CN219661280U

CN219661280U - Comfortable office chair

Info

Publication number: CN219661280U
Application number: CN202321007204.9U
Authority: CN
Inventors: 苏付团; 向光文
Original assignee: Foshan Zhongde Wenyi Furniture Manufacturing Co ltd
Current assignee: Foshan Zhongde Wenyi Furniture Manufacturing Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-12
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a comfortable office chair, and relates to the technical field of office furniture. The comfortable office chair comprises a base, a seat plate positioned above the base, a seat plate supporting frame positioned between the base and used for connecting the base and the seat plate, a chair back positioned on one side of the seat plate and a rotating mechanism used for connecting the seat plate and the chair back, wherein a supporting seat is arranged on one side of the chair back, which is away from the seat plate, and is connected with a pin which is rotationally connected with the chair back supporting frame. The office chair not only can adjust the angle of the chair back through the rotating mechanism, but also can provide supporting force for the chair back when the angle between the chair back and the seat plate is overlarge, so that the occurrence of the overturning condition caused by unstable gravity center is reduced, and the safety is improved.

Description

Comfortable office chair

Technical Field

The utility model relates to the field of office furniture, in particular to a comfortable office chair.

Background

The modern office workers need to sit on the office for at least 8 hours every day on average, and most of the workers can only take noon break on the office chair, and basically work and rest of one day are spent on the office chair, so that the comfort of the office chair becomes an important reference factor when the workers buy the office chair.

Most office chairs in the market can only adjust the height of the chair, and part of office chairs can adjust the angle of the backrest, but the office chairs cannot lie completely. When the angle of the backrest is overlarge, the gravity center of a user is positioned on the backrest, so that the user can easily tilt backwards, and the office chair with simple functions is not only lack of comfort, but also lack of safety, and is unfavorable for work and rest of the user.

Disclosure of Invention

In order to reduce the occurrence of the situation that a user tips over due to unstable gravity center and improve safety and comfort, the utility model provides a comfortable office chair.

The utility model provides a comfortable office chair which adopts the following technical scheme:

the utility model provides a comfortable office chair, includes the base, is located the seat of base top, be located the base with be used for connecting between the seat the base with the seat support frame of seat, be located the back of the chair of seat one side and be used for connecting the seat with the rotary mechanism of back of the chair, rotary mechanism contain with back of the chair fixed connection's rotating member, rotating member fixedly connected with swivel axostylus axostyle, swivel axostylus axostyle with the seat support frame rotates to be connected with the adjustment the back of the chair with the angle that the seat formed, back of the chair deviates from seat one side is provided with the supporting seat, the supporting seat is connected with the pin, the pin rotates and is connected with back of the chair support frame.

Through adopting above-mentioned technical scheme, under human promotion, the back of the chair drives the rotating member and uses rotatory axostylus axostyle to rotate as the center pin to adjust the angle between chair back of the chair and the seat, when the angle between back of the chair and the seat is too big in addition, the back of the chair support frame is because of gravity effect, naturally hangs down, and supports the back of the chair, reduces the condition emergence of overturning because of the focus is unstable, has improved the security greatly.

Optionally, the rotation axis pole cover is equipped with the torsional spring, rotation piece fixedly connected with torsional spring gag lever post, torsional spring one end with torsional spring gag lever post fixed connection, the torsional spring other end with seat fixed connection.

Through adopting above-mentioned technical scheme, when the user lies down towards the back of the chair, under the promotion of human body, the back of the chair drives the rotation piece and uses rotatory axostylus axostyle as the center pin rotation, and the torsional spring is twisted tightly. When a user leaves the office chair, the torsion spring pushes the torsion spring limiting rod, and the torsion spring limiting rod drives the rotating piece to rotate, so that the chair back can automatically rotate to a cocked state.

Optionally, an arc groove is formed on one side, close to the rotating mechanism, of the seat support frame, and the torsion spring limiting rod penetrates through the arc groove to be in sliding connection with the seat support frame.

Through adopting above-mentioned technical scheme, when the user lies down towards the back of the chair, the arc wall can restrict the sliding range of torsional spring gag lever post to the rotation angle of rotating member and back of the chair has been restricted, and back of the chair and seat can keep suitable maximum angle when making to lie down.

