Swinging traction chair
By designing the seat assembly of the rocking traction chair to cooperate with the arm assembly, longitudinal and reciprocating rotation movements are achieved, solving the problem that existing lumbar traction equipment cannot twist the waist and improving the waist stretching effect.
Patent Information
- Application Number
- CN202421930179.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-10
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-08-10
AI Technical Summary
The existing lumbar traction device cannot achieve the waist bending and stretching effect such as waist twisting, which reduces the use effect of the lumbar traction device.
A rocking traction chair is designed, which realizes longitudinal stretching and reciprocating rotation through the cooperation of the seat assembly and the support arm assembly. Combined with the angle adjustment mechanism, it provides longitudinal and reciprocating waist twisting traction effects.
The invention realizes effective longitudinal and reciprocating twisting and stretching of the waist, improves the use effect of the lumbar traction equipment, and enhances the market promotion prospect.
Smart Images

Figure CN223311389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rehabilitation equipment, in particular to a rocking traction chair. Background Art
[0002] Lumbar disc herniation (LDH) is a disease caused by lumbar vertebrae degeneration or external force, which causes the lumbar disc annulus rupture, nucleus pulposus protrusion, and compression of nerve roots, blood vessels, spinal cord, cauda equina, etc., resulting in low back pain and radiating pain in the lower limbs.
[0003] For the treatment of lumbar disc herniation, in addition to medication and surgery, the most effective treatment is traction therapy; among the traction devices for lumbar traction treatment, the traction device that can exert opposite traction on the patient's waist is the most effective. There are many types of such traction equipment. Its main principle and feature is to fix the upper part of the body, that is, the thorax, and the body below the pelvis respectively, and then apply opposite pulling force to these two parts, and then apply continuous opposite traction to the waist.
[0004] Patent No. ZL202020183691.4 discloses a lumbar traction treatment and maintenance chair, which can achieve a traction and stretching effect on the human waist. However, the structure can only perform longitudinal stretching operations on both sides of the human chest area, so that the human waist can only have a longitudinal stretching effect, and cannot achieve waist bending and stretching effects such as twisting the waist, which seriously reduces the use effect of the lumbar traction equipment. It is necessary to improve it. Utility Model Content
[0005] The purpose of this utility model is to solve the above problems and provide a rocking traction chair with simple structure and convenient use.
[0006] In order to achieve the above purpose, the technical solution of the utility model is:
[0007] A rocking traction chair comprises a seat assembly and a bottom frame, wherein the upper end of the bottom frame is connected to a movable mechanism and is connected to the seat assembly through the movable mechanism; the movable mechanism comprises a fixed frame, the lower part of the fixed frame is connected to a rocking assembly and is connected to the seat assembly through the rocking assembly, the upper part of the fixed frame is connected to a traction assembly and is connected to a support arm assembly arranged above the seat assembly through the traction assembly; the bottom end of the movable mechanism is provided with an angle adjustment mechanism and is connected to the bottom frame through the angle adjustment mechanism.
[0008] The fixed frame is arranged in a T-shape and is fixedly connected to a fixed shell in a rectangular column shape; the rocking assembly includes a rotating unit and a power unit, the front end of the rotating unit is connected to the seat assembly, and the rear end of the rotating unit is connected to the front end end wall of the bottom of the fixed frame; the power unit is arranged on one side of the rotating unit, the bottom end of the power unit is connected to the bottom end wall inside the fixed shell, and the upper end of the power unit is connected to the rotating unit.
[0009] Furthermore, the rotating unit includes a supporting plate and a rotating plate. The supporting plate is fixedly connected to the front end of the bottom of the fixed frame. The center position of the supporting plate is rotatably connected to the center position of the rotating plate through a bearing. A plurality of bull's eye ball bearings are provided at the rear end of the rotating plate along the circumferential direction of the rotating plate and contact the front end surface of the supporting plate through the bull's eye ball bearings. The front end of the rotating plate passes through the fixed shell and is fixedly connected to the seat assembly; a power rod is fixedly connected to one side of the rotating plate and is connected to the power unit through the power rod.
