CN117426636A

CN117426636A - Adjustable chair of waist pillow

Info

Publication number: CN117426636A
Application number: CN202311324294.9A
Authority: CN
Inventors: 姬兴阳; 刘秋生; 伍小君; 丁晖
Original assignee: Anji Sanjiu Smart Home Technology Co ltd
Current assignee: Anji Sanjiu Smart Home Technology Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-01-23

Abstract

The invention relates to the technical field of furniture and discloses a chair with an adjustable waist pillow, which comprises a chair main body, the waist pillow and armrests; the chair main body comprises a chair seat and a chair back, the waist pillow is detachably arranged on the vertical central axis of the chair back, and the armrests are arranged on two sides of the chair back; the waist pillow comprises a waist pillow bottom cover and at least one waist pillow unit, wherein inner sliding rails are arranged on two sides of the waist pillow bottom cover, and the waist pillow unit is fixed on the waist pillow bottom cover through the inner sliding rails; the lumbar pillow unit comprises an elevation angle adjusting mechanism, a lumbar pillow base and a lumbar pillow front cover. The invention provides an adjustable chair with a waist pillow, which can adjust the angle of elevation and the height, is simple to operate, and can relieve the pain of the waist and prevent and treat the lumbar lesions; the armrests can rotate left and right and the angle of elevation can be adjusted, so that reliable and comfortable support is provided for the arms of the users; the bottom of the chair is provided with a lifting device and universal wheels, so that the height of the chair can be conveniently adjusted and the chair can be conveniently moved on the ground.

Description

Adjustable chair of waist pillow

Technical Field

The invention relates to the technical field of furniture, in particular to a chair with an adjustable waist pillow.

Background

The chair is a seat with a backrest and armrests. Chairs are classified according to the use, and they can be classified into: child safety chairs, airport chairs, car chairs, bus chairs, home chairs, restaurant chairs, child safety chairs, leisure chairs, and the like; according to the material classification, chairs may be classified into: aluminum alloy chairs, stainless steel chairs, iron chairs, wooden chairs, and other material chairs.

Various chairs such as sofas, stools, chairs and the like are generally identical in structure, but when people use the chairs such as the stools and the like without backrests and armrests, the chairs bring a lot of inconveniences to people, and when people want to lie backwards, the requirements of people cannot be met, so that people who use the chairs are less and less, most of the existing people use chairs with backrests or with armrests, and the chairs can rest by lying down by the backrests when people work is tired. However, the existing back rest or waist pillow is mostly fixed and unadjustable or has only a single adjusting function, and the armrests are mostly unadjustable or are not automatically lockable after adjustment.

With the rapid development of society, more and more people often sit in front of a computer for office work, but the people sit for a long time, various lumbar vertebra diseases are easily caused, and the lumbar pillow is an article for supporting the waist. The waist pillow provides comfort when sitting or lying, and achieves the purposes of relieving waist pain and preventing and treating lumbar lesions. The human vertebra consists of 7 cervical vertebrae, 12 thoracic vertebrae and 5 lumbar vertebrae, and is shaped like an upright S from the side, and has the elastic function of supporting the head, neck and back. Different degrees of curvature of the spine of different persons may also cause abnormal curvature of the spine due to changes in the spine-to-spine gap caused by individual sleeping, sitting or other bad postures. Accordingly, chairs equipped with lumbar pillows are increasingly being developed and popular.

Disclosure of Invention

The invention provides an adjustable chair with a waist pillow, aiming at the defects of the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

an adjustable lumbar pillow chair, the chair comprising a chair body, lumbar pillows and armrests; the chair main body comprises a chair seat and a chair back, the waist pillow is detachably arranged on the vertical central axis of the chair back, and the armrests are arranged on two sides of the chair back;

the waist pillow comprises a waist pillow bottom cover and at least one waist pillow unit, wherein inner sliding rails are arranged on two sides of the waist pillow bottom cover, and the waist pillow unit is fixed on the waist pillow bottom cover through the inner sliding rails;

the lumbar pillow unit comprises an elevation angle adjusting mechanism, a lumbar pillow base and a lumbar pillow front cover.