Optionally, the back of the chair support frame is keeping away from supporting seat one end is provided with the support frame magnet, the support frame magnet is located and is close to the central position of back of the chair one side, the back of the chair is close to back of the chair support frame one side is provided with back of the chair magnet, back of the chair magnet with the relative suction of support frame magnet each other.

Through adopting above-mentioned technical scheme, when the back of the chair erects, the back of the chair support frame adsorbs on the back of the chair through magnetism, can not rock at will and cause inconvenience.

Optionally, the seat is close to base one side is provided with shank supporting mechanism, shank supporting mechanism includes two sleeves, two the sleeve is located respectively the both sides of seat support frame correspond each other and with seat fixed connection, wear to be equipped with the callus on the sole bracing piece in the sleeve, the callus on the sole bracing piece with the sleeve is followed to be close to or keep away from the direction sliding connection of back of the chair, the callus on the sole bracing piece is kept away from back of the chair one end fixedly connected with callus on the sole rotation axis, callus on the sole rotation axis is connected with the callus on the sole.

Through adopting above-mentioned technical scheme, the user can be followed and be close to or keep away from the callus on the sole of back direction pull out to the user of adaptation different heights.

Optionally, the callus on the sole cover is located the week side of callus on the sole rotation axis, the callus on the sole bracing piece is close to callus on the sole rotation axis one end is provided with the support stopper, the support stopper is located the callus on the sole rotation axis with between the sleeve, support stopper upper surface with the horizontal plane in callus on the sole rotation axis center pin place is leveled, the callus on the sole is close to the callus on the sole bracing piece both sides are provided with the callus on the sole stopper respectively.

Through adopting above-mentioned technical scheme, thereby the user can rotate the callus on the sole to vertical accomodate, when the callus on the sole rotates to the horizontality around the callus on the sole rotation axis, the lower surface of callus on the sole stopper and support stopper upper surface laminating mutually, the callus on the sole can't continue to rotate towards this direction because of spacing this moment, and the user alright take the foot steadily on the callus on the sole.

Optionally, the base includes elevating gear and chassis, elevating gear one end with the chassis is connected, elevating gear one end with the seat support frame is connected.

Through adopting above-mentioned technical scheme, elevating gear takes the common vapour-pressure type elevating gear in market as the example, has a cylinder in the vapour-pressure type elevating gear, and the piston pneumatic rod in the cylinder reciprocates to can carry out the lift adjustment to the office chair.

Optionally, a waist pad is arranged on the chair back.

By adopting the technical scheme, the office chair can provide support for the waist of a user, lighten lumbar vertebra pressure and improve comfort level.

Optionally, one end of the chair back far away from the seat plate is provided with a head cushion formed by protruding towards one side of the seat plate.

By adopting the technical scheme, the office chair can provide support for the head of a user, lighten the cervical vertebra pressure and improve the comfort level.

In summary, the utility model has at least one of the following beneficial effects:

1. the angle between the chair back and the seat plate can be adjusted.

2. When the angle between the chair back and the seat plate is too large, the chair back has enough supporting force, so that the occurrence of the overturning condition is reduced.

3. When the user leaves the office chair, the chair back can automatically rotate to a standing state.

4. The chair back support frame can be adsorbed on the chair back, and the inconvenience caused by random shaking can be avoided.

5. The office chair has foot pads for the user to rest on.

6. The height of the office chair can be adjusted.

7. Can provide support for the waist of the user, lighten the lumbar pressure and improve the comfort level.

8. Can provide support for the head of the user, lighten the cervical vertebra pressure and improve the comfort level.

Drawings

Fig. 1 is a left side view of a comfortable office chair when lying down.

Fig. 2 is a left side view of a comfortable office chair when erected.

Fig. 3 is a cross-sectional view A-A of fig. 2.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is an enlarged view of the portion b in fig. 3.

Fig. 6 is an exploded view of the leg support mechanism.

