CN216651823U - Back structure with height-adjustable waist pad - Google Patents
Back structure with height-adjustable waist pad Download PDFInfo
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- CN216651823U CN216651823U CN202220079281.4U CN202220079281U CN216651823U CN 216651823 U CN216651823 U CN 216651823U CN 202220079281 U CN202220079281 U CN 202220079281U CN 216651823 U CN216651823 U CN 216651823U
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- backrest
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Abstract
The utility model provides a bustle height-adjustable's back structure, includes back body and back connecting seat, the lower part of back body is for having elastic bustle part, the bottom rear end of back body is equipped with rather than articulated connecting housing, is equipped with in the connecting housing can left and right wobbling kelly, the preceding terminal surface of back connecting seat is equipped with the mounting groove, is equipped with the cardboard in this mounting groove, is equipped with a plurality of circular arc draw-in grooves of upper and lower arranging on this cardboard, and a side of these a plurality of circular arc draw-in grooves is open structure, the rear end of kelly stretches out and connects the housing outer card in the circular arc draw-in groove. When the height of the waist pad part needs to be raised or lowered, the bottom of the backrest body is pulled upwards or downwards, the clamping rod can swing and be separated from the original matched arc clamping groove, the clamping rod can be clamped into a new arc clamping groove again along with the rising or lowering of the bottom of the backrest body, and the waist pad part has elasticity, so that the waist pad part can be raised or lowered for adjustment along with the rising or lowering of the bottom of the backrest body.
Description
Technical Field
The utility model relates to the field of furniture, in particular to a backrest structure with an adjustable waist cushion height.
Background
An office chair refers to various chairs which are equipped for convenient work in daily work and social activities, and generally comprises casters, chair legs, a lifting rod, a chassis, a chair seat, armrests, a backrest, a waist pillow, a headrest and the like. The back is the important component of office chair, and along with the development of technique, the design of back accords with ergonomic more, fits people's backbone structure more, and the bustle of current back is fixed basically, but everybody's height size differs, and the bustle of fixed back can not satisfy different users ' user demand. In order to make the waist pad of the backrest satisfy the use requirements of different users, the applicant has made intensive studies and has made the present invention.
SUMMERY OF THE UTILITY MODEL
The utility model provides a backrest structure with an adjustable waist cushion height, and mainly aims to solve the problem that the waist cushion height of the conventional backrest cannot be adjusted.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a bustle height-adjustable's back structure, includes back body and back connecting seat, the lower part of back body is for having elastic bustle part, the bottom rear end of back body is equipped with rather than articulated connecting housing, is equipped with in the connecting housing can left and right wobbling kelly, the preceding terminal surface of back connecting seat is equipped with the mounting groove, is equipped with the cardboard in this mounting groove, is equipped with a plurality of circular arc draw-in grooves of upper and lower arranging on this cardboard, and a side of these a plurality of circular arc draw-in grooves is open structure, the rear end of kelly stretches out and connects the casing and block in the circular arc draw-in groove outward, the height that highly is less than the mounting groove of cardboard.
Furthermore, but be equipped with the swing board of left and right swing in the connecting shell, the lower part rear end of swing board is located to the kelly, the left and right lateral surface of swing board all is equipped with first spring groove, the left and right inboard face of connecting the casing all is equipped with the second spring groove, the first spring groove of the left and right lateral surface of swing board corresponds with the second spring groove of the left and right medial surface of connecting the casing respectively, be equipped with the spring erection column in the first spring groove, be equipped with the spring between first spring groove and the second spring groove that corresponds, one end cover of this spring is on the spring erection column.
Furthermore, the front end face of the top of the swing plate is provided with a hinge column, a hinge hole matched with the hinge column is formed in the connecting shell, and the hinge column is located in the hinge hole.
Furthermore, the rear end face of the connecting shell is provided with an arc-shaped movable groove, and the rear end of the clamping rod extends out of the movable groove.
Furthermore, the bottom of the backrest body is provided with two hinge parts which are arranged on the left and right, the front end of the connecting shell is provided with a connecting part, and the connecting part is positioned between the two hinge parts and is hinged with the two hinge parts.
Furthermore, three arc clamping grooves are formed.
As can be seen from the above description of the present invention, the present invention has the following advantages compared with the prior art: the waist pad part is novel in structure and ingenious in design, when the height of the waist pad part needs to be increased or decreased, the bottom of the backrest body is pulled upwards or downwards, the clamping rod can swing and be separated from the original matched arc clamping groove, the clamping rod can be clamped into a new arc clamping groove again along with the increase or decrease of the bottom of the backrest body, and the waist pad part has elasticity, so that the waist pad part can be adjusted to be increased or decreased along with the increase or decrease of the bottom of the backrest body, and the use requirements of users with different body heights and body types can be met.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is an exploded view of the present invention at another angle.
Fig. 5 is a partially enlarged view of fig. 4 at B.
Fig. 6 is a structural view of the swinging plate 8 of the present invention.
Detailed Description
Referring to fig. 1 to 5, a backrest structure with adjustable lumbar pad height comprises a backrest body 1 and a backrest connecting seat 2, wherein the lower part of the backrest body 1 is an elastic lumbar pad part 3, a connecting shell 4 hinged to the backrest body 1 is arranged at the rear end of the bottom of the backrest body 1, and a clamping rod 5 capable of swinging left and right is arranged in the connecting shell 4. The preceding terminal surface of back connecting seat 2 is equipped with mounting groove 6, is equipped with cardboard 7 in this mounting groove 6, is equipped with three circular arc draw-in groove 71 that upper and lower arranged on this cardboard 7, and a side of this three circular arc draw-in groove 71 is open structure, the rear end of kelly 5 stretches out and connects the casing 4 outer card in circular arc draw-in groove 71, the height that highly is less than mounting groove 6 of cardboard 7.
Referring to fig. 1 to 6, a swing plate 8 capable of swinging left and right is provided in the connecting housing 4, and the clamping rod 5 is provided at the rear end of the lower portion of the swing plate 8. The left and right sides of the swing plate 8 are provided with first spring grooves 81, the left and right inner sides of the connecting shell 4 are provided with second spring grooves 41, the first spring grooves 81 of the left and right sides of the swing plate 8 correspond to the second spring grooves 41 of the left and right inner sides of the connecting shell 4, the first spring grooves 81 are provided with spring mounting columns 82, springs 9 are arranged between the first spring grooves 81 and the corresponding second spring grooves 41, and one ends of the springs 9 are sleeved on the spring mounting columns 82. The front end face of the top of the swing plate 8 is provided with a hinge column 83, a hinge hole 42 matched with the hinge column 83 is formed in the connecting shell 4, and the hinge column 83 is located in the hinge hole 42. The rear end face of the connecting shell 4 is provided with an arc-shaped movable groove 43, and the rear end of the clamping rod 5 extends out of the movable groove 43.
Referring to fig. 2 and 3, the backrest body 1 is provided at the bottom thereof with two hinge portions 10 arranged left and right, and the connecting housing 4 is provided at the front end thereof with a connecting portion 44, wherein the connecting portion 44 is located between the two hinge portions 10 and is hinged to the two hinge portions 10.
Referring to fig. 1 to 6, the design principle of the present invention is as follows: when the height of the waist pad part 3 needs to be raised or lowered, the bottom of the backrest body 1 is pulled upwards or downwards, the connecting shell 4 can also move upwards or downwards along with the backrest body 1, the clamping rod 5 abuts against the inner side surface of the original matched arc clamping groove 71 when the connecting shell 4 moves upwards or downwards, the swinging plate 8 and the clamping rod 5 can swing and are separated from the original matched arc clamping groove 71, the clamping rod 5 can be clamped into a new arc clamping groove 71 again along with the rising or lowering of the bottom of the backrest body 1, and the waist pad part 3 has elasticity, so that the waist pad part 3 can be raised or lowered for adjustment along with the rising or lowering of the bottom of the backrest body 1, and the use requirements of users with different body sizes are met.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (6)
1. The utility model provides a bustle height-adjustable's back structure which characterized in that: including back body and back connecting seat, the lower part of back body is for having elastic waist pad portion, the bottom rear end of back body is equipped with rather than articulated connecting casing, is equipped with in the connecting casing can left and right wobbling kelly, the preceding terminal surface of back connecting seat is equipped with the mounting groove, is equipped with the cardboard in this mounting groove, is equipped with a plurality of circular arc draw-in grooves of upper and lower arranging on this cardboard, and a side of these a plurality of circular arc draw-in grooves is open structure, the rear end of kelly stretches out and connects the outer card of casing in the circular arc draw-in groove, the height that highly is less than the mounting groove of cardboard.
2. The lumbar pad height adjustable backrest structure of claim 1, wherein: but be equipped with the swing board of left and right swing in the connecting shell body, the lower part rear end of swing board is located to the kelly, the left and right lateral surface of swing board all is equipped with first spring groove, the left and right inboard face of connecting the casing all is equipped with second spring groove, the first spring groove of the left and right lateral surface of swing board corresponds with the second spring groove of the left and right medial surface of connecting the casing respectively, be equipped with the spring erection column in the first spring groove, be equipped with the spring between first spring groove and the second spring groove that corresponds, the one end cover of this spring is on the spring erection column.
3. A lumbar pad height adjustable back rest structure as claimed in claim 2, wherein: the terminal surface is equipped with the hinge post before the top of swing board, be equipped with the hinge hole with hinge post looks adaptation in the connecting shell, the hinge post is located the hinge hole.
4. The lumbar pad height adjustable backrest structure of claim 1, wherein: the rear end face of the connecting shell is provided with an arc-shaped movable groove, and the rear end of the clamping rod extends out of the movable groove.
5. A lumbar pad height adjustable backrest structure, as claimed in claim 1, wherein: the backrest comprises a backrest body and is characterized in that two hinge parts which are arranged left and right are arranged at the bottom of the backrest body, a connecting part is arranged at the front end of the connecting shell, and the connecting part is located between the two hinge parts and is hinged with the two hinge parts.
6. The lumbar pad height adjustable backrest structure of claim 1, wherein: the arc clamping grooves are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220079281.4U CN216651823U (en) | 2022-01-13 | 2022-01-13 | Back structure with height-adjustable waist pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220079281.4U CN216651823U (en) | 2022-01-13 | 2022-01-13 | Back structure with height-adjustable waist pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216651823U true CN216651823U (en) | 2022-06-03 |
Family
ID=81762821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220079281.4U Active CN216651823U (en) | 2022-01-13 | 2022-01-13 | Back structure with height-adjustable waist pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216651823U (en) |
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2022
- 2022-01-13 CN CN202220079281.4U patent/CN216651823U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |