Adjustable nursing wheelchair for patient transfer

Abstract

The utility model relates to the technical field of medical instruments, in particular to an adjustable nursing wheelchair for patient transfer, a body comprises a base and a seat plate mounted on the base, a backup plate and a leg plate are rotatably connected to two sides of the seat plate, transfer mechanisms are mounted on the surfaces of the seat plate, the backup plate and the leg plate, and the transfer mechanisms are connected through movable connecting rods. A rotary lifting mechanism for driving the seat plate to lift and rotate is also mounted on the base; the transfer mechanism comprises a supporting plate embedded in the surfaces of the seat plate, the backup plate and the leg plate, a plurality of supporting rods are rotationally installed on the front side and the rear side of the supporting plate, the corresponding supporting rods are connected through connecting rods, and the two sides of the connecting rods are rotationally connected with the two sides of the bottoms of the supporting rods through hydraulic telescopic rods; the rotary lifting mechanism comprises a rotating part and a lifting part, and the rotating part comprises a rotating disc rotationally connected to the bottom of the seat plate. The labor intensity of a nurse for carrying a patient is relieved, and the transferring difficulty of the patient between a wheelchair and a bed is lowered.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an adjustable nursing wheelchair for patient transportation. Background Art

[0002] The wheelchair seats of existing wheelchairs are fixed and cannot be rotated. When transferring a patient, the angle between the wheelchair and the bed or other planes needs to be specially adjusted, and the patient needs to have a certain hip-lifting ability or completely rely on the caregiver to use his or her own strength to transfer the wheelchair between the bed or other planes.

[0003] Existing wheelchairs cannot meet the needs of transferring patients who are too heavy and cannot lift their hips or sit independently due to illness. The caregiver is completely required to rely on his or her own strength to carry out the transfer activities, which places high physical demands on the caregiver, and both the patient and the caregiver are easily injured, posing a safety hazard. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the present application provides an adjustable nursing wheelchair for patient transportation.

[0005] The adjustable nursing wheelchair for patient transfer provided in this application adopts the following technical solution:

[0006] An adjustable nursing wheelchair for patient transfer comprises a main body, the main body comprises a base and a seat plate installed on the base, wherein both sides of the seat plate are rotatably connected with a back plate and a leg plate, the seat plate, the back plate and the leg plate are all installed with a transfer mechanism, and the transfer mechanisms are connected by a movable connecting rod, and a rotating lifting mechanism for driving the seat plate to lift and rotate is also installed on the base; the transfer mechanism comprises a support plate embedded in the surface of the seat plate, the back plate and the leg plate, wherein a plurality of support rods are rotatably installed on the front and rear sides of the support plate, and the corresponding support rods are connected by connecting rods, and both sides of the connecting rods are connected to the bottom of the support rods by hydraulic telescopic rods. The two sides are rotatably connected; the rotating lifting mechanism includes a rotating part and a lifting part, wherein the rotating part includes a turntable rotatably connected to the bottom of the seat plate, the protrusion in the center of the turntable is rotatably connected to the inner wall of the groove in the center of the bottom of the seat plate through bearings, and the top of the turntable located around the protrusion is rotatably connected to the bottom of the seat plate through bearings; the lifting part includes two groups of rotating rods connecting the bottom of the turntable and the top of the base, wherein the rotating rods are rotatably connected through the center, one end of the rotating rod is rotatably connected to the turntable and the base, and the other end is slidably installed in the slide groove on the turntable and the base, and a power mechanism for driving the end of the rotating rod to move is installed in the slide groove.

[0007] By adopting the above technical solution, the backrest and leg plates are installed on the front and back sides of the seat plate installed on the base, and the patient's sitting and lying positions can be switched by rotating the backrest and leg plates with the base plate. The support rod at the bottom of the support plate in the transfer mechanism moves left and right under the action of the hydraulic telescopic rods on both sides, thereby driving the support plate to move sideways and reset, and can move the patient lying on the support plate to the side by a certain distance, so as to facilitate the transfer of the patient from the wheelchair to the bed. In addition, the rotating lifting mechanism installed on the base can control the rotation and lifting of the seat plate as a whole, so as to facilitate the adjustment of the patient to the corresponding position. The rotating part rotates through the bearing and the protrusion on the top of the turntable in the groove opened at the bottom of the seat plate, and rotates with the bearings on the bottom of the seat plate and the top surface of the turntable. The double bearing design can rotate stably. The lifting part drives the end of the rotating rod to move in the slide groove through the power mechanism, so that the center of the rotating rod rotates and connects to cooperate to lift the turntable, thereby adjusting the height of the seat plate.

