Car seat locking device

Abstract

This application relates to a car seat locking device, which is mounted on the seat cushion frame of the front and / or rear seats of a car. The left and right sides of the seat cushion frame are respectively hinged to the corresponding left and right seat cushion support plates. The rear sides of the left and right seat cushion support plates are connected by a rear crossbar. The locking device includes a locking housing mounted on the rear side of the seat cushion frame and a locking tongue. The locking tongue is hinged to the locking housing. A locking buckle is provided on the rear crossbar at a position corresponding to the locking device and is locked with the locking tongue. This application allows the front seats of a car to be stored without affecting the adjustment of the car seat.

Description

Technical Field

[0001] The present application relates to the field of automobile seat adjustment devices, and in particular to an automobile seat locking device. Background Art

[0002] Cars have become an essential means of transportation in people's lives. In order to facilitate the placement of items in car seats, some car seats have begun to be designed with storage functions under them. This makes it convenient to place items in them by flipping the seat cushion.

[0003] At present, many rear seats of cars use a floor lock structure to lock the seat cushion, that is, the rear seat cushion is flipped by using a ground anchor bracket and an internal hinged connection with the vehicle.

[0004] With regard to the above-mentioned existing solutions, the inventor believes that the improvements to increase storage space under the seats in cars are basically concentrated on the rear seats. As for the front seats, considering that the front seats are often adjusted by the driver and passengers and the height is constantly adjusted according to driving needs, the front seats are rarely used for storage. Summary of the Invention

[0005] In order to enable storage in the front seats of a car without affecting the adjustment of the car seats, the present application provides a car seat locking device.

[0006] This application provides a car seat locking device, which adopts the following technical solution:

[0007] A car seat locking device is installed on the seat cushion frame of the front and / or rear seats of the car, the left and right sides of the seat cushion frame are respectively hinged to the corresponding seat cushion support plates on the left and right sides, and the rear sides of the left and right seat cushion support plates are connected by a rear cross bar; the locking device includes a locking shell and a locking tongue installed on the rear side of the seat cushion frame, the locking tongue is hinged to the locking shell, and a locking buckle is provided on the rear cross bar at a position corresponding to the locking device, which cooperates with the locking tongue to lock.

[0008] Optionally, the locking shell includes locking limit plates located on the left and right sides and a locking shift plate located on the upper side, and the upper sides of the two locking limit plates are connected through the locking shift plate.

[0009] Optionally, an arc-shaped notch is provided on the front side of the locking limit plate, the locking limit plate abuts against the rear cross bar of the seat cushion frame, and the arc-shaped notch is adapted to the rear cross bar.

[0010] Optionally, an anti-dropout protection plate is provided extending downward from the rear side of the locking limit plate, and an auxiliary guide groove is provided on the lower side of the locking limit plate and close to the anti-dropout protection plate.

[0011] Optionally, the locking shift plate has an inverted V-shaped structure.

[0012] Optionally, the locking tongue includes a locking tongue limiting plate located on the left and right sides and a locking tongue connecting plate located on the lower side, and the lower sides of the two locking tongue limiting plates are connected by the locking tongue connecting plate.

[0013] Optionally, a locking groove is provided in the middle of the front side of the lock tongue limiting plate, and the lock tongue connecting plate is provided with a curved adaptation section at the locking groove.

[0014] Optionally, a limiting slot is provided on the rear side of the locking shift plate, and a stop block is provided on the lock tongue connecting plate near the bent adaptation section, the stop block is close to one of the lock tongue limiting plates and has a certain distance between the stop block and the lock tongue limiting plate; a torsion spring is sleeved on the hinge axis of the locking tongue and the locking shell, one end of the torsion spring is clamped in the limiting slot, and the other end is pressed on the lock tongue connecting plate between the stop block and the lock tongue limiting plate.

[0015] Optionally, the locking buckle has a U-shaped structure, and both rear end portions of the locking buckle are bent upward.

[0016] Optionally, connecting arms are hinged at the front sides of the left and right seat cushion support plates, respectively, and one end of the connecting arm away from the seat cushion support plate is fixedly connected to the seat cushion frame.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. The left and right sides of the seat cushion frame are respectively hinged to the corresponding seat cushion support plates on the left and right sides to form a hinged support structure that can be flipped forward and backward. The seat cushion is locked by a locking device, so that this design can be flexibly applied to the front and / or rear seats, allowing the front seats of the car to also realize storage functions without affecting the adjustment function of the car seats.

[0019] 2. By setting the locking shell and locking tongue structure, the installation of the locking device can be made simpler and more stable. At the same time, it can ensure that the locking is more secure and reliable, which has a double guarantee. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a car seat locking device according to an embodiment of the present application.

[0021] Figure 2 It is a structural schematic diagram of the locking device installation part of a car seat locking device according to an embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of the exploded structure of a locking device and a locking buckle of a car seat locking device according to an embodiment of the present application.

[0023] Explanation of the accompanying drawings: 1. Seat cushion frame; 2. Seat cushion support plate; 3. Rear cross bar; 4. Connecting arm; 5. Locking shell; 6. Locking tongue; 7. Locking buckle; 8. Locking limit plate; 9. Locking stop plate; 10. Arc-shaped notch; 11. Rear cross bar; 12. Anti-slip protection plate; 13. Auxiliary guide groove; 14. Lock tongue limit plate; 15. Lock tongue connecting plate; 16. Card slot; 17. Block; 18. Torsion spring; 19. Limiting card slot. DETAILED DESCRIPTION

[0024] The following is combined with Figures 1 to 3 This application is described in further detail.

[0025] The embodiment of the present application discloses a car seat locking device. Figure 1 The locking device is installed on the seat cushion frame 1 of the front and / or rear seats of the car. The left and right sides of the seat cushion frame 1 are respectively hinged to the corresponding seat cushion support plates 2 on the left and right sides, and the rear sides of the seat cushion support plates 2 on the left and right sides are connected by a rear cross bar 3; connecting arms 4 are hinged at the front positions of the left and right seat cushion support plates 2, and one end of the connecting arm 4 away from the seat cushion support plate 2 is fixedly connected to the seat cushion frame 1. Through this hinge structure, the flipping of the seat cushion no longer relies on the hinge of the traditional anchor bracket, but the seat cushion frame 1 itself is hinged to the seat cushion support plate 2 through the connecting arm 4, and the seat cushion support plate 2 can be installed on the seat adjustment device. This makes the structural layout more reasonable, and whether it is the rear seat or the front seat, it makes it possible to expand the space under the seat cushion.

[0026] In this embodiment, refer to Figure 2 The locking device includes a locking shell 5 and a locking tongue 6 installed on the rear side of the seat cushion frame 1. The locking tongue 6 is hinged to the locking shell 5. A locking buckle 7 that cooperates with the locking tongue 6 to lock is provided at a position corresponding to the locking device on the rear cross bar 3. The locking buckle 7 has a U-shaped structure, and the two rear end portions of the locking buckle 7 are bent upward and welded to the rear cross bar 3 at the bending position. On the one hand, it simplifies the structure and reduces the weight of the seat itself. On the other hand, it does not affect the overall locking work.

[0027] Reference Figure 3The locking shell 5 includes locking limit plates 8 on the left and right sides and a locking stop plate 9 on the upper side. The upper sides of the two locking limit plates 8 are connected by the locking stop plate 9; wherein, the front side of the locking limit plate 8 is provided with an arc-shaped notch 10, and the locking limit plate 8 abuts against the rear cross bar 11 of the seat cushion frame 1, and the arc-shaped notch 10 is adapted to the rear cross bar 11. After the locking limit plate 8 abuts and the arc-shaped notch 10 is adapted firmly, it can be fixed by welding, reducing the use of redundant spare parts. In addition, in order to have multiple protections after locking and when the seat shakes or hits, the locking structure has multiple protections, so that the locking buckle 7 will not be directly separated from the lock tongue without double protection. An anti-slip protection plate 12 is extended downward from the rear side of the plate 8, and an auxiliary guide groove 13 is provided on the lower side of the locking limit plate 8 and close to the anti-slip protection plate 12. The auxiliary guide groove 13 can, on the one hand, guide the locking buckle 7 to quickly engage during the locking process, and on the other hand, it can play a secondary anti-slip effect after the lock tongue fails, so that the seat cushion will not be directly flipped over due to the failure of the locking device, causing unnecessary harm to the driver and passengers. At the same time, in order to make the locking shell 5 better adapt to the requirements of the zero-gravity seat, and to limit the height of the locking shell 5 as much as possible, so that the overall height of the seat cushion will not be increased due to the addition of the locking device, the locking shift plate 9 can be made into an inverted V-shaped structure.

[0028] In this embodiment, the locking tongue 6 includes a locking tongue limiting plate 14 located on the left and right sides and a locking tongue connecting plate 15 located on the lower side, and the lower sides of the two locking tongue limiting plates 14 are connected by the locking tongue connecting plate 15; wherein, a locking groove 16 is provided in the middle of the front side of the locking tongue limiting plate 14, and the locking tongue connecting plate 15 is provided with a curved adaptation section at the locking groove 16, and a limiting slot 19 is provided on the rear side of the locking stop plate 9, and a stopper 17 is provided on the locking tongue connecting plate 15 near the curved adaptation section, and the stopper 17 is close to one of the locking tongue limiting plates 14 and has a certain distance between it and the locking tongue limiting plate 14; a torsion spring 18 is sleeved on the hinge axis of the locking tongue 6 and the locking shell 5, one end of the torsion spring 18 is clamped in the limiting slot 19, and the other end is pressed on the locking tongue connecting plate 15 between the stopper 17 and the locking tongue limiting plate 14. This design can make the locking device more stable and effectively control the noise of the product during use.

[0029] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A car seat locking device, characterized in that: A seat cushion frame (1) is installed on the front row or / and rear row of seats in a car, the left and right sides of the seat cushion frame (1) are respectively hinged to the corresponding seat cushion support plates (2) on the left and right sides, and the rear sides of the seat cushion support plates (2) on the left and right sides are connected through a rear cross bar (3); a locking device comprises a locking shell (5) and a locking tongue (6) installed on the rear side of the seat cushion frame (1), the locking tongue (6) is hinged to the locking shell (5), and a locking buckle (7) for locking with the locking tongue (6) is provided at a position corresponding to the locking device on the rear cross bar (3); the locking shell (5) comprises locking limiters located on the left and right sides The seat frame (1) comprises a seat frame (8) and a locking stop plate (9) located on the upper side, and the upper side edges of the two locking limit plates (8) are connected through the locking stop plate (9); an arc-shaped notch (10) is provided on the front side of the locking limit plate (8), the locking limit plate (8) abuts against the rear cross bar (11) of the seat frame (1), and the arc-shaped notch (10) is adapted to the rear cross bar (11); an anti-slip protection plate (12) is provided at the rear side of the locking limit plate (8), and an auxiliary guide groove (13) is provided on the lower side of the locking limit plate (8) and close to the anti-slip protection plate (12).

2. The car seat locking device according to claim 1, characterized in that: The locking plate (9) is in an inverted V-shaped structure.

3. The car seat locking device according to claim 1, characterized in that: The locking tongue (6) comprises a locking tongue limiting plate (14) located on the left and right sides and a locking tongue connecting plate (15) located on the lower side, and the lower sides of the two locking tongue limiting plates (14) are connected through the locking tongue connecting plate (15).

4. The car seat locking device according to claim 3, characterized in that: A locking groove (16) is provided in the middle of the front side of the locking tongue limiting plate (14), and a bent adapting section is provided on the locking tongue connecting plate (15) at the locking groove (16).

5. The car seat locking device according to claim 4, characterized in that: A limiting slot (19) is provided on the rear side of the locking stop plate (9); a stopper (17) is provided on the locking tongue connecting plate (15) near the bent adapting section; the stopper (17) is close to one of the locking tongue limiting plates (14) and has a certain interval with the locking tongue limiting plate (14); a torsion spring (18) is sleeved on the hinge shaft between the locking tongue (6) and the locking shell (5); one end of the torsion spring (18) is clamped in the limiting slot (19), and the other end is pressed on the locking tongue connecting plate (15) between the stopper (17) and the locking tongue limiting plate (14).

6. The car seat locking device according to claim 5, characterized in that: The locking buckle (7) is in a U-shaped structure, and the two rear end portions of the locking buckle (7) are bent upward.

7. The car seat locking device according to claim 1, characterized in that: Connecting arms (4) are hinged at the front sides of the left and right cushion support plates (2), respectively. One end of the connecting arm (4) away from the cushion support plate (2) is fixedly connected to the cushion frame (1).

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