Foldable seat
By designing the matching structure of the first leg, scissor bracket, second leg and spring telescopic pin in the folding seat, the problem of the structure easily damaged when the traditional folding seat is subjected to high weight is solved, and better weight dispersion and load-bearing capacity are achieved.
Patent Information
- Application Number
- CN202420869816.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The cross structure of traditional folding seats is easily damaged when they bear higher weights and cannot effectively disperse the weight.
A foldable seat is designed, through the cooperation between the first leg, the scissor bracket, the second leg and the spring telescopic pin, the second leg is brought close to the first leg, and then both are rotated into the U-shaped mounting plate, and the load bearing of the seat is dispersed on the first leg and the second leg by means of a pad.
The load-bearing capacity of the folding seat is increased so that it can disperse the weight more effectively and avoid the problem of cross-structure damage.
Smart Images
Figure CN222997599U_ABST
Abstract
Description
Technical Field
[0001] The present utility model relates to the technical field of seats, and specifically relates to a foldable seat. Background Art
[0002] Folding tables and chairs are seats with the functions of being portable and stackable. They are convenient to move and save space. Modern folding tables and chairs have become the choice for families with smaller housing types.
[0003] Most traditional folding seats adopt a cross structure. If the user has a higher weight, the cross structure on the traditional folding seat will be damaged. Content of the Utility Model
[0004] The purpose of the present utility model is to provide a foldable seat to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the present utility model provides the following technical solution: A foldable seat includes a seat board. At one end of both sides of the top of the seat board, arc-shaped limit plates are installed. The backrest board is rotatably installed on the top of the seat board through the arc-shaped limit plates. A limit rod is movably installed at the bottom end inside the backrest board. Springs are installed at the bottom of both sides inside the backrest board. A U-shaped mounting plate is installed at the bottom of the seat board. Cushions are installed at the four top corners of the inner surface top of the U-shaped mounting plate. At the other end of the bottom of both sides of the inner surface of the U-shaped mounting plate, a first leg is rotatably installed. Scissor brackets are movably installed on both sides of one end of the first leg. A second leg is movably installed at one end of the first leg through the scissor brackets. Spring expansion pins are installed at the top of both sides of the second leg.
[0006] Preferably, an arc-shaped groove and a limit groove are opened at the top of one side of the arc-shaped limit plate. The arc-shaped groove and the limit groove on the arc-shaped limit plate are communicated with each other. The size of the limit rod is adapted to the size of the arc-shaped groove and the limit groove.
[0007] Preferably, movable grooves are opened at the bottom ends of both sides inside the backrest board. The size of the movable grooves on the backrest board is adapted to the size of the springs. The limit rod is slidably connected with the backrest board through the movable grooves.
[0008] Preferably, moving grooves are opened at one end of the first leg and the second leg close to the scissor brackets. The size of the moving grooves on the first leg and the second leg is adapted to the size of the scissor brackets. The first leg and the second leg are slidably connected with the scissor brackets through the moving grooves.
[0009] Preferably, at the other ends of the bottoms on both sides of the inner surface of the U-shaped mounting plate, rotation openings are respectively formed. At the tops on both sides of the first leg, connecting columns are provided. The size of the rotation openings on the U-shaped mounting plate is adapted to the size of the connecting columns on the first leg. The U-shaped mounting plate is rotatably connected to the first leg through the rotation openings and the connecting columns.
[0010] Preferably, at the tops on both sides of the second leg, mounting openings are respectively formed. The size of the mounting openings on the second leg is adapted to the size of the spring expansion pin. A telescopic tongue is provided on the spring expansion pin. At one ends of the bottoms on both sides of the inner surface of the U-shaped mounting plate, bayonet openings are respectively formed. The size of the telescopic tongue on the spring expansion pin is adapted to the size of the bayonet openings on the U-shaped mounting plate. The spring expansion pin is snap-connected to the U-shaped mounting plate through the telescopic tongue and the bayonet openings.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this foldable seat, through the cooperation among the first leg, the scissor bracket, the second leg and the spring expansion pin, the second leg can approach the first leg, and then the first leg and the second leg can be rotated and received into the U-shaped mounting plate. When the user uses it, with the cooperation of the first leg and the second leg and the cushion block, the load of the seat is dispersed on the first leg and the second leg, so that the load-bearing capacity of the folding seat is increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is the front view of the present utility model;
[0013] Figure 2 is the side view of the present utility model;
[0014] Figure 3 is the sectional view of the main view structure of the backrest plate of the present utility model;
[0015] Figure 4 is the perspective view of the telescopic leg of the present utility model;
[0016] Figure 5 is the bottom view of the seat board of the present utility model.
[0017] In the figure: 1, seat board; 2, arc-shaped limiting plate; 3, backrest plate; 4, limiting rod; 5, spring; 6, U-shaped mounting plate; 7, cushion block; 8, first leg; 9, scissor bracket; 10, second leg; 11, spring expansion pin. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a foldable seat, including a seat board 1, arc-shaped limiting plates 2 are installed at one ends of both sides of the top of the seat board 1, a backrest board 3 is rotatably installed on the top of the seat board 1 through the arc-shaped limiting plates 2, and the backrest board 3 can be folded and placed on the top of the seat board 1 through the arc-shaped limiting plates 2. A limiting rod 4 is movably installed at the bottom end inside the backrest board 3, springs 5 are installed at the bottoms of both sides inside the backrest board 3, and the limiting rod 4 can move in the movable groove by the push of the spring 5. A U-shaped mounting plate 6 is installed at the bottom of the seat board 1, and cushion blocks 7 are installed at the four top corners of the inner surface top of the U-shaped mounting plate 6. After the first leg 8 and the second leg 10 are unfolded, with the assistance of the cushion blocks 7, the tops of the first leg 8 and the second leg 10 can support the bottom of the seat board 1. The other ends of the bottoms of both sides of the inner surface of the U-shaped mounting plate 6 are rotatably installed with the first leg 8, both sides of one end of the first leg 8 are movably installed with scissor brackets 9, and one end of the first leg 8 is movably installed with the second leg 10 through the scissor brackets 9. The first leg 8, the second leg 10 and the scissor brackets 9 form a seat base, and the first leg 8 and the second leg 10 can be unfolded or folded through the scissor brackets 9. Spring expansion pins 11 are installed at the tops of both sides of the second leg 10, and through the spring expansion pins 11, the second leg 10 on the seat base can be fixed on the U-shaped mounting plate 6.
[0020] In this embodiment, an arc-shaped groove and a limiting groove are opened at the top of one side of the arc-shaped limiting plate 2, and the arc-shaped groove and the limiting groove on the arc-shaped limiting plate 2 are communicated with each other. The size of the limiting rod 4 is adapted to the sizes of the arc-shaped groove and the limiting groove. When the user flips the backrest board 3, the limiting rod 4 can move on the arc-shaped limiting plate 2 along the arc-shaped groove. After the limiting rod 4 moves to the top of the arc-shaped groove, the limiting rod 4 is pushed into the limiting groove by the output of the spring 5, so that the backrest board 3 can be fixed.
[0021] In this embodiment, movable grooves are opened at the bottom ends of both sides inside the backrest board 3. The size of the movable groove on the backrest board 3 is adapted to the size of the spring 5. The limiting rod 4 is slidably connected to the backrest board 3 through the movable groove, and the limiting rod 4 moves on the backrest board 3 through the movable groove. When the backrest board 3 is unfolded, the spring 5 is in a stretched state. When the backrest board 3 is folded, the spring 5 is in a compressed state.
[0022] In this embodiment, moving grooves are opened at the ends of the first leg 8 and the second leg 10 close to the scissor brackets 9. The size of the moving grooves on the first leg 8 and the second leg 10 is adapted to the size of the scissor brackets 9. The first leg 8 and the second leg 10 are slidably connected to the scissor brackets 9 through the moving grooves, and the scissor brackets 9 are used to connect the first leg 8 and the second leg 10.
[0023] In this embodiment, rotation openings are formed at the other ends of the bottoms on both sides of the inner surface of the U-shaped mounting plate 6. Connecting columns are provided at the tops on both sides of the first leg 8. The size of the rotation openings on the U-shaped mounting plate 6 is adapted to the size of the connecting columns on the first leg 8. The U-shaped mounting plate 6 is rotatably connected to the first leg 8 through the rotation openings and the connecting columns. When the seat base is folded, the seat base can be received inside the U-shaped mounting plate 6.
[0024] In this embodiment, mounting openings are formed at the tops on both sides of the second leg 10. The size of the mounting openings on the second leg 10 is adapted to the size of the spring expansion pin 11. A retractable tongue is provided on the spring expansion pin 11. Locking openings are formed at one ends of the bottoms on both sides of the inner surface of the U-shaped mounting plate 6. The size of the retractable tongue on the spring expansion pin 11 is adapted to the size of the locking openings on the U-shaped mounting plate 6. The spring expansion pin 11 is snap-connected to the U-shaped mounting plate 6 through the retractable tongue and the locking openings. When the seat base is unfolded, the second leg 10 can be locked on the U-shaped mounting plate 6 through the spring expansion pin 11.
[0025] Working principle: When the user needs to fold the seat, the user removes the limit rod 4 from the limit groove, then rotates and folds the backrest plate 3 on the top of the seat board 1, and then unlocks the U-shaped mounting plate 6 and the second leg 10 by pressing the retractable tongue on the spring expansion pin 11 on the second leg 10. Then the first leg 8 and the second leg 10 approach each other, and the scissor bracket 9 will fold. Finally, the user rotates the first leg 8 to receive the first leg 8 and the second leg 10 inside the U-shaped mounting plate 6.
[0026] For those skilled in the art, the present utility is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or scope of the present utility. Therefore, the embodiments of the present utility are exemplary and non-limiting. The scope of the present utility is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0027] In the description of the present utility, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
Claims
1. A foldable seat, comprising a seat plate (1), characterized in that: An arc-shaped limit plate (2) is installed at one end of both sides of the top of the seat plate (1); a backrest plate (3) is rotatably installed on the top of the seat plate (1) through the arc-shaped limit plate (2); a limit rod (4) is movably installed at the bottom end of the backrest plate (3); springs (5) are installed at the bottom of both sides of the backrest plate (3); a U-shaped mounting plate (6) is installed at the bottom of the seat plate (1); pads (7) are installed at the four top corners of the top of the inner surface of the U-shaped mounting plate (6); a first leg (8) is rotatably installed at the other end of the bottom of both sides of the inner surface of the U-shaped mounting plate (6); scissor-type brackets (9) are movably installed on both sides of one end of the first leg (8); a second leg (10) is movably installed on one end of the first leg (8) through the scissor-type bracket (9); and spring telescopic pins (11) are installed at the top of both sides of the second leg (10).
2. A foldable seat according to claim 1, characterized in that: An arc groove and a limiting groove are provided on the top of one side of the arc limiting plate (2); the arc groove and the limiting groove on the arc limiting plate (2) are connected; and the size of the limiting rod (4) is compatible with the size of the arc groove and the limiting groove.
3. A foldable seat according to claim 1, characterized in that: The bottom ends of both sides of the backrest plate (3) are provided with movable grooves, the size of the movable groove on the backrest plate (3) is matched with the size of the spring (5), and the limit rod (4) is slidably connected to the backrest plate (3) through the movable groove.
4. A foldable seat according to claim 1, characterized in that: The first leg (8) and the second leg (10) are each provided with a movable groove at one end close to the scissor-type bracket (9); the size of the movable groove on the first leg (8) and the second leg (10) is adapted to the size of the scissor-type bracket (9); and the first leg (8) and the second leg (10) are slidably connected to the scissor-type bracket (9) via the movable groove.
5. A foldable seat according to claim 1, characterized in that: The other end of the bottom of both sides of the inner surface of the U-shaped mounting plate (6) is provided with a rotation opening, and the top of both sides of the first leg (8) is provided with a connecting column, the size of the rotation opening on the U-shaped mounting plate (6) is matched with the size of the connecting column on the first leg (8), and the U-shaped mounting plate (6) is rotatably connected to the first leg (8) through the rotation opening and the connecting column.
6. A foldable seat according to claim 1, characterized in that: The tops of both sides of the second leg (10) are provided with mounting openings, the size of the mounting openings on the second leg (10) is matched with the size of the spring telescopic pin (11), the spring telescopic pin (11) is provided with a telescopic tongue, one end of the bottom of both sides of the inner surface of the U-shaped mounting plate (6) is provided with a bayonet, the size of the telescopic tongue on the spring telescopic pin (11) is matched with the size of the bayonet on the U-shaped mounting plate (6), and the spring telescopic pin (11) is connected to the U-shaped mounting plate (6) by the telescopic tongue and the bayonet.