A precise waist massage chair and waist massage structure

By designing a lumbar spine and a rotating sleeve that can move up and down on the massage chair, combined with a square telescopic block and a curved slide, the height and angle adjustment of the lumbar support is achieved, solving the problem that existing massage chairs cannot adjust adaptively, and meeting the lumbar support needs of people of different heights.

CN119302832BActive Publication Date: 2025-03-14WENZHOU ZHIRONG HEALTH TECH CO LTD
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Patent Information

Application Number
CN202411833700.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-14
Estimated Expiration
2044-12-13

AI Technical Summary

Technical Problem

The existing massage chair lumbar support position is fixed and cannot be adjusted adaptively, making it difficult to meet the needs of people of different heights for lumbar support at the same time.

Method used

A precise lumbar massage chair is designed, using a lumbar spine that can move up and down and a rotating sleeve. Through the cooperation of square telescopic blocks and arc-shaped sliders, the height and angle of the lumbar support are adjusted to adapt to different heights and lumbar tilt angles.

Benefits of technology

The adaptive adjustment of the waist support plate is realized, which can better fit the user's waist, meet the waist support needs of people of different heights, and is easy to use.

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Abstract

The present invention relates to the technical field of waist massage, specifically to a precise waist protection massage chair and a waist massage structure, comprising a positioning plate, a waist spine plate which can move up and down is installed on the surface of the positioning plate, a rotating hole is provided on the surface of the waist spine plate, a rotating sleeve is rotatably connected to the inner wall of the rotating hole, a telescopic groove is provided at one end of the rotating sleeve, a telescopic groove of the rotating sleeve is connected to a telescopic block which is retractable, a waist support plate is rotatably connected to one end of the square telescopic block, an arc-shaped slider is fixedly connected to the surface of the waist support plate, and an arc-shaped slider is provided on the surface of the square telescopic block. The purpose of the present invention is to solve the problem that the waist support position of the existing massage chair is fixed, cannot be adaptively adjusted, and is difficult to simultaneously meet the waist support needs of people of different heights.
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Description

Technical Field

[0001] The invention relates to the technical field of waist massage, in particular to a precise waist protection massage chair and a waist massage structure. Background Art

[0002] The lumbar massage chair can knead, press, and massage the lumbar muscles to help relax the lumbar muscles. It is very useful for many people in modern life who have long periods of sitting to work or sitting still for a long time, which causes the lumbar muscles to be in a tense state for a long time. The lumbar massage chair relies on the massage movement to knead and relieve muscle tension, press to stimulate the meridians, and massage to promote blood circulation. It can deeply relax the lumbar muscles and effectively relieve the lumbar soreness and discomfort caused by sitting for a long time, fatigue or lumbar problems. It can not only prevent the occurrence and deterioration of lumbar diseases, but also help users relieve stress and relax their body and mind psychologically, improve the overall comfort and quality of life, and protect people's lumbar health.

[0003] For the existing users of massage chairs, from the perspective of the basic structure of human anatomy, the position of the lumbar spine is roughly the same, located in the lower part of the spine, between the thoracic vertebrae and the sacral vertebrae. It is connected to the thoracic vertebrae above and the sacrum below, and is an important supporting structure of the human trunk. However, different people have different heights, so when different people sit on a massage chair, the relative position of their lumbar spine and the lumbar support of the massage chair backrest will be different. For tall people, the lumbar support is likely to hit near the sacrum and cannot provide effective support for the lumbar spine. For short people, the lumbar support will hit the middle of the back or even higher, and will not touch the waist at all. The existing lumbar support of massage chairs is fixed in position and cannot be adjusted, making it difficult to simultaneously meet the needs of people of different heights for lumbar support. Summary of the invention

[0004] The purpose of the present invention is to provide an ergonomically adaptive massage chair and a method of use, so as to solve the problem that the lumbar support of existing massage chairs is fixed in position and cannot be adaptively adjusted, making it difficult to simultaneously meet the lumbar support needs of people of different heights.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A precision waist protection massage chair comprises a positioning plate, a waist spine plate movable up and down is mounted on the surface of the positioning plate, a rotating hole is provided on the surface of the waist spine plate, a rotating sleeve is swingably connected to the inner wall of the rotating hole, a telescopic groove is provided at one end of the rotating sleeve, a telescopic square telescopic block is connected in the telescopic groove of the rotating sleeve, and a waist support plate is rotatably connected to one end of the square telescopic block.

