A sit-stand auxiliary chair with angle adjustment function for rehabilitation

Abstract

The utility model relates to sitting and standing auxiliary chair technical field discloses a kind of sitting and standing auxiliary chairs with angle adjusting function for rehabilitation, including push hand seat, electric push seat and seat plate, the electric push seat is located at the top of the push hand seat, the electric push seat includes drive cylinder, the drive cylinder top is fixedly connected with upper seat, the seat plate is located at the top of the upper seat, the seat plate both ends axle rod is rotationally connected in the inside of the upper seat vertical rod, the inside of the upper seat vertical rod is fixedly connected with first motor, the utility model starts first motor and second motor by remote control device, first motor and second motor synchronous operation, through motor drive seat plate and backrest coordinated rotation, the patient is smoothly transitioned from sitting posture to standing posture, and through motor mechanism adjustment seat plate and backrest rotation angle, can be adjusted according to the illness of different patients Auxiliary chair rotation angle, avoid seat plate and backrest rotation fixedly unchanged, lead to patient barycenter transfer failure.

Description

Technical Field

[0001] This utility model relates to the field of sitting assistance chair technology, and in particular to a rehabilitation sitting assistance chair with angle adjustment function. Background Technology

[0002] A rehabilitation sitting and standing assistive chair is an assistive device specifically designed to help people with limited mobility or those requiring rehabilitation training maintain correct sitting posture, perform standing training, or engage in daily activities. These products are widely used by children with cerebral palsy, hemiplegic patients, the elderly, and post-operative rehabilitation patients. Combining sitting and standing training functions, they are suitable for long-term bedridden patients and use electric adjustment to help users transition from a sitting to a standing posture.

[0003] The existing multifunctional health rehabilitation chair for sitting, standing and walking (announcement number: CN204909880U) has at least the following drawbacks: the device requires manual adjustment of the rehabilitation chair so that the patient can sit or stand on it. However, the rotation angle of the rehabilitation chair is fixed and cannot be dynamically adjusted according to individual differences or movement stages of the patient, which can easily lead to poor physiological adaptation of the patient (such as failure of center of gravity transfer, joint overload, ligament damage, etc.). Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rehabilitation sitting assist chair with angle adjustment function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rehabilitation sitting assistive chair with angle adjustment function includes a push-arm seat, an electric push-arm seat, and a seat plate. The electric push-arm seat is located on top of the push-arm seat and includes a drive cylinder. An upper seat is fixedly connected to the top of the drive cylinder. The seat plate is located on top of the upper seat. The two ends of the seat plate are rotatably connected to the inner side of the upper seat upright. A first motor is fixedly connected inside the upper seat upright. The output end of the first motor is fixedly connected to one end of the seat plate's shaft. A second motor is fixedly connected inside the rear end of the seat plate. A backrest is provided on the back of the seat. The bottom end of the backrest is rotatably connected to the rear end of the seat plate. The output end of the second motor is fixedly connected to the bottom end shaft of the backrest. A seat cushion is fixedly installed on the top of the seat plate. Straps are fixedly installed on one side of both the seat plate and the backrest. Armrests are provided on both sides of the straps and are integrally connected to the top of the seat plate.

[0007] As a further embodiment of this utility model, the electric push seat includes a drive cylinder and a crossbar. A crossbar is fixedly connected to the cylinder between the front and rear sets of drive cylinders. Several springs are provided on the inner side of the upper seat. The bottom end of the spring is fixedly installed on the inner side of the crossbar by bolts, and the top end of the spring is obliquely installed at the bottom of the rear end of the seat plate by bolts.

[0008] As a further embodiment of this utility model, the four corners of the bottom of the upper seat are fixedly connected to the top of the telescopic ends of several drive cylinders. The bottom of the electric push seat is provided with an electric slide rail, which is fixedly installed on the top of the pusher seat. The electric push seat is slidably connected to the electric slide rail. Universal wheels are fixedly installed on both outer sides of the pusher seat.

