Intelligent desk and chair with sitting posture correction function

Abstract

The invention relates to the technical field of intelligent desks and chairs, in particular to an intelligent desk and chair with a sitting posture correcting function, which comprises a cushion and a desk, the cushion is provided with a moving rod through a telescopic mechanism, the moving rod is provided with a gear through a gear moving mechanism, and the cushion is provided with a transverse moving seat through a transverse moving mechanism. The intelligent desk and chair comprises a transverse moving seat, a backrest is installed on the transverse moving seat through a vertical moving mechanism, a fixing pillow is fixedly installed on the upper surface of the backrest, a wide fixing belt is installed on the fixing pillow through a head binding mechanism, and a hook piece is installed on the fixing pillow through a belt pulling mechanism. The user cannot lower the head due to the fixed head in the using process, so that the sitting posture is corrected, and the problems of vision decline, spinal pressure increase, cervical vertebra and muscle injury and the like caused by head lowering are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent desks and chairs, and particularly to an intelligent desk and chair with a sitting posture correction function. Background Art

[0002] Primary school students are in a critical stage of physical development, and their bones, muscles, and nervous systems are not yet fully mature. Long-term use of traditional desks and chairs or maintaining poor sitting postures may cause a series of health problems. As the core equipment in the student learning scenario, the design of desks and chairs directly affects learning efficiency, physical health, and long-term development. Poor desk and chair design may cause the following health problems: 1. Scoliosis: When the backrest has no support or the desk height does not match, children will twist their spines to maintain balance, which may lead to scoliosis in the long term. Scoliosis is directly related to the poor adaptability of desks and chairs. 2. Worsening myopia: The desktop height is too low, resulting in too close eye use distance. 3. Muscle strain: Insufficient seat depth causes the thighs to hang in the air, and the pressure is concentrated on the ischial tuberosities; too deep seat depth compresses the popliteal blood vessels.

[0003] Existing desks and chairs with sitting posture correction functions can only prevent scoliosis through dynamic backtracking, while ignoring problems such as vision decline, increased spinal pressure, cervical spine and muscle injuries caused by some students lowering their heads to do homework.

[0004] Therefore, an intelligent desk and chair with a sitting posture correction function is designed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies in the background art and propose an intelligent desk and chair with a sitting posture correction function.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: an intelligent desk and chair with a sitting posture correction function, including a seat cushion and a desk. The seat cushion is installed with a moving rod through a telescopic mechanism. The moving rod is installed with a gear through a tooth movement mechanism. The seat cushion is installed with a transverse moving seat through a transverse movement mechanism. The transverse moving seat is installed with a backrest through a vertical movement mechanism. A fixed pillow is fixedly installed on the upper surface of the backrest. The fixed pillow is installed with a wide fixing belt through a head binding mechanism. The fixed pillow is installed with a hook member through a pulling belt mechanism;

[0007] The head binding mechanism includes a hook surface magic tape fixedly installed on the outer side of the short side of the wide fixing belt, and a loop surface magic tape is fixedly installed on the inner side of the long side of the wide fixing belt to fix the head.

[0008] Preferably, the telescopic mechanism includes two moving rods fixedly installed on the lower surface of the seat cushion. A fixed rod is movably sleeved on the outer surface of each moving rod. A support member is fixedly installed on the lower surface of each fixed rod. A connecting beam is fixedly installed between the two support members.

[0009] Preferably, the tooth movement mechanism includes a rack fixedly installed on the front side of the inner surface of each moving rod, and a gear is movably installed on the inner surface of each moving rod, and the gear meshes with the rack. An activity groove is respectively formed on both sides of each moving rod, and the activity groove is formed on both sides of the rack. A synchronous rotating rod is fixedly installed on the opposite surfaces of the two gears, and the synchronous rotating rod movably penetrates through the fixed rod and into the activity groove. A hollow rotating rod is fixedly installed on the other side of one of the gears, and the hollow rotating rod movably penetrates through the fixed rod and into the activity groove. A hexagonal column that meshes with each other is movably installed on the inner surface of the hollow rotating rod, and a first rotating handle is fixedly installed on the outer side of the hexagonal column.

[0010] Preferably, a fixed threaded part movably penetrates through the rear surface of the fixed rod, and the fixed threaded part is in threaded cooperation with the fixed rod, and the fixed threaded part is movably installed on the rear side of the moving rod.

