CN210581753U

CN210581753U - Ergonomic chair with adjustable

Info

Publication number: CN210581753U
Application number: CN201921150732.3U
Authority: CN
Inventors: 吕拥锋
Original assignee: Zhejiang Anji Yongfeng Furniture Co Ltd
Current assignee: Zhejiang Anji Yongfeng Furniture Co Ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-05-22
Anticipated expiration: 2029-07-22

Abstract

The utility model relates to a chair technical field especially relates to an ergonomic chair with adjustable. The universal seat comprises a seat body and handrails arranged at two ends of the seat body respectively, wherein each handrail comprises a fixing piece arranged on the seat body and a handrail plate connected with the fixing piece through a universal structure, the universal structure comprises a first fork and a second fork which are Y-shaped, and the first fork and the second fork respectively comprise a main part and a branch part; the end part of the fixing piece is provided with a trunk part of the first section fork, the armrest plate is vertically provided with a trunk part of the second section fork, the branch part of the first section fork and the branch part of the second section fork are connected through a cross shaft, and the end part of the cross shaft is arranged on the branch part of the first section fork or the second section fork through a rotating bearing. The utility model provides a handrail can set up in the shaft part fore-and-aft rotation of first festival fork branch portion around the cross, also can set up in the shaft part left and right sides rotation of second festival fork branch portion around the cross, has realized the multi-angle regulatory function of handrail, and simple structure, easy and simple to handle, long service life.

Description

Ergonomic chair with adjustable

Technical Field

The utility model relates to a chair technical field especially relates to an ergonomic chair with adjustable.

Background

At present, office time of office people is generally more than eight hours, office people spend on chairs about 60% of the time every day, due to sedentary sitting, unhealthy chairs and incorrect sitting postures are added, 75% of office people suffer from diseases such as cervical spondylosis, lumbar intervertebral disc protrusion, scoliosis and back pain in different degrees, along with the progress of science and technology, the improvement of living standard of people is realized, healthy life gradually becomes the focus of people's attention, and healthy office chairs which accord with human mechanics can effectively reduce the probability of suffering from the diseases.

The armrests in the existing ergonomic chair can only adjust the height or/and length of the armrests, only have a fixed supporting angle, and cannot realize the rotation adjustment of different angles. However, different users have different heights and postures, and different requirements for sitting comfort, so that the angle of the armrest is different, and therefore, an ergonomic chair with adjustable armrest angles is urgently needed to improve the experience comfort of the users.

Patent document CN201620253540.5 discloses an adjustable armchair, in which the armrest angle deflection movable member comprises a hollow sleeve, a rotating shaft and a rotating rod, the sleeve comprises a first sleeve and a second sleeve, and the first sleeve is vertically welded with the second sleeve communicated with the first sleeve; the rotating shaft is arranged in the second sleeve; the rotating shaft is connected with the second sleeve; the other end of the rotating shaft is provided with a groove and extends out of the second sleeve, the rotating rod is connected in the groove, and the upper handrail cover is arranged on the rotating rod; the angle formed by the deflection of the upper handrail cover and the second sleeve is 40 degrees. The utility model discloses a when carrying out the handrail and adjusting, no matter be the rotation axis at the sleeve internal friction, still the rotary rod is at the recess internal friction, all produces wearing and tearing easily, life weak point. Simultaneously, this utility model's turned angle does not obtain the restriction, only exerts some external force to the rotating shaft, just can make the rotating shaft incessantly rotate in the sleeve, has further increased its wearing and tearing, has reduced life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problems and provides an ergonomic chair with adjustable armrest angle and long service life.

The technical scheme of the utility model for solving the problems is that, an adjustable ergonomic chair is provided, which comprises a chair seat and handrails respectively arranged at two ends of the chair seat, wherein the handrails comprise a fixing piece arranged on the chair seat and a handrail plate connected with the fixing piece through a universal structure, the universal structure comprises a first section fork and a second section fork which are Y-shaped, and the first section fork and the second section fork respectively comprise a main part and a branch part; the end part of the fixing piece is provided with a main part of the first yoke, the handrail plate is vertically provided with a main part of the second yoke, the branch part of the first yoke and the branch part of the second yoke are connected through a cross shaft, and the end part of the cross shaft is arranged on the branch part of the first yoke or the second yoke through a rotating bearing.

Preferably, the fixing part comprises a first fixing block connected with the chair seat, a second fixing block connected with the universal structure and a telescopic rod connected with the first fixing block and the second fixing block.

Preferably, the telescopic rod comprises a sleeve and an inner tube movably inserted in the sleeve, the sleeve is axially provided with a plurality of through holes, and the outer wall of the inner tube is connected with a convex button capable of passing through the through holes through a spring.

Preferably, the chair further comprises a backrest, and the backrest is connected with the chair seat through an angle adjuster.

Preferably, still include waist back and head rest, back middle part is equipped with vertical bar pore, waist back and head rest are connected with the connecting piece respectively, the tip of connecting piece passes bar pore and forms the regulation end.