[0009] As a further embodiment of this utility model, the electric push base is provided with several support frames on the front side, and the several support frames are respectively fixedly connected to the two top corners of the push base. The support frame includes a hydraulic rod, a sleeve and a handle rod. The handle rod is integrally connected to the top of the sleeve, and the top and bottom ends of the hydraulic rod are respectively fixedly connected to the top and bottom sides of the upper and lower tube columns of the sleeve.

[0010] As a further embodiment of this utility model, a hydraulic handrail frame is provided between the support frames. The bottom end of the hydraulic handrail frame is fixedly installed on the top of the pusher seat. Handrails are fixedly connected to both sides of the hydraulic handrail frame. The hydraulic handrail frame includes a table, a rotating frame, and a positioning bolt.

[0011] As a further embodiment of this utility model, several of the rotating frames are integrally installed on one side of the tabletop, and several of the rotating frames are respectively connected through the armrest. The tabletop is located on the outside side of the support frame, and one end of the positioning bolt is threaded to the rotating frame and abuts against the outside of the armrest.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The patient sits on the seat of the electric push chair. The straps on the seat and backrest are used to fix the pelvis and torso to prevent slipping or tilting and to ensure that the force is effectively transmitted to the lower limbs. The patient starts the first and second motors on one side of the seat and backrest through a remote control. The first and second motors operate synchronously, driving the seat and backrest to rotate together, thereby assisting the patient to smoothly transition from a sitting to a standing posture. The rotation angle of the seat and backrest can be adjusted by the motor mechanism, which can be adjusted according to the patient's condition. This avoids the situation where the rotation angle of the seat and backrest is fixed (and cannot be dynamically adjusted according to individual patient differences or the stage of movement), which can easily lead to failure of the patient's center of gravity transfer and abnormal joint load.

[0014] 2. If the patient is relatively tall, the electric push seat can be activated via remote control to slide on the electric slide rail, increasing the distance between the electric push seat and the support frame. This makes it easier for the patient to step onto the top of the push seat and sit on the seat board. At the same time, the drive cylinder of the electric push seat is activated, and the extension end of the drive cylinder pushes the seat board up, so that the height of the seat board matches the patient's leg length or torso proportion. The distance can then be adjusted by sliding the electric push seat on the electric slide rail. When the patient changes from sitting to standing, the support frame is activated simultaneously, and the extension end of the hydraulic rod pushes the sleeve to extend, so that the handle bar rises to fit the patient's grip, making it easier for the patient to hold the handle bar on the support frame to stabilize their body and avoid leaning forward, which could cause instability and affect the change of sitting to standing posture. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a rehabilitation sitting assistive chair with angle adjustment function proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the electric push seat of a rehabilitation sitting assistance chair with angle adjustment function proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the seat panel of a rehabilitation sitting assistive chair with angle adjustment function proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the upper seat of a rehabilitation sitting aid chair with angle adjustment function proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the hydraulic armrest frame of a rehabilitation sitting assist chair with angle adjustment function proposed in this utility model.

[0020] In the diagram: 1. Push handle base; 101. Electric slide rail; 102. Caster wheel; 2. Electric push base; 201. Drive cylinder; 202. Crossbar; 3. Upper seat; 301. First motor; 4. Seat board; 401. Seat cushion; 402. Armrest; 403. Backrest; 404. Second motor; 405. Straps; 406. Spring; 5. Support frame; 501. Hydraulic rod; 502. Tube sleeve; 503. Handle bar; 6. Hydraulic armrest frame; 601. Armrest bar; 602. Table; 603. Rotating frame; 604. Positioning bolt. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figures 1-5 A rehabilitation sitting assistive chair with angle adjustment function includes a push-arm seat 1, an electric push-arm seat 2, and a seat plate 4. The electric push-arm seat 2 is located on top of the push-arm seat 1 and includes a drive cylinder 201. An upper seat 3 is fixedly connected to the top of the drive cylinder 201. The seat plate 4 is located on top of the upper seat 3. The two ends of the seat plate 4 are rotatably connected to the inner side of the upright of the upper seat 3. A first motor 301 is fixedly connected inside the upright of the upper seat 3. The output end of the first motor 301 is fixedly connected to the seat plate. On one end of the shaft, a second motor 404 is fixedly connected inside the tail end of the seat plate 4. A backrest 403 is provided on the back of the seat. The bottom end of the backrest 403 is rotatably connected to the tail end of the seat plate 4. The output end of the second motor 404 is fixedly connected to the shaft at the bottom end of the backrest 403. A seat cushion 401 is fixedly installed on the top of the seat plate 4. Straps 405 are fixedly installed on one side of both the seat plate 4 and the backrest 403. Armrests 402 are provided on both sides of the straps 405. The armrests 402 are integrally connected to the top of the seat plate 4.

