CN220494635U - Office chair - Google Patents

Abstract

The utility model relates to the technical field of seats, and discloses an office chair, which comprises: a base; the chair back is connected with the base, notches are formed in two sides of the lower portion of the chair back, supporting wing plates are arranged in two sides of the upper portion of the chair back, and the supporting wing plates extend along the chair back and are arranged in a direction away from the chair back; the first pedal structure is arranged on the same side of the base with the chair back, and comprises a connecting structure, a first pedal and a second pedal, wherein the first pedal and the second pedal are arranged at intervals and are connected with the connecting structure, and the connecting structure is connected with the base. When a user lies prone on the chair back, the notches can be used for the legs to pass through, the support wing plates can provide support for the arms, the first foot pedals and the second foot pedals can be used for placing the feet, the situation that the legs are placed in no place to enable the knees to be in a kneeling state is avoided, the body can be unfolded, and therefore comfort is improved.

Description

Office chair

Technical Field

The utility model relates to the technical field of seats, in particular to an office chair.

Background

With the development of the age, sitting postures are kept for a long time every day, and the sitting postures become a common phenomenon in staff. The world health organization report indicates that sedentary levels are below 10% in only 7 countries worldwide, 14 billions of people are at risk for illness due to lack of exercise, and "sedentary" is listed as one of the ten leading causes of mortality in four major non-infectious diseases. Studies have shown that subjects perform some simple activities after sitting for 30 minutes, such as: when walking, doing housework and the like, the cancer death risk is reduced by 31 percent, and in the working process, the risk caused by sedentary sitting can be relieved by frequently adjusting the posture.

The Chinese patent with the bulletin number of CN212325900U discloses a multifunctional groveling and sitting chair, which comprises a chair back, a chair seat and a base; the upper end of the chair back is provided with a head supporting part matched with the contour of the chin of a human body. The chair back is used as a body supporting part and is used for supporting the back of a person in a sitting posture or lying on the chair back in a kneeling posture, the chin is placed on the head supporting part, the chair back can effectively support the head and the body, and the spine is in a vertical state as in standing, so that the problem caused by the sitting posture is effectively avoided; when lying on the stomach, the hands can freely move, such as using a computer, reading books and the like, thereby facilitating work and entertainment. However, when the multifunctional lying-on chair is lying on the chair back, the knees can only be in a kneeling state, the feet are placed on the chair, the body is difficult to relax completely, and the comfort is poor.

Disclosure of Invention

The utility model aims to provide an office chair, which solves the problems that the prior art multifunctional chair for sitting on the back of the chair is poor in comfort and the knees can only be in a kneeling state when lying on the back of the chair.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the office chair of the utility model comprises:

a base;

the chair back is connected with the base, notches are formed in two sides of the lower portion of the chair back, supporting wing plates are arranged in two sides of the upper portion of the chair back, and the supporting wing plates extend along the chair back and are arranged in a direction away from the chair back;

the first pedal structure is arranged on the same side of the base with the chair back, and comprises a connecting structure, a first pedal and a second pedal, wherein the first pedal and the second pedal are arranged at intervals and are connected with the connecting structure, and the connecting structure is connected with the base.

Preferably, the office chair further comprises a headrest assembly, wherein the headrest assembly comprises a headrest, a connecting arm and an angle adjuster, one end of the connecting arm is rotationally connected with the headrest, the other end of the connecting arm is connected with the angle adjuster, and the angle adjuster is mounted on the rear side of the chair back.

Preferably, the connecting arm includes a first connecting arm and a second connecting arm, the first connecting arm is rotatably connected with the second connecting arm, the first connecting arm is connected with the headrest, and the second connecting arm is connected with the angle adjuster.

Preferably, the office chair further comprises a second pedal structure, wherein the second pedal structure is connected with the base and is respectively arranged on two opposite sides of the base with the first pedal structure.

Preferably, the second pedal structure comprises a first folding arm, a second folding arm and a third pedal, the first folding arm and the second folding arm are respectively connected with the base in a rotating mode, the first folding arm and the second folding arm are both foldable, and two ends of the third pedal are respectively connected with the first folding arm and the second folding arm in a rotating mode.

Preferably, the first folding arm and the second folding arm comprise a first rod and a second rod, the first rod is rotationally connected with the base, a gas spring is arranged in the second rod, and the gas spring is connected with the third pedal.

Preferably, the base comprises a support frame, a chassis, chair legs and a chair wheel, wherein the chassis is arranged on the upper side of the support frame, the chair legs are connected to the lower side of the support frame, and the chair wheel is arranged at the end parts of the chair legs.

