Intelligent stretcher and wheelchair lifting multifunctional device

Abstract

The invention provides an intelligent stretcher and wheelchair lifting multifunctional device which comprises a seat plate, two gear rods are rotationally arranged in the seat plate, and the two ends of each gear rod protrude out of the two sides of the seat plate respectively; the two upper limb frames are fixedly connected to the two ends of one gear rod; the two lower limb frames are fixedly connected to the two ends of the other gear rod; the rollers are mounted at the ends, far away from the seat plate, of the upper limb frame and the lower limb frame; the control mechanism is used for driving the two gear rods to independently rotate and self-lock; the back plate and the lower limb plate are both installed on the seat plate in a hinged mode and arranged oppositely, and the lower limb plate is erected on the lower limb frame; the locking mechanism is arranged on the seat plate and is used for locking the turning angle of the back plate on the seat plate; and the two armrests are fixedly connected to the two sides of the back plate respectively. By unfolding and supporting the upper limb frame and the lower limb frame, the stretcher, the stretcher bed and the wheelchair can be switched, and people having difficulty in moving can be easily transferred through the switching of the three states.

Description

Technical Field

[0001] This application relates to the technical field of medical rehabilitation assistance devices, and particularly to an intelligent stretcher wheelchair lifting multifunctional device. Background Art

[0002] As an important auxiliary device for the elderly and people with inconvenient legs and feet such as the injured, the functionality and convenience of wheelchairs directly affect the quality of life of users. In current use, wheelchairs are often limited to "fixed seats", lacking functions of lifting adjustment and lying flat. As a result, on the one hand, it takes time and effort for people with inconvenient mobility to transfer to wheelchairs and there are safety hazards. On the other hand, sitting for a long time can lead to poor blood circulation in the lower limbs, and the lumbar spine is severely compressed, easily causing lumbar muscle strain, lumbar disc herniation and cervical spondylosis, and may exacerbate muscle atrophy or joint stiffness, making it difficult to meet the rehabilitation needs. There is an urgent need to improve its flexibility and comfort through structural optimization (such as lifting and multi-angle adjustment), reduce the nursing burden and promote the user's independent activity ability.

[0003] Although traditional stretchers can ensure the safety of transportation, they have significant defects: during the process of rescuing patients, the violent shaking generated during the process of transferring patients to stretchers may cause secondary injuries to patients. Especially for some patients with heavier weights, it requires higher physical strength from medical staff, increasing the work intensity of medical staff. By designing the stretcher structure with detachable installation, placing some components under the patient and gradually installing other components, after the installation is completed, the patient is directly placed on the stretcher, avoiding the possible injuries caused by transfer, effectively reducing the work intensity of medical staff, and at the same time realizing the state conversion between the stretcher and the wheelchair through structural design, which is more convenient for transportation in specific situations such as when the patient's injury is not serious.

[0004] Based on this, the present invention designs an intelligent stretcher wheelchair lifting multifunctional device, integrating functions such as wheelchairs, stretchers, stretcher beds, and attitude adjustment, solving the limitations of traditional wheelchairs and stretchers, and improving the comfort and safety of users. Summary of the Invention

[0005] This application provides an intelligent stretcher wheelchair lifting multifunctional device, which integrates functions such as wheelchairs, stretchers, stretcher beds, and attitude adjustment, can solve the limitations of traditional wheelchairs and stretchers, and improve the comfort and safety of users.

[0006] The intelligent stretcher wheelchair lifting multifunctional device provided by this application adopts the following technical solutions: An intelligent stretcher wheelchair lifting multifunctional device, comprising: A seat board, in which two gear rods are rotatably arranged, and both ends of the gear rods protrude from both sides of the seat board respectively; Two upper limb frames, fixedly connected to both ends of one of the gear rods; The lower limb brackets are provided with two and fixedly connected to both ends of another gear rod; The rollers are installed at one ends of the upper limb bracket and the lower limb bracket away from the seat board; The control mechanism is used to drive the two gear rods to rotate independently and lock; The back board and the lower limb board are both hingedly installed on the seat board, and the two are arranged oppositely. The lower limb board is placed on the lower limb bracket; The locking mechanism is arranged on the seat board and used to lock the flipping angle of the back board on the seat board; and There are two armrests, which are respectively fixedly connected to both sides of the back board.

[0007] Furthermore, both the upper limb bracket and the lower limb bracket are arc-shaped, and the outer arc tops are arranged at one ends of them away from the seat board. The rollers are installed at the outer arc tops.