[0010] Furthermore, the power unit includes a first power motor, a first power screw rod, and a first nut member. A first connecting ear is provided at the bottom end of the first power motor and is connected to the second connecting ear pin at the bottom end of the fixed shell through the first connecting ear. The top of the first power motor is transmission-connected to the first power screw rod. A first nut member is sleeved on the outer side of the first power screw rod and the first nut member is threadedly connected to the first power screw rod. A positioning shaft is provided on one side of the first nut member and is connected to the power rod pin shaft provided on one side of the rotating disk through the positioning shaft; a first dividing gear is fixedly sleeved on the first power screw rod and is connected to the first angle sensor provided on one side of the first power motor through the first dividing gear.
[0011] Furthermore, the seat assembly includes a seat frame and a seat plate. The seat frame is in a horizontal Z-shape. The rear end of the seat frame is fixedly connected to the front end of the rotating disk, and the outer side of the front end of the seat frame is fixedly connected to the seat plate.
[0012] Furthermore, the traction assembly includes a track frame, a movable frame, a second power motor, a second power screw, and a second nut member. The track frame is longitudinally arranged and fixedly connected to the top of the fixed frame body. The movable frame is slidably connected to the track frame and the movable frame can slide along the length direction of the track frame. The front end of the movable frame passes through the fixed shell and is fixedly connected to the support arm assembly; the second power motor is connected to the bottom of the top of the fixed frame body, and the top of the second power motor is transmission-connected to the bottom end of the second power screw rod. The top of the second power screw rod passes through the top of the fixed frame body and extends between the track frames. The length direction of the second power screw rod is consistent with the length direction of the track frame. The second power screw rod is threadedly connected to the second nut member, the second nut member is located in the middle of the track frame and the second nut member is fixedly connected to the movable frame; the second power screw rod is fixedly sleeved with a second indexing gear and is connected to the second angle sensor arranged on one side of the second power motor through the second indexing gear.
[0013] Furthermore, a safety component is provided at the top of the track frame; the safety component includes a lifting frame, the lifting frame is sleeved on the outside of the track frame and the lifting frame can slide along the length direction of the track frame, a first spring is connected between the two ends of the lifting frame and the top of the fixed frame, two clip frames are symmetrically provided in the lifting frame, the two clip frames are both slidably connected to the lifting frame, a wear-resistant part is provided between the clip frame and the track frame, and the wear-resistant part is in contact with the side wall of the track frame; a second spring is connected between the two clip frames; a locking tooth is provided on the outer wall of the top of the track frame along the height direction of the track frame; when the second spring is in a normal state, the two clip frames are relatively close to each other and the inner wall of the clip frame is locked in the locking tooth; a control unit is provided between the two clip frames, and the distance between the two clip frames is controlled by the control unit.
[0014] Furthermore, the control unit includes an electromagnet, a first microswitch, and a second microswitch. The electromagnet is fixedly connected to the top of the lifting frame through an additional plate, and the push rod end at the bottom end of the electromagnet is connected to a conical part; guide rollers are provided on the opposite sides of the two snap frames, and the two guide rollers are located below the conical part; when the conical part moves downward, the bottom end of the conical part is inserted between the two guide rollers and causes the two snap frames to move relatively away from each other on the lifting frame; the electromagnet is electrically connected to the first microswitch and the second microswitch, the first microswitch is fixedly connected to the side wall of the lifting frame and monitors the position status of the snap frame; the second microswitch is fixedly connected to the bottom end of the lifting frame; when the movable frame moves upward, the top end of the movable frame contacts the contact piece of the second microswitch.
[0015] Furthermore, the support arm assembly includes a positioning plate and a support arm frame. The positioning plate is fixedly connected to the front end of the movable frame. Two support arm frames are symmetrically arranged on the positioning plate. The support arm frames are arranged in a horizontal L-shape. The top of the support arm frame is connected to the pins on both sides of the front end of the positioning plate, and the outer side of the other end of the support arm frame is provided with a roller sleeve; the front end of the positioning plate is fixedly connected to a back plate, and the back plate is located above the roller sleeve.
