CN218500310U

CN218500310U - Office chair with movable backrest

Info

Publication number: CN218500310U
Application number: CN202222359721.4U
Authority: CN
Inventors: 邱星; 盛伟勤
Original assignee: Anji Yuxing Furniture Co ltd
Current assignee: Guangdong Huasheng Furniture Group Co ltd
Priority date: 2022-09-04
Filing date: 2022-09-04
Publication date: 2023-02-21
Anticipated expiration: 2032-09-04

Abstract

The utility model relates to the technical field of office chairs and discloses an office chair with a movable backrest, which comprises a chair seat and an arc-shaped backrest, wherein the chair seat is provided with a connecting seat, the connecting seat is provided with a first supporting seat, the arc-shaped backrest comprises a first backrest and a second backrest, and the first backrest and the second backrest are both arranged on the first supporting seat in a sliding way; the first support seat is provided with a plurality of first sliding grooves and first clamping grooves, the first clamping grooves are communicated with the first sliding grooves, the first backrest and the second backrest are respectively provided with a first sliding block, the first sliding blocks are slidably arranged in the first sliding grooves, the first sliding blocks are provided with first clamping blocks, and the first clamping blocks are matched with the first clamping grooves; an elastic supporting net is arranged on the first backrest. The utility model discloses possess and adjust the back, more laminate user's back muscle and vertebra curve, and then improve the advantage of alleviating fatigue effect.

Description

Office chair with movable backrest

Technical Field

The utility model relates to an office chair technical field specifically is a movable office chair of back.

Background

An office chair refers to various chairs which are convenient for work in daily work and social activities. Office partners divide office chairs into a narrow sense and a broad sense, the narrow sense office chair refers to a backrest chair on which a person sits when working on a table top in a sitting posture state, and the broad sense office chair refers to all chairs used for offices.

At present, most of people do not work for a few hours before sitting on a computer, so that the contact time between back muscles and a backrest is long, but the existing office chairs have the backrest which is a whole and is fixed and cannot be adjusted, the cervical vertebra part of the back is concave, the planar backrest cannot be attached to the curve of the spine of the back for supporting, and the situations of back ache and spine expansion can occur in the past.

SUMMERY OF THE UTILITY MODEL

The utility model provides a movable office chair of back possesses the regulation back, the beneficial effect of user's back muscle and vertebra concave recess of more laminating has solved the back of the chair of the current office chair that mentions among the above-mentioned background art and all is a massive back, is immovable, can not adjust, and back cervical vertebra place is the indent, and the curve of the backbone at the back can not be laminated to the planar back of the chair supports, and in the long run, back ache can appear, the problem of the bloated condition of vertebra.

The utility model provides a following technical scheme: a movable office chair with a backrest comprises a chair seat and an arc-shaped backrest, wherein a connecting seat is installed on the chair seat, a first supporting seat is installed on the connecting seat, the arc-shaped backrest comprises a first backrest and a second backrest, and the first backrest and the second backrest are installed on the first supporting seat in a sliding mode;

the first support seat is provided with a first sliding groove and a plurality of first clamping grooves, the first clamping grooves are communicated with the first sliding groove, the first backrest and the second backrest are respectively provided with a first sliding block, the first sliding block is slidably mounted inside the first sliding groove, a first clamping block is mounted on the first sliding block, and the first clamping block is matched with the first clamping grooves;

an elastic supporting net is arranged on the first backrest, one end of the elastic supporting net is connected with the side wall of the first backrest, and the other end of the elastic supporting net is connected with the side wall of the second backrest.

As an alternative of the movable office chair with a backrest, wherein: the first backrest and the second backrest are arranged in the same mode, and a curved rubber layer is arranged on the first backrest.

As an alternative of the movable office chair with a backrest, wherein: the support plate is installed on the connecting seat, and the headrest is installed on the support plate.

As an alternative of the movable office chair with a backrest, wherein: the utility model discloses a chair, including seat support, regulation seat, U type connecting rod, handrail, bracing piece, regulation seat, U type connecting rod, handrail, it is simple and easy to operate to adjust the seat.

As an alternative of the movable office chair with a backrest, wherein: the adjusting seat is installed on the supporting rod in a threaded mode, a through hole is formed in the adjusting seat, and two ends of the U-shaped connecting rod penetrate through the through hole and are connected with the handrail;

and the adjusting seat is provided with a locking bolt in a threaded manner.

As an alternative of the movable office chair with a backrest, wherein: the chair comprises a chair seat and is characterized in that a base is installed on the chair seat, a first rotating rod is installed on the base, a second sleeve is installed on the first rotating rod through threads, chair legs are installed on the second sleeve, and sliding wheels are installed on the chair legs.

As an alternative of the movable back rest office chair of the present invention, wherein: the first rotating rod is provided with an external thread, the second sleeve is internally provided with an internal thread, and the internal thread is matched with the external thread.

As an alternative of the movable office chair with a backrest, wherein: the base is provided with a plurality of reinforcing ribs, the reinforcing ribs are connected with the chair seat, and the base and the connecting seat are bolted through a first bolt.

The utility model discloses possess following beneficial effect:

1. this movable office chair of back, through installing mobilizable first back and second back slidable mounting on first supporting seat, make first back and second back can slide in first spout, and fix in first draw-in groove through first fixture block card, the cooperation is installed the backbone position that the curved surface rubber layer is used for laminating human back on first back and the second back, curved arc back is when making contact back muscle, more can relax, and the elastic rubber in curved surface rubber layer, can conflict at the indent of backbone or the arch of scapula cooperate the support, it is more comfortable when making people use, alleviate fatigue.

2. This movable office chair of back, and carry out the junction at first back and second back through the elastic support net, conveniently fold, and the elastic support net is more ventilative, can move about the first back and the second back of slip arc back in summer, conveniently dispel the heat.

3. This movable office chair of back adjusts the seat and is used for fixed U type connecting rod, not hard up locking bolt for adjust the first fixing base and the separation of second fixing base of seat, make the through-hole widen, and then U type connecting rod conveniently removes in the through-hole, and then conveniently adjust the height of U type connecting rod, and then adjust the height of handrail, improve user's use comfort.

Drawings

Fig. 1 is a schematic view of a first three-dimensional viewing angle of the present invention.

Fig. 2 is a schematic side view of the structure of the present invention.

Fig. 3 is an enlarged schematic view of a structure in fig. 2 according to the present invention.

Fig. 4 is a schematic structural front view of the first chute and the first slot of the present invention.

Fig. 5 is a schematic view showing the cross-sectional view of the adjusting base and the U-shaped connecting rod according to the present invention.

Fig. 6 is a schematic diagram of a second perspective view of the structure of the present invention.

In the figure: 1. a chair seat; 2. an arc-shaped backrest; 3. a connecting seat; 4. a first support base; 5. a first backrest; 6. a second backrest; 7. a first chute; 8. a first card slot; 9. a first slider; 10. a first clamping block; 11. a curved surface rubber layer; 12. a support plate; 13. a headrest; 14. a support bar; 15. an adjusting seat; 16. a U-shaped connecting rod; 17. a handrail; 18. a through hole; 19. locking the bolt; 20. a base; 21. a first rotating lever; 22. a second sleeve; 23. a chair leg; 24. a sliding wheel; 25. an external thread; 26. an internal thread; 27. a first bolt; 28. an elastic support net; 29. reinforcing ribs; 31. a first fixed seat; 32. a second fixed seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The back of the existing office chair is a whole backrest which is fixed and can not be adjusted, the cervical vertebra of the back is concave, the planar back of the chair can not be attached to the curve of the spine of the back for supporting, and the situations of back ache and spine expansion can occur in the past.