[0025] In use, the patient sits on the seat plate 4 of the electric push seat 2, and the straps 405 on the seat plate 4 and backrest 403 secure the pelvis and torso to prevent slipping or tilting, ensuring that the force is effectively transmitted to the lower limbs. The patient activates the first motor 301 and the second motor 404 on one side of the seat plate 4 and backrest 403 via a remote control. The first motor 301 and the second motor 404 operate synchronously. The output of the first motor 301 drives the seat plate 4 to rotate, and the tail end of the seat plate 4 lifts up to support and push the patient's buttocks, gradually reducing the angle between the thigh and torso. When the seat plate 4 rotates 90° clockwise at one end of the electric push seat 2 and is in an upright position, the patient's lower limbs are standing on the push seat. At the top, when the output of the synchronous second motor 404 drives the backrest 403 to rotate counterclockwise, it provides back support and guides the torso to lean forward, helping to shift the center of gravity to the feet, so that the patient's upper body is straight and the whole body is in a standing posture. The device drives the seat plate 4 and the backrest 403 to rotate in coordination through the motor, thereby assisting the patient to smoothly transition from a sitting posture to a standing posture. Moreover, the rotation angle of the seat plate 4 and the backrest 403 can be adjusted by the motor mechanism, so that the rotation angle of the auxiliary chair can be adjusted according to the condition of different patients. This avoids the failure of the patient's center of gravity transfer and abnormal joint load when the rotation of the seat plate 4 and the backrest 403 is fixed (and cannot be dynamically adjusted according to individual differences of patients or the stage of movement).

[0026] In this embodiment, the electric push seat 2 includes a drive cylinder 201 and a crossbar 202. The crossbar 202 is fixedly connected to the cylinder between the front and rear sets of drive cylinders 201. Several springs 406 are provided on the inner side of the upper seat 3. The bottom end of the spring 406 is fixedly installed on the inner side of the crossbar 202 by bolts, and the top end of the spring 406 is obliquely installed on the bottom of the rear end of the seat plate 4 by bolts.

[0027] When in use, when the first motor 301 drives the seat plate 4 to rotate around the upper seat 3, the movement amplitude of the end point far from the axis increases. The reverse tension generated by the stretching of the spring 406 can partially offset the load of the first motor 301, reduce the torque required by the first motor 301, and the spring 406 absorbs the impact force when the first motor 301 starts or stops or when the patient's movements suddenly change, reducing the wear of the bearings and other transmission components of the first motor 301.

[0028] In this embodiment, the four corners of the bottom of the upper seat 3 are fixedly connected to the top of the telescopic ends of several drive cylinders 201. The bottom of the electric push seat 2 is provided with an electric slide rail 101. The electric slide rail 101 is fixedly installed on the top of the push seat 1. The electric push seat 2 is slidably connected to the electric slide rail 101. Universal wheels 102 are fixedly installed on both sides of the outside of the push seat 1.

[0029] When in use, if the patient is relatively tall, the electric push seat 2 can be started by remote control and slid on the electric slide rail 101 to increase the distance between the electric push seat 2 and the support frame 5, so that the patient can step into the top of the push seat 1 and sit on the seat board 4. The caregiver pushes the push seat 1, and the universal wheel 102 drives the push seat 1 to move in position, so that the patient can move in position to carry out rehabilitation training.