[0008] Furthermore, the locking mechanism includes: The inner shaft sleeve is slidably arranged along the axial direction of the gear rod on the side of the seat board. One of the gear rods penetrates through the inner shaft sleeve. A tooth convex is fixedly connected to the outer arc side of the inner shaft sleeve, and a special-shaped cylinder inserted on the seat board is fixedly connected to one end of the inner shaft sleeve close to the side of the seat board; The outer shaft sleeve is fixedly connected to the end of the back board. The outer shaft sleeve is sleeved outside the inner shaft sleeve, and a plurality of tooth grooves inserted and adapted to the tooth convex are arranged on the inner arc side of the outer shaft sleeve; and The reset member is connected between the inner shaft sleeve and the side wall of the seat board.

[0009] Furthermore, the upper limb bracket is fixedly connected to the outermost end of the corresponding gear rod, and the back board and the armrest are located between the upper limb bracket and the seat board; When the inner shaft sleeve is disengaged from the outer shaft sleeve, the inner shaft sleeve is located between the outer shaft sleeve and the seat board.

[0010] Furthermore, the control mechanism includes: There are two driving gears, which are respectively meshed and connected with the two gear rods; There are two driving motors, which respectively drive the two gear rods to rotate; A cavity is arranged inside the seat board, and the driving gears and the driving motors are both arranged in the cavity.

[0011] Furthermore, load-bearing rods are arranged between the lower limb bracket and the lower limb board and between the back board and the upper limb bracket, and both ends of the load-bearing rods are fixed by bolting.

[0012] Furthermore, the load-bearing rod is a telescopic rod with a self-locking function.

[0013] Furthermore, the back board includes: Connecting rods, two of them are provided and are respectively hinged on both sides of the seat board; Support plates, two of them are provided, and one of the support plates is fixedly connected to the adjacent connecting rod, and the other support plate is lapped with the adjacent connecting rod; One-way self-locking hinges, multiple of them are provided and are connected between the two support plates for restricting the support plates to only flip in the direction away from the lower limb frame; Support rods, fixedly connected to the back of the movably connected support plate and arranged orthogonally to its flipping direction; Power motors, installed on the back of the fixedly connected support plate and used to drive the support rods to flip.

[0014] Furthermore, the upper limb frame and the lower limb frame are detachably installed at the ends of the corresponding gear rods.

[0015] Furthermore, the upper limb frame and the lower limb frame are made of carbon fiber or aluminum magnesium alloy.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the flattening and lifting of the upper limb frame and the lower limb frame, the present invention can realize the conversion among the states of stretcher, stretcher bed and wheelchair. It can be used as a stretcher, a stretcher bed, or a wheelchair. At the same time, through the conversion of the three states, it is possible to easily transfer people with inconvenient mobility, reduce the physical strength requirements of medical staff or family members during the transfer process, and easily realize the transfer of people with heavy weight and inconvenient mobility; 2. The flattening and lifting angles of the upper limb frame and the lower limb frame of the present invention are adjustable, and the angles can be adjusted according to personal needs to adjust a comfortable posture state for people with inconvenient mobility; 3. The backboard of the present invention is composed of two support plates combined by one-way self-locking hinges. Through the flattening and folding of the movably connected support plates, it is possible to realize the adjustment of postures such as turning over and sideways for people with inconvenient mobility, and the adjustment angles are controllable. The tilting angle of the backboard is adjustable to realize the conversion between the seat and the lying states; 4. Some device components of the present invention are detachably installed, and some of the components can be selectively installed or disassembled according to the functional use requirements. The structure is light, flexible, and easy to operate. One person can complete the installation or disassembly; 5. The present invention can directly place the backboard, seat board, and lower limb board under the person with inconvenient mobility, and gradually install the upper limb frame and the lower limb frame. After the installation is completed, the person with inconvenient mobility is directly located on the device. By controlling the mechanism to adjust the included angle between the upper limb frame and the lower limb frame, the person with inconvenient mobility can be directly lifted, without having to go through the secondary transfer process from the original position to the device like a traditional stretcher or wheelchair, which can effectively avoid the harm caused to people during the secondary transfer process. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application in the wheelchair state; Figure 2 It is a front view of the locking mechanism of an embodiment of the present application; Figure 3 It is a schematic diagram of the overall structure of an embodiment of the present application in the stretcher state; Figure 4 It is a schematic diagram of the structure of the control mechanism of an embodiment of the present application; Figure 5 It is a schematic diagram of the overall structure of an embodiment of the present application in the stretcher bed state; Figure 6 It is a schematic diagram of the back structure of the backboard of an embodiment of the present application.

