CN220275251U - Chair backrest frame and chair - Google Patents
Chair backrest frame and chair Download PDFInfo
- Publication number
- CN220275251U CN220275251U CN202321504252.9U CN202321504252U CN220275251U CN 220275251 U CN220275251 U CN 220275251U CN 202321504252 U CN202321504252 U CN 202321504252U CN 220275251 U CN220275251 U CN 220275251U
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- Prior art keywords
- annular
- chair
- convex rib
- outer convex
- extension strip
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- 239000004744 fabric Substances 0.000 claims abstract description 55
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims 1
- 238000007373 indentation Methods 0.000 claims 1
- 238000009661 fatigue test Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 description 19
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 15
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model relates to the technical field of chair frames, in particular to a chair frame and a chair. The device solves the problems that the existing cover plate and the mesh are fixed by leaning on the frame, flanging exists in the fatigue testing process, the cover plate and the mesh are uneven in the joint of leaning on the frame, and the whole mesh is not firm. The chair backrest frame comprises an annular frame body, the annular frame body is provided with an outer convex rib arranged along the circumferential direction of the annular frame body, the chair backrest frame also comprises an outer convex rib extension bar which is fixed on the annular frame body and is connected to two ends of the outer convex rib, and the outer convex rib extension bar form an annular convex rib for wrapping backrest cloth. The application has the advantages that: the chair leaning frame solves the problems of flanging and the like, and avoids the loose and loose integral fixation of the mesh cloth caused by uneven joints.
Description
Technical Field
The utility model relates to the technical field of chair frames, in particular to a chair frame and a chair.
Background
Along with the progress of society, people also have higher and higher to the quality and the comfort level requirement of chair, and current back of the chair can set up the screen cloth generally and lean on the frame, and the screen cloth leans on the frame to lean on the frame to be fixed in the screen cloth with the screen cloth tensioning through the apron, but current apron and screen cloth lean on the frame fixed and have circumstances such as turn-ups in the fatigue test process, very easily lead to apron and screen cloth lean on frame junction uneven, have the screen cloth wholly fixed insecure, cause the lax screen cloth to seriously influence use experience and travelling comfort.
For example, chinese patent discloses a take back of the body of leaning on chinese patent No. (CN 202220036859.8) of back of the chair, office chair back bearing structure, including back of the chair frame and waist lean on, the waist lean on be arranged in the back of the chair frame just the both ends that the waist leaned on are connected respectively the back of the chair frame, its characteristics are, office chair back of the chair bearing structure still includes back of the chair apron and back of the chair front bezel, the back of the chair frame includes down the frame, back of the chair back of the apron with down the frame is connected, back of the chair front bezel is located back of the chair apron with down between the frame and joint back of the chair back of the plate. The novel design of this scheme is ingenious, novel structure succinct, part are few, equipment is convenient, with low costs, and very comfortable, easy and other chair product collocations, easy popularization.
Although the above-mentioned scheme is connected with the lower frame through back of the chair back apron, back of the chair front shroud is located between back of the chair back apron and the lower frame and joint back of the chair back apron in order to realize holistic connection, the aforesaid is not solved and is had circumstances such as turn-ups in the fixed and fatigue test process of apron and lower frame that mention.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a chair backrest frame and a chair for solving the technical problems.
The aim of the utility model can be achieved by the following technical scheme:
the chair backrest frame comprises an annular frame body, wherein the annular frame body is provided with an outer convex rib arranged along the circumferential direction of the annular frame body, the chair backrest frame further comprises an outer convex rib extension strip which is fixed on the annular frame body and is connected to two ends of the outer convex rib, and the outer convex rib extension strip form an annular convex rib for wrapping backrest cloth.
In the chair backrest frame, the two ends of the outer convex rib are respectively provided with a first concave-convex structure, the two ends of the outer convex rib extension strip are respectively provided with a second concave-convex structure, the first concave-convex structure arranged at one end of the outer convex rib is in concave-convex fit with the second concave-convex structure arranged at one end of the outer convex rib extension strip, and the first concave-convex structure arranged at the other end of the outer convex rib is in concave-convex fit with the second concave-convex structure arranged at the other end of the outer convex rib extension strip.
In the chair backrest frame, the first concave-convex structure comprises a notch arranged at the corresponding end part of the outer convex rib, the second concave-convex structure comprises outer convex buckles arranged at the corresponding end part of the outer convex rib extension strip, and one outer convex buckle is buckled in one notch.