Reference numerals illustrate:

1. a base; 11. a chassis; 111. supporting feet; 112. a universal wheel; 12. a lifting device; 2. a seat plate; 3. a seat support; 31. an arc-shaped groove; 4. a rotation mechanism; 41. a rotating member; 42. a rotating shaft; 421. a torsion spring; 43. a torsion spring limit rod; 5. a chair back; 51. a waist pad; 52. a head pad; 53. a support base; 54. a pin; 55. a chair back support frame; 551. a support frame magnet; 56. a back magnet; 6. an armrest; 61. a handrail housing; 611. a button sliding groove; 612. an arc-shaped guide rail; 62. a handrail support post; 621. a clamping groove; 63. a handrail cover; 64. a cavity; 65. An adjusting device; 651. a telescopic rod; 652. a spring; 653. a button connecting block; 654. an adjustment button; 655. a connecting piece; 656. a clip; 657. a guide rod; 7. a leg support mechanism; 71. a sleeve; 72. a foot pad support rod; 721. a supporting limiting block; 73. a foot pad rotating shaft; 74. foot pads; 741. foot pad limiting block.

Detailed Description

The embodiment discloses a comfortable office chair. Referring to fig. 1, a comfortable office chair includes a base 1, a seat 2, a seat support frame 3, a swivel mechanism 4, a back 5, armrests 6, and leg support mechanisms 7. The seat 2 is fixedly connected with the seat support frame 3, the base 1 is positioned below the seat 2 and is connected with the seat support frame 3, the chair back 5 is positioned behind the seat 2 and is connected with the seat support frame 3 through the rotating mechanism 4, and the rotating mechanism 4 can adjust the included angle between the chair back 5 and the seat 2. The two armrests 6 are arranged, and the two armrests 6 are respectively positioned on two opposite sides of the seat 2, correspond to each other and are fixedly connected with the seat support frame 3. The leg support mechanism 7 is located on the side of the seat plate 2 near the bottom plate, and is connected to the seat plate 2 for supporting the legs of the user.

Referring to fig. 1 and 2, the base 1 includes a chassis 11 and a lifting device 12, the chassis 11 includes a plurality of supporting legs 111, in this embodiment, the number of supporting legs 111 is 5, and the supporting legs 111 are uniformly distributed along the circumference of the central axis of the lifting device 12. One end of the supporting leg 111 is fixedly connected with the lifting device 12, and the other end is fixedly connected with a universal wheel 112. One end of the lifting device 12, which is far away from the chassis 11, is fixedly connected with the seat support frame 3 and is used for adjusting the height of the seat 2 so as to adapt to the height requirements of different users.

Referring to fig. 3 and 4, the rotation mechanism 4 includes two rotation members 41, and the two rotation members 41 are respectively located at two sides of the seat support frame 3 and correspond to each other. A rotating shaft rod 42 is fixedly connected between the two rotating members 41, the rotating shaft rod 42 penetrates through the seat support frame 3 and is in rotary connection with the seat support frame 3, and the rotating members 41 and the rotating shaft rod 42 rotate around the central shaft of the rotating shaft rod 42 together. A torsion spring limiting rod 43 is fixedly connected between the two rotating parts 41, a torsion spring 421 is arranged in the center of the rotating shaft rod 42 in a penetrating mode, one end of the torsion spring 421 is fixedly connected with the seat 2, and the other end of the torsion spring 421 is fixedly connected with the torsion spring limiting rod 43. The seat support frame 3 is provided with an arc groove 31 (see fig. 1) on one side close to the rotating mechanism 4, and a torsion spring limiting rod 43 penetrates through the arc groove 31 and is in sliding connection with the arc groove 31. The rotation member 41 can drive the torsion spring limiting rod 43 to move along the arc-shaped groove 31 when rotating, and the arc-shaped groove 31 can limit the rotation angle of the rotation member 41. When a user lies down on the chair back 5, under the pushing of the human body, the chair back 5 drives the rotating piece 41 to rotate by taking the rotating shaft rod 42 as a central shaft, the rotating piece 41 drives the torsion spring limiting rod 43 to slide along the arc-shaped groove 31, and the torsion spring 421 is twisted tightly. When the user leaves the office chair, the torsion spring 421 pushes the torsion spring limiting rod 43, and the torsion spring limiting rod 43 drives the rotating member 41 to rotate, so that the chair back 5 automatically rotates to a standing state.

