Turnover linkage type folding chair

Abstract

The utility model discloses a turnover linkage type folding chair which is simple in structure, and a chair folding mode is changed into an upward storage mode, so that a folded seat plate is placed at the upper part, and supporting legs are placed at the lower part. And the overall space utilization rate is higher. According to the technical scheme, the turnover linkage type folding chair comprises two front supporting legs, two rear supporting legs, a seat plate and a backrest, the two front supporting legs are connected through the backrest, the tops of the two rear supporting legs are hinged to the upper portions of the front supporting legs, and the two rear supporting legs are hinged to the upper portions of the seat plate. The chair is characterized in that a limiting sliding groove is formed in the side face of each front supporting leg, the seat plate is rotationally arranged between the two rear supporting legs, and the two sides of the seat plate are connected with the two limiting sliding grooves in a sliding and limiting mode respectively. The utility model relates to the technical field of seats.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a flip-linked folding chair. Background Art

[0002] As a common piece of furniture, folding chairs have always been highly sought after for their portability and comfort. With the prevalence of simple furniture, people are more concerned about the use of space. Chinese patent publication number CN221242194U discloses a flip linkage folding chair. In the prior art, after the chair is folded, the seat plate and the front and rear support legs are redundantly mixed at the bottom of the chair, so that after folding, it takes up a lot of space and cannot meet the current requirements for space use. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a flip linkage folding chair with a simple structure. The folding method of the chair is changed to upward storage, so that the folded seat plate is placed on the upper part and the supporting legs are placed on the lower part. The overall space utilization rate is higher.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A flip-linked folding chair comprises two front supporting legs, two rear supporting legs, a seat plate and a backrest, wherein the two front supporting legs are connected via the backrest, and the tops of the two rear supporting legs are hinged to the upper parts of the front supporting legs. The chair is characterized in that limiting slide grooves are provided on the sides of the front supporting legs, the seat plate is rotatably arranged between the two rear supporting legs, hinge shafts are provided on both sides of the middle part of the seat plate, and the hinge shafts are slidably and limitedly connected to the limiting slide grooves.

[0006] In the above scheme, the two front supporting legs are connected into a whole through the backrest, and a crescent-shaped limiting slide groove is arranged on the side of each front supporting leg, and the top of the limiting slide groove is higher than the hinge of the front supporting leg and the rear supporting leg. When the chair needs to be folded, the outer side of the seat panel is lifted by hand, and the seat panel is lifted upward with the hinge of the seat panel and the rear supporting leg as the axis. At this time, the hinge axis of the seat panel and the hinge of the front supporting leg will continue to move upward along the limiting slide groove as the seat panel is lifted upward, thereby storing the front supporting legs. After being fully folded, the seat panel is close to the backrest, and the front supporting legs are close to the rear supporting legs.

[0007] According to some embodiments of the utility model, a limit stop block is provided at the bottom of the seat plate, and a load-bearing plate is provided in the middle of the two front supporting legs.

[0008] In the above scheme, by setting a load-bearing plate, when people open the chair and sit on it, the load-bearing plate can provide good load-bearing force. At this time, under the action of gravity, the angles of the two front supporting feet and the two rear supporting feet will become larger and larger, and the limit block abuts against the outer side of the load-bearing plate, limiting the movement of the two front supporting feet and the two rear supporting legs.

[0009] According to some embodiments of the utility model, the tops of the two rear supporting legs are provided with snap-fitting ends, and the two front supporting legs are provided with snap-fitting grooves matching the snap-fitting ends.

[0010] According to some embodiments of the utility model, an upper baffle and a lower baffle are provided inside the clamping groove, and a limiting protrusion is provided at the clamping end. The limiting protrusion is inserted into the clamping groove and moves between the upper baffle and the lower baffle.

[0011] In the above scheme, the clamping end is inserted into the clamping groove, and the limiting protrusion is inserted between the upper baffle and the lower baffle. When in the folded state, the limiting protrusion abuts against the upper baffle, and when in the opened state, the limiting protrusion abuts against the lower baffle. In addition to playing a limiting role, it can also enhance the bearing capacity of the folding chair.

[0012] According to some embodiments of the utility model, the thickness of the two clamping ends is smaller than the thickness of the two rear supporting legs, and each of the front supporting legs is provided with a clearance gap, and the clearance gap is used to place the rear supporting legs.

[0013] In the above solution, when in the folded state, the two rear supporting legs are placed in the gaps, making the folding chair more beautiful and simple.

[0014] According to some embodiments of the present utility model, at least one connecting plate is provided in the middle of the two rear supporting legs.

[0015] In the above solution, the connecting plate connects the two rear supporting legs, thereby increasing the stability of the two rear supporting legs.

[0016] According to some embodiments of the utility model, connecting bosses are provided on both sides of the rear portion of the seat plate, the connecting bosses are provided with first hinge holes, and second hinge holes adapted to the first hinge holes are provided in the middle portions of the two rear supporting legs.

[0017] According to some embodiments of the utility model, the two rear supporting legs are provided with connecting grooves adapted to the connecting bosses.

[0018] In the above scheme, the seat plate and the rear support leg are hinged through the first hinge hole and the second hinge hole. When the product is produced from the factory, in order to facilitate transportation and reduce the packaging space during packaging, the connecting boss and the connecting groove can be plugged in. At this time, the seat plate and the rear support leg are more firmly connected, which can avoid damage and vibration during transportation.

[0019] According to some embodiments of the present invention, the two front supporting legs and the back plate are integrally formed.

[0020] According to some embodiments of the present invention, the two rear supporting legs and the connecting plate are integrally formed.

[0021] In the above solution, the two front supporting legs and the back plate, and the two rear supporting legs and the connecting plate are integrally formed by injection molding, and the structure is more solid and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a flip linkage folding chair of the utility model;

[0023] Figure 2 This is a schematic diagram of the seat plate structure in one embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the mechanism of the front supporting leg in one embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the mechanism of the rear support leg in one embodiment of the utility model;

[0026] Figure 5 Based Figure 3 A magnified view of part A;

[0027] Figure 6 Based Figure 5 sectional view of .

[0028] Figure numerals: 1, seat plate; 2, backrest; 3, front supporting leg; 4, rear supporting leg; 401, second hinge hole; 402, connecting groove; 5, load-bearing plate; 6, clamping end; 602, limiting protrusion; 7, connecting plate; 8, clamping groove; 802, upper baffle plate; 803, lower baffle plate; 9, limiting slide groove; 10, clearance notch; 11, connecting boss; 1101, first hinge hole; 12, hinge shaft 13, limiting block. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0033] like Figures 1 to 6 As shown, a flip-linked folding chair according to an embodiment of the utility model comprises two front supporting legs 3, two rear supporting legs 4, a seat plate 1 and a backrest 2, the two front supporting legs 3 are connected through the backrest 2, the tops of the two rear supporting legs 4 are hinged to the upper parts of the front supporting legs 3, and it is characterized in that a limiting slide groove 9 is provided on the side of each of the front supporting legs 3, the seat plate 1 is rotatably arranged between the two rear supporting legs 4, hinge shafts 12 are provided on both sides of the middle part of the seat plate 1, and the two sides of the seat plate 1 are respectively slidably and limitedly connected to the two limiting slide grooves 9.

[0034] Specifically, the two front supporting legs 3 are connected through the backrest 2, and a crescent-shaped limiting slide groove 9 is arranged on the side of each of the front supporting legs 3, and the top of the limiting slide groove 9 is higher than the hinge of the front supporting leg 3 and the rear supporting leg 4. When the chair needs to be folded, the outer side of the seat panel 1 is lifted by hand, and the seat panel 1 is lifted upward with the hinge of the seat panel 1 and the rear supporting leg 4 as the axis. At this time, the hinge shaft 12 of the seat panel 1 and the hinge of the front supporting leg 3 will be lifted up as the seat panel 1 is lifted, so that the hinge shaft 12 will continue to move upward along the limiting slide groove 9, thereby storing the front supporting leg 3. After being fully folded, the seat panel 1 is attached to the backrest 2, and the front supporting leg 3 is attached to the rear supporting leg 4.

[0035] In some specific embodiments of the present utility model, a limit stopper 13 is provided at the bottom of the seat plate 1 , and a load-bearing plate 5 is provided in the middle of the two front supporting legs 3 .

[0036] Specifically, by setting the load-bearing plate 5, when people open the chair and sit on it, the load-bearing plate 5 can provide good load-bearing force. At this time, under the action of gravity, the angles of the two front supporting legs 3 and the two rear supporting legs 4 will become larger and larger, and the limit block 13 abuts against the outer side of the load-bearing plate 5, limiting the movement of the two front supporting legs 3 and the two rear supporting legs 4.

[0037] In some specific embodiments of the present invention, the tops of the two rear supporting legs 4 are provided with a clamping end 6 , and the two front supporting legs 3 are provided with a clamping groove 8 matching the clamping end 6 .

[0038] As shown in the figure, according to some embodiments of the utility model, an upper baffle 802 and a lower baffle 803 are provided inside the clamping groove 8, and a limiting protrusion 602 is provided at the clamping end 6. The limiting protrusion 602 is inserted into the clamping groove 8 and moves between the upper baffle 802 and the lower baffle 803.

[0039] Specifically, the clamping end 6 is inserted into the clamping groove 8, and the limiting protrusion 602 is inserted between the upper baffle 802 and the lower baffle 803. When in the folded state, the limiting protrusion 602 abuts against the upper baffle 802, and when in the opened state, the limiting protrusion 602 abuts against the lower baffle 803. In addition to playing a limiting role, it can also enhance the bearing capacity of the folding chair.

[0040] In some specific embodiments of the present invention, the thickness of the two clamping ends 6 is smaller than the thickness of the two rear supporting legs 4 , and each of the front supporting legs 3 is provided with a clearance gap 10 , and the clearance gap 10 is used to place the rear supporting legs 4 .

[0041] Specifically, when in the folded state, the rear supporting legs 4 are placed in the clearance gaps 10, so that the chair is more beautiful and simple after being folded.

[0042] In some specific embodiments of the present invention, at least one connecting plate 7 is disposed in the middle of the two rear supporting legs 4 .

[0043] Specifically, the connecting plate 7 connects the two rear supporting legs 4 , thereby increasing the stability of the two rear supporting legs 4 .

[0044] In some specific embodiments of the utility model, connecting bosses 11 are provided on both sides of the rear portion of the seat plate 1, the connecting bosses are provided with first hinge holes 1101, and second hinge holes 401 adapted to the first hinge holes 1101 are provided in the middle portions of the two rear supporting legs 4.

[0045] In some specific embodiments of the present invention, the two rear supporting legs 4 are provided with connecting grooves 402 adapted to the connecting bosses 11 .

[0046] Specifically, the seat plate 1 and the rear supporting leg 4 are hinged through the first hinge hole 1101 and the second hinge hole 401. When the product is produced from the factory, in order to facilitate transportation and reduce the packaging space during packaging, the connecting boss 11 and the connecting groove 402 can be plugged in. At this time, the seat plate 1 and the rear supporting leg 4 are more firmly connected, which can avoid damage and vibration during transportation.

[0047] In some specific embodiments of the present invention, the two front support legs and the back plate (2) are integrally formed.

[0048] In some specific embodiments of the present invention, the two rear supporting legs (4) and the connecting plate (7) are integrally formed.

[0049] Specifically, the two front supporting legs 3 and the back plate 1, and the two rear supporting legs 4 and the connecting plate 7 are integrally formed by injection molding, and the structure is more solid and more convenient to use.

Claims

1. A flip linkage folding chair, comprising two front supporting legs, two rear supporting legs, a seat plate and a backrest, wherein the two front supporting legs are connected through the backrest, and the tops of the two rear supporting legs are hinged to the upper parts of the front supporting legs, characterized in that: A limiting slide groove is provided on the side of the front supporting leg, the seat plate is rotatably arranged between the two rear supporting legs, and hinge shafts are arranged on both sides of the middle part of the seat plate, and the hinge shafts are slidably and limitedly connected with the limiting slide groove.

2. A flip linkage folding chair according to claim 1, characterized in that: A limit stopper is provided at the bottom of the seat plate, and a load-bearing plate is provided at the middle of the two front supporting legs.

3. The flip linkage folding chair according to claim 1, characterized in that: The tops of the two rear supporting legs are provided with clamping ends, and the two front supporting legs are provided with clamping grooves matching the clamping ends.

4. The flip linkage folding chair according to claim 3, characterized in that: An upper baffle and a lower baffle are arranged inside the clamping groove, and a limiting protrusion is arranged at the clamping end. The limiting protrusion is inserted into the clamping groove and moves between the upper baffle and the lower baffle.

5. The flip linkage folding chair according to claim 3, characterized in that: The thickness of the two clamping ends is smaller than the thickness of the two rear supporting legs, and each of the front supporting legs is provided with a clearance gap, and the clearance gap is used to place the rear supporting legs.

6. The flip linkage folding chair according to claim 3, characterized in that: At least one connecting plate is arranged in the middle of the two rear supporting legs.

7. The flip linkage folding chair according to claim 1, characterized in that: The seat plate is provided with connecting bosses on both sides of the rear part, the connecting bosses are provided with first hinge holes, and the middle parts of the two rear supporting legs are provided with second hinge holes matched with the first hinge holes.

8. The flip linkage folding chair according to claim 1, characterized in that: The two rear supporting legs are provided with connecting grooves matched with the connecting bosses.

9. The flip linkage folding chair according to claim 1, characterized in that: The two front supporting legs and the back plate are integrally formed.

10. The flip linkage folding chair according to claim 6, characterized in that: The two rear supporting legs and the connecting plate are integrally formed.

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