[0008] Preferably, a supporting mechanism is also installed at the central bottom of the turntable, and the supporting mechanism includes an I-shaped block at the top and limiting rods rotatably connected on both sides of the bottom of the I-shaped block, and the bottom of the limiting rod is meshed with the limiting rack at the top of the base through a gear.

[0009] Preferably, a locking mechanism for locking the gear is also installed on the limit rod, including a mounting block installed at the end of the limit rod, wherein a mounting groove is opened on the side of the mounting block close to the gear, wherein a limit block with a rack at the end is slidably installed in the mounting groove, and the end of the limit block is driven by a screw.

[0010] Preferably, the gears on both sides are rotatably mounted on a mounting frame at the bottom of the limit rod, wherein the mounting block is located on the upper side of the mounting frame and the two are integrally formed, a rack is provided at one end of the limit block, and the other end is rotatably connected to the screw rod, and an internal thread is correspondingly provided in the mounting block through which the screw rod passes.

[0011] By adopting the above technical solution, the support mechanism installed in the center of the turntable can support and reinforce the height through the support mechanism after the lifting part adjusts the height of the wheelchair. The I-shaped block is used to support the turntable. During the rise of the turntable, the gears at the bottom of the limit rods on both sides of the I-shaped block are meshed and transmitted with the limit racks on the base. After adjusting to the required height, the gears can be locked by the locking mechanism, so that the support mechanism has a supporting function. When the locking mechanism is used, by rotating the screw connected to the mounting block, the screw cooperates with the internal thread inside it to drive the limit block with the rack to move in the mounting groove to lock and unlock the gear. The mounting frame and the mounting block used to install the gear are integrally formed, which effectively improves the overall strength of the support mechanism.

[0012] Preferably, the seat plate, back plate and leg plate are connected by support rods thereon, wherein corresponding movable connecting rods and connecting rod grooves are provided at the connection points, and the movable connecting rods and connecting rod grooves on a single support plate are distributed at intervals.

[0013] By adopting the above technical solution, the movable connecting rods and connecting grooves on the seat plate, the back plate and the leg plate are connected to each other when the three are horizontal to form a whole, which is convenient for supporting the patient for transfer and has better safety.

[0014] Preferably, the support plate is clamped in the surface grooves of the seat plate, the back plate and the leg plate, and a sealing ring is installed around the support plate and between the surface grooves.

[0015] Preferably, a slope is provided at the connection between the left and right sides of the surface groove and the support plate, and sealing grooves for installing sealing rings are installed on the slope and the front and rear inner sides of the surface groove.

[0016] By adopting the above technical solution, the support plate is clamped in the surface groove, and a sealing groove for installing a sealing ring is provided between the two, which can prevent dust, water and other impurities from entering the surface groove when the patient uses the wheelchair in a sitting state in daily life, thereby affecting the life of the transfer mechanism. In addition, slopes are provided on the left and right sides of the surface groove, which can make the support plate more smoothly transfer the patient to the side.

[0017] Preferably, the power mechanism adopts a pneumatic telescopic device or a hydraulic telescopic device.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. This application facilitates the transfer of wheelchairs. The seat surface can rotate 360°, and there is no need to deliberately adjust the angle between the wheelchair and the transfer plane. The seat cushion can be raised to adapt to different planes to meet the needs of patients transferring to planes of different heights;

[0020] 2. The support rod at the bottom of the support plate in the transfer mechanism of the present invention moves left and right under the action of the hydraulic telescopic rods on both sides thereof, thereby driving the support plate to move sideways and reset, and being able to move the patient lying on the support plate sideways by a certain distance, making it easier to transfer the patient from the wheelchair to the bed, reducing the need for caregivers or family members to carry the patient, and also reducing the risk of injury to the patient during the transfer process;

[0021] 3. This application greatly improves the self-help ability of the elderly and reduces the labor intensity of caregivers; it is more suitable for patients with high paraplegia, overweight patients, and patients whose caregivers lack physical strength to transfer wheelchairs and beds or other flat surfaces, reducing space constraints and dependence on the physical strength of caregivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the sitting posture of an adjustable nursing wheelchair used for patient transfer;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 It is a schematic diagram of the lying position of an adjustable nursing wheelchair used for patient transportation;

[0025] Figure 4 It is a schematic diagram of the structure of an adjustable nursing wheelchair transport mechanism for patient transport;

[0026] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0027] Figure 6 It is an exploded view of an adjustable nursing wheelchair in a lying position for patient transport;

[0028] Figure 7 It is an exploded view of the bottom and side of an adjustable nursing wheelchair in a lying position for patient transport.