Preferably, the support frame comprises a support frame and a support rod, the support rod is a lifting rod, one end of the support rod is rotatably connected with the chassis, the other end of the support rod is connected with the chair legs, the support frame is arranged outside the support rod at intervals, and the support frame is connected with the chassis.

Preferably, the base further comprises a cushion, and the cushion is arranged on the chassis.

Preferably, the office chair further comprises armrests and angle adjusters, wherein the angle adjusters are mounted on the base, and the armrests are connected with the base through the angle adjusters.

Compared with the prior art, the office chair has the beneficial effects that:

according to the office chair disclosed by the embodiment of the utility model, the two sides of the lower part of the chair back are respectively provided with the notch, the two sides of the upper part of the chair back are respectively provided with the supporting wing plates, the same side of the base connected with the chair back is provided with the first pedal structure, and the first pedal structure is provided with the first pedal and the second pedal which are spaced. When a user lies prone on the chair back, the notches can be used for the legs to pass through, the support wing plates can provide support for the arms, the first foot pedals and the second foot pedals can be used for placing the feet, the situation that the legs are placed in no place to enable the knees to be in a kneeling state is avoided, the body can be unfolded, and therefore comfort is improved.

Drawings

Fig. 1 is a schematic perspective view of an office chair according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a second embodiment of an office chair according to the present utility model;

fig. 3 is a schematic perspective view of an office chair according to an embodiment of the present utility model.

In the drawing the view of the figure,

1. a base; 11. a support frame; 111. a support frame; 112. a support rod; 12. a chassis; 13. chair legs; 14. a chair wheel; 15. a cushion; 2. a chair back; 21. a notch; 22. a support wing plate; 3. a first pedal structure; 31. a connection structure; 32. a first foot pedal; 33. a second foot pedal; 4. a headrest assembly; 41. a headrest; 42. an angle adjuster; 43. a first connecting arm; 44. a second connecting arm; 5. a second pedal structure; 51. a first folding arm; 511. a first rod member; 512. a second rod member; 52. a second folding arm; 53. a third foot pedal; 6. an armrest.

Detailed Description

In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, an embodiment of the present utility model provides an office chair, including a base 1, a chair back 2 and a first pedal structure 3, wherein the base 1 is a bearing substrate of the office chair, the chair back 2 is connected with the base 1, two sides of the lower portion of the chair back 2 are provided with notches 21, two sides of the upper portion of the chair back 2 are provided with support wing plates 22, and the support wing plates 22 extend along the chair back 2 and are arranged in a direction away from the chair back 2; the first pedal structure 3 and the chair back 2 are arranged on the same side of the base 1, the first pedal structure 3 comprises a connecting structure 31, a first pedal 32 and a second pedal 33, the first pedal 32 and the second pedal 33 are arranged at intervals and are connected with the connecting structure 31, and the connecting structure 31 is connected with the base 1.

When a user lies prone on the chair back 2, the notches 21 on two sides of the lower part of the chair back 2 can be respectively penetrated by two legs, the supporting wing plates 22 on two sides of the upper part of the chair back 2 can provide support for arms, the first foot pedal 32 and the second foot pedal 33 can be used for placing two feet, providing movable space for the two legs, the two feet and the two arms, avoiding the two legs from being placed everywhere to enable the two knees to be in a kneeling state, so that the body can be stretched, thereby improving the comfort, reducing the phenomena of poor sitting habit, neglecting the sitting time and the like of modern mental workers, so as to relieve the fatigue of the spine and muscles, regulate the body function, reduce the incidence rate of occupational diseases and improve the modern office environment.

The support flap 22 extends in a direction away from the panel of the seatback 2 and is inclined rearward of the seatback 2. The chair back is connected with the base through a hinge connection structure so as to realize the reclining function of the chair back. In some embodiments, the chair back adopts an ergonomic S-shaped adduction backrest, is in a human bionic spine pasting structure, and can promote human comfort by utilizing the curve design of pasting the spinal chest bulge when the chair back serves as a board for lying prone.

The first pedal 32, the second pedal 33 rotate with connection structure 31 respectively and are connected, connection structure 31 with base 1 rotates to be connected, through the rotation of connection structure 31, conveniently adjusts the position of first pedal 32, second pedal 33, through the rotation of first pedal 32 and second pedal 33, conveniently adjusts the inclination of first pedal 32, second pedal 33 for first pedal structure 3 can be applicable to different users, improves user's travelling comfort. In some embodiments, the connecting structure 31 includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the base 1, the other end of the first connecting rod is fixed in the middle of the second connecting rod, and the first pedal 32 and the second pedal 33 are respectively connected at two ends of the second connecting rod.