[0016] Furthermore, the angle adjustment mechanism includes a support beam and an electric push rod. There are two support beams and the two support beams are symmetrically arranged on both sides of the width direction of the fixed shell. The bottom end of the support beam is fixedly connected to the bottom frame, and the top end of the support beam is connected to the pin shaft of the side wall of the fixed shell; one end of the electric push rod extends into the fixed shell and is connected to the pin shaft at the bottom end of the fixed frame, and the other end of the electric push rod is connected to the pin shaft at the rear end of the bottom frame.
[0017] Compared with the prior art, the advantages and positive effects of this utility model are:
[0018] When the present invention is used, people only need to sit on the seat assembly, and then place the armpits on both sides on the arm support assembly, and finally, the traction assembly drives the arm support assembly to move longitudinally to perform longitudinal stretching operations on both sides of the human body's thorax, so that the human waist can produce a traction and stretching effect under the action of its own gravity; and, while the arm support assembly supports both sides of the human body's thorax, people can also drive the rocking assembly to drive the seat assembly to rotate back and forth, which can drive the human body's buttocks and the following limbs to achieve a reciprocating swing effect relative to the waist position, so that people can achieve a waist bending and stretching effect such as reciprocating twisting of the waist, effectively improving the traction effect of the lumbar traction equipment, and has excellent market promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0020] Figure 1 This is a schematic diagram of the front structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the back structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the utility model after removing the seat plate;
[0023] Figure 4 It is a front view of the connection structure between the bottom frame and the movable mechanism;
[0024] Figure 5 This is a back view of the connection structure between the bottom frame and the movable mechanism;
[0025] Figure 6 The internal structure diagram of the activity mechanism;
[0026] Figure 7 is a structural diagram of the swing assembly;
[0027] Figure 8 It is a structural diagram of the rotating disk;
[0028] Figure 9 This is a diagram of the connection structure between the traction component and the safety component;
[0029] Figure 10 is a structural diagram of the traction component;
[0030] Figure 11 Schematic diagram of the connection structure of the safety components;
[0031] Figure 12 A schematic diagram of the safety component structure. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included in the scope of protection of the present invention.
[0033] like Figures 1 to 12 As shown, this embodiment discloses a rocking traction chair, comprising a seat assembly 2 and a bottom frame 1. The upper end of the bottom frame 1 is connected to a movable mechanism and is connected to the seat assembly 2 through the movable mechanism.
[0034] The movable mechanism includes a fixed shell 5, a fixed frame 6 is fixedly connected to the fixed shell 5, the lower part of the fixed frame 6 is connected to a swing component 7 and is connected to the seat component 5 through the swing component 7, the upper part of the fixed frame 6 is connected to a traction component 8 and is connected to the support arm component 4 arranged above the seat component 5 through the traction component 8; the bottom end of the movable mechanism is provided with an angle adjustment mechanism 3 and is connected to the bottom frame 1 through the angle adjustment mechanism 3.
[0035] The fixed housing 5 is in the shape of a rectangular column, and the fixed frame 6 is arranged in a T-shape and is fixedly connected to the fixed housing 5;
[0036] The rocking assembly 7 includes a rotating unit and a power unit. The front end of the rotating unit is connected to the seat assembly 2, and the rear end of the rotating unit is connected to the front end end wall of the bottom of the fixed frame 6. The power unit is arranged on one side of the rotating unit, and the bottom end of the power unit is connected to the bottom end wall inside the fixed shell 5, and the upper end of the power unit is connected to the rotating unit.
[0037] The rotating unit includes a support plate 701 and a rotating plate 702. The support plate 701 is fixedly connected to the front end of the bottom of the fixed frame 6. The center position of the support plate 701 is rotatably connected to the center position of the rotating plate 702 through a bearing member 7011. The rear end of the rotating plate 702 is provided with a plurality of bull's eye ball bearings 7012 along the circumferential direction of the rotating plate 702 and contacts the front end surface of the support plate 701 through the bull's eye ball bearings 7012. The front end of the rotating plate 702 passes through the fixed shell 5 and is fixedly connected to the seat assembly 2; one side of the rotating plate 702 is fixedly connected to a power rod 703 and is connected to the power unit through the power rod 703.