[0029] Explanation of the accompanying drawings: 1. body; 11. base; 111. limit rack; 12. seat plate; 121. groove; 13. back plate; 14. leg plate; 15. surface groove; 151. sealing ring; 152. sealing groove; 2. transfer mechanism; 21. movable connecting rod; 22. connecting rod groove; 23. support plate; 231. support rod; 232. connecting rod; 233. hydraulic telescopic rod; 3. rotating and lifting mechanism; 31. rotating part; 311. turntable; 312. protrusion; 32. lifting part; 321. rotating rod; 322. slide groove; 323. power mechanism; 4. supporting mechanism; 41. I-shaped block; 42. limit rod; 421. gear; 5. locking mechanism; 51. mounting block; 511. mounting groove; 52. limit block; 53. mounting frame; 54. screw. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-7 This application is described in further detail.

[0031] The embodiment of the present application discloses an adjustable nursing wheelchair for patient transportation.

[0032] See attached Figure 1-Figure 7, an adjustable nursing wheelchair for patient transportation, comprising a body 1, the body 1 comprising a base 11 and a seat plate 12 installed on the base 11, wherein both sides of the seat plate 12 are rotatably connected with a back plate 13 and a leg plate 14, and the surfaces of the seat plate 12, the back plate 13 and the leg plate 14 are all installed with a transport mechanism 2, and the transport mechanisms 2 are connected by a movable connecting rod 21, and the base 11 is also installed with a rotating lifting mechanism 3 for driving the seat plate 12 to rise and fall and rotate; a transport mechanism 2, the transport mechanism 2 comprises a support plate 23 embedded in the surfaces of the seat plate 12, the back plate 13 and the leg plate 14, wherein a plurality of support rods 231 are rotatably installed on the front and rear sides of the support plate 23, and the corresponding support rods 231 are connected by connecting rods 232, and both sides of the connecting rod 232 are rotatably connected to the bottom sides of the support rod 231 through hydraulic telescopic rods 233 The rotary lifting mechanism 3 comprises a rotating part 31 and a lifting part 32, wherein the rotating part 31 comprises a turntable 311 rotatably connected to the bottom of the seat plate 12, and the protrusion 312 at the center of the turntable 311 is rotatably connected to the inner wall of the groove 121 at the center of the bottom of the seat plate 12 through bearings, and the top of the turntable 311 located around the protrusion 312 is rotatably connected to the bottom of the seat plate 12 through bearings; the lifting part 32 comprises two groups of rotating rods 321 connecting the bottom of the turntable 311 and the top of the base 11, wherein the rotating rods 321 are rotatably connected through the center, one end of the rotating rod 321 is rotatably connected to the turntable 311 and the base 11, and the other end is slidably installed in a slide groove 322 on the turntable 311 and the base 11, and a power mechanism 323 for driving the end of the rotating rod 321 to move is installed in the slide groove 322. The seat plate 12 installed on the base 11 is equipped with a back plate 13 and a leg plate 14 on both sides. The patient's sitting and lying positions can be switched by rotating the back plate 13 and the leg plate 14 with the bottom plate. The support rod 231 at the bottom of the support plate 23 in the transfer mechanism 2 moves left and right under the action of the hydraulic telescopic rods 233 on both sides, thereby driving the support plate 23 to move sideways and reset, and can move the patient lying on the support plate 23 to the side by a certain distance, so as to facilitate the transfer of the patient from the wheelchair to the bed. In addition, the rotating lifting mechanism 3 installed on the base 11 can control the rotation and lifting of the seat plate 12 as a whole, so as to facilitate the adjustment of the patient to the corresponding position. The rotating part rotates through the groove 121 opened at the bottom of the seat plate 12 through the bearing and the protrusion 312 on the top of the turntable 311, and rotates with the bearings on the bottom of the seat plate 12 and the top surface of the turntable 311. The double bearing design can rotate stably. The lifting part 32 drives the end of the rotating rod 321 to move in the slide slot 322 through the power mechanism 323, so that the center of the rotating rod 321 rotates to connect and lift the turntable 311, thereby adjusting the height of the seat plate 12.

