CN219813625U - Chair back frame structure - Google Patents
Chair back frame structure Download PDFInfo
- Publication number
- CN219813625U CN219813625U CN202320160165.XU CN202320160165U CN219813625U CN 219813625 U CN219813625 U CN 219813625U CN 202320160165 U CN202320160165 U CN 202320160165U CN 219813625 U CN219813625 U CN 219813625U
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- Prior art keywords
- plate
- link
- fixedly connected
- connecting plate
- headrest
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- 239000000463 material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000005489 elastic deformation Effects 0.000 description 7
- 239000013013 elastic material Substances 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model discloses a chair back frame structure, which relates to the technical field of chairs and comprises a headrest supporting plate, wherein first connecting plates are fixedly connected to two sides of the headrest supporting plate, headrest fixing plates are fixedly connected to the rear sides of the first connecting plates, connecting frames are arranged below the first connecting plates, the first connecting plates are connected with the connecting frames through hinge assemblies, waist fixing rods are fixedly connected to one sides, close to the two connecting frames, of the first connecting plates, second connecting plates are fixedly connected to the top ends of the front sides of the connecting frames, waist supporting plates are fixedly connected to the top ends of the second connecting plates, mounting holes are formed in the surfaces of the left side and the right side of the connecting frames, movable pieces are arranged at the bottoms of the connecting frames, cavities are formed in the movable pieces, and connecting pieces are movably connected to the interiors of the cavities. The chair back frame structure is simple to operate and effectively adjusts comfort level by utilizing the hinge assembly to connect and adjust the headrest and waist structure in the chair back frame.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to a chair back frame structure.
Background
Along with the improvement of the living standard and the quality of people, as a tool commonly used in life and work, people have higher and higher requirements on the comfort and durability of the seats and leaning back when in use, and the seats and the back made of the original hard materials cannot meet the daily requirements.
The existing chair back structure is generally flat up and down and basically positioned on the same plane, can not well support the human spine, is easy to cause oppression to a user, is incorrect in sitting posture, is low in comfort and is poor in experience.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a chair back frame structure, which solves the problems that the existing chair back frame structure proposed in the background art is generally flat and basically on the same plane, cannot support the human spine well, is easy to cause oppression to a user, is incorrect in sitting posture, is low in comfort and is poor in experience.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides a back of chair frame structure, includes the headrest backup pad, the equal fixedly connected with first connecting plate in headrest backup pad both sides, first connecting plate rear side fixedly connected with headrest fixed plate, every the below of first connecting plate all is provided with the link, and first connecting plate is connected with the link through articulated elements, two the one side fixedly connected with waist dead lever that the link is close to mutually, link front side top fixedly connected with second connecting plate, second connecting plate top fixedly connected with waist backup pad, the mounting hole has all been seted up on link left and right sides surface, the link bottom is provided with the moving part, the cavity has been seted up inside to the moving part, cavity inside swing joint has the connecting piece, equal threaded connection has stop screw on moving part and the connecting part, stop screw runs through the mounting hole and extends to the link inboard, stop screw extends to the inboard one end threaded connection of link has the nut.
Further, the hinge assembly comprises an upper link plate and a lower link plate, the upper link plate and the lower link plate are all arranged to be hinge plates formed by bending, a containing space is formed at the bottom of the upper link plate and the top end of the lower link plate, and a first hinge block, a mounting plate and a second hinge block are arranged in the containing space.
Further, two first through holes are formed in the upper link plate and the lower link plate, the second through holes are formed in the first link plate, the second through holes are equal to the first through holes of the upper link plate in diameter, the number of the mounting holes is four, the four mounting holes are formed in the connecting frame at equal intervals, and the positions of the mounting holes are equal to the first through holes of the lower link plate in diameter.
Further, the first connecting plate is fixedly connected with the upper connecting plate through the second fixing block, the connecting frame is fixedly connected with the lower connecting plate through the first fixing block, the headrest support plate and the waist support plate are made of elastic materials, and the headrest support plate and the waist support plate are all arranged into an arc shape.
Further, the center positions of the first hinge block, the mounting plate and the second hinge block are provided with through grooves, and the through grooves are matched with the rivets.
Further, the first hinge block is provided with two positioning tooth grooves, the two positioning tooth grooves are symmetrically arranged, a plurality of locking teeth are fixedly connected to one side surface, close to the two positioning tooth grooves, of each locking tooth, and a 5-gear rotation interval is formed by winding the through groove angle.
Further, the mounting plate is internally provided with a locking groove and a clamp spring, the second hinge block is fixedly connected with a locking plate, the size of the locking plate is matched with the locking groove and the positioning tooth slot, and the locking plate penetrates through the locking groove and extends to the inside of the positioning tooth slot.
(III) beneficial effects
The utility model provides a chair back frame structure, which has the following beneficial effects:
(1) This back of chair frame structure connects and adjusts headrest and waist structure in the back of the chair frame through utilizing articulated elements, easy operation and effectively adjusted the comfort level, can adjust according to people's demand that does not lead to through the setting of lock tooth, effectually improved application range, make headrest backup pad and waist backup pad elastic deformation formation dodge interval through the connecting plate, can support the human backbone of user who does not use, improved the comfort level.
(2) This back of chair frame structure, through setting up moving part and connecting piece and can fix the link, also made things convenient for the connection to follow-up seat, easy operation utilizes the cooperation of jump ring and locking plate, locked groove, simple structure easy operation, through setting up headrest backup pad and waist backup pad to the arc, the support piece can disperse in whole backup pad with the power that receives when the atress produces elastic deformation, makes support piece's life lengthen like this to it is not fragile to obtain the pressure effect.
Drawings
FIG. 1 is a schematic perspective view of a chair back frame structure of the present utility model;
FIG. 2 is a schematic rear view of the chair back frame structure of the present utility model;
FIG. 3 is a schematic left-hand view of the chair back frame structure of the present utility model;
FIG. 4 is an enlarged schematic view of the chair back frame structure of the present utility model at A in FIG. 1;
fig. 5 is an exploded view showing a partial structure of the back frame structure of the present utility model.
In the figure: 1. a headrest support plate; 2. a first connection plate; 3. a headrest fixing plate; 4. a hinge assembly; 5. a connecting frame; 6. a second connecting plate; 7. a lumbar support plate; 8. a mounting hole; 9. a first fixed block; 10. a movable member; 11. a connecting piece; 12. a limit screw; 13. a nut; 14. a second fixed block; 15. a waist fixing rod; 16. an upper link plate; 17. a lower link plate; 18. a rivet; 19. a first hinge block; 20. a mounting plate; 21. a second hinge block; 22. a locking plate; 23. a locking groove; 24. clamping springs; 25. positioning tooth grooves; 26. locking teeth.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected or detachably connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-5, the present utility model provides a technical solution:
the utility model provides a back of chair frame structure, including headrest backup pad 1, headrest backup pad 1 both sides all fixedly connected with first connecting plate 2, first connecting plate 2 rear side fixedly connected with headrest fixed plate 3, be formed with the avoidance interval that is used for headrest backup pad 1 elastic deformation between headrest backup pad 1 and the headrest fixed plate 3, the below of every first connecting plate 2 all is provided with link 5, and first connecting plate 2 is connected with link 5 through hinge assembly 4, through utilizing hinge assembly 4 to connect and adjust headrest and waist structure in the back of the chair frame, easy operation and effective comfort level have been adjusted, can adjust according to people's obstructed demand through the setting of lock tooth 26, the effectual application range that has improved, avoid interval that makes headrest backup pad 1 and waist backup pad 7 elastic deformation through the connecting plate forms, can support the human backbone of the user who does not use, the comfort level has been improved;
the hinge assembly 4 comprises an upper link plate 16 and a lower link plate 17, the upper link plate 16 and the lower link plate 17 are respectively provided with a hinge plate formed by bending, the bottom of the upper link plate 16 and the top end of the lower link plate 17 form a containing space, a first hinge block 19, a mounting plate 20 and a second hinge 21 are arranged in the containing space, through grooves are respectively formed in the central positions of the first hinge block 19, the mounting plate 20 and the second hinge block 21, the through grooves are matched with the rivets 18, the first hinge block 19 is provided with two positioning tooth grooves 25, the two positioning tooth grooves 25 are symmetrically arranged, one side surface, close to the two positioning tooth grooves 25, of each positioning tooth groove 25 is fixedly connected with a plurality of locking teeth 26, the locking teeth 26 form a 5-gear rotating section around the through groove angle, a locking groove 23 and a clamp spring 24 are arranged in the mounting plate 20, the second hinge block 21 is fixedly connected with a locking plate 22, the size of the locking plate 22 is matched with the locking groove 23 and the positioning tooth grooves 25, the locking plate 22 penetrates through the locking groove 23 and extends to the inside of the positioning tooth groove 25, two first through holes are formed in the upper connecting plate 16 and the lower connecting plate 17, the first connecting plate 2 is provided with a second through hole, the second through hole is equal to the first through hole of the upper connecting plate 16 in diameter, the number of the mounting holes 8 is four, the four mounting holes 8 are equidistantly formed in the connecting frame 5, the positions of the mounting holes 8 are equal to the first through hole of the lower connecting plate 17 in diameter, one surface, close to the two connecting frames 5, of the connecting frame 5 is fixedly connected with the waist fixing rod 15, the top end of the front side of the connecting frame 5 is fixedly connected with the second connecting plate 6, the top end of the second connecting plate 6 is fixedly connected with the waist supporting plate 7, an avoidance interval for elastic deformation of the waist supporting plate 7 is formed between the waist supporting plate 7 and the waist fixing rod 15, the first connecting plate 2 is fixedly connected with the upper connecting plate 16 through the second fixing block 14, the link 5 is through first fixed block 9 and link 17 fixed connection down, headrest backup pad 1 and waist backup pad 7 are made by elastic material's material, headrest backup pad 1 and waist backup pad 7 all set up to the arc, mounting hole 8 has all been seted up on the link 5 left and right sides surface, the link 5 bottom is provided with moving part 10, the cavity has been seted up to moving part 10 inside, the inside swing joint of cavity has connecting piece 11, equal threaded connection has stop screw 12 on moving part 10 and the connecting piece 11, stop screw 12 runs through mounting hole 8 and extends to the link 5 inboard, stop screw 12 extends to the inboard one end threaded connection of link 5 has nut 13, through setting up moving part 10 and connecting piece 11 can be fixed the link 5, easy operation has also made things convenient for the connection to follow-up seat, utilize jump ring 24 and locking plate 22, the cooperation of locked groove 23, simple structure easy operation, through setting up headrest backup pad 1 and waist backup pad 7 as the arc, the support can disperse the whole backup pad on with the effort that receives when the atress produces elastic deformation, make support's life like this, and obtain fragile pressure when not getting.