[0038] The power unit includes a first power motor 706, a first power screw rod 705, and a first nut member 704. The bottom end of the first power motor 706 is provided with a first connecting ear 707 and is pin-connected to the second connecting ear 708 at the bottom end of the fixed shell 5 through the first connecting ear 707. The top of the first power motor 706 is transmission-connected to the first power screw rod 705. The outer side of the first power screw rod 705 is provided with a first nut member 704 and the first nut member 704 is threadedly connected to the first power screw rod 705. A positioning shaft is provided on one side of the first nut member 704 and is pin-connected to the power rod 703 arranged on one side of the rotating disk 702 through the positioning shaft; the first power screw rod 705 is fixedly provided with a first dividing gear 709 and is connected to the first angle sensor 7010 arranged on one side of the first power motor 706 through the first dividing gear 709.
[0039] The seat assembly 2 includes a seat frame 201 and a seat plate 202. The seat frame 201 is in a horizontal Z-shape. The rear end of the seat frame 201 is fixedly connected to the front end of the rotating disk 702, and the outer side of the front end of the seat frame 201 is fixedly connected to the seat plate 202.
[0040] When the seat is rocking, it is only necessary to make the first power motor drive the rotating disk to rotate relative to the supporting disk under the action of the screw nut, and make the front end of the rotating disk drive the seat frame and the seat plate to rotate, so that the buttocks and lower limbs of the person sitting on the seat plate can be made to swing back and forth; at the same time, the reciprocating rotation angle of the seat assembly can be limited by the connection structure of the first dividing gear and the first angle sensor, thereby improving its convenience in use.
[0041] The traction assembly 8 includes a track frame 801, a movable frame 802, a second power motor 803, a second power screw rod 805, and a second nut member 806. The track frame 801 is longitudinally arranged and fixedly connected to the top of the fixed frame body 6. The track frame 801 is a vertical track structure with two symmetrically arranged vertical rails. The movable frame 802 is slidably connected to the track frame 801 and the movable frame 802 can slide along the length direction of the track frame 801. The front end of the movable frame 802 passes through the fixed shell 5 and is fixedly connected to the support arm assembly 4; the second power motor 803 is connected to the bottom of the top of the fixed frame body 6, and the top of the second power motor 803 is connected to the second power screw rod The bottom end of 805 is transmittedly connected, and the top of the second power screw rod 805 passes through the top of the fixed frame body 6 and extends between the two vertical track structures of the track frame 801. The length direction of the second power screw rod 805 is consistent with the length direction of the track frame 801. A second nut member 806 is threadedly connected to the second power screw rod 805, and the second nut member 806 is located in the middle of the track frame 801 and the second nut member 806 is fixedly connected to the movable frame 802; a second indexing gear is fixedly sleeved on the second power screw rod 805 and is connected to the second angle sensor 804 arranged on one side of the second power motor 803 through the second indexing gear.
[0042] The support arm assembly 4 includes a positioning plate 402 and a support arm frame 403. The positioning plate 402 is fixedly connected to the front end of the movable frame 802. Two support arm frames 403 are symmetrically arranged on the positioning plate 402. The support arm frames 403 are arranged in a horizontal L-shape. The top of the support arm frame 403 is connected to the pins on both sides of the front end of the positioning plate 402. The outer side of the other end of the support arm frame 403 is provided with a roller sleeve 404; the front end of the positioning plate 402 is fixedly connected to the back plate 401, and the back plate 401 is located above the roller sleeve 404.
[0043] When the upper part of the human body is pulled, the armpits on both sides of the human body are first placed on the two roller sleeves, and then the second power motor drives the movable frame to move longitudinally relative to the track frame under the action of the screw nut. The front end of the movable frame drives the positioning plate and the support arm frame to move longitudinally, thereby achieving the pulling effect on the upper part of the human body. Under the action of the gravity of the human body, it can play a reciprocating stretching and pulling effect on the waist position; similarly, through the connection structure of the second indexing gear and the second angle sensor, the reciprocating movement distance of the movable frame and the support arm assembly can be limited.
