Rehabilitation chair for spine treatment in orthopedics department
Through the coordinated work of the drive assembly, adjustment assembly and rotating assembly, the problem of large size of the rehabilitation chair and unfitting of the chair back is solved, and the portability and comfort are improved to meet the rehabilitation needs of different patients.
Patent Information
- Application Number
- CN202510697797.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2025-08-01
AI Technical Summary
The existing rehabilitation chair for orthopedic spinal treatment is large in size, which is inconvenient to move and store, and the back of the chair is inconvenient to adapt to the body curves of different patients, reducing adaptability.
The support plate, support legs, backrest, protective shell and folding mechanism are adopted to achieve precise control of the backrest and support legs through the coordinated work of the drive assembly, adjustment assembly and rotating assembly, reducing the volume and improving portability. The backrest can adjust the angle separately according to patient needs.
It realizes the smooth folding and unfolding of the rehabilitation chair, which is small in size and easy to carry, adapts to the body shape and rehabilitation needs of different patients, and provides the best support and comfort.
Smart Images

Figure CN120392470A_ABST
Abstract
Description
Technical Field
[0001] The present invention mainly relates to the technical field of spinal treatment, specifically a rehabilitation chair for orthopedic spinal treatment. Background Art
[0002] A rehabilitation chair for orthopedic spinal treatment is an important medical device in the field of modern rehabilitation medicine. It is designed specifically for patients with spinal diseases, aiming to provide them with effective rehabilitation support and treatment assistance. It is widely used in places such as home rehabilitation, hospital treatment, and rehabilitation centers, providing important hardware guarantees for the rehabilitation process of spinal disease patients, helping patients recover their physical functions as soon as possible, and improving their self-care ability and quality of life.
[0003] The rehabilitation chair for orthopedic spinal treatment described in the prior art includes a base mechanism and an electronic mechanism. Among them, the electronic mechanism is connected to the outside of the base mechanism. It also includes a support mechanism with a rotation adjustment function and a massage mechanism with a massage function. The support mechanism is connected to one side of the base mechanism, the massage mechanism is connected inside the support mechanism, a rotation mechanism is connected between the base mechanism and the support mechanism, and an adjustment mechanism is connected to the lower end of the support mechanism.
[0004] Although the above technology can conveniently adjust the multiple axial directions of the support mechanism and improve the practicality of equipment use, it has a large volume, is inconvenient to move and store, and is extremely unfriendly to patients who need to frequently change the use location. Moreover, the backrest is not convenient to adapt to the body curve of patients, reducing the adaptation needs of different patients. Summary of the Invention
[0005] Based on this, the purpose of the present invention is to provide a rehabilitation chair for orthopedic spinal treatment to solve the technical problems raised in the above background art.
[0006] To achieve the above purpose, the present invention provides the following technical solutions: A rehabilitation chair for orthopedic spinal treatment, including a support plate, four support legs rotatably arranged below, a rotatable backrest, a protective shell, a special-shaped protective shell, and a folding mechanism for folding the backrest and the four support legs. A rotation groove is opened on one side of the support plate. Support blocks are fixed on the upper surfaces of both sides of the support plate located in the rotation groove. The two sides of the bottom end of the backrest are located between the two support blocks. A special-shaped protective shell is installed on the lower surface of the support plate. A protective shell is installed in the rotation groove. The protruding end of the special-shaped protective shell is in contact with the protective shell. The folding mechanism is respectively arranged in the protective shell and the special-shaped protective shell; The folding mechanism consists of a driving component, an adjusting component, and a rotating component. The driving component is respectively connected to the adjusting component and the rotating component. The adjusting component is used to control the folding and unfolding of the backrest, and can separately control the unfolding angle of the backrest according to the patient's needs. The rotating component is used to control the rotation and folding of the four support legs. The folding mechanism integrates three major functional modules of driving, adjusting, and rotating, achieving precise control of the backrest and support legs, meeting the usage requirements of patients in different rehabilitation stages and different scenarios. Through optimized structural design, the overall volume of the rehabilitation chair is significantly reduced, improving portability and facilitating the flexible use of patients in different places.
