Sitting posture adjusting chair capable of avoiding spinal curvature

Abstract

The invention discloses a sitting posture adjusting chair capable of avoiding spine bending, and belongs to the field of office furniture, the sitting posture adjusting chair capable of avoiding spine bending comprises a chair mounting plate, a sliding block is fixedly connected to the center position of the upper end of the chair mounting plate, a plurality of grooves are formed in any side of the sliding block, the grooves are transversely arranged, and the sliding block is fixedly connected with the sliding block. A seat cushion is arranged at the upper end of the seat mounting plate, a sliding rail groove is formed in the center of the lower end of the seat cushion, the sliding rail groove is in sliding connection with the sliding block, and a square groove is formed in the middle of the sliding rail groove and any side of the seat cushion in a penetrating mode. By arranging the triggering mechanism and the seat cushion adjusting mechanism, a worker can be reminded to keep a correct sitting posture all the time, the front-back distance of the seat cushion can be adjusted to adapt to workers of different body types, and therefore the working efficiency is improved, and pain and discomfort caused by poor sitting postures are reduced.

Description

Technical Field

[0001] The invention relates to the field of office furniture, in particular to a sitting posture adjustment chair for avoiding spinal curvature. Background Art

[0002] In life, seats play a very important role, not only affecting our comfort and health, but also our work and quality of life. With the popularity of remote work, workers need to operate computers for a long time, and poor sitting posture can lead to abnormal spinal curvature and affect concentration, thereby reducing work efficiency. Therefore, office seats are paying more and more attention to providing support and improving sitting posture to reduce health problems caused by long-term sitting.

[0003] There are many types of posture-adjustable chairs on the market. Some high-end posture-adjustable chairs integrate intelligent technology. Although the adjustable posture can solve various problems, this may also lead to increased costs. Most general posture-adjustable chairs have adjustable functions and are designed with a curved backrest that fits the waist to reduce pressure and discomfort on the waist. However, after working for a long time, the sitting posture will naturally change, and the effect of adjusting the sitting posture cannot be achieved. In addition, the fixed seat cushion is difficult to adapt to everyone's body shape. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the existing sitting posture adjustment chair still cannot achieve the effect of adjusting the sitting posture when the staff works for a long time, and the seat cushion has low flexibility and cannot adapt to the body shape of all people.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a sitting posture adjustment chair for avoiding spinal curvature, comprising a seat mounting plate, a slider is fixedly connected to the center position of the upper end of the seat mounting plate, a plurality of grooves are opened on any side of the slider, and the grooves are arranged horizontally, a seat cushion is arranged on the upper end of the seat mounting plate, a slide rail groove is opened at the center position of the lower end of the seat cushion, the slide rail groove is slidably connected with the slider, a square groove is penetrated in the middle of the slide rail groove and on any side of the seat cushion, a cylindrical groove is opened in the side of the square groove close to the seat cushion, and a seat cushion adjustment mechanism is installed in the square groove and the cylindrical groove;

[0006] Through the above technical solution, the seat mounting plate can be slidably connected to the slide rail groove at the lower end of the seat cushion through the slider, and the seat cushion adjustment mechanism in the square groove and the cylindrical groove can adjust the sliding distance of the seat cushion on the seat mounting plate.

[0007] A fixed shaft is fixedly connected to any one side of the seat mounting plate, and backrest support rods are rotatably connected to both ends of the fixed shaft. A local gear is fixedly connected to one end of the backrest support rods close to the fixed shaft, and a seat tilt adjustment mechanism is fixedly connected to one end of the seat mounting plate close to the local gear. A backrest material is fixedly connected between the two backrest support rods close to the seat mounting plate, and a plurality of trigger mechanisms are arranged in the backrest material. A buzzer is fixedly connected to one side of the middle part of the lower surface of the seat mounting plate close to the fixed shaft.

[0008] Through the above technical solution, the backrest support rod can rotate at both ends of the fixed axis, and one end of any backrest support rod close to the fixed axis is fixedly connected with a local gear. By pulling the push rod in the seat tilt adjustment mechanism, the tilt angle of the backrest can be adjusted. When the staff sits upright, several trigger mechanisms in the backrest material can realize the switching and closing of the circuit, causing the buzzer to sound an alarm to remind the staff to maintain a correct sitting posture.