Preferably, the adjusting end is provided with a connecting block, one surface of the solid part of the backrest, which is far away from the chair seat, is provided with a sliding chute parallel to the strip-shaped pore channel, at least two sliding blocks are arranged in the sliding chute, and two ends of the sliding blocks, which are parallel to the sliding chute, are respectively clamped in grooves formed in the inner side surface of the sliding chute through convex blocks; the connecting block is connected with the sliding block through an elastic piece.

Preferably, the sliding block is provided with a locking buckle, and the backrest solid part is provided with a plurality of button holes which can be connected with the locking buckle.

Preferably, the waist is leaned on and the head rest respectively including with the connecting plate that the connecting piece is connected with set up in the connecting plate and be close to the flexible pad of seat support one side, the protruding arc that forms in connecting plate middle part to the direction of connecting piece.

The utility model has the advantages that:

1. when the user sits on the ergonomic chair of this application, the arm is put on the handrail, and under the effect of universal structure, the handrail can set up in the shaft part forward and backward rotation of first section fork branch portion around the universal joint pin, also can set up in the shaft part of second section fork branch portion around the universal joint pin and rotate about, has realized the multi-angle regulatory function of handrail, simple structure, easy and simple to handle. Meanwhile, due to the structural problem of the joint fork, the handrail can only rotate within a certain range due to the stop of the other joint fork after rotating a certain angle, and the problems that the handrail excessively rotates due to external force, the abrasion is increased and the service life is short are solved.

2. The mounting is equipped with the telescopic link for the handrail can lifting adjusting. Meanwhile, the locking structure arranged on the telescopic rod can help the handrail to be adjusted to a proper height and then be locked in time.

3. The angle regulator makes the inclination angle of the backrest adjustable so as to meet the requirements of users under different conditions.

4. The waist rest and the headrest are arranged, so that the use comfort of the ergonomic chair is improved. The waist rest and the headrest can be adjusted up and down and back and forth, so that the waist rest and the headrest always support a human body, and the use comfort of the ergonomic chair is further improved.

Drawings

FIG. 1 is a schematic view of an adjustable ergonomic chair;

FIG. 2 is a front view of an adjustable ergonomic chair armrest;

FIG. 3 is a schematic view of a universal structure in an adjustable ergonomic chair;

FIG. 4 is a schematic view of the structure of the telescoping rod in an adjustable ergonomic chair;

FIG. 5 is a schematic view of the backrest of an adjustable ergonomic chair;

FIG. 6 is a schematic view of the attachment of a back rest and a lumbar or headrest in an adjustable ergonomic chair;

in the figure: 1-chair seat, 2-armrest, 21-fixing piece, 211-sleeve, 212-inner tube, 213-spring, 214-convex button, 22-armrest plate, 23-first section fork, 24-second section fork, 251-main part, 252-branch part, 26-cross shaft, 3-backrest, 31-angle regulator connection, 32-strip-shaped pore channel, 33-connecting piece, 331-connecting block, 332-elastic piece, 333-locking buckle, 334-button hole, 34-sliding groove, 35-sliding block, 4-waist rest, 5-headrest, 41-connecting plate and 42-flexible pad.

Detailed Description

The following are embodiments of the present invention and the accompanying drawings are used to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

An adjustable ergonomic chair, as shown in fig. 1, comprises a chair seat 1 and armrests 2 respectively disposed at two ends of the chair seat 1. The chair further comprises a backrest 3, and the backrest 3 is connected with the chair seat 1 through an angle adjuster 31.

As shown in fig. 2 and 3, the armrest 2 includes a fixing member 21 provided on the seat 1 and an armrest plate 22 connected to the fixing member 21 through a universal structure, the universal structure includes a first yoke 23 and a second yoke 24 each having a Y shape, and the first yoke 23 and the second yoke 24 respectively include a main portion 251 and a branch portion 252; the end of the fixed member 21 is provided with a trunk portion of the first yoke 23, the armrest plate 22 is provided with a trunk portion of the second yoke 24 perpendicularly, the branch portion of the first yoke 23 and the branch portion of the second yoke 24 are connected by a cross 26, and the end of the cross 26 is provided with a rotary bearing at the branch portion of the first yoke 23 or the second yoke 24.

When the user sits on the ergonomic chair of this application, the arm is put on handrail 2, according to the direction this moment, under universal structure's effect, handrail 2 can set up in the shaft part of first festival fork 23 branch portion around cross 26 and rotate, also can set up in the shaft part of second festival fork 24 branch portion around cross 26 and rotate about, has realized the multi-angle regulatory function of handrail, simple structure, easy and simple to handle.

In order to realize the lifting function, the fixing member 21 includes a first fixing block connected to the seat, a second fixing block connected to the universal structure, and a telescopic rod connecting the first fixing block and the second fixing block. As shown in fig. 4, the telescopic rod includes a sleeve 211 and an inner tube 212 movably inserted in the sleeve 211, the sleeve 211 has a plurality of through holes in an axial direction, and a button 214 capable of passing through the through holes is connected to an outer wall of the inner tube 212 through a spring 213.