[0007] Preferably, an arc-shaped sliding block is fixedly connected to the surface of the waist support plate, and an arc-shaped sliding groove for the arc-shaped sliding block to slide is provided on the surface of the square telescopic block.

[0008] Preferably, arc-shaped guide blocks are fixedly connected to both sides of the rotating sleeve, the wall surface of the rotating hole is cooperated with to form an arc-shaped guide groove for the arc-shaped guide block to slide, and the bottom wall of the rotating hole is cooperated with to form an arc-shaped avoidance surface for the rotating sleeve to rotate and avoid.

[0009] Preferably, a lumbar support cushion is provided on the surface of the lumbar support plate, and an arc-shaped elastic plate is fixedly connected to the top end of the lumbar support plate.

[0010] Preferably, a lifting plate that can move up and down is installed on the surface of the waist and spine plate, and the lifting plate is located below the rotating sleeve.

[0011] Preferably, the lower end of the lifting plate is rotatably connected to a push plate, a third motor is installed at the lower end of the lifting plate, and an output end of the third motor is fixedly connected to the push plate.

[0012] Preferably, the surface of the waist and spine plate is rotatably connected to two symmetrically vertically arranged second threaded rods, and the top surface of the lifting plate is fixedly connected to two symmetrically vertically arranged threaded sleeve rods. The two second threaded rods are respectively threadedly connected to the two threaded sleeve rods, and the two threaded sleeve rods have space for relative movement of the second threaded rods.

[0013] A waist massage structure of a precision waist protection massage chair, wherein a massage plate which can move up and down is installed on the inner side of the waist support plate.

[0014] Preferably, a fixing block is fixedly installed on the surface of the lumbar support plate, and a third threaded rod is rotatably connected to the surface of the fixing block, and an L-shaped sleeve rod is threadedly sleeved on the surface of the third threaded rod, and one end of the L-shaped sleeve rod is fixedly connected to the massage plate, and a positioning groove is provided on the surface of the lumbar support plate for the L-shaped sleeve rod to move up and down.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting the lumbar spine board, rotating sleeve and square telescopic block, the lumbar support board can be conveniently made to fit the user's waist. The design that the lumbar spine board can be moved up and down allows the user to adjust the height of the lumbar spine board according to his or her body characteristics to adapt it to his or her waist. By rotating the rotating sleeve in the rotating hole, the lumbar support board can adjust the angle. When the user's waist leans forward or backward slightly, it can better fit the different inclination angles of the waist. It is easy to use and solves the problem that the lumbar support of the existing massage chair is fixed in position and cannot be adjusted adaptively, and it is difficult to simultaneously meet the needs of people of different heights for lumbar support;

[0017] 2. By setting the push plate, the push plate can be rotated to lean against the surface of the lumbar support plate to support the lumbar support plate and prevent the lumbar support plate from rotating. For people who like a harder lumbar support, the support hardness of the lumbar support plate can be easily adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the connection between the waist and ridge plate and the rotating sleeve of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the waist and spine board of the present invention;

[0021] Figure 4 It is a schematic diagram of the vertical section structure of the waist and ridge board and the positioning board of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the lifting plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the rotating sleeve and the square telescopic block in vertical section of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the rotating sleeve of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the waist support plate of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of a vertical section of a lumbar support plate and an L-shaped sleeve rod of the present invention.

[0027] In the figure: 1. lumbar spine plate; 2. rotating sleeve; 3. first motor; 4. first threaded rod; 5. square telescopic block; 6. arc-shaped slide groove; 7. arc-shaped slider; 8. lumbar support plate; 9. arc-shaped elastic plate; 10. lumbar support cushion; 11. arc-shaped guide block; 12. arc-shaped guide groove; 13. arc-shaped avoidance surface; 14. second motor; 15. second threaded rod; 16. threaded sleeve rod; 17. lifting plate; 18. third motor; 19. push plate; 20. positioning plate; 21. fourth motor; 22. gear; 23. rack; 24. massage plate; 25. L-shaped sleeve rod; 26. third threaded rod; 27. fixed block; 28. fifth motor; 29. ​​lifting hole; 30. rotating hole; 31. positioning slide groove; 32. telescopic groove. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 9 , the present invention provides a technical solution.