[0033] See attached Figure 1 , Figure 2 , Figure 3 and Figure 3The center bottom of the turntable 311 is also equipped with a support mechanism 4, which includes an I-shaped block 41 at the top and a limit rod 42 rotatably connected to the bottom of the I-shaped block 41 on both sides. The bottom of the limit rod 42 is meshed with the limit rack 111 at the top of the base 11 through a gear 421. The limit rod 42 is also equipped with a locking mechanism 5 for locking the gear 421, including a mounting block 51 installed at the end of the limit rod 42, wherein a mounting groove 511 is provided on the side of the mounting block 51 close to the gear 421, wherein a limit block 52 with a rack at the end is slidably installed in the mounting groove 511, and the end of the limit block 52 is driven by a screw 54. The gear 421 is rotatably installed on the mounting frame 53 at the bottom of the limit rod 42 on both sides, wherein the mounting block 51 is located on the upper side of the mounting frame 53 and the two are integrally formed, one end of the limit block 52 is provided with a rack, and the other end is rotatably connected to the screw 54, and the mounting block 51 through which the screw 54 passes is correspondingly provided with an internal thread. The support mechanism 4 installed at the center of the turntable 311 can support and reinforce the height after the lifting part 32 adjusts the height of the wheelchair. The I-shaped block 41 is used to support the turntable 311. During the rise of the turntable 311, the gears 421 at the bottom of the limit rods 42 on both sides of the I-shaped block 41 are meshed and transmitted with the limit racks 111 on the base 11. After adjusting to the required height, the gears 421 can be locked by the locking mechanism 5, so that the support mechanism 4 has a supporting function. When the locking mechanism 5 is used, by rotating the screw 54 connected to the mounting block 51, the screw 54 cooperates with the internal thread inside it, driving the limit block 52 with the rack to move in the mounting groove 511, and locking and unlocking the gear 421. The mounting frame 53 used to install the gear 421 and the mounting block 51 are integrally formed, which effectively improves the overall strength of the support mechanism 4.

[0034] Refer to the attached Figure 1 and Figure 5 The seat plate 12, the back plate 13 and the leg plate 14 are connected by the support rods 231 thereon, wherein corresponding movable connecting rods 21 and connecting rod grooves 22 are provided at the connection points, and the movable connecting rods 21 and connecting rod grooves 22 on a single support plate 23 are distributed at intervals. The movable connecting rods and connecting grooves on the seat plate 12, the back plate 13 and the leg plate 14 are mutually connected and connected when the three are horizontal to form a whole, which is convenient for supporting the patient for transfer and has better safety.

[0035] Refer to the attached Figure 1 , Figure 3 , Figure 4 and Figure 5, the support plate 23 is clamped in the surface groove 15 of the seat plate 12, the back plate 13 and the leg plate 14, and a sealing ring 151 is installed between the support plate 23 and the surface groove 15. Slopes are provided at the connection between the left and right sides of the surface groove 15 and the support plate 23, and sealing grooves 152 for installing the sealing ring 151 are installed on the slopes and the front and rear inner sides of the surface groove 15. By adopting the above technical solution, the support plate 23 is clamped in the surface groove 15, and a sealing groove 152 for installing the sealing ring 151 is provided between the two, which can prevent dust, water and other impurities from entering the surface groove 15 when the patient uses the wheelchair in a sitting state in daily life, affecting the life of the transfer mechanism 2. And the slopes are provided on the left and right sides of the surface groove 15, which can make the support plate 23 more smoothly transfer the patient to the side. The power mechanism 323 adopts a pneumatic telescopic device or a hydraulic telescopic device.