[0009] The present invention is further configured as follows: the seat cushion adjustment mechanism includes a push rod, a spring stopper, a compression spring, and a pull-up button; the push rod slides through and is connected in the square groove and the cylindrical groove; one end of the push rod in the cylindrical groove is fixedly connected to a spring stopper; the spring stopper and a side of the cylindrical groove away from the slide rail groove are fixedly connected to a compression spring; and one end of the push rod away from the slide rail groove is fixedly connected to a pull-up button.

[0010] Through the above technical solution, the compression spring between the cylindrical groove and the spring stopper can be compressed by pulling the lift button by hand, and the push rod retracts outward near one end of the slide rail groove. When the lift button is released, the compression spring can bounce the push rod back into the slide rail groove.

[0011] The present invention is further configured such that one end of the push rod close to the slide rail groove is slidably connected to the groove.

[0012] Through the above technical solution, one end of the push rod close to the slide rail groove is slidably connected to the groove, so that the seat mounting plate and the seat cushion can be fixed to prevent sliding.

[0013] The present invention is further configured as follows: the seat tilt adjustment mechanism includes a shell, any one side of the shell is fixedly connected to the seat mounting plate, a sliding block is slidably connected in the shell, any one side of the sliding block is fixedly connected to a resistance rod, the resistance rod is located in the middle of the sliding block and is parallel to the upper surface of the shell, the resistance rod is slidably connected to the local gear, the side of the sliding block away from the local gear is fixedly connected to a tension spring, one end of the tension spring away from the sliding block is fixedly connected to the inner wall of the shell away from the local gear, a notch is penetrated through the upper surface of the shell, the notch is located directly above one end of the sliding block close to the tension spring, the sliding block is fixedly connected to a push rod at a position directly below the notch, the push rod passes through the notch and is disposed directly above the shell, and the push rod is slidably connected to the notch.

[0014] Through the above technical solution, the push rod is pulled to slide in the groove, which can drive the sliding block to move toward one end of the tension spring. The tension spring is squeezed, causing the interference rod to move outward along the tooth groove in the local gear. At this time, the inclination of the backrest can be adjusted. When the push rod is released, the tension spring can bounce the sliding block back, causing the interference rod to be slidably connected to the local gear, and the inclination of the backrest is fixed.

[0015] The present invention is further configured such that the trigger mechanism includes a positive contact piece, a resist column is slidably penetrated through the middle of the positive contact piece, a negative contact piece is fixedly connected to either end of the resist column, and a tension spring is fixedly connected between the negative contact piece and the positive contact piece.

[0016] Through the above technical solution, when the staff sits upright, the support columns in several trigger mechanisms in the backrest material are squeezed, which can disconnect the positive contact and the negative contact. When the waist is bent or the sitting posture changes, the tension spring can close the positive contact and the negative contact, and the circuit is closed.

[0017] The present invention is further configured such that a waist belt is fixedly connected to the upper part of the two backrest support rods near the armrests and is located in the middle of the backrest support rods, and a Velcro is fixedly connected to the connection in the middle of the waist belt.

[0018] Through the above technical solution, the waist belt can help the staff maintain a correct sitting posture and reduce back fatigue, and the Velcro can realize the quick connection between the waist belts.

[0019] The present invention is further configured such that the seat mounting plate is located on both sides of the backrest support rod and is fixedly connected with a bracket plate, the bracket plate is located at one end of the seat mounting plate away from the fixed axis, and the upper surfaces of the two bracket plates are fixedly connected with armrests.

[0020] Through the above technical solution, the comfort of the seat is increased and additional stability is provided.

[0021] The present invention is further configured such that a sliding tube is fixedly connected to the middle portion of the lower surface of the seat mounting plate, an end of the sliding tube away from the seat mounting plate is slidably connected to an outer tube, an end of the outer tube slidably connected to the sliding tube is fixedly connected to a lifting adjuster, and an end of the outer tube away from the lifting adjuster is fixedly connected to a base.

[0022] Through the above technical solution, the lifting adjuster can make the sliding tube and the outer tube extend and retract, thereby adjusting the height of the seat, and the base can improve the stability of the seat.

[0023] The present invention is further configured such that a plurality of evenly distributed support frames are fixedly connected to the lower surface of the base in a circumferential manner, and a plurality of universal wheels are fixedly connected to the lower surfaces of the support frames.

[0024] Through the above technical solution, the support frame on the base is responsible for supporting the weight of the seat and ensuring the stability and safety of the seat, while the universal wheels facilitate the movement of the seat.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention provides a trigger mechanism and a buzzer. When the staff sits on the chair, the waist belt can be wrapped around the waist and fixed by Velcro. After the staff sits in a correct posture, several support pillars in the trigger mechanism in the backrest material are squeezed, which can disconnect the positive contact piece from the negative contact piece. When the waist is bent or the sitting posture changes, the tension spring can close the positive contact piece and the negative contact piece. At this time, the circuit is energized and the buzzer emits an alarm sound. The above arrangement can not only enable the staff to maintain a correct sitting posture, but also avoid the natural change of sitting posture during long-term work, so that the buzzer emits an alarm sound, reminding the staff to always maintain a correct sitting posture, and can also improve work efficiency and reduce pain and discomfort caused by bad sitting posture.

[0027] 2. The present invention provides a seat cushion adjustment mechanism, which can pull the pull-type button to compress the compression spring between the cylindrical groove and the spring stopper, so that the push rod moves outward along the groove near one end of the slide rail groove, thereby adjusting the front and rear distance between the seat mounting plate and the seat cushion. When the pull-type button is released, the compression spring can bounce the push rod back into the groove. This setting can conveniently and quickly adjust the front and rear distance of the seat cushion to adapt to the body shapes of different staff members, greatly improving flexibility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first viewing angle diagram of the present invention;

[0029] Figure 2 It is a second viewing angle diagram of the present invention;

[0030] Figure 3 This is a third viewing angle diagram of the present invention;

[0031] Figure 4 This is a fourth viewing angle diagram of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the seat mounting plate in the present invention;

[0033] Figure 6 is a cross-sectional view of the seat cushion of the present invention;

[0034] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0035] Figure 8 is a cross-sectional view of the seat tilt adjustment mechanism of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the trigger mechanism of the present invention;

[0037] Fig.10 for Fig. 9 sectional view of .

[0038] In the figure: 1. seat mounting plate; 2. slider; 3. groove; 4. seat cushion; 5. slide rail groove; 6. push rod; 7. cylindrical groove; 8. spring block; 9. compression spring; 10. pull-up button; 11. square groove; 12. bracket plate; 13. armrest; 14. fixed shaft; 15. sliding block; 16. notch; 17. push rod; 18. tension spring; 19. local gear; 20. backrest support rod; 21. backrest material; 22. positive contact piece; 23. negative contact piece; 24. waist belt; 25. Velcro; 26. buzzer; 27. sliding tube; 28. outer tube; 29. ​​lifting adjuster; 30. base; 31. support frame; 32. universal wheel; 33. shell; 34. resistance rod; 35. resistance column; 36. tension spring. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0040] See also Figure 1-Figure 8A sitting posture adjustment chair for avoiding spinal curvature includes a seat mounting plate 1, a slider 2 is fixedly connected to the center position of the upper end of the seat mounting plate 1, a plurality of grooves 3 are opened on any side of the slider 2, and the grooves 3 are arranged horizontally, a seat cushion 4 is arranged on the upper end of the seat mounting plate 1, a slide rail groove 5 is opened at the center position of the lower end of the seat cushion 4, the slide rail groove 5 is slidably connected with the slider 2, a square groove 11 is set through the middle of the slide rail groove 5 and any side of the seat cushion 4, a cylindrical groove 7 is opened in the side of the square groove 11 close to the seat cushion 4, and the square groove A seat cushion adjustment mechanism is installed in 11 and the cylindrical groove 7, and the seat cushion adjustment mechanism includes a push rod 6, a spring stopper 8, a compression spring 9, and a pull-up button 10. The push rod 6 slides through and is connected in the square groove 11 and the cylindrical groove 7. One end of the push rod 6 in the cylindrical groove 7 is fixedly connected with the spring stopper 8, and the spring stopper 8 and the side of the cylindrical groove 7 away from the slide rail groove 5 are fixedly connected with the compression spring 9. The end of the push rod 6 away from the slide rail groove 5 is fixedly connected with the pull-up button 10, and the end of the push rod 6 close to the slide rail groove 5 is slidably connected with the groove 3.

