CN216797069U

CN216797069U - Self-adaptive chair back backup plate structure

Info

Publication number: CN216797069U
Application number: CN202122177430.9U
Authority: CN
Inventors: 胡军; 王冠; 张伟锋; 周金坤
Original assignee: Global Furniture Zhejiang Co Ltd
Current assignee: Global Furniture Zhejiang Co Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-06-24
Anticipated expiration: 2031-09-09

Abstract

The utility model relates to the technical field of chairs and discloses a self-adaptive chair back backup plate structure which comprises a chair and a chair back support rod integrally formed with the chair, and further comprises a backup plate, a sliding adjusting assembly fixedly arranged on the back surface of the backup plate and an angle adjusting assembly fixedly arranged on the back surface of the backup plate, wherein the angle adjusting assembly is positioned on the lower side of the sliding adjusting assembly, and the other ends of the sliding adjusting assembly and the angle adjusting assembly are fixedly connected to the chair back support rod. According to the utility model, through the bidirectional hinge of the rotating accessory and the torsion spring which is embedded in the third bolt rod, the angle adjusting component has the functions of rotating the backup plate around the hinge rod and moving up and down, and meanwhile, the backup plate can move up and down relative to the chair back support rod by matching with the oblique sliding along the track of the sliding hole, and angle compensation can be carried out under the revolving hinge action of the rotating component.

Description

Self-adaptive chair back backup plate structure

Technical Field

The utility model relates to the technical field of chairs, in particular to a self-adaptive chair back backup plate structure.

Background

In the prior art, the waist rest and the backrest of the chair are either fixed, non-adjustable and adjustable, so that the angle and the up-down position of the chair need to be manually adjusted to reach the position suitable for the back posture, there are still many problems, such as the back of the user being moved away from the lumbar support during adjustment of the existing lumbar support, therefore, the user can only adjust the reclining position repeatedly, which is inconvenient and often cannot adjust the reclining position to the most comfortable position, and the waist rest posture is fixed after adjustment and can not change along with the change of the sitting posture of the user, which causes discomfort for long-time depending, moreover, the existing waist rest adjustment changes the posture by rotating the hinge angle of the waist rest and the cushion, and when the adjustment range is large, the user is inconvenient to use because the user must lie down, the fixed and non-adjustable lumbar support obviously cannot meet the existing requirements, and the lumbar support structure is provided in view of the defects.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: to overcome the above-mentioned problems, an adaptive back plate structure for a chair is provided, which solves the above-mentioned problems.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

a self-adaptive chair back backup plate structure comprises a chair and a chair back support rod integrally formed with the chair, and further comprises a backup plate, a sliding adjusting assembly fixedly arranged on the back surface of the backup plate, and an angle adjusting assembly fixedly arranged on the back surface of the backup plate, wherein the angle adjusting assembly is positioned at the lower side of the sliding adjusting assembly, and the other ends of the sliding adjusting assembly and the angle adjusting assembly are fixedly connected to the chair back support rod;

the sliding adjusting assembly comprises a fixed plate assembly fixedly connected to the back surface of the backup plate and an oblique sliding assembly with a strip-shaped sliding groove, the oblique sliding assembly is hinged to the fixed plate assembly through the strip-shaped sliding groove, and one end surface, far away from the backup plate, of the oblique sliding assembly is fixedly connected to the chair back supporting rod;

the angle adjusting assembly comprises a fixed plate assembly, a rotating assembly and an elastic supporting assembly, wherein one end of the rotating assembly is hinged to the fixed plate assembly, the other end of the rotating assembly is hinged to the elastic supporting assembly, the elastic supporting assembly is hinged to the rotating assembly, an elastic piece is arranged at the hinged position of the rotating assembly, two ends of the elastic piece are respectively abutted to the rotating assembly and pressed against one end face of the backup plate, the elastic supporting assembly is far away from one end face of the backup plate, and the other end of the elastic supporting assembly is fixedly connected to the backup plate supporting rod.

Preferably, the solid board subassembly includes integrated into one piece's stereoplasm connecting piece, the last connecting piece fixed thread hole that is equipped with longitudinal symmetry arrangement of stereoplasm connecting piece, bilateral symmetry is equipped with the connecting piece hinge hole on the stereoplasm connecting piece, the axis of connecting piece fixed thread hole with the axis of connecting piece hinge hole is perpendicular, the stereoplasm connecting piece through with connecting piece fixed thread hole threaded connection's screw with the backup plate rigid coupling, the slant slip subassembly is including the slider that is concave word form, the slider is close to a terminal surface parallel rigid coupling of back of the chair bracing piece in on the back of the chair bracing piece, another terminal surface of slider is the inclined plane, just be close to on the slider the one end bilateral symmetry of backup plate is equipped with the sliding hole that runs through, the sliding hole with it is equipped with the iron set to articulate between the connecting piece hinge hole.

Preferably, the runner assembly includes swivel fitting, swivel fitting's both ends all are equipped with bilateral symmetry's flange, be equipped with the first hinge hole that runs through on the flange of swivel fitting one end, swivel fitting's other end flange is equipped with the second hinge hole that runs through, the elastic support subassembly includes the mounting, the one end of mounting is equipped with bilateral symmetry's flange, flange on the mounting be equipped with second hinge hole constant diameter and coaxial fit's through-hole, first hinge hole with it is equipped with No. three shank of bolt to articulate between the connecting piece hinge hole, the second hinge hole with it is equipped with No. three shank of bolt to articulate between the mounting, articulated setting on the mounting rotate on No. three shank of bolt and be equipped with the torsional spring, the both ends of torsional spring respectively with swivel fitting, mounting offset.

Preferably, the third bolt rod is sleeved with a second anti-moving part, two ends of the second anti-moving part are respectively abutted to the inner side wall of the rotating part, the iron rod is sleeved with a first anti-moving part, and two ends of the first anti-moving part are abutted to the inner side wall of the sliding block.

Preferably, be close to on the slider screw rigid coupling is equipped with the iron sheet No. one on the terminal surface of back of the chair bracing piece, the terminal surface of iron sheet No. one is greater than the plane of slider, be close to on the mounting screw rigid coupling is equipped with the iron sheet No. two on the terminal surface of back of the chair bracing piece, the terminal surface of iron sheet No. two is greater than the plane of mounting.

The utility model has the advantages and positive effects that: the angle adjusting assembly has the functions of rotating the backup plate around the hinge rod and moving up and down through the bidirectional hinge of the rotating accessory and the torsion spring embedded in the third bolt rod, and meanwhile, the backup plate can move up and down relative to the chair back support rod by matching with the torsion spring sliding along the track of the sliding hole in an inclined manner, and angle compensation can be performed under the rotating hinge action of the rotating assembly;

in addition, the connection and offset area of the sliding adjusting assembly, the angle adjusting assembly and the chair back supporting rod is increased by additionally arranging the first iron sheet and the second iron sheet, and the stress area is increased while the connection is convenient so that the connection part is more stable.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an assembly view of the backup plate, the sliding adjustment assembly, and the angle adjustment assembly of the present invention;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 2;

FIG. 4 is a schematic view of the full section configuration of the present invention;

fig. 5 is a schematic diagram of an explosive structure of the present invention.