The utility model provides a following technical scheme: an office chair with a movable backrest is disclosed, please refer to fig. 1-6, and comprises a chair seat 1 and an arc-shaped backrest 2, wherein a connecting seat 3 is installed on the chair seat 1, a first supporting seat 4 is installed on the connecting seat 3, the arc-shaped backrest 2 comprises a first backrest 5 and a second backrest 6, and the first backrest 5 and the second backrest 6 are both installed on the first supporting seat 4 in a sliding manner;

a first sliding groove 7 and a first clamping groove 8 are formed in the first supporting seat 4, a plurality of first clamping grooves 8 are formed in the first supporting seat, the first clamping grooves 8 are communicated with the first sliding groove 7, first sliding blocks 9 are arranged on the first backrest 5 and the second backrest 6 respectively, the first sliding blocks 9 are installed inside the first sliding grooves 7 in a sliding mode, first clamping blocks 10 are installed on the first sliding blocks 9, and the first clamping blocks 10 are matched with the first clamping grooves 8;

wherein: the first backrest 5 and the second backrest 6 are arranged in the same way, and the first backrest 5 is provided with a curved rubber layer 11.

Through installing mobilizable

first back

5 and 6 slidable mounting of second back on first supporting seat 4, make first back 5 and second back 6 can slide in first spout 7, and fix in first draw-in groove 8 through first fixture block 10 card, the cooperation is installed on first back 5 and the second back 6 and curved surface rubber layer 11 is used for laminating the vertebra position of human back, curved arc back 2 is when making contact back muscle, more can relax, and curved surface rubber layer 11 has elastic rubber, can conflict at the indent of vertebra or the arch of scapula cooperation support, it is more comfortable when making people use, alleviate fatigue.

Example 2

In this embodiment, an improvement is made on the basis of embodiment 1, specifically, referring to fig. 1 to 6, an elastic supporting net 28 is installed on the first backrest 5, one end of the elastic supporting net 28 is connected to the side wall of the first backrest 5, and the other end of the elastic supporting net 28 is connected to the side wall of the second backrest 6.

And the elastic supporting net 28 is arranged at the joint of the first backrest 5 and the second backrest 6, so that the folding is convenient, the elastic supporting net 28 is relatively breathable, and the first backrest 5 and the second backrest 6 of the arc-shaped backrest 2 can movably slide in summer, so that the heat dissipation is convenient.

Example 3

This embodiment is an improvement description made on the basis of embodiment 1, specifically, please refer to fig. 1-6, in which: a support plate 12 is arranged on the connecting seat 3, and a headrest 13 is arranged on the support plate 12.

The installation headrest 13 is convenient to lean on the arc back 2 to support the head and neck, and the comfort level is improved.

Example 4

The armrests are used for supporting arms, and the height of the armrests cannot be adjusted by some office chairs.

This embodiment is an improved description made on the basis of embodiment 1, and specifically, please refer to fig. 1 to 6, in which: the chair seat 1 is provided with a supporting rod 14, the supporting rod 14 is provided with an adjusting seat 15, the adjusting seat 15 is sleeved with a U-shaped connecting rod 16, and the U-shaped connecting rod 16 is provided with a handrail 17.

Wherein: the adjusting seat 15 is installed on the supporting rod 14 in a threaded manner, a through hole 18 is formed in the adjusting seat 15, and two ends of the U-shaped connecting rod 16 penetrate through the through hole 18 and are connected with the handrail 17;

the adjusting seat 15 is provided with a locking bolt 19 in a threaded manner.

Adjust seat 15 and include first fixing base 31 and second fixing base 32, the arc wall is seted up to one side that first fixing base 31 and second fixing base 32 are connected, form through-hole 18 together, fix first fixing base 31 and second fixing base 32 at rotatory locking bolt 19, and then fixed U type connecting rod 16, not hard up locking bolt 19, make first fixing base 31 and the separation of second fixing base 32, make 18 widen of through-hole, and then U type connecting rod 16 conveniently removes in 18 in the through-hole, and then conveniently adjust U type connecting rod 16's height, and then adjust handrail 17's height, improve user comfort.

Example 5

This embodiment is an improved description made on the basis of embodiment 1, and specifically, please refer to fig. 1 to 6, in which: the chair seat 1 is provided with a base 20, the base 20 is provided with a first rotating rod 21, the first rotating rod 21 is provided with a second sleeve 22 through threads, the second sleeve 22 is provided with chair legs 23, and the chair legs 23 are provided with sliding wheels 24.

Wherein: the first rotating rod 21 is provided with an external thread 25, the second sleeve 22 is internally provided with an internal thread 26, and the internal thread 26 is matched with the external thread 25.

Wherein: a plurality of reinforcing ribs 29 are arranged on the base 20, the reinforcing ribs 29 are connected with the chair seat 1, and the base 20 and the connecting seat 3 are bolted through first bolts 27.

The height of the seat 1 is adjusted by the screw connection of the first rotating rod 21 and the second sleeve 22, and the supporting force and rigidity on the seat 1 are enhanced by the reinforcing ribs 29.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the technical principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a movable office chair of back, includes seat support (1) and arc back (2), its characterized in that: the chair comprises a chair seat (1), wherein a connecting seat (3) is installed on the chair seat (1), a first supporting seat (4) is installed on the connecting seat (3), the arc-shaped backrest (2) comprises a first backrest (5) and a second backrest (6), and the first backrest (5) and the second backrest (6) are installed on the first supporting seat (4) in a sliding mode;

a first sliding groove (7) and a first clamping groove (8) are formed in the first supporting seat (4), a plurality of first clamping grooves (8) are formed in the first clamping groove (8), the first clamping groove (8) is communicated with the first sliding groove (7), first sliding blocks (9) are arranged on the first backrest (5) and the second backrest (6), the first sliding blocks (9) are installed inside the first sliding groove (7) in a sliding mode, first clamping blocks (10) are installed on the first sliding blocks (9), and the first clamping blocks (10) are matched with the first clamping grooves (8);

install elastic support net (28) on first back (5), the one end of elastic support net (28) is connected with the lateral wall of first back (5), the other end of elastic support net (28) is connected with the lateral wall of second back (6).

2. The movable back office chair of claim 1, wherein: the first backrest (5) and the second backrest (6) are arranged in the same way, and the first backrest (5) is provided with a curved rubber layer (11).

3. The movable back office chair of claim 1, wherein: the connecting seat (3) is provided with a supporting plate (12), and the supporting plate (12) is provided with a headrest (13).

4. The movable back office chair of claim 1, wherein: be equipped with bracing piece (14) on seat support (1), install on bracing piece (14) and adjust seat (15), it is equipped with U type connecting rod (16) to adjust the cover on seat (15), install handrail (17) on U type connecting rod (16).

5. The movable back office chair of claim 4, wherein: the adjusting seat (15) is installed on the supporting rod (14) in a threaded mode, a through hole (18) is formed in the adjusting seat (15), and the U-shaped connecting rod (16) penetrates through the through hole (18) and is connected with the handrail (17);

and a locking bolt (19) is arranged on the adjusting seat (15) in a threaded manner.

6. The movable back office chair of claim 1, wherein: install base (20) on seat support (1), install first bull stick (21) on base (20), second sleeve (22) are installed to screw thread on first bull stick (21), install chair leg (23) on second sleeve (22), install movable pulley (24) on chair leg (23).

7. The convertible back office chair of claim 6, wherein: be equipped with external screw thread (25) on first bull stick (21), second sleeve (22) is inside to be equipped with internal thread (26), internal thread (26) and external screw thread (25) cooperate.

8. The movable back office chair of claim 6, wherein: a plurality of reinforcing ribs (29) are installed on the base (20), the reinforcing ribs (29) are connected with the chair seat (1), and the base (20) and the connecting seat (3) are bolted through first bolts (27).