[0041] The seat mounting plate 1 can be slidably connected to the slide rail groove 5 at the lower end of the seat cushion 4 through the slider 2. The notch 16 on either side of the slider 2 is slidably connected to the push rod 6, so that the seat mounting plate 1 and the seat cushion 4 can be fixed to prevent sliding. By pulling the lift button 10, the compression spring 9 between the cylindrical groove 7 and the spring stopper 8 can be compressed, so that the push rod 6 moves outward along the notch 16 close to one end of the slide rail groove 5, thereby adjusting the front and rear distance between the seat mounting plate 1 and the seat cushion 4 to accommodate workers of different body shapes. When the lift button 10 is released, the compression spring 9 can bounce the push rod 6 back into the notch 16.

[0042] A fixed shaft 14 is fixedly connected to any one side of the seat mounting plate 1, and both ends of the fixed shaft 14 are rotatably connected to a backrest support rod 20, and one end of any one of the backrest support rods 20 close to the fixed shaft 14 is fixedly connected to a local gear 19, and one end of the seat mounting plate 1 close to the local gear 19 is fixedly connected to a seat tilt adjustment mechanism, and the seat tilt adjustment mechanism includes a shell 33, and any one side of the shell 33 is fixedly connected to the seat mounting plate 1, and a sliding block 15 is slidably connected in the shell 33, and a resistance rod 34 is fixedly connected to any one side of the sliding block 15, and the resistance rod 34 is located in the middle of the sliding block 15 and is parallel to the upper surface of the shell 33, and the resistance rod 34 is slidably connected to the local gear 19, and a tension spring 18 is fixedly connected to the side of the sliding block 15 away from the local gear 19, and the end of the tension spring 18 away from the sliding block 15 is fixedly connected to the inner wall of the shell 33 away from the local gear 19, and a notch 16 is provided through the upper surface of the shell 33, and the notch 16 Located just above one end of the sliding block 15 near the tension spring 18, the sliding block 15 is located just below the slot 16 and is fixedly connected with a push rod 17, which passes through the slot 16 and is arranged just above the housing 33, and the push rod 17 is slidably connected to the slot 16, and a backrest material 21 is fixedly connected between the two backrest support rods 20 near the side of the seat mounting plate 1, and a plurality of trigger mechanisms are arranged in the backrest material 21, and the trigger mechanism includes a positive contact sheet 22, a positive contact sheet 2 2 is slidably connected with a support column 35 in the middle, and a negative contact piece 23 is fixedly connected to any end of the support column 35. A tension spring 36 is fixedly connected between the negative contact piece 23 and the positive contact piece 22. A buzzer 26 is fixedly connected to one side of the middle part of the lower surface of the seat mounting plate 1 close to the fixed shaft 14. The two backrest support rods 20 are fixedly connected with waist belts 24 above the seat cushion 4 and are located in the middle of the backrest support rods 20. Velcro 25 is fixedly connected to the connection in the middle of the waist belts 24.

[0043] The backrest support rod 20 can rotate at both ends of the fixed shaft 14, and one end of any backrest support rod 20 close to the fixed shaft 14 is fixedly connected to a local gear 19. By pulling the push rod 17 in the seat tilt adjustment mechanism to slide in the notch 16, the sliding block 15 can be driven to move toward one end of the tension spring 18. The tension spring 18 is squeezed to make the interference rod 34 move outward along the tooth groove in the local gear 19. At this time, the inclination of the backrest can be adjusted. When the push rod 17 is released, the tension spring 18 can rebound the sliding block 15, so that the interference rod 34 and the local gear 19 are moved. The backrest is connected by sliding and the inclination of the backrest is fixed. When the staff sits upright, the support columns 35 in the trigger mechanisms in the backrest material 21 are squeezed, which can disconnect the positive contact 22 from the negative contact 23. When the waist is bent or the sitting posture changes, the tension spring 36 can close the positive contact 22 and the negative contact 23. At this time, the circuit is closed, and the buzzer 26 sounds an alarm to remind the staff to maintain a correct sitting posture. The waist belt 24 can help the staff maintain a correct sitting posture and reduce back fatigue. The Velcro 25 can realize quick connection between the waist belts 24.