[0030] In this embodiment, the electric push base 2 is provided with several support frames 5 on the front side. The several support frames 5 are fixedly connected to the top two corners of the push base 1. The support frame 5 includes a hydraulic rod 501, a sleeve 502 and a handle rod 503. The handle rod 503 is integrally connected to the top of the sleeve 502. The top and bottom ends of the hydraulic rod 501 are fixedly connected to the top and bottom sides of the upper and lower tube columns of the sleeve 502, respectively.

[0031] In use, the drive cylinder 201 of the electric push seat 2 is activated. The telescopic end of the drive cylinder 201 pushes the seat plate 4 to rise, so that the height of the seat plate 4 matches the patient's leg length or torso proportion. Then, the distance is adjusted by the electric push seat 2 sliding on the electric slide rail 101. When the patient changes from sitting to standing, the support frame 5 is activated simultaneously. The telescopic end of the hydraulic rod 501 pushes the sleeve 502 to extend, so that the handle bar 503 rises to fit the patient's grip. This makes it easier for the patient to grip the handle bar 503 on the support frame 5 to stabilize their body and avoid leaning forward, which would cause instability and affect the change of sitting to standing posture.

[0032] In this embodiment, a hydraulic handrail 6 is provided between the support frames 5. The bottom end of the hydraulic handrail 6 is fixedly installed on the top of the pusher seat 1. Handrails 601 are fixedly connected to both sides of the hydraulic handrail 6. The hydraulic handrail 6 includes a table 602, a rotating frame 603 and a positioning bolt 604.

[0033] When in use, the hydraulic handrail 6 has a hydraulic lifting function. When the patient is performing standing training, the hydraulic handrail 6 can be activated to rise synchronously, so that the hydraulic handrail 6 can be moved to a comfortable height for the patient, making it convenient for the patient to adjust the table 602 and use it. The electric push seat 2 is equipped with an electrical control device between the drive cylinders 201, which is used to control and supply power to the overall electric structure of the rehabilitation chair, and is also equipped with a remote control device that is easy for the patient to operate independently.

[0034] In this embodiment, several rotating frames 603 are integrally installed on one side of the tabletop 602, and several rotating frames 603 are respectively connected through the armrest 601. The tabletop 602 is located on the outside of the support frame 5, and one end of the positioning bolt 604 is threaded to the rotating frame 603 and abuts against the outside of the armrest 601.

[0035] When in use, the patient rotates the positioning bolt 604 to release the fixed connection between the rotating frame 603 and the handrail 601, allowing the patient to adjust the angle of the tabletop 602 according to their own needs. After determining the angle of the tabletop 602, the patient rotates the positioning bolt 604 again, so that one end of the positioning bolt 604 moves and abuts against the handrail 601 to fix the tabletop 602 in place, making it convenient for the patient to use the tabletop 602.

[0036] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the patient sits on the seat plate 4 of the electric push seat 2, the straps 405 on the seat plate 4 and backrest 403 fix the pelvis and torso to prevent slipping or tilting, ensuring that the force is effectively transmitted to the lower limbs. The patient starts the first motor 301 and the second motor 404 on one side of the seat plate 4 and backrest 403 through a remote control device. The first motor 301 and the second motor 404 operate synchronously, driving the seat plate 4 and backrest 403 to rotate together, thereby assisting the patient to smoothly transition from a sitting posture to a standing posture. Moreover, by adjusting the rotation angle of the seat plate 4 and backrest 403 through the motor mechanism, the rotation angle of the auxiliary chair can be adjusted according to the different conditions of different patients, avoiding the situation where the rotation of the seat plate 4 and backrest 403 is fixed (unable to be dynamically adjusted according to individual patient differences or movement stages), which can easily lead to failure of the patient's center of gravity transfer and abnormal joint load. If the patient is relatively tall... When the patient is in a large position, the electric push seat 2 is activated via remote control and slides on the electric slide rail 101, increasing the distance between the electric push seat 2 and the support frame 5. This allows the patient to step onto the top of the push seat 1 and sit on the seat board 4. The distance is then adjusted by the electric push seat 2 sliding on the electric slide rail 101. When the patient changes their sitting or standing posture, the support frame 5 is activated simultaneously. The telescopic end of the hydraulic rod 501 pushes the sleeve 502 to extend, raising the handle bar 503 to allow the patient to grip it. This helps the patient stabilize their body and avoids leaning forward, which could cause instability and affect the change of sitting or standing posture. In this solution, the electrical components are controlled by their associated peripheral controller. The control circuit can be easily programmed by those skilled in the art and is common knowledge in the field. It is used without modification. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rehabilitation sitting assistive chair with angle adjustment function, comprising a push-arm seat (1), an electric push seat (2), and a seat board (4), characterized in that, The electric push base (2) is located on top of the pusher base (1). The electric push base (2) includes a drive cylinder (201). An upper seat (3) is fixedly connected to the top of the drive cylinder (201). The seat plate (4) is located on top of the upper seat (3). The two ends of the seat plate (4) are rotatably connected to the inner side of the upright of the upper seat (3). A first motor (301) is fixedly connected inside the upright of the upper seat (3). The output end of the first motor (301) is fixedly connected to one end of the shaft of the seat plate (4). The tail end of the seat plate (4) is fixedly connected to the inner side of the shaft. A second motor (404) is connected to the seat back. A backrest (403) is provided on the back of the seat. The bottom end of the backrest (403) is rotatably connected to the tail end of the seat plate (4). The output end of the second motor (404) is fixedly connected to the bottom shaft of the backrest (403). A seat cushion (401) is fixedly installed on the top of the seat plate (4). Straps (405) are fixedly installed on one side of both the seat plate (4) and the backrest (403). Armrests (402) are provided on both sides of the straps (405). The armrests (402) are integrally connected to the top of the seat plate (4).

2. The rehabilitation sitting assistive chair with angle adjustment function according to claim 1, characterized in that, The electric push seat (2) includes a drive cylinder (201) and a crossbar (202). The crossbar (202) is fixedly connected to the cylinder between the front and rear sets of drive cylinders (201). Several springs (406) are provided on the inner side of the upper seat (3). The bottom end of the spring (406) is fixedly installed on the inner side of the crossbar (202) by bolts. The top end of the spring (406) is obliquely installed on the bottom of the tail end of the seat plate (4) by bolts.

3. A rehabilitation sitting assistive chair with angle adjustment function according to claim 2, characterized in that, The upper seat (3) is fixedly connected to the top of the telescopic ends of several drive cylinders (201) at the four corners of its bottom. The electric push seat (2) is provided with an electric slide rail (101) at its bottom. The electric slide rail (101) is fixedly installed on the top of the pusher seat (1). The electric push seat (2) is slidably connected to the electric slide rail (101). Universal wheels (102) are fixedly installed on both sides of the outside of the pusher seat (1).

4. A rehabilitation sitting assistive chair with angle adjustment function according to claim 3, characterized in that, The electric push base (2) is provided with several support frames (5) on the front side. Several support frames (5) are fixedly connected to the top two corners of the push base (1). The support frame (5) includes a hydraulic rod (501), a sleeve (502) and a handle (503). The handle (503) is integrally connected to the top of the sleeve (502). The top and bottom ends of the hydraulic rod (501) are fixedly connected to the top and bottom sides of the upper and lower tube columns of the sleeve (502).

5. A rehabilitation sitting assistive chair with angle adjustment function according to claim 4, characterized in that, A hydraulic handrail (6) is provided between the support frame (5). The bottom end of the hydraulic handrail (6) is fixedly installed on the top of the pusher seat (1). Handrails (601) are fixedly connected on both sides of the hydraulic handrail (6). The hydraulic handrail (6) includes a table (602), a rotating frame (603), and a positioning bolt (604).

6. A rehabilitation sitting assistive chair with angle adjustment function according to claim 5, characterized in that, Several rotating frames (603) are integrally installed on one side of the tabletop (602), and several rotating frames (603) are respectively connected through the armrest (601). The tabletop (602) is located on the outside of the support frame (5). One end of the positioning bolt (604) is threaded to the rotating frame (603) and abuts against the outside of the armrest (601).

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