CN217218538U

CN217218538U - Comfortable office chair with adjustable waist rest

Info

Publication number: CN217218538U
Application number: CN202220631857.3U
Authority: CN
Inventors: 陈旭辉
Original assignee: Anji Aosen Intelligent Furniture Co ltd
Current assignee: Anji Aosen Intelligent Furniture Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-19
Anticipated expiration: 2032-03-23

Abstract

A comfortable office chair with an adjustable waist rest comprises oppositely arranged bases, wherein a cushion and a back plate are arranged between the oppositely arranged bases; the backrest assembly comprises a fitting part and a moving part which are connected, and the moving part is movably connected to the back plate; the back plate is provided with a clamping piece, and the moving part is positioned between the clamping piece and the back plate; a plurality of convex ribs arranged along the length direction are formed on the moving part, positioning ribs are formed on the clamping piece, and the positioning ribs are clamped between the adjacent convex ribs; the top of the moving part is provided with a supporting part connected with the middle part of the fitting part; compared with the prior art, through setting up joint spare and removal portion, through the position of adjusting removal portion for the protruding muscle of joint spare corresponds different location muscle, thereby plays regulation and locking to removal portion and position, adjusts and locks the position of laminating portion in step.

Description

Comfortable office chair with adjustable waist rest

Technical Field

The utility model belongs to the technical field of the office chair, especially, comfortable type office chair with adjustable waist leans on.

Background

The chair is an essential tool for people to study, live and work at ordinary times, particularly a swivel chair and an I-shaped chair appear, the backrest of the swivel chair and the I-shaped chair generally have the human engineering principle, the backrest of the swivel chair has better wrapping performance on the back of a person, and a comfortable environment is provided for a user.

The existing swivel chair and I-shaped chair generally adopt a whole backrest, the backrest is fixedly connected with a cushion, the height of the backrest cannot be adjusted, and meanwhile, the width of the backrest cannot be adjusted, so that when people with different body shapes use the swivel chair or the I-shaped chair, better backrest experience feeling cannot be obtained due to the difference of body shapes, discomfort feeling of the back can be caused sometimes, and unnecessary damage can be caused to the back in the past for a long time.

Chinese patent No. CN211269534 discloses a chair with adjustable backrest, which comprises a backrest assembly, a backrest connection assembly with one end fixedly connected with the backrest assembly, a seat plate assembly fixedly connected with the other end of the backrest assembly, and a supporting seat assembly fixed below the seat plate assembly, and is characterized in that: backrest coupling assembling include a Y type connecting piece, both sides respectively are equipped with a U type hole about the Y type connecting piece, Y type connecting piece lower extreme fixed connection connecting rod, the vertical fixing of connecting rod lower extreme is on a fixed block, the fixed block is fixed in seat subassembly one side, the backrest subassembly including controlling two backs, be equipped with the screw on the back, use rotatory bolt to pass respectively the U type hole that sets up on the Y type connecting piece with control two backs on the screw thread fixed connection that set up.

Above-mentioned this kind of chair of disclosing passes through the cooperation between connecting rod and the regulation hole, through the regulation hole of connecting rod cooperation different positions to the realization is adjusted the height of back coupling assembling, thereby realizes the adjustment of back, and this kind of mode is whole to carry out the altitude mixture control to the back, and this just makes whole back intensity meet the end, and causes the deformation of back easily under the back atress condition, thereby influences the use of back.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the defect among the above-mentioned prior art, provide one kind and be convenient for adjust, simple structure, support effect good waist leans on adjustable comfortable type office chair.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a comfortable office chair with an adjustable waist rest comprises oppositely arranged bases, and a cushion and a back plate are arranged between the oppositely arranged bases; the backrest assembly comprises a fitting part and a moving part which are connected, and the moving part is movably connected to the back plate; the back plate is provided with a clamping piece, and the moving part is positioned between the clamping piece and the back plate; a plurality of convex ribs arranged along the length direction are formed on the moving part, positioning ribs are formed on the clamping piece, and the positioning ribs are clamped between the adjacent convex ribs; the top of the moving part is provided with a supporting part connected with the middle part of the fitting part.

As a preferred scheme of the utility model, laminating portion is including two laminating lamellar bodies that are connected, and is formed with the connection piece between two laminating lamellar bodies, and the supporting part is connected in the connection piece top.

As a preferred scheme of the utility model, the laminating lamellar body is hollow out construction, and removal portion both sides are formed with the connecting rod of relative setting, and the connecting rod is connected in laminating lamellar body middle part.

As an optimized scheme of the utility model, the connecting rod is the bending structure, is formed with the clearance between laminating portion and the removal portion.

As a preferred scheme of the utility model, the removal portion middle part is formed with the rectangular groove of vertical setting, joint spare middle part and backplate fixed connection, and joint spare and backplate junction are located the rectangular inslot.

As the utility model discloses a preferred scheme, protruding muscle is formed in rectangular groove both sides, and protruding muscle sets up along the horizontal direction, and protruding muscle is arranged along the length direction equidistance in rectangular groove.

As an optimized proposal of the utility model, the surface of the moving part is provided with a limit groove, and the whole joint part is positioned in the limit groove.

As an optimized scheme of the utility model, the base fixed connection of cushion bottom both ends and relative setting.

As an optimized scheme of the utility model, backplate bottom both ends and the relative base fixed connection who sets up.

As a preferred scheme of the utility model, still be equipped with the handrail on the base.

The beneficial effects of the utility model are that, compare with prior art: through setting up joint spare and removal portion, through the position of adjusting removal portion for the protruding muscle of joint spare corresponds different location muscle, thereby plays regulation and locking to removal portion and position, adjusts and locks the position of laminating portion in step, and the setting of supporting part simultaneously makes to be formed with gappedly between removal portion and the laminating portion, and the atress of the laminating portion of being convenient for warp, also prevents that the laminating portion from breaking under the effect of supporting part.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front view of the present invention;

FIG. 4 is a schematic structural view of the backrest assembly;

FIG. 5 is a top view of the backrest assembly;

FIG. 6 is a front view of the back assembly;

reference numbers in the figures: the seat comprises a base 1, armrests 1-1, a seat cushion 2, a back plate 3, a backrest component 4, a fitting part 5, a fitting sheet body 5-1, a connecting sheet 5-2, a moving part 6, a limiting groove 6-1, a convex rib 6-2, a long strip groove 6-3, a connecting rod 7, a supporting part 8, a clamping part 9 and a positioning rib 9-1.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1-6, a comfortable office chair with adjustable waist rest comprises oppositely arranged bases 1, and a cushion 2 and a back plate 3 are arranged between the oppositely arranged bases 1; the backrest component 4 with adjustable height is arranged on the back plate 3, the backrest component 4 comprises a fitting part 5 and a moving part 6 which are connected, and the moving part 6 is movably connected to the back plate 3; the back plate 3 is provided with a clamping piece 9, and the moving part 6 is positioned between the clamping piece 9 and the back plate 3; a plurality of convex ribs 6-2 arranged along the length direction are formed on the moving part 6, positioning ribs 9-1 are formed on the clamping piece 9, and the positioning ribs 9-1 are clamped between the adjacent convex ribs 6-2; the top of the moving part 6 is provided with a supporting part 8 connected with the middle part of the attaching part 5.

Base 1 is bordure formula structure, and base 1 is being connected the in-process with cushion 2 and backplate 3, and base 1 parcel cushion 2 and backplate 3 set up, and back subassembly 4 can move on backplate 3, through the position of adjusting back subassembly 4 for operator's back department corresponds the back subassembly 4 of different positions.

The attaching part 5 comprises two attached sheet bodies 5-1 which are connected, a connecting sheet 5-2 is formed between the two attached sheet bodies 5-1, the supporting part 8 is connected to the top of the connecting sheet 5-2, the connecting sheet 5-2 is of a bending structure and corresponds to the spine of a human body, and the two attached sheet bodies 5-1 correspond to the back of the human body, so that the whole body has better stability and attaching performance when contacting with the back of the human body, and the back of the human body is more comfortable.

The laminating piece body 5-1 is of a hollow structure, the two sides of the moving part 6 are provided with the connecting rods 7 which are oppositely arranged, the connecting rods 7 are connected to the middle part of the laminating piece body 5-1, the connecting rods 7 are of a bending structure, and a gap is formed between the laminating part 5 and the moving part 6.

Therefore, a deformation space is formed between the attaching portion 5 and the moving portion 6, the attaching portion 5 is convenient to deform, and when a human body is in a backward leaning state, the attaching portion 5 is tightly attached to the back of the human body, and the stability is better.

Simultaneously under the effect of supporting part 8, support laminating portion 5, prevent that laminating portion 5 deformation process from breaking for whole has better stability.

The middle part of the moving part 6 is provided with a vertically arranged long groove 6-3, the middle part of the clamping piece 9 is fixedly connected with the back plate 3, the joint of the clamping piece 9 and the back plate 3 is positioned in the long groove 6-3, the convex ribs 6-2 are formed on two sides of the long groove 6-3, the convex ribs 6-2 are arranged along the horizontal direction, and the convex ribs 6-2 are equidistantly arranged along the length direction of the long groove 6-3.

The middle of the clamping piece 9 is fixedly connected with the back plate 3 through the bolts, at least two bolts are formed between the middle of the clamping piece 9 and the back plate 3, the clamping piece 9 is prevented from rotating, the bolts are located in the long strip grooves 6-3, when the moving portion 6 moves, the long strip grooves 6-3 move synchronously along with the moving portion 6, after the moving portion 6 moves to a certain position, the bolts abut against the end portions of the long strip grooves 6-3, and the moving position of the moving portion 6 is limited.

The moving part 6 is located between the clamping part 9 and the back plate 3, and the moving part 6 has certain tightness between the clamping part 9 and the back plate 3, and the position of the moving part 6 is manually adjusted, so that the position of the attaching part 5 is synchronously adjusted.

The surface of the moving part 6 is provided with a limiting groove 6-1, and the clamping piece 9 is integrally positioned in the limiting groove 6-1, so that in the moving process of the moving part 6, the clamping piece 9 is always kept static to play a role in limiting the moving part 6.

Two ends of the bottom of the cushion 2 are fixedly connected with the base 1 which is arranged oppositely, and two ends of the bottom of the cushion 2 are fixedly connected with the base 1 which is arranged oppositely through bolts.

The two ends of the bottom of the back plate 3 are fixedly connected with the oppositely arranged bases 1, and the two ends of the bottom of the back plate 3 are fixedly connected with the oppositely arranged bases 1 through bolts.

The base 1 is also provided with a handrail 1-1.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: the technical scheme includes that terms such as a base 1, armrests 1-1, a cushion 2, a back plate 3, a backrest component 4, a fitting part 5, a fitting sheet body 5-1, a connecting sheet 5-2, a moving part 6, a limiting groove 6-1, a convex rib 6-2, a long strip groove 6-3, a connecting rod 7, a supporting part 8, a clamping part 9, a positioning rib 9-1 and the like are used, but the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A comfortable office chair with an adjustable waist rest comprises bases (1) which are oppositely arranged, and a cushion (2) and a back plate (3) are arranged between the bases (1) which are oppositely arranged; the backrest assembly is characterized in that a backrest assembly (4) with adjustable height is arranged on the back plate (3), the backrest assembly (4) comprises a fitting part (5) and a moving part (6) which are connected, and the moving part (6) is movably connected to the back plate (3); the backboard (3) is provided with a clamping piece (9), and the moving part (6) is positioned between the clamping piece (9) and the backboard (3); a plurality of convex ribs (6-2) arranged along the length direction are formed on the moving part (6), positioning ribs (9-1) are formed on the clamping piece (9), and the positioning ribs (9-1) are clamped between the adjacent convex ribs (6-2); the top of the moving part (6) is provided with a supporting part (8) connected with the middle part of the attaching part (5).

2. The comfortable office chair with the adjustable waist rest as claimed in claim 1, wherein the attaching part (5) comprises two attaching sheets (5-1) connected with each other, a connecting sheet (5-2) is formed between the two attaching sheets (5-1), and the supporting part (8) is connected to the top of the connecting sheet (5-2).

3. The comfortable office chair with the adjustable waist rest as claimed in claim 2, wherein the attaching sheet body (5-1) is a hollow structure, two sides of the moving part (6) are formed with oppositely arranged connecting rods (7), and the connecting rods (7) are connected to the middle part of the attaching sheet body (5-1).

4. A comfortable office chair with adjustable lumbar support according to claim 3, characterized in that the connecting rod (7) is of a bent structure, and a gap is formed between the attaching part (5) and the moving part (6).

5. The comfortable office chair with the adjustable waist rest as claimed in claim 1, wherein a vertically arranged long groove (6-3) is formed in the middle of the moving part (6), the middle of the clamping member (9) is fixedly connected with the back plate (3), and the joint of the clamping member (9) and the back plate (3) is positioned in the long groove (6-3).

6. A comfortable office chair with adjustable lumbar support according to claim 5, characterized in that the ribs (6-2) are formed on both sides of the elongated slot (6-3), and the ribs (6-2) are arranged along the horizontal direction, and the ribs (6-2) are arranged at equal intervals along the length direction of the elongated slot (6-3).

7. The comfortable office chair with the adjustable waist rest as claimed in claim 5, wherein the moving part (6) is provided with a limiting groove (6-1) on the surface, and the clamping piece (9) is integrally positioned in the limiting groove (6-1).

8. The comfortable office chair with the adjustable waist rest as claimed in claim 1, wherein the two ends of the bottom of the cushion (2) are fixedly connected with the oppositely arranged bases (1).

9. The comfortable office chair with the adjustable lumbar support as claimed in claim 1, wherein the two ends of the bottom of the back plate (3) are fixedly connected with the oppositely arranged bases (1).

10. A comfortable office chair with adjustable lumbar support according to claim 1, characterized in that the base (1) is further provided with armrests (1-1).