Posture correcting and self-reminding office chair for office

Abstract

The invention discloses an office posture correcting self-reminding office chair, and belongs to the field of office chairs, the office posture correcting self-reminding office chair comprises a support, a seat plate is fixedly mounted on the support, a backup plate is hinged to one side of the seat plate, a leg plate is mounted on the lower surface of the side, away from the backup plate, of the seat plate, a center groove is formed in the middle of the backup plate, and a first winding roller is rotatably mounted at the upper end of the interior of the center groove; a second winding roller is rotatably mounted at the lower end of the interior of the center groove, elastic cloth is wound on the outer surfaces of the first winding roller and the second winding roller, a reminding part is slidably mounted in the center groove, a correcting part is arranged in the center groove, and the correcting part can be automatically stored when the backup plate is put down through arrangement of the correcting part; when the backup plate is lifted, the correcting part can be automatically converted into a working state and can be matched with the reminding part to generate correcting and reminding effects, so that the chair can be used as a correcting chair and can also be used as a rest bed.

Description

Technical Field

[0001] The invention relates to the field of office chairs, and more particularly to an office chair with a posture-correcting self-reminding function. Background Art

[0002] When working in the office, employees often need to sit at their workstations for a long time. When working for a long time, they will unconsciously lean forward and have incorrect sitting postures such as bending over and tilting their heads. Lowering the head for a long time will cause flexion of the cervical spine and increase the pressure on the cervical intervertebral disc, which can easily lead to cervical spondylosis. Cervical spondylosis can not only cause neck pain and stiffness, but may also affect blood supply to the brain, leading to symptoms such as headaches and dizziness. When bending over to work, the pressure on the lumbar intervertebral disc will also increase. Doing this for a long time can easily lead to problems such as lumbar disc herniation and lumbar muscle strain.

[0003] The invention patent with publication number CN116491779A provides an office chair with self-reminding posture correction function. The patent has a lumbar support on the backrest, which means that the device can only be used as a correction chair and the backrest cannot be laid flat because the lumbar support will bulge after laying it flat, causing discomfort to the user.

[0004] In view of this, in view of the above-mentioned deficiencies, the present invention improves and optimizes the office chair in the prior art and develops an office chair with a correct posture self-reminding function. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an office chair with self-reminding posture correction, which can be laid flat and used as a nap bed, and can drive the correction components thereon to retract when laid flat. The correction components do not work when laid flat, and can work again when the device is lifted up to be used as a correction chair.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An office chair for self-reminding correct posture for office use, comprising a bracket, a seat plate fixedly mounted on the bracket, a backing plate hingedly mounted on one side of the seat plate, a leg plate mounted on the lower surface of the side of the seat plate away from the backing plate, a central groove is provided in the middle of the backing plate, a first winding roller is rotatably mounted on the upper end of the central groove, a second winding roller is rotatably mounted on the lower end of the central groove, elastic fabrics are wound on the outer surfaces of the first winding roller and the second winding roller, a reminder component is slidably mounted on the inside of the central groove, and a correction component is arranged inside the central groove;

[0008] The outer walls of both sides of the back plate are penetrated by a first slide groove, and the inner positions on both sides of the back plate corresponding to the first slide grooves are provided with second slide grooves. The correction component includes a plurality of connecting joints, and the plurality of connecting joints are hinged in sequence. Second sliders are rotatably installed on both sides of the two connecting joints at the end, and retractable components for changing the state of the correction component are provided under both sides of the back plate.

[0009] Furthermore, the retractable component includes a support rod, a sleeve rod is rotatably mounted on the support rod, a rotating part is rotatably mounted on the end of the sleeve rod away from the support rod, a threaded rod is slidably clamped inside the sleeve rod, the threaded rod is clamped in the middle part of the rotating part through threaded cooperation, a rotating rod is rotatably mounted on the end of the threaded rod away from the rotating part, the rotating rod is rotatably mounted on the side surface of a second slider on the upper side, and the second slider is slidably clamped inside the second slide groove.

[0010] Furthermore, the first slide groove is provided with a plurality of evenly distributed first slots, and a detachable sliding card inside the first slot is provided with an inserting plate, and the inserting plate extends to the inside of the second slide groove.

