Foldable seat

Abstract

The utility model relates to the technical field of seats, in particular to a foldable seat which comprises a storage bin and a supporting seat, a first guide groove is formed in the inner wall of the storage bin, a second guide groove is formed in the inner wall of the storage bin, the first guide groove and the second guide groove are not intersected with each other, limiting holes are symmetrically formed in the inner wall of the storage bin, and the supporting seat is arranged in the storage bin. The limiting holes communicate with the first guide grooves, the supporting bases are slidably connected with the inner wall of the storage bin, and the side faces of the supporting bases are fixedly connected with sliding shafts. When the folding chair is unfolded, the first handle groove is lifted to drive the supporting seat to extend outwards, the supporting seat is locked by inserting the bolt into the limiting hole, and the seat plate is synchronously pressed down to enable the damping rotating shaft to unfold the horizontal seat surface, so that the supporting column vertically falls to the ground; after the bolt is pressed for unlocking, the supporting base retracts along the guide groove, the supporting column is stored in the storage groove, and finally the whole is embedded into the storage bin.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to a foldable seat. Background Technology

[0002] A chair is a piece of furniture whose core function is to support the human body in a sitting posture. It usually consists of a seat, a support structure and a backrest, and is designed to provide comfort and stability. It is widely used in daily life such as homes and offices. A folding chair is a portable seat characterized by a foldable structure. Most of them achieve space compression through mechanical devices such as hinges and rotating shafts, combining functionality and space efficiency.

[0003] Existing folding chairs, when folded and stored using a hinged folding mechanism, are not stable enough when stacked due to their regular external shape, and are prone to tipping over. Furthermore, after prolonged use, the hinged folding structure is prone to loosening and aging, resulting in instability of the chair.

[0004] Therefore, in response to the aforementioned issues that the regular external shape of the folded seat makes it unstable when stacked, prone to tipping over, and that the hinge folding structure is prone to loosening and aging after prolonged use, resulting in instability, a solution is found. This solution utilizes a double guide groove linkage sliding shaft and support seat extension and retraction, a return spring to drive the pin to lock the limit hole, and a double damping rotating shaft to control the rotation angle of the seat plate and support column, thus achieving a compact folding mechanism for seat support, unfolding, and storage. Utility Model Content

[0005] To overcome the problems that arise when using folding chairs, the hinged folding mechanism causes instability when stacking the chairs due to their regular shape, making them prone to tipping over. Furthermore, the hinged folding structure can loosen and age after prolonged use, leading to instability.

[0006] The technical solution of this utility model is as follows: a foldable seat, including a storage compartment and a support base. The inner wall of the storage compartment is provided with a first guide groove and a second guide groove. The first guide groove and the second guide groove do not intersect each other. The inner wall of the storage compartment is symmetrically provided with limiting holes, which are in communication with the first guide groove. The support base is slidably connected to the inner wall of the storage compartment, and a sliding shaft is fixedly connected to the side of the support base.

[0007] Preferably, the first guide groove is symmetrically distributed in the storage compartment, the second guide groove is symmetrically distributed in the storage compartment, the sliding shaft is symmetrically distributed on the support base, and the sliding shaft is slidably connected to the second guide groove.

[0008] Preferably, the support base has a sliding groove on its side, the sliding grooves are symmetrically distributed on the support base, a return spring is fixedly connected to the inner wall of the sliding groove, a sliding pin is fixedly connected to the end of the return spring, the sliding pin is slidably connected to the sliding groove, the sliding pin is slidably connected to the first guide groove, and the sliding pin is slidably connected to the limiting hole.

[0009] Preferably, a seat back is welded and fixed to the top surface of the support base near the first guide groove, a cushion is fixedly connected to the side of the seat back, and a first handle groove is provided on the side of the seat back.

[0010] Preferably, a first damping shaft is rotatably connected to the inner side of the support base. The first damping shaft is symmetrically distributed on the support base, and a seat plate is fixedly connected to the end of the first damping shaft. The seat plate is rotatably connected to the inner side of the support base.

[0011] Preferably, the bottom surface of the seat panel is provided with a second handle groove, the top surface of the seat panel is fixedly connected with a seat cushion, and the bottom surface of the seat panel is provided with a storage groove, which is symmetrically distributed on the seat panel.

[0012] Preferably, the inner wall of the storage slot is rotatably connected to a support column, and the inner wall of the storage slot is fixedly connected to a second damping shaft. The support column is located on the outside of the second damping shaft, and the second damping shaft passes through the support column.

[0013] The beneficial effects of this utility model are:

[0014] 1. When the folding seat needs to be unfolded, the seat back is lifted upward through the first handle groove. The return spring pushes the sliding pin to slide along the first guide groove, thereby pulling the support seat upward and causing the sliding shaft to slide outward along the second guide groove, so that the support seat extends linearly from the inside of the storage compartment. When the sliding pin moves with the support seat to the position of the limiting hole, under the drive of the return spring, the sliding pin is pushed to insert into the limiting hole, thus locking the support seat. By applying pressure to the seat plate, it is rotated around the first damping axis to unfold to a horizontal state. At the same time, the support column in the storage compartment is rotated around the second damping axis to a vertical position and contact the ground, thereby providing stable support for the seat.

[0015] 2. When the seat needs to be folded and stored, the seat plate is rotated in the opposite direction around the first damping pivot by the second handle groove. At the same time, the support column is retracted synchronously by the resistance of the second damping pivot, so that the support column is stored in the storage groove on the bottom surface of the seat plate to avoid the outward protrusion affecting the folding thickness. By pressing the sliding pin, the return spring is compressed and it is released from the limit hole to unlock. Then, the support seat is pushed down by the seat back and seat plate to drive the sliding shaft to retract along the first guide groove. Finally, the entire seat is embedded into the storage compartment and fits against the inner wall to achieve compact storage. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the storage compartment of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the seat back of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the support base of this utility model;

[0020] Figure 5 The diagram shown is a partial cross-sectional three-dimensional structural schematic of the seat panel of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Storage compartment; 2. First guide groove; 3. Second guide groove; 4. Limiting hole; 5. Support base; 6. Sliding shaft; 501. Sliding groove; 502. Return spring; 503. Sliding pin; 701. Seat back; 702. Cushion; 703. First handle groove; 704. First damping pivot; 705. Seat plate; 706. Second handle groove; 707. Seat cushion; 708. Storage groove; 709. Support column; 710. Second damping pivot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides an embodiment: a foldable seat, including a storage compartment 1 and a support base 5. The inner wall of the storage compartment 1 is provided with a first guide groove 2 and a second guide groove 3. The first guide groove 2 and the second guide groove 3 do not intersect each other. The inner wall of the storage compartment 1 is symmetrically provided with limiting holes 4, which are in communication with the first guide groove 2. The support base 5 is slidably connected to the inner wall of the storage compartment 1, and a sliding shaft 6 is fixedly connected to the side of the support base 5.

[0024] The first guide groove 2 is symmetrically distributed in the storage compartment 1, the second guide groove 3 is symmetrically distributed in the storage compartment 1, and the sliding shaft 6 is symmetrically distributed on the support base 5. The sliding shaft 6 is slidably connected to the second guide groove 3. The support base 5 is slidably connected to the second guide groove 3 on the inner wall of the storage compartment 1 through the sliding shaft 6 on the side of the support base 5, so as to realize the bidirectional sliding folding of the support base 5 in the storage compartment 1. The limit hole 4 is connected to the first guide groove 2 to provide the positioning function after the seat is unfolded.

[0025] The side of the support base 5 is provided with a sliding groove 501. The sliding grooves 501 are symmetrically distributed on the support base 5. A return spring 502 is fixedly connected to the inner wall of the sliding groove 501. A sliding pin 503 is fixedly connected to the end of the return spring 502. The sliding pin 503 is slidably connected to the sliding groove 501, the first guide groove 2, and the limiting hole 4. The sliding pin 503 is driven by the return spring 502 in the sliding grooves 501 on both sides of the support base 5, so that it can slide into the limiting hole 4 for limiting when the support base 5 moves, thus completing the fixation after the seat is unfolded. When the seat needs to be folded and stored, the locking is released by manually pressing the sliding pin 503 to disengage from the limiting hole 4.

[0026] A seat back 701 is welded and fixed to the top surface of the support base 5 near the first guide groove 2. A cushion 702 is fixedly connected to the side of the seat back 701. A first handle groove 703 is provided on the side of the seat back 701. The seat back 701, which is integrally welded and fixed, provides support. The cushion 702 conforms to the curve of the human back, increasing the comfort of the seat. The first handle groove 703 makes it easy to pull the seat back 701 to unfold.

[0027] A first damping shaft 704 is rotatably connected to the inner side of the support base 5. The first damping shaft 704 is symmetrically distributed on the support base 5. The end of the first damping shaft 704 is fixedly connected to the seat plate 705. The seat plate 705 is rotatably connected to the inner side of the support base 5. When the seat plate 705 is rotated and unfolded, the first damping shaft 704 controls the flipping speed of the seat plate 705 to avoid collision due to inertia when unfolding.

[0028] The bottom surface of the seat plate 705 is provided with a second handle groove 706, and the top surface of the seat plate 705 is fixedly connected with a seat cushion 707. The bottom surface of the seat plate 705 is provided with a storage groove 708, which is symmetrically distributed on the seat plate 705. The seat plate 705 can be pulled outward along the second guide groove 3 by the second handle groove 706, the seat cushion 707 can increase the comfort of the seat, and the support column 709 can be rotated and stored by the storage groove 708.

[0029] A support column 709 is rotatably connected to the inner wall of the storage groove 708, and a second damping shaft 710 is fixedly connected to the inner wall of the storage groove 708. The support column 709 is located on the outside of the second damping shaft 710, and the second damping shaft 710 passes through the support column 709. After the seat plate 705 is unfolded to a horizontal state, the support column 709 in the storage groove 708 automatically swings down around the second damping shaft 710 under the action of gravity. When the seat needs to be folded, the seat plate 705 is rotated and folded in the opposite direction around the first damping shaft 704 through the second handle groove 706. At the same time, the support column 709 is retracted synchronously by the resistance of the second damping shaft 710, so that the support column 709 is stored in the storage groove 708 on the bottom surface of the seat plate 705, so as to avoid the outward protrusion affecting the folding thickness.

[0030] Working principle: According to Figures 1-5 As shown, when the folding seat needs to be unfolded, the seat back 701 is pulled upward through the first handle groove 703. The return spring 502 pushes the sliding pin 503 to slide along the first guide groove 2, thereby pulling the support seat 5 upward and causing the sliding shaft 6 to slide outward along the second guide groove 3, so that the support seat 5 extends linearly from the inside of the storage compartment 1. When the sliding pin 503 reaches the position of the limiting hole 4 with the displacement of the support seat 5, under the drive of the spring force of the return spring 502, the sliding pin 503 is pushed into the limiting hole 4, completing the locking of the support seat 5. By applying pressure to the seat plate 705, it is rotated around the first damping pivot 704 to unfold to a horizontal state. At the same time, the support column 709 in the storage groove 708 is rotated around the second damping pivot 710 to a vertical position and in contact with the ground, thereby providing stable support for the seat.

[0031] according to Figures 1-5 As shown, when the seat needs to be folded and stored, the seat plate 705 is rotated and folded in the opposite direction around the first damping pivot 704 through the second handle groove 706. At the same time, the support column 709 is retracted synchronously by the resistance of the second damping pivot 710, so that the support column 709 is stored in the storage groove 708 on the bottom surface of the seat plate 705 to avoid the outward protrusion affecting the folding thickness. By pressing the sliding pin 503, the return spring 502 is compressed and released from the limiting hole 4. Then, the support seat 5 is pushed down by the seat back 701 and the seat plate 705, which drives the sliding shaft 6 to retract along the first guide groove 2. Finally, the entire seat is embedded into the storage compartment 1 and fits against the inner wall to achieve compact storage.

[0032] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable chair, comprising a storage compartment (1) and a support base (5), characterized in that: The inner wall of the storage compartment (1) is provided with a first guide groove (2) and a second guide groove (3). The first guide groove (2) and the second guide groove (3) do not intersect each other. The inner wall of the storage compartment (1) is symmetrically provided with limiting holes (4). The limiting holes (4) are connected to the first guide groove (2). The support base (5) is slidably connected to the inner wall of the storage compartment (1). A sliding shaft (6) is fixedly connected to the side of the support base (5).

2. A foldable seat according to claim 1, characterized in that: The first guide groove (2) is symmetrically distributed in the storage compartment (1), the second guide groove (3) is symmetrically distributed in the storage compartment (1), the sliding shaft (6) is symmetrically distributed on the support base (5), and the sliding shaft (6) is slidably connected to the second guide groove (3).

3. A foldable seat according to claim 1, characterized in that: The support base (5) has a sliding groove (501) on its side. The sliding groove (501) is symmetrically distributed on the support base (5). A return spring (502) is fixedly connected to the inner wall of the sliding groove (501). A sliding pin (503) is fixedly connected to the end of the return spring (502). The sliding pin (503) is slidably connected to the sliding groove (501), slidably connected to the first guide groove (2), and slidably connected to the limiting hole (4).

4. A foldable seat according to claim 1, characterized in that: A seat back (701) is welded and fixed to the top surface of the support base (5) near the first guide groove (2). A cushion (702) is fixedly connected to the side of the seat back (701). A first handle groove (703) is opened on the side of the seat back (701).

5. A foldable seat according to claim 1, characterized in that: The inner side of the support base (5) is rotatably connected to a first damping shaft (704). The first damping shaft (704) is symmetrically distributed on the support base (5). The end of the first damping shaft (704) is fixedly connected to a seat plate (705). The seat plate (705) is rotatably connected to the inner side of the support base (5).

6. A foldable seat according to claim 5, characterized in that: The bottom surface of the seat plate (705) is provided with a second handle groove (706), the top surface of the seat plate (705) is fixedly connected with a seat cushion (707), and the bottom surface of the seat plate (705) is provided with a storage groove (708), which is symmetrically distributed on the seat plate (705).

7. A foldable seat according to claim 6, characterized in that: The inner wall of the storage groove (708) is rotatably connected to a support column (709), and the inner wall of the storage groove (708) is fixedly connected to a second damping shaft (710). The support column (709) is located on the outside of the second damping shaft (710), and the second damping shaft (710) passes through the support column (709).

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