[0044] The seat mounting plate 1 is fixedly connected with bracket plates 12 on both sides of the backrest support rod 20. The bracket plates 12 are located at one end of the seat mounting plate 1 away from the fixed axis 14. The upper surfaces of the two bracket plates 12 are fixedly connected with armrests 13.

[0045] It increases the comfort of the seat and also provides extra stability.

[0046] A sliding tube 27 is fixedly connected to the middle part of the lower surface of the seat mounting plate 1, and an outer tube 28 is slidably connected to the end of the sliding tube 27 away from the seat mounting plate 1, and a lifting adjuster 29 is fixedly connected to the end of the outer tube 28 that is slidably connected to the sliding tube 27, and a base 30 is fixedly connected to the end of the outer tube 28 away from the lifting adjuster 29. A plurality of evenly distributed support frames 31 are fixedly connected to the lower surface of the base 30 in a circular manner, and universal wheels 32 are fixedly connected to the lower surfaces of the plurality of support frames 31.

[0047] The lifting adjuster 29 can extend and retract the sliding tube 27 and the outer tube 28, thereby adjusting the height of the seat. The base 30 can improve the stability of the seat. The support frame 31 on the base 30 is responsible for supporting the weight of the seat and ensuring the stability and safety of the seat, while the universal wheels 32 can facilitate the movement of the seat.

[0048] When the present invention is in use, after a worker sits on the seat, the waist belt 24 is wrapped around the waist and fixed by the Velcro 25 to ensure that the waist fits against the backrest. Then, the abutment columns 35 in the trigger mechanism in the backrest material 21 are squeezed, which can disconnect the positive contact piece 22 from the negative contact piece 23. When the sitting posture changes after a long period of work, the waist tilts, and the tension spring 36 in the trigger mechanism can close the positive contact piece 22 and the negative contact piece 23. At this time, the circuit is closed, and the buzzer 26 on the lower surface of the seat mounting plate 1 emits an alarm to remind the worker to maintain a correct sitting posture. The seat tilt adjustment fixedly connected on either side of the seat mounting plate 1 Mechanism, the inclination of the backrest can be adjusted by pulling the push rod 17. When used by workers of different body shapes, the compression spring 9 between the cylindrical groove 7 and the spring stopper 8 can be compressed by pulling the lifting button 10 in the seat cushion adjustment mechanism, so that the push rod 6 moves outward along the groove 16 close to one end of the slide rail groove 5, thereby adjusting the front and rear distance between the seat mounting plate 1 and the seat cushion 4. When the lifting button 10 is released, the compression spring 9 can bounce the push rod 6 back into the groove 16. At this time, the seat mounting plate 1 and the seat cushion 4 are fixed and will not slide. The sliding tube 27 and the outer tube 28 can be extended and retracted through the lifting adjuster 29, thereby adjusting the height of the seat.

[0049] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sitting posture adjustment chair for avoiding spinal curvature, comprising a seat mounting plate (1), characterized in that: A slider (2) is fixedly connected to the center position of the upper end of the seat mounting plate (1), and a plurality of grooves (3) are provided on any side of the slider (2), and the grooves (3) are arranged in a transverse manner. A seat cushion (4) is provided on the upper end of the seat mounting plate (1), and a slide rail groove (5) is provided at the center position of the lower end of the seat cushion (4), and the slide rail groove (5) is slidably connected to the slider (2). A square groove (11) is provided through the middle of the slide rail groove (5) and any side of the seat cushion (4), and a cylindrical groove (7) is provided in the side of the square groove (11) close to the seat cushion (4), and a seat cushion adjustment mechanism is installed in the square groove (11) and the cylindrical groove (7); A fixed shaft (14) is fixedly connected to any one side of the seat mounting plate (1), and both ends of the fixed shaft (14) are rotatably connected to backrest support rods (20), and one end of any one of the backrest support rods (20) close to the fixed shaft (14) is fixedly connected to a local gear (19), and one end of the seat mounting plate (1) close to the local gear (19) is fixedly connected to a seat tilt adjustment mechanism, and a backrest material (21) is fixedly connected between the two backrest support rods (20) close to the seat mounting plate (1), and a plurality of trigger mechanisms are arranged in the backrest material (21), and a buzzer (26) is fixedly connected to the middle part of the lower surface of the seat mounting plate (1) close to the fixed shaft (14).