[0007] Specifically, in this technical solution, the driving component includes a double-shaft motor. One output end of the double-shaft motor is connected with a first worm through a flange. A first worm gear is meshed above the first worm. A transmission shaft is fixedly penetrated in the first worm gear. First meshing gears are fixedly installed on the outer walls at both ends of the transmission shaft. Through the worm and worm gear transmission and gear meshing, the power is efficiently transmitted to the adjusting component and the rotating component, ensuring the smooth adjustment and folding of the backrest and support legs. The other output end of the double-shaft motor is connected with a steering gear through a magnetic coupler, realizing the non-contact transmission of power.
[0008] Specifically, in this technical solution, the double-shaft motor is fixedly screwed to the inner top wall of the special-shaped protective shell through a mounting plate. The first worm is located in the protective shell and is rotatably connected to the inner wall. Both ends of the transmission shaft are rotatably connected to the inner wall of the protective shell. The steering gear is fixedly screwed to the inner top wall of the special-shaped protective shell through a connecting block. The double-shaft motor and the steering gear are fixed to the special-shaped protective shell through the mounting plate and the connecting block, ensuring the stability of the driving component during operation and reducing vibration and noise.
[0009] Specifically, in this technical solution, the adjusting component includes two rotating shafts. Both rotating shafts are fixed on the outer wall at the bottom end of the backrest. Second grooves are opened on the lower surfaces of both support blocks. First grooves matching the support blocks are opened on the upper surface of the supporting plate below the support blocks. The two rotating shafts are inserted into the second grooves and are rotatably connected to the groove walls. A fixed shaft is arranged above the transmission shaft. Horizontal shafts are fixedly connected to both ends of the fixed shaft. The ends of the two horizontal shafts are inserted into the first grooves and are rotatably connected to the groove walls. Through the cooperation of the rotating shafts, support blocks, and grooves, the stable support and flexible rotation of the backrest are realized. The transmission design of the transmission shaft, fixed shaft, and horizontal shaft ensures the accuracy and stability of the backrest angle adjustment.
[0010] Specifically, for this technical solution, second meshing gears are fixedly installed on the outer walls at both ends of the fixed shaft. Both of the second meshing gears are meshed and connected with the first meshing gear. Inner channel teeth are provided on the outer walls at the ends of each rotating shaft and the horizontal shaft. The two inner channel teeth are connected by chain drive. The design of chain drive further improves the adjustment accuracy and stability.
[0011] Specifically, for this technical solution, the rotating assembly includes a vertically arranged second worm. The top end of the second worm is flange-connected to the execution end of the steering gear. Second worm wheels are meshed and connected on both sides of the second worm. Rotating shafts are fixedly penetrated through both of the second worm wheels. Connecting shafts are provided on the sides of the two rotating shafts far away from the second worm. Transmission wheels are fixedly installed on the outer walls at both ends of the two connecting shafts and the rotating shafts. The transmission wheels are connected by transmission chain drive. The combination of worm and worm wheel drive and chain drive ensures the efficient transmission of power and the stable rotation of the support legs, making the support legs stable and reliable during the folding and unfolding processes.
[0012] Specifically, for this technical solution, the bottom end of the second worm is rotatably connected to the inner bottom wall of the special-shaped protective shell. Both ends of the two rotating shafts are rotatably connected to the inner wall of the special-shaped protective shell. Heat dissipation holes are provided on the shell wall of the special-shaped protective shell. The rotatable connection between the second worm and the rotating shafts and the special-shaped protective shell ensures the stability of the rotating assembly during the working process, reducing vibration and noise.
[0013] Specifically, for this technical solution, inverted U-shaped blocks are fixedly installed on the lower surface of the supporting plate at the positions of the four support legs. The top end of each support leg is located in the groove of the U-shaped block and is rotatably connected by a shaft rod. The ends of the two connecting shafts are fixedly connected to the shaft rod. The design of the U-shaped block and the shaft rod provides a stable support and rotation basis for the support legs, ensuring the smoothness of the support legs during the unfolding and folding processes.
[0014] Specifically, for this technical solution, magnetic limiting plates are installed on the outer walls of the four U-shaped blocks by screws. Magnets are provided on the inner sides of each magnetic limiting plate. Iron sheets are embedded on the inner sides of the top ends of each support leg and are magnetically adsorbed to the magnets. The magnetic adsorption design enhances the stability of the support legs during use and provides guarantee for the separate adjustment of the backrest.
[0015] Specifically, for this technical solution, an airbag cushion is covered on the surface of the backrest. A number of support airbags are provided on the surface of the airbag cushion. The airbag cushion can be inflated or deflated according to the body curve of the patient, providing the best support and comfort for the patient, relieving the spinal pressure and promoting recovery.
[0016] In summary, the present invention mainly has the following beneficial effects: Through the collaborative work of multiple components such as a supporting plate, four support legs, a backrest, a protective shell, a special-shaped protective shell, and a folding mechanism, the smooth folding and unfolding functions of the spinal rehabilitation chair are realized. After folding, the rehabilitation chair is small in size and relatively light in weight, facilitating the patient or caregiver to carry it between different rooms, providing great convenience for patients who need to frequently change the usage location, and improving the practicality and portability of the rehabilitation chair; After unfolding, the electromagnet is energized to magnetically adsorb and fix the iron sheet of the support leg. At this time, through the adjustment component, the angle of the backrest can be individually controlled according to the needs of the patient. The dual-axis motor drives the first worm and the first worm gear, and then drives the first meshing gear on the transmission shaft to rotate. At this time, under the action of the electromagnet and the magnetic coupler, the unfolded support legs remain stationary, realizing the angle adjustment of the backrest, so as to adapt to the body types and rehabilitation needs of different patients and provide the best support and comfort for the patients. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is the front isometric structural schematic diagram of the device of the present invention; Figure 2 is the oblique isometric structural schematic diagram of the device of the present invention; Figure 3 is the sectional structural schematic diagram of the supporting plate and the backrest of the present invention; Figure 4 is the structural schematic diagram of the supporting plate of the present invention; Figure 5 is of the present invention Figure 4 enlarged view of A inside; Figure 6 is of the present invention Figure 4 bottom isometric structural schematic diagram; Figure 7 is the front isometric structural schematic diagram of the folding mechanism of the present invention; Figure 8 is the front isometric connection structural schematic diagram of the driving component and the rotating component of the present invention; Figure 9 is the oblique isometric connection structural schematic diagram of the driving component and the rotating component of the present invention; Figure 10 is the connection structural schematic diagram of the adjustment component and the rotating component of the present invention.
[0018] Description of the Drawings: 1. Supporting plate; 101. Rotating groove; 1011. First groove; 102. Supporting block; 1021. Second groove; 103. U-shaped block; 1031. Supporting leg; 1032. Shaft rod; 1033. Magnetic limiting plate; 2. Backrest; 201. Airbag cushion; 3. Protective shell; 4. Special-shaped protective shell; 5. Folding mechanism; 6. Driving assembly; 601. Biaxial motor; 6011. Mounting plate; 602. First worm; 603. First worm gear; 604. Transmission shaft; 6041. First meshing gear; 605. Magnetic coupler; 606. Steering gear; 7. Adjusting assembly; 701. Rotating shaft; 702. Horizontal shaft; 703. Inner toothed track; 7031. Chain; 704. Second meshing gear; 705. Fixed shaft; 8. Rotating assembly; 801. Second worm; 802. Rotating shaft; 803. Transmission wheel; 8031. Transmission chain; 804. Second worm gear; 805. Connecting shaft. Detailed implementation manners
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.
[0020] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.
[0021] Embodiment
[0022] All electrical components in the present invention are controlled by a remote control, and commands are transmitted through wireless signals. A storage battery and a controller module are also provided in the special-shaped protective shell 4 for power supply and receiving remote control commands to control the operation of electrical components.
[0023] Please refer to Figure 1-7As shown in the figure, a rehabilitation chair for orthopedic spinal treatment includes a supporting plate 1, four supporting legs 1031 rotatably arranged below, a rotatable backrest 2, a protective shell 3, a special-shaped protective shell 4, and a folding mechanism 5 for folding the backrest 2 and the four supporting legs 1031. A rotating groove 101 is formed on one side of the supporting plate 1. Support blocks 102 are fixed on the upper surfaces of both sides of the supporting plate 1 located on both sides of the rotating groove 101. The two bottom ends of the backrest 2 are located between the two support blocks 102. An airbag cushion 201 is covered on the surface of the backrest 2. A number of support airbags are arranged on the surface of the airbag cushion 201. The airbag cushion 201 adopts the existing technology and will not be elaborated in detail in this article. Inverted U-shaped blocks 103 are fixed on the lower surface of the supporting plate 1 at the positions of the four supporting legs 1031. The top end of each supporting leg 1031 is located in the groove of the U-shaped block 103 and is rotatably connected through a shaft rod 1032. Magnetic limiting plates 1033 are installed on the outer walls of the four U-shaped blocks 103 through screws. Electromagnets are arranged on the inner sides of each magnetic limiting plate 1033. Iron sheets are embedded in the inner sides of the top ends of each supporting leg 1031 and are magnetically adsorbed by the electromagnets; The special-shaped protective shell 4 is installed on the lower surface of the supporting plate 1, and the protective shell 3 is installed in the rotating groove 101. The protruding end of the special-shaped protective shell 4 is in contact with the protective shell 3. Heat dissipation holes are formed on the shell wall of the special-shaped protective shell 4. The folding mechanism 5 is respectively arranged in the protective shell 3 and the special-shaped protective shell 4. The folding mechanism 5 is composed of a driving component 6, an adjusting component 7, and a rotating component 8. The driving component 6 is respectively connected with the adjusting component 7 and the rotating component 8. The adjusting component 7 is used to control the folding and unfolding of the backrest 2, and the adjusting component 7 can separately control the unfolding angle of the backrest 2 according to the needs of the patient. The rotating component 8 is used to control the rotation and folding of the four supporting legs 1031. The special-shaped protective shell 4 will not hinder the folding of the supporting legs 1031 according to its shape, ensuring a smooth folding process.
[0024] When the patient needs to use the rehabilitation chair, take out the rehabilitation chair and place it on a flat ground. Then the patient sends a signal to the controller module through the controller. After receiving the signal, the driving component 6 is started. The driving component 6 drives the adjusting component 7 and the rotating component 8 to work together. The backrest 2 slowly unfolds to a preset angle, and the four supporting legs 1031 are unfolded synchronously. After the four supporting legs 1031 are turned to the vertical position, they are restricted by the magnetic limiting plates 1033. And the electromagnet is started through the controller. The electromagnet is energized to generate magnetism to adsorb the iron sheet, ensuring that the supporting legs 1031 stand firmly. At this time, after the patient sits on the rehabilitation chair, the adjusting component 7 can be started again through the controller according to the comfort of the patient to finely adjust the angle of the backrest 2 to reach the best state; Thus, by implementing the smooth folding and unfolding functions of the spinal rehabilitation chair, the folded rehabilitation chair is small in volume and relatively light in weight, making it convenient for patients or caregivers to carry between different rooms. This provides great convenience for patients who need to frequently change the usage location, improving the practicality and portability of the rehabilitation chair. At the same time, it can adapt to the body shapes and rehabilitation needs of different patients, providing the best support and comfort for patients.
[0025] Please refer to Figure 5-10 As shown, the drive assembly 6 includes a dual-axis motor 601. One output end of the dual-axis motor 601 is flange-connected with a first worm 602. Above the first worm 602, there is a meshing connection with a first worm gear 603. A transmission shaft 604 is fixedly penetrated in the first worm gear 603. On the outer walls at both ends of the transmission shaft ⑥04, there are fixedly installed first meshing gears 6041. The other output end of the dual-axis motor 601 is connected with a steering gear 606 through a magnetic coupling 605. The dual-axis motor 601 is fixedly screwed to the inner top wall of the special-shaped protective shell 4 through a mounting plate 6011. The first worm 602 is located in the protective shell 3 and is rotationally connected with the inner wall. Both ends of the transmission shaft 604 are rotationally connected with the inner wall of the protective shell 3. The steering gear 606 is fixedly screwed to the inner top wall of the special-shaped protective shell 4 through a connecting block; The adjustment assembly 7 includes two rotating shafts 701. Both of the two rotating shafts 701 are fixed on the outer wall at the bottom end of the backrest 2. On the lower surfaces of the two support blocks 102, there are opened second grooves 1021. On the upper surface of the support plate 1, there are opened first grooves 1011 that match the second grooves 1021 below the support blocks 102. The two rotating shafts 701 are inserted into the second grooves 1021 and are rotationally connected with the groove walls. Above the transmission shaft 604, there is a fixed shaft 705. Both ends of the fixed shaft 705 are fixedly connected with horizontal shafts 702. The ends of the two horizontal shafts 702 are inserted into the first grooves 1011 and are rotationally connected with the groove walls. On the outer walls at both ends of the fixed shaft 705, there are fixedly installed second meshing gears 704. Both of the two second meshing gears 704 are meshed with the first meshing gears 6041. On the outer walls at the ends of each rotating shaft 701 and the horizontal shaft 702, there are opened inner channel teeth 703. The two inner channel teeth 703 are driven by a chain 7031.
[0026] After the controller module receives the start signal, the two output ends of the dual-axis motor 601 respectively drive the first worm 602 to rotate and drive the steering gear 606 to work through the magnetic coupling 605. The first worm 602 drives the first worm gear 603 to rotate, and the transmission shaft 604 rotates accordingly, driving the two first meshing gears 6041 to rotate. Furthermore, it drives the second meshing gears 704 and the fixed shaft 705 to rotate. The two horizontal shafts 702 rotate accordingly, and through the linkage of the chain 7031 and the inner channel teeth 703, it drives the rotating shafts 701 to rotate synchronously, realizing the unfolding or folding of the backrest 2; The steering device 606 controls the movement of the rotating component 8, so that the four support legs 1031 can be unfolded or folded. After the support legs 1031 are fixed by magnetic adsorption, when the angle of the backrest 2 needs to be adjusted, the patient can start the driving component 6 to control the adjustment component 7 to continue to operate. At this time, the rotating component 8 will not affect the operation of the driving component 6 under the fixation of the support legs 1031 and the action of the magnetic coupler 605, so that the backrest 2 can be adjusted in angle independently, ensuring that the patient uses it in a comfortable state.
[0027] See also Figure 7-9 As shown, the rotating assembly 8 includes a vertically arranged second worm 801, the top of the second worm 801 is connected to the execution end flange of the diverter 606, and the second worm wheels 804 are meshed and connected on both sides of the second worm 801. The two second worm wheels 804 are fixedly provided with a rotating shaft 802, and the two rotating shafts 802 are provided with a connecting shaft 805 on the side away from the second worm 801. The ends of the two connecting shafts 805 are fixedly connected to the shaft 1032, and the outer walls of the two connecting shafts 805 and the two ends of the rotating shaft 802 are fixed with transmission wheels 803. The transmission wheels 803 are connected by a transmission chain 8031. The bottom end of the second worm 801 is rotatably connected to the inner bottom wall of the special-shaped protective shell 4, and the two ends of the two rotating shafts 802 are rotatably connected to the inner wall of the special-shaped protective shell 4.
[0028] When the drive assembly 6 is started, the second worm 801 is controlled to rotate through the magnetic coupling 605 and the steering gear 606, so that the second worm gears 804 engaged on both sides rotate, and the two second worm gears 804 drive the rotating shaft 802 to rotate synchronously, and then drive the connecting shaft 805 to rotate through the transmission wheel 803 and the transmission chain 8031. The two connecting shafts 805 drive the support legs 1031 to unfold or fold through the shaft 1032, realizing the synchronous movement of the support legs 1031 and ensuring that the support legs 1031 remain stable during the unfolding or folding process.
[0029] The working principle of the present invention is: When a patient needs to use the rehabilitation chair, take out the rehabilitation chair and place it on a flat ground. Then the patient sends a signal to the controller module through the controller. After receiving the signal, the controller module starts the dual-axis motor 601. The two output ends of the dual-axis motor 601 respectively drive the first worm 602 to rotate and drive the steering gear 606 to work through the magnetic coupler 605. The first worm 602 drives the first worm gear 603 to rotate, and the transmission shaft 604 rotates accordingly, driving the two first meshing gears 6041 to rotate, and then driving the second meshing gear 704 and the fixed shaft 705 to rotate. The two horizontal shafts 702 rotate accordingly, and through the linkage of the chain 7031 and the inner track teeth 703, the rotating shaft 701 is driven to rotate synchronously, realizing the unfolding of the backrest 2; The steering gear 606 will control the second worm 801 to rotate, so that the two engaged second worm gears 804 rotate. Both of the two second worm gears 804 drive the penetrated rotating shafts 802 to rotate synchronously, and then drive the connecting shaft 805 to rotate through the transmission wheels 803 and the transmission chain 8031. The two connecting shafts 805 drive the support legs 1031 to unfold through the shaft rods 1032. After the four support legs 1031 are turned to the vertical position, they are restricted by the magnetic limiting plates 1033. And the electromagnet is started through the controller. The electromagnet is energized to generate magnetism to adsorb the iron sheet, so that the support legs 1031 stand firmly. At this time, after the patient sits on the rehabilitation chair, the drive assembly 6 is started through the controller to control the adjustment assembly 7 to continue running. At this time, the rotating assembly 8, under the fixation of the support legs 1031 and the action of the magnetic coupler 605, will not affect the operation of the drive assembly 6, and the backrest 2 can be adjusted independently in angle to reach the best state, ensuring that the patient uses it in a comfortable state.
[0030] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations to the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A rehabilitation chair for orthopedic spinal treatment, comprising a support plate (1), four support legs (1031) rotatably arranged below, a rotatable backrest (2), a protective shell (3), a special-shaped protective shell (4), and a folding mechanism (5) for folding the backrest (2) and the four support legs (1031), characterized in that, One side of the supporting plate (1) is provided with a rotating groove (101). On the upper surfaces of the supporting plate (1) on both sides of the rotating groove (101), supporting blocks (102) are fixedly arranged. The two sides of the bottom end of the backrest (2) are located between the two supporting blocks (102). An irregular protective shell (4) is installed on the lower surface of the supporting plate (1). A protective shell (3) is installed in the rotating groove (101). The protruding end of the irregular protective shell (4) is in contact with the protective shell (3). The folding mechanism (5) is respectively arranged in the protective shell (3) and the irregular protective shell (4). The folding mechanism (5) is composed of a driving component (6), an adjusting component (7) and a rotating component (8). The driving component (6) is respectively connected with the adjusting component (7) and the rotating component (8). The adjusting component (7) is used to control the folding and unfolding of the backrest (2), and the adjusting component (7) can separately control the unfolding angle of the backrest (2) according to the needs of the patient. The rotating component (8) is used to control the rotation and folding of the four supporting legs (1031).
2. The rehabilitation chair for orthopedic spinal treatment according to claim 1, wherein, The driving component (6) includes a double-shaft motor (601). One output end of the double-shaft motor (601) is connected with a first worm (602) through a flange. A first worm gear (603) is meshed above the first worm (602). A transmission shaft (604) is fixedly penetrated in the first worm gear (603). First meshing gears (6041) are fixedly installed on the outer walls at both ends of the transmission shaft (604). The other output end of the double-shaft motor (601) is connected with a steering gear (606) through a magnetic coupler (605).
