Intelligent office chair based on human engineering

Abstract

The invention relates to the field of office chairs, in particular to an intelligent office chair based on ergonomics, which comprises a seat, two seat plates are mounted on the seat, a backrest is fixedly mounted on the rear side of the seat, a rotating seat is fixedly mounted in the middle of each seat plate, a limiting rod is fixedly mounted on the seat, and the rotating seat is fixedly mounted on the limiting rod. The rotating seat is rotatably connected to the limiting rod, and a waist support is slidably connected to the seat and located below the backrest. The sitting plate is pushed to turn over up and down through the pushing assembly, the waist support moves towards one side to abut against the waist of an office worker while the sitting plate turns over up and down, the lumbar vertebra part of the office worker can be pushed up and contracted through downward turning over of the sitting plate and moving of the waist support, the office worker sitting for a long time is exercised, and the office worker is more comfortable. The situation that waist muscles are prone to tension and fatigue when the office staff keep the same posture for a long time is avoided, and the comfort of the office staff is improved.

Description

Technical Field

[0001] The invention relates to the field of office chairs, in particular to an intelligent office chair based on ergonomics. Background Art

[0002] Office chairs are an indispensable part of office furniture. They provide employees with a comfortable and healthy sitting environment, and play an important role in improving work efficiency and reducing the risk of occupational diseases.

[0003] Through the gas rod or mechanical structure, the height of the chair can be easily adjusted to adapt to different heights and desk heights, and the backrest of the chair can be tilted forward and backward to meet the needs of different sitting postures, which helps to relieve back fatigue. At the same time, the chair can rotate 360 ​​degrees, which is convenient for employees to move around the office and communicate with colleagues. Of course, the height and angle of the armrests can usually be adjusted to provide better arm support. However, some office workers need a more comfortable chair to use, so the patent application with patent publication number CN111407111A provides an office chair that massages the neck of the office worker through a neck massage mechanism, which can reduce the soreness and swelling caused by the cervical spine and reduce the risk of cervical spondylosis. The sponge cushion and sponge backrest are cooled by an air-cooled support frame, which reduces the large amount of heat generated where the human body contacts the chair, and improves the comfort of the office worker. However, for those office workers with lumbar diseases, long-term sitting will seriously aggravate their lumbar diseases, causing the office worker to have increased pain.

[0004] Therefore, an intelligent office chair based on ergonomics is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent office chair based on ergonomics to solve the problem that for office workers with lumbar diseases, long-term sitting will seriously aggravate their lumbar diseases and cause increased pain for office workers.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The seat is provided with a seat plate, a backrest being fixedly installed on the rear side of the seat, the seat plate being provided with two rotating seats, a limiting rod being fixedly installed on the seat, the rotating seat being rotatably connected to the limiting rod, a lumbar support being slidably connected to the seat, and the lumbar support being located below the backrest.

[0008] When an office worker sits on the smart office chair, the office chair is started and the pushing component pushes the seat plate to flip downward. At this time, the office worker's buttocks will be continuously lifted upward, and the office worker will also have a tendency to slide downward. The downward sliding trend makes the office worker's waist continuously straighten, and the discomfort caused by sitting for a long time is relieved by straightening the posterior spine. When the seat plate flips downward, the lumbar support moves to one side to press against the office worker's waist. Through the downward flipping of the seat plate and the movement of the lumbar support, the office worker's lumbar spine will be pushed upward, which exercises the office worker who sits for a long time. Of course, when the pushing component pushes the seat plate to flip upward, the office worker's buttocks will shrink downward, and the office worker will also have a tendency to slide to the back of the chair. The office worker's waist will shrink by flipping the seat plate upward, and the lumbar support moves to the other side. It is away from the office worker's waist, making the waist contraction more complete. Of course, a switching component is also installed on the seat. The switching component switches the pushing mode of the pushing component to make the lumbar support return to its original position, and the seat board flips in two different directions. The two seat boards are flipped to both sides respectively, so that the seat board can continuously lift the two thighs of the office worker to exercise the waist. The swing of the lower limbs can drive the waist muscles to contract and relax rhythmically. This exercise method can enhance the strength of the waist muscles to a certain extent, thereby helping to support the lumbar spine and reduce the risk of lumbar injury. At the same time, with the forward and backward movement of the lumbar support, the seat board swings downward when the lumbar support is against the waist, which effectively disperses the pressure on the spine and waist muscles, reduces the burden on the lumbar spine, and reduces excessive activity of the lumbar spine, thereby alleviating the pain caused by uneven force or excessive activity of the lumbar spine.

[0009] Preferably, the pushing assembly includes a driving motor, a pushing base, a threaded rod, a sliding block, a lifting rod and an articulated seat. The driving motor is fixedly installed on the seat, and two parallel pushing bases are rotatably installed on the seat. The pushing base is located below two seat plates, and a threaded rod is rotatably installed on the pushing base. The switching assembly is installed between the threaded rod and the output shaft of the driving motor. A sliding block is threadedly connected to the threaded rod, and the sliding block slides on the pushing base. A lifting rod is hinged on the sliding block, and the other end of the lifting rod is installed on the seat plate through a hinged seat, and the position of the hinged seat is set on the side away from the backrest. The sliding block is provided with a connecting piece connected to the lumbar support.

