Ergonomic chair

Abstract

The present invention relates to the technical field of seating, and discloses an ergonomic chair, comprising a backrest; a seat plate; a partition; a cushioning layer; a headrest; a backrest adjustment assembly; a seat back rotatably connected to the seat plate; a backrest adjustment assembly fixedly arranged on the lower side of the seat plate and connected to the connection position of the backrest and the seat plate; a cushioning layer is provided on the outer side of the backrest adjustment assembly, the upper side of the cushioning layer is fixedly connected to the seat plate, and a partition is fixedly provided on the lower side of the cushioning layer; the headrest adjustment assembly is arranged inside the headrest and connected to the backrest adjustment assembly; when the seat plate is subjected to force, the backrest adjustment assembly adjusts the elastic force between the backrest and the seat plate, and at the same time, the headrest adjustment assembly adjusts the width of the headrest, so that when a person with a large body weight uses the chair, there is a greater elastic force between the backrest and the seat plate, which reduces a certain deformation, and when a person with a small body weight uses the chair, the backrest and the seat plate have less elastic force than a person with a large body weight, which can produce similar deformation as that of a person with a large body weight when in use, so that the chair can be adapted to different people according to their weight.

Description

Technical Field

[0001] The present invention relates to the technical field of seats, in particular to an ergonomic chair. Background Art

[0002] An ergonomic chair is one that fits and supports the head, neck, waist, hands, and hips while seated. This reduces pressure on these areas and promotes greater comfort. Ergonomic chairs are generally designed to be natural and adaptable to the body, making them suitable for people of all shapes and sizes.

[0003] However, the ergonomic chairs in the existing technology can only deform according to different body shapes and fit the human body parts, and do not take into account the different weights of users. The elastic modulus of the deformable position is certain, which will lead to differences in the user experience of ergonomic chairs for people with small weight and people with large weight.

[0004] Therefore, it is necessary to provide an ergonomic chair to solve the above technical problems. Summary of the Invention

[0005] The object of the present invention is to provide an ergonomic chair to solve the problems raised in the above background technology.

[0006] Based on the above ideas, the present invention provides the following technical solutions: an ergonomic chair, comprising a seat back; a seat plate; a partition; a cushioning layer; a headrest; a seat back adjustment assembly; a headrest adjustment assembly; the seat back is rotatably connected to the seat plate; the seat back adjustment assembly is fixedly arranged on the lower side of the seat plate and connected to the connection position between the seat back and the seat plate; the cushioning layer is provided on the outer side of the seat back adjustment assembly, the upper side of the cushioning layer is fixedly connected to the seat plate, and the lower side of the cushioning layer is fixedly provided with the cushioning layer; the headrest is arranged on the upper side of the seat back The headrest adjustment component is arranged inside the headrest and is connected to the seat back adjustment component; when the seat plate is subjected to force, the seat back adjustment component adjusts the elastic force between the seat back and the seat plate, and at the same time, the headrest adjustment component adjusts the width of the headrest, so that when a heavy person uses it, there is a greater elastic force between the seat back and the seat plate to reduce a certain deformation, so that when a light person uses it, the elastic force between the seat back and the seat plate is less than that of a heavy person, and a similar deformation as that of a heavy person can be produced during use, so that the chair can adapt to different people according to their weight and is more ergonomic.

[0007] Preferably, the chair back adjustment assembly includes a rotating cover; a rotating plate; a torsion spring; the rotating cover is fixedly arranged on both sides of the seat plate and the rotation connection position of the chair back, the inner side of the rotating cover is rotatably connected to the rotating plate, and the torsion spring is fixedly connected between the rotating plate and the chair back, and the setting of the torsion spring gives an elastic force between the chair back and the seat plate.

[0008] The cam is fixedly mounted on a bottom surface of the seat frame, and the cam is secured to the bottom surface of the seat frame with an angular channel formed between the side panels and the side panels. The traction rope is wound around the rope wheel, and the traction rope passes through the mounting shell and the arc groove and is fixedly connected to the rotating plate. When the user sits on the seat plate, the seat plate generates downward pressure, causing the buffer layer to deform downward, and the mounting shell drives the probe rod to move downward accordingly. Under the action of the trapezoidal plate, the probe rod gradually contracts into the mounting shell, and the probe rod drives the tooth plate to move, thereby rotating the engaged first gear. The rotation of the first gear drives the rope wheel to rotate, thereby tightening the traction rope, and the traction rope pulls the rotating plate, giving the rotating plate a downward force, thereby increasing the force between the seat plate and the chair back during use. According to the different weights of the users, the deformation of the buffer layer is different, the contraction distance of the probe rod is different, the traction degree of the traction rope is also different, and the elastic force between the seat plate and the chair back is different, thereby enabling the chair to adapt to different people according to their weight and be more ergonomic.

