CN110547621A - chair with linkage of backrest and cushion - Google Patents

Abstract

The invention discloses a chair with a linkage function of a backrest and a cushion, which comprises a chair back outer frame, aluminum alloy pieces, chair back bolts, U-shaped irons, an iron frame, a seat bottom shell, a seat plate and seat sliding screws, wherein cushion tension springs are arranged between the seat plate and the seat bottom shell, supporting irons on the iron frame are movably connected with the U-shaped irons and the seat bottom shell through the seat bolts, the chair back outer frame is arranged at the rear position of the upper end of the iron frame, the number of the seat sliding screws is four, the four seat sliding screws sequentially penetrate through the seat bottom shell, the U-shaped irons and a cushion sliding sheet from bottom to top and then are fixedly connected with the seat plate, the number of the aluminum alloy pieces is two, the lower ends of the two aluminum alloy pieces are inserted into holes in two sides of the upper end of the iron frame, and the chair back bolts sequentially penetrate through the chair back. The chair has the advantages of simple structure, convenient stacking, adjustable inclination angle of the outer frame of the chair back and adjustable depth of the seat board, and the linkage of the backrest and the seat board, thereby improving the comfort level of human body.

Description

A chair with a backrest and a cushion that can be linked

technical field

The invention relates to a chair, in particular to a chair with a backrest and a cushion that can be linked.

Background technique

Chairs are often used in daily life and office space. Traditional chairs supported by four legs are mostly fixed or foldable. The back, armrests and seat cushions cannot be adjusted. It will be very uncomfortable; although there are some seats with rotatable chair backs, there is no linkage of seat cushions, and the comfort is still improved. At the same time, due to the limitation of living and office space, a comfortable and easy-to-storage chair can better meet the needs of the people for a better life.

Contents of the invention

The purpose of the present invention is to provide a chair with a backrest and a seat cushion that can be linked, which has a simple structure and is easy to stack. The advantages of high degree solve the problems raised by the above-mentioned technical background.

In order to achieve the above object, the present invention provides the following technical solutions: a chair with a backrest and a seat cushion that can be linked, including a chair back frame, aluminum alloy parts, chair back bolts, U-shaped iron, iron frame, seat bottom shell, seat plate and Seat sliding screws, two U-shaped irons are provided in total, and one end of the lower side of the two U-shaped irons is fixedly sleeved on two corresponding bosses on the upper end surface of the bottom shell of the seat, each of the U-shaped irons A seat cushion sliding piece is installed on the top, the seat cushion sliding piece is fixedly connected with the seat plate, a seat cushion tension spring is arranged between the seat plate and the seat bottom shell, one end of the seat cushion tension spring is in the middle of the lower end surface of the seat plate The hook at the front is connected, and the other end is connected with the hook at the rear of the inner middle of the seat bottom shell. Two seat cushion springs are arranged at the position behind the lower end surface of the seat plate, and the two cushion cushions The springs are all fixed by screws in the slot behind the lower end of the seat plate, and the lower end of the seat bottom shell is movably installed on the supporting iron on the iron frame cross bar, and the supporting iron on the iron frame is connected with the The U-shaped iron is flexibly connected to the base shell, and the outer frame of the chair back is installed at the position behind the upper end of the iron frame. There are four seat sliding screws, and the four seat sliding screws pass through the bottom of the seat sequentially from bottom to top The shell, the U-shaped iron, and the sliding piece of the seat cushion are fixedly connected with the seat plate. The upper end surface of the seat plate is fixed with cushion cotton. There are two aluminum alloy parts, and the lower ends of the two aluminum alloy parts are inserted into the In the holes on both sides of the upper end of the iron frame, the armrest main body is movably installed in the groove at the upper end of each aluminum alloy part, and the armrest elastic part is movably installed between the aluminum alloy part and the armrest main body. After passing through the outer frame of the chair back and the aluminum alloy part, it is fixedly connected with the armrest screw. A screw gasket is fixed between the armrest screw and the aluminum alloy part, and an armrest sound insulation is sleeved between the aluminum alloy part and the outer frame of the chair back Sleeve and back torsion spring.

Preferably, four supporting feet are provided at the lower end of the iron frame, and a foot pad is sleeved on the lower end of each supporting foot, and casters are sleeved on the lower end of the foot pad.

Preferably, the inner frame of the chair back is fixed inside the outer frame of the chair back, and the inner frame of the chair back is fixed on the inner side of the outer frame of the chair back through the steel buckle of the chair back, and the outer side of the inner frame of the chair back is installed with a mesh , the chair back frame can be rotated backwards by 5°-20°.