[0011] Furthermore, the reminder component includes a support frame, a support plate is fixedly installed on one side of the lower end of the support frame, a cavity corresponding to the support frame is opened on the inner wall of the central groove, the end of the support frame is slidably clamped inside the cavity, a return spring is connected between the support frame and the cavity, and a plurality of evenly distributed sound-emitting components are fixedly installed on the lower surfaces of the support frame and the support plate.

[0012] Furthermore, the sound-emitting component includes a swing spring, a metal ball is fixedly installed at the lower end of the swing spring, the swing spring is fixedly installed at the corresponding support frame and the lower end of the support plate, a fixing frame is fixedly installed at a position inside the central groove corresponding to the reminder component, and a magnetic strip is fixedly installed on the side of the fixing frame close to the reminder component.

[0013] Furthermore, side connecting plates are fixedly installed on both sides of one end of the seat plate close to the back plate, the support rod is fixedly installed on the side connecting plate, and a first ratchet is rotatably installed on the sides of the two side connecting plates away from each other, the first ratchet passes through the side connecting plate and is fixedly installed on the bottom end of the back plate, a matching sleeve is provided on the side of the first ratchet away from the side connecting plate, the matching sleeve is slidably installed on the side surface of the side connecting plate, a connecting frame is slidably installed on the side of the side connecting plate close to the matching sleeve, one end of the connecting frame is fixedly installed on the matching sleeve, and the interior of the matching sleeve has a first tooth for cooperating with the first ratchet.

[0014] Furthermore, gears are rotatably installed at positions corresponding to the second winding roller on both sides of the back plate, the middle part of the gear passes through the back plate and is fixedly installed on the end of the second winding roller, and the side connecting plate is provided with evenly distributed tooth grooves, and the gear is meshed with the tooth grooves.

[0015] Furthermore, one side of the leg plate is provided with two mutually symmetrical T-slots, and the first sliding block is provided with an internal sliding card of the T-slot, and the lower surface of the first sliding block is fixedly installed with a first sliding rod, and the lower end of the first sliding rod is hinged with a second sliding rod, and the first sliding rod and the second sliding rod are both slidably carded inside the T-slot, and the lower surface of the side connecting plate is slidably installed with two first connecting rods corresponding to the T-slots, and the lower end of the side of the back plate away from the seat plate is fixedly installed with two second connecting rods corresponding to the first connecting rod, and one end of the second connecting rod away from the back plate is rotatably installed in the end of the ratchet cavity, and one end of the first connecting rod away from the second connecting rod is rotatably installed on the first sliding block, and a plurality of U-shaped rods are fixedly installed on the upper end of the side of the leg plate close to the T-slot, and the end of the U-shaped rod away from the leg plate is rotatably installed on the lower surface of the seat plate.

[0016] Furthermore, a ratchet cavity is opened at the position corresponding to the support plate and the first winding roller, and a second ratchet is fixedly installed at both ends of the first winding roller. The second ratchet is located inside the ratchet cavity, and the inside of the ratchet cavity has a plurality of second teeth corresponding to the second ratchet. The second ratchet extends from one end of the first winding roller to the outside of the support plate and is fixedly installed with a turning handle.

[0017] Furthermore, a pedal is fixedly installed on one side of the bracket away from the back plate, and two slots corresponding to the second slide bar are provided on the upper surface of the pedal. Two symmetrical supporting feet are rotatably installed on one side of the back plate away from the seat plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This solution provides a correction component so that the correction component can be automatically stored when the backrest is laid down to prevent bulges from occurring when lying down and causing discomfort to the user. When the backrest is raised, the correction component can automatically switch to a working state and cooperate with the reminder component to produce correction and reminder effects, so that it can be used as both a correction chair and a rest bed.

[0020] 2. The device is provided with a retractable component, which can not only be used to change the retraction and extension of the correction component, but also to change the height of the correction component and the protrusion degree of the correction component, so as to facilitate adaptation to different groups of people.

[0021] 3. This solution provides a leg board, which can be lifted when the backrest is laid down to provide a larger resting space. After the backrest is laid down, the second slide bar and the supporting feet can provide stable support to prevent the device from tipping over due to unstable center of gravity during rest.

