Escape device for a car seat and method of use thereof

Abstract

The application provides an escape device of a car seat and a use method thereof, and belongs to the technical field of car seats. The escape device of the car seat solves the problem that the existing car seat cannot quickly increase the escape space. The escape device of the car seat comprises a base, a seat frame, a boost torsional spring, a driving assembly, a connecting plate and a connecting rod assembly. In the application, when an emergency occurs and the passengers in the rear row of the seat need to escape, the passengers in the rear row of the seat need to pull the connecting rod assembly, so that the connecting rod assembly is separated from the driving assembly, that is, the seat frame is separated from the driving assembly. At the same time, the seat is subjected to the elastic force of the boost torsional spring, so that the seat frame is quickly rotated around the connection between the seat frame and the base, that is, the seat frame is moved forward relative to the base by a certain distance, so that the space in the rear row of the seat is quickly increased, that is, the escape space of the passengers in the rear row is quickly increased. In addition, it is convenient for people to operate.

Description

Technical Field

[0001] This invention belongs to the field of automotive seat technology and relates to an escape device for an automotive seat and its usage method. Background Technology

[0002] As cars optimize their internal structure and functions, their features become increasingly diverse. This is especially true in the area of ​​car seats. To facilitate seat adjustments, buttons are often used, where pressing or flipping a button activates a motor located beneath the seat to drive the adjustment. However, in an emergency, when people need to escape, they must quickly adjust the seat to increase escape space. At this time, the motor remains connected to the seat. If the motor loses power or becomes damaged, the seat cannot be moved, thus failing to quickly increase the escape space for rear passengers. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an escape device for a car seat that can rapidly increase escape space, and a method for using it.

[0004] The objective of this invention can be achieved through the following technical solution: an escape device for a car seat and its method of use, comprising:

[0005] Base;

[0006] A seat frame, one end of which is hinged to a base, the base being provided with an assisting torsion spring for resetting the seat frame, and a drive assembly for driving the seat frame to rotate relative to the base being installed on the base.

[0007] A connecting plate is hinged to the base frame, and a connecting rod assembly is movably mounted on the connecting plate. The connecting rod assembly can be engaged with the drive assembly. When the connecting rod assembly is separated from the drive assembly, the base frame moves relative to the base under the action of the assist torsion spring.

[0008] In the aforementioned escape device for a car seat, the linkage assembly includes a through shaft that moves through a connecting plate. A lever and a locking plate are mounted on the through shaft. The lever and the locking plate are located on opposite sides of the connecting plate. When the lever rotates about the through shaft, the locking plate and the through shaft will rotate synchronously.

[0009] In the aforementioned escape device for a car seat, the end of the card plate away from the through shaft is provided with a card block that engages with the drive assembly.

[0010] In the aforementioned escape device for a car seat, a pull rod is provided at the end of the lever away from the through shaft, a pull block is movably mounted on the pull rod, a rope is connected to the pull block, a pull head is provided at one end of the rope, and a clamp for locking the pull head is provided on the connecting plate.

[0011] In the aforementioned escape device for a car seat, a return torsion spring is installed at one end of the through-shaft, and one end of the return torsion spring is connected to the connecting plate.

[0012] In the aforementioned escape device for a car seat, the base is provided with a pair of base frames, one of which is equipped with the drive assembly. One end of the base frame is hinged to one end of the seat frame. The drive assembly includes a reducer mounted on the base frame, a motor mounted on the reducer, and a gear mounted on the reducer. A gear plate meshing with the gear is provided inside the base frame.

[0013] In the above-mentioned escape device for a car seat, the edge of the toothed plate is provided with a rack that meshes with a gear, the toothed plate is provided with a slot for locking a locking block, and the base frame is provided with a rotating shaft for mounting the toothed plate, the rotating shaft moving through one end of the connecting plate.

[0014] In the aforementioned escape device for a car seat, both ends of the seat frame are hinged to the corresponding base frame via triangular plates, and a crossbar is connected between the two triangular plates. The assist torsion spring is connected to the crossbar.

[0015] In the above-mentioned escape device for a car seat, the triangular plate has a first end, a second end, and a third end. The first end has a first connecting hole for connecting to the base frame, the second end has a second connecting hole for connecting to the end of the seat frame, and the crossbar is connected to the third end.

[0016] A method for using an escape device for a car seat includes the following steps:

[0017] Step S1: Pull the pull head so that the rope drives the pull block, the lever plate, and the clamping plate to rotate around the central axis of the through shaft;

[0018] Step S2: When the locking block separates from the toothed plate, the connecting rod assembly separates from the drive assembly. At the same time, the seat frame is subjected to the elastic force of the assist torsion spring, and the seat frame moves relative to the base.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this invention, when an emergency occurs and passengers in the rear seats need to escape, they need to pull the linkage assembly to separate the linkage assembly from the drive assembly, that is, to separate the seat frame from the drive assembly. At the same time, the seat will be subjected to the elastic force of the assist torsion spring, causing the seat frame to rotate rapidly around the connection between the seat frame and the base, that is, to move the seat frame forward a certain distance relative to the base, thereby quickly increasing the rear space of the seat, that is, quickly increasing the escape space for rear passengers; secondly, it is also convenient for people to operate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0022] Figure 2 It is an assembly diagram of the drive assembly, linkage assembly, and base frame.

[0023] Figure 3 This is a structural schematic diagram of the linkage assembly.

[0024] Figure 4 This is a schematic diagram of the toothed plate.

[0025] Figure 5 This is a diagram showing the state of a car seat after the drive assembly and linkage assembly have been separated. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] like Figure 1 — Figure 5 As shown, an escape device for a car seat according to the present invention includes a base 100, a seat frame 200, a power assist torsion spring 110, a drive assembly 300, a connecting plate 210, and a linkage assembly 400.

[0028] One end of the seat frame 200 is hinged to a base 100. A torsion spring 110 for resetting the seat frame 200 is provided on the base 100. A drive assembly 300 for rotating the seat frame 200 relative to the base 100 is mounted on the base 100. A connecting plate 210 is hinged to the seat frame 200. Specifically, the connecting plate 210 and the seat frame 200 are hinged via a movable shaft 220. A connecting rod assembly 400 is movably mounted on the connecting plate 210. This connecting rod assembly 400 can engage with the drive assembly 300. In case of an emergency, the rear passenger... When an escape is needed, passengers in the rear seats need to pull the linkage assembly 400 to separate the linkage assembly 400 from the drive assembly 300. That is, the seat frame 200 is separated from the drive assembly 300. At the same time, the seat will be subjected to the elastic force of the assist torsion spring 110, causing the seat frame 200 to move quickly around the connection between the seat frame 200 and the base 100. That is, the seat frame moves forward a certain distance relative to the base, thereby increasing the rear space of the seat, which effectively increases the escape space for rear passengers. Secondly, it is also convenient for people to operate.

[0029] The linkage assembly 400 includes a through shaft 410 that movably passes through the connecting plate 210. A lever plate 420 and a locking plate 430 are mounted on the through shaft 410, located on opposite sides of the connecting plate 210. The locking plate 430 has a locking block 431 at its end away from the through shaft 410, which engages with the drive assembly 300. A pull rod 421 is provided at the end of the lever plate 421 away from the through shaft 410. A pull block 422 is movably mounted on the pull rod 421. A rope 423 is connected, and one end of the rope 423 is provided with a pull head 424. When a person pulls the pull head 424, the rope 423 will drive the locking block 431 to move. Since the pull head 424 is movably installed on the lever 420 through the lever 421, and both the lever 420 and the locking plate 430 are installed on the through shaft 410, and both will rotate synchronously with the through shaft 410, so that the locking plate 430 will also rotate synchronously with the lever 420. In this way, the locking block 431 can be separated from the drive assembly 300.

[0030] When the locking plate 430 rotates away from the drive assembly 300 around the through shaft 410, a return torsion spring 440 is installed at one end of the through shaft 410. One end of the return torsion spring 440 is connected to the connecting plate 210, so that the return torsion spring 440 is subjected to force and generates elastic force. Therefore, when the force on the pull head 424 is removed, the return torsion spring 440 will cause the through shaft 410 to rotate in the opposite direction, so that the locking block 431 moves towards the drive assembly 300 until the locking block 431 contacts the drive assembly 300 again. After that, the drive assembly 300 is operated so that the locking block 431 engages with the drive assembly 300 again. Thus, the drive assembly 300, the connecting rod assembly 400, the connecting plate 210 and the seat frame 200 can be integrated into a whole. In this way, the drive assembly 300 can drive the seat frame 200 to rotate relative to the base 100, thereby achieving the purpose of electrically adjusting the seat.

[0031] The connecting plate 210 is provided with a clamping plate 211 for locking the pull head 424. When the escape function of the car seat is not used, the pull head 424 can be locked in the groove (not marked in the figure) of the clamping plate 211, so that when people need the escape function of the seat, they can quickly find the pull head 424, thereby achieving a rapid response effect.

[0032] A pair of base frames 120 are provided on the base 100. The drive assembly 300 is mounted on one of the base frames 120. One end of the base frame 120 is hinged to one end of the base frame 200. The drive assembly 300 includes a reducer 310 mounted on the base frame 120. A motor 320 is provided on the reducer 310. A gear 330 is also provided on the reducer 310. A gear plate 340 meshing with the gear 330 is provided inside the base frame 120. A rack 341 meshing with the gear 330 is provided at the edge of the gear plate 340. The gear plate 340 has openings for... The base frame 120 has a locking slot 342 for locking block 431. A rotating shaft 121 for mounting the toothed plate 340 is provided on the base frame 120. The rotating shaft 121 movably passes through one end of the connecting plate 210. When the seat is in normal use, the locking block 431 engages with the locking slot 342 of the toothed plate 340, and the two sides of the locking block 431 are flush with the inner walls of the locking slot 342, thus connecting the locking block 431 to the toothed plate 340. When adjusting the seat, the user needs to operate the motor 320, which drives the gear 330 to rotate via the reducer 310. The rack 34 on the toothed plate 340... 1. Gear 330 meshes with gear plate 340, allowing gear 330 to drive gear plate 340 to rotate, thereby enabling gear plate 340 to clamp and rotate block 431. Through shaft 410 passes through connecting plate 210, causing connecting plate 210 to rotate around shaft 121. During this process, connecting plate 210 and base 200 are hinged via movable shaft 220, allowing connecting plate 210 to drive base 200 to rotate away from base 100 via movable shaft 220, facilitating adjustment. When block 431 separates from gear plate 340, i.e., when base 200 and drive... When component 300 is separated, the seat frame 200 is only subjected to the elastic force of the assist torsion spring 110, so that the seat frame rotates around the pivot via the movable shaft and the connecting plate. When the connecting plate rotates to a predetermined angle, the assist torsion spring will no longer drive the seat frame to move relative to the base. That is, the seat frame moves forward relative to the base, thereby achieving a rapid response of the seat frame 200 and thus quickly increasing the escape space for rear passengers. In addition to the elastic force of the assist spring, the rear passengers can also push the seat frame forward relative to the base to achieve a faster forward movement of the seat frame relative to the base.

[0033] Both ends of the seat frame 200 are hinged to the corresponding base frame 120 via triangular plates 130. A crossbar 133a connects the two triangular plates 130. The assisting torsion spring 110 is connected to the crossbar 133a. The triangular plate 130 has a first end 131, a second end 132, and a third end 133. The first end 131 has a first connecting hole 131a for connecting to the base frame 120. The second end 132 has a second connecting hole 132a for connecting to the end of the seat frame 200. The crossbar 133a is connected to the third end 133. When the drive assembly 300 adjusts the seat frame 200, the triangular plate 130 rotates around the central axis of the first connecting hole 131a, so that the crossbar... 133a rotates around the central axis of the first connecting hole 131a, while the seat frame 200 also rotates around the central axis of the second connecting hole 132a. During this process, the assisting torsion spring 110 is always stretched, and there is elasticity between the crossbar and the base. When the drive assembly 300 separates from the connecting rod assembly 400, the crossbar 133a is subjected to the elastic force of the assisting torsion spring 110, so that the crossbar and the triangular plate 130 rotate around the central axis of the first connecting hole 131a at the same time, thereby realizing that the triangular plate 130 drives the seat frame 200 to move away from the drive assembly. When the assisting torsion spring loses its elasticity or the crossbar is blocked by the base, it means that the seat frame has completed the forward movement, that is, the expansion effect of the rear space of the seat is completed.

[0034] The following is a method for using an escape device for a car seat, including the following steps:

[0035] Step S1: When rear passengers encounter an emergency and need to escape, they only need to pull the pull head 424. The rope 423 will drive the locking block 431 to move. Since the pull head 424 is movably installed on the lever 420 through the lever 421, and both the lever and the locking plate 430 are installed on the through shaft 410, and both will rotate synchronously with the through shaft 410, so that the locking plate 430 will also rotate synchronously with the lever 420. In this way, the locking block 431 can be separated from the toothed plate 340 of the drive assembly 300.

[0036] Step S2: When the locking block 431 separates from the toothed plate 340, the connecting rod assembly separates from the drive assembly, that is, when the seat frame 200 separates from the drive assembly 300, the seat frame 200 will only be subjected to the elastic force of the assist torsion spring 110, so that the seat frame rotates around the pivot through the movable shaft and the connecting plate. When the connecting plate rotates to a predetermined angle, the assist torsion spring will no longer drive the seat frame to move relative to the base. That is, the forward movement of the seat frame relative to the base is completed, thereby realizing the rapid response of the seat frame 200, and thus rapidly increasing the escape space for passengers in the rear seats.

[0037] By using the car seat as described above, the escape space at the seat can be quickly expanded to facilitate people's escape.

[0038] Furthermore, the shape and size of the frame and base can be adapted to the actual situation.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0040] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. An escape device for a car seat, characterized in that, include: Base; A seat frame, one end of which is hinged to a base, the base being provided with an assisting torsion spring for resetting the seat frame, and a drive assembly for driving the seat frame to rotate relative to the base being installed on the base. A connecting plate is hinged to the base frame. A connecting rod assembly is movably mounted on the connecting plate. The connecting rod assembly can be engaged with the drive assembly. When the connecting rod assembly is separated from the drive assembly, the base frame moves relative to the base under the action of the assist torsion spring. The linkage assembly includes a through shaft that moves through the connecting plate. A lever plate and a locking plate are mounted on the through shaft. The lever plate and the locking plate are located on opposite sides of the connecting plate. When the lever plate rotates about the through shaft, the locking plate and the through shaft will rotate synchronously. The end of the card plate away from the through shaft is provided with a card block that engages with the drive assembly; Both ends of the seat frame are hinged to the corresponding base frame by triangular plates, and a crossbar is connected between the two triangular plates. The assisting torsion spring is connected to the crossbar. The triangular plate has a first end, a second end, and a third end. The first end has a first connecting hole for connecting to the base frame, the second end has a second connecting hole for connecting to the end of the seat frame, and the crossbar is connected to the third end.

2. The escape device for a car seat as described in claim 1, characterized in that, The end of the lever away from the through shaft is provided with a pull rod, a pull block is movably installed on the pull rod, a rope is connected to the pull block, one end of the rope is provided with a pull head, and a clamp for locking the pull head is provided on the connecting plate.

3. The escape device for a car seat as described in claim 1, characterized in that, A reset torsion spring is installed at one end of the through shaft, and one end of the reset torsion spring is connected to the connecting plate.

4. The escape device for a car seat as described in claim 1, characterized in that, The base is provided with a pair of base frames, one of which is equipped with the drive assembly. One end of the base frame is hinged to one end of the seat frame. The drive assembly includes a reducer mounted on the base frame, a motor mounted on the reducer, and a gear mounted on the reducer. The base frame is provided with a gear plate that meshes with the gear.

5. An escape device for a car seat as described in claim 4, characterized in that, The edge of the toothed plate is provided with a rack that meshes with the gear. The toothed plate is provided with a slot for locking the locking block. The base frame is provided with a rotating shaft for mounting the toothed plate. The rotating shaft moves through one end of the connecting plate.

6. A method of using the escape device for a car seat as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Step S1: Pull the pull head so that the rope drives the pull block, the lever plate, and the clamping plate to rotate around the central axis of the through shaft; Step S2: When the locking block separates from the toothed plate, the connecting rod assembly separates from the drive assembly. At the same time, the seat frame is subjected to the elastic force of the assist torsion spring, and the seat frame moves relative to the base.

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