[0019] Reference numerals: 1, seat board; 21, gear rod; 22, driving gear; 23, driving motor; 31, upper limb frame; 32, lower limb frame; 33, roller; 41, backboard; 411, connecting rod; 412, support plate; 413, one-way self-locking hinge; 414, support rod; 415, power motor; 42, armrest; 5, lower limb plate; 61, inner shaft sleeve; 611, tooth protrusion; 62, outer shaft sleeve; 621, tooth groove; 7, load-bearing rod. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0021] Embodiment 1: Refer to Figure 1 , an embodiment of the present application discloses an intelligent stretcher wheelchair lifting multifunctional device, which includes: A seat board 1, in which two gear rods 21 are rotatably arranged, and both ends of the gear rod 21 protrude from both sides of the seat board 1.

[0022] There are two upper limb frames 31, which are fixedly connected to both ends of a gear rod 21.

[0023] There are two lower limb frames 32, which are fixedly connected to both ends of the other gear rod 21.

[0024] Rollers 33 are installed at one end of the upper limb frame 31 and the lower limb frame 32 away from the seat plate 1; both the upper limb frame 31 and the lower limb frame 32 are arc-shaped, and the outer arc top is provided at one end away from the seat plate 1, and the rollers 33 are installed in the grooves at the outer arc top.

[0025] The control mechanism is used to drive the two gear rods 21 to rotate independently and lock.

[0026] The backrest 41 and the lower limb plate 5 are both hingedly installed on the seat plate 1, and they are arranged opposite to each other. The lower limb plate 5 is placed on the lower limb frame 32, so that the lower limb frame 32 can play a good supporting role for the lower limb plate 5.

[0027] The locking mechanism is arranged on the seat plate 1 and is used to lock the flipping angle of the backrest 41 on the seat plate 1.

[0028] There are two armrests 42, which are respectively fixedly connected to both sides of the backrest 41, specifically arranged on both sides of the seat plate 1.

[0029] Specifically, the locking mechanism includes: The inner shaft sleeve 61 is slidably arranged along the axial direction of the gear rod 21 on the side of the seat plate 1. The end of the gear rod 21 installed with the upper limb frame 31 penetrates through the hollow part of the inner shaft sleeve 61. The outer arc side of the inner shaft sleeve 61 is fixedly connected with a tooth protrusion 611. One end of the inner shaft sleeve 61 close to the side of the seat plate 1 is fixedly connected with a special-shaped cylinder inserted into the seat plate 1, which can be a square cylinder or a regular hexagonal cylinder, so that the inner shaft sleeve 61 can slide along the axial direction of the gear rod 21 on the seat plate 1 but will not rotate.

[0030] The outer shaft sleeve 62 is fixedly connected to the end of the backrest 41. The outer shaft sleeve 62 is sleeved outside the inner shaft sleeve 61, and a plurality of tooth grooves 621 adapted to be inserted with the tooth protrusions 611 are arranged on the inner arc side of the outer shaft sleeve 62.

[0031] The resetting member is connected between the inner shaft sleeve 61 and the side wall of the seat plate 1. Specifically, it can be a spring sleeved outside the special-shaped cylinder; and when the inner shaft sleeve 61 moves towards the direction close to the seat plate 1 so that the tooth protrusion 611 is disengaged from the tooth groove 621, the resetting member is in a compressed state.

[0032] Moreover, the upper limb frame 31 is fixedly connected to the outermost end of the corresponding gear rod 21. The backrest 41 and the armrests 42 are located between the upper limb frame 31 and the seat plate 1; when the inner shaft sleeve 61 is disengaged from the outer shaft sleeve 62, the inner shaft sleeve 61 is located between the outer shaft sleeve 62 and the seat plate 1.