[0022] 4. This solution sets a first winding roller. When the tightness of the elastic fabric decreases, the handle can be turned, and the handle drives the second ratchet to rotate. The second ratchet drives the first winding roller to rotate to wind up the elastic fabric, and the second latch can also prevent the first winding roller from reversing, so that the elastic fabric can always be in a tightened state. The elasticity of the elastic fabric can give the user a more comfortable backrest effect, and can also increase air permeability, so that it will not feel stuffy even after working for a long time. The first winding roller and the second winding roller can always ensure the tightness of the elastic fabric, and the tightness of the elastic fabric can be adjusted by turning the handle, making the device more comfortable.

[0023] 5. In this solution, when the user adopts a bad sitting posture such as bending over or tilting the head, the reminder component can make a sound to remind the user, thereby preventing the user from unconsciously using the wrong sitting posture to work for a long time. When the user changes to the correct sitting posture, the reminder component will immediately stop making the sound, thereby reminding the user to maintain the correct sitting posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of the first-view of the office chair with self-correcting posture reminder for office use of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the second viewing angle of the office posture correcting self-reminding office chair of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the self-correcting posture reminding office chair from a third viewing angle of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the seat plate in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the backing plate in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure inside the central groove of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the correction component in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the reminder component in the present invention;

[0032] Fig. 9 It is a partial cutaway view of the backing plate in the present invention;

[0033] Fig.10 It is a structural schematic diagram of the leg plate in the present invention;

[0034] Fig.11 It is a schematic diagram of the structure of the pedal in the present invention.

[0035] Description of the numbers in the figure:

[0036] 1. Bracket; 2. Seat plate; 3. Back plate; 4. Leg plate; 5. Correction component; 6. Reminder component; 7. Sounding component; 8. Pedal; 21. Side connecting plate; 22. First ratchet; 23. Matching sleeve; 24. Connecting frame; 25. Tooth groove; 30. Center groove; 31. First slide groove; 32. First slot; 33. Insert plate; 34. Support rod; 35. Sleeve rod; 36. Rotating part; 37. Threaded rod; 38. First winding roller; 39. Second winding roller; 41. T-slot; 42. U-shaped rod; 43. First A slider; 44, a first slide bar; 45, a second slide bar; 51, a connecting joint; 52, a second slider; 61, a support frame; 62, a support plate; 63, a fixing frame; 64, a magnetic strip; 65, a return spring; 71, a swing spring; 72, a metal ball; 81, a slot; 211, a first connecting rod; 301, an elastic cloth; 311, a ratchet cavity; 312, a supporting foot; 313, a second slide groove; 314, a second connecting rod; 371, a rotating rod; 381, a second ratchet; 382, ​​a turning handle; 391, a gear. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 11, an office chair for automatically reminding the correct posture for office use, comprising a bracket 1, a seat plate 2 is fixedly installed on the bracket 1, a back plate 3 is hingedly connected to one side of the seat plate 2, a leg plate 4 is installed on the lower surface of the seat plate 2 away from the back plate 3, a central groove 30 is opened in the middle of the back plate 3, a first winding roller 38 is rotatably installed on the upper end of the inner part of the central groove 30, a second winding roller 39 is rotatably installed on the lower end of the inner part of the central groove 30, and elastic cloth 301 is wound on the outer surfaces of the first winding roller 38 and the second winding roller 39, a reminder component 6 is slidably installed inside the central groove 30, a correction component 5 is arranged inside the central groove 30, first slide grooves 31 are penetrated through the outer walls of both sides of the back plate 3, second slide grooves 313 are opened at the positions corresponding to the first slide grooves 31 on both sides of the back plate 3, the correction component 5 includes a plurality of connecting joints 51, the plurality of connecting joints 51 are hinged in sequence, and second sliders 52 are rotatably installed on both sides of the two connecting joints 51 at the end, and a retractable component for changing the state of the correction component 5 is arranged below both sides of the back plate 3.

[0039] When working in the office, employees often need to sit at their workstations for a long time. When working for a long time, they will unconsciously lean forward and have incorrect sitting postures such as bending over and tilting their heads. Lowering the head for a long time will cause flexion of the cervical spine and increase the pressure on the cervical intervertebral disc, which can easily lead to cervical spondylosis. Cervical spondylosis can not only cause neck pain and stiffness, but may also affect blood supply to the brain, leading to symptoms such as headaches and dizziness. When bending over to work, the pressure on the lumbar intervertebral disc will also increase. Doing this for a long time can easily lead to problems such as lumbar disc herniation and lumbar muscle strain.

[0040] Therefore, the present device is designed to prevent the harm caused to employees by bad sitting postures, and the correction component 5 and the reminder component 6 are developed. When in use, the user sits on the seat plate 2, and then presses the buttocks and shoulders against the backrest 3. At this time, the correction component 5 can support the user's waist, which is the correct sitting posture. When the user has bad sitting postures such as bending over or tilting the head, the reminder component 6 can make a sound to remind the user, thereby preventing the user from unconsciously using the wrong sitting posture for a long time to work. When the user changes to the correct sitting posture, the reminder component 6 will immediately stop making a sound, thereby reminding the user to maintain the correct sitting posture.

[0041] The folding and unfolding parts include a support rod 34, and side connecting plates 21 are fixedly installed on both sides of one end of the seat plate 2 close to the back plate 3. The support rod 34 is fixedly installed on the side connecting plate 21. A sleeve rod 35 is rotatably installed on the support rod 34, and a rotating member 36 is rotatably installed on the end of the sleeve rod 35 away from the support rod 34. A threaded rod 37 is provided inside the sleeve rod 35 for sliding. The threaded rod 37 is clamped in the middle of the rotating member 36 through threaded cooperation. A rotating rod 371 is rotatably installed on the end of the threaded rod 37 away from the rotating member 36. The rotating rod 371 is rotatably installed on the side surface of the second slider 52 on the upper side. The second slider 52 is slidably clamped in the inside of the second slide groove 313. A plurality of evenly distributed first slots 32 are opened on the first slide groove 31. A plug plate 33 is detachably slidingly clamped inside the first slot 32, and the plug plate 33 extends to the inside of the second slide groove 313.

[0042] When the device is in use, the backrest 3 is first laid down so that the backrest 3 and the seat plate 2 are in the same horizontal plane, so that the user can lie on it and use it as a nap bed. During the process of laying down the backrest 3, the sleeve rod 35, the rotating member 36 and the threaded rod 37 will push the rotating rod 371 to rise, and the rotating rod 371 will push the two second sliders 52 above to rise, and then the multiple connecting joints 51 will rotate until the multiple connecting joints 51 are stretched into a horizontal state. At this time, the correction component 5 becomes a horizontal state, and then as the backrest 3 is laid down, the correction component 5 can be automatically retracted. When the backrest 3 is lifted, the sleeve rod 35, the rotating member 36, and the threaded rod 37 can pull the rotating rod 371, and then the rotating rod 371 pulls the two second sliders 52 above to descend. At this time, the multiple connecting joints 51 rotate to form an arched shape, and can be used as a lumbar pillow.

[0043] The device is provided with a correction component 5 so that the correction component 5 can be automatically retracted when the backrest 3 is laid down to prevent bulges from causing discomfort to the user when lying down, and when the backrest 3 is raised, the correction component 5 can automatically change to a working state and cooperate with the reminder component 6 to produce correction and reminder effects.

[0044] Because the needs of users are different, the requirements for the position of the correction component 5 are also different. At this time, it is necessary to change the position of the correction component 5 to adapt to various different needs. When adjusting, you only need to rotate the rotating member 36 to make the threaded rod 37 extend and retract. When the threaded rod 37 is lifted, it will drive the two second sliders 52 above to rise, pull out the plug plate 33, and then lift the bottom of the correction component 5 by hand to drive the two second sliders 52 below to rise. Then, reinsert the plug plate 33 into the corresponding first slot 32, which can provide support for the two second sliders 52 below, thereby improving the overall position of the correction component 5. Because of the different body shapes, the protrusion degree of the correction component 5 has different effects on comfort. By rotating the rotating member 36 to extend the threaded rod 37, the two second sliders 52 above can be driven to rise, thereby reducing the protrusion degree of the correction component 5. Conversely, the contraction of the threaded rod 37 will increase the protrusion degree of the correction component 5.

[0045] Therefore, the device is provided with a retractable component, which can not only be used to change the retraction and extension of the correction component 5, but also can change the height of the correction component 5 and the protrusion degree of the correction component 5, so as to facilitate adaptation to various different needs.

[0046] The reminder component 6 includes a support frame 61, a support plate 62 is fixedly installed on one side of the lower end of the support frame 61, a chamber corresponding to the support frame 61 is opened on the inner wall of the central groove 30, the end of the support frame 61 is slidably clamped inside the chamber, a reset spring 65 is connected between the support frame 61 and the chamber, a plurality of evenly distributed sound-generating components 7 are fixedly installed on the lower surfaces of the support frame 61 and the support plate 62, the sound-generating component 7 includes a swing spring 71, a metal ball 72 is fixedly installed on the lower end of the swing spring 71, the swing spring 71 is fixedly installed on the corresponding support frame 61 and the lower end of the support plate 62, a fixing frame 63 is fixedly installed at a position inside the central groove 30 corresponding to the reminder component 6, and a magnetic strip 64 is fixedly installed on the side of the fixing frame 63 close to the reminder component 6.

[0047] When the user is in a correct sitting posture, the user's waist should be close to the correction component 5, and the shoulder should be against the position of the reminder component 6. Because the elastic cloth 301 is elastic, the reminder component 6 will be pushed due to the pressure, and the support frame 61 will be pushed to move, and the sound component 7 will be driven to move. When the reminder component 6 is pushed to the maximum position, the sound component 7 under the support plate 62 is located on one side of the magnetic strip 64. The material of the metal ball 72 is magnetic metal, and then when the metal ball 72 is close to the magnetic strip 64, it will be attracted by the magnetic strip 64. At this time, the reset spring 65 is compressed. When the user bends over or makes other incorrect sitting postures, the reminder component 6 loses pressure, and the reset spring 65 is compressed. 5 pushes the support frame 61 to move. At this time, the metal balls 72 under the support plate 62 will still be attracted by the magnetic strip 64, and the swing spring 71 will undergo elastic deformation until the force generated by the swing spring 71 exceeds the maximum pulling force of the magnetic strip 64. At this time, the metal balls 72 generate instantaneous force, and then the metal balls 72 under the support plate 62 will impact the metal balls 72 under the support frame 61, thereby making a sound. Due to the impact force, the two groups of metal balls 72 will continue to collide and rebound, and then collide again to make a continuous sound to remind the user that the sitting posture is wrong. If the user sits up immediately at this time, the elastic cloth 301 will push the reminder component 6 again, so that the collision between the two groups of metal balls 72 disappears, and then the sound stops immediately.

[0048] A first ratchet 22 is rotatably installed on the side of the two side connecting plates 21 away from each other. The first ratchet 22 penetrates the side connecting plate 21 and is fixedly installed on the bottom end of the support plate 3. A matching sleeve 23 is provided on the side of the first ratchet 22 away from the side connecting plate 21. The matching sleeve 23 is slidably installed on the side surface of the side connecting plate 21. A connecting frame 24 is slidably installed on the side of the side connecting plate 21 close to the matching sleeve 23. One end of the connecting frame 24 is fixedly installed on the matching sleeve 23. The interior of the matching sleeve 23 has a first tooth used in conjunction with the first ratchet 22.

[0049] When the back plate 3 needs to be laid flat, it is only necessary to press down the connecting frame 24, which drives the matching sleeve 23 to descend and the connecting frame 24 loses its effect on the first ratchet 22. At this time, the back plate 3 can drive the first ratchet 22 to rotate, and a spring is installed between the connecting frame 24 and the side connecting plate 21 to reset the connecting frame 24. When the back plate 3 is rotated to a suitable position, it is only necessary to loosen the connecting frame 24. At this time, the connecting frame 24 rises and resets under the action of the spring, and the connecting frame 24 will drive the matching sleeve 23 to rise and re-jam the matching sleeve 23, so that the first ratchet 22 and the back plate 3 cannot rotate.

