CN214760161U

CN214760161U - Chair with liftable waist rest adjusting mechanism

Info

Publication number: CN214760161U
Application number: CN202023337053.2U
Authority: CN
Inventors: 王江林; 刘冠华; 夏中方
Original assignee: Henglin Home Furnishings Co Ltd
Current assignee: Henglin Home Furnishings Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-19
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a chair with adjustable waist leans on adjustment mechanism includes that back of the chair subassembly, waist lean on adjustment mechanism, seat support and base, the waist is leaned on through waist and is leaned on adjustment mechanism and set up on back of the chair subassembly, the waist leans on adjustment mechanism to include fixing base, sliding seat and digging arm, fixing base and back of the chair subassembly fixed connection, the sliding seat slides and sets up on the fixing base, is equipped with the fixed arm on the sliding seat, and the fixed arm is articulated with the digging arm, and the digging arm leans on fixed connection with the waist. This technical scheme slides the setting of sliding seat through the fixing base on the back of the chair subassembly of chair and locks on the back of the chair subassembly, and the user leans on height and angle according to the demand adjustment waist of self to find the most comfortable waist and lean on the position, more effectual support user's vertebra has satisfied the individuation difference of the crowd of different figures, simple structure moreover can directly install additional on the back of the chair subassembly of chair.

Description

Chair with liftable waist rest adjusting mechanism

Technical Field

The utility model relates to the field of furniture, especially, relate to a chair with adjustable mechanism is leaned on to liftable waist.

Background

Sub-health is always a hot topic of concern in people's life, wherein lumbar problems caused by sedentary people are particularly prominent. As is known, the spine of a human being is S-shaped, the general chair backs are straight up and down, or the middle lower parts of the chair backs are slightly arched to improve the comfort of the back support of the chair, but the chairs with the structures can not well support the S-shaped spine of the human body, and the general back support angles of the chairs with the structures can not be adjusted, so that the individual difference can not be met, and the spine problem brought to a user by long-time sitting can not be solved.

At present, chairs with lumbar supports exist in the prior art, but the adjustment angle of the position of the lumbar support is limited, people with different body shapes and sizes cannot be adjusted in a differentiated mode, the spine of any user cannot be well supported, and the supporting effect is affected.

Disclosure of Invention

In order to solve the technical problem, the utility model aims at providing a chair with adjustable waist leans on adjustment mechanism, the waist of this chair leans on adjustment mechanism can reciprocate at the back of the chair subassembly of chair, and the user can lean on the angle at the not co-altitude adjustment waist of chair according to the demand of self to find the most comfortable waist and lean on the position, more effective support user's vertebra.

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

the utility model provides a chair with adjustable mechanism is leaned on to liftable waist, leans on, the waist leans on adjustment mechanism, seat support and base including back of the chair subassembly, waist, the waist is leaned on through the waist and is leaned on adjustment mechanism and set up on the back of the chair subassembly, the waist leans on adjustment mechanism to include fixing base, sliding seat and digging arm, fixing base and back of the chair subassembly fixed connection, the sliding seat slides and sets up on the fixing base, is equipped with the fixed arm on the sliding seat, and the fixed arm is articulated with the digging arm, and the digging arm leans on fixed connection with the waist.

Preferably, the plurality of movable arms are fixedly connected and move synchronously through a rigid connecting piece, and the rigid connecting piece is fixedly connected with the waist rest.

Preferably, the sliding seat is provided with a limiting sliding groove, the fixed seat is provided with a limiting part, and the limiting part and the limiting sliding groove are matched and positioned, so that the sliding seat can move up and down relative to the fixed seat to be locked in place.

Preferably, the left side and the right side of the limiting sliding chute are symmetrically provided with a plurality of gear grooves, and the limiting part is matched with the gear grooves so as to lock the position of the sliding seat on the fixed seat. The notch in gear groove is downward, and the locating part upwards inserts the gear inslot, and the sliding seat makes locating part and gear groove cooperation inseparabler because gravity has ordering about of downstream.

Preferably, the stopper is a one-way pawl having elasticity.

Preferably, the fixed seat is further provided with an accommodating cavity capable of accommodating the limiting part and the sliding seat, and the sliding seat moves up and down in the accommodating cavity. Height adjustment, locking process between the spacing spout of locating part and sliding seat in the fixing base all go on in the intracavity that holds of connecting seat like this, do not expose in the product outside, see the product appearance pleasing to the eye like this from the outside, slide moreover more reliably.

Preferably, the movable arm is rotated upward by 0-90 ° relative to the stationary arm and can be locked.

Preferably, the chair back assembly comprises a chair back and a first connecting piece used for connecting the chair back and the chair seat, and the fixing seat is fixedly arranged on the chair back or the first connecting piece.

The utility model discloses owing to adopted above technical scheme, slide the setting through the fixing base with the sliding seat on the back of the chair subassembly of chair and lock on the back of the chair subassembly, the user leans on height and angle according to the demand adjustment waist of self to find the most comfortable waist and lean on the position, more effectual support user's vertebra has satisfied the individuation difference of the crowd of different figures, simple structure moreover can directly install additional on the back of the chair subassembly of chair.

Drawings

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

FIG. 2 is a schematic view of a connection structure of the fixing seat, the lumbar support adjusting mechanism and the lumbar support in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the fixing seat and the lumbar support adjusting mechanism in FIG. 1;

FIG. 4 is a schematic structural view of FIG. 3 with the anchor block and rigid link removed;

description of reference numerals:

1. a chair back; 11. a first connecting member; 2. a waist support; 3. a lumbar support adjustment mechanism; 31. a sliding seat; 311. a gear groove; 32. A fixed arm; 33. a movable arm; 34. a rigid connection; 4. a chair seat; 5. a base; 6. a fixed seat.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but 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 therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, the chair with the liftable lumbar support adjusting mechanism comprises a chair back component, a lumbar support 2, a lumbar support adjusting mechanism 3, a chair seat 4 and a base 5, wherein the lumbar support 2 is arranged on the chair back component through the lumbar support adjusting mechanism 3. The back of the chair subassembly includes back of the chair 1 and is used for connecting the first connecting piece 11 of back of the chair 1 and seat support 4, and back of the chair 1 can fix and set up on first connecting piece 1, also can rotationally set up on first connecting piece 1, and the upper portion of back of the chair 1 can set up the headrest, also can not set up the headrest.

Adjusting mechanism 3 is leaned on to waist includes fixing base 6, sliding seat 31 and digging arm 33, fixing base 6 and back of the chair subassembly fixed connection, fixing base 6 can be through the fixed setting of fastener on the back of the chair, also can be through the fixed setting of fastener on first connecting piece 11, sliding seat 31 slides and sets up on fixing base 6, is equipped with fixed arm 32 on the sliding seat 31, and fixed arm 32 is articulated with digging arm 33, through the fixed simultaneous movement of rigid connection piece 34 with at least two digging arms 33, rigid connection piece 34 and digging arm 33 fixed connection or integrated into one piece, rigid connection piece 34 leans on 2 fixed connection with the waist. The movable arm 33 is rotated upward 0-90 degrees relative to the fixed arm 32 and can be locked, and in one embodiment, the movable arm 33 is rotated upward 0-90 degrees relative to the fixed arm 32 and can be locked through an air rod or an air bag; in another embodiment, the moveable arm 33 may be capable of being locked by rotating it upward 0-90 relative to the stationary arm 32 by a ratchet and pawl arrangement as disclosed in CN 108420214A.

The sliding seat 31 is provided with a limiting sliding groove, the fixed seat 6 is fixedly provided with a limiting part, and the limiting part and the sliding groove are matched for positioning, so that the sliding seat 31 can move up and down relative to the fixed seat 6 to be locked in place.