The first pedal 32 and the second pedal 33 are both cuboid, the first pedal 32 and the second pedal 33 are both provided with sponge pads, the first pedal 32 and the second pedal 33 are respectively connected with the second connecting rod through hinges, and the adjustment of the plane inclination angles of the two pedals is realized.

Referring to fig. 1-3, in some embodiments, the office chair further includes a headrest assembly 4, the headrest assembly 4 includes a headrest 41, a connection arm, and an angle adjuster 42, one end of the connection arm is rotatably connected to the headrest 41, the other end of the connection arm is connected to the angle adjuster 42, and the angle adjuster 42 is mounted on the rear side of the seatback 2. The inclination angle of the connecting arm and the inclination angle of the headrest 41 are adjustable, and the height position of the headrest 41 can be adjusted by adjusting the inclination angle of the connecting arm, so that the headrest 41 can adapt to the head and neck height of a human body conveniently in sitting postures; by adjusting the inclination angle of the headrest 41, the placement posture of the headrest 41 can be adjusted, so that the headrest 41 can be adjusted to be in a horizontal state or a near-horizontal state when a user is in a prone posture state, and at the moment, the headrest 41 can provide support for the chin of the user, reduce neck pressure and keep breathing smooth; the user can adjust the inclination of the headrest 41 by more than 30 degrees in a lying state, and the headrest 41 can be used as a head and neck support when the human body leans back. The connecting arm comprises a first connecting arm 43 and a second connecting arm 44, the first connecting arm 43 is rotatably connected with the second connecting arm 44, the first connecting arm 43 is connected with the headrest 41, the second connecting arm 44 is connected with the angle regulator 42, and the angle between the second connecting arm 44 and the seat back 2 can be regulated by the angle regulator 42. The first connecting support arm 43 and the second connecting support arm 44 are connected through a first rotating shaft, and the included angle between the two connecting support arms is adjusted through the relative rotation of the first connecting support arm 43 and the second connecting support arm 44, so that the height position of the headrest 41 is adjusted; the first connecting arm 43 is connected to the headrest 41 via a second rotation shaft, the tilt posture of the headrest 41 is adjusted, and the headrest 41 is fixed to the first connecting arm 43, and the second connecting arm 44 via a lock member.

In some embodiments, the office chair further comprises a second pedal structure 5, wherein the second pedal structure 5 is connected with the base 1, and is respectively arranged on two opposite sides of the base 1 with the first pedal structure 3, and the second pedal structure 5 is used for placing feet of a user in a sitting or lying posture and supporting legs in a squatting posture. The second pedal structure 5 includes a first folding arm 51, a second folding arm 52, and a third pedal 53, where the first folding arm 51 and the second folding arm 52 are respectively rotatably connected with the base 1, and the first folding arm 51 and the second folding arm 52 are both foldable, so as to facilitate adjusting the height position of the third pedal 53 and facilitate folding and storing the third pedal 53; the two ends of the third pedal 53 are respectively connected with the first folding arm 51 and the second folding arm 52 in a rotating way so as to adjust the inclination angle of the third pedal 53, thereby realizing the adjustment of the height and the front and back positions of the third pedal 53, providing support for feet or knees, and being suitable for different postures such as squatting, kneeling, lying and the like; when not in use, the third pedal 53 is stored by folding the first folding arm 51 and the second folding arm 52.

The first folding arm 51 and the second folding arm 52 have the same structure, and the first folding arm 51 is described as an example. The first folding arm 51 includes a first rod 511 and a second rod 512, the first rod 511 is rotatably connected with the base 1, a gas spring is disposed in the second rod 512, and the gas spring is connected with the third pedal 53. The gas spring can realize the gentle smooth lifting and locking of the first folding arm or the second folding arm, so that the position of the third pedal plate can be easily changed by an operator, and meanwhile, the position can be well kept, and the gas spring has certain damping and meets the requirement of placing two feet of the operator.

The third pedal plate 53 is of a prolate structure, a sponge cushion is arranged on the third pedal plate 53, a central shaft lever is arranged below the third pedal plate 53, two ends of the central shaft lever are respectively connected with the gas spring of the first folding arm 51 and the gas spring of the second folding arm 52 through a rotating shaft structure, and when feet or knees of a user are placed on the third pedal plate 53 and pressure (or manual rotation adjustment) in different directions is applied to the feet or knees of the user, the adjustment of the plane inclination angle of the third pedal plate 53 can be realized.

In some embodiments, the base 1 includes a support frame 11, a chassis 12, legs 13, and wheels 14, the chassis 12 is disposed on the upper side of the support frame 11, the legs 13 are connected to the lower side of the support frame 11, and the wheels 14 are mounted on the ends of the legs 13, so as to facilitate movement of the base 1. The chassis 12 is a thickened explosion-proof chassis 12, can lean back by 135 degrees and lean forward by 20 degrees, is not easy to cause rollover or lean backward, and is in the direction close to the chair back 2; by combining the arrangement of the chair back 2 and the headrest assembly 4, three use modes of lying, kneeling and lying can be realized. The chair legs 13 are five-star chair legs 13, and the diameter of the lower part of the office chair is increased by adopting an angled shape, so that the bearing capacity is strong and the stability is good; the chair wheel 14 is a gravity self-locking wheel, so that the office chair can move at any time and stop at any time, the office chair is prevented from sliding automatically, and the stability is improved. The chassis 12, legs 13 and wheels 14 are all commercially available.

The support frame 11 comprises a support frame 111 and a support rod 112, the support rod 112 is a liftable rod, the lifting rod can be lifted and adjusted by about 10cm, one end of the support rod 112 is rotatably connected with the chassis 12, the other end of the support rod 112 is connected with the chair legs 13, the support frame 111 is arranged outside the support rod 112 at intervals, and the support frame 111 is connected with the chassis 12. The height position of the chassis 12 is conveniently adjusted by lifting the support rods 112 so as to be suitable for users with different heights; by rotation of the chassis 12 relative to the support bar 112, the sitting orientation of the user is conveniently adjusted. The support frame 111 includes a first plate, a second plate, and a third plate, the first plate and the second plate are fixed on opposite sides of the chassis 12, the third plate is connected between the first plate and the second plate, the connection structure 31 of the first pedal structure 3 is connected with the third plate, the first folding arm 51 of the second pedal structure 5 is connected with the first plate, and the second folding arm 52 is connected with the second plate. In some embodiments, the support frame 111 is provided integrally with the chassis 12 by injection molding.

In some embodiments, the base 1 further comprises a seat cushion 15, and the seat cushion 15 is disposed on the chassis 12. The cushion 15 is a bamboo charcoal latex cushion, is made of bamboo charcoal latex with high elasticity and softness, and has the characteristics of ultrahigh elasticity, ventilation, mildew resistance, durability, antibiosis, allergy resistance and ultra silence; the upper layer is nano-cloth, which can prevent water, dirt, oil and bacteria, and can be directly cleaned by alcohol, thereby being convenient and sanitary and ensuring the comfort level of the seat.

In some embodiments, the office chair further comprises an armrest 6 and a recliner, the recliner is mounted on the base 1, the armrest 6 is connected with the base 1 through the recliner, and the armrest 6 can rotate by 90 degrees, so that the armrest 6 can be conveniently folded by rotating. The angle adjuster is an existing continuous angle adjuster, the armrest 6 can be adjusted to any angle within the range of forward rotation of 90 degrees through external force, the armrest 6 can be rotated and stored, and the human body posture is not hindered. The armrests 6 are provided with two armrests which are respectively arranged on two sides of the base 1.

The following describes the manner of using the office chair with reference to the use state in each posture.

Sitting posture: the office chair is rotated to the direction facing the office desk, the second pedal structure 5 is adjusted, the third pedal 53 is rotated and stored in the direction approaching the support frame 11 through the first folding arm 51 and the second folding arm 52, and the third pedal 53 is stored below the chassis 12; by adjusting the headrest assembly 4, the headrest 41 is adapted to the head and neck height of the human body.

Standing: the office chair is moved to the office position which is not affected by gravity and the person stands in front of the desk for office.

Squatting position: the office chair is rotated to the direction opposite to the office desk, the plane inclination angle of the third pedal plate 53, the first folding arm 51 and the second folding arm 52 are adjusted, so that the third pedal plate 53 is arranged at the front edge of the seat cushion 15 and is slightly lower than the seat cushion 15, the two foot plates are arranged, and the rest parts are adjusted according to user experience. Meanwhile, this mode can also be used for a leg-coiling posture by the posture adjustment of the user and the pedal plane inclination angle adjustment of the third pedal 53.

Kneeling gesture: the office chair is rotated to the direction opposite to the office desk, and the thickened explosion-proof chassis 12 is adjusted to incline forwards by 15-20 degrees, and the front direction is the direction approaching to the office desk; by the position of the third foot pedal 53, the third foot pedal 53 is tilted backwards for placement of the knees, and the rest of the components are adjusted according to the user experience.

Lying prone posture: the office chair is rotated to the direction opposite to the office desk, the thickened explosion-proof chassis 12 is adjusted to enable the thickened explosion-proof chassis to lean backwards by 105-135 degrees, a human body faces the chair back 2 to be in an inverted sitting state, the chair back 2 is made to be a chest supporting structure, the headrest 41 is adjusted to a proper height, the headrest 41 is rotated to enable the headrest 41 to be folded at the chair back 2 in a 90-degree state, the headrest 41 can support the chin of a user, the neck pressure is reduced, and the breathing smoothness is kept; the inclination angles of the first foot pedal 32 and the second foot pedal 33 are adjusted, and the two legs can pass through the notch 21 at the lower part of the chair back 2, so that the effect that the two feet are placed at the first foot pedal 32 and the second foot pedal 33 is achieved.

Lying posture: the thickened explosion-proof chassis 12 is adjusted to enable the thickened explosion-proof chassis to lean backwards by 135 degrees, the third pedal 53 is adjusted to extend forwards until the legs can be placed and straightened, the height of the third pedal is parallel to the seat cushion 15 and slightly inclines downwards, the headrest 41 is adjusted to be at a proper height, and the angle of the headrest 41 is adjusted to be 30 degrees by using the angle adjuster 42 for supporting the head and neck of a human body when the human body leans backwards.

In conclusion, the utility model can realize the interconversion of six office postures of sitting, standing, squatting, kneeling, lying and lying, is suitable for various office environments, adjusts a single sitting posture for a long time and reduces the damage of sitting for a long time.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. An office chair, comprising:

a base;

the chair back is connected with the base, notches are formed in two sides of the lower portion of the chair back, supporting wing plates are arranged in two sides of the upper portion of the chair back, and the supporting wing plates extend along the chair back and are arranged in a direction away from the chair back;

the first pedal structure is arranged on the same side of the base with the chair back, and comprises a connecting structure, a first pedal and a second pedal, wherein the first pedal and the second pedal are arranged at intervals and are connected with the connecting structure, and the connecting structure is connected with the base.

2. The office chair of claim 1 further comprising a headrest assembly comprising a headrest, a connecting arm, and an angle adjuster, one end of the connecting arm being rotatably connected to the headrest, the other end of the connecting arm being connected to the angle adjuster, the angle adjuster being mounted to a rear side of the seatback.

3. The office chair of claim 2 wherein the connecting arm comprises a first connecting arm and a second connecting arm, the first connecting arm being rotatably connected to the second connecting arm, the first connecting arm being connected to the headrest, the second connecting arm being connected to the angle adjuster.

4. The office chair of claim 1 further comprising a second footrest structure coupled to the base and disposed on opposite sides of the base from the first footrest structure.

5. The office chair of claim 4, wherein the second pedal structure comprises a first folding arm, a second folding arm and a third pedal, the first folding arm and the second folding arm are respectively and rotatably connected with the base, the first folding arm and the second folding arm are both foldable, and two ends of the third pedal are respectively and rotatably connected with the first folding arm and the second folding arm.

6. The office chair of claim 5, wherein the first folding arm and the second folding arm each comprise a first rod and a second rod, the first rod is rotatably connected with the base, a gas spring is arranged in the second rod, and the gas spring is connected with the third pedal.

7. The office chair of claim 1 wherein the base comprises a support frame, a chassis, legs and wheels, the chassis being disposed on an upper side of the support frame, the legs being connected to a lower side of the support frame, the wheels being mounted to ends of the legs.

8. The office chair of claim 7, wherein the support frame comprises a support frame and a support rod, the support rod is a liftable rod, one end of the support rod is rotatably connected with the chassis, the other end of the support rod is connected with the chair legs, the support frame is arranged outside the support rod at intervals, and the support frame is connected with the chassis.

9. The office chair of claim 7, wherein the base further comprises a seat cushion, the seat cushion being disposed on the chassis.

10. The office chair of claim 1 further comprising an armrest and a recliner, the recliner being mounted on the base, the armrest being connected to the base by the recliner.