The utility model provides a principle of operation, this back of chair frame structure, including headrest backup pad 1 and waist backup pad 7, the connecting piece 11 roll-off with moving part 10 inside is connected with the cushion during the use, because headrest backup pad 1 and waist backup pad 7 are all made by elastic material when leaning on, can support and support the support to health head and waist in dodging the space inside according to human angle and dynamics of leaning on, select comfortable angle, utilize the cooperation of first hinge block 19, mounting panel 20 and second hinge block 21 to carry out the adjustment of angle to headrest backup pad 1 under the different service conditions and close fixedly, when the user uses, utilize the dodging space that waist backup pad 7 and waist dead lever 15 produced, waist backup pad 7 produces backward movement's trend because of the atress, waist backup pad 7 atress produces elastic deformation, because the backup pad is arc support, the force that the support received disperses in whole backup pad, so make support's life lengthens, and when obtaining the pressure, fragile, headrest backup pad 1 and waist backup pad 7 reset under support elastic action.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a chair back frame structure, includes headrest backup pad (1), its characterized in that, headrest backup pad (1) both sides all fixedly connected with first connecting plate (2), first connecting plate (2) rear side fixedly connected with headrest fixed plate (3), every first connecting plate (2) below all is provided with link (5), and first connecting plate (2) are connected with link (5) through hinge assembly (4), two one side fixedly connected with waist dead lever (15) that link (5) are close to mutually, link (5) front side top fixedly connected with second connecting plate (6), second connecting plate (6) top fixedly connected with waist backup pad (7), mounting hole (8) have all been seted up on link (5) left and right sides surface, link (5) bottom is provided with moving part (10), cavity inside swing joint has link (11) in moving part (10) and link (11), all be connected with screw (12) on moving part (11) and link (12) and spacing screw (8) extend to inboard screw (5), one end of the limit screw (12) extending to the inner side of the connecting frame (5) is connected with a nut (13) in a threaded manner.
2. A chair back frame structure according to claim 1, wherein,
the hinge assembly (4) comprises an upper link plate (16) and a lower link plate (17), the upper link plate (16) and the lower link plate (17) are all arranged to be hinge plates formed by bending, a containing space is formed at the bottom of the upper link plate (16) and the top end of the lower link plate (17), and a first hinge block (19), a mounting plate (20) and a second hinge block (21) are arranged in the containing space.
3. A chair back frame structure according to claim 2, wherein,
two first through holes are formed in the upper connecting plate (16) and the lower connecting plate (17), second through holes are formed in the first connecting plate (2), the diameters of the second through holes are equal to those of the first through holes of the upper connecting plate (16), the number of the mounting holes (8) is four, the mounting holes (8) are formed in the connecting frame (5) at equal intervals, and the positions of the mounting holes (8) are equal to those of the first through holes of the lower connecting plate (17).
4. A chair back frame structure according to claim 3, wherein,
the utility model discloses a headrest support plate, including headrest support plate (1), waist support plate (7), first connecting plate (2) are through second fixed block (14) and last link plate (16) fixed connection, link (5) are through first fixed block (9) and lower link plate (17) fixed connection, headrest support plate (1) and waist support plate (7) are made by the material of elasticity material, headrest support plate (1) and waist support plate (7) all set up to the arc.
5. A chair back frame structure according to claim 4, wherein,
the center positions of the first hinge block (19), the mounting plate (20) and the second hinge block (21) are provided with through grooves which are matched with the rivets (18).
6. A chair back frame structure according to claim 5, wherein,
the first hinge block (19) is provided with two positioning tooth grooves (25), two positioning tooth grooves (25) are symmetrically arranged, one side surface, close to the positioning tooth grooves (25), of each positioning tooth groove is fixedly connected with a plurality of locking teeth (26), and the locking teeth (26) form a 5-gear rotation interval around a through groove angle.
7. A chair back frame structure according to claim 6, wherein,
the mounting plate (20) is internally provided with a locking groove (23) and a clamp spring (24), the second hinge block (21) is fixedly connected with a locking plate (22), the locking plate (22) is matched with the locking groove (23) and the positioning tooth groove (25), and the locking plate (22) penetrates through the locking groove (23) and extends into the positioning tooth groove (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320160165.XU CN219813625U (en) | 2023-02-09 | 2023-02-09 | Chair back frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320160165.XU CN219813625U (en) | 2023-02-09 | 2023-02-09 | Chair back frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219813625U true CN219813625U (en) | 2023-10-13 |
Family
ID=88250860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320160165.XU Active CN219813625U (en) | 2023-02-09 | 2023-02-09 | Chair back frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219813625U (en) |
-
2023
- 2023-02-09 CN CN202320160165.XU patent/CN219813625U/en active Active
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| GR01 | Patent grant |