[0044] The top of the track frame 801 is provided with a safety component 9; the safety component 9 includes a lifting frame 901, the lifting frame 901 is sleeved on the outside of the track frame 801 and the lifting frame 901 can slide along the length direction of the track frame 801, and a first spring 902 is connected between the two ends of the lifting frame 901 and the top of the fixed frame 6, and two snap frames 903 are symmetrically provided in the lifting frame 901. The two snap frames 903 are both slidably connected to the lifting frame 901 and can achieve relative approach or relative distance movements. The two snap frames 903 are both rectangular ring-shaped and are respectively sleeved on the outside of the two vertical track structures. The two sides of the two snap frames 903 extend out of the outside of the lifting frame 901 and pass through A second spring 908 arranged between the two is connected; a wear-resistant part 906 is arranged between the snap frame 903 and the track frame 801, and the wear-resistant part 906 is fixedly connected to the inner wall of the lifting frame 901 and the wear-resistant part 906 is in contact with the side wall of the track frame 801; a locking tooth 8011 is arranged on the outer wall of the top end of the track frame 801 along the height direction of the track frame 801; when the second spring 908 is in a normal state, the two snap frames 903 are relatively close to each other and the inner wall of the snap frame 903 is locked in the locking tooth 8011; a control unit is provided between the two snap frames 903 and the distance between the two snap frames 903 is controlled by the control unit.
[0045] The control unit includes an electromagnet 909, a first micro switch 906, and a second micro switch 907. The electromagnet 909 is fixedly connected to the top of the lifting frame 901 through an additional plate 904. The push rod end of the bottom end of the electromagnet 909 is connected to a conical member 9010. The two buckle frames 903 are provided with guide rollers 905 on opposite sides. The two guide rollers 905 are located below the conical member 9010. When the conical member 9010 moves downward, the bottom end of the conical member 9010 is inserted between the two guide rollers 905. The two snap frames 903 are moved away from each other on the lifting frame 901; the electromagnet 909 is electrically connected to the first microswitch 906 and the second microswitch 907 through the controller. The first microswitch 906 is fixedly connected to the side wall of the lifting frame 901 and monitors the position status of the snap frames 903; the second microswitch 907 is fixedly connected to the bottom end of the lifting frame 901; when the movable frame 802 moves upward, the top end of the movable frame 802 contacts the contact piece of the second microswitch 907.
[0046] When the first spring is in a normal state, the safety component abuts against the top of the movable frame under the elastic force of the first spring, and the second microswitch provided at the bottom of the movable frame contacts the top of the movable frame; when the traction component performs an upward pulling and traction action, the movable frame pushes the lifting frame to rise. During the pushing process, the top of the movable frame maintains contact with the second microswitch. At this time, the controller energizes the electromagnet, and the conical part at the bottom of the electromagnet moves downward and is inserted between the two guide rollers. The two snap frames move away from each other and disengage from the engaging teeth of the side wall of the track frame, and the movable frame and the safety component perform a smooth upward movement.
[0047] When the lift reaches the limit of the pulling height that people can bear, the second power motor rotates in the opposite direction and the movable frame moves downward. At this time, due to the friction between the wear-resistant parts in the safety component and the track frame, the lifting frame descends slowly, so that the top of the movable frame does not contact the second microswitch. At this time, the control board makes the electromagnet in the power-off state, and the conical part at the bottom end of the electromagnet retracts. The two snap frames are relatively close and the inner wall of the snap frame is engaged with the engaging teeth of the side wall of the track frame, thereby achieving the positioning of the lifting frame and the track frame; at this time, the bottom end height of the lifting frame is the highest height when the movable frame performs reciprocating movement. Even if the second angle sensor fails, it will not cause the movable frame to move upward to exceed the traction limit of people, thereby ensuring the safety of the traction operation; at the same time, when the first microswitch detects that the two snap frames are in the engaged state, even if the movable frame touches the first microswitch when it rises, the controller will not energize the electromagnet again, thereby ensuring that the position of the lifting frame remains unchanged during the traction action;
[0048] After the traction operation is completed, the controller energizes the electromagnet again, and the two snap frames disengage from the engaged state of the engaging teeth. Under the action of the first spring, the lifting frame slides downward along the track frame and abuts against the top of the movable frame again, facilitating the maximum height limit operation during the next traction operation.
