CN215015412U

CN215015412U - Seat with waist rest position adjusting function

Info

Publication number: CN215015412U
Application number: CN202121344811.5U
Authority: CN
Inventors: 李荷方
Original assignee: Taizhou Zimi Furniture Co ltd
Current assignee: Taizhou Zimi Furniture Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-07
Anticipated expiration: 2031-06-17

Abstract

A chair with a waist rest position adjusting function comprises a backrest, a sliding block and a waist rest, wherein a cross beam is arranged in the middle of the backrest, a panel is fixed on the cross beam, the sliding block and the panel are of a sliding structure, a clamping groove is formed in the panel in the vertical direction and comprises a plurality of groups of oblique teeth on one side, a first accommodating cavity is formed in the wall surface, close to the panel, of the sliding block, a compression spring and a clamping block are accommodated in the first accommodating cavity, the clamping block is provided with a clamping part protruding and extending into the clamping groove, a second accommodating cavity is formed in the wall surface, far away from the panel, of the sliding block, a fixed shaft is arranged in the second accommodating cavity, the waist rest is sleeved on the fixed shaft through a sleeving part, a torsion spring is arranged on the fixed shaft, a sealing plate is fixed on the upper portion of the sliding block and used for limiting the upper end of the torsion spring, and the lower end of the torsion spring is abutted against the waist rest; the waist of the seat that this scheme relates to leans on the regulation that can carry out height and angle, and the user is according to actual demand adjustment, and the waist obtains support that can be good, and product experience effect is good, and the seat waist leans on structural design ingenious, convenient assembling.

Description

Seat with waist rest position adjusting function

Technical Field

The utility model relates to a seat with waist leans on position control function.

Background

At present, the daily live time of seat is longer, and ordinary seat is sat the waist and can be tired after a specified time, and along with the user to healthy importance more and more high, current scheme sets up the waist and leans on in the backrest inboard usually, makes the user waist obtain supporting when using the seat, suitably alleviates fatigue. However, the existing waist rest is usually directly fixed on the seat back, the height and the angle of the waist rest can not be adjusted basically, the body types of users are different, the supporting effect on the waist is different from person to person when the waist rest is used, and the comfort of the users can not be ensured.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a seat with position control function is leaned on to the waist.

In order to achieve the above object, the present invention provides a seat with a waist rest position adjusting function, comprising a backrest, a slider sliding up and down relative to the backrest, a waist rest mounted on the slider, a cross beam fixed on the middle part of the backrest, a panel fixed on the cross beam, a sliding structure between the slider and the panel, a slot formed on the panel along a vertical direction, the slot comprising a plurality of sets of skewed teeth on one side, a first accommodating cavity formed on a wall surface of the slider near the panel, a compression spring and a clamping block accommodated in the first accommodating cavity, the clamping block having a protrusion and a clamping portion extending into the slot, a second accommodating cavity formed on a wall surface of the slider far away from the panel, a fixed shaft disposed in the second accommodating cavity, and a rotatable sleeve of the waist rest on the fixed shaft through a sleeve portion, a torsional spring is arranged on the fixed shaft, a sealing plate is fixed at the upper part of the sliding block and used for limiting the upper end of the torsional spring, and the lower end of the torsional spring is abutted against the waist rest;

the waist of this seat leans on can carry out the regulation of height and angle simultaneously for the user is when using, does suitable adjustment according to oneself's body shape, and user's waist can obtain good support, and is very comfortable.

Preferably, the backrest is integrated, and the upper part of the backrest is provided with a height-adjustable headrest;

in above-mentioned technical scheme, the structural strength of the back of integral type is big, and adjustable headrest is used for further supporting user's neck, and the travelling comfort is good.

Preferably, the side of the sliding block far away from the backrest is provided with a cover plate;

in the technical scheme, the cover plate can limit the amplitude of the waist rest swinging towards the direction of a human body and limit the moving range of the waist rest, so that the torsion spring is always in a certain pressed state, and the stable structure of the waist rest part of the seat is ensured.

Preferably, the backrest comprises a removably attached front cover, the front cover completely concealing the panel;

in the technical scheme, the detachable front cover is convenient for installing the sliding block, and the panel is completely hidden, so that the whole seat is attractive and elegant.

The utility model discloses beneficial effect for prior art does: the waist of current seat is by being basically fixed, and the waist of the seat that this scheme relates to is by the regulation that can carry out height and angle, and the user of being convenient for adjusts according to actual demand for the user is when using, and the waist obtains good support, and user's product experience effect is good, and the waist of seat is by structural design ingenious, convenient assembling.

Drawings

Fig. 1 is a perspective view of a chair with a lumbar support position adjustment function according to the present invention;

FIG. 2 is a schematic view of the seat of FIG. 1 at the back;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is an enlarged view of position A of FIG. 3;

FIG. 5 is a schematic view of FIG. 3 in another orientation;

fig. 6 is an enlarged view of the position B in fig. 5.

In the figure: 1. a headrest; 2. a backrest; 21. a cross beam; 22. a front cover; 3. a panel; 31. a card slot; 311. oblique teeth; 4. a slider; 41. a first receiving cavity; 42. a second receiving cavity; 5. a clamping block; 51. a clamping part; 6. pressing a spring; 7. closing the plate; 8. a torsion spring; 9. a cover plate; 10. a fixed shaft; 11. a waist support; 111. a socket joint part.

