CN218683125U - Back of chair with adjustable waist is leaned on - Google Patents
Back of chair with adjustable waist is leaned on Download PDFInfo
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- CN218683125U CN218683125U CN202222756177.7U CN202222756177U CN218683125U CN 218683125 U CN218683125 U CN 218683125U CN 202222756177 U CN202222756177 U CN 202222756177U CN 218683125 U CN218683125 U CN 218683125U
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- adjuster
- lumbar support
- polygonal
- adjustable
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- 238000004519 manufacturing process Methods 0.000 abstract description 2
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- 230000036541 health Effects 0.000 description 1
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Abstract
The utility model discloses a back of chair with adjustable waist is leaned on, wherein, include: the end face of the chair back, which is opposite to the back of the human body, is provided with a waist rest adjuster fixing device; the waist rest adjuster is rotatably connected with the waist rest adjuster fixing device and adjusts the distance protruding out of the waist rest adjuster fixing device according to the rotation of the waist rest adjuster; the waist leans on, the one end fixed mounting that the waist leaned on in the back of the chair, the waist lean on with the waist leans on the regulator to offset. Use the utility model discloses, overall structure is simple, only needs the waist to lean on regulator and waist to lean on regulator fixing device can lean on to carry out angle modulation to the waist, when convenient operation is adjusted, has also reduced the cost of manufacture that the waist leaned on the mould effectively in making.
Description
Technical Field
The utility model relates to a technical field of furniture official working class especially relates to a back of chair with adjustable waist is leaned on.
Background
Along with the improvement of the requirements on the office environment, people pay more attention to the self health condition, so more and more people pay more attention to the comfort level of the environment where the people are located when the people are on duty. Therefore, people pay more attention to the functions while considering the appearance of the chair.
Studies have shown that the spine bears 100% of the weight of a person standing, 150% when seated, and 250% when seated in a forward leaning position. Most chairs on the market have a back that provides support for the body, with a lumbar support to support the waist.
The waist rest of the existing chair is usually adjusted through a waist rest adjuster, but the waist rest adjuster is complex in structure and needs to be provided with a front sliding seat and a rear sliding seat and an upper sliding seat and a lower sliding seat along the back direction of a human body, and the waist rest is adjusted through a sliding block which is connected with the front sliding seat and the rear sliding seat in a matching way and the upper sliding seat and the lower sliding seat in a matching way. However, when a person sits on the chair, the waist support can be adjusted without the need of large-scale front-back up-and-down adjustment of the backrest, and only the waist support needs to be adjusted finely.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a back with adjustable lumbar support.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
a lumbar adjustable chair back, comprising: the end face of the chair back, which is opposite to the back of the human body, is provided with a waist rest adjuster fixing device; the waist support adjuster is rotatably connected with the waist support adjuster fixing device and adjusts the distance protruding out of the waist support adjuster fixing device according to the rotation of the waist support adjuster; the waist leans on, the one end fixed mounting of waist leans on in the back of the chair, the waist lean on with the waist leans on the regulator to offset.
The above-mentioned back of the chair with adjustable lumbar support, wherein, the regulator fixing device of lumbar support includes: the two bulges are respectively provided with a through hole, and a gap is formed between the two bulges.
The waist leans on adjustable back of the chair, wherein, the waist leans on the regulator to be circular, the waist leans on the regulator to set up the eccentric orfice that link up, the waist leans on the regulator rotationally to locate two in the clearance between the arch, and eccentric orfice and two the through-hole is concentric.
In the above adjustable chair back for waist rest, the eccentric hole is a polygonal hole.
The above-mentioned adjustable back of a chair of lumbar support still includes wherein: the adjusting device comprises two adjusting rods, wherein a polygonal rod is convexly arranged at one end of the first adjusting rod and is in penetrating connection with the through hole and the eccentric hole, a polygonal groove is formed at one end of the second adjusting rod, and the polygonal rod is embedded in the polygonal groove in a matching mode.
The lumbar support adjustable chair back is characterized in that the polygonal rod is matched with the polygonal hole.
The chair back with the adjustable lumbar support is characterized in that the lumbar support is arc-shaped, and an arc-shaped bulge is arranged on the end face of the lumbar support opposite to the lumbar support adjuster.
The utility model discloses owing to adopted above-mentioned technique, make it compare the positive effect that has with prior art and be:
the utility model discloses simple structure only needs the waist to lean on regulator and waist to lean on regulator fixing device can lean on to carry out angle modulation to the waist, when convenient operation is adjusted, has also reduced the cost of manufacture that the waist leaned on the mould effectively in making.
Drawings
Fig. 1 is a schematic view of a chair back with an adjustable lumbar support according to the present invention;
fig. 2 is an exploded view of a chair back with an adjustable lumbar support according to the present invention;
fig. 3 is a schematic view of a back-to-back middle lumbar support adjuster with adjustable lumbar support according to the present invention;
fig. 4 is a side view of a chair back with an adjustable lumbar support of the present invention;
fig. 5 is a schematic view of a middle lumbar support of a chair back with an adjustable lumbar support of the present invention.
In the drawings: 1. a chair back; 2. a lumbar support adjuster; 21. an eccentric hole; 3. a waist support; 31. an arc-shaped bulge; 4. a lumbar support adjuster fixing device; 41. a protrusion; 42. a through hole; 5. a first adjusting lever; 51. a polygonal rod; 6. a second adjusting lever; 61. a polygonal groove.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, there is shown a preferred embodiment lumbar adjustable chair back comprising: a chair back 1, a lumbar support regulator 2 and a lumbar support 3. The end face of the chair back 1, which is opposite to the back of the human body, is provided with a waist support regulator fixing device 4, the waist support regulator 2 is installed on the waist support regulator fixing device 4, the waist support regulator 2 can rotate relative to the waist support regulator fixing device 4, and the distance of the waist support regulator 2 protruding out of the waist support regulator fixing device 4 can be adjusted according to the rotation of the waist support regulator 2. One end of the lumbar support 3 is fixedly arranged on the chair back 1, the lumbar support 3 is abutted against the lumbar support regulator 2, and the lumbar support regulator 2 is rotated to change the distance of the lumbar support regulator 2 protruding out of the lumbar support regulator fixing device 4, so that the angle of the lumbar support 3 abutted against the lumbar support regulator is adjusted, and the adjustment of the lumbar support 3 is realized.
The utility model discloses still have following embodiment on above-mentioned basis:
further, as a preferred embodiment, with continued reference to fig. 1-5, the lumbar support adjuster fixing device 4 comprises: two bulges 41, two bulges 41 are arranged on the end surface of the chair back 1 facing the back of the human body, and a gap is formed between the two bulges 41. Meanwhile, the two protrusions 41 are respectively provided with through holes 42.
Further, in a preferred embodiment, the lumbar support adjuster 2 has a circular cross section, and the lumbar support adjuster 2 is provided with a through eccentric hole 21. The lumbar support adjuster 2 is installed in the gap between the two protrusions 41, the eccentric hole 21 of the installed lumbar support adjuster 2 is concentric with the two through holes 42, and the lumbar support adjuster 2 can rotate relative to the two protrusions 41.
Further, in a preferred embodiment, the eccentric hole 21 is a polygonal hole.
Further, in a preferred embodiment, the adjustable lumbar support backrest further comprises: the adjusting device comprises two adjusting rods, namely a first adjusting rod 5 and a second adjusting rod 6, wherein one end of the first adjusting rod 5 is convexly arranged to form a polygonal rod 51, and one end of the second adjusting rod 6 is formed to form a polygonal groove 61. The polygonal rod 51 of the first adjusting rod 5 is inserted through the first through hole 42, the eccentric hole 21 and the second through hole 42 in sequence, the second adjusting rod 6 is close to the second through hole 42, and the polygonal rod 51 can be embedded into the polygonal groove 61 in a matching mode.
Further, in the preferred embodiment, the polygonal rod 51 is matched with the eccentric hole 21, so that the lumbar support adjuster 2 can be rotated by rotating the first adjusting lever 5 and/or the second adjusting lever 6.
Further, in a preferred embodiment, the lumbar support 3 is arc-shaped, an end surface of the lumbar support 3 facing the lumbar support adjuster 2 is provided with an arc-shaped protrusion 31, and the arc-shaped protrusion 31 contacts the lumbar support adjuster 2. The lumbar support adjuster 2 is rotated by the first adjustment lever 5 and/or the second adjustment lever 6 so that the lumbar support adjuster 2 changes the distance protruding from the lumbar support adjuster fixing means 4, and then a force in a direction toward the back of the human body or a force in a direction away from the back of the human body is applied to the arc-shaped protrusion 31 to adjust the angle of the lumbar support 3.
Further, in a preferred embodiment, the end surface of the arc-shaped protrusion 31 contacting the lumbar support adjuster 2 is formed with a recess.
Furthermore, in a preferred embodiment, a threaded hole is formed at the lower end of the lumbar support 3, a threaded hole is formed in the end surface of the chair back 1 below the lumbar support adjuster fixing device 4, and the lumbar support 3 and the chair back 1 are fixedly connected by penetrating two threaded holes through screws.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope and embodiments of the present invention, and it should be appreciated by those skilled in the art that various equivalent and obvious modifications can be made in the present invention and the description and drawings, and all such modifications are intended to be included within the scope and spirit of the present invention.
Claims (7)
1. A lumbar support adjustable chair back, comprising:
the end face of the chair back, which is opposite to the back of the human body, is provided with a waist rest adjuster fixing device;
the waist rest adjuster is rotatably connected with the waist rest adjuster fixing device and adjusts the distance protruding out of the waist rest adjuster fixing device according to the rotation of the waist rest adjuster;
the waist leans on, the one end fixed mounting that the waist leaned on in the back of the chair, the waist lean on with the waist leans on the regulator to offset.
2. The lumbar adjustable chair back of claim 1, wherein the lumbar adjuster fixture comprises: the two bulges are respectively provided with a through hole, and a gap is formed between the two bulges.
3. The reclining adjustable chair back of claim 2, wherein said reclining adjuster is circular, said reclining adjuster having a through eccentric hole, said reclining adjuster being rotatably disposed in a gap between said two protrusions, and said eccentric hole being concentric with said two through holes.
4. The adjustable lumbar support chair back of claim 3, wherein said eccentric aperture is a polygonal aperture.
5. The lumbar adjustable chair back of claim 4, further comprising: the adjusting device comprises two adjusting rods, wherein a polygonal rod is convexly arranged at one end of the first adjusting rod and is in penetrating connection with the through hole and the eccentric hole, a polygonal groove is formed at one end of the second adjusting rod, and the polygonal rod is embedded in the polygonal groove in a matching mode.
6. The lumbar adjustable chair back of claim 5, wherein said polygonal bar matches said polygonal hole.
7. The adjustable lumbar support back of claim 1, wherein the lumbar support is arcuate in shape, and an arcuate projection is provided on an end surface of the lumbar support facing the lumbar support adjuster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222756177.7U CN218683125U (en) | 2022-10-19 | 2022-10-19 | Back of chair with adjustable waist is leaned on |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222756177.7U CN218683125U (en) | 2022-10-19 | 2022-10-19 | Back of chair with adjustable waist is leaned on |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218683125U true CN218683125U (en) | 2023-03-24 |
Family
ID=85587345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222756177.7U Active CN218683125U (en) | 2022-10-19 | 2022-10-19 | Back of chair with adjustable waist is leaned on |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218683125U (en) |
-
2022
- 2022-10-19 CN CN202222756177.7U patent/CN218683125U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314312 Building 1, liangchuang Center (phase I), No. 588 Jinshan Road, Baibu Town, Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Jiaxing Pinyou Pet Technology Co.,Ltd. Country or region after: China Address before: 314312 Building 1, liangchuang Center (phase I), No. 588 Jinshan Road, Baibu Town, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: Jiayuan PET technology (Jiaxing) Co.,Ltd. Country or region before: China |