[0049] The angle adjustment mechanism 3 includes a support beam 301 and an electric push rod 302. There are two support beams 301, and the two support beams 301 are symmetrically arranged on both sides of the width direction of the fixed shell 5. The bottom end of the support beam 301 is fixedly connected to the bottom frame 1, and the top end of the support beam 301 is connected to the side wall pin of the fixed shell 5; one end of the electric push rod 302 extends into the fixed shell 5 and is connected to the bottom end pin of the fixed frame 6, and the other end of the electric push rod 302 is connected to the rear end pin of the bottom frame 1.
[0050] The movable mechanism can be placed in a vertical state or a horizontally tilted state by the pushing and pulling action of the electric push rod, thereby changing the position and angle of the seat assembly, and ultimately allowing people sitting on the seat assembly to adjust their sitting and lying positions. People can choose according to their needs, which improves the comfort of people when performing rehabilitation movements and further improves the use effect of the utility model.
[0051] When the present invention is used, people only need to sit on the seat assembly, and then place the armpits on both sides on the arm support assembly, and finally, the traction assembly drives the arm support assembly to move longitudinally to perform longitudinal stretching operations on both sides of the human body's thorax, so that the human waist can produce a traction and stretching effect under the action of its own gravity; and, while the arm support assembly supports both sides of the human body's thorax, people can also drive the rocking assembly to drive the seat assembly to rotate back and forth, which can drive the human body's buttocks and the following limbs to achieve a reciprocating swing effect relative to the waist position, so that people can achieve a waist bending and stretching effect such as reciprocating twisting of the waist, effectively improving the traction effect of the lumbar traction equipment, and has excellent market promotion prospects.
Claims
1. A rocking traction chair, comprising a seat assembly, characterized in that: The rocking traction chair also includes a bottom frame, the upper end of the bottom frame is connected to a movable mechanism and is connected to the seat assembly through the movable mechanism; the movable mechanism includes a fixed frame, the lower part of the fixed frame is connected to the rocking assembly and is connected to the seat assembly through the rocking assembly, the upper part of the fixed frame is connected to the traction assembly and is connected to the support arm assembly arranged above the seat assembly through the traction assembly; the bottom end of the movable mechanism is provided with an angle adjustment mechanism and is connected to the bottom frame through the angle adjustment mechanism.
2. The rocking traction chair according to claim 1, wherein: The fixed frame is arranged in a T-shape and is fixedly connected to a fixed shell in a rectangular column shape; the rocking assembly includes a rotating unit and a power unit, the front end of the rotating unit is connected to the seat assembly, and the rear end of the rotating unit is connected to the front end end wall of the bottom of the fixed frame; the power unit is arranged on one side of the rotating unit, the bottom end of the power unit is connected to the bottom end wall inside the fixed shell, and the upper end of the power unit is connected to the rotating unit.
3. The rocking traction chair according to claim 2, characterized in that: The rotating unit includes a supporting plate and a rotating plate. The supporting plate is fixedly connected to the front end of the bottom of the fixed frame. The center position of the supporting plate is rotatably connected to the center position of the rotating plate through a bearing. A plurality of bull's eye ball bearings are provided at the rear end of the rotating plate along the circumferential direction of the rotating plate and contact the front end surface of the supporting plate through the bull's eye ball bearings. The front end of the rotating plate passes through the fixed shell and is fixedly connected to the seat assembly; a power rod is fixedly connected to one side of the rotating plate and is connected to the power unit through the power rod.
4. The rocking traction chair according to claim 3, wherein: The power unit includes a first power motor, a first power screw rod, and a first nut member. The bottom end of the first power motor is provided with a first connecting ear and is connected to the second connecting ear pin shaft at the bottom end of the fixed shell through the first connecting ear. The top of the first power motor is transmission-connected to the first power screw rod. The outer side of the first power screw rod is provided with a first nut member and the first nut member is threadedly connected to the first power screw rod. A positioning shaft is provided on one side of the first nut member and is connected to the power rod pin shaft provided on one side of the rotating disk through the positioning shaft; the first power screw rod is fixedly provided with a first indexing gear and is connected to the first angle sensor provided on one side of the first power motor through the first indexing gear.