[0033] Thus, when the control mechanism drives each of the two gear rods 21 to rotate independently in the coming year, the two upper support frames 31 and the two lower support frames 32 can be flipped on the seat plate 1. When the upper support frame 31 and the lower support frame 32 are both flipped to the same side of the seat plate 1, the rollers 33 on the upper support frame 31 and the lower support frame 32 form a stable triangular support structure with the seat plate 1. Subsequently, the inner shaft sleeve 61 is pushed away from the outer shaft sleeve 62, which can release the engagement between the tooth protrusions 611 on the inner shaft sleeve 61 and the tooth grooves 621 on the outer shaft sleeve 62. At this time, the back plate 41 can be freely rotated on the seat plate 1 to a suitable position; after the external force on the inner shaft sleeve 61 is withdrawn, the inner shaft sleeve 61 is embedded in the outer shaft sleeve 62 under the deformation force of the reset member, and the tooth protrusions 611 on it are engaged with one of the tooth grooves 621, so that the flipping angle of the back plate 41 is locked. So far, the multifunctional device of the present application is in a wheelchair state and can be moved by means of the rollers 33; the included angle between the upper support frame 31 and the lower support frame 32 can also be adjusted by the control mechanism, and the wheelchair height can be adjusted to suit different people with mobility difficulties; the inclination angle of the back plate 41 can also be continuously adjusted to realize the adjustment of the seat and lying postures.

[0034] Moreover, in another application scenario, the flipping angles of the upper support frame 31 and the lower support frame 32 can be adjusted by the control mechanism so that the upper support frame 31, the seat plate 1 and the lower support frame 32 are substantially coplanar. At this time, the multifunctional device of the present application is in a stretcher state, which can facilitate the rapid transfer of people with mobility difficulties.

[0035] In addition, the control mechanism includes: Drive gears 22, there are two of them and they are respectively meshed and connected with the two gear rods 21; Drive motors 23, there are two of them and they respectively drive the two gear rods 21 to rotate. The drive motors 23 are specifically servo motors with braking functions; A cavity is built in the seat plate 1, and the drive gears 22 and the drive motors 23 are both arranged in the cavity.

[0036] Thus, by separately controlling the two drive motors 23 to work, the two gear rods 21 can be driven to rotate, and the adjustment of the wheelchair posture can be carried out more conveniently.

[0037] Moreover, to improve the portability of the multifunctional device of the present application, the upper support frame 31 and the lower support frame 32 can be detachably installed at the ends of the corresponding gear rods 21, for example, fixed by bolting; and the upper support frame 31 and the lower support frame 32 are made of carbon fiber or aluminum-magnesium alloy. The overall structure of the multifunctional device of the present application can be made light, flexible and easy to operate.

[0038] Embodiment 2: The embodiment of the present application discloses an intelligent stretcher wheelchair lifting multifunctional device, which is different from Embodiment 1 in that: A load-bearing rod 7 is provided between the lower limb support 32 and the lower limb plate 5, and between the back plate 41 and the upper limb support 31. Both ends of the load-bearing rod 7 are fixed by bolting to achieve detachable connection. Moreover, the load-bearing rod 7 can be a telescopic rod with a self-locking function. For example, the telescopic rod is composed of an outer rod and an inner rod. A plurality of positioning holes are provided on the inner rod along its length direction. A pin inserted through the outer rod is adapted to be inserted into the positioning holes. By inserting the pin into different positioning holes, the total length of the telescopic rod can be changed and locked.

[0039] Thus, after the load-bearing rod 7 is assembled on the multifunctional device of the present application, the upper limb support 31 and the lower limb support 32 can be adjusted to a state with a smaller included angle, and the lower limb plate 5 and the back plate 41 can be flipped so that the load-bearing rod 7 supports the lower limb plate 5 and the back plate 41 respectively. At this time, the multifunctional device of the present application is in the state of a stretcher bed, and it is also convenient to quickly transfer the disabled person. Moreover, by adjusting the included angle between the upper limb support 31 and the lower limb support 32, the height adjustment of the stretcher bed suitable for different disabled persons can be realized; and by adjusting the inclination angle of the back plate 41, the flat lying angle adjustment of the stretcher bed can be realized.

[0040] Embodiment 3: The embodiment of the present application discloses an intelligent multifunctional device for lifting a stretcher wheelchair, which is different from Embodiment 1 in that: The back plate 41 includes: Two connecting rods 411 are respectively hinged to both sides of the seat plate 1. Specifically, an outer shaft sleeve 62 is fixedly connected to one end of the connecting rod 411 close to the seat plate 1.

[0041] Two support plates 412 are provided. One support plate 412 is fixedly connected to the adjacent connecting rod 411, and the other support plate 412 is lapped with the adjacent connecting rod 411.

[0042] A plurality of one-way self-locking hinges 413 are provided and connected between the two support plates 412 for restricting the support plate 412 to only flip away from the lower limb support 32. The two support plates 412 are hinged by the one-way self-locking hinge 413.

[0043] A support rod 414 is fixedly connected to the back of the movably connected support plate 412 and is arranged orthogonally to its flipping direction.