[0010] The rotating threaded rod drives the sliding block threaded thereon to move. Of course, because the sliding block is slidably connected to the pushing base, the sliding block will move straight, and the moving sliding block will drive the lifting rod hinged thereon to move to one side, and the other side of the lifting rod is also installed on the seat plate through a hinge seat, so the movement of the lifting rod will push the seat plate upward, so that the seat plate can be flipped upward, so that the driving motor only needs to use a smaller power to push the seat plate to flip up and down, reducing the amount of electricity required when using the smart office chair, and the up and down flipping of the seat plate back and forth can stretch and contract the lumbar spine of the office worker, and massage the lumbar spine of the office worker through stretching and contraction, so that the office worker will not have lumbar pain or lumbar disease when working for a long time.

[0011] Preferably, the connecting member includes a limit frame, a pushing frame, a compression spring, a pushing rod, and a connecting rod. The seat is fixedly provided with an inclined limit frame, the limit frame is slidably connected to the pushing frame, the lumbar support is provided at one end of the pushing frame, a compression spring is fixedly provided between the lumbar support and the pushing frame, the seat is hinged with a pushing rod, the sliding block is fixedly provided with a connecting rod, and the other end of the connecting rod is hinged with the pushing rod.

[0012] The lumbar support is pushed by the swing of the other end of the push rod, and is pushed closer to the waist of the staff. By squeezing the waist of the staff, additional support is provided for the waist of the staff. Of course, when the sliding block moves to the other side, the lumbar support is driven to move backward through the connecting rod and the push rod. When the lumbar support is against the waist, it can effectively disperse the pressure of the spine and waist muscles and reduce the burden on the lumbar spine. This support helps to stabilize the lumbar structure and reduce excessive lumbar activity, thereby alleviating pain caused by uneven force or excessive activity of the lumbar spine. At the same time, the lumbar support provides a comfortable and comfortable fit through its rigidity and fit. It can limit the bending and rotation of the spine. This limiting effect helps to reduce the pressure and stimulation on the lumbar intervertebral disc, thereby relieving the pain caused by lumbar disc problems. Of course, the lumbar support returns to its original position after a certain amount of support. It can reduce the fatigue of the waist muscles. When maintaining the same posture for a long time or doing heavy physical labor, the waist muscles are prone to tension and fatigue. After the lumbar support is removed, it can share part of the muscle burden during its intervention, relieve muscle tension and pain, promote muscle repair and recovery, and reduce the fatigue of the staff's waist muscles by moving the lumbar support forward and backward and the seat up and down.

[0013] Preferably, the switching assembly includes a prismatic telescopic rod, a driving bevel gear, a driving box, a transmission bevel gear, a first switching gear, a second switching gear, a third switching gear, a transmission belt, and a switching rod. The driving motor output shaft is mounted with a prismatic telescopic rod, and the movable end of the prismatic telescopic rod is fixedly mounted with a driving bevel gear. The seat is mounted with a driving box, and the driving box is rotatably connected with a transmission bevel gear meshing with the driving bevel gear. The driving bevel gear is fixedly mounted with a first switching gear. Two second switching gears are fixedly mounted on the seat, and the second switching gear is arranged on both sides of the first switching gear. When the prismatic telescopic rod moves backward, the first switching gear meshes with the second switching gears on both sides. The third switching gear is fixedly mounted on the transmission bevel gear rotating shaft on one side, and the third switching gear meshes with the second switching gear. A transmission belt is mounted between the transmission bevel gear rotating shaft on the other side and the second switching gear rotating shaft on the other side. The switching rod is fixedly mounted on the movable end of the prismatic telescopic rod. The limiting frame includes a support column fixed on the seat and a limiting ring rotatably connected to the support column, and the switching rod abuts against the pushing frame.

[0014] The rotating transmission bevel gear drives the threaded rod to rotate through the drive box connected to it, so that the seat can be flipped up and down. The front and rear movement of the lumbar support and the up and down movement of the seat can reduce the fatigue of the staff's waist muscles. Some staff members are not used to the front and rear movement of the seat to relieve the waist. At this time, they push the switching rod to one side, and the switching rod drives the active rod of the prismatic telescopic rod to contract, so that the sliding block moves forward and pushes the seat on one side to lift up. Of course, because there is a transmission belt between the transmission bevel gear shaft on the other side and the second switching gear shaft on the other side, the second switching gear will drive the transmission bevel gear shaft Rotate in the same direction so that the threaded rod on the other side rotates in the opposite direction, causing the sliding block to move backward and push the seat on one side to flip downward. Of course, it should be noted that when the switching rod moves backward, the lumbar support needs to return to its original position and will not move to one side to press against the operator's waist, ensuring that the lumbar support will not interfere with the up and down swinging of the thighs when the seat is flipped up and down. By flipping the seat up and down, the office worker's thighs can swing up and down, and the swinging of the lower limbs can drive the waist muscles to contract and relax rhythmically. This type of exercise can enhance the strength of the waist muscles to a certain extent, thereby helping to support the lumbar spine and reduce the risk of lumbar injury.

[0015] Preferably, a leg guard is fixedly mounted on the seat, two leg guard grooves are provided on the leg guard, and massage rollers are rotatably connected to inner walls on both sides of the leg guard grooves.

[0016] The office worker can put his legs into the leg guard slot. When the seat flips up, the worker's legs will be lifted up. Through the movement of the legs, multiple massage rollers will roll on the office worker's calves, and the office worker's calves will be massaged continuously. The acupuncture points such as Chengshan on the calves are closely related to the waist. By massaging these acupuncture points, the meridians and nerves related to the waist can be stimulated, thereby relieving the symptoms of low back pain.

[0017] Preferably, a moving block is slidably connected inside the pushing frame, one end of the moving block is fixedly mounted on the waist support, a threaded hole is opened inside the pushing frame, a long bolt is threadedly connected inside the threaded hole, and one end of the long bolt abuts against the moving block.

[0018] Because each person's body size is different, different people need the position of the lumbar support to be in different states. Therefore, the distance between the moving block and the lumbar support can be adjusted by rotating the long bolt. By adjusting the distance, the original position of the lumbar support can be changed. The long bolt is rotated at the same time, so that the long bolt continues to move in the threaded hole, and the moving block is moved to push the lumbar support to change its position. By changing the different positions of the lumbar support, the smart office chair can be suitable for different people.

[0019] Preferably, the seat plate is provided with two separately arranged vent holes, which are respectively arranged on the front and rear sides of the seat plate, and air bags are arranged below the vent holes, the air bags are connected to the vent holes through pipes, and the air bags on the front sides are connected to the vent holes on the rear sides, when the seat plate is flipped up and down, the up and down flipping of the seat plate can resist the air bags below, so that the air bags below can be compressed, and when the seat plate is flipped down, the front air bags are pushed for squeezing, because the air bags on the front sides are connected to the vent holes on the rear sides, and the air bags on the rear sides are connected to the vent holes on the front sides, the gas will be discharged from the vent holes on the rear sides after the air bags are squeezed, and because the seat plate is flipped downward, the human body keeps a forward leaning state at this time, so that the gas can be better discharged through the vent holes on the rear sides, thereby indirectly improving the comfort of the office workers.

[0020] Preferably, two through windows are provided on the backrest, and the two through windows are symmetrically arranged with each other. A plurality of pressing rollers are rotatably connected in the through windows. Of course, when the office worker leans on the backrest and the seat board below flips up and down, the human body can also follow the slight up and down swing. Because the waist of the human body leans on the backrest, the pressing rollers can reciprocate with the back of the human body. The rotation of the pressing rollers reduces the friction between the back of the human body and the backrest, and the back is slightly massaged. At the same time, the pressing rollers are located on both sides of the back to avoid direct contact with the lumbar spine, thereby improving the comfort of the office chair when used.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The pushing component pushes the seat to flip up and down. At this time, the office worker's buttocks will be constantly lifted and dropped. While the seat flips up and down, the lumbar support moves to one side to press against the office worker's waist. Through the downward flipping of the seat and the movement of the lumbar support, the office worker's lumbar spine will be pushed up and contracted, which can exercise the office workers who sit for a long time, avoid the waist muscles from being tense and fatigued when maintaining the same posture for a long time, and improve the comfort of the office workers.

[0023] 2. The switching component changes the flipping mode of the seat, so that the seat panels on both sides can flip in different directions. The up and down flipping of the seat allows the office worker's thighs to swing up and down. The swinging of the lower limbs can drive the waist muscles to contract and relax rhythmically. This type of exercise can enhance the strength of the waist muscles to a certain extent, thereby helping to support the lumbar spine, reduce the risk of lumbar spine injury, and indirectly improve the comfort of office workers.

[0024] 3. When the office worker leans on the backrest, the seat below flips up and down, allowing the human body to swing slightly up and down. Because the waist of the human body leans on the backrest, the pressing roller can reciprocate with the back of the human body. The rotation of the pressing roller reduces the friction between the back of the human body and the backrest, and also performs a slight massage on the back, thereby improving the comfort of the office chair when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the seat in the present invention;

[0027] Figure 3 It is an enlarged structural schematic diagram of the seat plate in the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the driving motor in the present invention;

[0029] Figure 5 is an internal top view of the seat of the present invention;

[0030] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 7 It is a structural schematic diagram of the pushing base in the present invention;

[0032] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0033] In the figure: 1. seat; 2. seat plate; 3. backrest; 4. vent; 5. lumbar support; 6. through window; 7. pressing roller; 8. leg guard; 9. massage roller; 10. pushing frame; 11. pushing rod; 12. connecting rod; 13. limiting frame; 131. limiting ring; 132. supporting column; 14. airbag; 15. driving motor; 16. pushing base; 17. threaded rod; 18. sliding block; 19. lifting rod; 20. limiting rod; 21. rotating seat; 22. switching rod; 23. articulated seat; 24. driving box; 25. prismatic telescopic rod; 26. driving bevel gear; 27. transmission bevel gear; 28. first switching gear; 29. ​​second switching gear; 30. third switching gear; 31. transmission belt; 32. moving block; 33. compression spring; 35. long bolt. DETAILED DESCRIPTION