3. The orthopedic spinal rehabilitation chair according to claim 2, characterized in that, The double-shaft motor (601) is fixedly screwed to the inner top wall of the irregular protective shell (4) through a mounting plate (6011). The first worm (602) is located in the protective shell (3) and is rotatably connected with the inner wall. Both ends of the transmission shaft (604) are rotatably connected with the inner wall of the protective shell (3). The steering gear (606) is fixedly screwed to the inner top wall of the irregular protective shell (4) through a connecting block.
4. The rehabilitation chair for orthopedic spinal treatment according to claim 2, characterized in that, The adjusting component (7) includes two rotating shafts (701). Both of the two rotating shafts (701) are fixedly arranged on the outer wall of the bottom end of the backrest (2). Second grooves (1021) are respectively opened on the lower surfaces of the two supporting blocks (102). First grooves (1011) matching with the second grooves are opened on the upper surface of the supporting plate (1) below the supporting blocks (102). The two rotating shafts (701) are inserted into the second grooves (1021) and are rotatably connected with the groove walls. A fixed shaft (705) is arranged above the transmission shaft (604). Horizontal shafts (702) are fixedly connected to both ends of the fixed shaft (705). The ends of the two horizontal shafts (702) are inserted into the first grooves (1011) and are rotatably connected with the groove walls.
5. The rehabilitation chair for orthopedic spinal treatment according to claim 4, wherein On both outer walls of the two ends of the fixed shaft (705), second meshing gears (704) are fixedly installed. Both of the second meshing gears (704) are meshed and connected with the first meshing gear (6041). Inner teeth (703) are provided on the outer walls of the ends of each rotating shaft (701) and the horizontal shaft (702). The two inner teeth (703) are connected by a chain (7031) for transmission.
6. The rehabilitation chair for orthopedic spinal treatment according to claim 2, wherein, The rotating assembly (8) includes a vertically arranged second worm (801). The top end of the second worm (801) is flange-connected to the execution end of the steering gear (606). Second worm wheels (804) are meshed and connected to both sides of the second worm (801). Rotating shafts (802) are fixedly penetrated through both of the second worm wheels (804). Connecting shafts (805) are arranged on one side of the two rotating shafts (802) away from the second worm (801). Transmission wheels (803) are fixedly installed on the outer walls of the two ends of the two connecting shafts (805) and the rotating shafts (802). The transmission wheels (803) are connected by a transmission chain (8031) for transmission.
7. The orthopedic spine treatment rehabilitation chair according to claim 6, characterized in that, The bottom end of the second worm (801) is rotatably connected to the inner bottom wall of the special-shaped protective shell (4). Both ends of the two rotating shafts (802) are rotatably connected to the inner wall of the special-shaped protective shell (4). Heat dissipation holes are provided on the shell wall of the special-shaped protective shell (4).
8. The rehabilitation chair for orthopedic spinal treatment according to claim 6, characterized in that, Inverted U-shaped blocks (103) are fixedly installed on the lower surface of the supporting plate (1) at the positions of the four supporting legs (1031). The top end of each supporting leg (1031) is located in the groove of the U-shaped block (103) and is rotatably connected by a shaft rod (1032). The ends of the two connecting shafts (805) are fixedly connected to the shaft rod (1032).
9. The rehabilitation chair for orthopedic spinal treatment according to claim 8, characterized in that, Magnetic limiting plates (1033) are installed on the outer walls of the four U-shaped blocks (103) by screws. Electromagnets are arranged on the inner sides of each magnetic limiting plate (1033). Iron sheets are embedded in the inner sides of the top ends of each supporting leg (1031) and are magnetically adsorbed to the electromagnets.
10. The rehabilitation chair for orthopedic spinal treatment according to claim 1, characterized in that, An airbag cushion (201) covers the surface of the backrest (2). A number of supporting airbags are arranged on the surface of the airbag cushion (201).