[0036] Working principle: The patient sits on the seat plate 12 of the wheelchair body 1, with his back against the backrest 13 and his legs against the leg plates 14. When the patient needs to be transferred from the wheelchair to the bed, the backrest 13 and the leg plates 14 are rotated to the level of the seat plate 12, and the movable connecting rod 21 in the transfer mechanism 2 slides out and connects with the corresponding sealing groove 152, connecting the seat plate 12, the backrest 13 and the leg plates 14 to form a whole. At this time, the hydraulic telescopic rod 233 in the driving rotation mechanism is extended to lift the support rod 231 at the bottom of the support plate 23, and the telescopic rod on the other side is contracted, thereby moving the support plate 23 to the side by an end distance, so that the support plate 23 on the wheelchair is moved to the bed board, and the patient can be transferred to the bed by lying on his side. According to the above principle, the patient can also be transferred from the bed to the wheelchair accordingly.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable nursing wheelchair for patient transportation, characterized in that: The invention comprises a main body (1), wherein the main body (1) comprises a base (11) and a seat plate (12) mounted on the base (11), wherein two sides of the seat plate (12) are rotatably connected with a back plate (13) and a leg plate (14), and transfer mechanisms (2) are installed on the surfaces of the seat plate (12), the back plate (13) and the leg plate (14), and the transfer mechanisms (2) are connected by a movable connecting rod (21), and a rotating lifting mechanism (3) for driving the seat plate (12) to rise and fall and rotate is also installed on the base (11); The transfer mechanism (2) comprises a support plate (23) embedded in the surface of a seat plate (12), a back plate (13) and a leg plate (14), wherein a plurality of support rods (231) are rotatably mounted on the front and rear sides of the support plate (23), and the corresponding support rods (231) are connected by connecting rods (232), and both sides of the connecting rods (232) are rotatably connected to the bottom sides of the support rods (231) by hydraulic telescopic rods (233); A rotary lifting mechanism (3), the rotary lifting mechanism (3) comprising a rotary part (31) and a lifting part (32), wherein the rotary part (31) comprises a turntable (311) rotatably connected to the bottom of a seat plate (12), the protrusion (312) at the center of the turntable (311) being rotatably connected to the inner wall of a groove (121) at the center of the bottom of the seat plate (12) via bearings, and the top of the turntable (311) located around the protrusion (312) being rotatably connected to the bottom of the seat plate (12) via bearings; The lifting part (32) comprises two groups of rotating rods (321) connected to the bottom of the rotating disk (311) and the top of the base (11), wherein the rotating rods (321) are connected to each other by a central rotation, one end of the rotating rod (321) is rotatably connected to the rotating disk (311) and the base (11), and the other end is slidably installed in a slide groove (322) on the rotating disk (311) and the base (11), and a power mechanism (323) for driving the end of the rotating rod (321) to move is installed in the slide groove (322).

2. The adjustable nursing wheelchair for patient transportation according to claim 1, characterized in that: A support mechanism (4) is also installed at the central bottom of the rotating disk (311), and the support mechanism (4) comprises an I-shaped block (41) at the top and limiting rods (42) rotatably connected at both sides of the bottom of the I-shaped block (41), and the bottom of the limiting rod (42) is meshed with a limiting rack (111) at the top of the base (11) through a gear (421).

3. The adjustable nursing wheelchair for patient transportation according to claim 2, characterized in that: The limit rod (42) is also provided with a locking mechanism (5) for locking the gear (421), comprising a mounting block (51) mounted at the end of the limit rod (42), wherein a mounting groove (511) is provided on a side of the mounting block (51) close to the gear (421), wherein a limit block (52) with a rack at the end is slidably mounted in the mounting groove (511), and the end of the limit block (52) is driven by a screw rod (54).

4. The adjustable nursing wheelchair for patient transportation according to claim 3, characterized in that: The gear (421) is rotatably mounted on both sides of a mounting frame (53) at the bottom of the limiting rod (42), wherein the mounting block (51) is located on the upper side of the mounting frame (53) and the two are integrally formed, one end of the limiting block (52) is provided with a rack, and the other end is rotatably connected to a screw rod (54), and an internal thread is correspondingly provided in the mounting block (51) through which the screw rod (54) passes.

5. The adjustable nursing wheelchair for patient transportation according to claim 1, characterized in that: The seat plate (12), the back plate (13) and the leg plate (14) are connected via the support rods (231) thereon, wherein corresponding movable connecting rods (21) and connecting rod grooves (22) are provided at the connection points, and the movable connecting rods (21) and connecting rod grooves (22) on a single support plate (23) are distributed at intervals.

6. The adjustable nursing wheelchair for patient transportation according to claim 1, characterized in that: The support plate (23) is clamped in the surface grooves (15) of the seat plate (12), the back plate (13) and the leg plate (14), and a sealing ring (151) is installed around the support plate (23) and between the surface grooves (15).

7. The adjustable nursing wheelchair for patient transportation according to claim 6, characterized in that: Slopes are provided at the connection points between the left and right sides of the surface groove (15) and the support plate (23), and sealing grooves (152) for installing sealing rings (151) are installed on the slopes and the front and rear inner sides of the surface groove (15).

8. The adjustable nursing wheelchair for patient transportation according to claim 1, characterized in that: The power mechanism (323) adopts a pneumatic telescopic device or a hydraulic telescopic device.

Images