CN210227498U - Backrest and armrest connecting structure of chair - Google Patents
Backrest and armrest connecting structure of chair Download PDFInfo
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- CN210227498U CN210227498U CN201921181337.1U CN201921181337U CN210227498U CN 210227498 U CN210227498 U CN 210227498U CN 201921181337 U CN201921181337 U CN 201921181337U CN 210227498 U CN210227498 U CN 210227498U
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- chair
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- groove
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Abstract
The utility model relates to a chair, in particular to a connecting structure of a backrest and armrests of the chair. The chair comprises armrests and a backrest, wherein the inner side surfaces of the armrests are connected with the two side edges of the backrest in a meshed mode through grooves and rails. The utility model has the advantages of simple and reasonable structure design, the assembly is fast, and screw is small in quantity, and the chair is more pleasing to the eye.
Description
Technical Field
The utility model relates to a chair, in particular to a connecting structure of a backrest and armrests of the chair.
Background
Most of the prior chairs have no connecting structure between the armrests and the backrest, namely, the armrests and the backrest are connected by a large number of screws, so that the surfaces of the armrests and the backrest are too porous, and the attractiveness of the chair is influenced because the surfaces of the screws are easy to oxidize and rust.
Disclosure of Invention
Therefore, the present invention is directed to a backrest and armrest connection structure of a chair with simple structure and reliable connection.
The purpose of the utility model is realized like this.
A backrest and armrest connecting structure of a chair comprises armrests and a backrest, wherein the inner side surfaces of the armrests are connected with the two side edges of the backrest through groove and rail meshing.
The technical scheme can be further perfected as follows.
The inner side surfaces of the armrests protrude out of the rails, the corresponding side edges of the backrest are provided with grooves, the grooves on the two sides of the backrest are meshed with the rails on the inner side surfaces of the armrests, and then the backrest is pressed downwards to realize connection through the grooves meshed with the rails.
The bottom edge of the backrest and the armrest are locked by screws.
The groove is a dovetail groove.
The outer side surface of the backrest protrudes out of the rail, the corresponding inner side surface of the armrest is provided with a groove, the groove on the inner side surface of the armrest is engaged with the rail on the surface of the backrest, and then the backrest is pressed downwards to realize connection through the groove engaged rail.
The utility model has the advantages of simple and reasonable structure design, the assembly is fast, and screw is small in quantity, and the chair is more pleasing to the eye.
Drawings
Fig. 1 is an exploded view of the embodiment.
FIG. 2 is a schematic view of a chair leg and a support seat according to an embodiment.
Fig. 3 is a side view of the embodiment.
Fig. 4 is a sectional view a-a, mainly showing a rail groove fitting structure of the backrest and the armrest.
Fig. 5 is a sectional view B-B mainly showing a connecting structure of the front end portion and the rear end portion of the support base.
Fig. 6 is a cross-sectional view C-C mainly showing the installation structure of the armrest and the coupling seat.
Fig. 7 is a cross-sectional view taken along line D-D, mainly illustrating the armrest and backrest attachment structure.
Fig. 8 is a sectional view taken along line E-E, mainly showing a structural view between the front end portion of the support base and the seat cushion.
Fig. 9 is a sectional view from F to F, mainly showing a structural view of a rear end portion of the support base.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The embodiment is shown in the attached drawings, and the chair comprises chair legs 1, a supporting seat 2, a seat cushion 3, armrests 4 and a backrest 5. The support seat 2 is divided into a front end portion 20 and a rear end portion 21, the front end portion 20 of the support seat is Y-shaped, the rear end portion 21 of the support seat is T-shaped, the front end portion 20 of the support seat is connected with the rear end portion 21 of the support seat through a pivot 22, the front end portion 20 of the support seat and the rear end portion 21 of the support seat can rotate mutually within the range of 0-20 degrees, and the front end portion 20 of the support seat and the rear end portion 21 of the support seat can be locked through rivets. The front part 20 of the support base is mounted on the chair leg 1, and the support base can be adjusted up and down relative to the chair leg, which belongs to the prior art.
The armrest 4 is mounted on the rear end portion 21 of the support base, the rear end portion 21 of the support base is provided with a plug hole 23 on each side of the support base, the bottom end of the armrest 4 extends into the plug hole 23, and the armrest 4 and the rear end portion 21 of the support base are locked by a screw 40.
The rear end of the seat cushion 3 is rotatably connected with the rear end part 21 of the supporting seat, a connector 24 is protruded from the surface of the rear end part of the supporting seat, the rear end of the seat cushion 3 is provided with a pivot seat 30, and the connector 24 is connected with the pivot seat 30 by a pivot 25 for rotation.
The front end of the seat cushion 3 is slidably connected with the front end part 20 of the supporting seat, two sides of the front end part of the seat cushion are respectively provided with a section of horizontal groove 31, a spring cover 32 and a bottom shell 33 are arranged in the horizontal groove 31, the bottom shell 33 is fixedly connected with the seat cushion 3 so that the spring cover is fixed in the horizontal groove, a spring 34 is arranged in a space formed by the spring cover 32 and the bottom shell 33, one end part of the spring 34 is provided with a spring plug 35, the end head of the front end part 20 of the supporting seat is arranged in the bottom shell and is connected with the spring plug 35 through a bolt 36, the other end of the spring 34 abuts against the end wall of the horizontal groove 31, the bottom shell 33 is provided with a.
The inner side surface of the armrest 4 is engaged with the two sides of the backrest through rails and grooves, the inner side surface of the armrest 4 protrudes out of the rails 41, the corresponding side edge of the backrest 5 is provided with the grooves 50, the grooves 50 on the two sides of the backrest are engaged with the rails 41 on the inner surface of the armrest, then the connection is realized by the way that the backrest is engaged with the rails through the grooves downwards, the bottom edge of the backrest 5 is locked with the rear end part 21 of the supporting seat through a screw 51, and meanwhile, the backrest 5 is also locked with the armrest 4 through a screw 42.
When the seat cushion is used, the lifting device can adjust the seat cushion to lift, a person leans backwards when sitting on the seat cushion, the backrest and the seat cushion move backwards and downwards, the seat cushion and the end head of the front end part of the supporting seat compress the spring 34 together when moving backwards and downwards, and when the user stands up or sits straight, the spring can quickly reset the seat cushion and the backrest.
Claims (5)
1. The utility model provides a back and handrail connection structure of chair, includes handrail and back, its characterized in that: the inner side surface of the armrest is engaged and connected with the two side edges of the backrest through a groove and a rail.
2. The backrest and armrest coupling structure of a chair as claimed in claim 1, wherein: the inner side surfaces of the armrests protrude out of the rails, the corresponding side edges of the backrest are provided with grooves, the grooves on the two sides of the backrest are meshed with the rails on the inner side surfaces of the armrests, and then the backrest is pressed downwards to realize connection through the grooves meshed with the rails.
3. The backrest and armrest coupling structure of a chair as claimed in claim 2, wherein: the bottom edge of the backrest and the armrest are locked by screws.
4. The backrest and armrest coupling structure of a chair as claimed in claim 2, wherein: the groove is a dovetail groove.
5. The backrest and armrest coupling structure of a chair as claimed in claim 1, wherein: the outer side surface of the backrest protrudes out of the rail, the corresponding inner side surface of the armrest is provided with a groove, the groove on the inner side surface of the armrest is engaged with the rail on the surface of the backrest, and then the backrest is pressed downwards to realize connection through the groove engaged rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181337.1U CN210227498U (en) | 2019-07-25 | 2019-07-25 | Backrest and armrest connecting structure of chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921181337.1U CN210227498U (en) | 2019-07-25 | 2019-07-25 | Backrest and armrest connecting structure of chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210227498U true CN210227498U (en) | 2020-04-03 |
Family
ID=69992913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921181337.1U Active CN210227498U (en) | 2019-07-25 | 2019-07-25 | Backrest and armrest connecting structure of chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210227498U (en) |
-
2019
- 2019-07-25 CN CN201921181337.1U patent/CN210227498U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |