Multi-user folding seat integrated with sleeping berth function

Abstract

The utility model discloses a multi-user folding seat integrated with a sleeping berth function. The multi-user folding seat comprises a multi-user backrest and a multi-user cushion, the bottom end of the multi-user backrest is connected with the rear end of the multi-user cushion through a rotating shaft bracket, and is fixed on the vehicle body vertical plate through the rotating shaft bracket; a backrest lock is arranged on the multi-person backrest, a lock hook device corresponding to the backrest lock is arranged on the vehicle body vertical plate, and whether the multi-person backrest is put down and unlocked or not is achieved by locking or not locking the backrest lock and the lock hook device; a sliding supporting device is arranged at the bottom of the multi-user cushion, and after the multi-user cushion is lifted, angle fixation is achieved through the sliding supporting device. In the seat mode, the sliding supporting device can lift the cushion to keep the cushion at a certain angle, and passengers can conveniently store luggage on the lower portion of the seat. In the sleeping berth mode, the unlocking device is operated to eject a lock hook of the lock hook device open to enable the backrest to be placed, people can lie on the backrest, and a synchronous torsion spring is arranged to provide an assisting and buffering effect in the process of interchanging the seat mode and the sleeping berth mode.

Description

Technical Field

[0001] This utility model relates to the field of rail transit seating, and in particular to a multi-person folding seat with integrated sleeper function. Background Technology

[0002] In recent years, with the development of railways and the expansion of overseas markets, as well as the increasing demands of passengers for cabin environment and seat functionality during travel, most seats on existing rail vehicles can no longer meet market requirements. Most lack folding and reclining functions, are not only functionally limited but also occupy significant carriage space. For long-distance travelers, most rail vehicle seats cannot meet their needs for rest space and functionality at night, and disassembling seats is time-consuming, labor-intensive, and costly. Summary of the Invention

[0003] Purpose of the utility model: In order to overcome the shortcomings of the prior art, this utility model discloses a multi-person folding seat with integrated sleeper function.

[0004] Technical solution: The multi-person folding seat with integrated sleeper function described in this utility model includes a multi-person backrest and a multi-person seat cushion; the bottom end of the multi-person backrest and the rear end of the multi-person seat cushion are connected by a pivot bracket and fixed to the upright plate of the vehicle body by the pivot bracket.

[0005] The multi-person backrest is equipped with a backrest lock, and the vehicle body upright is equipped with a locking hook device corresponding to the backrest lock. The locking or unlocking of the multi-person backrest can be achieved by whether the backrest lock and the locking hook device are locked.

[0006] The bottom of the multi-person seat cushion is equipped with a sliding support device, which fixes the angle after the multi-person seat cushion is raised.

[0007] Furthermore, a multi-person backrest is also fixed to the upright plate of the vehicle body, and the multi-person backrest is located above the multi-person backrest.

[0008] Furthermore, the backrest lock includes a lock case, an unlocking handle, a lock body, a push rod, a push rod spring, and a locking stop. The lock case is embedded inside the multi-person backrest. The unlocking handle is placed inside the lock case and connected by a pivot. The two sides of the pivot are the handle end and the drive end, respectively. The lock body is placed inside the unlocking handle. Locking and unlocking between the unlocking handle and the lock case are achieved by rotating the lock body. The push rod is vertically inserted into the lock case, and its bottom is connected to the multi-person drive end of the unlocking handle. Pulling the handle end can lift the push rod. The push rod is provided with a limiting ring, and a push rod spring is sleeved above the limiting ring. The locking stop is fixed to the top of the multi-person backrest. A limiting groove is opened on the upper surface of the locking stop, and a through hole is provided in the groove. The push rod passes through the through hole from the bottom. The upper end of the push rod spring abuts against the lower surface of the locking stop. Under the drive of the unlocking handle, the push rod extends or retracts in the through hole.

[0009] Furthermore, the locking hook device includes a locking hook seat fixed to the upright plate of the vehicle body. The locking hook seat is connected to a locking hook via a locking hook torsion spring. The hook body of the locking hook faces downward and corresponds to the upper end of the push rod. Under the action of the locking hook torsion spring, it forms a downward rotation trend. After the backrest of the multi-person chair is raised, it squeezes the hook body, causing the hook body to fall into the limiting groove of the locking position to form a lock. The push rod is raised to push the locking hook to unlock.

[0010] Furthermore, the multi-person seat cushion and the multi-person backrest are equipped with corresponding latches on the side. After the multi-person backrest is folded down, the multi-person backrest and the multi-person seat cushion are locked by the latches.

[0011] Furthermore, the sliding support device is a telescopic support structure, including a slide rail rod and a slider rod. The slide rail rod has a limiting notch on its side. The slider rod is placed inside the slide rail rod and is provided with a rotation limiting plate. The relative displacement of the slider rod and the slide rail rod determines whether the rotation limiting plate is triggered. When the rotation limiting plate is triggered, it is located at the limiting notch, thus fixing the position of the slide rail rod and the slider rod.

[0012] Furthermore, the top of the slide rail is fixedly connected to the multi-person seat cushion via a pivot, and the bottom of the slider is detachably connected to the vehicle body floor screw via a pivot. The multi-person seat cushion is also provided with a screw hole for fixing to the bottom of the slider. When the slider is retracted, it is fixedly stored on the multi-person seat cushion through the screw hole.

[0013] Furthermore, the pivot of the pivot bracket is equipped with a synchronous torsion spring that drives multiple people to lift their backs.

[0014] Beneficial effects: Compared with the prior art, the advantages of this utility model are: In seat mode, the seat cushion can be raised and held at a certain angle by the sliding support device, which makes it convenient for passengers to store their luggage under the seat; In sleeper mode, the backrest can be lowered by operating the unlocking device to open the locking hook of the locking hook device, so that people can lie down. The synchronous torsion spring provides a cushioning effect during the switching between seat mode and sleeper mode. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the seat configuration of this utility model;

[0016] Figure 2 This is a schematic diagram of the synchronous torsion spring structure of this utility model;

[0017] Figure 3 This is a diagram showing the split structure of the backrest lock of this utility model;

[0018] Figure 4 This is a cross-sectional view of the backrest lock of this utility model;

[0019] Figure 5This is a structural diagram of the locking hook device of this utility model;

[0020] Figure 6 This is a schematic diagram of the sleeper berth mode of this utility model;

[0021] Figure 7 This is a schematic diagram of the lifting of the multi-person seat cushion of this utility model. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 and 2 The multi-person folding seat with integrated sleeper function shown includes a multi-person backrest 1 and a multi-person seat cushion 2; the bottom end of the multi-person backrest 1 is connected to the rear end of the multi-person seat cushion 2 through a pivot bracket 3, and is fixed to the vehicle body upright plate through the pivot bracket 3. The pivot bracket 3 is provided with a synchronous torsion spring 3-1 that drives the multi-person backrest 1 to be lifted. A multi-person headrest 4 is also fixed on the vehicle body upright plate, and the multi-person headrest 4 is located above the multi-person backrest 1.

[0024] The multi-person backrest 1 is equipped with a backrest lock 5, and the vehicle body upright is equipped with a locking hook device 6 corresponding to the backrest lock 5. Whether the backrest lock 5 and the locking hook device 6 are locked or not can realize whether the multi-person backrest 1 can be folded down or unlocked.

[0025] like Figure 3-5 As shown, the backrest lock 5 includes a lock housing 501, an unlocking handle 502, a lock body 503, a push rod 504, a push rod spring 505, and a locking stop 506. The lock housing 501 is embedded inside the multi-person backrest 1. The unlocking handle 502 is placed inside the lock housing 501 and connected by a pivot. The two sides of the pivot are the handle end and the drive end, respectively. The lock body 503 is placed inside the unlocking handle 502. Locking and unlocking between the unlocking handle 502 and the lock housing 501 are achieved by rotating the lock body 503. The push rod 504 is vertically inserted into the lock housing 501. Inside, its bottom is connected to the multi-person drive end of the unlocking handle 502. Pulling the handle end can lift the push rod 504. The push rod 504 is provided with a limiting ring, and a push rod spring 505 is sleeved above the limiting ring. The locking stop 506 is fixed to the top of the multi-person backrest. A limiting groove is opened on the upper surface of the locking stop 506, and a through hole is provided in the groove. The push rod 504 passes through the through hole from the bottom. The upper end of the push rod spring 505 abuts against the lower surface of the locking stop 506. Under the drive of the unlocking handle 502, the push rod 504 extends or retracts in the through hole.

[0026] The locking hook device 6 includes a locking hook seat 601 fixed to the upright plate of the vehicle body. The locking hook seat 601 is connected to a locking hook 603 through a locking hook torsion spring 602. The hook body of the locking hook 603 faces downward and corresponds to the upper end of the push rod 504. Under the action of the locking hook torsion spring 602, it forms a downward rotation trend. After the multi-person backrest 1 is raised, it squeezes the hook body so that the hook body falls into the limiting groove of the locking stop 506 to form a lock. The push rod 504 is raised to push the locking hook 603 to unlock.

[0027] like Figure 6 As shown, the multi-person seat cushion 2 and the multi-person backrest 1 are provided with corresponding latch locks 7 on their sides. After the multi-person backrest 1 is folded down, the multi-person backrest 1 and the multi-person seat cushion 2 are locked by the latch locks 7.

[0028] The bottom of the multi-person seat cushion 2 is provided with a sliding support device 8. After the multi-person seat cushion 2 is raised, the angle is fixed by the sliding support device 8.

[0029] like Figure 7 As shown, the sliding support device 8 is a telescopic support structure, including a slide rail rod 801 and a slider rod 802. The slide rail rod 801 has a limiting notch on its side. The slider rod 802 is placed inside the slide rail rod 801 and is provided with a rotation limiting plate. The relative displacement of the slider rod 802 and the slide rail rod 801 determines whether the rotation limiting plate is triggered. When the rotation limiting plate is triggered, it is located at the limiting notch, thus fixing the positions of the slide rail rod 801 and the slider rod 802.

[0030] The top of the slide rail rod 801 is fixedly connected to the multi-person seat cushion 2 via a pivot, and the bottom of the slider rod 802 is detachably connected to the ground screw of the vehicle body via a pivot. The multi-person seat cushion 2 is also provided with a screw hole for fixing to the bottom of the slider rod 802. When the slider rod 802 is retracted, it is fixedly stored on the multi-person seat cushion 2 through the screw hole.

[0031] State 1: Normal seat mode, such as Figure 1 As shown, the locking hook 603 hooks onto the locking stop 506, thereby locking the raised position of the multi-person backrest 1.

[0032] State 2: Seat cushion raised mode, such as Figure 7 As shown, the multi-person seat cushion is raised, and the sliding support device 8 is raised and fixed to the ground of the vehicle body, making it convenient to place items under the seat cushion;

[0033] State 3: Sleeper mode, such as Figure 6 As shown, by rotating the lock body 503 with the key, pulling the unlocking handle 502, lifting the push rod 504 to push up the lock hook 603, lowering the multi-person backrest 1, and locking the multi-person backrest 1 and multi-person seat cushion 2 by the latch lock 7.

Claims

1. A multi-person folding seat with integrated sleeper function, characterized in that, It includes a multi-person backrest (1) and a multi-person seat cushion (2); the bottom end of the multi-person backrest (1) is connected to the rear end of the multi-person seat cushion (2) through a pivot bracket (3), and is fixed to the vehicle body upright plate through the pivot bracket (3); The multi-person backrest (1) is provided with a backrest lock (5), and the vehicle body upright is provided with a locking hook device (6) corresponding to the backrest lock (5). Whether the multi-person backrest (1) can be folded down or unlocked is determined by whether the backrest lock (5) and the locking hook device (6) are locked or not. The bottom of the multi-person seat cushion (2) is provided with a sliding support device (8). After the multi-person seat cushion (2) is raised, the angle is fixed by the sliding support device (8).

2. The multi-person folding seat with integrated sleeper function according to claim 1, characterized in that: The vehicle body upright is also fixed with a multi-person backrest (4), which is located above the multi-person backrest (1).

3. The multi-person folding seat with integrated sleeper function according to claim 1, characterized in that: The backrest lock (5) includes a lock shell (501), an unlocking handle (502), a lock body (503), a push rod (504), a push rod spring (505), and a lock stop (506). The lock shell (501) is embedded inside the multi-person backrest (1). The unlocking handle (502) is placed inside the lock shell (501) and connected by a pivot. The two sides of the pivot are the handle end and the drive end, respectively. The lock body (503) is placed inside the unlocking handle (502). By rotating the lock body (503), the locking and unlocking between the unlocking handle (502) and the lock shell (501) can be achieved. The push rod (504) is vertically inserted into the lock shell. (501) Inside, its bottom is connected to the multi-person drive end of the unlocking handle (502). Pulling the handle end can lift the push rod (504). The push rod (504) is provided with a limiting ring, and a push rod spring (505) is sleeved above the limiting ring. The lock (506) is fixed to the top of the multi-person backrest. The upper surface of the lock (506) is provided with a limiting groove, and a through hole is provided in the groove. The push rod (504) passes through the through hole from the bottom. The upper end of the push rod spring (505) abuts against the lower surface of the lock (506). Under the drive of the unlocking handle (502), the push rod (504) extends or retracts in the through hole.

4. The multi-person folding seat with integrated sleeper function according to claim 3, characterized in that: The locking hook device (6) includes a locking hook seat (601) fixed to the upright plate of the vehicle body. The locking hook seat (601) is connected to a locking hook (603) through a locking hook torsion spring (602). The hook body of the locking hook (603) faces downward and corresponds to the upper end of the push rod (504). Under the action of the locking hook torsion spring (602), it forms a downward rotation trend. After the multi-person backrest (1) is lifted, it squeezes the hook body so that the hook body falls into the limiting groove of the lock (506) to form a lock. The push rod (504) is lifted to push the locking hook (603) to unlock.

5. The multi-person folding seat with integrated sleeper function according to claim 1, characterized in that: The multi-person seat cushion (2) and the multi-person backrest (1) are provided with corresponding buckle locks (7) on their sides. After the multi-person backrest (1) is laid down, the multi-person backrest (1) and the multi-person seat cushion (2) are locked by the buckle locks (7).

6. The multi-person folding seat with integrated sleeper function according to claim 1, characterized in that: The sliding support device (8) is a telescopic support structure, including a slide rail rod (801) and a slider rod (802). The slide rail rod (801) has a limiting notch on its side. The slider rod (802) is placed inside the slide rail rod (801) and is provided with a rotation limiting piece. The relative displacement of the slider rod (802) and the slide rail rod (801) is used to trigger the rotation limiting piece. When the rotation limiting piece is triggered, it is located at the limiting notch, thus fixing the position of the slide rail rod (801) and the slider rod (802).

7. The multi-person folding seat with integrated sleeper function according to claim 6, characterized in that: The top of the slide rail rod (801) is fixedly connected to the multi-person seat cushion (2) via a pivot, and the bottom of the slider rod (802) is detachably connected to the ground screw of the vehicle body via a pivot. The multi-person seat cushion (2) is also provided with a screw hole for fixing to the bottom of the slider rod (802). When the slider rod (802) is retracted, it is fixedly stored on the multi-person seat cushion (2) through the screw hole.

8. The multi-person folding seat with integrated sleeper function according to claim 1, characterized in that: The pivot of the pivot bracket (3) is provided with a synchronous torsion spring (3-1) that drives multiple people to lift the backrest (1).

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