[0044] A power motor 415 is installed on the back of the fixedly connected support plate 412 and is used to drive the support rod 414 to flip.

[0045] Thus, no matter whether the multifunctional device of the present application is in the wheelchair state, the stretcher state or the stretcher bed state, the power motor 415 can be used to drive the support rod 414 to flip, so that the flipped support rod 414 can push the movably connected support plate 412 to flip upward on the fixedly connected support plate 412, and the posture adjustment such as turning over of the disabled person can be realized.

[0046] In order to further ensure the stability when the support plate 412 flips, a reinforcing rod is fixedly connected between one end or both ends of the two connecting rods 411 away from the seat plate 1, and the lower end surfaces of the two support plates 412 are in contact with the upper end surface of the reinforcing rod in the flush state.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent stretcher and wheelchair lifting multifunctional device, characterized in that Comprising: A seat board, in which two gear rods are rotatably arranged, and both ends of the gear rods protrude from both sides of the seat board respectively; Two upper limb frames, which are fixedly connected to both ends of one of the gear rods; Two lower limb frames, which are fixedly connected to both ends of the other gear rod; Rollers, which are installed at one end of the upper limb frame and the lower limb frame away from the seat board; A control mechanism, which is used to drive the two gear rods to rotate independently and lock; A back board and a lower limb board, both of which are hingedly installed on the seat board and are arranged opposite to each other, and the lower limb board is placed on the lower limb frame; A locking mechanism, which is arranged on the seat board and is used to lock the flipping angle of the back board on the seat board; and Two armrests, which are respectively fixedly connected to both sides of the back board.

2. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, wherein, Both the upper limb frame and the lower limb frame are arc-shaped, and an outer arc top is arranged at one end of them away from the seat board, and the roller is installed at the outer arc top.

3. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, characterized in that, The locking mechanism includes: An inner shaft sleeve, which is slidably arranged along the axial direction of the gear rod on the side of the seat board, and one of the gear rods penetrates through the inner shaft sleeve. A tooth convex is fixedly connected to the outer arc side of the inner shaft sleeve, and a special-shaped cylinder inserted into the seat board is fixedly connected to one end of the inner shaft sleeve close to the side of the seat board; An outer shaft sleeve, which is fixedly connected to the end of the back board, and the outer shaft sleeve is sleeved outside the inner shaft sleeve, and a plurality of tooth grooves adapted to be inserted with the tooth convex are arranged on the inner arc side of the outer shaft sleeve; and A reset member, which is connected between the inner shaft sleeve and the side wall of the seat board.

4. The intelligent stretcher wheelchair lifting multifunctional device according to claim 3, wherein The upper limb frame is fixedly connected to the outermost end of the corresponding gear rod, and the back board and the armrest are located between the upper limb frame and the seat board; When the inner shaft sleeve is disengaged from meshing with the outer shaft sleeve, the inner shaft sleeve is located between the outer shaft sleeve and the seat board.

5. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, wherein The control mechanism includes: Two driving gears, which are respectively meshed and connected with the two gear rods; Two driving motors, which are respectively used to drive the two gear rods to rotate; A cavity is arranged inside the seat board, and both the driving gear and the driving motor are arranged in the cavity.

6. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, wherein Load-bearing rods are arranged between the lower limb frame and the lower limb board and between the back board and the upper limb frame, and both ends of the load-bearing rods are fixed by bolting.

7. The intelligent stretcher wheelchair lifting multifunctional device according to claim 6, wherein, The load-bearing rod is a telescopic rod with a self-locking function.

8. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, characterized in that, The back board includes: Two connecting rods, which are respectively hinged to both sides of the seat board; Two support plates, and one support plate is fixedly connected to the adjacent connecting rod, and the other support plate is lapped with the adjacent connecting rod; A plurality of one-way self-locking hinges, which are connected between the two support plates and are used to limit the support plates to only flip in the direction away from the lower limb frame; A support rod, which is fixedly connected to the back of the support plate connected movably and is arranged orthogonally to its flipping direction; A power motor, which is installed on the back of the support plate connected fixedly and is used to drive the support rod to flip.

9. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, characterized in that The upper limb frame and the lower limb frame are detachably installed at the end of the corresponding gear rod.

10. The intelligent stretcher wheelchair lifting multifunctional device according to claim 1, characterized in that, The upper limb frame and the lower limb frame are made of carbon fiber or aluminum-magnesium alloy.

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