[0034] See also Figures 1 to 8 The present invention provides an intelligent office chair based on ergonomics, and the technical solution is as follows:

[0035] An intelligent office chair based on ergonomics comprises a seat 1, a seat plate 2 is installed on the seat 1, a backrest 3 is fixedly installed on the rear side of the seat 1, two seat plates 2 are provided, a rotating seat 21 is fixedly installed in the middle position of the seat plate 2, a limit rod 20 is fixedly installed on the seat 1, the rotating seat 21 is rotatably connected to the limit rod 20, a lumbar support 5 is slidably connected to the seat 1, the lumbar support 5 is located below the backrest 3, a pushing component is installed on the seat 1, one side of the pushing component is connected to the seat plate 2, and the other side is connected to the lumbar support 5.

[0036] When the office worker sits on the smart office chair, the office chair is started and the pushing component pushes the seat plate 2 to flip downward. At this time, the office worker's buttocks will be continuously lifted upward, and the office worker will also have a tendency to slide downward. The downward sliding trend makes the office worker's waist continuously straightened, and the discomfort caused by sitting for a long time is relieved by straightening the posterior spine. When the seat plate 2 flips downward, the lumbar support 5 moves to one side to press against the office worker's waist. Through the downward flipping of the seat plate 2 and the movement of the lumbar support 5, the lumbar vertebrae of the office worker are pushed upward, and the waist muscles are rhythmically contracted and relaxed. This exercise method can enhance the strength of the waist muscles to a certain extent, thereby helping to support the lumbar vertebrae. Of course, when the pushing component pushes the seat plate 2 to flip upward, the office worker's buttocks will shrink downward, and the office worker will also have a tendency to slide to the back of the chair 1. The upward flipping of the seat plate 2 makes the office worker's waist shrink, and at the same time, the lumbar support 5 moves to the other side. One side moves away from the office worker's waist, making the contraction of the waist more complete. The up and down swinging of the seat through stretching and contraction has a better massage effect on the office worker's lumbar vertebra. Of course, a switching component is also installed on the seat 1. The switching component switches the pushing mode of the pushing component to make the lumbar support 5 return to its original position, and the seat 2 flips in two different directions respectively. By flipping the two seat boards 2 to both sides respectively, the seat board 2 can continuously lift the two thighs of the office worker to exercise the waist. The swinging of the lower limbs can drive the waist muscles to contract and relax rhythmically. This exercise method can enhance the strength of the waist muscles to a certain extent, thereby helping to support the lumbar spine and reduce the risk of lumbar injury. At the same time, with the forward and backward movement of the lumbar support, the seat board swings downward when the lumbar support is against the waist, which effectively disperses the pressure on the spine and lumbar muscles, reduces the burden on the lumbar spine, and reduces excessive activity of the lumbar spine, thereby alleviating the pain caused by uneven force or excessive activity of the lumbar spine.

[0037] The pushing assembly includes a driving motor 15, a pushing base 16, a threaded rod 17, a sliding block 18, and a lifting rod 19. The driving motor 15 is fixedly installed on the seat 1. Two parallel pushing bases 16 are rotatably installed on the seat 1. The pushing base 16 is located below the two seat boards 2. A threaded rod 17 is rotatably installed on the pushing base 16. The switching assembly is installed between the threaded rod 17 and the output shaft of the driving motor 15. A sliding block 18 is threadedly connected to the threaded rod 17. The sliding block 18 slides on the pushing base 16. A lifting rod 19 is hinged on the sliding block 18. The other end of the lifting rod 19 is installed on the seat board 2 by means of a hinge seat 23, and the position of the hinge seat 23 is set on the side away from the backrest 3. A connecting piece connected to the lumbar support 5 is provided on the sliding block 18.

[0038] When the office worker uses the smart chair 1, the pushing component pushes the seat plate 2 to flip over. When in use, the driving motor 15 is started. The output shaft of the driving motor 15 rotates and drives the threaded rods 17 on both sides to rotate through the switching component. The rotating threaded rods 17 drive the sliding block 18 threadedly connected thereto to move. Of course, because the sliding block 18 is slidably connected to the pushing base 16, the sliding block 18 will move straight, and the moving sliding block 18 will drive the lifting rod 19 hinged thereon to move to one side, and the other side of the lifting rod 19 is also installed on the seat plate 2 through the hinge seat 23, so the movement of the lifting rod 19 will The seat plate 2 is pushed upward so that the seat plate 2 can be flipped upward. Of course, because the position of the hinged seat 23 is set on the side away from the backrest 3, the rotation of the threaded rod 17 can easily drive the seat plate 2 to flip by pushing the sliding block 18, so that the drive motor 15 only needs to use a smaller power to push the seat plate 2 to flip up and down, reducing the amount of electricity required when using the smart office chair. The up and down flipping of the seat plate 2 can stretch and contract the lumbar spine of the office worker, and massage the lumbar spine of the office worker through stretching and contraction, so that the office worker will not have lumbar pain or lumbar disease when working for a long time.

[0039] The connecting parts include a limit frame 13, a pushing frame 10, a compression spring 33, a pushing rod 11, and a connecting rod 12. The seat 1 is fixedly provided with an inclined limit frame 13, the limit frame 13 is slidably connected to the pushing frame 10, the lumbar support 5 is provided at one end of the pushing frame 10, a compression spring 33 is fixedly provided between the lumbar support 5 and the pushing frame 10, the seat 1 is hinged with the pushing rod 11, the sliding block 18 is fixedly provided with the connecting rod 12, and the other end of the connecting rod 12 is hinged with the pushing rod 11.

[0040] When the sliding block 18 moves to one side, it will drive the connecting rod 12 fixed thereon to move, and the moving connecting rod 12 will push the push rod 11 hinged thereto to move. Because the push rod 11 is hinged on the seat 1, when one end of the push rod 11 is pushed to move to one side, the other end of the push rod 11 will swing in the opposite direction, and the lumbar support 5 is pushed by the swing of the other end of the push rod 11, and the lumbar support 5 is pushed to get closer to the waist of the staff member, and the waist of the staff member is squeezed to provide additional support for the waist. Of course, when the sliding block 18 moves to the other side, the lumbar support 5 is driven to move backward through the connecting rod 12 and the push rod 11. When the lumbar support 5 is against the waist, it can effectively disperse the pressure on the spine and waist muscles and reduce the burden on the lumbar vertebrae. This supporting effect helps to stabilize the lumbar structure and reduce excessive lumbar activity, thereby alleviating pain caused by uneven force or excessive lumbar activity. At the same time, the lumbar support 5 can limit the bending and rotation of the spine through its rigidity and fit. This limiting effect helps to reduce the pressure and stimulation on the lumbar intervertebral disc, thereby alleviating pain caused by lumbar intervertebral disc problems. Of course, the lumbar support 5 returns to its original position after supporting for a certain period of time, which can reduce the fatigue of the lumbar muscles. When maintaining the same posture for a long time or performing heavy physical labor, the lumbar muscles are prone to tension and fatigue. After the lumbar support 5 is removed, it can share part of the muscle burden during its intervention, relieve muscle tension and pain, and promote muscle repair and recovery. The fatigue of the staff's lumbar muscles is reduced by the forward and backward movement of the lumbar support 5 and the up and down movement of the seat 2.

[0041] The switching assembly includes a prismatic telescopic rod 25, a driving bevel gear 26, a driving box 24, a transmission bevel gear 27, a first switching gear 28, a second switching gear 29, a third switching gear 30, a transmission belt 31, and a switching rod 22. The prismatic telescopic rod 25 is installed on the output shaft of the driving motor 15, and the movable end of the prismatic telescopic rod 25 is fixedly installed with the driving bevel gear 26. The seat 1 is installed with a driving box 24, and the driving box 24 is rotatably connected with a transmission bevel gear 27 meshing with the driving bevel gear 26. The driving bevel gear 26 is fixedly installed with a first switching gear 28. Two second switching gears 29 are fixedly installed on the seat 1. The second switching gear 29 is provided with a plurality of transmission bevel gears 27 meshing with the driving bevel gear 26. It is arranged on both sides of the first switching gear 28. When the prismatic telescopic rod 25 moves backward, the first switching gear 28 meshes with the second switching gears 29 on both sides. A third switching gear 30 is fixedly installed on the rotating shaft of the transmission bevel gear 27 on one side. The third switching gear 30 meshes with the second switching gear 29. A transmission belt 31 is installed between the rotating shaft of the transmission bevel gear 27 on the other side and the rotating shaft of the second switching gear 29 on the other side. A switching rod 22 is fixedly installed on the movable end of the prismatic telescopic rod 25. The limiting frame 13 includes a support column 132 fixed on the seat 1 and a limiting ring 131 rotatably connected to the support column 132. The switching rod 22 abuts against the pushing frame 10.

[0042] When the driving motor 15 is operating normally, the output shaft of the driving motor 15 drives the prismatic telescopic rod 25 to rotate. Of course, since the prismatic telescopic rod 25 is a telescopic rod structure, but its movable end is prismatic, the prismatic arrangement enables the prismatic telescopic rod 25 to rotate and move at the same time. The rotating prismatic telescopic rod 25 drives the driving bevel gear 26 fixed thereon to rotate. Since the driving bevel gear 26 is engaged with the transmission bevel gears 27 on both sides, the driving bevel gear 26 rotates, which drives the transmission bevel gear 27 to rotate. The rotating transmission bevel gear 27 drives the threaded rod through the driving box 24 connected thereto. 17 is rotated so that the seat plate 2 can be turned upside down. The front and rear movement of the lumbar support 5 and the up and down movement of the seat plate 2 can reduce the fatigue of the waist muscles of the staff. Some staff members are not used to the front and rear movement of the seat plate 2 to relieve the waist fatigue. At this time, the switching rod 22 is pushed to one side, and the switching rod 22 drives the movable rod of the prismatic telescopic rod 25 to contract, so that the rotating first switching gear 28 is pulled to one side and meshed with the second switching gears 29 on both sides. Because the first switching gear 28 at this time will rotate together with the output shaft of the driving motor 15, the meshed second switching gears 29 are engaged. The switching gear 29 will also rotate accordingly, because the second switching gear 29 on one side is meshed with the third switching gear 30, so the third switching gear 30 on one side will rotate in the opposite direction of the second switching gear 29, that is, it will drive the threaded rod 17 on one side to rotate forward, so that the sliding block 18 moves forward and pushes the seat plate 2 on one side to lift upward. Of course, because there is a transmission belt 31 between the rotating shaft of the transmission bevel gear 27 on the other side and the rotating shaft of the second switching gear 29 on the other side, the second switching gear 29 will drive the rotating shaft of the transmission bevel gear 27 to rotate in the same direction, so that the threaded rod 17 on the other side is reversed. The lumbar support 5 is rotated to the right angle to move the sliding block 18 backward to push the seat plate 2 on one side to flip downward. Of course, it should be noted that when the switching rod 22 moves backward, the lumbar support 5 needs to return to its original position and will not move to one side to press against the operator's waist, ensuring that the lumbar support 5 will not interfere with the up and down swinging of the thighs when the seat plate 2 is flipped up and down. The up and down flipping of the seat plate 2 allows the office worker's thighs to swing up and down, and the swinging of the lower limbs can drive the waist muscles to contract and relax rhythmically. This type of exercise can enhance the strength of the waist muscles to a certain extent, thereby helping to support the lumbar spine and reduce the risk of lumbar injury.

[0043] A leg guard plate 8 is fixedly mounted on the seat 1 , and two leg guard grooves are provided on the leg guard plate 8 , and massage rollers 9 are rotatably connected to inner walls of both sides of the leg guard grooves.

[0044] Of course, if the office worker needs, he can also put his legs into the leg protection groove. When the seat plate 2 is flipped upward, the legs of the worker will be lifted upward. Through the movement of the legs, multiple massage rollers 9 will roll on the calves of the office worker, and the calves of the office worker will be massaged uninterruptedly. The acupuncture points such as Chengshan acupoint on the calf are closely related to the waist. By massaging these acupuncture points, the meridians and nerves related to the waist can be stimulated, thereby relieving the symptoms of low back pain.

[0045] A moving block 32 is slidably connected inside the pushing frame 10 , one end of which is fixedly mounted on the waist support 5 . A threaded hole is provided inside the pushing frame 10 , a long bolt 35 is threadedly connected inside the threaded hole, and one end of the long bolt 35 abuts against the moving block 32 .

[0046] Because each person's body size is different, different people need the position of the lumbar support 5 to be in different states. Therefore, the distance between the moving block 32 and the lumbar support 5 can be adjusted by rotating the long bolt 35. By adjusting the distance, the original position of the lumbar support 5 can be changed. The long bolt 35 is rotated at the same time, so that the long bolt 35 continuously moves in the threaded hole, and the moving block 32 is moved to push the lumbar support 5 to change its position. By changing the different positions of the lumbar support 5, the smart office chair can be suitable for different people.

[0047] The seat plate 2 is provided with two separately arranged vent holes 4, which are respectively arranged on the front and rear sides of the seat plate 2, and air bags 14 are arranged below the vent holes 4. The air bags 14 are connected to the vent holes 4 through pipes, and the front air bags 14 are connected to the rear vent holes 4.

[0048] When the seat plate 2 is flipped up and down, the up and down flipping of the seat plate 2 can resist the air bag 14 below, so that the air bag 14 below can be compressed. When the seat plate 2 is flipped downward, the front air bag 14 is pushed for compression. Because the front air bag 14 is connected to the rear vent 4, and the rear air bag 14 is connected to the front vent 4, the gas will be discharged from the rear vent 4 after the air bag 14 is squeezed. Because the seat plate 2 is flipped downward, the human body keeps leaning forward at this time, so that the gas can be better discharged through the rear vent 4, thereby indirectly improving the comfort of the office worker.

[0049] Two through windows 6 are provided on the backrest 3, and the two through windows 6 are symmetrically arranged. A plurality of pressing rollers 7 are rotatably connected in the through windows 6. Of course, when the office worker leans on the backrest 3 and the seat board 2 below is turned upside down, the human body can also follow the slight up and down swing. Because the waist of the human body leans on the backrest 3, the pressing rollers 7 can reciprocate with the back of the human body. The rotation of the pressing rollers 7 reduces the friction between the back of the human body and the backrest 3, and slightly massages the back. At the same time, the pressing rollers 7 are located on both sides of the back to avoid direct contact with the lumbar spine, thereby improving the comfort of the office chair when in use.

[0050] When in use, the office worker needs to sit on the seat 2 first, and then start the massage function of the office chair. The internal system of the office chair starts the drive motor 15, and the output shaft of the drive motor 15 drives the prismatic telescopic rod 25 to rotate. The rotating prismatic telescopic rod 25 drives the drive bevel gear 26 fixed thereon to rotate. Because the drive bevel gear 26 is engaged with the transmission bevel gears 27 on both sides, the rotation of the drive bevel gear 26 will drive the transmission bevel gear 27 to rotate. The rotating transmission bevel gear 27 drives the threaded rod 17 to rotate through the drive box 24 connected thereto, so that the seat 2 can be flipped up and down.