In this embodiment, a plurality of gear slots 311 are symmetrically disposed on the left and right sides of the sliding slot, the limiting members are engaged with the gear slots 311 to lock the position of the sliding seat 31 on the fixing seat 6, and the limiting members are elastic unidirectional pawls. Because the sliding seat 31 receives gravity and can have a downward movement trend, as preferred, the gear slot 311 is the cockscomb structure groove that opens downwards, the one-way pawl on the locating part is that "eight" word upwards inserts the gear slot 311 and locks, and locking that the locating part was like this on the sliding seat 31 is more firm, and the one-way pawl that has elasticity can make the locating part can insert in the gear slot 311 automatically moreover, and every time the sliding seat 31 moves a distance downwards, the waist leans on 2 then a gear of walking downwards.

In order to prevent the limiting part from being exposed outside in the moving process of the limiting sliding groove and ensure that the sliding seat can move more reliably, the fixed seat 6 is further provided with an accommodating cavity capable of accommodating the limiting part and the sliding seat 31, and the sliding seat 31 moves up and down in the accommodating cavity, so that the appearance is uniform and attractive in appearance when viewed from the outside.

All features described in the description, the appended claims and the drawings, either individually or in any combination thereof, are essential features of the invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "one implementation," "a specific implementation," "other implementations," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment, implementation, or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described above may also be combined in any suitable manner in any one or more of the embodiments, examples, or examples. The present disclosure also includes any one or more of the specific features, structures, materials, or characteristics described above, either individually or in any combination.

Although the embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions, variations, deletion of partial features, addition of features or re-combination of features without departing from the spirit and scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the innovative principles of the present invention are all within the scope of the present invention.

Claims

1. The utility model provides a chair with adjustable mechanism is leaned on to liftable waist, leans on (2), waist to lean on adjustment mechanism (3), seat support (4) and base (5) including back of the chair subassembly, waist, the waist leans on (2) to lean on adjustment mechanism (3) to set up on the back of the chair subassembly through the waist, a serial communication port, the waist leans on adjustment mechanism (3) to include fixing base (6), sliding seat (31) and digging arm (33), fixing base (6) and back of the chair subassembly fixed connection, sliding seat (31) slide to set up on fixing base (6), are equipped with fixed arm (32) on sliding seat (31), and fixed arm (32) are articulated with digging arm (33), and digging arm (33) lean on (2) fixed connection with the waist.

2. The chair with the liftable lumbar support adjusting mechanism according to claim 1, wherein the plurality of movable arms (33) are fixedly connected and move synchronously through a rigid connecting member (34), and the rigid connecting member (34) is fixedly connected with the lumbar support (2).

3. The chair with the liftable lumbar support adjusting mechanism according to claim 1, wherein the sliding seat (31) is provided with a limiting sliding groove, the fixed seat (6) is provided with a limiting member, and the limiting member is matched and positioned with the limiting sliding groove, so that the sliding seat (31) can move up and down relative to the fixed seat (6) to be locked.

4. The chair with the liftable lumbar support adjusting mechanism according to claim 3, wherein a plurality of gear slots (311) are symmetrically arranged on the left side and the right side of the limiting sliding slot, and the limiting member is matched with the gear slots (311) to lock the position of the sliding seat (31) on the fixed seat (6).

5. The chair with the liftable lumbar support adjusting mechanism according to claim 3, wherein the limiting member is a one-way pawl having elasticity.

6. The chair with the liftable lumbar support adjusting mechanism according to claim 3, wherein the fixing seat (6) is further provided with an accommodating cavity capable of accommodating the limiting member and the sliding seat (31), and the sliding seat (31) moves up and down in the accommodating cavity.

7. A chair with liftable lumbar support adjustment mechanism according to claim 1, characterized in that the movable arm (33) is rotatable 0-90 ° upwards relative to the fixed arm (32) and can be locked.

8. A chair with liftable lumbar support adjusting mechanism according to claim 1, wherein the chair back assembly comprises a chair back (1) and a first connecting member (11) for connecting the chair back (1) and the chair seat (4), and the fixing seat (6) is fixedly installed on the chair back (1) or the first connecting member (11).