Electric traction chair for cervical vertebra

Abstract

The invention discloses a cervical vertebra electric traction chair, and relates to the field of cervical vertebra nursing, the cervical vertebra electric traction chair comprises a chair main body, the top of the chair main body is provided with a top block, the front part of the top block is fixedly connected with a connecting frame, one end of the bottom of the connecting frame is provided with a spring, the bottom of the spring is provided with a tray, and the top of the connecting frame is provided with a left-right traction structure; the left-right traction structure comprises two cables, two pairs of fixing blocks are fixedly connected to one end of the top of the connecting frame, wire coils are rotationally connected into each pair of fixing blocks, the two cables are wound on the outer surfaces of the two wire coils respectively, a steel block is fixedly connected to the bottom end of a spring, and a connecting sleeve is fixedly connected to the bottom of the outer surface of the steel block. The outer surface of the connecting sleeve is fixedly connected with two first connecting blocks. By arranging the left traction structure and the right traction structure, stiffness and aching pain of neck muscles are effectively relieved, comprehensiveness and comfort of traction treatment are enhanced, and the composite rehabilitation effect of combining static traction and dynamic movement is achieved.

Description

Technical Field

[0001] This invention relates to the field of cervical spine care, and in particular to an electric cervical traction chair. Background Technology

[0002] In daily life, many people experience neck discomfort or suffer from cervical spondylosis due to various lifestyle and study habits. Prolonged use of mobile phones with the head down, desk work, and poor posture put enormous pressure on the cervical spine, causing not only neck and shoulder pain, stiffness, dizziness, and numbness in the hands, but also, in severe cases, impacting quality of life and work efficiency. To address this issue, the electric cervical traction chair offers a scientific and convenient home solution. Through gentle and continuous traction, it effectively widens the intervertebral space, reduces pressure on the intervertebral discs, helps reposition misaligned facet joints, and relaxes spasmodic muscles, thereby alleviating symptoms at their root. However, existing cervical traction devices generally suffer from the drawback of having a single treatment mode. They can only provide rigid vertical traction force and cannot achieve complex movements that conform to human biomechanical characteristics, such as lateral flexion and rotation. Therefore, it is difficult to perform multi-dimensional and dynamic relaxation and rehabilitation treatment of the neck muscle groups, resulting in significant limitations in treatment effects. Summary of the Invention

[0003] The main objective of this invention is to provide an electric cervical traction chair that can effectively solve the technical problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A cervical spine electric traction chair includes a chair body. A top block is provided on the top of the chair body. A connecting frame is fixedly connected to the front of the top block. A spring is provided at one end of the bottom of the connecting frame. A tray is provided at the bottom of the spring. A left and right traction structure is provided on the top of the connecting frame. The left and right traction structure includes two cables. Two pairs of fixing blocks are fixedly connected to one end of the top of the connecting frame. A coil is rotatably connected inside each pair of fixing blocks. The two cables are respectively wound around the outer surface of the two coils. A steel block is fixedly connected to the bottom of the spring. A connecting sleeve is fixedly connected to the outer surface of the steel block near the bottom. Two connecting blocks are fixedly connected to the outer surface of the connecting sleeve. One end of each connecting block is rotatably connected to a connecting block. One end of each connecting block is fixedly connected to a docking frame. Connecting bodies are fixedly connected to the front and rear parts of the two docking frames. The top of the tray is fixedly connected to the bottom of the connecting body.

[0005] As a further embodiment of the present invention, a threaded conical cylinder is fixedly connected to one end of the bottom of the connecting frame. The inside of the threaded conical cylinder has four insertion holes that penetrate through the outer surface. A steel block is also fixedly connected to the top of the spring. A secondary cable is fixedly connected to the top of the top steel block through the four insertion holes. A fixing sleeve is threadedly connected to the outer surface of the threaded conical cylinder.

[0006] As a further embodiment of the present invention, a sliding groove is provided inside the main body of the chair, a slider is slidably connected inside the sliding groove, a screw is rotatably connected inside the sliding groove, a straight rod is fixedly connected to the bottom of the slider, and the bottom end of the screw passes through the bottom of the main body of the chair and is fixedly connected to a bottom shaft.

[0007] As a further embodiment of the present invention, the top of the straight rod is fixedly connected to the bottom of the top block, and the slider is threadedly connected to the screw.

[0008] As a further embodiment of the present invention, a protective cover is fixedly connected to the bottom of the chair body, and a motor is fixedly connected to the bottom of the chair body and the front part near the protective cover. Both the output shaft of the motor and the bottom end of the bottom shaft are fixedly connected to bevel gears, and the two bevel gears mesh with each other.

[0009] As a further embodiment of the present invention, a reversing switching structure is provided between the two pairs of fixed blocks. The reversing switching structure includes two bevel gear sleeves. A motor is fixedly connected to the side of the outermost fixed block. A rotating shaft is fixedly connected between the two pairs of fixed blocks. A retaining sleeve is rotatably connected to the outer surface of the rotating shaft and inside the coil on one side. A retaining groove is opened inside the coil on one side. The two bevel gear sleeves are symmetrically arranged on the outer surface of the rotating shaft. A connecting gear is rotatably connected to the outer surface of the rotating shaft and between the two bevel gear sleeves.

[0010] As a further embodiment of the present invention, the two bevel sleeves mesh with the connecting gear, and the sleeve and the slot are adaptively matched.

[0011] As a further embodiment of the present invention, a sleeve to be fixedly connected is fixedly connected to one end of the bevel sleeve on the other side and located on the outer surface of the rotating shaft, and the sleeve to be fixedly connected to the coil on the other side.

[0012] As a further embodiment of the present invention, the interior of the chair body is provided with two slide grooves on both sides of the slide groove one. A slider two is slidably connected inside the slide groove two, and a screw two is rotatably connected inside the slide groove two. Two connecting rods are fixedly connected to the bottom of the slider two, and a reinforcing block is fixedly connected to the top of the connecting rods through the top of the chair body. A reinforcing rod is fixedly connected between the front of the reinforcing block and the side of the connecting frame.

[0013] As a further embodiment of the present invention, the second slider is rotatably connected to the second screw, the output shaft of the motor is fixedly connected to one end of the ferrule, and one end of the cable is fixedly connected to the docking frame.

[0014] The beneficial effects of this invention are as follows: By setting up a left and right traction structure and adopting the mechanical principle of synchronous reverse cable winding and unwinding of double-coil reels, the key dynamic movement of cervical lateral flexion in rehabilitation treatment has been successfully reproduced. This device allows therapists to precisely set the twisting angle and rhythm through the control system, thereby performing targeted stretching and relaxation of the lateral neck muscles, effectively breaking the limitations of single vertical traction and promoting the recovery of cervical blood circulation and joint mobility. By setting up a reverse synchronization control device, the core of which is a reverse transmission chain driven by a motor and formed by a bevel gear set and connecting gears, this ingenious design ensures that under the drive of a single motor, the two reels can automatically generate equal and opposite rotational motions. This fundamentally ensures that the force on both sides is absolutely balanced when the tray is tilted, eliminating the risk of cervical spine twisting or lateral impact caused by asynchronous motion, making the treatment process safer and more reliable. By incorporating a buffer structure that connects springs and steel blocks, a crucial elastic element is introduced into the traction transmission chain. The springs effectively dampen minute vibrations and instantaneous overload forces generated during motor start-up, stopping, or operation, acting as a flexible force buffer interface for the user's jaw, greatly reducing direct pressure on the temporomandibular joint, making it especially suitable for sensitive individuals requiring long-term traction treatment. By employing a dual fixing mechanism of auxiliary cables and a threaded conical cylinder, a mechanical fixing scheme combining radial locking and axial compression is creatively adopted. Tightening the fixing sleeve causes the conical cylinder to retract, simultaneously clamping the central steel block and four auxiliary cables, forming a double-insurance connection effect. This design greatly enhances the connection rigidity and fatigue resistance of the tray under complex movement conditions, ensuring the durability of the treatment equipment under long-term repeated use; By setting up reinforcing rods and sliders, a symmetrical auxiliary load-bearing frame is constructed outside the main lifting structure. The system's double slider and double screw design is synchronized with the main lifting mechanism, which can effectively decompose and transfer the torque generated by the tray and the user's chin to the main frame of the chair. This significantly enhances the structural rigidity of the connecting frame in the cantilever state, eliminates the potential for deformation or breakage due to long-term load, and ensures the overall stability and lifespan of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an electric cervical traction chair according to the present invention; Figure 2 This is a diagram illustrating the springs and tray of an electric cervical traction chair according to the present invention. Figure 3 This is a disassembled view of the threaded conical cylinder of an electric cervical traction chair according to the present invention; Figure 4 This is a sectional view of the main body of an electric cervical traction chair according to the present invention. Figure 5This is a bottom view of the anatomical disassembly of the protective cover of the electric cervical traction chair of the present invention. Figure 6 This is a diagram of the left and right traction structure of an electric cervical traction chair according to the present invention; Figure 7 This invention relates to an electric cervical traction chair. Figure 6 Enlarged view of part A; Figure 8 This is a diagram illustrating the anatomical dissection and reversible switching structure of the cervical electric traction chair of the present invention. Figure 9 This is a disassembled diagram of the spool of an electric cervical traction chair according to the present invention; Figure 10 This is a cross-sectional view of the main body of the electric cervical traction chair of the present invention, showing the second slider.

[0016] In the diagram: 1. Chair body; 2. Top block; 3. Connecting frame; 4. Tray; 5. Left and right traction structure; 6. Spring; 7. Steel block; 8. Secondary cable; 9. Threaded conical cylinder; 10. Insertion hole; 11. Slider II; 12. Slide groove I; 13. Slider I; 14. Screw I; 15. Bottom shaft; 16. Motor; 17. Bevel gear; 18. Protective cover; 19. Fixing block; 20. Cable reel; 21. Cable; 22. Connecting sleeve; 23. Connecting block I; 24. Connecting block II; 25. Docking frame; 26. Connector; 27. Motor; 28. Reversing switching structure; 29. ​​Bevel gear sleeve; 30. Rotating shaft; 31. Sleeve; 32. Slot; 33. Connecting gear; 34. Reinforcing rod; 35. Reinforcing block; 36. Slide groove II; 37. Screw II; 38. Straight rod. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figure 1 - Figure 10 As shown, an electric cervical traction chair includes a chair body 1, a top block 2 on the top of the chair body 1, a connecting frame 3 fixedly connected to the front of the top block 2, a spring 6 at one end of the bottom of the connecting frame 3, a tray 4 at the bottom of the spring 6, a left and right traction structure 5 on the top of the connecting frame 3, the left and right traction structure 5 including two cables 21, two pairs of fixing blocks 19 fixedly connected to one end of the top of the connecting frame 3, and a coil 20 rotatably connected inside each pair of fixing blocks 19, with the two cables 21 respectively wound around the outer surface of the two coils 20; A steel block 7 is fixedly connected to the bottom of the spring 6. A connecting sleeve 22 is fixedly connected to the bottom of the outer surface of the steel block 7. Two connecting blocks 1 23 are fixedly connected to the outer surface of the connecting sleeve 22. One end of each of the two connecting blocks 1 23 is rotatably connected to a connecting block 24. One end of each of the two connecting blocks 24 is fixedly connected to a docking frame 25. A connecting body 26 is fixedly connected to the front and rear parts of the two docking frames 25. The top of the tray 4 is fixedly connected to the bottom of the connecting body 26. In actual operation, the user first sits on the main body of the chair 1, then places their chin on the top of the tray 4, and then starts the motor 16. Through two meshing bevel gears 17, the bottom shaft 15 is driven to rotate, which in turn drives the screw 14 to rotate synchronously. This causes the slider 13 and the two straight rods 38 to move upward together, which in turn drives the top block 2 and the connecting frame 3 to move upward synchronously, which in turn drives the tray 4 to move upward until the tray 4 moves to the appropriate position, thereby achieving the effect of providing a gentle and continuous upward traction force to the cervical spine. By activating the left and right traction structure 5, the tray 4 can be rotated slightly to the left and right, thereby achieving the effect of twisting the user's cervical spine to the left and right. The specific steps of the left and right traction structure 5 are as follows: rotate the coil 20 on one side clockwise and the coil 20 on the other side counterclockwise. This causes the cable 21 on one side to be wound up and the cable 21 on the other side to be unwound. As a result, the tray 4 is lifted on one side, which causes the user's cervical spine to twist to one side. In addition to providing vertical upward traction, the tray 4 is driven to perform controllable small-amplitude tilting movements on the left and right by independently controlling the winding and unwinding of the cables 21 on both sides. This simulates the left and right twisting movements of the cervical spine in manual massage, effectively relieving stiffness and soreness of the neck muscles, enhancing the comprehensiveness and comfort of traction therapy, and achieving a composite rehabilitation effect that combines static traction and dynamic activity.

[0019] In this embodiment, a threaded tapered cylinder 9 is fixedly connected to one end of the bottom of the connecting frame 3. The inside of the threaded tapered cylinder 9 is provided with four insertion holes 10 through the outer surface. A steel block 7 is also fixedly connected to the top of the spring 6. The top of the steel block 7 is fixedly connected to the auxiliary cable 8 through the four insertion holes 10. A fixing sleeve is threadedly connected to the outer surface of the threaded tapered cylinder 9. When installing the tray 4, first pass the four auxiliary cables 8 through the four insertion holes 10 respectively, and then tighten the fixing sleeve so that the threaded conical cylinder 9 contracts from the bottom to the top, thereby squeezing and fixing the steel block 7. At the same time, the top of the fixing sleeve will be with the four auxiliary cables 8, thus completing the fixing of the auxiliary cables 8. This gives the steel block 7 a double fixing method, thereby completing the fixing process of the tray 4.

[0020] In this embodiment, a sliding groove 12 is provided inside the chair body 1. A slider 13 is slidably connected inside the sliding groove 12. A screw 14 is rotatably connected inside the sliding groove 12. A straight rod 38 is fixedly connected to the bottom of the slider 13. The bottom end of the screw 14 passes through the bottom of the chair body 1 and is fixedly connected to a bottom shaft 15.

[0021] In this embodiment, the top of the straight rod 38 is fixedly connected to the bottom of the top block 2, and the slider 13 is threadedly connected to the screw 14.

[0022] In this embodiment, a protective cover 18 is fixedly connected to the bottom of the chair body 1, and a motor 16 is fixedly connected to the bottom of the chair body 1 and the front part of the protective cover 18. A bevel gear 17 is fixedly connected to the output shaft of the motor 16 and the bottom end of the bottom shaft 15, and the two bevel gears 17 mesh with each other.

[0023] In this embodiment, a reversing switching structure 28 is provided between the two pairs of fixed blocks 19. The reversing switching structure 28 includes two bevel sleeves 29. A motor 27 is fixedly connected to the side of the outermost fixed block 19. A rotating shaft 30 is fixedly connected between the two pairs of fixed blocks 19. A retaining sleeve 31 is rotatably connected to the outer surface of the rotating shaft 30 and inside the coil 20 on one side. A slot 32 is opened inside the coil 20 on one side. The two bevel sleeves 29 are symmetrically arranged on the outer surface of the rotating shaft 30. A connecting gear 33 is rotatably connected to the outer surface of the rotating shaft 30 and between the two bevel sleeves 29. The motor 27 is started, which drives the sleeve 31 to rotate clockwise. This rotation, through the slot 32, causes the coil 20 on one side to rotate clockwise. As the sleeve 31 rotates clockwise, it also drives the bevel sleeve 29 on one side to rotate clockwise. Through the action of the connecting gear 33, the bevel sleeve 29 on the other side rotates counterclockwise. This causes the fixed sleeve to rotate counterclockwise, which in turn drives the coil 20 on the other side to rotate counterclockwise. Thus, the opposite rotations of the two coils 20 can be synchronized.

[0024] In this embodiment, the two bevel sleeves 29 mesh with the connecting gear 33, and the ferrule 31 and the slot 32 are adaptively matched.

[0025] In this embodiment, a sleeve to be determined is fixedly connected to one end of the bevel sleeve 29 on the other side and located on the outer surface of the rotating shaft 30. The sleeve to be determined is fixedly connected to the coil 20 on the other side.

[0026] In this embodiment, a second slide groove 36 is provided inside the chair body 1 on both sides of the slide groove 12. A second slider 11 is slidably connected inside the slide groove 36. A second screw 37 is rotatably connected inside the slide groove 36. Two connecting rods are fixedly connected to the bottom of the second slider 11. A reinforcing block 35 is fixedly connected to the top of the connecting rods through the top of the chair body 1. A reinforcing rod 34 is fixedly connected between the front of the reinforcing block 35 and the side of the connecting frame 3. When the connecting frame 3 rises due to the rise of slider 13, it will drive the two reinforcing rods 34 to move upwards simultaneously, thereby driving the two reinforcing blocks 35 and the connecting rod to move upwards together, thereby driving the two sliders 11 to rise, and driving the two screws 37 to rotate synchronously. The two reinforcing rods 34 support and reinforce the connecting frame 3, preventing the connecting frame 3 from breaking due to excessive weight at the front.

[0027] In this embodiment, slider 21 is rotatably connected to screw 237, the output shaft of motor 27 is fixedly connected to one end of sleeve 31, and one end of cable 21 is fixedly connected to docking frame 25.

[0028] It should be noted that this invention is an electric cervical traction chair. In use, rotating the coil 20 on one side clockwise and the coil 20 on the other side counterclockwise causes the cable 21 on one side to be wound up and the cable 21 on the other side to be unwound. This causes the tray 4 to be lifted on one side, thus achieving the effect of twisting the user's cervical spine to one side. In addition to providing vertical upward traction, by independently controlling the winding and unwinding of the cables 21 on both sides, the tray 4 is driven to perform controllable small-amplitude tilting movements to the left and right, thereby simulating the left and right twisting movements of the cervical spine in manual massage. This effectively relieves the stiffness and soreness of the neck muscles, enhances the comprehensiveness and comfort of traction therapy, and achieves a composite rehabilitation effect that combines static traction and dynamic activity. When installing the tray 4, first pass the four auxiliary cables 8 through the four insertion holes 10 respectively, and then tighten the fixing sleeve so that the threaded conical cylinder 9 shrinks from the bottom to the top, thereby squeezing and fixing the steel block 7. At the same time, the top of the fixing sleeve will be with the four auxiliary cables 8, thereby completing the fixing of the auxiliary cables 8. This gives the steel block 7 a double fixing means, thus completing the fixing process of the tray 4. The motor 27 is started, which drives the sleeve 31 to rotate clockwise. This rotation, through the slot 32, drives the coil 20 on one side to rotate clockwise. As the sleeve 31 rotates clockwise, it drives the bevel sleeve 29 on one side to rotate clockwise. Through the action of the connecting gear 33, the bevel sleeve 29 on the other side rotates counterclockwise. This causes the fixed sleeve to rotate counterclockwise, which in turn drives the coil 20 on the other side to rotate counterclockwise. Thus, the opposite rotations of the two coils 20 can be synchronized. When the connecting frame 3 rises due to the rise of slider 13, it will drive the two reinforcing rods 34 to move upwards simultaneously, thereby driving the two reinforcing blocks 35 and the connecting rod to move upwards together, thereby driving the two sliders 11 to rise, and driving the two screws 37 to rotate synchronously. The two reinforcing rods 34 support and reinforce the connecting frame 3, preventing the connecting frame 3 from breaking due to excessive weight at the front.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A cervical traction chair, comprising a chair body (1), wherein a top block (2) is provided on the top of the chair body (1), a connecting frame (3) is fixedly connected to the front of the top block (2), a spring (6) is provided at one end of the bottom of the connecting frame (3), and a tray (4) is provided at the bottom of the spring (6), characterized in that: The top of the connecting frame (3) is provided with a left and right traction structure (5), which includes two cables (21). The top of the connecting frame (3) is fixedly connected to one end with two pairs of fixing blocks (19). Each pair of fixing blocks (19) is rotatably connected to a coil (20). The two cables (21) are respectively wound around the outer surface of the two coils (20). A steel block (7) is fixedly connected to the bottom of the spring (6). A connecting sleeve (22) is fixedly connected to the bottom of the outer surface of the steel block (7). Two connecting blocks (23) are fixedly connected to the outer surface of the connecting sleeve (22). One end of each connecting block (23) is rotatably connected to a connecting block (24). One end of each connecting block (24) is fixedly connected to a docking frame (25). The front and rear parts of each docking frame (25) are fixedly connected to a connecting body (26). The top of the tray (4) is fixedly connected to the bottom of the connecting body (26).

