CN213128739U

CN213128739U - Chair backrest structure

Info

Publication number: CN213128739U
Application number: CN202022311078.9U
Authority: CN
Inventors: 陈敏
Original assignee: Shenyang Jindian Furniture Co ltd
Current assignee: Shenyang Jindian Furniture Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-05-07
Anticipated expiration: 2030-10-16

Abstract

The utility model relates to the technical field of living goods, in particular to a chair backrest structure, which can be adjusted to a comfortable sitting posture according to the back of a human body by arranging the device, improves the comfort level of a user, also improves the practicability of the user, and can be folded, thereby not only saving a large amount of space, but also being convenient to carry; including the fixed plate, four connecting seats of group, two sets of landing legs, two sets of fixed covers, two sets of slide bars, two sets of first pivots, a fixed base, the connecting plate, the second pivot, multiunit skeleton and multiunit connecting block, four connecting seats of group are installed respectively in fixed plate bottom left front side, right front side, left back side and right back side, two sets of landing legs are rotatable to be installed respectively on two sets of connecting seats in the right side, connecting plate bottom right side is provided with the breach, multiunit skeleton and multiunit connecting block staggered rotary connection form the back respectively, and multiunit skeleton and multiunit connecting block are installed on the connecting.

Description

Chair backrest structure

Technical Field

The utility model relates to the technical field of articles for daily use, in particular to a chair backrest structure.

Background

As is well known, a chair is a piece of daily life furniture, and is a seat with a backrest, the existing chair is usually made of harder materials, so that the chair is not convenient to adjust to the most comfortable sitting posture according to the human body structure of each person, the comfort level is lower, the practicability is lower, and the chair is not convenient to fold and is inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can adjust to comfortable position of sitting according to human back, improve user's comfort level, also improve its practicality, the chair can be folded moreover, has not only saved a large amount of spaces, also portable's chair back structure.

The utility model relates to a chair backrest structure, which comprises a fixed plate, four groups of connecting seats, two groups of supporting legs, two groups of fixing sleeves, two groups of sliding rods, two groups of first rotating shafts, a fixed seat, a connecting plate, a second rotating shaft, a plurality of groups of frameworks and a plurality of groups of connecting blocks, wherein the four groups of connecting seats are respectively arranged at the left front side, the right front side, the left rear side and the right rear side of the bottom end of the fixed plate, the two groups of supporting legs are respectively and rotatably arranged on the two groups of connecting seats at the right side, the two groups of sliding rods are respectively and rotatably arranged on the two groups of connecting seats at the left side, the two groups of sliding rods are slidably connected with the two groups of fixing sleeves, the front side fixing sleeve and the front side leg as well as the rear side fixing sleeve and the rear side leg are respectively connected through the two groups, and a plurality of groups of frameworks and a plurality of groups of connecting blocks are arranged on the top end of the connecting plate.

The utility model discloses a chair back structure, two sets of fixed sheathes in all are provided with the multiunit jack, all are provided with the buckle on two sets of slide bars.

The utility model discloses a chair back structure still includes two sets of bracing pieces and headrest, and two sets of bracing pieces are installed on the upside connecting block, and the headrest is installed on the bracing piece.

The utility model discloses a chair back structure is provided with first foam-rubber cushion on the fixed plate, is provided with the second foam-rubber cushion on the headrest.

The utility model discloses a chair back structure still includes four group's cushions, and four group's cushions are installed respectively in two sets of fixed cover bottoms and two sets of landing leg bottoms.

The utility model discloses a chair backrest structure, the fixed plate top sets up to recessed type.

The utility model discloses a chair back structure, be provided with the torsional spring in the second pivot.

The utility model discloses a chair back structure, the cushion material is rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the people sits on the fixed plate, its comfortable position is adjusted according to people's back to multiunit skeleton and multiunit connecting block, when equipment wholly needs folding, make two sets of slide bars outwards slide on two sets of fixed sheathes, two sets of slide bars then drive the fixed plate through two sets of connecting seats in left side and move the upper right side, thereby make fixed plate and skeleton folding, through setting up this equipment, can adjust to comfortable position of sitting according to human back, user's comfort level is improved, also improve its practicality, and the chair can be folded, not only save a large amount of spaces, and is also convenient to carry.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an enlarged partial cross-sectional view of the pouch of fig. 1;

FIG. 3 is a left-view enlarged structural schematic view of the armature of FIG. 1;

FIG. 4 is an enlarged schematic view of A in FIG. 1;

in the drawings, the reference numbers: 1. a fixing plate; 2. a connecting seat; 3. a support leg; 4. fixing a sleeve; 5. a slide bar; 6. a first rotating shaft; 7. a fixed seat; 8. a connecting plate; 9. a second rotating shaft; 10. a notch; 11. a framework; 12. connecting blocks; 13. a jack; 14. buckling; 15. a support bar; 16. a headrest; 17. a first foam-rubber cushion; 18. a second foam pad; 19. and a cushion block.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the chair backrest structure of the present invention comprises a fixing plate 1, four sets of connecting bases 2, two sets of supporting legs 3, two sets of fixing sleeves 4, two sets of sliding rods 5, two sets of first rotating shafts 6, a fixing base 7, a connecting plate 8, a second rotating shaft 9, a plurality of sets of frameworks 11 and a plurality of sets of connecting blocks 12, wherein the four sets of connecting bases 2 are respectively installed at the left front side, the right front side, the left rear side and the right rear side of the bottom end of the fixing plate 1, the two sets of supporting legs 3 are respectively rotatably installed on the two sets of connecting bases 2 at the right side, the two sets of sliding rods 5 are respectively rotatably installed on the two sets of connecting bases 2 at the left side, the two sets of sliding rods 5 are slidably connected with the two sets of fixing sleeves 4, the front side fixing sleeves 4 and the front side legs 3 are respectively connected with the rear side fixing sleeves 4 and the rear side, a gap 10 is formed in the right side of the bottom end of the connecting plate 8, a plurality of groups of frameworks 11 and a plurality of groups of connecting blocks 12 are respectively connected in a staggered and rotatable mode to form a backrest, and the plurality of groups of frameworks 11 and the plurality of groups of connecting blocks 12 are installed at the top end of the connecting plate 8; the people sits on fixed plate 1, its comfortable position is adjusted according to people's back to multiunit skeleton 11 and multiunit connecting block 12, when equipment wholly needs to be folding, make two sets of slide bars 5 outwards slide on two sets of fixed covers 4, two sets of slide bars 5 then drive fixed plate 1 upper right side motion through two sets of connecting seats 2 in left side, thereby make fixed plate 1 folding with skeleton 11, through setting up this equipment, can adjust to comfortable position of sitting according to human back, user's comfort level is improved, also improve its practicality, and the chair can be folded, not only save a large amount of spaces, and is also convenient to carry.

In the chair backrest structure of the utility model, the two groups of fixed sleeves 4 are provided with a plurality of groups of jacks 13, and the two groups of sliding rods 5 are provided with buckles 14; through setting up jack 13 and buckle 14, can adjust the holistic inclination of chair, also be convenient for fold the chair.

The utility model discloses a chair backrest structure, which also comprises two groups of support rods 15 and a headrest 16, wherein the two groups of support rods 15 are arranged on the upper connecting block 12, and the headrest 16 is arranged on the support rods 15; by arranging the support bar 15 and the headrest 16, the head of a user can be lifted conveniently, and the functionality of the head lifting device is improved.

The utility model discloses a chair backrest structure, a first spongy cushion 17 is arranged on a fixed plate 1, and a second spongy cushion 18 is arranged on a headrest 16; by providing the first and second foam pads 17, 18, the comfort level of the user can be improved.