[0030] Example 1

[0031] A precise waist protection massage chair comprises a positioning plate 20, which is connected to a back cushion of the massage chair. A waist spine plate 1 which can move up and down is installed on the surface of the positioning plate 20. A rotating hole 30 is provided on the surface of the waist spine plate 1. A rotating sleeve 2 is swingably connected to the inner wall of the rotating hole 30. A first torsion spring is installed at the rotating shaft rotating between the inner wall of the rotating hole 30 and the rotating sleeve 2, so that the rotating sleeve 2 is elastically supported when rotating. A telescopic groove 32 is provided at one end of the rotating sleeve 2. A telescopic square telescopic block 5 is connected in the telescopic groove 32 of the rotating sleeve 2. A waist support plate 8 is rotatably connected to one end of the square telescopic block 5. A second torsion spring is installed at the rotating shaft rotating between the square telescopic block 5 and the waist support plate 8, so that the waist support plate 8 is elastically supported when rotating.

[0032] See also Figure 6 and Figure 8 The surface of the lumbar support plate 8 is fixedly connected with an arc-shaped slider 7, and the surface of the square telescopic block 5 is provided with an arc-shaped slide groove 6 for the arc-shaped slider 7 to slide. By providing the arc-shaped slider 7, the arc-shaped slider 7 cooperates with the arc-shaped slide groove 6 to increase the connection stability between the square telescopic block 5 and the lumbar support plate 8. When the waist is subjected to pressure or external force impact, this structure can effectively prevent the lumbar support plate 8 and the square telescopic block 5 from loosening or dislocation. The interaction between the arc block and the arc groove can disperse the pressure and make the force on the connection part more uniform.

[0033] See also Figure 3-4 and Figure 7 , arc-shaped guide blocks 11 are fixedly connected to both sides of the rotating sleeve 2, and the wall surface of the rotating hole 30 is cooperated with to form an arc-shaped guide groove 12 for the sliding of the arc-shaped guide block 11, and the bottom wall of the rotating hole 30 is cooperated with to form an arc-shaped avoidance surface 13 for the rotating sleeve 2 to rotate and avoid. By setting the arc-shaped guide groove 12, the structure of the arc-shaped guide block 11 and the arc-shaped guide groove 12 can limit the rotation angle of the rotating sleeve 2 relative to the waist ridge plate 1, thereby preventing the rotating sleeve 2 from rotating downward and losing stability and failing to function normally.

[0034] Furthermore, a lumbar support pad 10 is provided on the surface of the lumbar support plate 8, and an arc-shaped elastic plate 9 is fixedly connected to the top of the lumbar support plate 8. When the lumbar support plate 8 rotates, the contact edge position of the waist and the lumbar support plate 8 will change. The arc-shaped elastic plate 9 can provide additional support and buffering at the edge position. By setting the arc-shaped elastic plate 9, during the rotation of the lumbar support plate 8 and the square telescopic block 5, the arc-shaped elastic plate 9 will gradually deform with the change of the angle. The arc-shaped elastic plate 9 can play a role of transition and buffering, making the rotation of the lumbar support plate 8 smoother, which is conducive to preventing the user from having an abrupt feeling when the lumbar support plate 8 rotates.

[0035] A lifting plate 17 that can move up and down is installed on the surface of the lumbar spine plate 1. The lifting plate 17 is located below the rotating sleeve 2. By moving the lifting plate 17 upward and lifting the rotating sleeve 2 to rotate upward, the upward movement distance of the lifting plate 17 is converted into the rotation angle of the rotating sleeve 2, so that very precise angle adjustment can be achieved. Since the upward movement distance can be precisely controlled, the rotation angle of the rotating sleeve 2 can be precisely adjusted according to a pre-designed ratio, thereby improving the performance of the equipment and the accuracy of operation. At the same time, since there is a fixed conversion relationship between the upward movement distance of the lifting plate 17 and the rotation angle of the rotating sleeve 2, as long as the mechanical structure is stable, this adjustment method has good repeatability. Every time the lifting plate 17 moves the same distance, the rotating sleeve 2 will rotate to the same angle. Usually, when a person uses it, the angle of the adjusted lumbar support plate 8 does not change much because the position of his or her waist does not change much. This is very beneficial for the same person to easily adjust it to a suitable angle for his or her waist when using it.

[0036] Furthermore, the lower end of the lifting plate 17 is rotatably connected to a push plate 19, and a third motor 18 is installed at the lower end of the lifting plate 17. The output end of the third motor 18 is fixedly connected to the push plate 19. By starting the third motor 18 to drive the push plate 19 to rotate, it is beneficial to rotate the push plate 19 to lean against the surface of the lumbar support plate 8 as needed to prevent the lumbar support plate 8 from rotating. This is beneficial for the user to make the support of the lumbar support plate 8 harder as needed, and can provide stronger support for the lumbar support, which is convenient for people who like a harder lumbar support to use, making their waists feel more "solid".

[0037] For details on the up and down movement of the lumbar spine plate 1, please refer to Figure 4The ridge plate 1 movably penetrates the surface of the positioning plate 20, and a lifting hole 29 is opened on the surface of the ridge plate 1. The groove wall of the lifting hole 29 is fixedly connected with a vertically arranged rack 23. The surface of the positioning plate 20 is rotatably connected with a gear 22 meshing with the rack 23. A fourth motor 21 is installed on the surface of the positioning plate 20. The output end of the fourth motor 21 is coaxially fixedly connected with the gear 22. By starting the fourth motor 21, the gear 22 is driven to rotate, and the gear 22 is meshed with the rack 23, so that the rotating gear 22 will drive the rack 23 to move up and down, and the up and down movement of the rack 23 drives the ridge plate 1 to move up and down. By setting the gear 22 and the rack 23, the force direction between the gear 22 and the rack 23 is mainly along the axial direction of the rack 23. During the up and down movement, this force mode is relatively stable.

[0038] The specific expansion and contraction of the square expansion block 5 is shown in FIG. Figure 6 The surface of the rotating sleeve 2 is rotatably connected with a first threaded rod 4, and the square telescopic block 5 is threadedly connected to the first threaded rod 4. A first motor 3 is installed on the surface of the rotating sleeve 2, and the output end of the first motor 3 is coaxially fixedly connected to the first threaded rod 4. By starting the first motor 3, the first threaded rod 4 is driven to rotate, and the first threaded rod 4 and the square telescopic block 5 are threadedly connected, so that the rotating first threaded rod 4 drives the square telescopic block 5 to telescope along the track of the telescopic groove 32. The square telescopic block 5 is driven to telescope by setting the first threaded rod 4. During the rotation process, the first threaded rod 4 mainly bears axial tension or pressure, and its force direction is relatively stable. When the user leans on the lumbar support, the force exerted on the lumbar support plate 8 can be evenly transmitted to the threaded rod through the square telescopic block 5, and it is not easy to have structural deformation or damage caused by uneven force.

[0039] The specific steps of the lifting plate 17 moving up and down are shown in FIG. Figure 3 and Figure 5The surface of the waist and spine board 1 is rotatably connected to two symmetrically vertically arranged second threaded rods 15, and the top surface of the lifting plate 17 is fixedly connected to two symmetrically vertically arranged threaded sleeves 16, the two second threaded rods 15 are respectively threadedly connected to the two threaded sleeves 16, and the two threaded sleeves 16 have spaces for the second threaded rods 15 to move relative to each other, and two second motors 14 are fixedly installed on the surface of the waist and spine board 1, and the output ends of the two second motors 14 are respectively coaxially fixedly connected to the two second threaded rods 15, and the second threaded rods 15 are driven to rotate by starting the second motors 14, and the second threaded rods 15 and The threaded sleeve 16 is threadedly connected, and the rotating second threaded rod 15 drives the threaded sleeve 16 to move up and down along the surface of the second threaded rod 15. The up and down movement of the threaded sleeve 16 drives the lifting plate 17 to move up and down. By setting two second threaded rods 15 and the threaded sleeve 16, the moving direction of the lifting plate 17 can be better controlled. By synchronously adjusting the rotation direction and speed of the threads at both ends, it can be ensured that the lifting plate 17 moves up and down strictly in the vertical direction, and the pulling force or thrust on the lifting plate 17 can be more evenly distributed at both ends, thereby enhancing the stability of the lifting plate 17 during the movement.

[0040] The specific solution is as follows: by starting the fourth motor 21 to drive the gear 22 to rotate, the gear 22 rotates to drive the rack 23 to move up and down, the rack 23 moves to drive the lumbar spine board 1 to move up and down, and the lumbar spine board 1 moves up and down to drive the rotating sleeve 2, the square telescopic block 5, the lumbar support plate 8, and the lifting plate 17 to move up and down, so that the position of the lumbar support plate 8 can be adjusted. People of different heights have different waist positions. The waist position of taller people is relatively lower, and the waist position of shorter people is relatively higher. For tall people, it is necessary to move the lumbar support plate 8 relatively upward to prevent the lumbar support plate 8 from pressing against the sacrum and failing to provide effective support for the lumbar spine. For short people, it is necessary to move the lumbar support plate 8 relatively downward to prevent the lumbar support plate 8 from pressing against the middle of the back or even a higher position without touching the waist at all. By adjusting the position of the lumbar support plate 8, users of different heights can make the lumbar support plate 8 accurately fit their lumbar spine area.

[0041] By starting the first motor 3 to drive the first threaded rod 4 to rotate, the first threaded rod 4 rotates to drive the square telescopic block 5 to move along the track of the telescopic slot 32, and the square telescopic block 5 moves to drive the lumbar support plate 8 to move. The lumbar lordosis angle of each person will be different due to factors such as gender, age, and living habits. For people with a larger lumbar lordosis angle, the lumbar support plate 8 needs to be appropriately moved forward to provide sufficient support. For people with a smaller lumbar lordosis angle, the lumbar support plate 8 needs to be adjusted backward to avoid excessive lifting of the waist and causing discomfort.

[0042] The second motor 14 is started to drive the second threaded rod 15 to rotate, and the rotation of the second threaded rod 15 drives the threaded sleeve rod 16 to move up and down, and the threaded sleeve rod 16 moves up and down to drive the lifting plate 17 to move up and down. The lifting plate 17 will lift the rotating sleeve 2 in the process of moving up, so that the rotating sleeve 2 rotates upward, and the supporting angle of the rotating sleeve 2 and the square telescopic block 5 can be adjusted. Then, when the user's waist leans on the lumbar support plate 8, the lumbar support plate 8 and the square telescopic block 5 will also rotate adaptively. For people whose buttocks only sit on half of the seat cushion, the square telescopic block 5 and the lumbar support plate 8 can rotate adaptively to support the user's waist, and play a good supporting role when the user leans back.

[0043] By starting the third motor 18 to drive the push plate 19 to rotate, the push plate 19 can be rotated to lean against the surface of the lumbar support plate 8 to support the lumbar support plate 8 and prevent the lumbar support plate 8 from rotating. For people who like a harder lumbar support, the support hardness of the lumbar support plate 8 can be adjusted.

[0044] Example 2

[0045] A lumbar massage structure of a precision lumbar massage chair, a massage plate 24 that can move up and down is installed on the inner side of the lumbar support plate 8, the massage plate 24 is located in a closed space surrounded by the lumbar support plate 8 and the lumbar support cushion 10, and the massage head of the massage plate 24 can contact the lumbar support cushion 10. When a person leans on the lumbar support cushion 10, the massage plate 24 is started to massage his waist. By setting the massage plate 24 to move up and down, it is beneficial for the user to independently control the specific position of the massage plate 24 to massage the waist.

