CN210852139U

CN210852139U - Vehicle seat prevents dive mechanism, vehicle seat and vehicle

Info

Publication number: CN210852139U
Application number: CN201921390448.3U
Authority: CN
Inventors: 魏敏; 彭昌坤; 黄迎秋
Original assignee: BAIC Motor Co Ltd
Current assignee: BAIC Motor Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-06-26
Anticipated expiration: 2029-08-23

Abstract

The present disclosure relates to a vehicle seat prevents dive mechanism, vehicle seat and vehicle, wherein vehicle seat prevents dive mechanism and includes: the supporting frame (3) is arranged at the front end of the seat basin framework (4) in a vertically rotatable manner; the gas generating device (1) is arranged on the seat basin framework and used for generating impact gas when the impact force applied to the vehicle is greater than or equal to a first threshold value; and the transmission device (2) is arranged between the gas generating device and the support frame and is used for being pushed by impact gas to drive the support frame to rotate upwards. When the vehicle is impacted and the impact force is larger than or equal to the first threshold value, the gas generating device is triggered to generate impact gas, the impact gas drives the transmission device to start acting to drive the support frame to rotate upwards, and the support frame rotating upwards can support a passenger sitting on the seat basin framework to prevent the body of the passenger from submerging when the passenger collides because the support frame is installed at the front end of the seat basin framework of the seat, namely in front of the whole trunk of the passenger.

Description

Vehicle seat prevents dive mechanism, vehicle seat and vehicle

Technical Field

The present disclosure relates to the field of vehicle manufacturing, and in particular, to a vehicle seat anti-dive mechanism, a vehicle seat, and a vehicle.

Background

When a vehicle collides during running, a passenger is prone to a body submergence phenomenon, which causes great injury, and therefore, a device which is comfortable in experience and can prevent the body submergence of the passenger needs to be developed to reduce the injury to the passenger caused by strong collision. In the related art, a static dive prevention mechanism is generally provided in order to reduce injury due to the dive of a body, but the design of such a structure needs to be compatible with the riding comfort of an occupant, and the static dive prevention structure is restricted in the height direction, thereby weakening the effect of the dive prevention of the occupant.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a vehicle seat anti-dive mechanism capable of preventing a body of an occupant from diving when an impact force to which a vehicle is subjected is greater than or equal to a first threshold value.

An object of the present disclosure is to provide a vehicle seat including a vehicle seat anti-dive mechanism provided by the present disclosure.

The object of the present disclosure is to provide a vehicle including the vehicle seat provided by the present disclosure.

In order to achieve the above object, the present disclosure provides a vehicle seat anti-dive mechanism including: the supporting frame is arranged at the front end of the seat basin framework in a vertically rotatable manner;

the gas generating device is arranged on the seat basin framework and is used for generating impact gas when the impact force applied to the vehicle is greater than or equal to a first threshold value; and

and the transmission device is arranged between the gas generating device and the support frame and is used for being pushed by the impact gas to drive the support frame to rotate upwards.

Optionally, the supporting frame is configured as a U-shaped tubular beam with a backward opening, and two ends of the U-shaped tubular beam are respectively installed at the front end of the seat basin framework.

Optionally, the supporting frame is mounted at the front end of the seat basin framework through a rotating shaft; the transmission device includes: the gear is fixedly sleeved on the rotating shaft so as to drive the supporting frame to rotate when rotating; and the rack is meshed with the gear and can drive the gear to rotate when being pushed by the impact gas.

Optionally, the gas generating device comprises: a gas generating agent storage tank containing a gas generating agent, the gas generating agent storage tank having a diaphragm formed at a front end thereof and adapted to be broken by the impact gas; an ignition connector mounted on the gas generant storage tank for triggering the gas generant when the vehicle is subjected to an impact force greater than or equal to a first threshold; and the guide pipe is fixed at the front end of the gas generating agent storage tank and is communicated with the gas generating agent storage tank when the membrane is broken, the transmission device also comprises a push rod which is arranged in the guide pipe in a mode of extending in the same direction, and the push rod is connected to the rear end of the rack.

Optionally, the membrane is a metal film.

Optionally, a partition plate is arranged at the front end of the diaphragm, and an exhaust hole is formed in the partition plate.

Optionally, the push rod and the guide tube are arranged at an interval, and a piston attached to the inner wall of the guide tube is formed at the rear end of the push rod.

According to a second aspect of the present disclosure, there is provided a vehicle seat including the above vehicle seat anti-dive mechanism.

Optionally, the gas generating device and the transmission device are respectively installed on a side plate of the seat basin framework.

According to a third aspect of the present disclosure, there is provided a vehicle comprising the vehicle seat described above.

Through above-mentioned technical scheme, when the vehicle received the striking and impact is greater than or equal to first threshold value, gas generator was triggered, produced and assaulted gas, this assaulted gas is started to act as drive power drive transmission, and then drives the support frame and upwards rotates, because the support frame is installed at the front end of seat basin skeleton, promptly in the place ahead of the whole trunk of passenger, consequently upwards pivoted support frame can hold the passenger of taking on the seat basin skeleton, prevents the dive of health when striking.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a vehicle seat anti-dive mechanism according to one embodiment of the present disclosure;

FIG. 2 is a schematic view of a vehicle seat anti-dive mechanism operating in accordance with one embodiment of the present disclosure;

FIG. 3 is a schematic view of a vehicle seat according to one embodiment of the present disclosure.

Description of the reference numerals

1 gas generating device 11 gas generating agent storage tank

12 ignition connector 13 guide tube

14 division plate 15 diaphragm

16 gas generating agent 2 transmission device

21 rack and 22 gear

23 push rod 24 piston

3 rotating shaft of support frame 31

32U-shaped pipe beam 4-seat basin framework

41 side plate

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms "front and rear" used herein are defined according to the directions of the relevant components in the use environment thereof, for example, the front and rear of the seat pan frame are defined with reference to the front and rear direction of the vehicle; while the front and rear of the gas generating device and the transmission device are defined with reference to the moving direction of the moving member, specifically, for example, in the following embodiments, the gas generating device is triggered to generate the impact gas that pushes the push rod in the front direction and in the rear direction. The terms "first," "second," and the like as used in this disclosure are used to distinguish one element from another, and do not denote any order or importance.

As shown in fig. 1 to 3, the present disclosure provides a vehicle seat anti-dive mechanism including: support frame 3, gas generator 1 and transmission 2. Wherein, the supporting frame 3 is arranged at the front end of the seat basin framework 4 in a way of rotating up and down; the gas generating device 1 is arranged on a seat basin framework 4 and used for generating impact gas when the impact force applied to a vehicle is greater than or equal to a first threshold value; the transmission device 2 is arranged between the gas generating device 1 and the support frame 3 and is used for being pushed by impact gas to drive the support frame 3 to rotate upwards.

Thus, when the vehicle is impacted and the impact force is greater than or equal to the first threshold value, the gas generating device 1 is triggered to generate impact gas, the impact gas is used as driving force to drive the transmission device 2 to start acting, and then the support frame 3 is driven to rotate upwards, and as the support frame 3 is arranged at the front end of the seat basin framework 4 of the seat, namely in front of the whole trunk of a passenger, the support frame 3 rotating upwards can support the passenger seated on the seat basin framework 4, and the body is prevented from sinking when the vehicle is impacted. It should be noted that the first threshold may be designed according to actual use requirements. According to one embodiment, the triggering timing of the gas generating device and the triggering timing of the airbag of the vehicle can be designed to be the same timing, in which case the magnitude of the first threshold value is the magnitude of the impact force that the vehicle receives to be able to trigger the airbag. Or in other embodiments, the first threshold may be less than the magnitude of the impact force capable of triggering the airbag.

The present disclosure does not specifically limit the specific structure of the support frame 3, for example, referring to fig. 3, the support frame 3 may be a U-shaped pipe beam 32 configured to open backward, and both ends of the U-shaped pipe beam 32 are respectively installed at the front end of the seat pan frame 4. Thus, the U-shaped pipe beam 32 is similar to the front of the vehicle seat, and therefore, when the U-shaped pipe beam 32 is not rotated, the installation mode can improve the space utilization rate and simultaneously take the use comfort of passengers into consideration.

The present disclosure is not limited to the specific form of the supporting frame 3 driven by the transmission device 2, as long as the supporting frame 3 can rotate upwards at the front end of the seat pan frame 4, and the following description is made by way of example with reference to the specific embodiments of the drawings.

In the present disclosure, as shown in fig. 3, the supporting frame 3 may be mounted at the front end of the seat pan frame 4 through a rotating shaft 31, for example, when the supporting frame 3 is configured as the above-mentioned U-shaped pipe beam 32, two ends of the U-shaped pipe beam 32 are fixedly connected to the rotating shaft 31, the rotating shaft 31 is rotatably mounted at the front end of the seat pan frame 4, and the transmission device may drive the rotating shaft 31 to rotate, thereby driving the supporting frame 3 to rotate therewith. Wherein, the rotation angle of the support frame 3 can be designed according to the use requirement, for example, the rotation angle can be set to 20 °. Thus, the distance for lifting the thigh part of the passenger upwards is adjustable, and the passenger can be more effectively prevented from diving in the collision compared with a static limited-height anti-diving device.

The transmission device 2 may realize the driving of the rotating shaft 31 by any suitable mechanical structure, for example, as shown in fig. 1, the transmission device 2 may be a device comprising a gear 22 and a rack 21, wherein the rack 21 is engaged with the gear 22, and the rack 21 can drive the gear 22 to rotate by matching with the gear 22 when being pushed by the impact gas; as shown in fig. 2, since the gear 22 is fixedly sleeved on both ends of the transmission shaft 31, the rotation of the gear 22 can drive the rotation shaft 31 to rotate synchronously, so that the support frame 3 fixedly connected to the rotation shaft 31 rotates upwards.

As shown in FIG. 1, according to one embodiment, the gas generating device may include a gas generant storage tank 11, an ignition connector 12, and a guide tube 13. Wherein the gas generating agent storage tank 11 contains a gas generating agent 16, and the front end of the gas generating agent storage tank 11 is provided with a diaphragm 15 which can be broken by the impact gas, and the diaphragm 15 is also used for confining the gas generating agent 16 in the gas generating agent storage tank 11 when the gas generating agent 16 is not triggered. The material of the diaphragm 15 is not limited by the present disclosure, and may be provided as a metal thin film, for example. An ignition connector 12 is mounted on the gas generant storage tank 11 for triggering the gas generant 16 when the vehicle is subjected to an impact force greater than or equal to a first threshold, the ignition connector 12 being electrically connectable to a sensor on the vehicle for receiving an impact force signal. For example, when the first threshold is the same as the magnitude of the impact force applied to the vehicle to trigger the airbag, the driving signal of the ignition connector 12 may be the same as the triggering signal of the airbag. The guide pipe 13 is fixed to the front end of the gas generating agent storage tank 11 and can communicate with the gas generating agent storage tank 11 when the membrane 15 is ruptured. In this embodiment, the transmission 2 further comprises a push rod 23 extending in the same direction in the guide tube 13, and the push rod 23 is connected to the rear end of the rack 21.

Thus, when the vehicle is subjected to an impact force greater than or equal to the first threshold value, the ignition connector 12 triggers the gas generating agent 16 stored in the gas generating agent storage tank 11 to chemically react, and impact gas is generated instantaneously, which breaks the membrane 15 into the guide tube 13, pushes the push rod 23 disposed in the guide tube 13, and the push rod 23 continues to drive the rack 21 forward. The amount of movement of the push rod can be designed according to actual use requirements, and can be set to 40mm, for example. Here, in connection with the above, the references to "front and rear" in the gas generator device 1 and the transmission device 2 are defined with reference to the direction of movement of the impinging gas, i.e. forward or backward of the direction of movement. In addition, the gas generant 16 and the ignition connector 12 are common components and the present disclosure is not overly directed to the specific structure, composition, and operation thereof.

Further, the front end of the diaphragm 15 may be provided with a partition plate 14, the partition plate 14 is provided with an exhaust hole, and the exhaust hole is sealed by the diaphragm 15. In this way, the partition plate 14 can reinforce the membrane sheet 15 and also can serve as a bearing member for the membrane sheet 15. In addition, the partition plate 14 prevents the unreacted gas generating agent 16 from being carried into the guide pipe 13 by the impact gas in a large amount, which facilitates the driving process and facilitates the replacement and cleaning of the vehicle seat anti-dive mechanism at a later stage. The number of the exhaust holes may be plural, and the exhaust holes are distributed on the partition plate 14 at intervals, and may be arranged in a honeycomb or matrix manner, for example.

According to one embodiment, as shown in fig. 1, the push rod 23 is spaced apart from the guide tube 13, and a piston 24 attached to an inner wall of the guide tube 13 may be formed at a rear end of the push rod 23. The setting of piston 24 can avoid the impact gas to pass through from the gap between stand pipe 13 and push rod 23 thereby reduces the impulse of impact gas, and push rod 23 and stand pipe 13 interval setting can reduce the frictional resistance between push rod 23 and stand pipe 13, and these two kinds of settings cooperation are used, can improve the drive effect of impact gas. In addition, the present disclosure may further provide a stopper at the front end of the guide tube 13, and the stopper is used to prevent the push rod 23 and the piston 24 from being completely separated from the guide tube 13 when moving in the axial direction.

The present disclosure also provides a seat, including the vehicle seat anti-dive mechanism, as shown in fig. 2, the support frame 3 provided at the front end of the seat can be lifted up quickly when the impact force received by the vehicle is greater than or equal to the first threshold value, so as to lift up the thighs of the passenger, and effectively prevent the body of the passenger from dive.

As shown in fig. 3, according to an embodiment, the gas generator 1 and the transmission 2 may be respectively mounted on the side plate 41 of the seat pan frame 4, and the mounting on the side plate 41 may increase the space utilization rate in the vehicle without affecting the comfort of the passenger in normal riding.

The present disclosure also provides a vehicle including the vehicle seat described above, which has a quick-response occupant submergence prevention function.

The present disclosure provides a vehicle seat and a vehicle having all the advantageous effects of the above-described dive prevention device, which will not be described herein in detail.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A vehicle seat anti-dive mechanism, comprising:

the supporting frame (3) is arranged at the front end of the seat basin framework (4) in a vertically rotatable manner;

the gas generating device (1) is arranged on the seat basin framework (4) and is used for generating impact gas when the impact force applied to the vehicle is greater than or equal to a first threshold value; and

the transmission device (2) is arranged between the gas generating device (1) and the support frame (3) and is used for being pushed by the impact gas to drive the support frame (3) to rotate upwards.

2. The vehicle seat anti-submarine mechanism according to claim 1, wherein the support frame (3) is configured as a U-shaped tubular beam (32) that is open rearward, and both ends of the U-shaped tubular beam (32) are respectively mounted at the front end of the seat pan frame (4).

3. The vehicle seat anti-dive mechanism according to claim 1 or 2, wherein the support bracket (3) is mounted at a front end of the seat pan frame (4) through a rotation shaft (31); the transmission (2) comprises:

a gear (22) fixedly sleeved on the rotating shaft (31) so as to drive the support frame (3) to rotate when rotating; and

a rack (21) that meshes with the gear (22) and is capable of driving the gear (22) to rotate when pushed by the impact gas.

4. Vehicle seat anti-dive mechanism according to claim 3, characterized in that said gas generating device (1) comprises:

a gas generating agent storage tank (11) that contains a gas generating agent (16), wherein a diaphragm (15) that can be broken by the impact gas is formed at the front end of the gas generating agent storage tank (11);

an ignition connector (12) mounted on the gas generant storage tank (11) for triggering the gas generant (16) when the vehicle is subjected to an impact force greater than or equal to a first threshold; and

a guide pipe (13) fixed to the front end of the gas generating agent storage tank (11) and communicating with the gas generating agent storage tank (11) when the membrane (15) is ruptured,

the transmission device (2) further comprises a push rod (23) which is arranged in the guide pipe (13) in a co-extending mode, and the push rod (23) is connected to the rear end of the rack (21).

5. Vehicle seat anti-dive mechanism according to claim 4, characterized in that said membrane (15) is a metal film.

6. The vehicle seat anti-submarine mechanism according to claim 4, wherein a partition plate (14) is provided at the front end of the diaphragm (15), and the partition plate (14) is provided with vent holes.

7. The vehicle seat submergence preventing mechanism according to claim 4, wherein the push rod (23) is provided at a distance from the guide tube (13), and a piston (24) that is fitted to an inner wall of the guide tube (13) is formed at a rear end of the push rod (23).

8. A vehicle seat characterized by comprising the vehicle seat anti-dive mechanism according to any one of claims 1 to 7.

9. The vehicle seat according to claim 8, characterized in that the gas generating device (1) and the transmission device (2) are respectively mounted on a side plate (41) of the seat pan frame (4).

10. A vehicle characterized by comprising a vehicle seat according to claim 8 or 9.