Referring to fig. 1, in order to reduce the occurrence of toppling of the office chair caused by the deviation of the center of gravity of the human body toward the seat back 5 when the angle between the seat back 5 and the seat plate 2 is too large, two supporting seats 53 are connected to one side of the seat back 5 away from the seat plate 2, and the two supporting seats 53 are respectively located at two sides of the seat back 5 and correspond to each other. The middle of the supporting seat 53 is fixedly connected with a pin 54, the pin 54 is rotatably connected with a chair back supporting frame 55, and the chair back supporting frame 55 can swing circumferentially by taking the pin 54 as an axle center. When the angle between the seat back 5 and the seat plate 2 is excessively large, the seat back support frame 55 can naturally hang down and provide support for the seat back 5. The back of the chair support frame 55 is provided with support frame magnet 551 in keeping away from supporting seat 53 one end and being close to back of the chair 5 one side central point, and back of the chair 5 is provided with back of the chair magnet 56 in being close to the one end of seat 2 and being close to one side of back of the chair support frame 55, and support frame magnet 551 and back of the chair magnet 56 are mutually to inhaling, and when the angle between back of the chair 5 and seat 2 is nearly perpendicular, under the effect of support frame magnet 551 and back of the chair magnet 56, back of the chair support frame 55 can adsorb on back of the chair 5, saves accommodation space.

In addition, in order to further improve the comfort of the user when lying down for rest, a waist pad 51 is disposed at one end of the chair back 5 near the seat 2, the waist pad 51 is detachably connected with the chair back 5, and the material of the waist pad 51 includes, but is not limited to, cotton, latex, etc., in this embodiment, cotton is taken as an example. The seat back 5 is protruded at one end far from the seat plate 2 corresponding to the head position of the user to form a head cushion 52, so that the head of the user can be supported more comfortably.

Referring to fig. 3 and 5, armrests 6 are connected to both sides of the seating plate 2, and the armrests 6 include an armrest housing 61, armrest posts 62, an armrest cover 63, and an adjusting device 65. The upright post of the armrest 6 is perpendicular to the plane where the seat 2 is located, one end of the upright post of the armrest 6 is fixedly connected with the seat support frame 3, and the other end of the upright post of the armrest 6 extends vertically in the direction away from the base 1. The armrest housing 61 is fixedly connected with the armrest cover 63 at one end far away from the seat plate 2, the other end of the armrest housing 61 is sleeved outside the armrest 6 upright post, and the armrest housing 61 and the armrest 6 upright post are in sliding connection along the vertical direction. The armrest strut 62 is located in the armrest housing 61 and has a cavity 64 on a side facing away from the seat 2, and a plurality of clamping grooves 621 are formed in the vertical direction on a side of the armrest strut 62 facing the cavity 64, in this embodiment, 12 clamping grooves 621 are taken as an example. The adjusting device 65 is installed in the cavity 64, and the adjusting device 65 comprises a telescopic rod 651, one end of the telescopic rod 651 is fixedly connected with the armrest cover 63, and the other end of the telescopic rod 651 is connected with a button connecting block 653. The outer peripheral side of the telescopic rod 651 is fitted with a spring 652, one end of the spring 652 is abutted against or fixed to the armrest housing 61, and the other end is abutted against or fixed to the button connection block 653. When the telescopic rod 651 is stressed to shorten, the spring 652 is compressed. One side of the button connecting block 653, which is away from the armrest strut 62, is connected with an adjusting button 654, one side of the armrest housing 61, which is close to the cavity 64, is provided with a button sliding groove 611, the adjusting button 654 is slidably connected with the button sliding groove 611, and when the button sliding groove 611 slides, the adjusting button 654 can drive the telescopic rod 651 to shorten or lengthen through the button connecting block 653. The button connecting block 653 is connected with a connecting piece 655 on one side away from the telescopic rod 651, and the connecting piece 655 is made of a material capable of being elastically deformed, including but not limited to plastics, rubber, etc., and in this embodiment, plastics are taken as an example. The connecting piece 655 is connected with the buckle spare 656 far away from button connecting block 653 one end, is provided with the arc guide rail 612 of arc opening orientation handrail 6 stand between handrail shell 61 and the handrail 6 stand, is provided with guide arm 657 on the buckle spare 656, guide arm 657 and arc guide rail 612 sliding connection, and arc guide rail 612 is used for guiding the direction of motion of buckle spare 656 for buckle spare 656 can with the mutual joint of draw-in groove 621, thereby realize the altitude mixture control of handrail 6 overcoat. Wherein, the catch 656 is preferably a spherical catch 656, facilitating sliding along the arcuate guide 612.