Preferably, the elevation angle adjusting mechanism comprises a rear cover, a gear shifting bearing, a polish rod, a handle and a fastener;

the gear shifting bearing, the waist pillow base and the rear cover are sequentially sleeved on the polish rod from the middle to the outside, and the handle is detachably fixed on two sides of the polish rod;

the gear shifting bearing is fixed in the middle of the polish rod through a fastener; the gear shifting bearing is fixed, one side close to the rear cover is provided with a first stop block, the lower part of the rear side inside the rear cover is provided with at least two gear shifting grooves, the first stop block is matched with the gear shifting grooves, and when the handle is rotated, the first stop block can be placed in different gear shifting grooves.

Preferably, the gear shifting bearing is provided with a second stop block at the corresponding end of the first stop block, a section of groove is formed in the position, corresponding to the second stop block, of the lumbar pillow base, the maximum rotatable angle of the second stop block in the groove is alpha, the maximum rotatable angle of the first stop block in the gear shifting groove is beta, and alpha=beta.

Preferably, the lumbar pillow unit further comprises a spring, wherein the spring elastic force acts on the lumbar pillow base, is arranged between the rear cover and the lumbar pillow base and is positioned above the gear shifting bearing.

Preferably, the armrest comprises an armrest supporting surface, an armrest supporting arm and an electrodeless locking device, wherein the electrodeless locking device is used for connecting the armrest supporting arm with the chair back, and the armrest supporting arm is connected with the armrest supporting surface.

Preferably, the electrodeless locking device comprises a locking mechanism, a locking plate connecting block and a locking device shaft; the locking plate connecting block is connected with the locking mechanism and the armrest supporting arm, and the locking device is connected with the chair back and the armrest supporting arm through shafts.

Preferably, the electrodeless locking apparatus is rotatable by a maximum angle of 55 °.

Preferably, an inner and outer rotating device is arranged between the armrest supporting surface and the armrest supporting arm.

Preferably, the bottom of the chair seat is provided with a lifting device.

Preferably, the chair main body further comprises a support frame, the support frame is arranged below the chair seat, and universal wheels are arranged at the bottom of the support frame.

The beneficial effects of the invention are as follows: the invention provides a chair with an adjustable waist pillow, which can adjust the angle of the waist pillow through an elevation angle adjusting mechanism or adjust the height of the waist pillow through an inner sliding rail of a bottom cover of the waist pillow, has simple operation, can provide effective support for the waist and even the back of a human body, and can relieve the pain of the waist and prevent and treat lumbar lesions; the armrests can rotate left and right and the angle of elevation can be adjusted, so that reliable and comfortable support is provided for the arms of the users; the bottom of the chair is provided with a lifting device and universal wheels, so that the height of the chair can be conveniently adjusted and the chair can be conveniently moved on the ground.

Drawings

Fig. 1 is a schematic view of the overall structure of a chair according to an embodiment of the present invention.

Fig. 2 is a schematic view of the overall structure of a lumbar pillow according to an embodiment of the present invention.

Fig. 3 is an assembled view of the lumbar pillow unit and the lumbar pillow bottom cover according to an embodiment of the present invention.

Fig. 4 is a schematic view of a bottom cover structure of a lumbar pillow according to an embodiment of the present invention.

Fig. 5 is a schematic view of the overall structure of a lumbar pillow unit according to an embodiment of the present invention.

Fig. 6 is an exploded view of the overall structure of the lumbar pillow unit according to an embodiment of the present invention.

Fig. 7 is a front view (a) and a schematic view of a cross-section A-A of a lumbar pillow unit (B) according to an embodiment of the present invention.

Fig. 8 is a schematic view of a groove structure of a lumbar pillow base according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of a shift bearing structure according to an embodiment of the present invention.

FIG. 10 is a schematic view of a position of an electrodeless locking apparatus in accordance with an embodiment of the present invention.

Fig. 11 is a schematic structural view of an electrodeless locking device in accordance with an embodiment of the present invention.

Fig. 12 is a schematic view of the bottom structure of a chair according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments are clearly and completely described below in connection with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.