2. The sitting posture adjustment chair for avoiding spinal curvature according to claim 1, characterized in that: The seat cushion adjustment mechanism comprises a push rod (6), a spring stopper (8), a compression spring (9), and a pull-up button (10); the push rod (6) is slidably connected to and penetrates the square groove (11) and the cylindrical groove (7); one end of the push rod (6) in the cylindrical groove (7) is fixedly connected to the spring stopper (8); the compression spring (9) is fixedly connected to the side of the spring stopper (8) and the cylindrical groove (7) away from the slide rail groove (5); and the pull-up button (10) is fixedly connected to the end of the push rod (6) away from the slide rail groove (5).

3. The sitting posture adjustment chair for avoiding spinal curvature according to claim 2, characterized in that: The end of the push rod (6) close to the slide rail groove (5) is slidably connected to the groove (3).

4. The sitting posture adjustment chair for avoiding spinal curvature according to claim 1, characterized in that: The seat tilt adjustment mechanism comprises a shell (33), any one side of the shell (33) is fixedly connected to the seat mounting plate (1), a sliding block (15) is slidably connected in the shell (33), any one side of the sliding block (15) is fixedly connected to a resistance rod (34), the resistance rod (34) is located in the middle of the sliding block (15) and is parallel to the upper surface of the shell (33), the resistance rod (34) is slidably connected to the local gear (19), and a tension spring (18) is fixedly connected to the side of the sliding block (15) away from the local gear (19). The end of the tension spring (18) away from the sliding block (15) is fixedly connected to the inner wall of the housing (33) away from the local gear (19); a notch (16) is provided through the upper surface of the housing (33); the notch (16) is located directly above the end of the sliding block (15) close to the tension spring (18); the sliding block (15) is fixedly connected with a push rod (17) at a position directly below the notch (16); the push rod (17) passes through the notch (16) and is provided directly above the housing (33); the push rod (17) is slidably connected to the notch (16).

5. The sitting posture adjustment chair for avoiding spinal curvature according to claim 1, characterized in that: The trigger mechanism comprises a positive contact piece (22), a middle portion of the positive contact piece (22) being slidably connected with a support column (35), any one end of the support column (35) being fixedly connected with a negative contact piece (23), and a tension spring (36) being fixedly connected between the negative contact piece (23) and the positive contact piece (22).

6. The sitting posture adjustment chair for avoiding spinal curvature according to claim 1, characterized in that: The two backrest support rods (20) are fixedly connected with waist belts (24) near the top of the seat cushion (4) and are located in the middle of the backrest support rods (20), and the connection points in the middle of the waist belts (24) are fixedly connected with Velcro (25).

7. The sitting posture adjustment chair for avoiding spinal curvature according to claim 1, characterized in that: The seat mounting plate (1) is fixedly connected to bracket plates (12) on both sides of the backrest support rod (20); the bracket plates (12) are located at one end of the seat mounting plate (1) away from the fixed axis (14); and the upper surfaces of the two bracket plates (12) are fixedly connected to armrests (13).

8. The sitting posture adjustment chair for avoiding spinal curvature according to claim 1, characterized in that: A sliding tube (27) is fixedly connected to the middle of the lower surface of the seat mounting plate (1); an end of the sliding tube (27) away from the seat mounting plate (1) is slidably connected to an outer tube (28); an end of the outer tube (28) slidably connected to the sliding tube (27) is fixedly connected to a lifting regulator (29); and an end of the outer tube (28) away from the lifting regulator (29) is fixedly connected to a base (30).

9. The sitting posture adjustment chair for avoiding spinal curvature according to claim 8, characterized in that: The lower surface of the base (30) is fixedly connected to a plurality of evenly distributed support frames (31) in a circumferential manner, and the lower surfaces of the plurality of support frames (31) are fixedly connected to universal wheels (32).

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