Referring to fig. 1 and 6, the leg support mechanism 7 includes two sleeves 71, a footbed support rod 72, a footbed rotation shaft 73, and a footbed 74. The two sleeves 71 are respectively positioned at two sides of the seat support frame 3, correspond to each other and are fixedly connected with the seat 2. The foot pad support bar 72 passes through the sleeve 71 and is slidably connected with the sleeve 71 in a direction approaching or separating from the seatback 5. The foot pad support rod 72 is fixedly connected with one end far away from the chair back 5 through the foot pad rotating shaft 73, the foot pad 74 is sleeved outside the foot pad rotating shaft 73 and is rotationally connected with the foot pad rotating shaft 73, and the foot pad 74 can rotate by taking the foot pad rotating shaft 73 as a central shaft. The foot pad support rod 72 is provided with a support stopper 721 near one end of the foot pad rotation shaft 73, the support stopper 721 is positioned between the foot pad rotation shaft 73 and the sleeve 71, and the upper surface of the support stopper 721 is leveled with the horizontal plane where the central shaft of the foot pad rotation shaft 73 is positioned. The callus on the sole 74 is close to callus on the sole bracing piece 72 both sides and is provided with callus on the sole stopper 741 respectively, and when callus on the sole 74 rotated to the horizontality around callus on the sole rotation axis 73, callus on the sole stopper 741 is located between callus on the sole rotation axis 73 and the sleeve 71, and the lower surface of callus on the sole stopper 741 is leveled with the horizontal plane that callus on the sole rotation axis 73 center pin is located to laminating mutually with support stopper 721 upper surface, and the callus on the sole 74 can't continue to rotate to this direction because of spacing this moment.

The embodiment of the utility model provides a comfortable office chair, which comprises the following implementation principles:

when an office worker sits and works, a comfortable office chair is provided with the lifting device 12, and the height of the office chair can be adjusted through the lifting device 12, so that the office worker can work at a proper office height. The waist cushion 51 and the head cushion 52 formed by the protrusion of the head position of the user are arranged on the chair back 5, so that the waist and the head of the user can be better supported, the lumbar vertebra stress is reduced, and the fatigue is relieved.

When an office worker takes a rest, the included angle between the chair back 5 and the seat plate 2 is increased through the rotating mechanism 4 under the pushing of the human body, so that the office worker can take a rest conveniently. Meanwhile, the chair back supporting frame 55 naturally hangs down due to the action of gravity and supports the chair back 5, so that office staff is more calm during rest and cannot fall back due to the stress of the chair back 5.

After the office staff sits up after having had a rest, the human back does not exert thrust to the chair back 5 at this moment, and under the resilience effect of the torsional spring 421 in the rotary mechanism 4, the chair back 5 automatically rotates to the state of standing up, and office work is facilitated. When the chair back 5 is erected, the chair back support frame 55 naturally hangs down due to the action of gravity, and is attracted by the support frame magnet 551 and the chair back magnet 56, and the chair back support frame 55 is attracted to the side of the chair back 5, so that inconvenience caused by random shaking is avoided.

The hand of office staff also can put on the armrest lid 63, if armrest 6 is high unsuitable, and armrest 6 is provided with adjusting device 65, through sideslip adjustment button 654 toward armrest lid 63, adjustment button 654 promotes button connecting block 653 and extrudes spring 652, and buckle spare 656 moves along arc guide 612 in the direction of keeping away from armrest pillar 62 for buckle spare 656 breaks away from draw-in groove 621, and armrest shell 61 and armrest pillar 62 can freely slide, thereby adjusts whole armrest 6 height.

When the armrest 6 is at a proper height, the adjusting button 654 is released, the spring 652 is rebounded to a natural extension state, and under the thrust of the spring 652 and the self gravity of the buckling piece 656, the buckling piece 656 moves along the arc-shaped guide rail 612 towards the direction close to the armrest strut 62 and is in clamping connection with the clamping groove 621, and at the moment, the relative position of the armrest housing 61 and the armrest strut 62 is locked, so that the whole armrest 6 is locked to be at a proper height.