Detailed Description

As shown in fig. 1 to 6, a chair with a lumbar support position adjusting function according to an embodiment of the present invention includes a backrest 2, a slider 4 sliding up and down relative to the backrest 2, and a lumbar support 11 mounted on the slider 4, wherein the middle portion of the backrest 2 has a cross beam 21, a panel 3 is fixed on the cross beam 21, the slider 4 and the panel 3 are in a sliding structure, a slot 31 is formed in the panel 3 along a vertical direction, the slot 31 includes a plurality of sets of oblique teeth 311 on one side, a first accommodating cavity 41 is formed on a wall surface of the slider 4 close to the panel 3, a compression spring 6 and a fixture block 5 are accommodated in the first accommodating cavity 41, the fixture block 5 has a fastening portion 51 protruding and extending into the slot 31, a second accommodating cavity 42 is formed on a wall surface of the slider 4 away from the panel 3, a fixing shaft 10 is disposed in the second accommodating cavity 42, the lumbar support 11 is rotatably sleeved on the fixing shaft 10 by a sleeve portion 111, and a torsion spring 8 is disposed on the fixing shaft 10, a sealing plate 7 is fixed on the upper part of the sliding block 4 and used for limiting the upper end of a torsion spring 8, and the lower end of the torsion spring 8 is abutted against a waist rest 11; the backrest 2 is integrated, the height-adjustable headrest 1 is arranged at the upper part of the backrest 2, the integrated backrest is high in structural strength, and the adjustable headrest is used for further supporting the neck of a user, so that the comfort is good; the side surface of the sliding block 4 far away from the backrest 2 is provided with a cover plate 9, the cover plate can limit the swing amplitude of the waist rest towards the direction of a human body and limit the moving range of the waist rest, so that the torsion spring is always in a certain pressed state, and the stable structure of the waist rest part of the seat is ensured; the backrest 2 comprises a detachably connected front cover 22, the front cover 22 enables the panel 3 to be completely hidden, the detachable front cover is convenient for installation of a sliding block, and the panel is completely hidden to enable the whole seat to be attractive and elegant.

The waist of current seat is by being basically fixed, and the waist of the seat that this scheme relates to is by the regulation that can carry out height and angle, and the user of being convenient for adjusts according to actual demand for the user is when using, and the waist obtains good support, and user's product experience effect is good, and the waist of seat is by structural design ingenious, convenient assembling.

When in specific use, the utility model is described with the attached drawings for the convenience of understanding;

angle adjustment of the waist support: the waist rest is connected with the sliding block through the torsion spring, and the waist rest can swing backwards around the fixed shaft according to actual stress, so that a good supporting effect is realized, namely, when users with different weights use the chair, the waist rest can be supported at the waist position of the user, and the user experience effect is good;

height adjustment of the waist support: referring to fig. 4 and 6, the clamping portion 51 of the clamping block is embedded in the oblique teeth 311 of the clamping groove 31, when the waist is leaned on the lower side, the sliding block is leaned on the lower side along with the waist, the clamping block overcomes the elastic force of the compression spring in the downward process, so that the clamping portion 51 reaches the position of the next oblique teeth through the previous oblique teeth, the height is adjusted, when the waist is leaned on the lowest position, the position of the clamping block is righted, the waist is leaned on the higher position, the clamping portion of the clamping block is enabled to act on the oblique teeth again, and the positioning is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat with a lumbar support position adjusting function is characterized in that: comprises a backrest (2), a sliding block (4) which vertically slides relative to the backrest (2), and a waist rest (11) arranged on the sliding block (4), wherein a beam (21) is arranged in the middle of the backrest (2), a panel (3) is fixed on the beam (21), the sliding block (4) and the panel (3) are of a sliding structure, a clamping groove (31) is formed in the panel (3) along the vertical direction, the clamping groove (31) comprises a plurality of groups of inclined teeth (311) on one side, a first accommodating cavity (41) is formed in the wall surface, close to the panel (3), of the sliding block (4), a compression spring (6) and a clamping block (5) are accommodated in the first accommodating cavity (41), the clamping block (5) is provided with a bulge and extends into a clamping part (51) in the clamping groove (31), and a second accommodating cavity (42) is formed in the wall surface, far away from the panel (3), of the sliding block (4), be equipped with a fixed axle (10) in chamber (42) is accomodate to the second, the waist is leaned on (11) and rotationally overlaps through cup joint portion (111) and is in on fixed axle (10), just be equipped with torsional spring (8) on fixed axle (10), slider (4) upper portion is fixed with shrouding (7) and is used for the restriction the upper end of torsional spring (8), the lower extreme of torsional spring (8) supports and leans on (11) the waist.

2. A seat having a lumbar support position adjustment function according to claim 1, wherein: the backrest (2) is integrated, and the upper part of the backrest (2) is provided with a headrest (1) with adjustable height.

3. A seat having a lumbar support position adjustment function according to claim 1, wherein: and a cover plate (9) is arranged on the side surface of the sliding block (4) far away from the backrest (2).

4. A seat having a lumbar support position adjustment function according to claim 3, wherein: the backrest (2) comprises a detachably connected front cover (22), the front cover (22) completely concealing the panel (3).