5. The rocking traction chair according to claim 4, characterized in that: The seat assembly includes a seat frame and a seat plate. The seat frame is in a transverse Z-shape. The rear end of the seat frame is fixedly connected to the front end of the rotating disk, and the outer side of the front end of the seat frame is fixedly connected to the seat plate.
6. The rocking traction chair according to claim 2, characterized in that: The traction assembly includes a track frame, a movable frame, a second power motor, a second power screw rod, and a second nut member, the track frame is longitudinally arranged and fixedly connected to the top of the fixed frame body, the track frame is slidably connected to the movable frame and the movable frame can slide along the length direction of the track frame, and the front end of the movable frame passes through the fixed shell and is fixedly connected to the support arm assembly; the second power motor is connected to the bottom of the top of the fixed frame body, the top of the second power motor is transmission-connected to the bottom end of the second power screw rod, the top of the second power screw rod passes through the top of the fixed frame body and extends between the track frames, the length direction of the second power screw rod is consistent with the length direction of the track frame, the second power screw rod is threadedly connected to the second nut member, the second nut member is located in the middle of the track frame and the second nut member is fixedly connected to the movable frame; the second power screw rod is fixedly sleeved with a second indexing gear and is connected to a second angle sensor arranged on one side of the second power motor through the second indexing gear.
7. The rocking traction chair according to claim 6, characterized in that: A safety component is provided at the top of the track frame; the safety component includes a lifting frame, which is sleeved on the outside of the track frame and can slide along the length direction of the track frame, a first spring is connected between the two ends of the lifting frame and the top of the fixed frame, two clip frames are symmetrically provided in the lifting frame, both clip frames are slidably connected to the lifting frame, a wear-resistant part is provided between the clip frame and the track frame, and the wear-resistant part contacts the side wall of the track frame; a second spring is connected between the two clip frames; a locking tooth is provided on the outer wall of the top of the track frame along the height direction of the track frame; when the second spring is in a normal state, the two clip frames are relatively close to each other and the inner wall of the clip frame is locked in the locking tooth; a control unit is provided between the two clip frames, and the distance between the two clip frames is controlled by the control unit.
8. The rocking traction chair according to claim 7, wherein: The control unit includes an electromagnet, a first microswitch, and a second microswitch. The electromagnet is fixedly connected to the top of the lifting frame through an additional plate, and the push rod end at the bottom end of the electromagnet is connected to a conical part; guide rollers are provided on opposite sides of the two snap frames, and the two guide rollers are located below the conical part; when the conical part moves downward, the bottom end of the conical part is inserted between the two guide rollers and causes the two snap frames to move relatively away from each other on the lifting frame; the electromagnet is electrically connected to the first microswitch and the second microswitch, the first microswitch is fixedly connected to the side wall of the lifting frame and monitors the position status of the snap frame; the second microswitch is fixedly connected to the bottom end of the lifting frame; when the movable frame moves upward, the top end of the movable frame contacts the contact piece of the second microswitch.
9. The rocking traction chair according to claim 8, characterized in that: The support arm assembly includes a positioning plate and a support arm frame. The positioning plate is fixedly connected to the front end of the movable frame. Two support arm frames are symmetrically arranged on the positioning plate. The support arm frames are arranged in a horizontal L-shape. The top of the support arm frame is connected to the pins on both sides of the front end of the positioning plate, and a roller sleeve is provided on the outer side of the other end of the support arm frame. The front end of the positioning plate is fixedly connected to a back plate, and the back plate is located above the roller sleeve.
10. The rocking traction chair according to claim 2, characterized in that: The angle adjustment mechanism includes a support beam and an electric push rod. There are two support beams and the two support beams are symmetrically arranged on both sides of the width direction of the fixed shell. The bottom end of the support beam is fixedly connected to the bottom frame, and the top end of the support beam is connected to the pin shaft of the side wall of the fixed shell; one end of the electric push rod extends into the fixed shell and is connected to the pin shaft at the bottom end of the fixed frame, and the other end of the electric push rod is connected to the pin shaft at the rear end of the bottom frame.
Citation Information
Patent Citations
Lumbar traction treatment and maintenance chair
CN211633786U