When the office staff has a rest, the foot pad support rod 72 can be pulled out from the sleeve 71, the foot pad 74 is rotated to the horizontal position, and at the moment, the office staff can comfortably put the feet on the foot pad 74, and the office staff can lie flat for rest.

The present embodiment is merely illustrative of the present utility model and not limiting, and one skilled in the art, after having read the present specification, may make modifications to the embodiment without creative contribution as required, but is protected by patent law within the scope of the claims of the present utility model.

Claims

1. A comfortable office chair, characterized in that: including base (1), be located seat (2) of base (1) top, be located between base (1) be used for connecting seat (1) and seat (2) seat support frame (3), be located back of the chair (5) of seat (2) one side and be used for connecting rotation mechanism (4) of seat (2) and back of the chair (5), rotation mechanism (4) contain with back of the chair (5) fixed connection's rotating member (41), rotating member (41) fixedly connected with rotating shaft (42), rotating shaft (42) rotate with seat support frame (3) and be connected in order to adjust the angle that back of the chair (5) and seat (2) formed, back of the chair (5) deviate from seat (2) one side and are provided with supporting seat (53), supporting seat (53) are connected with pin (54), pin (54) rotate and are connected with back of the chair support frame (55).

2. A comfortable office chair of claim 1, wherein: the rotating shaft rod (42) is sleeved with a torsion spring (421), the rotating piece (41) is fixedly connected with a torsion spring limiting rod (43), one end of the torsion spring (421) is fixedly connected with the torsion spring limiting rod (43), and the other end of the torsion spring (421) is fixedly connected with the seat plate (2).

3. A comfortable office chair of claim 2, wherein: an arc-shaped groove (31) is formed in one side, close to the rotating mechanism (4), of the seat support frame (3), and the torsion spring limiting rod (43) penetrates through the arc-shaped groove (31) to be in sliding connection with the arc-shaped groove (31).

4. A comfortable office chair of claim 1, wherein: the chair back support frame (55) is provided with a support frame magnet (551) at one end far away from the support seat (53), the support frame magnet (551) is located the central position near one side of the chair back (5), one side of the chair back (5) near the chair back support frame (55) is provided with a chair back magnet (56), the chair back magnet (56) and the support frame magnet (551) are mutually opposite to each other.

5. A comfortable office chair of claim 1, wherein: the seat (2) is close to base (1) one side and is provided with shank supporting mechanism (7), shank supporting mechanism (7) are including two sleeve (71), callus on the sole bracing piece (72), callus on the sole rotation axis (73) and callus on the sole (74), two sleeve (71) are located seat support frame (3) both sides and correspond each other and with seat (2) fixed connection respectively, callus on the sole bracing piece (72) run through sleeve (71) and along being close to or keep away from direction sliding connection of back of the chair (5) with sleeve (71), callus on the sole bracing piece (72) are keeping away from back of the chair (5) one end and are passed through callus on the sole rotation axis (73) fixed connection, callus on the sole (74) and callus on the sole rotation axis (73) swivelling joint.

6. A comfortable office chair of claim 5, wherein: the utility model discloses a callus on sole, including callus on sole bracing piece (72), callus on the sole rotation axis (73) is provided with support stopper (721), support stopper (721) are located between callus on the sole rotation axis (73) and sleeve (71), support stopper (721) upper surface is leveled with the horizontal plane that callus on the sole rotation axis (73) center pin is located, callus on the sole (74) are provided with callus on the sole stopper (741) respectively near callus on the sole bracing piece (72) both sides.

7. A comfortable office chair of claim 1, wherein: the base (1) comprises a lifting device (12) and a chassis (11), one end of the lifting device (12) is connected with the chassis (11), and one end of the lifting device (12) is connected with the seat support frame (3).

8. A comfortable office chair of claim 1, wherein: the chair back (5) is provided with a waist pad (51), and the waist pad (51) is detachably connected with the chair back (5).

9. A comfortable office chair of claim 1, wherein: one end of the chair back (5) far away from the seat plate (2) is provided with a head cushion (52) which is formed by protruding towards one side of the seat plate (2).