[0050] Gears 391 are rotatably installed at positions corresponding to the second winding roller 39 on both sides of the back plate 3. The middle part of the gear 391 passes through the back plate 3 and is fixedly installed on the end of the second winding roller 39. Evenly distributed tooth grooves 25 are opened on the side connecting plate 21, and the gear 391 meshes with the tooth grooves 25.

[0051] During use, when the backrest 3 is laid flat, the tightness of the elastic fabric 301 will be reduced because the protrusion of the correction component 5 is reduced, which will lead to insufficient support force when the user lies down and reduce comfort. Therefore, the device is provided with a gear 391. When the backrest 3 rotates, the gear 391 will be driven to rotate around the side connecting plate 21. When the gear 391 rotates around the side connecting plate 21, the side connecting plate 21 will be driven to rotate due to the tooth groove 25, and then the gear 391 drives the second winding roller 39 to rotate. The rotation of the second winding roller 39 can wind up the elastic fabric 301. Regardless of the status of the correction component 5 and the backrest 3, the elastic fabric 301 can always be kept in a tightened state, thereby providing a reliable lifting effect and making the user more comfortable.

[0052] One side of the leg plate 4 is provided with two symmetrical T-slots 41, a first slider 43 is slidably mounted inside the T-slot 41, a first slide bar 44 is fixedly mounted on the lower surface of the first slide bar 43, a second slide bar 45 is hinged at the lower end of the first slide bar 44, the first slide bar 44 and the second slide bar 45 are both slidably mounted inside the T-slot 41, two first connecting rods 211 corresponding to the T-slot 41 are slidably mounted on the lower surface of the side connecting plate 21, and two second connecting rods 314 corresponding to the first connecting rod 211 are fixedly mounted on the lower end of the side of the back plate 3 away from the seat plate 2, and the second connecting rods 314 corresponding to the first connecting rod 211 are fixedly mounted. One end of the connecting rod 314 away from the back plate 3 is rotatably mounted on the end of the ratchet chamber 311, one end of the first connecting rod 211 away from the second connecting rod 314 is rotatably mounted on the first slider 43, a plurality of U-shaped rods 42 are fixedly mounted on the upper end of the leg plate 4 close to the T-slot 41, one end of the U-shaped rod 42 away from the leg plate 4 is rotatably mounted on the lower surface of the seat plate 2, a pedal 8 is fixedly mounted on the side of the bracket 1 away from the back plate 3, two slots 81 corresponding to the second slider 45 are provided on the upper surface of the pedal 8, and two symmetrical supporting feet 312 are rotatably mounted on the side of the back plate 3 away from the seat plate 2.

[0053] When the back plate 3 is laid down, the second connecting rod 314 is driven to rotate, and when the second connecting rod 314 rotates, it can push the first connecting rod 211, and the first connecting rod 211 will push the first sliding block 43 to slide along the T-slot 41, and the first connecting rod 211 is slidably installed on the lower surface of the seat plate 2, so the leg plate 4 will be pushed to rotate around the U-shaped rod 42. When the back plate 3 is completely laid down, the leg plate 4 is pushed to the same horizontal position as the seat plate 2. At this time, the seat plate 2, the back plate 3, and the leg plate 4 are in the same horizontal position, thereby forming a nap bed. When the first sliding block 43 slides along the inside of the T-slot 41, the first sliding bar 44 is pushed synchronously. When the first sliding block 43 moves to the bottom of the T-slot 41, the hinge of the first sliding bar 44 and the second sliding bar 45 just moves When the backrest 3 is laid down, the supporting foot 312 can rotate to a vertical position, thereby providing a stable support. When the backrest 3 is laid down, the supporting foot 312 can rotate to a vertical position, thereby providing a stable support. When the backrest 3 is laid down, the supporting foot 312 can rotate to a vertical position, thereby providing a stable support. When the backrest 3 is laid down, the supporting foot 312 can drive the leg board 4 to be lifted when the backrest 3 is laid down, thereby providing a larger resting space. After the backrest 3 is laid down, the second sliding bar 45 and the supporting foot 312 can provide a stable support, thereby reducing the stress on the first connecting rod 211, and can provide a stable support at the end of the device, thereby preventing the device from tipping over due to an unstable center of gravity during rest, thereby providing a stable support and increasing comfort.

