaped hole (233) extends vertically.

7. A medical care wheelchair according to any one of claims 1 to 5, characterized in that: A hinge (14) and a locking block (271) extending toward the middle cushion (26) are fixed at two opposite positions on the lower side of the hole cover (27). The locking block (271) is provided with an elastic sleeve (15). The hole cover (27) and the middle cushion (26) are hinged together by the hinge (14). The middle cushion (26) is provided with a locking seat one (262) and a locking seat two (263) at opposite positions on the lower side. The locking seat one (262) has an opening on its lower side... When the cover (27) is located inside the toilet hole (261), a slot (262a) is provided for the locking block (271) and the elastic sleeve (15) to be inserted. The lower side of the second card seat (263) is provided with a slot (263a) for the locking block (271) and the elastic sleeve (15) on the cover (27) to be inserted when the toilet hole (261) is opened. A pull ring (271a) is provided at the end of the locking block (271) away from the cover (27).

8. A medical care wheelchair according to claim 1, characterized in that: The backrest (3) and the leg support (5) are located at the front and rear ends of the seat (2), respectively. The backrest (3) and the leg support (5) are hinged to the wheelchair frame (1). There are two foot pedals (6), which are fixed to the lower ends of the leg support (5) on both sides. There are telescopic members (16) between the wheelchair frame (1) and the backrest (3) and between the wheelchair frame (1) and the leg support (5). The headrest (4) is inserted into the middle of the upper end of the backrest (3) and is provided with a locking member (17) for positioning it on the backrest (3).

9. A medical care wheelchair according to claim 8, characterized in that: One of the armrest frames (11) is equipped with a controller (18), and a battery (19) and a drive motor (20) for driving the drive wheel (8) are fixed on the wheelchair frame (1). The battery (19) is electrically connected to the controller (18), and the drive motor (20), the lifting assembly (9), the drive assembly (10), and the telescopic member (16) are all electrically connected to the controller (18).

10. A medical care wheelchair according to claim 1, 8, or 9, characterized in that: The wheelchair frame (1) is equipped with an IV stand (1c), and both armrests (11) are equipped with storage bags (1d).

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