[0046] Specifically, the massage plate 24 moves up and down, and a fixed block 27 is fixedly installed on the surface of the lumbar support plate 8, and a vertically arranged third threaded rod 26 is rotatably connected to the surface of the fixed block 27, and a fifth motor 28 is installed on the surface of the fixed block 27, and the output end of the fifth motor 28 is coaxially fixedly connected to the third threaded rod 26, and an L-shaped sleeve rod 25 is threadedly sleeved on the surface of the third threaded rod 26, and one end of the L-shaped sleeve rod 25 is fixedly connected to the massage plate 24, and a positioning groove 31 is provided on the surface of the lumbar support plate 8 for the L-shaped sleeve rod 25 to move up and down. By starting the fifth motor 28, the third threaded rod 26 is driven to rotate, and the third threaded rod 26 is threadedly connected to the L-shaped sleeve rod 25, and the rotating third threaded rod 26 will drive the L-shaped sleeve rod 25 to move up and down along the track of the positioning groove 31, and the movement of the L-shaped sleeve rod 25 drives the massage plate 24 to move up and down.

[0047] Specifically, the fifth motor 28 is started to drive the third threaded rod 26 to rotate, and the rotation of the third threaded rod 26 drives the L-shaped sleeve rod 25 to move up and down along the track of the positioning slide groove 31, and the movement of the L-shaped sleeve rod 25 drives the massage plate 24 to move, and adjust the position of the massage plate 24 in the lumbar support plate 8 and the lumbar support cushion 10, so that the user can independently control the specific position of the massage plate 24 to massage the waist according to needs.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision waist protection massage chair, comprising a positioning plate (20), characterized in that: A waist ridge plate (1) that can move up and down is installed on the surface of the positioning plate (20), a rotating hole (30) is opened on the surface of the waist ridge plate (1), a rotating sleeve (2) is swingably connected to the inner wall of the rotating hole (30), a telescopic groove (32) is opened at one end of the rotating sleeve (2), a telescopic square telescopic block (5) is connected in the telescopic groove (32) of the rotating sleeve (2), and a waist support plate (8) is rotatably connected to one end of the square telescopic block (5); A lifting plate (17) that can move up and down is installed on the surface of the waist and spine plate (1), and the lifting plate (17) is located below the rotating sleeve (2); The lower end of the lifting plate (17) is rotatably connected to a push plate (19), a third motor (18) is mounted on the lower end of the lifting plate (17), and an output end of the third motor (18) is fixedly connected to the push plate (19); The surface of the waist and spine plate (1) is rotatably connected to two symmetrically vertically arranged second threaded rods (15), and the top surface of the lifting plate (17) is fixedly connected to two symmetrically vertically arranged threaded sleeve rods (16), the two second threaded rods (15) are respectively threadedly connected to the two threaded sleeve rods (16), and the two threaded sleeve rods (16) have space for the second threaded rods (15) to move relative to each other.

2. According to claim 1, a precise waist protection massage chair, characterized in that: The surface of the waist support plate (8) is fixedly connected with an arc-shaped sliding block (7), and the surface of the square telescopic block (5) is provided with an arc-shaped sliding groove (6) for the arc-shaped sliding block (7) to slide.

3. According to claim 1, a precise waist protection massage chair, characterized in that: Both sides of the rotating sleeve (2) are fixedly connected with arc-shaped guide blocks (11), the wall surface of the rotating hole (30) is provided with an arc-shaped guide groove (12) for the sliding of the arc-shaped guide block (11), and the bottom wall of the rotating hole (30) is provided with an arc-shaped avoidance surface (13) for the rotating sleeve (2) to avoid when rotating.

4. According to claim 1, a precise waist protection massage chair, characterized in that: A lumbar support cushion (10) is provided on the surface of the lumbar support plate (8), and an arc-shaped elastic plate (9) is fixedly connected to the top end of the lumbar support plate (8).

5. According to claim 1, a precise waist protection massage chair, characterized in that: A massage plate (24) that can move up and down is installed on the inner side of the waist support plate (8).

6. The precise waist protection massage chair according to claim 5, characterized in that: A fixing block (27) is fixedly mounted on the surface of the lumbar support plate (8); a third threaded rod (26) arranged vertically is rotatably connected to the surface of the fixing block (27); an L-shaped sleeve rod (25) is threadedly sleeved on the surface of the third threaded rod (26); one end of the L-shaped sleeve rod (25) is fixedly connected to the massage plate (24); and a positioning slide groove (31) is provided on the surface of the lumbar support plate (8) for the L-shaped sleeve rod (25) to move up and down.

Citation Information

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