In the chair backrest frame, the notch is arranged on the back side of the corresponding end part of the outer convex rib, and the outer convex buckle extends outwards along the length direction of the outer convex rib extension strip.
In the chair backrest frame, the back side surface of the outer convex rib and the back side surface of the outer convex rib extension strip form a first annular cloth fixing surface, the outer peripheral surface of the annular frame body is provided with a second annular cloth fixing surface positioned at the rear side of the first annular cloth fixing surface, and the first annular cloth fixing surface and the second annular cloth fixing surface form an annular mesh groove.
In the chair backrest frame, the outer convex rib extension strip is connected with the lower side edge of the annular frame body in a sleeved mode.
In the chair backrest frame, a positioning groove with a notch facing the outer convex rib extension strip is formed in the lower side edge of the annular frame body, and an annular portion which is inserted into the positioning groove and matched with the positioning groove is formed in the back surface of the outer convex rib extension strip in the thickness direction.
The chair backrest frame is characterized in that a plurality of butt joint columns with threaded holes are arranged at the bottom of the positioning groove, a plurality of sleeve joint rings which are in one-to-one sleeve joint with the butt joint columns are arranged on the back of the outer convex rib extension strip, and fasteners penetrating through the sleeve joint rings and in threaded connection with the threaded holes are arranged on the outer convex rib extension strip in a penetrating mode.
In the chair backrest frame, the peripheral surface of the sleeve ring is connected with the inner walls of two opposite sides of the annular part.
Chair comprising a chair back frame according to any one of the above.
Compared with the prior art, the chair backrest frame has the following beneficial effects:
the chair leaning frame has solved circumstances such as turn-ups, avoid the mesh cloth that the junction unevenness leads to wholly fixed insecure and mesh cloth is lax, through linking the evagination muscle extension strip at evagination muscle both ends on annular framework, and set up first concave-convex structure at evagination muscle both ends, evagination muscle extension strip both ends set up the unsmooth cooperation of the unsmooth knot of corresponding tip breach of first unsmooth structure and the corresponding end evagination of second, evagination muscle extension strip dorsal surface forms first annular cloth fixed surface, annular framework outer peripheral face is equipped with the fixed surface of second annular cloth, first annular cloth fixed surface and the fixed surface of second annular cloth form annular mesh cloth groove.
Drawings
Fig. 1 is a schematic view of a chair backrest frame according to an embodiment of the present utility model.
Fig. 2 is a half cross-sectional view of fig. 1.
Fig. 3 is a schematic view of a partial structure of fig. 1.
Fig. 4 is a schematic view of another state structure of fig. 3.
Fig. 5 is another partial schematic structure of fig. 1.
Fig. 6 is an enlarged view at a in fig. 3.
In the figure, an annular frame body 1, a positioning groove 11, a butt joint column 111, an outer convex rib 2, a first concave-convex structure 21, a notch 211, an outer convex rib extension strip 3, a second concave-convex structure 31, an outer convex buckle 311, an annular part 32, a sleeve joint ring 33, a first annular cloth fixing surface 4, a second annular cloth fixing surface 5, an annular mesh slot 6 and a fastener 7.
Detailed Description
The following are specific embodiments of the utility model and the technical solutions of the utility model will be further described with reference to the accompanying drawings, but the utility model is not limited to these embodiments.
Example 1
As shown in fig. 1 to 6, a chair backrest frame comprises an annular frame body 1, an outer convex rib 2 arranged along the circumferential direction of the annular frame body 1 is arranged on the annular frame body 1, the chair backrest frame further comprises an outer convex rib extension strip 3 which is fixed on the annular frame body 1 and is connected with two ends of the outer convex rib 2, and the outer convex rib 2 and the outer convex rib extension strip 3 form an annular convex rib for coating backrest cloth.
In order to realize the connection between the outer rib 2 and the outer rib extension strip 3, specifically, in this embodiment, the two ends of the outer rib 2 are respectively provided with a first concave-convex structure 21, the two ends of the outer rib extension strip 3 are respectively provided with a second concave-convex structure 31, the first concave-convex structure 21 arranged at one end of the outer rib 2 is in concave-convex fit with the second concave-convex structure 31 arranged at one end of the outer rib extension strip 3, and the first concave-convex structure 21 arranged at the other end of the outer rib 2 is in concave-convex fit with the second concave-convex structure 31 arranged at the other end of the outer rib extension strip 3. So as to ensure the connection stability of the outer convex rib 2 and the outer convex rib extension strip 3 and prevent the falling or flanging and other conditions.
In order to enhance the connection stability between the external protrusion rib 2 and the external protrusion rib extension strip 3, as shown in fig. 1 to 6, the first concave-convex structure 21 includes a notch 211 disposed at a corresponding end of the external protrusion rib 2, and the second concave-convex structure 31 includes external protrusion buckles 311 disposed at a corresponding end of the external protrusion rib extension strip 3, and one of the external protrusion buckles 311 is buckled in one of the notches 211. When the male buckles 311 at the corresponding ends of the male rib extension strips 3 are respectively buckled at the notches 211 at the corresponding ends of the male ribs 2, the male ribs 2 and the male rib extension strips 3 are connected in place.
Specifically, in this embodiment, the notch 211 is disposed on the back side of the corresponding end portion of the male rib 2, and the male buckle 311 extends outward along the length direction of the male rib extension strip 3. So as to increase the contact area of the two and improve the connection fixing effect.
In order to realize placement and fixation of mesh cloth, as shown in fig. 1, 2, 3, 5 and 6, the back side surface of the outer convex rib 2 and the back side surface of the outer convex rib extension strip 3 form a first annular cloth fixing surface 4, the outer peripheral surface of the annular frame body 1 is provided with a second annular cloth fixing surface 5 positioned at the back side of the first annular cloth fixing surface 4, and the first annular cloth fixing surface 4 and the second annular cloth fixing surface 5 form an annular mesh cloth groove 6. The mesh cloth is well arranged on the annular frame body 1 through the annular mesh cloth groove 6.
In order to realize the overall connectivity of the chair backrest frame, the convex rib extension strip 3 is sleeved and connected with the lower side edge of the annular frame body 1 as shown in fig. 1, 2, 3 and 5.
To reinforce the connection of the annular frame body 1 and the outer rib extension strip 3, as shown in fig. 1 to 6, a positioning groove 11 with a notch facing the outer rib extension strip 3 is provided at the lower side of the annular frame body 1, and an annular portion 32 inserted into the positioning groove 11 and matched with the positioning groove 11 is provided at the back surface of the outer rib extension strip 3 in the thickness direction.
In order to realize the fixed adjustment of the annular frame body 1 and the outer convex rib extension strip 3, specifically, in the embodiment, the bottom of the positioning groove 11 is provided with a plurality of butt posts 111 with threaded holes, the back of the outer convex rib extension strip 3 is provided with a plurality of sleeve rings 33 which are in one-to-one sleeve connection with the butt posts 111, and the outer convex rib extension strip 3 is provided with a fastener 7 penetrating through the sleeve rings 33 and in threaded connection with the threaded holes.
To achieve connection of both the socket ring 33 and the annular portion 32, as shown in fig. 5, the circumferential surface of the socket ring 33 is connected to the inner walls of two opposite sides of the annular portion 32.
The chair leaning frame has solved the circumstances such as have the turn-ups, avoid the mesh cloth whole fixed weak and the mesh cloth lax that the junction unevenness leads to, through linking the evagination muscle extension strip at evagination muscle both ends on annular framework to set up first concave-convex structure at evagination muscle both ends, evagination muscle extension strip both ends set up the unsmooth cooperation of the unsmooth knot of corresponding tip breach of first unsmooth structure and the corresponding end evagination of second, evagination muscle extension strip dorsal surface forms first annular cloth fixed surface, annular framework outer peripheral face is equipped with the fixed surface of second annular cloth, first annular cloth fixed surface and the fixed surface of second annular cloth form annular mesh cloth groove.
Example two
The structure and principle of this embodiment are basically the same as those of the first embodiment, and the different structures are as follows: as shown in fig. 1 to 6, the first concave-convex structure 21 includes a convex buckle 311 disposed at a corresponding end of the convex rib 2, and the second concave-convex structure 31 includes a notch 211 disposed at a corresponding end of the convex rib extension strip 3, and one convex buckle 311 is buckled in one notch 211.
Example III
As shown in fig. 1 to 6, the chair includes the seat frame of the first and second embodiments.
Design principle:
through linking the evagination muscle extension strip 3 at evagination muscle 2 both ends on annular framework 1 to set up first unsmooth structure 21 at evagination muscle 2 both ends, evagination muscle extension strip 3 both ends set up second unsmooth structure 31, realize evagination muscle 2 and evagination muscle extension strip 3's connection, the unsmooth cooperation of corresponding tip breach 211 of first unsmooth structure 21 and the corresponding end evagination knot 311 of second unsmooth structure 31, the stability of strengthening evagination muscle 2 and evagination muscle extension strip 3's connection, evagination muscle extension strip 3 dorsal surface forms first annular cloth fixed surface 4, annular framework 1 outer peripheral face is equipped with second annular cloth fixed surface 5, first annular cloth fixed surface 4 and second annular cloth fixed surface 5 form annular mesh groove 6 and realize placing and fixing of screen cloth.