[0054] A ratchet cavity 311 is opened at the position corresponding to the support plate 3 and the first winding roller 38, and a second ratchet 381 is fixedly installed at both ends of the first winding roller 38. The second ratchet 381 is located inside the ratchet cavity 311. The ratchet cavity 311 has a plurality of second teeth corresponding to the second ratchet 381. One end of the second ratchet 381 away from the first winding roller 38 extends to the outside of the support plate 3 and is fixedly installed with a turning handle 382.

[0055] When the protrusion degree of the correction component 5 is changed, the tightness of the elastic fabric 301 will also be changed, which will lead to the comfort of the user, and when the elastic fabric 301 is used for a long time, its tightness will also decrease. Then, the device is provided with a first winding roller 38. When the tightness of the elastic fabric 301 decreases, the turning handle 382 can be turned, and the turning handle 382 drives the second ratchet 381 to rotate, and the second ratchet 381 drives the first winding roller 38 to rotate to wind up the elastic fabric 301, and the second latch tooth can also prevent the first winding roller 38 from reversing, so that the elastic fabric 301 can always be in a tightened state. The elastic fabric 301 has elasticity and can provide the user with a more comfortable backrest effect, and can also increase air permeability, so that it will not be stuffy even if working for a long time. The first winding roller 38 and the second winding roller 39 can always ensure the tightness of the elastic fabric 301, and the tightness of the elastic fabric 301 can be adjusted by turning the turning handle 382, ​​making the device more comfortable.

[0056] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An office chair with a posture-correcting self-reminding function, comprising a support (1), characterized in that: A seat plate (2) is fixedly mounted on the bracket (1), a backing plate (3) is hingedly mounted on one side of the seat plate (2), a leg plate (4) is mounted on the lower surface of the seat plate (2) away from the backing plate (3), a central groove (30) is provided in the middle of the backing plate (3), a first winding roller (38) is rotatably mounted on the upper end of the center groove (30), a second winding roller (39) is rotatably mounted on the lower end of the center groove (30), elastic cloth (301) is wound on the outer surfaces of the first winding roller (38) and the second winding roller (39), a reminder component (6) is slidably mounted inside the center groove (30), and a correction component (5) is provided inside the center groove (30); The outer walls of both sides of the backing plate (3) are provided with first sliding grooves (31) running through them, and the inner parts of both sides of the backing plate (3) are provided with second sliding grooves (313) at positions corresponding to the first sliding grooves (31); The correction component (5) comprises a plurality of connection joints (51), the plurality of connection joints (51) are hinged in sequence, and second sliders (52) are rotatably mounted on both sides of two connection joints (51) at the end, and retractable components for changing the state of the correction component (5) are provided below both sides of the support plate (3).

2. The office chair with self-correcting posture reminder according to claim 1, characterized in that: The retractable component comprises a support rod (34), a sleeve rod (35) is rotatably mounted on the support rod (34), a rotating member (36) is rotatably mounted on one end of the sleeve rod (35) away from the support rod (34), a threaded rod (37) is slidably clamped inside the sleeve rod (35), the threaded rod (37) is clamped in the middle part of the rotating member (36) through threaded engagement, a rotating rod (371) is rotatably mounted on one end of the threaded rod (37) away from the rotating member (36), the rotating rod (371) is rotatably mounted on the side surface of a second slider (52) on the upper side, and the second slider (52) is slidably clamped inside the second slide groove (313).

3. The office chair with self-correcting posture reminder according to claim 2, characterized in that: The first slide groove (31) is provided with a plurality of evenly distributed first slots (32), and a detachable sliding card is provided inside the first slot (32) with an inserting plate (33), and the inserting plate (33) extends to the inside of the second slide groove (313).

4. The posture-correcting self-reminding office chair according to claim 3, characterized in that: The reminding component (6) comprises a support frame (61), a support plate (62) is fixedly mounted on one side of the lower end of the support frame (61), a cavity corresponding to the support frame (61) is opened on the inner wall of the central groove (30), the end of the support frame (61) is slidably clamped inside the cavity, a return spring (65) is connected between the support frame (61) and the cavity, and a plurality of evenly distributed sound-generating components (7) are fixedly mounted on the lower surfaces of the support frame (61) and the support plate (62).

