CN211242467U - Universal I-shaped frame structure for chair - Google Patents
Universal I-shaped frame structure for chair Download PDFInfo
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- CN211242467U CN211242467U CN201922135977.5U CN201922135977U CN211242467U CN 211242467 U CN211242467 U CN 211242467U CN 201922135977 U CN201922135977 U CN 201922135977U CN 211242467 U CN211242467 U CN 211242467U
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- connecting piece
- branch fagging
- frame structure
- shaped frame
- supporting legs
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Abstract
The utility model discloses a universal I-shaped frame structure used on a chair, which comprises an underframe, two supporting legs and a connecting piece which is arranged and connected with a chair back; the two supporting legs are respectively arranged at the left side and the right side of the underframe, and the connecting piece is arranged at the rear side of the underframe. The utility model discloses constitute by chassis, two supporting legs and a connecting piece, wholly be I shape structure, the structure is very firm to the back of the chair can be as required and connecting piece erection joint, with the multiple back of the chair of adaptation, the commonality is very good, offers convenience for installation and use.
Description
Technical Field
The utility model relates to a chair field technique especially indicates a general type I-shaped frame structure for on chair.
Background
The existing seats can be divided into working chairs, learning chairs, meeting chairs and the like according to places, and can be divided into numbing chairs, mesh chairs, leather chairs and anti-static chairs according to fabrics; the existing seat is generally divided into two types of fixed chair back and adjustable chair back, and the chair with the fixed chair back is easy to cause back fatigue after long-term use because the chair back is not adjustable.
The chair seat and the chair back of the chair in the prior art are of a structure which is not detachable, so that the chair seat can not be matched with various chair backs, the universality is poor, and the overall structure is unstable. Accordingly, there is a need for improvements in current seats.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a deficiency of the prior art, and a primary object of the present invention is to provide a universal i-shaped frame structure for a chair, which can effectively solve the problems of poor universality and unstable structure of the chair seat of the prior chair.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a universal I-shaped frame structure used on a chair comprises an underframe, two supporting legs and a connecting piece which is connected with a chair back in an installing way; the two supporting legs are respectively arranged at the left side and the right side of the underframe, and the connecting piece is arranged at the rear side of the underframe.
As a preferred scheme, the chassis is including left branch fagging, right branch fagging, preceding horizontal pole and back horizontal pole, and this left branch fagging and right branch fagging interval set up about, and this preceding horizontal pole is connected between the front end of left branch fagging and right branch fagging, both ends respectively with the front side fixed connection of two supporting legs about the preceding horizontal pole, and this back horizontal pole is connected between the rear end of left branch fagging and right branch fagging, both ends respectively with the rear side fixed connection of two supporting legs about the back horizontal pole, and this connecting piece is installed in the rear end of left branch fagging and right branch fagging.
As a preferred scheme, the connecting piece can be installed at the rear ends of the left support plate and the right support plate in a backward turning mode through the pin shaft, the front end of the connecting piece abuts against the bottom of the rear cross rod, and a return spring is arranged between the connecting piece and the rear cross rod.
As a preferred scheme, all seted up the mounting hole on left branch fagging and the right branch fagging, this back horizontal pole passes the mounting hole, and the front end of left branch fagging and right branch fagging all with preceding horizontal pole welded fastening.
As a preferred scheme, the two supporting legs are welded with fixing rods, the cross sections of the fixing rods are polygonal, the two ends of the front cross rod are sleeved outside the corresponding fixing rods and fixedly connected with the corresponding fixing rods, the cross sections of the two ends of the front cross rod are also polygonal, and the fixing holes of the front cross rod are matched with the fixing rods.
As a preferred scheme, sleeves are welded on the two supporting legs, the sleeves are positioned on the periphery of the fixing rod, and the end part of the front cross rod extends into the sleeves.
Preferably, the supporting leg is formed by integrally bending a pipe fitting.
As a preferable scheme, a plurality of connecting holes are formed in the connecting piece.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
the utility model discloses constitute by chassis, two supporting legs and a connecting piece, wholly be I shape structure, the structure is very firm to the back of the chair can be as required and connecting piece erection joint, with the multiple back of the chair of adaptation, the commonality is very good, offers convenience for installation and use.
The connecting piece is arranged at the rear ends of the left supporting plate and the right supporting plate in a backward turning mode through the hinge pin, and the return spring is arranged in a matched mode, so that the chair back is arranged on the connecting piece in a backward turning mode and has a backward leaning function, and the comfort of the chair is improved.
And thirdly, the cross section of the fixed rod is designed to be a polygon, the cross sections at the two ends of the front cross rod are matched to be polygons, and the fixed holes of the fixed rod are matched with the fixed rod, so that the front cross rod and the supporting legs are easier to install, and the connection is more stable.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;
FIG. 2 is a perspective view of the present invention in another angle;
fig. 3 is an exploded view of the preferred embodiment of the present invention;
FIG. 4 is a cross-sectional view of a preferred embodiment of the present invention;
fig. 5 is a partially enlarged schematic view of a preferred embodiment of the present invention.
The attached drawings indicate the following:
10. underframe 11, left support plate
12. Right support plate 13, front cross bar
14. Rear cross bar 101, mounting hole
102. Fixing hole 20, supporting leg
21. Fixing rod 22, sleeve
30. Connecting piece 31, connecting hole
40. Back 41 and connecting groove
42. Screw hole 51 and pin shaft
52. A return spring 60 and a cushion.
Detailed Description
Referring to fig. 1 to 5, a detailed structure of a preferred embodiment of the present invention is shown, which includes a bottom frame 10, two supporting legs 20, and a connecting member 30 connected to a chair back 40.
The chassis 10 comprises a left support plate 11, a right support plate 12, a front cross rod 13 and a rear cross rod 14, the left support plate 11 and the right support plate 12 are arranged at left and right intervals, the front cross rod 13 is connected between the front ends of the left support plate 11 and the right support plate 12, and the rear cross rod 14 is connected between the rear ends of the left support plate 11 and the right support plate 12. Mounting hole 101 has all been seted up on left branch fagging 11 and the right branch fagging 12, and this back horizontal pole 14 passes mounting hole 101, and the front end of left branch fagging 11 and right branch fagging 12 all with preceding horizontal pole 13 welded fastening.
The two supporting legs 20 are respectively disposed on the left and right sides of the bottom frame 10, in this embodiment, the supporting legs 20 are formed by integrally bending a pipe, the left and right ends of the front cross bar 13 are respectively fixedly connected to the front sides of the two supporting legs 20, and the left and right ends of the rear cross bar 14 are respectively fixedly connected to the rear sides of the two supporting legs 20. The two support legs 20 are welded with fixing rods 21, the cross sections of the fixing rods 21 are polygonal, two ends of the front cross bar 13 are sleeved outside the corresponding fixing rods 21 and fixedly connected with the corresponding fixing rods 21, the cross sections of two ends of the front cross bar 13 are also polygonal, and the fixing holes 102 are matched with the fixing rods 21, in this embodiment, the cross sections of the fixing rods 21 are regular hexagons, and correspondingly, the fixing holes 102 are also regular hexagons, which is not limited; moreover, sleeves 22 are welded on the two supporting legs 20, the sleeves 22 are positioned on the periphery of the fixing rod 21, and the end part of the front cross rod 13 extends into the sleeves 22.
The connector 30 is provided at the rear side of the base frame 10. In this embodiment, the connecting member 30 is mounted at the rear ends of the left and right support plates 11 and 12, and a plurality of connecting holes 31 are formed in the connecting member 30 so as to be fixedly connected to the seat back 40 by bolts. And the connecting piece 30 is arranged at the rear ends of the left support plate 11 and the right support plate 12 in a manner of being capable of being turned backwards through a pin shaft 51, the front end of the connecting piece 30 is abutted against the bottom of the rear cross rod 14, and a return spring 52 is arranged between the connecting piece 30 and the rear cross rod 14, so that the chair back 40 can be elastically tilted backwards and returned forwards.
Detailed description the working principle of the present embodiment is as follows:
when the seat cushion is used, the rear end of the connecting piece 30 is inserted into the connecting groove 41 at the lower end of the chair back 40 for positioning, then, the bolts pass through the connecting holes 31 and are in threaded connection and fixation with the screw holes 42 on the chair back 40, then, the seat cushion 60 is placed on the bottom frame 10, and the seat cushion 60 is fixed with the left support plate 11 and the right support plate 12 by the bolts. When the chair back 40 needs to be replaced, the corresponding bolts can be loosened, the chair back 40 is pulled out, and then another chair back 40 is mounted as before; when the seat cushion needs to be replaced, the corresponding bolts can be loosened, the seat cushion 60 can be taken down, and another seat cushion 60 can be installed as described above.
The utility model discloses a design focus lies in: at first, the utility model discloses constitute by chassis, two supporting legs and a connecting piece, wholly be I shape structure, the structure is very firm to the back of the chair can be as required with connecting piece erection joint, with the multiple back of the chair of adaptation, the commonality is very good, offers convenience for installation and use. Secondly, the connecting piece is arranged at the rear ends of the left supporting plate and the right supporting plate in a backward turning mode through the pin shaft, and the return spring is arranged in a matched mode, so that the chair back is arranged on the connecting piece and has a backward leaning function, and the comfort of the chair is improved. Moreover, the cross section of the fixing rod is designed to be polygonal, the cross sections of the two ends of the front cross rod are also polygonal in a matching mode, and the fixing holes are matched with the fixing rod, so that the front cross rod and the supporting legs are easier to install, and the connection is more stable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (8)
1. A general type I-shaped frame structure for chair is characterized in that: comprises a bottom frame, two supporting legs and a connecting piece which is arranged and connected with a chair back; the two supporting legs are respectively arranged at the left side and the right side of the underframe, and the connecting piece is arranged at the rear side of the underframe.
2. The universal type I-shaped frame structure for chairs according to claim 1, wherein: the chassis is including left branch fagging, right branch fagging, preceding horizontal pole and back horizontal pole, and this left branch fagging and right branch fagging interval set up about, and this preceding horizontal pole is connected between the front end of left branch fagging and right branch fagging, both ends respectively with the front side fixed connection of two supporting legs about the preceding horizontal pole, and this back horizontal pole is connected between the rear end of left branch fagging and right branch fagging, both ends respectively with the rear side fixed connection of two supporting legs about the back horizontal pole, and this connecting piece is installed in the rear end of left branch fagging and right branch fagging.
3. The universal type I-shaped frame structure for chairs according to claim 2, wherein: the connecting piece can be installed at the rear ends of the left support plate and the right support plate in a backward turning mode through a pin shaft, the front end of the connecting piece abuts against the bottom of the rear cross rod, and a return spring is arranged between the connecting piece and the rear cross rod.
4. The universal type I-shaped frame structure for chairs according to claim 2, wherein: mounting holes are formed in the left supporting plate and the right supporting plate, the rear cross rod penetrates through the mounting holes, and the front ends of the left supporting plate and the right supporting plate are fixedly welded with the front cross rod.
5. The universal type I-shaped frame structure for chairs according to claim 2, wherein: the fixing rods are welded on the two supporting legs, the cross sections of the fixing rods are polygonal, the two ends of the front cross rod are sleeved outside the corresponding fixing rods and are fixedly connected with the corresponding fixing rods, the cross sections of the two ends of the front cross rod are also polygonal, and the fixing holes of the front cross rod are matched with the fixing rods.
6. The universal type I-shaped frame structure for chairs according to claim 5, wherein: the two supporting legs are welded with sleeves, the sleeves are located on the periphery of the fixing rod, and the end portions of the front cross rods extend into the sleeves.
7. The universal type I-shaped frame structure for chairs according to claim 1, wherein: the supporting legs are formed by integrally forming and bending pipe fittings.
8. The universal type I-shaped frame structure for chairs according to claim 1, wherein: a plurality of connecting holes are formed in the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922135977.5U CN211242467U (en) | 2019-12-03 | 2019-12-03 | Universal I-shaped frame structure for chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922135977.5U CN211242467U (en) | 2019-12-03 | 2019-12-03 | Universal I-shaped frame structure for chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211242467U true CN211242467U (en) | 2020-08-14 |
Family
ID=71967117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922135977.5U Active CN211242467U (en) | 2019-12-03 | 2019-12-03 | Universal I-shaped frame structure for chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211242467U (en) |
-
2019
- 2019-12-03 CN CN201922135977.5U patent/CN211242467U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210603 Address after: 523000 Jinlong Industrial Park, Jinlong Road, xiekeng village, Qingxi Town, Dongguan City, Guangdong Province Patentee after: Dongguan Zhuo Ming Furniture Co.,Ltd. Address before: 523000 Jinlong Industrial Park, Jinlong Road, xiekeng village, Qingxi Town, Dongguan City, Guangdong Province Patentee before: Tang Dawei |
|
| TR01 | Transfer of patent right |