[0009] Preferably, the headrest adjustment assembly includes a first sealing cylinder; a first piston rod; and a ventilation pipe; the first sealing cylinder is fixedly arranged on the upper end surface of the partition, the first piston rod passes through the first sealing cylinder and is slidingly connected to the first sealing cylinder, the end of the piston rod is provided with a piston plate that cooperates with the first sealing cylinder, and the ventilation pipe is passed through the lower side of the first sealing cylinder. When the mounting shell moves downward, the first piston rod is driven to move downward, thereby driving the piston plate to move downward to generate a larger air pressure.

[0010] Preferably, the headrest adjustment assembly further includes a second sealing cylinder; a second piston rod; a clamping plate; a slide groove; a second elastic member; a slider; the ventilation pipe passes through the buffer layer and is connected to the second sealing cylinder, the second sealing cylinder is arranged inside the headrest, and the second piston rod is slidably provided on both sides of the second sealing cylinder, and the end of the second piston rod inside the second sealing cylinder is provided with a sealing plate that slides with the second sealing cylinder, the second elastic member is fixedly provided between the sealing plate and the inner wall of the second sealing cylinder, the end of the second piston rod outside the second sealing cylinder is fixedly connected to the clamping plate, and the bottom of the clamping plate is fixed The slider is connected, and the bottom plate of the headrest is provided with the slide groove that cooperates with the slider. The air pressure generated by the connection of the vent pipe pushes the sealing plates in the second sealing cylinder to both sides, driving the second piston rod to move, thereby driving the clamping plate to move to both sides. The user's head or neck can be adaptively embedded between the two clamping plates. People with heavier weight have relatively thicker necks, and the required clamping plate displacement is larger. At this time, due to their heavy weight, the buffer part is greatly deformed, the piston plate moves downward for a longer distance, and the air pressure generated is greater, which increases the displacement of the clamping plate, thereby achieving the effect of automatically clamping the head and neck and adapting the corresponding clamping size according to the user's weight, further increasing the ergonomic effect.

[0011] Preferably, the headrest adjustment assembly also includes a second gear; a second tooth plate; the second tooth plates are fixedly provided on each of the sealing plates, the second tooth plates on the sealing plates are arranged opposite to each other, the second gears are meshed between the opposite tooth plates, and the second gear is rotatably connected to the second sealing cylinder. Through the arrangement of the second tooth plate and the second gear, the clamping plates on both sides can move simultaneously, and the movement distance is also the same, which prevents the user's head from being tilted.

[0012] Preferably, it further includes armrests; connecting columns; a base; the armrests are arranged on both sides of the seat plate, the connecting columns are fixedly arranged on the lower end surface of the partition, and the lower end of the connecting column is fixedly connected to the base.

[0013] Preferably, the buffer layer is made of elastic material; and the interior of the headrest is filled with flexible material.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. According to the different weights of users, the deformation of the cushioning layer is different, which makes the elastic force between the seat and the backrest different, thereby making the chair adaptable to different people according to their weight.

[0016] 2. Depending on the weight of the user, the deformation of the buffer layer is different, resulting in different air pressures generated by the descent of the first piston rod, which makes the opening displacement of the clamping plate different, making it better suitable for people of different body shapes and further enhancing the ergonomic chair effect.

[0017] 3. The arrangement of the second tooth plate and the second gear enables the clamping plates on both sides to move simultaneously, with the same movement distance, without causing the user's head to tilt, thereby improving the function of the ergonomic chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0019] Figure 2 It is a side sectional view of the present invention.

[0020] Figure 3 Schematic diagram of the internal structure of the mounting shell of the present invention.

[0021] Figure 4 Schematic diagram of the internal structure of the rotating cover of the present invention.

[0022] Figure 5 This is a schematic diagram of the internal structure of the first sealing cylinder of the present invention.

[0023] Figure 6 Schematic diagram of the internal structure of the headrest of the present invention.