5. The posture-correcting self-reminding office chair according to claim 4, characterized in that: The sound-generating component (7) comprises a swing spring (71), a metal ball (72) is fixedly mounted at the lower end of the swing spring (71), the swing spring (71) is fixedly mounted on the corresponding support frame (61) and the lower end of the support plate (62), a fixing frame (63) is fixedly mounted at a position corresponding to the reminding component (6) inside the central groove (30), and a magnetic strip (64) is fixedly mounted on a side of the fixing frame (63) close to the reminding component (6).

6. The posture-correcting self-reminding office chair according to claim 5, characterized in that: The seat plate (2) is fixedly mounted with side connecting plates (21) on both sides of one end close to the back plate (3), the support rod (34) is fixedly mounted on the side connecting plates (21), and the first ratchet (22) is rotatably mounted on the sides of the two side connecting plates (21) away from each other, the first ratchet (22) penetrates the side connecting plate (21) and is fixedly mounted on the bottom end of the back plate (3), a matching sleeve (23) is provided on the side of the first ratchet (22) away from the side connecting plate (21), the matching sleeve (23) is slidably mounted on the side surface of the side connecting plate (21), a connecting frame (24) is slidably mounted on the side of the side connecting plate (21) close to the matching sleeve (23), one end of the connecting frame (24) is fixedly mounted on the matching sleeve (23), and the inside of the matching sleeve (23) has a first latching tooth used in conjunction with the first ratchet (22).

7. The posture-correcting self-reminding office chair according to claim 6, characterized in that: Gears (391) are rotatably mounted at positions on both sides of the backing plate (3) corresponding to the second winding roller (39); the middle portion of the gear (391) passes through the backing plate (3) and is fixedly mounted on the end of the second winding roller (39); evenly distributed tooth grooves (25) are formed on the side connecting plate (21), and the gear (391) meshes with the tooth grooves (25).

8. The posture-correcting self-reminding office chair according to claim 7, characterized in that: One side of the leg plate (4) is provided with two mutually symmetrical T-shaped slots (41), the interior of the T-shaped slot (41) is slidably provided with a first slider (43), the lower surface of the first slider (43) is fixedly provided with a first slide bar (44), the lower end of the first slide bar (44) is hinged with a second slide bar (45), the first slide bar (44) and the second slide bar (45) are both slidably provided inside the T-shaped slot (41), the lower surface of the side connecting plate (21) is slidably provided with two first connecting rods (211) corresponding to the T-shaped slots (41), the back plate (3) is far away Two second connecting rods (314) corresponding to the first connecting rod (211) are fixedly installed at the lower end of one side away from the seat plate (2); one end of the second connecting rod (314) away from the back plate (3) is rotatably installed on the end of the ratchet cavity (311); one end of the first connecting rod (211) away from the second connecting rod (314) is rotatably installed on the first slider (43); a plurality of U-shaped rods (42) are fixedly installed at the upper end of one side of the leg plate (4) close to the T-shaped slot (41); one end of the U-shaped rod (42) away from the leg plate (4) is rotatably installed on the lower surface of the seat plate (2).

9. The posture-correcting self-reminding office chair according to claim 8, characterized in that: A ratchet cavity (311) is provided at positions corresponding to the support plate (3) and the first winding roller (38); second ratchet wheels (381) are fixedly installed at both ends of the first winding roller (38); the second ratchet wheel (381) is located inside the ratchet cavity (311); the ratchet cavity (311) has a plurality of second latching teeth corresponding to the second ratchet wheel (381); one end of the second ratchet wheel (381) away from the first winding roller (38) extends to the outside of the support plate (3) and is fixedly installed with a turning handle (382).

10. The posture-correcting self-reminding office chair according to claim 9, characterized in that: A pedal (8) is fixedly mounted on the side of the bracket (1) away from the back plate (3), and two slots (81) corresponding to the second slide bar (45) are provided on the upper surface of the pedal (8). Two symmetrical supporting feet (312) are rotatably mounted on the side of the back plate (3) away from the seat plate (2).

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