Seat with seat quick-release structure

Abstract

The invention relates to a chair with a chair surface quick-release structure, which is used for solving the technical problem that a part of existing leisure chairs mentioned in the background technology cause long-time physical fatigue of a user due to the fact that a backrest which is fixedly connected or integrally formed with a seat plate can block the rotation adjustment of the upper body posture of the user when the user sits and leans for a long time and needs to turn around to adjust the sitting posture of the user. Comprising a seat plate and a plurality of supporting legs arranged at the bottom of the seat plate, a horizontal backrest is placed on the top face of the seat plate in an abutting mode, the same side of the seat plate and the same side of the backrest are rotationally connected, the backrest can rotate to one side of the seat plate and is perpendicular to the seat plate, a connecting plate is arranged at the bottom of the seat plate and fixedly arranged among the supporting legs, and a pushing assembly is arranged on the connecting plate. The pushing assembly is used for pushing the seat plate and the backrest and separating the seat plate from the connecting plate, and at the moment, the seat plate and the backrest can rotate relative to the connecting plate and the supporting legs. The chair is simple in structure and is mainly used for rotating and adjusting the upper body posture of the leisure chair which cannot be seated and leaned.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, and in particular to a chair with a quick-detachable seat surface structure. Background Art

[0002] Leisure chairs are chairs that we usually use to enjoy our leisure time. This type of chair is not as formal as dining chairs and office chairs. It has some small personalities and can bring people both visual and physical comfort. However, the backrests of some existing leisure chairs are fixed or integrally formed with the seat. When the user needs to turn around and adjust the sitting posture after sitting for a long time, the backrests fixed or integrally formed with the seat will block the rotation and adjustment of the user's upper body posture, causing the user to be physically fatigued for a long time. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and to propose a chair with a quick-release seat structure, which is used to solve the technical problem mentioned in the background technology that when a user sits on some of the existing leisure chairs for a long time and needs to turn around to adjust his sitting posture, the backrest fixed to or integrally formed with the seat plate will block the rotation adjustment of the user's upper body posture, causing the user to suffer from prolonged physical fatigue.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A chair with a quick-release seat structure comprises a seat plate and a plurality of supporting legs arranged at the bottom of the seat plate, a horizontal backrest being placed against the top surface of the seat plate, the seat plate being rotatably connected to the same side of the backrest, the backrest being rotatable to one side of the seat plate and the two being relatively perpendicular, a connecting plate being provided at the bottom of the seat plate, the connecting plate being fixedly arranged between the plurality of supporting legs, a pushing assembly being provided on the connecting plate, the pushing assembly being used for pushing the seat plate and the backrest and separating the seat plate from the connecting plate, at which time the seat plate and the backrest can rotate relative to the connecting plate and the supporting legs.

[0006] Working principle:

[0007] First, the backrest is placed horizontally against the seat plate, and the user sits on the backrest. When the user needs to lean on the backrest, the user flips the backrest until it is vertically relatively perpendicular to the seat plate, and the user sits on the seat plate and leans on the backrest. When the user needs to rotate the upper body posture multiple times, the seat plate and backrest can be raised and separated from the connecting plate and support legs through the push assembly.

[0008] The beneficial effects of the present invention are:

[0009] During the use of the present invention, the user can rotate and adjust the reversible backrest so that the backrest can be folded and leaned, thereby increasing the use function of the backrest. At the same time, the seat plate and the backrest support can be raised to achieve rotation adjustment, which has a simple structure, good effect and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of the present invention;

[0011] Figure 2 for Figure 1 Front view after the middle backrest is flipped over;

[0012] Figure 3 for Figure 2 Front view of the middle seat plate and backrest after they are raised;

[0013] Figure 4 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0014] Figure 5 for Figure 1 Schematic diagram of the connection structure of the middle positioning cylinder;

[0015] Figure 6 for Figure 2 Schematic diagram of the connection structure in which the middle slide bar extends out of the positioning tube;

[0016] Figure 7 for Figure 3 Schematic diagram of the structure in which the middle seat plate, backrest and connecting plate rise and separate.

[0017] Explanation of the reference numerals in the accompanying drawings: seat plate 1, supporting leg 2, backrest 3, connecting plate 4, first mounting groove 5, second mounting groove 6, first positioning groove 7, first clamping groove 8, second positioning groove 9, second clamping groove 10, spring hinge 11, first side wing 12, second side wing 13, limiting block 14, positioning cylinder 15, arc block 16, bolt 17, slider 18, slide rod 19, pull block 20, airbag 21, placement groove 22, push plate 23, abutment groove 24, abutment block 25, clamping block 26, clamping groove 27, mounting frame 28, cylinder 29, limiting plate 30, first magnet 31, second magnet 32, cushion 33, massage protrusion 34, Velcro sticky surface 35, Velcro fur surface 36, anti-slip pad 37. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-Figure 7As shown, a chair with a quick-release seat structure comprises a seat plate 1 and a plurality of supporting legs 2 arranged at the bottom of the seat plate 1, the bottom of the foot of each supporting leg 2 is glued with a rubber anti-skid pad 37, a horizontal backrest 3 is placed against the top surface of the seat plate 1, a seat cushion 33 is provided on the side of the backrest 3 facing away from the seat plate 1, a plurality of massage convex points 34 are provided on the seat cushion 33, a Velcro adhesive surface 35 is glued on the bottom of the seat cushion 33, a Velcro fur surface 36 is glued on the side of the backrest 3 facing away from the seat plate 1, the seat plate 1 is rotatably connected with the backrest 3 on the same side, the backrest 3 can be rotated to one side of the seat plate 1 and the two are relatively perpendicular, a rotation groove is provided between the seat plate 1 and the backrest 3, the rotation groove comprises a first mounting groove 5 and a second mounting groove 6, the first mounting groove 5 and the second mounting groove 6 are respectively opened on the backrest The backrest 3 and the seat plate 1 are provided with a first positioning groove 7 on one side of the first mounting groove 5 and a first clamping groove 8 on the other side of the first mounting groove 5, a second positioning groove 9 on one side of the second mounting groove 6 and a second clamping groove 10 on the other side of the second mounting groove 6, and also include a spring hinge 11, a first side wing 12 and a second side wing 13 are provided on the spring hinge 11, the spring hinge 11 is rotatably arranged between the first mounting groove 5 and the second mounting groove 6, and the first side wing 12 is fixedly arranged on the second positioning groove 9, and the second side wing 13 is fixedly arranged on the first positioning groove 7, when the backrest 3 is horizontally arranged on the seat plate 1, the second side wing 13 is clamped in the second clamping groove 10 and the first side wing 12 is separated from the first clamping groove 8, after the backrest 3 rotates relative to the seat plate 1, the second side wing 13 is clamped with the second clamping groove 1 0 is separated and the first clamping groove 8 is clamped relative to the first side wing 12. A limit block 14 is fixedly provided at the bottom of the seat plate 1. The limit block 14 is used to abut and limit the bottom of the backrest 3 after it is rotated vertically. A rotatable and pullable armrest is provided on the opposite sides of the backrest 3. The armrest is a positioning cylinder 15. A semicircular arc block 16 is fixedly provided at the bottom of the positioning cylinder 15. An arc-shaped limit plate 30 is fixedly provided on the backrest 3. The arc-shaped limit plate 30 faces one side of the seat plate 1. The arc block 16 is rotatably arranged on the arc inner side of the limit plate 30. The limit plate 30 extends along the vertical and horizontal sides respectively, and is used to limit and support the positioning cylinder 15 after vertical rotation and horizontal rotation. A bolt 17 threadedly connected to the backrest 3 is threadedly penetrated on the arc block 16. The bolt 17 is used The positioning cylinder 15 is rotated to position and adjust, and a slider 18 is slidably provided in the positioning cylinder 15. A slide bar 19 is fixedly connected to the slider 18 and penetrates the positioning cylinder 15. A pull block 20 opposite to the slide bar 18 and located outside the positioning cylinder 15 is fixedly provided on the slide bar 19. An air bag 21 is provided on the slide bar 19. The air bag 21 is used to evacuate and swell after the positioning cylinder 15 is pulled out of the slide bar 19 until the air bag 21 is flush with the surface of the positioning cylinder 15. A first magnet 31 is fixedly provided on the side adjacent to the positioning cylinder 15 and the pull block 20, and a second magnet 32 ​​is fixedly provided on the side adjacent to the pull block 20 and the positioning cylinder 15. The first magnet 31 and the second magnet 32 ​​are magnetically attracted to each other. A connecting plate 4 is provided at the bottom of the seat plate 1, and the connecting plate 4 is fixedly provided between the plurality of supporting legs 2. A push assembly is provided on the connecting plate 4.The pushing assembly is used to push the seat plate 1 and the backrest 3 and separate the seat plate 1 from the connecting plate 4. At this time, the seat plate 1 and the backrest 3 can rotate relative to the connecting plate 4 and the supporting leg 2. The connecting plate 4 is flush with the supporting leg 2. The seat plate 1 is arranged on the connecting plate 4 and the supporting leg 2. A placement groove 22 is provided on the top of the connecting plate 4. A pushing plate 23 is clamped and placed in the placement groove 22. The pushing plate 23 is located at the lower part of the seat plate 1. A circle of annular abutting grooves 24 are opened at the bottom of the seat plate 1. A circular abutting block 25 is fixedly provided on the top of the pushing plate 23. A part of the abutting block 25 is clamped and arranged in the abutting groove 24. A plurality of clamping blocks 26 are fixedly provided at the bottom of the seat plate 1. The plurality of clamping blocks 26 are arranged relatively to each other in pairs. On both sides of the push plate 23, a slot 27 is provided on the top surface of each support leg 2. Multiple slots 27 are arranged in pairs on both sides of the placement slot 22. Multiple blocks 26 are correspondingly clamped in the multiple slots 27. A mounting frame 28 is fixed between the multiple support legs 2. A cylinder 29 with a telescopic end pointing vertically upward is fixed on the mounting frame 28. The telescopic end of the cylinder 29 passes through the connecting plate 4 and is fixed to the bottom of the push plate 23. The cylinder 29 is used to push the push plate 23 so that the abutment blocks 25 are all clamped in the top of the push abutment slot 24, thereby driving the seat plate 1, the backrest 3, and the block 26 to rise vertically and separate from the support leg 2, the connecting plate 4, and the slot 27.

[0020] The side of the limit block 14 adjacent to the support leg 2 is relatively parallel to the support leg 2 ; the first mounting groove 5 and the second mounting groove 6 are both provided with the same circumferential surface; the bottom end of the backrest 3 after being rotated vertically is abutted against the limit block 14 .

[0021] Installation method:

[0022] First, the backrest 3 is placed horizontally against the top of the seat plate 1, and the user can sit on the cushion 33. When leaning on the backrest 3, the backrest 3 can be flipped to be relatively vertical with the seat plate 1, so that the bottom of the flipped backrest 3 abuts against the top of the limit block 14. In this process, the second side wing 13 rotates with the backrest 3 relative to the spring hinge 11, and the first clamping groove 8 rotates with the backrest 3 relative to the spring hinge 11 and gradually approaches the first side wing 12, until the backrest 3 is vertical relative to the seat plate 1, and the first side wing 12 is clamped in the first clamping groove 8.

[0023] Next, the user loosens the bolt 17 and rotates the positioning tube 15 to make the positioning tube 15 and the limiting plate 30 contact horizontally, and then tightens the bolt 17. After that, the pull block 20 is pulled to separate the second magnet 32 ​​from the first magnet 31, and the slide bar 19 is pulled outward by the pull block 20 to drive the airbag 21 to move out of the positioning tube 15 completely, and then the airbag 21 is inflated to make it bulge to be flush with the surface of the positioning tube 15.

[0024] When the user needs to rotate the upper body several times to adjust the posture, the cylinder 29 pushes the push plate 23 upward vertically, so that the abutment block 25 is completely engaged in the abutment groove 24, thereby abutting against the top of the abutment groove 24. At this time, the push plate 23 pushes the seat plate 1, driving the block 26 to move vertically upward and separate from the groove 27. When the user sits on the seat plate 1 and rotates, the seat plate 1 rotates relative to the abutment block 25 through the abutment groove 24.

[0025] Beneficial effects:

[0026] The Velcro fur surface 36 and the Velcro sticky surface 35 facilitate installation and disassembly of the seat cushion 33, and the structure is simple and easy to operate; the airbag 21 facilitates the horizontal height of the slide rod 19 and the positioning tube 15 to be consistent, which is convenient for placing the arm; the spring hinge 11, the first side wing 12 and the second side wing 13 facilitate the folding and flipping of the backrest 3, and the structure is simple, the effect is good, and the practicability is strong; the cylinder 29 and the push plate 23 facilitate the vertical lifting of the seat plate 1, and the clamping block 26 and the clamping groove 27 facilitate the clamping and positioning of the unlifted seat plate 1, and the structure is simple and the effect is good.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A chair with a quick-release seat structure, comprising a seat plate (1) and a plurality of supporting legs (2) arranged at the bottom of the seat plate (1), characterized in that: A horizontal backrest (3) is placed against the top surface of the seat plate (1); the seat plate (1) and the backrest (3) are rotatably connected on the same side; the backrest (3) can be rotated to one side of the seat plate (1) and the two are relatively vertical; a connecting plate (4) is provided at the bottom of the seat plate (1); the connecting plate (4) is fixed between the plurality of support legs (2); a pushing assembly is provided on the connecting plate (4); the pushing assembly is used to push the seat plate (1) and the backrest (3) and separate the seat plate (1) from the connecting plate (4); at this time, the seat plate (1) and the backrest (3) can be rotated relative to the connecting plate (4) and the support legs (2).

2. The seat with a quick-release seat structure according to claim 1, characterized in that: A rotation groove is provided between the seat plate (1) and the backrest (3), and the rotation groove includes a first mounting groove (5) and a second mounting groove (6). The first mounting groove (5) and the second mounting groove (6) are respectively arranged on the backrest (3) and the seat plate (1). A first positioning groove (7) is provided on one side of the first mounting groove (5) and a first clamping groove (8) is provided on the other side of the first mounting groove (5). A second positioning groove (9) is provided on one side of the second mounting groove (6) and a second clamping groove (10) is provided on the other side of the second mounting groove (6). The spring hinge (11) also includes a first side wing (12) and a second side wing (13). The spring hinge (11) is rotatably arranged between the first mounting groove (5) and the second mounting groove (6), and the first side wing (12) is fixedly engaged with the first side wing (13). The second side wing (13) is arranged on the second positioning groove (9), the second side wing (13) is fixedly arranged on the first positioning groove (7), the first positioning groove (7) and the second clamping groove (10) can be relatively abutted and connected, and the first clamping groove (8) and the second positioning groove (9) can be relatively abutted and connected. When the backrest (3) is horizontally arranged on the seat plate (1), the second side wing (13) is clamped in the second clamping groove (10) and the first side wing (12) is separated from the first clamping groove (8). After the backrest (3) is rotated relative to the seat plate (1), the second side wing (13) is separated from the second clamping groove (10) and the first clamping groove (8) is clamped relative to the first side wing (12). A limit block (14) is fixedly arranged at the bottom of the seat plate (1), and the limit block (14) is used to abut and limit the bottom of the backrest (3) after it is rotated vertically.

3. The seat with a seat surface quick-release structure according to claim 1, characterized in that: The backrest (3) is provided with a rotatable and pullable armrest on both opposite sides. The armrest is a positioning cylinder (15). A semicircular arc block (16) is fixedly provided at the bottom of the positioning cylinder (15). A bolt (17) threadedly penetrates the arc block (16) and is threadedly connected to the backrest (3). The bolt (17) is used to rotate and position the positioning cylinder (15). A slider (18) is slidably provided in the positioning cylinder (15). A slide bar (19) passing through the positioning cylinder (15) is fixedly connected to the slide bar (18). A pulling block (20) opposite to the slide bar (18) and located outside the positioning cylinder (15) is fixedly provided on the slide bar (19). An air bag (21) is provided on the slide bar (19). The air bag (21) is used to swell up after the slide bar (19) is pulled out of the positioning cylinder (15) until the air bag (21) is flush with the surface of the positioning cylinder (15).

4. The seat with a seat surface quick-release structure according to claim 1, characterized in that: The connecting plate (4) is flush with the supporting leg (2); the seat plate (1) is arranged on the connecting plate (4) and the supporting leg (2); a placement groove (22) is provided on the top of the connecting plate (4); a push plate (23) is clamped and placed in the placement groove (22); the push plate (23) is located at the lower part of the seat plate (1); a circle of annular abutment grooves (24) are provided at the bottom of the seat plate (1); a circular abutment block (25) is fixedly provided on the top of the push plate (23); a part of the abutment block (25) is clamped and arranged in the abutment groove (24); a plurality of clamping blocks (26) are fixedly provided at the bottom of the seat plate (1); the plurality of clamping blocks (26) are arranged in pairs on both sides of the push plate (23); and each of the supporting legs (2) has a top surface provided with a plurality of clamping blocks (26). A card slot (27), a plurality of the card slots (27) are arranged in pairs on both sides of the placement slot (22), a plurality of the card blocks (26) are correspondingly carded in the plurality of card slots (27), a mounting frame (28) is fixed between the plurality of support legs (2), a cylinder (29) with a telescopic end pointing vertically upward is fixed on the mounting frame (28), the telescopic end of the cylinder (29) passes through the connecting plate (4) and is fixedly connected to the bottom of the push plate (23), the cylinder (29) is used to push the push plate (23) so that the abutment blocks (25) are all carded in the top of the push abutment slot (24), thereby driving the seat plate (1), the backrest (3), the card block (26) to rise vertically and separate from the support leg (2), the connecting plate (4) and the card slot (27).

5. The seat with a seat surface quick-release structure according to claim 3, characterized in that: The backrest (3) is fixedly provided with an arc-shaped limiting plate (30), the arc-shaped limiting plate (30) faces one side of the seat plate (1), the arc block (16) is rotatably arranged on the arc inner side of the limiting plate (30), and the limiting plate (30) extends along the vertical and horizontal sides respectively, and is used for limiting and supporting the positioning cylinder (15) after vertical rotation and horizontal rotation.

6. The seat with a seat surface quick-release structure according to claim 3, characterized in that: A first magnet (31) is fixedly provided on one side of the positioning tube (15) adjacent to the pulling block (20), and a second magnet (32) is fixedly provided on one side of the pulling block (20) adjacent to the positioning tube (15), and the first magnet (31) and the second magnet (32) are magnetically attracted to each other.

7. The seat with a seat surface quick-release structure according to claim 1, characterized in that: A seat cushion (33) is provided on the side of the backrest (3) facing away from the seat plate (1), and a plurality of massage convex points (34) are provided on the seat cushion (33). A Velcro adhesive surface (35) is glued to the bottom of the seat cushion (33), and a Velcro fleece surface (36) is glued to the side of the backrest (3) facing away from the seat plate (1).

8. The seat with a seat surface quick-release structure according to claim 1, characterized in that: The bottom of each support leg (2) is glued with a rubber anti-skid pad (37).

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