[0011] Preferably, the lateral movement mechanism includes a bottom connecting piece fixedly installed on the lower surface of the seat cushion. A first lead screw is movably installed on the inner surface of the bottom connecting piece, and the first lead screw is rotationally connected to the bottom connecting piece. A first guide rod is movably installed on the inner surface of the bottom connecting piece, and the first guide rod movably penetrates through the front surface of the bottom connecting piece. A lateral movement seat is movably installed on the outer surface of the first lead screw, and the lateral movement seat is in threaded cooperation with the first lead screw. The first guide rod is fixedly installed on the front surface of the lateral movement seat. The first lead screw and the first guide rod are installed on one side of the lateral movement seat. A second rotating handle is fixedly installed at the rear end of the first lead screw.

[0012] Preferably, the vertical movement mechanism includes a second lead screw movably installed on the inner surface of the lateral movement seat, and the second lead screw is in threaded cooperation with the lateral movement seat. A second guide rod is fixedly installed on the upper surface of the lateral movement seat. A third rotating handle is fixedly installed on the lower surface of the second lead screw. A vertical movement seat is sleeved on the outer surface of the upper end of the second lead screw, and the vertical movement seat is rotationally connected to the second lead screw. The second guide rod movably penetrates through the upper surface of the vertical movement seat. The second lead screw and the second guide rod are installed on the other side of the lateral movement seat. The backrest is fixedly installed on the front surface of the vertical movement seat.

[0013] Preferably, the head binding mechanism further includes two fixing holes formed in the fixed pillow. A fixing column is fixedly installed on the inner surface of each fixing hole, and the wide fixing belt is fixedly installed on the outer surface of one of the fixing columns on one side.

[0014] Preferably, the pulling belt mechanism includes a positioning piece fixedly installed on one side of the inner surface of the fixed pillow. A C-shaped piece is movably installed on the inner surface of the positioning piece. A hook piece is fixedly installed at the upper end of the C-shaped piece. An L-shaped plate is fixedly installed at the lower end of the C-shaped piece. A fixing piece is movably installed on the inner surface of the L-shaped plate, and the fixing piece movably penetrates through the rear surface of the fixed pillow. A placement hole is formed on the upper surface of the L-shaped plate.

[0015] Preferably, an infrared sensor is fixedly installed inside the desk.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can correct the sitting posture through intelligent desks and chairs. During use, the user's head is fixed and cannot lower, thus correcting the sitting posture and avoiding problems such as vision decline, increased spinal pressure, cervical vertebra and muscle damage caused by lowering the head.

[0018] 2. Through the mutual cooperation of the first lead screw, the first guide rod, the second lead screw, and the second guide rod, the backrest after horizontal and vertical adjustment can not only be in the central position of the back, but also the backrest will fit the back better, achieving the purpose of correcting the sitting posture and improving the applicability of the correction chair at the same time.

[0019] 3. Through the cooperation between the gear and the rack, the moving rod can drive the seat cushion to move up and down, improving the applicability of the correction chair.

[0020] 4. By pulling down the wide fixing belt with the hook member, it is avoided to damage the hairstyle at the back of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0022] Figure 2 is a schematic diagram of the desk structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0023] Figure 3 is a schematic diagram of the backrest structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0024] Figure 4 is a schematic diagram of the telescopic mechanism structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0025] Figure 5 is a schematic diagram of the tooth movement mechanism structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0026] Figure 6 is a schematic diagram of the synchronous rotating rod structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0027] Figure 7 is a schematic diagram of the horizontal movement mechanism structure of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0028] Figure 8 is a schematic diagram of one end of the wide fixing belt of an intelligent desk and chair with a sitting posture correction function according to the present invention;

[0029] Figure 9 Schematic structural diagram of the pulling belt mechanism of an intelligent school desk and chair with a sitting posture correction function according to the present invention;

[0030] In the figure: 1, seat cushion; 2, desk; 3, infrared sensor; 4, connecting beam; 5, fixed rod; 6, moving rod; 7, rack; 8, gear; 9, hollow rotating rod; 10, hexagonal column; 11, first rotating handle; 12, synchronous rotating rod; 13, fixed threaded part; 14, support member; 15, bottom connecting member; 16, first lead screw; 17, first guide rod; 18, transverse moving seat; 19, second rotating handle; 20, second lead screw; 21, second guide rod; 22, third rotating handle; 23, vertical moving seat; 24, backrest; 25, fixed pillow; 26, fixing hole; 27, fixing column; 28, wide fixing belt; 29, hook surface magic tape; 30, loop surface magic tape; 31, positioning member; 32, C-shaped member; 33, hook member; 34, L-shaped plate; 35, fixing member; 36, placing hole; 37, movable groove. Specific embodiments

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0032] As Figures 1-9 shown, an intelligent school desk and chair with a sitting posture correction function includes a seat cushion 1 and a desk 2. The seat cushion 1 is installed with a moving rod 6 through a telescopic mechanism. The moving rod 6 is installed with a gear 8 through a tooth movement mechanism. The seat cushion 1 is installed with a transverse moving seat 18 through a transverse movement mechanism. The transverse moving seat 18 is installed with a backrest 24 through a vertical movement mechanism. A fixed pillow 25 is fixedly installed on the upper surface of the backrest 24. The fixed pillow 25 is installed with a wide fixing belt 28 through a binding head mechanism. The fixed pillow 25 is installed with a hook member 33 through a pulling belt mechanism;

[0033] The binding head mechanism includes a hook surface magic tape 29 fixedly installed on the outer side of the short side of the wide fixing belt 28, and a loop surface magic tape 30 fixedly installed on the inner side of the long side of the wide fixing belt 28 to fix the head.

[0034] The telescopic mechanism includes two moving rods 6 fixedly installed on the lower surface of the seat cushion 1. A fixed rod 5 is movably sleeved on the outer surface of each moving rod 6, so that the moving rod 6 can drive the seat cushion 1 to move up and down. A support member 14 is fixedly installed on the lower surface of each fixed rod 5 to give an upward supporting force. A connecting beam 4 is fixedly installed between the two support members 14 to increase the firmness of the two support members 14.

[0035] The tooth movement mechanism includes a rack 7 fixedly installed on the front side of the inner surface of each moving rod 6, and a gear 8 is movably installed on the inner surface of each moving rod 6, and the gear 8 meshes with the rack 7. An activity groove 37 is respectively opened on both sides of each moving rod 6, and the activity groove 37 is opened on both sides of the rack 7. A synchronous rotation rod 12 is fixedly installed on the opposite surfaces of the two gears 8, and the synchronous rotation rod 12 movably penetrates through the fixed rod 5 and into the activity groove 37. On the other side of one of the gears 8, a hollow rotation rod 9 is fixedly installed, and the hollow rotation rod 9 movably penetrates through the fixed rod 5 and into the activity groove 37. A hexagonal column 10 that meshes with each other is movably installed on the inner surface of the hollow rotation rod 9. A first rotation handle 11 is fixedly installed on the outer side of the hexagonal column 10. Rotate the first rotation handle 11 to make the hexagonal column 10 drive the hollow rotation rod 9 and the gear 8 to rotate, and the connected synchronous rotation rod 12 drives the other gear 8 to rotate synchronously. Since the activity groove 37 is opened inside the moving rod 6, the synchronous rotation rod 12 will not hinder the up and down movement of the moving rod 6. Since the gear 8 meshes with the rack 7, when the gear 8 rotates, the two moving rods 6 will move up and down synchronously, thereby adjusting the up and down movement of the cushion 1.

[0036] A fixed threaded part 13 movably penetrates through the rear surface of the fixed rod 5, and the fixed threaded part 13 is in threaded cooperation with the fixed rod 5, and the fixed threaded part 13 is movably installed on the rear side of the moving rod 6. By rotating the fixed threaded parts 13 inside the two fixed rods 5 counterclockwise, the moving rod 6 is fixed to prevent the cushion 1 from moving down under the influence of gravity.

[0037] The lateral movement mechanism includes a bottom connecting part 15 fixedly installed on the lower surface of the cushion 1. A first lead screw 16 is movably installed on the inner surface of the bottom connecting part 15, and the first lead screw 16 is rotatably connected to the bottom connecting part 15. A first guide rod 17 is movably installed on the inner surface of the bottom connecting part 15, and the first guide rod 17 movably penetrates through the front surface of the bottom connecting part 15. A lateral movement seat 18 is movably installed on the outer surface of the first lead screw 16, and the lateral movement seat 18 is in threaded cooperation with the first lead screw 16. The first guide rod 17 is fixedly installed on the front surface of the lateral movement seat 18, and the first lead screw 16 and the first guide rod 17 are installed on one side of the lateral movement seat 18. A second rotation handle 19 is fixedly installed at the rear end of the first lead screw 16. Rotating the second rotation handle 19 drives the first lead screw 16 to rotate. And since the position of the bottom connecting part 15 is relatively fixed, the lateral movement seat 18 that is in threaded cooperation with the first lead screw 16 will move back and forth. And since the first guide rod 17 fixedly installed on the front surface of the lateral movement seat 18 movably penetrates through the bottom connecting part 15, the lateral movement seat 18 will not flip during the back and forth movement, enabling the position of the backrest 24 to fit the back better.

[0038] The vertical movement mechanism includes a second lead screw 20 movably installed on the inner surface of the transverse movement base 18, and the second lead screw 20 is in threaded fit with the transverse movement base 18. A second guide rod 21 is fixedly installed on the upper surface of the transverse movement base 18. A third rotating handle 22 is fixedly installed on the lower surface of the second lead screw 20. A vertical movement base 23 is sleeved on the outer surface of the upper end of the second lead screw 20, and the vertical movement base 23 is rotatably connected to the second lead screw 20. The second guide rod 21 movably penetrates through the upper surface of the vertical movement base 23. The second lead screw 20 and the second guide rod 21 are installed on the other side of the transverse movement base 18. The backrest 24 is fixedly installed on the front surface of the vertical movement base 23. Rotating the third rotating handle 22 drives the second lead screw 20 to rotate. Since the vertical position of the transverse movement base 18 is relatively fixed, the vertical movement base 23 rotatably connected to the second lead screw 20 will move up and down. Since the second guide rod 21 fixedly installed on the upper surface of the transverse movement base 18 movably penetrates through the vertical movement base 23, the vertical movement base 23 will not flip during the up and down movement. The backrest 24 after vertical adjustment can be in the center position of the back, and the backrest 24 will fit the back better, achieving the purpose of correcting the sitting posture.

[0039] The head binding mechanism further includes two fixing holes 26 opened in the fixed pillow 25. A fixing column 27 is fixedly installed on the inner surface of each fixing hole 26. A wide fixing belt 28 is fixedly installed on the outer surface of one of the fixing columns 27. The short side of the wide fixing belt 28 fixed to the outer surface of the fixing column 27 faces forward, and the long side faces backward and passes through the other fixing hole 26 to the front. Let the user lift the head and press the neck tightly against the fixed pillow 25. First, place the short side of the fixing belt with the hook surface magic tape 29 in front of the forehead, and then tighten the long side of the fixing belt with the loop surface magic tape 30 to make the long side overlap with the short side, so that the hook surface magic tape 29 fits the loop surface magic tape 30. Widening the fixing belt can increase the force-bearing surface, which can not only fix the head and correct the sitting posture, but also adapt to different head circumferences.

[0040] The pulling belt mechanism includes a positioning member 31 fixedly installed on one side of the inner surface of the fixed pillow 25. A C-shaped member 32 is movably installed on the inner surface of the positioning member 31. A hook member 33 is fixedly installed at the upper end of the C-shaped member 32. An L-shaped plate 34 is fixedly installed at the lower end of the C-shaped member 32. A fixing member 35 is movably installed on the inner surface of the L-shaped plate 34, and the fixing member 35 movably penetrates through the rear surface of the fixed pillow 25. A placement hole 36 is opened on the upper surface of the L-shaped plate 34. When the user has a hairstyle such as a ponytail at the back, press down the L-shaped plate 34 so that the hook member 33 pulls down the wide fixing belt 28 at the back to avoid damaging the hairstyle. The fixing member 35 is used to fix the L-shaped plate 34 and the hook member 33. When not in use, place the fixing member 35 in the placement hole 36 to prevent loss.

[0041] An infrared sensor 3 is fixedly installed in the desk 2 to intelligently detect whether the user is studying in front of the desk 2 through the infrared sensor 3.

[0042] In use, in order to adapt to the growing user, the seat cushion 1 and the backrest 24 need to be adjusted. First, adjust the seat cushion 1. Rotate the first rotating handle 11 clockwise, so that the hexagonal column 10 drives the hollow rotating rod 9 and the gear 8 to rotate clockwise. The connected synchronous rotating rod 12 drives another gear 8 to rotate synchronously. Since the inner part of the moving rod 6 is provided with a movable groove 37, the synchronous rotating rod 12 will not hinder the up and down movement of the moving rod 6. Since the gear 8 meshes with the rack 7, when the gear 8 rotates clockwise, the two moving rods 6 will move up synchronously, so as to adjust the seat cushion 1 to move up. The user sits down gently. When the knee joint is parallel to the ground, it is the best position. By rotating the fixing threaded parts 13 in the two fixing rods 5 counterclockwise, the moving rod 6 is fixed to prevent the seat cushion 1 from moving down under the influence of gravity. Then, adjust the backrest 24. Rotate the second rotating handle 19 clockwise to drive the first lead screw 16 to rotate clockwise. And because the position of the bottom connecting part 15 is relatively fixed, the transverse moving seat 18 threadedly engaged with the first lead screw 16 will move backward. And because the first guide rod 17 fixedly installed on the front surface of the transverse moving seat 18 movably penetrates through the bottom connecting part 15, the transverse moving seat 18 will not turn over during the forward and backward movement. Rotate the third rotating handle 22 counterclockwise to drive the second lead screw 20 to rotate counterclockwise. And because the vertical position of the transverse moving seat 18 is relatively fixed, the vertical moving seat 23 rotatably connected with the second lead screw 20 will move up. And because the second guide rod 21 fixedly installed on the upper surface of the transverse moving seat 18 movably penetrates through the vertical moving seat 23, the vertical moving seat 23 will not turn over during the up and down movement. The backrest 24 after the horizontal and vertical adjustments can not only be in the center position of the back, but also fit the back better, achieving the purpose of correcting the sitting posture;

[0043] When in daily use, the user is sitting upright on the correction chair. The short side of the wide fixing belt 28 fixed outside the fixing column 27 faces forward and the long side faces backward, passes through another fixing hole 26 and comes to the front. Let the user lift the head and press the neck tightly against the fixing pillow 25. First, place the short side of the fixing belt with the hook surface magic tape 29 in front of the forehead, and then tighten the long side of the fixing belt with the loop surface magic tape 30 to overlap with the short side, so that the hook surface magic tape 29 is attached to the loop surface magic tape 30. Widening the fixing belt can increase the stress surface. In this way, it can not only fix the head and correct the sitting posture, but also adapt to different head circumferences. When the user has a ponytail or other hairstyles at the back, press down the L-shaped plate 34 so that the hook member 33 pulls down the wide fixing belt 28 at the back to avoid conflict with the hairstyle. Fix the L-shaped plate 34 and the hook member 33 through the fixing member 35. When not in use, place the fixing member 35 in the placing hole 36 to prevent loss.

[0044] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit scope of the present invention, there will be various changes and improvements to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent school desk and chair with a sitting posture correction function, comprising a seat cushion (1) and a desk (2), characterized in that: The seat cushion (1) is installed with a moving rod (6) through a telescopic mechanism, the moving rod (6) is installed with a gear (8) through a tooth shifting mechanism, the seat cushion (1) is installed with a transverse moving seat (18) through a transverse moving mechanism, the transverse moving seat (18) is installed with a backrest (24) through a vertical moving mechanism, a fixed pillow (25) is fixedly installed on the upper surface of the backrest (24), the fixed pillow (25) is installed with a wide fixing belt (28) through a binding head mechanism, and the fixed pillow (25) is installed with a hook member (33) through a pulling belt mechanism; The binding head mechanism includes a hook surface magic tape (29) fixedly installed on the outer side of the short side of the wide fixing belt (28), and a loop surface magic tape (30) is fixedly installed on the inner side of the long side of the wide fixing belt (28) to fix the head.

2. The intelligent school desks and chairs with a sitting posture correction function according to claim 1, characterized in that: The telescopic mechanism includes two moving rods (6) fixedly installed on the lower surface of the seat cushion (1), a fixed rod (5) is movably sleeved on the outer surface of each moving rod (6), a support member (14) is fixedly installed on the lower surface of each fixed rod (5), and a connecting beam (4) is fixedly installed between the two support members (14).

3. The intelligent school desks and chairs with a sitting posture correction function according to claim 1 are characterized in that: The tooth shifting mechanism includes a rack (7) fixedly installed on the front side of the inner surface of each moving rod (6), a gear (8) is movably installed on the inner surface of each moving rod (6), and the gear (8) meshes with the rack (7). An activity groove (37) is respectively formed on both sides of each moving rod (6), and the activity groove (37) is formed on both sides of the rack (7). A synchronous rotating rod (12) is fixedly installed on the opposite surfaces of the two gears (8), and the synchronous rotating rod (12) movably penetrates through the fixed rod (5) and into the activity groove (37). A hollow rotating rod (9) is fixedly installed on the other side of one of the gears (8), and the hollow rotating rod (9) movably penetrates through the fixed rod (5) and into the activity groove (37). A hexagonal column (10) that meshes with each other is movably installed on the inner surface of the hollow rotating rod (9), and a first rotating handle (11) is fixedly installed on the outer side of the hexagonal column (10).

4. The intelligent school desks and chairs with a sitting posture correction function according to claim 3, characterized in that: A fixed threaded member (13) movably penetrates through the rear surface of the fixed rod (5), and the fixed threaded member (13) is in threaded cooperation with the fixed rod (5), and the fixed threaded member (13) is movably installed on the rear side of the moving rod (6).

5. The intelligent school desks and chairs with a sitting posture correction function according to claim 1, characterized in that: The transverse movement mechanism includes a bottom connecting member (15) fixedly installed on the lower surface of the seat cushion (1). A first lead screw (16) is movably installed on the inner surface of the bottom connecting member (15), and the first lead screw (16) is rotatably connected to the bottom connecting member (15). A first guide rod (17) is movably installed on the inner surface of the bottom connecting member (15), and the first guide rod (17) movably penetrates the front surface of the bottom connecting member (15). A transverse movement seat (18) is movably installed on the outer surface of the first lead screw (16), and the transverse movement seat (18) is in threaded cooperation with the first lead screw (16). The first guide rod (17) is fixedly installed on the front surface of the transverse movement seat (18). The first lead screw (16) and the first guide rod (17) are installed on one side of the transverse movement seat (18). A second rotating handle (19) is fixedly installed at the rear end of the first lead screw (16).

6. The intelligent school desk and chair with a sitting posture correction function according to claim 5, characterized in that: The vertical movement mechanism includes a second lead screw (20) movably installed on the inner surface of the transverse movement seat (18), and the second lead screw (20) is in threaded cooperation with the transverse movement seat (18). A second guide rod (21) is fixedly installed on the upper surface of the transverse movement seat (18). A third rotating handle (22) is fixedly installed on the lower surface of the second lead screw (20). A vertical movement seat (23) is sleeved on the outer surface of the upper end of the second lead screw (20), and the vertical movement seat (23) is rotatably connected to the second lead screw (20). The second guide rod (21) movably penetrates the upper surface of the vertical movement seat (23). The second lead screw (20) and the second guide rod (21) are installed on the other side of the transverse movement seat (18). A backrest (24) is fixedly installed on the front surface of the vertical movement seat (23).

7. The intelligent school desks and chairs with a sitting posture correction function according to claim 1, characterized in that: The head binding mechanism further includes two fixing holes (26) opened in the fixed pillow (25). A fixing column (27) is fixedly installed on the inner surface of each fixing hole (26), and a wide fixing belt (28) is fixedly installed on the outer surface of one of the fixing columns (27).

8. The intelligent school desks and chairs with a sitting posture correction function according to claim 1, characterized in that: The pulling belt mechanism includes a positioning member (31) fixedly installed on one side of the inner surface of the fixed pillow (25). A C-shaped member (32) is movably installed on the inner surface of the positioning member (31). A hook member (33) is fixedly installed at the upper end of the C-shaped member (32). An L-shaped plate (34) is fixedly installed at the lower end of the C-shaped member (32). A fixing member (35) is movably installed on the inner surface of the L-shaped plate (34), and the fixing member (35) movably penetrates the rear surface of the fixed pillow (25). A placement hole (36) is opened on the upper surface of the L-shaped plate (34).

9. The intelligent school desks and chairs with a sitting posture correction function according to claim 1, characterized in that: An infrared sensor (3) is fixedly installed in the desk (2).

Images