2. The cervical electric traction chair according to claim 1, characterized in that: The bottom of the connecting frame (3) is fixedly connected to a threaded conical cylinder (9) at one end. The inside of the threaded conical cylinder (9) has four insertion holes (10) through its outer surface. The top of the spring (6) is also fixedly connected to a steel block (7). The top of the steel block (7) at the top is fixedly connected to the auxiliary cable (8) through the four insertion holes (10). The outer surface of the threaded conical cylinder (9) is threadedly connected to a fixing sleeve.

3. The cervical electric traction chair according to claim 1, characterized in that: The chair body (1) has a sliding groove (12) inside, a slider (13) is slidably connected inside the sliding groove (12), a screw (14) is rotatably connected inside the sliding groove (12), a straight rod (38) is fixedly connected to the bottom of the slider (13), and a bottom shaft (15) is fixedly connected to the bottom of the screw (14) through the bottom of the chair body (1).

4. The electric cervical traction chair according to claim 1, characterized in that: The top of the straight rod (38) is fixedly connected to the bottom of the top block (2), and the slider (13) is threadedly connected to the screw (14).

5. A cervical electric traction chair according to claim 3, characterized in that: The bottom of the chair body (1) is fixedly connected to a cover (18). A motor (16) is fixedly connected to the bottom of the chair body (1) and the front of the cover (18). The output shaft of the motor (16) and the bottom end of the bottom shaft (15) are both fixedly connected to bevel gears (17), and the two bevel gears (17) mesh with each other.

6. The electric cervical traction chair according to claim 1, characterized in that: A reversing switching structure (28) is provided between the two pairs of fixed blocks (19). The reversing switching structure (28) includes two bevel sleeves (29). A motor (27) is fixedly connected to the side of the outermost fixed block (19). A rotating shaft (30) is fixedly connected between the two pairs of fixed blocks (19). A retaining sleeve (31) is rotatably connected to the outer surface of the rotating shaft (30) and inside the coil (20) on one side. A slot (32) is opened inside the coil (20) on one side. The two bevel sleeves (29) are symmetrically arranged on the outer surface of the rotating shaft (30). A connecting gear (33) is rotatably connected to the outer surface of the rotating shaft (30) and between the two bevel sleeves (29).

7. A cervical electric traction chair according to claim 6, characterized in that: The two bevel sleeves (29) mesh with the connecting gear (33), and the sleeve (31) and the slot (32) are adaptively matched.

8. A cervical electric traction chair according to claim 6, characterized in that: A sleeve to be fixedly connected to one end of the bevel sleeve (29) on the other side and to the outer surface of the rotating shaft (30), and the sleeve to be fixedly connected to the coil (20) on the other side.

9. A cervical electric traction chair according to claim 6, characterized in that: The chair body (1) has two slide grooves (36) on both sides of the slide groove one (12). The slide groove two (36) is slidably connected to the slide block two (11). The slide groove two (36) is rotatably connected to the slide rod two (37). The bottom of the slide block two (11) is fixedly connected to two connecting rods. The top of the connecting rods passes through the top of the chair body (1) and is fixedly connected to a reinforcing block (35). The front of the reinforcing block (35) is fixedly connected to the side of the connecting frame (3) with a reinforcing rod (34).

10. A cervical spine electric traction chair according to claim 9, characterized in that: The second slider (11) is rotatably connected to the second screw (37), the output shaft of the motor (27) is fixedly connected to one end of the sleeve (31), and one end of the cable (21) is fixedly connected to the docking frame (25).

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