CN217447151U

CN217447151U - Three-section type chair back and chair

Info

Publication number: CN217447151U
Application number: CN202121356939.3U
Authority: CN
Inventors: 梁德华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-09-20
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a three-section chair back and chair, comprising a first leaning part, a second leaning part and a third leaning part, wherein the first leaning part and the third leaning part are respectively arranged at the upper side and the lower side of the second leaning part, and the first leaning part and the second leaning part are respectively hinged with the second leaning part; the centers of the first, second and third resting portions are collinear; the utility model discloses divide into the back of the chair in, three-section structure down to interconnect is a whole, gives the support separately to human shoulder, back, waist respectively, and the support angle that the waist leaned on part (lower part) is adjustable, can provide the support of different degrees according to the people of different heights weight and feel, and shoulder (upper portion) can be rotatory backward and have elasticity, can provide forward support to human shoulder during the use and feel, realizes shoulder, back, the lumbar support to human with this three-section structure simultaneously.

Description

Three-section type chair back and chair

Technical Field

The utility model relates to an office equipment technical field, in particular to syllogic back of the chair and seat.

Background

Under the modern office environment, the fatigue or discomfort of the waist, the back and the shoulders of a human body can easily occur when the human body uses a computer for a long time, and the fatigue can be relieved by the reasonable design of the chair back.

Common back of the chair generally divide into single back formula and two back formulas (the waist is leaned on and the back of the chair separation) on the market at present, single back formula back of the chair can provide certain support to the health, but owing to do not have the partition design, can cause the support not enough, can only support the waist during use, the back, one of them position of shoulder, can not realize whole support, the problem that single back formula support is not enough has been solved to two back formulas certain degree, there is the independent support to the waist, but still can't realize independent waist, the back, the shoulder supports, user still appears tired easily.

SUMMERY OF THE UTILITY MODEL

The invention of the utility model aims to: aiming at the existing problems, the three-section type chair back and the three-section type chair seat are provided, and the problem that the supporting force of the chair back on the waist, the back and the shoulders of a human body is insufficient and a user is easy to feel tired in the prior art is solved.

The utility model adopts the technical scheme as follows:

the utility model provides a syllogic back of chair, includes first leaning on portion, second leaning on portion and third leaning on portion, first leaning on portion and third leaning on portion set up respectively in the upper and lower both sides of second leaning on portion, and first leaning on portion, third leaning on portion articulate with second leaning on portion respectively.

Based on the three-section chair back structure, the centers of the first leaning portion, the second leaning portion and the third leaning portion are collinear.

Based on above-mentioned syllogic back of the chair structure, first leaning on portion, second leaning on portion and third leaning on portion be frame construction.

Based on above-mentioned syllogic back of the chair structure, the back of the chair still includes the support column, the second portion of leaning on is connected with the support column.

Based on the three-section chair back structure, the first leaning part is provided with a first hinge seat, a first hinge rod, a first elastic sheet seat and a first elastic sheet strip; the first elastic sheet strip is provided with a connecting hole, and the first elastic sheet strip is connected with the first elastic sheet seat through the connecting hole.

Based on the three-section chair back structure, the second leaning part is close to the first leaning part, the inserting hole matched with the first elastic sheet strip and the fixing groove matched with the first hinge rod are formed in the second leaning part, and the first hinge rod is arranged in the fixing groove; the first hinge rod is symmetrically provided with threaded holes, and the first hinge rod and the fixed groove are fixed through the threaded holes; one end of the first elastic sheet strip is fixedly connected with the first elastic sheet seat, and the other end of the first elastic sheet strip is inserted into the insertion hole of the second leaning part.

Based on the three-section type chair back structure, a second hinge seat, a second hinge rod, a second elastic sheet seat and a second elastic sheet strip are arranged on the third leaning part; the second hinge seat is provided with a hinge hole matched with the second hinge rod in size, the second hinge rod penetrates through the hinge hole, the second elastic sheet strip is provided with a connecting hole, and the second elastic sheet strip is connected with the second elastic sheet seat through the connecting hole;

based on the three-section type chair back structure, the second leaning part is close to the third leaning part, the inserting hole matched with the second elastic sheet strip and the fixing groove matched with the second hinge rod are formed in the second leaning part, and the second hinge rod is arranged in the fixing groove; threaded holes are symmetrically formed in the second hinge rod, and the second hinge rod and the fixing groove are fixed through the threaded holes; one end of the second elastic sheet strip is fixedly connected with the second elastic sheet seat, and the other end of the second elastic sheet strip is inserted into the insertion hole of the second leaning part.

Based on the three-section chair back structure, the third leaning part is provided with an adjusting component, and the support column is provided with a clamping component matched with the adjusting component; when the cooperation through adjusting part and joint subassembly was used, can realize the rigid adjustment to the pitch degree of third portion of leaning on.

The scheme provides a three-section type chair with a backrest, which comprises a three-section type chair back, a chair seat and a base; the three-section chair back is connected with the chair seat, and the chair seat is connected with the base to integrally form the chair.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses divide into the back of the chair in, lower syllogic structure to interconnect becomes a whole, shoulder to the human body respectively, back, waist give the support alone, the support angle that the waist leaned on part (lower part) is adjustable, can provide not support of co-level according to the people of different height weights and feel, shoulder (upper portion) can rotate backward and have elasticity, can provide forward support to human shoulder during the use and feel, realize shoulder, back, lumbar support to the human body with this syllogic structure simultaneously.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a front view of the three-section chair back of the present invention;

FIG. 2 is a schematic side view of the three-section chair back of the present invention;

FIG. 3 is a schematic view of the explosion structure of the three-segment chair back of the present invention;

FIG. 4 is a schematic view of the three-segment chair back in an exploded configuration from another perspective;

FIG. 5 is a schematic structural view of the three-section type back-rest seat of the present invention;

FIG. 6 is a schematic view of the adjusting assembly of the present invention;

the labels in the figure are: 1. a first leaning part; 2. a second rest portion; 3. a third leaning part; 4. an adjustment assembly; 5. a clamping assembly; 6. a chair seat; 7. a base; 8. a support pillar; 101. a first hinge mount; 102. a first hinge lever; 103. a first clip base; 104. a first clip strip; 105. connecting holes; 106. a fixing groove; 107. a threaded hole; 301. a second hinge lever; 302. a second clip seat; 303. a second sliver; 304. a second hinge mount; 401. a third hinge mount; 402. a support shaft; 403. a clamping tongue; 404. connecting the shaft hole; 501. a first clamping hole; 502. a second clamping hole; 503. a third bayonet hole; 504. a clamping seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "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, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

Referring to fig. 1-2, the present invention provides a technical solution.

The utility model provides a syllogic back of chair, includes first leaning on portion 1, second leaning on portion 2 and third leaning on portion 3, first leaning on portion 1 and third leaning on portion 3 set up respectively in the upper and lower both sides of second leaning on portion 2, and first leaning on portion 1, third leaning on portion 3 articulate with second leaning on portion 2 respectively.

The first leaning part 1 can rotate around a hinge point with the second leaning part 2, the first leaning part 1 can be used for supporting the shoulder position of a human body, and the supporting position of the shoulder can be adjusted in a pitching mode according to different heights of the human body;

the third leaning part 3 can rotate around the hinge point of the second leaning part 2, the third leaning part 3 can be used for supporting the waist position of a human body, and the supporting position of the waist can be adjusted in a pitching mode according to different heights of the human body and different using states, so that the best comfort degree is obtained.

The second rest portion 2 is used for supporting the back while providing a connection base for the first rest portion 1 and the third rest portion 3.

The centers of the first leaning part 1, the second leaning part 2 and the third leaning part 3 are collinear, so that the stress of the whole chair back is balanced.

The first leaning part 1, the second leaning part 2 and the third leaning part 3 are all of frame structures, so that materials can be saved on the whole, and manufacturing and transportation costs are reduced.

Based on above-mentioned structure, this scheme pioneering nature provides a syllogic back of leaning on structure to interconnect becomes a whole, shoulder, back, the waist to the human body respectively gives the support alone, the support angle of waist back part (lower part) is adjustable, can provide the support sense of different degrees according to the people of different heights weight, shoulder (upper portion) can rotate backward and have elasticity, can provide forward support sense to human shoulder during the use, realize the shoulder to the human body simultaneously with this syllogic structure, back, lumbar support, human more comfortable when using.

Example 2

Referring to fig. 3 to 4, the present embodiment is similar to embodiment 1, except that the chair back further includes a support pillar 8, the second leaning portion 2 is connected to the support pillar 8, and the second leaning portion 2 is connected to the support pillar 8 by a bolt, a clamping, a welding, a glue, or the like.

The first leaning part 1 is provided with a first hinge seat 101, a first hinge rod 102, a first elastic sheet seat 103 and a first elastic sheet strip 104; the first hinge seat 101 is provided with hinge holes matched with the first hinge rods 102 in size, the first hinge rods 102 penetrate through the hinge holes, the first elastic sheet strip 104 is provided with connecting holes 105, and the first elastic sheet strip 104 is connected with the first elastic sheet seat 103 through the connecting holes 105;

the second leaning part 2 is provided with a plug hole matched with the first elastic sheet strip 104 and a fixing groove 106 matched with the first hinge rod 102 at a position close to the first leaning part 1, and the first hinge rod 102 is arranged in the fixing groove 106;

the first hinge rod 102 is symmetrically provided with threaded holes 107, the first hinge rod 102 is fixed to the fixing groove 106 through the threaded holes 107, the first hinge rod 102 can be quickly positioned by the aid of the fixing groove 106, assembling can be quickly conducted, and assembling difficulty is reduced.

One end of the first spring strip 104 is fixedly connected with the first spring seat 103, and the other end is inserted into the insertion hole of the second leaning part 2;

based on the structure, the first leaning portion 1 and the second leaning portion 2 can be fixedly connected relatively, then the first leaning portion 1 can rotate relatively due to the effect of the first hinge seat 101 and the hinge hole, and the two ends of the first elastic sheet strip 104 are respectively connected with the first leaning portion 1 and the second leaning portion 2, when the first leaning portion 1 is used, the first elastic sheet strip 104 can generate resilience force, so that the head of a human body can be more comfortable when leaning on.

The third resting portion 3 and the second resting portion 2 are connected in a similar manner to the first resting portion 1 and the second resting portion 2;

the third leaning part 3 is provided with a second hinge seat 304, a second hinge rod 301, a second elastic sheet seat 302 and a second elastic sheet strip 303;

the second hinge seat 304 is provided with a hinge hole matched with the second hinge rod 301 in size, the second hinge rod 301 penetrates through the hinge hole, the second elastic sheet strip 303 is provided with a connecting hole 105, and the second elastic sheet strip 303 is connected with the second elastic sheet seat 302 through the connecting hole 105;

the second leaning part 2 is provided with a plug hole matched with the second elastic sheet strip 303 and a fixing groove 106 matched with the second hinge rod 301 at a position close to the third leaning part 3, and the second hinge rod 301 is arranged in the fixing groove 106;

the symmetry is provided with screw hole 107 on the second articulated pole 301, fixes second articulated pole 301 and fixed slot 106 through screw hole 107, and the setting of fixed slot 106 can be quick fix second articulated pole 301 to assembly that can be quick reduces the assembly degree of difficulty.

One end of the second elastic sheet strip 303 is fixedly connected with the second elastic sheet seat 302, and the other end is inserted into the insertion hole of the second leaning part 2.

Based on above-mentioned structure, can make third rest portion 3 and second rest portion 2 relatively fixed connection, then third rest portion 3 can carry out relative rotation owing to the effect of articulated seat 101 of second and hinge hole to because second shell fragment strip 303 both ends are connected with third rest portion 3 and second rest portion 2 respectively, when third rest portion 3 when using, first shell fragment strip 104 can produce the resilience force, makes the human body more comfortable when the head leans on.

Example 3

As shown in fig. 6, this embodiment is similar to embodiment 2, except that an adjusting assembly 4 is disposed on the third leaning portion 3, and a clamping assembly 5 matched with the adjusting assembly 4 is disposed on the supporting column 8; when the adjusting component 4 and the clamping component 5 are matched for use, the rigid adjustment of the pitching degree of the third leaning part 3 can be realized;

the adjusting component 4 comprises a third hinge seat 401, a support shaft 402 and a clamping tongue 403; the third hinge base 401 is arranged at the bottom of the third leaning part 3, the clamping tongue 403 is provided with a connecting shaft hole 404 matched with the supporting shaft 402, and the clamping tongue 403 is rotatably connected with the third hinge base 401 through the supporting shaft 402, so that the clamping tongue 403 can rotate freely around the supporting shaft 402.

The structure of the clamping tongue 403 is an arc-shaped strip structure, and the surface of the clamping tongue 403 is smoothly and transitionally arranged; the human body can manually rotate the clamping tongue 403 quickly.

The clamping component 5 comprises a plurality of clamping holes, and the clamping holes are arranged at different height positions.

The shape of the clamping hole is matched with the end part of the clamping tongue 403, so that the clamping tongue 403 can be stably clamped into the clamping hole.

In this embodiment, the clamping assembly 5 includes a first clamping hole 501, a second clamping hole 502, a third clamping hole 503 and a clamping seat 504, and the first clamping hole 501, the second clamping hole 502 and the third clamping hole 503 are sequentially arranged along the height position of the clamping seat 504;

the first clamping hole 501 is perpendicular to the clamping seat 504, so that the clamping tongue 403 can be perpendicular to the clamping seat 504 in the first clamping hole 501;

the second clamping hole 502 and the clamping seat 504 are arranged at a certain angle, and the angle range is 20-30 degrees;

the third clamping hole 503 and the clamping seat 504 are arranged at a certain angle, and the angle range is 45-60 degrees;

based on above-mentioned structure, can make the human body when adjusting third portion of leaning on 3, can be fast and accurate carry out the regulation of different pitching degrees to this human position of sitting and human height of adaptation difference.

The clamping seat 504 is fixedly connected with the supporting column 8; the clamping seat 504 can provide a supporting force for the third leaning part 3, and the fixed connection mode is bolt connection, clamping, welding, glue and the like.

Example 4

As shown in fig. 5, based on the

above embodiments

2 or 3, this embodiment provides a three-section type chair with a backrest, which includes a three-section chair back, a chair seat 6 and a base 7; the three-section chair back is connected with the chair seat 6, the chair seat 6 is connected with the base 7, and the chair is integrally formed;

the chair can independently support the shoulder, the back and the waist of a human body, the supporting angle of the waist rest part (the lower part) can be adjusted, different degrees of supporting feeling can be provided according to people with different heights and weights, the shoulder (the upper part) can rotate backwards and has elasticity, forward supporting feeling can be provided for the shoulder of the human body during use, and the three-section structure can simultaneously support the shoulder, the back and the waist of the human body.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. A three-section chair back is characterized in that: including first leaning on portion, second leaning on portion and third leaning on portion, first leaning on portion and third leaning on portion set up respectively in the upper and lower both sides of second leaning on portion, first leaning on portion, third leaning on portion articulate with second leaning on portion respectively.

2. The three-piece seatback as claimed in claim 1, wherein: the centers of the first, second and third resting portions are collinear.

3. A three-piece chair back as claimed in claim 2, wherein: the first leaning part, the second leaning part and the third leaning part are all of frame structures.

4. A three-piece chair back as claimed in claim 3, wherein: the chair back further comprises a supporting column, and the second leaning portion is connected with the supporting column.

5. The three-piece chair back of claim 4, wherein: the first leaning part is provided with a first hinge seat, a first hinge rod, a first elastic sheet seat and a first elastic sheet strip; the first elastic sheet strip is provided with a connecting hole, and the first elastic sheet strip is connected with the first elastic sheet seat through the connecting hole.

6. The three-piece seatback as claimed in claim 5, wherein: the second leaning part is close to the first leaning part and is provided with an inserting hole matched with the first elastic strip and a fixing groove matched with the first hinge rod, and the first hinge rod is arranged in the fixing groove; the first hinge rod is symmetrically provided with threaded holes, and the first hinge rod and the fixed groove are fixed through the threaded holes; one end of the first elastic sheet strip is fixedly connected with the first elastic sheet seat, and the other end of the first elastic sheet strip is inserted into the insertion hole of the second leaning part.

7. The three-piece seatback as claimed in claim 6, wherein: the third leaning part is provided with a second hinge seat, a second hinge rod, a second elastic sheet seat and a second elastic sheet strip; the second hinge seat is provided with a hinge hole matched with the second hinge rod in size, the second hinge rod penetrates through the hinge hole, the second elastic sheet strip is provided with a connecting hole, and the second elastic sheet strip is connected with the second elastic sheet seat through the connecting hole.

8. The three-piece seatback as claimed in claim 7, wherein: the second leaning part is close to the third leaning part and is provided with an inserting hole matched with the second elastic sheet strip and a fixing groove matched with the second hinge rod, and the second hinge rod is arranged in the fixing groove; threaded holes are symmetrically formed in the second hinge rod, and the second hinge rod and the fixing groove are fixed through the threaded holes; one end of the second elastic sheet strip is fixedly connected with the second elastic sheet seat, and the other end of the second elastic sheet strip is inserted into the insertion hole of the second leaning part.

9. The three-piece seatback as claimed in claim 8, wherein: the third leaning part is provided with an adjusting component, and the support column is provided with a clamping component matched with the adjusting component; when the cooperation through adjusting part and joint subassembly was used, can realize the rigid adjustment to the pitch degree of third portion of leaning on.

10. A seat of syllogic back of body characterized in that: comprising a three-part chair back, seat and base as claimed in any one of claims 1 to 9; the three-section chair back is connected with the chair seat, and the chair seat is connected with the base to integrally form the chair.