[0024] Figure 7 It is a top view of the second sealing cylinder of the present invention.

[0025] Figure 8 Schematic diagram of the internal structure of the second sealing cylinder of the present invention.

[0026] Figure 9 It is a schematic diagram of the overall structure when the present invention is used.

[0027] Figure 10 This is a schematic diagram of the structure of the present invention when it is installed in a shell. DETAILED DESCRIPTION

[0028] See also Figures 1 to 10In an embodiment of the present invention, an ergonomic chair includes a seat back 1; a seat plate 2; a partition 4; a cushioning layer 7; a headrest; a seat back adjustment assembly 8; and a headrest adjustment assembly 9. The seat back 1 is rotatably connected to the seat plate 2; the seat back adjustment assembly 8 is fixedly arranged on the lower side of the seat plate 2 and connected to the connection position between the seat back 1 and the seat plate 2; the cushioning layer 7 is provided on the outer side of the seat back adjustment assembly 8, the upper side of the cushioning layer 7 is fixedly connected to the seat plate 2, and the lower side of the cushioning layer 7 is fixedly provided with the cushioning layer 4; the headrest is arranged on the upper side of the seat back 1, and the headrest adjustment assembly 9 It is arranged inside the headrest and connected to the seat back adjustment component 8; when the seat plate 2 is subjected to force, the seat back adjustment component 8 adjusts the elastic force between the seat back 1 and the seat plate 2, and at the same time, the headrest adjustment component 8 adjusts the width of the headrest, so that when a person with a large body weight uses it, there is a greater elastic force between the seat back 1 and the seat plate 2 to reduce a certain deformation, and when a person with a small body weight uses it, the elastic force between the seat back 1 and the seat plate 2 is less than that of a person with a large body weight, and a deformation similar to that of a person with a large body weight can be produced during use, so that this chair can be adapted to different people according to their weight, have a similar usage experience, be more ergonomic, and be safe and easy to operate.

[0029] In this embodiment, the chair back adjustment assembly 8 includes a rotating cover 808; a rotating plate 809; and a torsion spring 8010. The rotating cover 808 is fixedly arranged at the rotational connection position between the two sides of the seat plate 2 and the chair back 1, and the inner side of the rotating cover 808 is rotationally connected to the rotating plate 809. The torsion spring 8010 is fixedly connected between the rotating plate 809 and the chair back 1. The setting of the torsion spring 8010 gives an elastic force between the chair back 1 and the seat plate 2.

[0030] In this embodiment, the seat back adjustment assembly 8 also includes a mounting shell 801; a probe rod 802; a trapezoidal plate 803; a first tooth plate 804; a first gear 805; a rope pulley 806; a traction rope 807; an arcuate groove 8011; and a first elastic member 8012. The mounting shell 801 is fixedly arranged at the middle position of the lower end surface of the seat plate 2; the probe rod 802 passes through one side of the mounting shell 801 and is slidably connected to the mounting shell 801; one end of the probe rod 802 located inside the mounting shell 801 is fixedly connected to the first tooth plate 804. The first gear 805 meshing with the first tooth plate 804 is rotatably connected in the mounting shell 801, the rope winding wheel 806 is fixedly arranged on one side of the first gear 805, the first elastic member 8012 is fixedly connected between the first tooth plate 804 and the inner wall of the mounting shell 801, the trapezoidal plate 803 is fixedly connected to the bottom of the inner wall of the mounting shell 801, the upper bottom of the trapezoidal plate 803 is shorter than the lower bottom, the hypotenuse of the trapezoidal plate 803 is always in contact with the probe rod 802, and the rotating cover 808 is close to the rotating plate An arcuate groove 8011 is provided on one side of 809, and the traction rope 807 is wound around the rope wheel 806. The traction rope 807 passes through the mounting shell 801 and the arcuate groove 8011 and is fixedly connected to the rotating plate 809. When the user sits on the seat plate 2, the seat plate 2 generates downward pressure to cause the buffer layer 7 to deform downward, and the mounting shell 801 drives the probe rod 802 to move downward. Under the action of the trapezoidal plate 803, the probe rod 802 gradually shrinks into the mounting shell 801, and the probe rod 802 drives the first tooth plate 804 to move, thereby rotating the first meshing plate 804. Gear 805, the rotation of the first gear 805 drives the rope pulley 806 to rotate, thereby tightening the traction rope 807, and the traction rope 807 pulls the rotating plate 809, giving the rotating plate 809 a downward force, thereby increasing the force between the seat plate 2 and the chair back 1 when in use. According to the different weights of the users, the deformation of the buffer layer 7 is different, the contraction distance of the probe rod 802 is different, the traction degree of the traction rope 807 is also different, and the elastic force between the seat plate 2 and the chair back 1 is different, thereby enabling the chair to adapt to different people according to their weight and be more ergonomic.

[0031] In this embodiment, the headrest adjustment assembly 9 includes a first sealing cylinder 901; a first piston rod 902; and a ventilation pipe 903. The first sealing cylinder 901 is fixedly arranged on the upper end surface of the partition 4, the first piston rod 903 passes through the first sealing cylinder 901 and is slidingly connected to the first sealing cylinder 901, and the end of the piston rod 903 is provided with a piston plate that cooperates with the first sealing cylinder 901. The ventilation pipe 903 is arranged on the lower side of the first sealing cylinder 901. When the mounting shell 801 moves downward, the first piston rod 902 is driven to move downward, thereby driving the piston plate to move downward to generate a larger air pressure.

[0032] In this embodiment, the headrest adjustment assembly 9 also includes a second sealing cylinder 904; a second piston rod 905; a clamping plate 906; a slide groove 907; a second elastic member 908; a slider 9011; the ventilation pipe 903 passes through the buffer layer 7 and is connected to the second sealing cylinder 904, the second sealing cylinder 904 is arranged inside the headrest, and the second piston rod 905 is slidably provided on both sides of the sealing cylinder 904, and the second piston rod 905 is provided with a sealing plate that slides with the second sealing cylinder 904 at the end inside the second sealing cylinder 904, and the second elastic member 908 is fixedly provided between the sealing plate and the inner wall of the second sealing cylinder 904, and the second piston rod 905 is fixedly connected to the clamping plate 90 at the end outside the second sealing cylinder 904 6. The bottom of the clamping plate 906 is fixedly connected to the slider 9011, and the bottom plate of the headrest is provided with the slide groove 907 that cooperates with the slider 9011. The air pressure generated by the connection of the vent pipe 903 pushes the sealing plates in the second sealing cylinder 904 to both sides, driving the second piston rod 905 to move, thereby driving the clamping plate 906 to move to both sides. The user's head or neck can be adaptively embedded between the two clamping plates 906. Those with heavier weight have relatively thicker necks, and the required displacement of the clamping plate 906 is larger. At this time, due to their heavy weight, the buffer part 7 is greatly deformed, the piston plate moves downward for a longer distance, and the air pressure is greater, which increases the displacement of the clamping plate 906, thereby achieving the effect of automatically clamping the head and neck and adapting the clamping size according to the user's weight, further enhancing the ergonomic effect.

[0033] In this embodiment, the headrest adjustment assembly 9 also includes a second gear 909; a second tooth plate 9010; each of the sealing plates is fixed with a second tooth plate 9010, and the second tooth plates 9010 on the sealing plates are arranged opposite to each other, and the second gear 909 is engaged between the opposite tooth plates 9010, and the second gear 909 is rotatably connected to the second sealing cylinder 904. Through the arrangement of the second tooth plate 9010 and the second gear 909, the clamping plates 906 on both sides can move at the same time, and the movement distance is also the same, which prevents the user's head from being tilted.

[0034] In this embodiment, it also includes armrests 3; connecting columns 5; and a base 6. The armrests 3 are arranged on both sides of the seat plate 2, the connecting columns 5 are fixedly arranged on the lower end surface of the partition 4, and the lower end of the connecting column 5 is fixedly connected to the base 6.

[0035] In this embodiment, the buffer layer 7 is made of elastic material; the interior of the headrest is filled with flexible material.

[0036] Working principle:

[0037] When the user sits on the seat plate 2, the seat plate 2 generates downward pressure, causing the buffer layer 7 to deform downward, and the mounting shell 801 drives the probe rod 802 to move downward. Under the action of the trapezoidal plate 803, the probe rod 802 gradually shrinks into the mounting shell 801, and the probe rod 802 drives the first tooth plate 804 to move, thereby rotating the engaged first gear 805. The rotation of the first gear 805 drives the rope pulley 806 to rotate, thereby tightening the traction rope 807. The traction rope 807 involves the rotating plate 809, giving the rotating plate 809 a downward force, thereby increasing the force between the seat plate 2 and the chair back 1 when in use. When the mounting shell 801 moves downward, it drives the first piston rod 902 to move downward, thereby driving the piston plate to move downward to generate a large air pressure. The air pressure generated by the connection through the vent pipe 903 pushes the sealing plates in the second sealing cylinder 904 to both sides, driving the second piston rod 902 to move, thereby driving the clamping plate 906 to move to both sides. The user's head or neck can be adaptively embedded between the two clamping plates 906. The setting of the second tooth plate 9010 and the second gear 909 can make the clamping plates 906 on both sides move at the same time, and the movement distance is also the same, which prevents the user's head from being tilted.

Claims

1. An ergonomic chair, characterized by: Including chair back; seat plate; partitions; buffer layer; headrest; Seat back adjustment assembly; Headrest adjustment assembly; The seat back is rotatably connected to the seat plate; the seat back adjustment assembly is fixedly arranged on the lower side of the seat plate and connected to the connection position of the seat back and the seat plate; the outer side of the seat back adjustment assembly is provided with the buffer layer, the upper side of the buffer layer is fixedly connected to the seat plate, and the lower side of the buffer layer is fixedly provided with the partition; the headrest is arranged on the upper side of the seat back, and the headrest adjustment assembly is arranged inside the headrest and connected to the seat back adjustment assembly; when the seat plate is subjected to force, the seat back adjustment assembly adjusts the elastic force between the seat back and the seat plate, and the headrest adjustment assembly adjusts the width of the headrest; The seat back adjustment assembly includes a rotating cover; Rotating plate; torsion spring; The rotating cover is fixedly arranged at the rotation connection position between the two sides of the seat plate and the seat back, the inner side of the rotating cover is rotatably connected to the rotating plate, and the torsion spring is fixedly connected between the rotating plate and the seat back; The seat back adjustment assembly also includes a mounting shell; Probe; Trapezoidal plates; first tooth plate; First gear; Rope winding wheel; traction rope; arc groove; a first elastic member; The cam is fixedly mounted on the bottom surface of the base plate, and the cam is fixedly mounted on the bottom surface of the base plate, wherein the cam is fixedly mounted on the bottom surface of the base plate, the cam being fixedly mounted on the bottom surface of the base plate and the cam being fixedly mounted on the base plate. The headrest adjustment assembly includes a first sealing cylinder; a first piston rod; snorkel; The first sealing cylinder is fixedly arranged on the upper end surface of the partition, the first piston rod passes through the first sealing cylinder and is slidably connected to the first sealing cylinder, the end of the piston rod is provided with a piston plate that cooperates with the first sealing cylinder, and the vent pipe is arranged through the lower side of the first sealing cylinder; The headrest adjustment assembly further includes a second sealing cylinder; a second piston rod; Clamping plate; chute; a second elastic member; slider; The ventilation pipe passes through the buffer layer and is connected with the second sealing cylinder. The second sealing cylinder is arranged inside the headrest. The second piston rod is slidably provided on both sides of the second sealing cylinder. The end of the second piston rod inside the second sealing cylinder is provided with a sealing plate that slides with the second sealing cylinder. The second elastic member is fixed between the sealing plate and the inner wall of the second sealing cylinder. The end of the second piston rod outside the second sealing cylinder is fixedly connected to the clamping plate. The bottom of the clamping plate is fixedly connected to the slider. The bottom plate of the headrest is provided with the sliding groove that cooperates with the slider.

2. The ergonomic chair according to claim 1, characterized in that: The headrest adjustment assembly further includes a second gear; a second tooth plate; The second tooth plates are fixedly provided on each of the sealing plates. The second tooth plates on the sealing plates are arranged opposite to each other. The second gear is engaged between the opposite tooth plates. The second gear is rotatably connected to the second sealing cylinder.

3. The ergonomic chair according to claim 1, characterized in that: Also includes armrests; Connecting column; base; The armrests are arranged on both sides of the seat plate, the connecting column is fixedly arranged on the lower end surface of the partition, and the lower end of the connecting column is fixedly connected to the base.

4. The ergonomic chair according to claim 1, characterized in that: The buffer layer is made of elastic material; the interior of the headrest is filled with flexible material.

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