CN216135497U - Backrest structure of office chair - Google Patents
Backrest structure of office chair Download PDFInfo
- Publication number
- CN216135497U CN216135497U CN202120407457.XU CN202120407457U CN216135497U CN 216135497 U CN216135497 U CN 216135497U CN 202120407457 U CN202120407457 U CN 202120407457U CN 216135497 U CN216135497 U CN 216135497U
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- spring steel
- waist
- steel sheet
- sheet
- office chair
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Abstract
The utility model discloses an office chair backrest structure, comprising: the waist pillow part swings back and forth below the upper back part through the connecting component; when the waist pillow is used, the waist pillow part can swing backwards for a certain distance after being stressed by utilizing the elastic deformation effect of the spring steel sheet and the rubber sheet so as to be suitable for users with different waist sizes and support the waist position of the user to effectively relieve the waist pressure; the waist pillow part can automatically reset forwards after the waist of the user leaves the waist pillow part; the cooperation of sheet rubber and spring steel piece has fine elastic effect and guarantees structural connection intensity, and overall structure is simple, installation, convenient to use.
Description
Technical Field
The utility model relates to an office chair, in particular to an office chair backrest structure.
Background
People often need to sit for work for a long time when working, and can cause certain strain to lumbar, so that waist pillows need to be placed at the waist of a chair to relieve waist pressure, but different waist pillows cannot be used in a way of being matched with the shape of a backrest of the chair, and inconvenience is caused to users; while some chairs have a lumbar pillow part arranged at the lower part of the backrest, the structures are complex and are troublesome to install.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the related art. Therefore, the utility model provides an office chair backrest structure.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
an office chair back structure according to an embodiment of a first aspect of the utility model includes:
a back upper portion including a back upper frame;
the waist pillow part comprises a back lower frame, and the back lower frame is connected below the back upper frame;
the connecting assembly is used for connecting the upper back frame and the lower back frame and comprises a spring steel sheet and a rubber sheet, the upper parts of the spring steel sheet and the rubber sheet are inserted into the upper back frame from the bottom of the upper back frame to be fixedly connected, the lower parts of the spring steel sheet and the rubber sheet are inserted into the lower back frame from the top of the lower back frame to be fixedly connected, and the planes of the spring steel sheet and the rubber sheet face to each other from front to back;
wherein, the waist pillow part swings back and forth below the upper part of the back through the connecting component.
The office chair backrest structure provided by the embodiment of the utility model at least has the following beneficial effects: when the waist pillow is used, the waist pillow part can swing backwards for a certain distance after being stressed by utilizing the elastic deformation effect of the spring steel sheet and the rubber sheet so as to be suitable for users with different waist sizes and support the waist position of the user to effectively relieve the waist pressure; the waist pillow part can automatically reset forwards after the waist of the user leaves the waist pillow part; the cooperation of sheet rubber and spring steel piece has fine elastic effect and guarantees structural connection intensity, and overall structure is simple, installation, convenient to use.
According to some embodiments of the utility model, the spring steel sheet and the rubber sheet are attached to each other.
According to some embodiments of the utility model, a clamping head is arranged in the back upper frame, and clamping grooves matched with the clamping head are arranged on the spring steel sheet and the rubber sheet.
According to some embodiments of the utility model, the clip is in a transversely extending plate-shaped structure, and the clamping groove is arranged along the transverse side direction of the spring steel sheet and the rubber sheet.
According to some embodiments of the utility model, mounting bosses are arranged in the bottom of the back upper frame and the upper part of the back lower frame, and the back surfaces of the spring steel sheets or the rubber sheets are attached to the front end surfaces of the mounting bosses for mounting.
According to some embodiments of the utility model, the mounting boss is provided with a mounting hole, and the spring steel sheet and the rubber sheet are fixedly connected with the mounting hole through a screw.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 1;
fig. 4 is a partially enlarged schematic view of fig. 2.
Reference numerals: a back upper portion 100; a back-up frame 110; a lumbar pillow portion 200; a back lower frame 210; a spring steel plate 310; a rubber sheet 320; a chuck 111; a card slot 400; mounting the boss 500; and a mounting hole 510.
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 or similar 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 illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
As shown, an office chair back structure includes a back upper portion 100, a lumbar pillow portion 200, and a connecting assembly 300. The back upper portion 100 includes a back upper frame 110, and the lumbar pillow portion 200 includes a back lower frame 210. The back lower frame 210 is connected below the back upper frame 110 by a connection assembly 300. The connecting assembly 300 includes a spring steel plate 310 and a rubber plate 320, the upper portions of the spring steel plate 310 and the rubber plate 320 are inserted into the upper back frame 110 from the bottom of the upper back frame 110 and can be fixedly connected by fasteners such as screws, and the lower portions of the spring steel plate 310 and the rubber plate 320 are inserted into the lower back frame 210 from the top of the lower back frame 210 and can be fixedly connected by fasteners such as screws. The planes of the fixed back spring steel plate 310 and the rubber plate 320 face to the front and back, and the spring steel plate 310 can be positioned in front of or behind the rubber plate 320. When in use, the elastic deformation effect of the spring steel sheet 310 and the rubber sheet 320 is utilized, the lumbar pillow part 200 can swing backwards for a certain distance after being stressed, so that the waist support device is suitable for users with different waist sizes, and supports the waist position of the user to effectively relieve the waist pressure; the waist pillow part 200 can automatically reset forwards after the waist of the user leaves the waist pillow part 200; the cooperation of rubber sheet 320 and spring steel sheet 310 has fine elastic effect and guarantees structural connection intensity, and overall structure is simple, installation, convenient to use.
In some embodiments of the present invention, the spring steel plate 310 and the rubber plate 320 are attached to each other. The two are attached to each other, so that the spring steel sheet 310 and the rubber sheet 320 can be positioned and installed at the same time, the assembly efficiency is improved, and the connection strength can be further improved.
In some embodiments of the present invention, the back upper frame 110 is provided with a clip 111 therein, and the spring steel plate 310 and the rubber plate 320 are provided with a slot 400 matching with the clip 111. The upper parts of the spring steel sheet 310 and the rubber sheet 320 are inserted into the back upper frame 110, and are positioned and installed by utilizing the clamping fit between the clamping groove 400 and the clamping head 111; meanwhile, the chuck 111 has a hanging function on the chuck groove 400.
Further, the chuck 111 is a transversely extending plate-shaped structure, and the engaging groove 400 is disposed along the transverse sides of the spring steel plate 310 and the rubber plate 320. When the clamping head 111 is installed, the clamping head is transversely inserted into the clamping groove 400, the contact area between the clamping head 111 and the clamping groove 400 can be increased by transversely extending the clamping head, and the connection stability is ensured.
In some embodiments of the present invention, the mounting bosses 500 are disposed in the bottom of the upper back frame 110 and the upper portion of the lower back frame 210, and the back surfaces of the spring steel plates 310 or the rubber plates 320 are attached to the front end surfaces of the mounting bosses 500 for mounting. As shown in the figure, when the rubber sheet 320 is located behind the spring steel sheet 310, the mounting bosses 500 are attached to the upper and lower portions of the back surface of the rubber sheet 320, so as to increase the area of the supporting contact surface, and when the lumbar pillow portion 200 swings backwards under a force, the rubber sheet 320 and the spring steel sheet 310 are mainly elastically deformed at a position between the two mounting bosses 500.
Further, the mounting boss 500 is provided with a mounting hole 510, and the spring steel plate 310 and the rubber plate 320 are fixedly connected with the mounting hole 510 through a screw.
In the description herein, references to the description of "some specific embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. An office chair back structure, comprising:
a back upper portion (100) comprising a back upper frame (110);
a lumbar pillow section (200) including a back lower frame (210), the back lower frame (210) being connected below the back upper frame (110);
the connecting assembly (300) is used for connecting the back upper frame (110) and the back lower frame (210), the connecting assembly (300) comprises a spring steel sheet (310) and a rubber sheet (320), the upper portions of the spring steel sheet (310) and the rubber sheet (320) are inserted into the back upper frame (110) from the bottom of the back upper frame (110) to be fixedly connected, the lower portions of the spring steel sheet (310) and the rubber sheet (320) are inserted into the back lower frame (210) from the top of the back lower frame (210) to be fixedly connected, and the planes of the spring steel sheet (310) and the rubber sheet (320) face to each other in the front-back direction;
wherein the lumbar pillow part (200) swings back and forth under the upper back part (100) through the connecting component (300).
2. The office chair back structure according to claim 1, wherein: the spring steel sheet (310) and the rubber sheet (320) are mutually attached.
3. An office chair back structure according to claim 1 or 2, wherein: be equipped with dop (111) in back of the body frame (110), spring steel sheet (310) with all be equipped with on rubber sheet (320) with draw-in groove (400) of dop (111) cooperation.
4. An office chair back structure according to claim 3, wherein: the clamping head (111) is of a transversely extending plate-shaped structure, and the clamping groove (400) is arranged along the transverse side directions of the spring steel sheet (310) and the rubber sheet (320).
5. The office chair back structure according to claim 2, wherein: the back of the body is equipped with in upper ledge (110) bottom and all be equipped with installation boss (500) in lower ledge (210) upper portion of the back, spring steel sheet (310) or the back laminating of sheet rubber (320) is in install on the boss (500) front end face.
6. The office chair back structure according to claim 5, wherein: the mounting boss (500) is provided with a mounting hole (510), and the spring steel sheet (310) and the rubber sheet (320) are fixedly connected with the mounting hole (510) through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120407457.XU CN216135497U (en) | 2021-02-24 | 2021-02-24 | Backrest structure of office chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120407457.XU CN216135497U (en) | 2021-02-24 | 2021-02-24 | Backrest structure of office chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216135497U true CN216135497U (en) | 2022-03-29 |
Family
ID=80798020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120407457.XU Active CN216135497U (en) | 2021-02-24 | 2021-02-24 | Backrest structure of office chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216135497U (en) |
-
2021
- 2021-02-24 CN CN202120407457.XU patent/CN216135497U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 528203 No. 206, No. 2, Yuannan Second Road, Shazui Industrial Zone, Jiujiang Town, Nanhai District, Foshan City, Guangdong Province (residence declaration) Patentee after: FOSHAN KEZHIMEI FURNITURE Co.,Ltd. Address before: 528208 2nd floor, block a, chenweiming complex building, block e1-2, Shatou Park, logistics industrial park, Jiujiang Town, Nanhai District, Foshan City, Guangdong Province Patentee before: FOSHAN KEZHIMEI FURNITURE Co.,Ltd. |