In this embodiment, the utility model further comprises a waist rest 4 and a headrest 5, as shown in fig. 5, a vertical strip-shaped duct 32 is arranged in the middle of the backrest 3, the waist rest 4 and the headrest 5 are respectively connected with a connecting piece 33, and the end of the connecting piece 33 passes through the strip-shaped duct 32 to form an adjusting end. The control connecting piece 33 moves up and down along the strip-shaped hole 32, so that the waist rest 4 or the headrest 5 can be driven to adjust up and down.

As shown in fig. 6, the adjusting end is provided with a connecting block 331, one side of the solid portion of the backrest 3, which is far away from the seat 1, is provided with a sliding slot 34 parallel to the strip-shaped hole channel 32, at least two sliding blocks 35 are arranged in the sliding slot 34, and two ends of the sliding blocks 35, which are parallel to the sliding slot 34, are respectively clamped in grooves formed in the inner side surface of the sliding slot 34 through bumps; the connecting block 331 is connected to the slider 35 by an elastic member 332 so that the lumbar support 4 and the headrest 5 can move back and forth.

In addition, after the up-and-down adjustment of the lumbar support 4 or the headrest 5 is completed, the adjusted position needs to be locked, so that the sliding block 35 is provided with a locking buckle 333, and the solid part of the backrest 3 is provided with a plurality of button holes 334 which can be connected with the locking buckle 333.

Furthermore, the lumbar support 4 and the headrest 5 respectively comprise a connecting plate 41 connected with the connecting piece 33 and a flexible pad 42 arranged on one side of the connecting plate 41 close to the seat 1, and the middle part of the connecting plate 41 protrudes towards the direction of the connecting piece 33 to form an arc-shaped plate so as to match with the waist of a human body.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an ergonomic chair with adjustable, includes seat support (1) and sets up respectively in handrail (2) at seat support (1) both ends, its characterized in that: the armrest (2) comprises a fixing piece (21) arranged on the seat (1) and an armrest plate (22) connected with the fixing piece (21) through a universal structure, the universal structure comprises a first yoke (23) and a second yoke (24) which are Y-shaped, and the first yoke (23) and the second yoke (24) respectively comprise a main part (251) and a branch part (252); the end part of the fixing piece (21) is provided with a main part of the first yoke (23), the armrest plate (22) is vertically provided with a main part of the second yoke (24), the branch part of the first yoke (23) and the branch part of the second yoke (24) are connected through a cross shaft (26), and the end part of the cross shaft (26) is arranged on the branch part of the first yoke (23) or the second yoke (24) through a rotating bearing.

2. An adjustable ergonomic chair as claimed in claim 1, wherein: the fixing piece (21) comprises a first fixing block connected with the chair seat, a second fixing block connected with the universal structure and a telescopic rod connected with the first fixing block and the second fixing block.

3. An adjustable ergonomic chair as claimed in claim 2, wherein: the telescopic rod comprises a sleeve (211) and an inner tube (212) movably inserted into the sleeve (211), wherein a plurality of through holes are axially formed in the sleeve (211), and the outer wall of the inner tube (212) is connected with a convex button (214) capable of penetrating through the through holes through a spring (213).

4. An adjustable ergonomic chair as claimed in claim 1, wherein: the chair further comprises a backrest (3), and the backrest (3) is connected with the chair seat (1) through an angle adjuster (31).

5. An adjustable ergonomic chair as claimed in claim 4, wherein: still include waist by (4) and head rest (5), back (3) middle part is equipped with vertical bar pore (32), waist by (4) and head rest (5) are connected with connecting piece (33) respectively, the tip of connecting piece (33) passes bar pore (32) and forms the regulation end.

6. An adjustable ergonomic chair as claimed in claim 5, wherein: the adjusting end is provided with a connecting block (331), one surface of the solid part of the backrest (3) far away from the chair seat (1) is provided with a sliding groove (34) parallel to the strip-shaped pore canal (32), at least two sliding blocks (35) are arranged in the sliding groove (34), and two ends of the sliding blocks (35) parallel to the sliding groove (34) are respectively clamped in grooves formed in the inner side surface of the sliding groove (34) through convex blocks; the connecting block (331) is connected with the sliding block (35) through an elastic piece (332).

7. An adjustable ergonomic chair as claimed in claim 6, wherein: the sliding block (35) is provided with a locking buckle (333), and the solid part of the backrest (3) is provided with a plurality of button holes (334) which can be connected with the locking buckle (333).

8. An adjustable ergonomic chair as claimed in claim 5, wherein: waist lean on (4) and head rest (5) respectively include with connecting plate (41) that connecting piece (33) are connected with set up in connecting plate (41) and be close to flexible pad (42) of seat support (1) one side, connecting plate (41) middle part is protruding to the direction of connecting piece (33) and is formed the arc.