The utility model discloses a chair backrest structure, which also comprises four groups of cushion blocks 19, wherein the four groups of cushion blocks 19 are respectively arranged at the bottom ends of two groups of fixed sleeves 4 and the bottom ends of two groups of supporting legs 3; by providing the pads 19, the harness 4 and the legs 3 are prevented from being damaged by hard contact with the ground.

In the chair backrest structure of the utility model, the top end of the fixed plate 1 is arranged in a concave shape; accords with human engineering, ensures that the human hip is more comprehensively attached to the fixing plate 1, and improves the comfort degree.

In the backrest structure of the chair of the utility model, the second rotating shaft 9 is provided with a torsional spring; provides supporting force for the backrest and improves the comfort degree of people.

In the backrest structure of the chair of the utility model, the cushion block 19 is made of rubber; can play a role of skid resistance.

The utility model discloses a chair back structure, it is at the during operation, at first the people sits on fixed plate 1, its comfortable position is adjusted according to people's back to multiunit skeleton 11 and multiunit connecting block 12, when equipment is whole to need folding, artifical through pressing two sets of buckles 14, make two sets of buckles 14 be located inside two sets of fixed covers 4, then make two sets of slide bars 5 outwards slide on two sets of fixed covers 4, two sets of slide bars 5 then drive fixed plate 1 upper right motion through two sets of connecting seats 2 in left side, thereby make fixed plate 1 with skeleton 11 folding can.

The utility model discloses a chair back structure, its mounting means, connected mode or set up the mode and be common mechanical system, as long as can reach all can implement of its beneficial effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A chair backrest structure is characterized by comprising a fixed plate (1), four groups of connecting seats (2), two groups of supporting legs (3), two groups of fixing sleeves (4), two groups of sliding rods (5), two groups of first rotating shafts (6), a fixed seat (7), a connecting plate (8), a second rotating shaft (9), a plurality of groups of frameworks (11) and a plurality of groups of connecting blocks (12), wherein the four groups of connecting seats (2) are respectively arranged at the left front side, the right front side, the left rear side and the right rear side of the bottom end of the fixed plate (1), the two groups of supporting legs (3) are respectively rotatably arranged on the two groups of connecting seats (2) at the right side, the two groups of sliding rods (5) are respectively rotatably arranged on the two groups of connecting seats (2) at the left side, the two groups of sliding rods (5) are slidably connected with the two groups of fixing sleeves (4), the front side fixing sleeves (4) and the front side fixing sleeves (3) as well, fixing base (7) are installed on fixed plate (1) top right side, and connecting plate (8) are provided with breach (10) through second pivot (9) and fixing base (7) rotatable coupling, connecting plate (8) bottom right side, and crisscross rotatable coupling forms the back respectively in multiunit skeleton (11) and multiunit connecting block (12) to install on connecting plate (8) top multiunit skeleton (11) and multiunit connecting block (12).

2. A chair back rest structure as claimed in claim 1, wherein the two sets of fastening sleeves (4) are provided with a plurality of sets of insertion holes (13), and the two sets of sliding rods (5) are provided with snap-in hooks (14).

3. A chair back rest structure as claimed in claim 2, further comprising two sets of support bars (15) and a headrest (16), the two sets of support bars (15) being mounted on the upper side connecting block (12), the headrest (16) being mounted on the support bars (15).

4. A chair back rest structure as claimed in claim 1, wherein the fixed plate (1) is provided with a first foam pad (17) and the headrest (16) is provided with a second foam pad (18).

5. A chair back rest structure as claimed in claim 4, further comprising four sets of spacers (19), the four sets of spacers (19) being mounted respectively at the bottom ends of the two sets of retaining sleeves (4) and at the bottom ends of the two sets of legs (3).

6. A chair back rest structure as claimed in claim 1, wherein the top end of the fixing plate (1) is provided in a concave shape.

7. A chair back rest structure as claimed in claim 1, wherein a torsion spring is provided on the second rotation shaft (9).

8. A chair back rest structure as claimed in claim 5, wherein the spacer (19) is of rubber.