The scores in the figures are as follows: 1. a hard connector; 2. a slider; 5. a first anti-back fitting; 6. a first iron sheet; 7. an iron rod; 8. a second anti-back accessory; 9. a third bolt shank; 10. a second iron sheet; 11. a fixing member; 15. a torsion spring; 16. a rotating fitting; 17. a backup plate; 18. a slide hole; 19. a first hinge hole; 20. a second hinge hole; 21. the connecting piece fixes the threaded hole; 22. a connector hinge hole; 23. a slide adjustment assembly; 24. an angle adjustment assembly; 25. fixing the plate assembly; 26. a diagonal sliding assembly; 27. a rotating assembly; 28. a chair; 29. a chair back support bar; 30. an elastic support assembly.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The embodiments of the utility model will be described in further detail below with reference to the accompanying drawings:

as shown in fig. 1 to 4, the adaptive chair back rest plate structure of the present invention includes a chair 28 and a chair back support rod 29 integrally formed with the chair 28, and further includes a rest plate 17, a sliding adjustment assembly 23 fixedly disposed on the back of the rest plate 17, and an angle adjustment assembly 24 fixedly disposed on the back of the rest plate 17, wherein the angle adjustment assembly 24 is located at the lower side of the sliding adjustment assembly 23, and the other ends of the sliding adjustment assembly 23 and the angle adjustment assembly 24 are fixedly connected to the chair back support rod 29;

the sliding adjusting assembly 23 comprises a fixed plate assembly 25 fixedly connected to the back surface of the backup plate 17 and an oblique sliding assembly 26 with a strip-shaped sliding groove, the oblique sliding assembly 26 is hinged to the fixed plate assembly 25 through the strip-shaped sliding groove, and one end surface, far away from the backup plate 17, of the oblique sliding assembly 26 is fixedly connected to the chair back supporting rod 29;

the angle adjusting assembly 24 comprises a plate fixing assembly 25, a rotating assembly 27 and an elastic supporting assembly 30, one end of the rotating assembly 27 is hinged to the plate fixing assembly 25, the other end of the rotating assembly 27 is hinged to the elastic supporting assembly 30, an elastic piece is arranged at the hinged position of the elastic supporting assembly 30 and the rotating assembly 27, two ends of the elastic piece are respectively abutted against one end face of the rotating assembly 27 far away from the backup plate 17 and one end face of the elastic supporting assembly 30 far away from the backup plate 17, and the other end of the elastic supporting assembly 30 is fixedly connected to the backrest supporting rod 29;

it should be understood that the acting force generated by the two acting points of the elastic member should make the angle formed by the rotating assembly 27 and the elastic supporting assembly 30 near the side of the backrest support bar 29 tend to expand, and under the condition of no external force, the elastic member expands the angle, and at the same time, the backup plate 17 is lifted upwards under the action of the lever, so that the hinge joint of the fixing plate assembly 25 and the oblique sliding assembly 26 in the sliding adjusting assembly 23 is at the uppermost end of the strip-shaped sliding groove on the oblique sliding assembly 26.

Preferably, the plate fixing component 25 comprises an integrally formed hard connecting piece 1, connecting piece fixing threaded holes 21 which are symmetrically arranged up and down are arranged on the hard connecting piece 1, the hard connecting piece 1 is symmetrically provided with connecting piece hinge holes 22 at left and right, the axis of the connecting piece fixing threaded hole 21 is vertical to the axis of the connecting piece hinge hole 22, the hard connecting piece 1 is fixedly connected with the backup plate 17 through a screw in threaded connection with the connecting piece fixing threaded hole 21, the slant sliding component 26 comprises a concave slider 2, one end surface of the slider 2 close to the chair back support bar 29 is fixedly connected to the chair back support bar 29 in parallel, the other end surface of the slider 2 is an inclined surface, and one end of the sliding block 2 close to the backup plate 17 is symmetrically provided with penetrating sliding holes 18 in a left-right mode, and an iron rod 7 is hinged between the sliding holes 18 and the connecting piece hinge hole 22.

Preferably, the rotating assembly 27 comprises a rotating part 16, both ends of the rotating part 16 are provided with flanges of bilateral symmetry, a first hinge hole 19 penetrating through the flange of one end of the rotating part 16 is arranged on the flange of one end of the rotating part 16, a second hinge hole 20 penetrating through the flange of the other end of the rotating part 16 is arranged on the flange of the other end of the rotating part 16, the elastic support assembly 30 comprises a fixing part 11, one end of the fixing part 11 is provided with a flange of bilateral symmetry, the flange on the fixing part 11 is provided with a through hole which is equal in diameter and coaxially matched with the second hinge hole 20, the first hinge hole 19 is hinged with a third bolt rod 9 arranged between the hinge holes 22 of the connecting part, the second hinge hole 20 is hinged with a third bolt rod 9 arranged between the fixing part 11, a torsion spring 15 is arranged on the third bolt rod 9 in a hinged mode, and two action ends of the torsion spring 15 are respectively connected with the rotating part 16, The fixing pieces 11 are abutted.

Preferably, the third bolt rod 9 is sleeved with a second anti-moving part 8, two ends of the second anti-moving part 8 are respectively abutted to the inner side wall of the rotating part 16, the iron rod 7 is sleeved with a first anti-moving part 5, and two ends of the first anti-moving part 5 are abutted to the inner side wall of the sliding block 2.

Preferably, a first iron sheet 6 is fixedly connected to the end surface, close to the seat back support rod 29, of the slide block 2 through screws, the end surface of the first iron sheet 6 is larger than the plane of the slide block 2, a second iron sheet 10 is fixedly connected to the end surface, close to the seat back support rod 29, of the fixing member 11 through screws, and the end surface of the second iron sheet 10 is larger than the plane of the fixing member 11;

the areas of the sliding adjusting assembly 23, the angle adjusting assembly 24 and the chair back supporting rod 29 which are connected and offset are increased by additionally arranging the first iron sheet 6 and the second iron sheet 10, and the stress area is increased while the connection is facilitated so that the connection is more stable.

In specific implementation, the hard connecting pieces 1 are fixed on the backup plate 17 through screws in threaded connection with the connecting piece fixing threaded holes 21, two hard connecting pieces 1 are vertically and vertically arranged at intervals on the back of the backup plate 17, the slider 2 is sleeved on the hard connecting piece 1 on the upper side, the iron rod 7 penetrates through the connecting piece hinge hole 22 and the sliding hole 18 to enable the hard connecting piece 1 and the slider 2 to form a hinged relation capable of sliding along the stroke of the sliding hole 18, the first iron sheet 6 is fixedly arranged on the other end face of the slider 2, the first iron sheet 6 is fixed on the chair back supporting rod 29 through connecting fasteners such as screws, the third bolt rod 9 penetrates through the connecting piece hinge hole 22 and the first hinge hole 19 on the lower side hard connecting piece 1 to enable one end of the rotating fitting 16 to be hinged with the hard connecting piece 1, and the third bolt rod 9 penetrates through the second hinge hole 20 and the fixing piece 11, The torsion spring 15 enables the fixing piece 11 to be hinged with the other end of the rotating accessory 16, the torsion spring 15 is sleeved on the third bolt rod 9, two action ends of the torsion spring 15 respectively act on the rotating accessory 16 and the fixing piece 11, then the second iron sheet 10 is fixed on the plane of the fixing piece 11 close to the chair back support rod 29, and finally the second iron sheet 10 is fixed on the chair back support rod 29.

It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but other embodiments derived from the technical solutions of the present invention by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides an adaptive back-rest plate structure, including chair (28) and with chair (28) integrated into one piece's back of the chair bracing piece (29), its characterized in that: the chair back support device comprises a backrest plate (17), a sliding adjusting assembly (23) fixedly arranged on the back of the backrest plate (17) and an angle adjusting assembly (24) fixedly arranged on the back of the backrest plate (17), wherein the angle adjusting assembly (24) is positioned on the lower side of the sliding adjusting assembly (23), and the other ends of the sliding adjusting assembly (23) and the angle adjusting assembly (24) are fixedly connected to a chair back support rod (29);

the sliding adjusting assembly (23) comprises a fixed plate assembly (25) fixedly connected to the back surface of the backup plate (17) and an oblique sliding assembly (26) with a strip-shaped sliding groove, the oblique sliding assembly (26) is hinged to the fixed plate assembly (25) through the strip-shaped sliding groove, and one end surface, far away from the backup plate (17), of the oblique sliding assembly (26) is fixedly connected to the chair back supporting rod (29);

angle adjusting part (24) include gu board subassembly (25), runner assembly (27), elastic support subassembly (30), the one end of runner assembly (27) with gu board subassembly (25) is articulated, the other end of runner assembly (27) with elastic support subassembly (30) are articulated, just elastic support subassembly (30) with the articulated department of runner assembly (27) is equipped with the elastic component, the both ends of elastic component support respectively and press and are in runner assembly (27) are kept away from a terminal surface of backup plate (17) elastic support subassembly (30) are kept away from on a terminal surface of backup plate (17), the other end fixed connection of elastic support subassembly (30) in on back of the chair bracing piece (29).

2. An adaptive chair back rest plate structure according to claim 1, wherein: the solid plate component (25) comprises an integrally formed hard connecting piece (1), wherein the hard connecting piece (1) is provided with connecting piece fixing threaded holes (21) which are symmetrically arranged from top to bottom, the hard connecting piece (1) is provided with connecting piece hinge holes (22) from top to bottom, the axis of each connecting piece fixing threaded hole (21) is perpendicular to the axis of each connecting piece hinge hole (22), the hard connecting piece (1) is fixedly connected with the backrest plate (17) through screws in threaded connection with the connecting piece fixing threaded holes (21), the oblique sliding component (26) comprises a concave-shaped sliding block (2), the sliding block (2) is close to one end face of the backrest support rod (29) and fixedly connected to the backrest support rod (29) in parallel, the other end face of the sliding block (2) is an inclined face, and the sliding hole (18) which penetrates through is symmetrically arranged from top to bottom to top to bottom on the sliding block (2), an iron rod (7) is hinged between the sliding hole (18) and the connecting piece hinge hole (22).

3. An adaptive chair back rest plate structure according to claim 2, wherein: the rotating assembly (27) comprises a rotating accessory (16), flanges of bilateral symmetry are arranged at two ends of the rotating accessory (16), a first hinge hole (19) penetrating through the flange of one end of the rotating accessory (16), a second hinge hole (20) penetrating through the flange of the other end of the rotating accessory (16), the elastic support assembly (30) comprises a fixing piece (11), a flange of bilateral symmetry is arranged at one end of the fixing piece (11), a through hole which is in equal diameter and coaxial fit with the second hinge hole (20) is formed in the flange of the fixing piece (11), a third bolt rod (9) is hinged between the first hinge hole (19) and the connecting piece hinge hole (22), a third bolt rod (9) is hinged between the second hinge hole (20) and the fixing piece (11), and a torsion spring (15) is rotatably arranged on the third bolt rod (9) hinged on the fixing piece (11), two action ends of the torsion spring (15) are respectively abutted against the rotating accessory (16) and the fixing piece (11).

4. An adaptive chair back rest plate structure according to claim 3, wherein: the suit is equipped with No. two on No. three shank of bolt (9) and prevents moving back accessory (8) just No. two prevent moving back the both ends of accessory (8) respectively with the inside wall of rotating accessory (16) offsets, the suit is equipped with one on iron pole (7) and prevents moving back accessory (5) just the both ends of one prevent moving back accessory (5) with the inside wall of slider (2) offsets.

5. An adaptive chair back rest plate structure according to claim 4, wherein: be close to on slider (2) screw rigid coupling is equipped with iron sheet (6) No. one on the terminal surface of back of the chair bracing piece (29), the terminal surface of iron sheet (6) is greater than the plane of slider (2), be close to on mounting (11) screw rigid coupling is equipped with iron sheet No. two (10) on the terminal surface of back of the chair bracing piece (29), the terminal surface of iron sheet No. two (10) is greater than the plane of mounting (11).