[0051] The threaded rod 17 rotating in the forward direction drives the sliding block 18 threadedly connected thereon to move. Of course, because the sliding block 18 is slidably connected to the pushing base 16, the sliding block 18 will move straight, and the moving sliding block 18 will drive the lifting rod 19 hinged thereon to move to the front side, and the other side of the lifting rod 19 is also installed on the seat plate 2 through the hinge seat 23, so the movement of the lifting rod 19 by the pushing rod 11 will push the seat plate 2 upward, so that the seat plate 2 can be flipped upward. Of course, because the position of the hinge seat 23 is set on the side away from the backrest 3, the rotation of the threaded rod 17 can easily drive the seat plate 2 to flip by pushing the sliding block 18.

[0052] Of course, if the driving motor 15 rotates in the reverse direction, the threaded rod 17 will drive the sliding block 18 threaded thereon to move in the reverse direction, and the moving sliding block 18 will drive the lifting rod 19 hinged thereon to move to the rear side, and the other side of the lifting rod 19 of the push rod 11 is also installed on the seat plate 2 through the hinge seat 23, so the movement of the lifting rod 19 will flip the seat plate 2 downward.

[0053] At the same time, when the sliding block 18 moves to one side, it will drive the connecting rod 12 fixed thereon to move, and the moving connecting rod 12 will push the pushing rod 11 hinged thereto to move. Because the pushing rod 11 is hinged on the seat 1, when one end of the pushing rod 11 is pushed to move to one side, the other end of the pushing rod 11 will swing in the opposite direction, and the lumbar support 5 is pushed by the swing of the other end of the pushing rod 11, and the lumbar support 5 is pushed to get closer to the waist of the staff member, and the waist of the staff member is squeezed to provide additional supporting force for the waist of the staff member. Of course, when the sliding block 18 moves to the other side, the lumbar support 5 is driven to move backward through the connecting rod 12 and the pushing rod 11.

[0054] At the same time, when the seat board 2 is flipped upward, the legs of the staff will be lifted up. Through the movement of the legs, multiple massage rollers 9 will roll on the calves of the office staff, and the calves of the office staff will be massaged uninterruptedly. When the seat board 2 is flipped up and down, the up and down flipping of the seat board 2 can resist the air bag 14 below, so that the air bag 14 below can be compressed. When the seat board 2 is flipped downward, the front air bag 14 is pushed for compression. Because the front air bag 14 is connected to the rear vent 4, and the rear air bag 14 is connected to the front vent 4, the gas will be discharged from the rear vent 4 after the air bag 14 is squeezed. Because the seat board 2 is flipped downward, the human body remains in a forward leaning state at this time, so that the gas can be better discharged through the rear vent 4.

[0055] When the seat board 2 below is flipped up and down, the human body can also swing slightly up and down. Because the waist of the human body rests on the backrest 3, the pressing roller 7 can reciprocate with the back of the human body. The rotation of the pressing roller 7 reduces the friction between the back of the human body and the backrest 3, and the back is slightly massaged.

[0056] The fatigue of the staff's waist muscles can be relieved by the forward and backward movement of the waist support 5 and the up and down movement of the seat plate 2. When some staff members are not used to the relief of the waist by the forward and backward movement of the seat plate 2, they push the switching rod 22 to one side, and the switching rod 22 drives the movable rod of the prismatic telescopic rod 25 to contract, so that the rotating first switching gear 28 is pulled to one side and meshes with the second switching gears 29 on both sides. Because the first switching gear 28 at this time will rotate with the output shaft of the driving motor 15, the meshed second switching gear 29 will also rotate. Because the second switching gear 29 on one side is meshed with the third switching gear 30, the third switching gear 30 on one side will rotate in the opposite direction of the second switching gear 29, that is, it drives The threaded rod 17 on one side rotates forward, causing the sliding block 18 to move forward and push the seat plate 2 on one side to lift up. Of course, because there is a transmission belt 31 between the transmission bevel gear 27 shaft on the other side and the second switching gear 29 shaft on the other side, the second switching gear 29 will drive the transmission bevel gear 27 shaft to rotate in the same direction, causing the threaded rod 17 on the other side to rotate in the opposite direction, causing the sliding block 18 to move backward and push the seat plate 2 on one side to flip downward. Of course, it should be noted that when the switching rod 22 moves backward, the lumbar support 5 needs to return to its original position and will not move to one side to press against the operator's waist, ensuring that the lumbar support 5 will not interfere with the up and down swinging of the thighs when the seat plate 2 is flipped up and down, and the office worker's thighs can swing up and down by flipping the seat plate 2 up and down.

[0057] The above is a detailed description of a specific implementation of an ergonomic smart office chair of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the implementation described above. For those skilled in the art, various changes, modifications, substitutions and variations of these implementations without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. An intelligent office chair based on ergonomics, comprising a seat (1), a seat plate (2) being mounted on the seat (1), a backrest (3) being fixedly mounted on the rear side of the seat (1), characterized in that: The seat (2) is provided with two seats, a rotating seat (21) is fixedly installed in the middle position of the seat (2), a limit rod (20) is fixedly installed on the seat (1), the rotating seat (21) is rotatably connected to the limit rod (20), a lumbar support (5) is slidably connected to the seat (1), and the lumbar support (5) is located below the backrest (3), and a pushing component is installed on the seat (1), one side of the pushing component is connected to the seat (2), and the other side is connected to the lumbar support (5), when the pushing component pushes the seat (2) to flip downward, the pushing component pushes the lumbar support (5) to move to one side to press against the waist of the office worker, and when the pushing component pushes the seat (2) to flip upward, the lumbar support (5) moves to the other side away from the waist of the office worker, and a switching component is installed on the seat (1), the switching component switches the pushing mode of the pushing component, so that the lumbar support (5) returns to its original position, and the pushing component pushes the two seat plates (2) to flip in two different directions respectively.

2. The ergonomically designed smart office chair according to claim 1, characterized in that The pushing assembly comprises a driving motor (15), a pushing base (16), a threaded rod (17), a sliding block (18), a lifting rod (19), and a hinge seat (23). The driving motor (15) is fixedly mounted on the seat (1). Two parallel pushing bases (16) are rotatably mounted on the seat (1). The pushing base (16) is located below the two seat plates (2). A threaded rod (17) is rotatably mounted on the pushing base (16). The switching assembly is mounted on the threaded rod ( 17) and the output shaft of the driving motor (15), a sliding block (18) is threadedly connected to the threaded rod (17), the sliding block (18) slides on the pushing base (16), a lifting rod (19) is hinged on the sliding block (18), the other end of the lifting rod (19) is installed on the seat plate (2) through a hinge seat (23), and the position of the hinge seat (23) is set on the side away from the backrest (3), and a connecting piece connected to the lumbar support (5) is provided on the sliding block (18).

3. The ergonomically-based intelligent office chair according to claim 2, characterized in that The connecting member comprises a limit frame (13), a pushing frame (10), a compression spring (33), a pushing rod (11), and a connecting rod (12); a limit frame (13) arranged in an inclined manner is fixedly installed on the seat (1); the limit frame (13) is slidably connected to the pushing frame (10); the lumbar support (5) is arranged at one end of the pushing frame (10); a compression spring (33) is fixedly installed between the lumbar support (5) and the pushing frame (10); a pushing rod (11) is hingedly connected to the seat (1); one end of the pushing rod (11) is in contact with the pushing frame (10); a connecting rod (12) is fixedly installed on the sliding block (18); the other end of the connecting rod (12) is hingedly connected to the pushing rod (11).

4. The ergonomically-based intelligent office chair according to claim 3, characterized in that The switching assembly comprises a prismatic telescopic rod (25), a driving bevel gear (26), a driving box (24), a transmission bevel gear (27), a first switching gear (28), a second switching gear (29), a third switching gear (30), a transmission belt (31), and a switching rod (22); the prismatic telescopic rod (25) is mounted on the output shaft of the driving motor (15); the driving bevel gear (26) is fixedly mounted on the movable end of the prismatic telescopic rod (25); the driving box (24) is mounted on the seat (1); the driving box (24) is rotatably connected to a transmission bevel gear (27) meshing with the driving bevel gear (26); the driving bevel gear (26) is fixedly mounted with a first switching gear (28); the seat (1) is fixedly mounted with two second switching gears (29); the second switching gear ( 29) are arranged on both sides of the first switching gear (28), when the prism telescopic rod (25) moves backward, the first switching gear (28) meshes with the second switching gears (29) on both sides, a third switching gear (30) is fixedly installed on the rotating shaft of the transmission bevel gear (27) on one side, the third switching gear (30) meshes with the second switching gear (29), a transmission belt (31) is installed between the rotating shaft of the transmission bevel gear (27) on the other side and the rotating shaft of the second switching gear (29) on the other side, a switching rod (22) is fixedly installed on the movable end of the prism telescopic rod (25), the limiting frame (13) comprises a support column (132) fixed on the seat (1) and a limiting ring (131) rotatably connected to the support column (132), and the switching rod (22) abuts against the pushing frame (10).

5. The ergonomically-based intelligent office chair according to claim 4, characterized in that A leg guard (8) is fixedly mounted on the seat (1), and two leg guard grooves are provided on the leg guard (8). Massage rollers (9) are rotatably connected to the inner walls of both sides of the leg guard grooves.

6. The ergonomically intelligent office chair according to claim 5, characterized in that A moving block (32) is slidably connected inside the pushing frame (10), one end of the moving block (32) is fixedly mounted on the waist support (5), a threaded hole is opened inside the pushing frame (10), a long bolt (35) is threadedly connected inside the threaded hole, and one end of the long bolt (35) is in contact with the moving block (32).

7. The ergonomically-based intelligent office chair according to claim 6, characterized in that The seat plate (2) is provided with two separately arranged vent holes (4), the vent holes (4) are respectively arranged on the front and rear sides of the seat plate (2), and air bags (14) are arranged below the vent holes (4), the air bags (14) are connected to the vent holes (4) through pipes, and the front air bags (14) are connected to the rear vent holes (4).

8. The ergonomically-based intelligent office chair according to claim 7, characterized in that The backrest (3) is provided with two through windows (6), the two through windows (6) are symmetrically arranged with respect to each other, and a plurality of pressing rollers (7) are rotatably connected in the through windows (6).

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