Preferably, the torsion value of the back torsion spring is 5-15 N.M.

Preferably, the end of the handrail screw facing away from the aluminum alloy part is sleeved with a handrail end cover.

Preferably, both the armrest sound insulation cover and the screw washer can reduce the noise generated by the movement between the back torsion spring and the aluminum alloy part.

Preferably, the upper end of the armrest body is fixed with an armrest cover, and the armrest body can be rotated by 75°-100°.

Preferably, the seat bottom shell can be rotated by 70°-90°, and the seat plate can slide forward by 30-60 mm under the action of the sliding piece of the seat cushion.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The present invention sets the chair back frame and the back torsion spring. When the user leans back, the chair back frame can rotate backward by 5°-20°, which increases the comfort of the user. When the weight of the human body leaves the chair When the chair is backed up, the back of the chair will automatically reset under the action of the back torsion spring, which is convenient and practical.

2. By providing rotatable armrests and setting the distance between the front and rear legs of the iron frame, the main body of the armrest can be rotated upwards by 75°-100°, and multiple chairs can be stacked vertically to realize the storage of chairs to save space.

3. The present invention facilitates the effect of sliding and turning the seat cushion forward by setting the seat plate, rotating U-shaped iron and seat cushion sliding piece. When the chair is used, in order to increase the comfort of the user, the seat plate can be placed on the seat. Under the action of the pad sliding piece, slide forward 30-60 mm, and when the user gets up, the seat cushion will automatically reset under the action of the cushion tension spring at the bottom of the cushion, and when the chair is not in use, it will turn 70° through the seat plate -90°, multiple chairs can be stacked front and back to realize the storage of chairs to save space.

Description of drawings

Fig. 1 is an explosion diagram of the present invention;

Fig. 2 is a schematic diagram of the seat cushion explosion structure of the present invention;

Fig. 3 is a schematic cross-sectional structure diagram of the installation of the seat cushion tension spring and the seat cushion buffer spring of the present invention;

Fig. 4 is the cross-sectional structure schematic diagram of seat plate, seat bottom shell, seat pad sliding piece, U-shaped iron of the present invention;

Fig. 5 is a schematic diagram of the explosion structure of the handrail of the present invention;

Fig. 6 is the schematic diagram of the explosion structure of the iron frame of the present invention;

Fig. 7 is a structural diagram of the present invention;

Fig. 8 is a schematic diagram of the rotation of the seat cushion and the outer frame of the seat back of the present invention;

Fig. 9 is one of the stack state diagrams of the present invention;

FIG. 10 is the second stack state diagram of the present invention.

The reference signs and names in the figure are as follows:

1. The outer frame of the chair back; 2. The inner frame of the chair back; 3. The armrest cover; 4. The main body of the armrest; 5. The elastic parts of the armrest; 6. Aluminum alloy parts; Screw gasket; 10. Back torsion spring; 11. Armrest sound insulation cover; 12. Chair back bolt; 13. Seat cushion cotton; 14. Seat cushion sliding piece; 15. Base bolt; 16. U-shaped iron; 17. Caster wheel; 18 19. Iron frame; 20. Seat bottom shell; 21. Seat tension spring; 22. Seat buffer spring; 23. Seat plate; 24. Seat slide screw.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1 to Fig. 8, an embodiment provided by the present invention: a chair with a backrest and a cushion that can be linked, including a chair back frame 2, an aluminum alloy part 6, a chair back bolt 12, a U-shaped iron 16, an iron Frame 19, seat bottom shell 20, seat plate 23 and seat sliding screw 24, two U-shaped irons 16 are provided in total, two U-shaped irons 16 are arranged at intervals, and the bottom of the two U-shaped irons 16 One end of the side is fixedly sleeved on two corresponding bosses on the upper end surface of the seat bottom shell 20, and each U-shaped iron 16 is equipped with a cushion sliding piece 14, and the seat cushion sliding piece 14 is fixedly connected with the seat plate 23 A cushion tension spring 21 is arranged between the seat plate 23 and the seat bottom shell 20, one end of the seat cushion tension spring 21 is connected with the hook at the middle of the lower end surface of the seat plate 23, and the other end is connected with the seat bottom shell 20. The hook in the middle of the interior is connected to the back, and the lower end surface of the seat plate 23 is provided with two seat cushion springs 22 at the position behind, and the two seat cushion springs 22 are fixed under the seat plate 23 by screws. In the card slot at the rear of the end face, in order to increase the comfort of the user, the seat plate 23 can slide forward by 30-60 mm under the action of the seat cushion sliding piece 14, and at the same time, when the user gets up, the rear seat plate 23 can be pulled by the seat cushion. The spring 21 automatically resets, which is convenient and practical, and when the chair is not in use, it can be turned up by 70°-90° through the seat plate 23, which is beneficial to stacking multiple chairs back and forth to realize the storage of the chairs. The seat bottom shell 20 The lower end surface of the chair is movably installed on the support iron on the iron frame 19 cross bar, the support iron on the iron frame 19 is movably connected with the U-shaped iron 16 and the base shell 20 through the base bolt 15, and the chair back outer frame 2 is installed At the rear position of the upper end of the iron frame 19, four seat sliding screws 24 are provided, and the four seat sliding screws 24 pass through the seat bottom shell 20, the U-shaped iron 16 and the cushion sliding piece 14 sequentially from bottom to top. It is fixedly connected with the seat plate 23, and the upper end surface of the seat plate 23 is fixed with a cushion cotton 13. When using the chair, a seat cloth cover is provided on the outer side of the cushion cotton 13, which can prevent dust and effectively protect the seat cushion Cotton 13, two aluminum alloy parts 6 are provided in total, the lower ends of the two aluminum alloy parts 6 are inserted into the holes on both sides of the upper end of the iron frame 19, and the upper end groove of each aluminum alloy part 6 The armrest main body 4 is movable installed inside, and the armrest elastic part 5 is installed movablely between the aluminum alloy part 6 and the armrest main body 4, and the chair back bolt 12 passes through the chair back outer frame 2 and the aluminum alloy part 6 successively and connects with the armrest screw. 8 is fixedly connected, a screw washer 9 is fixed between the armrest screw 8 and the aluminum alloy part 6, and an armrest soundproof cover 11 and a back torsion spring 10 are sleeved between the aluminum alloy part 6 and the chair back frame 2, The torsion value of described back torsion spring 10 is 5-15N.M, and the torsion value of back torsion spring 10 is greater than the gravity value of human body, and described chair back outer frame 2 can rotate 5 °-20 ° backwards, and simultaneously both hands Putting it on the armrest main body 4 increases the comfort of the user. At the same time, when the chair is stored, the armrest main body 4 can be rotated upwards by 75°-100°, which is convenient for vertical stacking of the chairs.

Specifically, the lower end of the iron frame 19 is provided with four supporting feet, and the lower end of each supporting foot is sleeved with a foot pad 18, and in some embodiments, the lower end of the foot pad 18 is also sleeved with a caster 17, Described caster 17 is universal roller, is convenient to the sliding of chair.

Specifically, the chair back inner frame 1 is fixed inside the chair back outer frame 2, and the chair back inner frame 1 is fixed on the inner side of the chair back outer frame 2 through a chair back steel buckle, and the chair back inner frame 1 Mesh cloth is installed on the outside, and the chair back outer frame 2 can be rotated backward by 5°-20°, and in the present embodiment, the chair back outer frame 1 can be rotated backward by 15°.

Specifically, the end of the handrail screw 8 facing away from the aluminum alloy part 6 is sleeved with the handrail end cover 7 .

Specifically, both the armrest sound insulation cover 11 and the screw washer 9 can reduce the noise generated by the movement between the back torsion spring 10 and the aluminum alloy part 6 .

The upper end of the armrest body 4 is fixed with an armrest cover 3, and the armrest body 4 can be rotated by 75°-100°, and in this embodiment, the armrest body 4 can be rotated by 90°.

Specifically, the seat bottom shell 20 can be rotated by 70°-90°, and in this embodiment, the seat bottom shell 20 can be rotated by 80°, and the seat plate 23 can slide forward by 30° under the action of the seat cushion sliding piece 14 -60 millimeters, seat plate 23 can slide forward 40 millimeters in the present embodiment.

Please refer to Fig. 9 and Fig. 10. When the chair needs to be stored, by turning the seat plate 23 up by 70°-90°, it is beneficial to stack multiple chairs back and forth, as shown in Fig. 9; rotate the armrest body 4 upward by 75° °-100°, it is convenient for chairs to be stacked vertically, as shown in Figure 10.

Working principle: In the working of the present invention, when the user sits on the chair and leans back on the chair back, the chair back outer frame 2 rotates backward by 5°-20°, and the chair back outer frame 2 and the chair back inner frame 1 are made of aluminum alloy Under the reaction force of the back torsion spring 10 installed inside the part 6, the chair back outer frame 2 can support the human body, and when leaning against the chair back outer frame 2 and the chair back inner frame 1, the center of gravity of the human body moves backward, and pushes the seat plate 23 forward Sliding 30-60 mm, when the center of gravity of the human body leaves the seat back or the seat plate 23, the seat back frame 2 and the seat plate 23 will automatically reset, thereby improving the comfort of the user; when the chair needs to be accommodated, the seat plate 23 Turning up 70°-90° is convenient for chairs to be stacked front and back, and turning the armrest main body 4 upwards 75°-100° is convenient for vertical stacking of chairs, which is convenient and practical.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a chair that back and cushion can be linked, includes back of the chair frame (2), aluminum alloy spare (6), back of the chair bolt (12), U type iron (16), iron stand (19), seat shell (20), bedplate (23) and seat slip screw (24), its characterized in that: the two U-shaped irons (16) are arranged, one ends of the lower sides of the two U-shaped irons (16) are fixedly sleeved on two corresponding bosses on the upper end face of the seat bottom shell (20), a seat cushion sliding sheet (14) is installed on each U-shaped iron (16), the seat cushion sliding sheet (14) is fixedly connected with the seat plate (23), a seat cushion tension spring (21) is arranged between the seat plate (23) and the seat bottom shell (20), one end of the seat cushion tension spring (21) is connected with a hook close to the front in the middle of the lower end face of the seat plate (23), the other end of the seat cushion tension spring is connected with a hook close to the rear in the middle of the inner part of the seat bottom shell (20), two seat cushion buffer springs (22) are arranged at positions close to the rear of the lower end face of the seat plate (23) through screws, the lower end face of the seat bottom shell (20) is movably installed on a support iron on a cross bar of an iron frame (19), the support iron on the iron frame (19) is movably connected with U-shaped iron (16) and a base shell (20) through a base bolt (15), the chair back outer frame (2) is installed at the upper end of the iron frame (19) and leans against the rear position, four seat sliding screws (24) are arranged, the four seat sliding screws (24) sequentially penetrate through the seat bottom shell (20), the U-shaped iron (16) and the cushion sliding sheet (14) from bottom to top and are fixedly connected with the seat board (23), the upper end face of the seat board (23) is fixedly provided with seat cushion cotton (13), the number of the aluminum alloy pieces (6) is two, the lower ends of the two aluminum alloy pieces (6) are respectively inserted into holes at two sides of the upper end of the iron frame (19), a handrail main body (4) is movably installed in an upper end groove of each aluminum alloy piece (6), and a handrail elastic piece (5) is movably installed between the aluminum alloy piece (6) and the handrail main body (4), back of the chair bolt (12) pass back of the chair frame (2) and aluminum alloy spare (6) back and handrail screw (8) fixed connection in proper order, be fixed with screw gasket (9) between handrail screw (8) and aluminum alloy spare (6), handrail sound insulation cover (11) and back of the body torsional spring (10) have been cup jointed between aluminum alloy spare (6) and back of the chair frame (2).

2. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the lower extreme of iron stand (19) is equipped with four supporting legss altogether, and the lower extreme of each supporting legs all cup joints callus on the sole (18), the lower extreme of callus on the sole (18) or cup joint truckle (17).

3. a chair with interlocked backrest and cushion as claimed in claim 1, wherein: the novel chair back structure is characterized in that a chair back inner frame (1) is fixed inside the chair back outer frame (2), the chair back inner frame (1) is fixed on the inner side of the chair back outer frame (2) through a chair back steel buckle, screen cloth is installed on the outer side of the chair back inner frame (1), and the chair back outer frame (2) can rotate backwards by 5-20 degrees.

4. a chair with interlocked backrest and cushion as claimed in claim 1, wherein: the torsion value of the back torsion spring (10) is 5-15 N.M.

5. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: and one end of the handrail screw (8) departing from the aluminum alloy piece (6) is sleeved with a handrail end cover (7).

6. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the handrail sound insulation sleeve (11) and the screw gasket (9) can reduce noise generated between the back torsion spring (10) and the aluminum alloy piece (6) due to movement.

7. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the upper end of the handrail main body (4) is fixed with a handrail surface cover (3), and the handrail main body (4) can rotate 75-100 degrees.

8. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the seat bottom shell (20) can rotate by 70-90 degrees, and the seat plate (23) can slide forwards by 30-60 mm under the action of the seat cushion sliding sheet (14).