The invention provides a chair with an adjustable waist pillow, which is shown in figures 1-12, and comprises a chair main body 1, a waist pillow 2 and armrests 3; the main body of the chair comprises a seat 11 and a chair back 12, the lumbar pillow 2 is detachably arranged on the vertical central axis of the chair back 12, and the armrests 3 are arranged on two sides of the chair back 12;

the waist pillow 2 comprises a waist pillow bottom cover 21 and at least one waist pillow unit 22, wherein inner sliding rails 211 are arranged on two sides of the waist pillow bottom cover 21, the waist pillow unit 22 is fixed on the waist pillow bottom cover 21 through the inner sliding rails 211, different users have different requirements on the height of the waist pillow, and the arrangement can facilitate the adjustment of the waist pillow unit 22 in the upper and lower heights;

as shown in fig. 5, the lumbar pillow unit 22 includes an elevation angle adjusting mechanism 221, a lumbar pillow base 222, and a lumbar pillow front cover 223. The elevation angle adjustment mechanism 221 can adjust the elevation angle of the lumbar pillow, helping to better conform to the user's waist or curve of the waist and back, providing support thereto.

In an embodiment of the present invention, as shown in fig. 5-9, the elevation adjustment mechanism 221 includes a rear cover 2211, a gear shifting bearing 2212, a polish rod 2213, a handle 2214, and a fastener 2215;

the gear shifting bearing 2212, the waist pillow base 222 and the back cover 2211 are sequentially sleeved on the polish rod 2213 from the middle to the outside, and the handle 2214 is detachably fixed on two sides of the polish rod 2213;

the gear shifting bearing 2212 is fixed in the middle of the polish rod 2213 through a fastener 2215; the gear shifting bearing 2212 is fixed, a first stop block 22121 is arranged on one side, close to the rear cover 2211, of the rear cover 2211, at least two gear shifting grooves 22111 are arranged on the lower portion of the rear side of the rear cover 2211, the first stop block 22121 is matched with the gear shifting grooves 22111, and when the handle 2214 is rotated, the first stop block 22121 can be placed in different gear shifting grooves 1011.

In this embodiment, the lumbar pillow unit 22 has 3-stage adjustment angle, and the handle 2214 can be rotated to achieve angle adjustment, so the handle 2214 is preferably fixed on two sides of the polish rod 2213 by mortise and tenon structure, and no relative displacement is generated to the polish rod 2213 during rotation.

In some embodiments of the present invention, as shown in fig. 8-9, the gear shift bearing 2212 is provided with a second stop 22122 at a corresponding end of the first stop 22121, a groove 2221 is provided at a position of the lumbar support base 222 corresponding to the second stop 22122, the second stop 1022 is rotatable within the groove 201 by a maximum angle α, and the first stop 22121 is rotatable within the gear shift groove 22111 by a maximum angle β, α=β. This arrangement ensures that the first stop 22121 rotates only in the shift recess 1011, and when the first stop 22121 is in the first or last gear, the second stop 1022 is also at the edge of the recess 201 and cannot pass beyond the recess 201, so that the first stop 22121 cannot pass beyond the shift recess 1011.

In some embodiments of the present invention, as shown in fig. 6, the lumbar support unit 22 further includes a spring 224, where the spring 224 acts on the lumbar support base 222, and is disposed between the rear cover 2211 and the lumbar support base 222 above the gear shift bearing 2212. This arrangement can provide elastic support for the lumbar pillow.

In some embodiments of the present invention, as shown in fig. 10-11, the armrest 3 includes an armrest support surface 33, an armrest support arm 32, and an electrodeless locking device 31, wherein the electrodeless locking device 31 connects the armrest support arm 32 to the seatback 12, and the armrest support arm 32 is connected to the armrest support surface 33. The stepless locking device 31 can realize the adjustment of the elevation angle of the handrail 3.

In this embodiment, the electrodeless locking device 31 comprises a locking mechanism 311, a locking tab connection block 312, and a locking device shaft 313;

the lock piece connection block 312 connects the lock mechanism 311 and the armrest support arm 32, and the lock device shaft 313 connects the seatback 12 and the armrest support arm 32. When the armrest 3 is rotated upwards, the locking piece connecting block 312 also rotates and drives the locking mechanism 311 to operate. The handrail 3 is rotated upwards to the bottom, namely the unlocking state, and then the selected gear is rotated downwards, and the stepless locking device 31 automatically locks the gear.

In this embodiment, the maximum rotatable angle of the electrodeless locking apparatus 31 is 55 °, and there are 5 elevation angle gears. I.e. 55 ° upwards of the armrest 3 is in the unlocked state.

In some embodiments of the present invention, the armrest supporting surface 33 and the armrest supporting arm 32 are provided with an inner and outer rotating device 331, and the armrest supporting surface 33 can rotate left and right relative to the armrest supporting arm 32, i.e., rotate inside and outside relative to the chair.

In this embodiment, the armrest support surface 33 may be rotated 50 ° inward of the chair and 12 ° outward of the chair.

In some embodiments of the present invention, as shown in fig. 12, the bottom of the seat 11 is provided with a lifting device 111, so that the seat height of the chair can be adjusted to make the user feel more comfortable.

In some embodiments of the present invention, the chair body 1 further includes a support frame 13, the support frame 13 is disposed below the seat 11, and universal wheels are disposed at the bottom of the support frame 13, so that a user can move without going down the ground.

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. 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.

Claims

1. The chair with the adjustable waist pillow is characterized by comprising a chair main body (1), the waist pillow (2) and armrests (3); the main body of the chair comprises a seat (11) and a chair back (12), the waist pillow (2) is detachably arranged on the vertical central axis of the chair back (12), and the armrests (3) are arranged on two sides of the chair back (12);

the waist pillow (2) comprises a waist pillow bottom cover (21) and at least one waist pillow unit (22), wherein inner sliding rails (211) are arranged on two sides of the waist pillow bottom cover (21), and the waist pillow unit (22) is fixed on the waist pillow bottom cover (21) through the inner sliding rails (211);

the lumbar pillow unit (22) comprises an elevation angle adjusting mechanism (221), a lumbar pillow base (222) and a lumbar pillow front cover (223); the elevation angle adjusting mechanism (221) comprises a rear cover (2211), a gear shifting bearing (2212), a polished rod (2213), a handle (2214) and a fastener (2215);

the gear shifting bearing (2212), the waist pillow base (222) and the rear cover (2211) are sequentially sleeved on the polish rod (2213) from the middle to the outside, and the handle (2214) is detachably fixed on two sides of the polish rod (2213);

the gear shifting bearing (2212) is fixed in the middle of the polish rod (2213) through a fastener (2215); one side that is close to back lid (2211) behind gear shifting bearing (2212) is provided with first dog (22121), the inside rear side lower part of back lid (2211) is provided with two at least gear shifting recess (22111), and first dog (22121) cooperatees with gear shifting recess (22111), and when twist grip (2214), first dog (22121) can be placed in different gear shifting recesses (1011).

2. The adjustable lumbar support chair according to claim 1, wherein the gear shifting bearing (2212) is provided with a second stop block (22122) at a corresponding end of the first stop block (22121), a section of groove (2221) is arranged at a position corresponding to the second stop block (22122) on the lumbar support base (222), the maximum rotatable angle of the second stop block (1022) in the groove (201) is alpha, the maximum rotatable angle of the first stop block (22121) in the gear shifting groove (22111) is beta, and alpha=beta.

3. The adjustable lumbar support chair according to claim 1, wherein the lumbar support unit (22) further comprises a spring (224), the spring (224) acting on the lumbar support base (222) and being arranged between the rear cover (2211) and the lumbar support base (222) above the gear shifting bearing (2212).

4. A lumbar support adjustable chair according to any one of claims 1-3, wherein the armrest (3) comprises an armrest support surface (33), an armrest support arm (32) and an electrodeless locking device (31), the electrodeless locking device (31) connecting the armrest support arm (32) to the seatback (12), the armrest support arm (32) being connected to the armrest support surface (33).

5. The lumbar support adjustable chair according to claim 4, wherein the electrodeless locking device (31) comprises a locking mechanism (311), a locking plate connecting block (312) and a locking device shaft (313);

the locking plate connecting block (312) is connected with the locking mechanism (311) and the armrest supporting arm (32), and the locking device shaft (313) is connected with the chair back (12) and the armrest supporting arm (32).

6. A lumbar support adjustable chair according to claim 4, characterized in that said endless locking means (31) are rotatable through a maximum angle of 55 °.

7. An adjustable lumbar support chair according to claim 4, characterized in that an inner and outer swivel means (331) is provided between the armrest support surface (33) and the armrest support arm (32).

8. A lumbar support adjustable chair according to any of claims 1-7, wherein the bottom of the seat (11) is provided with lifting means (111).

9. An adjustable lumbar support chair according to any one of claims 1-8, wherein the chair body (1) further comprises a support frame (13), the support frame (13) being arranged below the seat (11), and the bottom of the support frame (13) being provided with universal wheels.