Although terms such as the annular frame body 1, the positioning groove 11, the docking post 111, the male rib 2, the first concave-convex structure 21, the notch 211, the male rib extension bar 3, the second concave-convex structure 31, the male buckle 311, the annular portion 32, the socket ring 33, the first annular cloth fixing surface 4, the second annular cloth fixing surface 5, the annular mesh slot 6, the fastener 7, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Claims (10)
1. The utility model provides a chair frame, includes annular framework (1) be equipped with on annular framework (1) along outer convex rib (2) that annular framework (1) circumference set up, its characterized in that, chair frame still includes fix on annular framework (1) and link up in outer convex rib extension strip (3) at outer convex rib (2) both ends, outer convex rib (2) with outer convex rib extension strip (3) form the annular convex rib that supplies back cloth cladding.
2. The chair backrest frame according to claim 1, characterized in that the two ends of the outer convex rib (2) are respectively provided with a first concave-convex structure (21), the two ends of the outer convex rib extension strip (3) are respectively provided with a second concave-convex structure (31), the first concave-convex structure (21) arranged at one end of the outer convex rib (2) is matched with the second concave-convex structure (31) arranged at one end of the outer convex rib extension strip (3), and the first concave-convex structure (21) arranged at the other end of the outer convex rib (2) is matched with the second concave-convex structure (31) arranged at the other end of the outer convex rib extension strip (3) in a concave-convex mode.
3. The chair frame according to claim 2, characterized in that the first relief structure (21) comprises notches (211) provided at the respective ends of the male ribs (2), the second relief structure (31) comprises male buckles (311) provided at the respective ends of the male rib extension strips (3), one of the male buckles (311) being snapped into one of the notches (211).
4. A chair frame according to claim 3, characterized in that the indentations (211) are provided on the back side of the respective ends of the male ribs (2), the male buckles (311) being elongated outwardly along the length of the male rib extension strips (3).
5. The chair backrest frame according to claim 1, characterized in that the back side surface of the outer convex rib (2) and the back side surface of the outer convex rib extension strip (3) form a first annular cloth fixing surface (4), a second annular cloth fixing surface (5) positioned at the back side of the first annular cloth fixing surface (4) is arranged on the outer peripheral surface of the annular frame body (1), and the first annular cloth fixing surface (4) and the second annular cloth fixing surface (5) form an annular mesh groove (6).
6. The chair backrest frame according to claim 1, characterized in that the protruding rib extension strip (3) is connected with the lower side edge of the annular frame body (1) in a sleeved mode.
7. The chair backrest frame according to claim 6, characterized in that a positioning groove (11) with a notch facing the outer convex rib extension (3) is provided at the lower side of the annular frame body (1), and an annular portion (32) inserted into the positioning groove (11) and matched with the positioning groove (11) is provided at the back of the outer convex rib extension (3) in the thickness direction.
8. The chair backrest frame according to claim 7, characterized in that a plurality of butt joint posts (111) with threaded holes are arranged at the bottom of the positioning groove (11), a plurality of sleeve joint rings (33) which are in one-to-one joint with the butt joint posts (111) are arranged on the back surface of the outer convex rib extension strip (3), and a fastener (7) penetrating through the sleeve joint rings (33) and in threaded connection with the threaded holes is arranged on the outer convex rib extension strip (3).
9. The chair frame according to claim 8, characterized in that the peripheral surface of said socket ring (33) is connected to the inner walls of two opposite sides of said annular portion (32).
10. A chair comprising a chair frame according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321504252.9U CN220275251U (en) | 2023-06-13 | 2023-06-13 | Chair backrest frame and chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321504252.9U CN220275251U (en) | 2023-06-13 | 2023-06-13 | Chair backrest frame and chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220275251U true CN220275251U (en) | 2024-01-02 |
Family
ID=89325867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321504252.9U Active CN220275251U (en) | 2023-06-13 | 2023-06-13 | Chair backrest frame and chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220275251U (en) |
-
2023
- 2023-06-13 CN CN202321504252.9U patent/CN220275251U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |