CN212243260U

CN212243260U - Passive component protection device of passive air bag protection system

Info

Publication number: CN212243260U
Application number: CN202020290131.9U
Authority: CN
Inventors: 陈督
Original assignee: Shanghai Shujing Auto System Technology Co ltd
Current assignee: Shanghai Shujing Auto System Technology Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-12-29
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses a passive original paper protection device of a passive air bag protection system, which comprises an air source part, a control valve body part and a buffer air bag part, wherein one end of the air source part is fixedly connected with one end of the control valve body part, the other end of the control valve body part is fixedly connected with one end of the buffer air bag part, the air source part comprises a closed air bottle, liquid nitrogen and a valve needle top cover, the liquid nitrogen is arranged in the closed air bottle, one end of the closed air bottle is movably connected with one end of the valve needle top cover, compared with the prior art, the utility model has the following beneficial effects that the valve needle impacts a valve cover, the compressed nitrogen rapidly rushes into the air bag in a way, the slow inflation response time possibly generated by the traditional air bag is avoided, the emergency protection can not be carried out on passengers and drivers in time, and the production cost of the air bag is reduced, the safety of the airbag is enhanced.

Description

Passive component protection device of passive air bag protection system

Technical Field

The utility model relates to a car safety protection system technical field, particularly, a passive original paper protection device of passive form gasbag protection system.

Background

The air bag is formed by filling compressed air or water medium into a flexible elastic body; the spring action is achieved by the compressibility of air and the mobility of water. The airbag is used as an auxiliary configuration for passive safety of the vehicle body, and is increasingly emphasized by people. When the automobile collides with an obstacle, namely primary collision, a passenger collides with an inner component of the automobile, namely secondary collision, and the air bag rapidly opens an air cushion filled with air after the primary collision and before the secondary collision, so that the passenger moves due to inertia and then "pounces on the air cushion", thereby alleviating the impact on the passenger, absorbing collision energy and lightening the injury degree of the passenger.

At present, in the field of automobile airbags, a gas generator receives a signal indication to generate an ignition action, ignites solid fuel and generates gas to inflate an airbag, so that the airbag is rapidly expanded, and the gas is provided for the airbag in a combustion mode.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a passive original paper protection device of passive form gasbag protection system to the combustion method is not adopted in what proposes in solving above-mentioned background art, adopts the liquid nitrogen gas mode of release in the twinkling of an eye, makes the gasbag produce the inflation, avoids the scorching hot gas of production to the passenger and the driver problem of burning.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a passive original paper protection device of passive form gasbag protection system, includes air supply part, control valve body part and buffering gasbag part, the one end of air supply part and the one end fixed connection of control valve body part, the other end of control valve body part and the one end fixed connection of buffering gasbag part.

Further, the gas source part comprises a closed gas cylinder, liquid nitrogen and a valve needle top cover, the liquid nitrogen is filled in the closed gas cylinder, one end of the closed gas cylinder is movably connected with one end of the valve needle top cover, the closed gas cylinder is used for storing the liquid nitrogen, and when the valve needle impacts the valve needle top cover, the nitrogen flows out of the closed gas cylinder.

Further, the control valve body part comprises a valve needle, a valve body framework, a fixing cap, a shell, a spring, a valve cover, a coil, a first sealing ring and a second sealing ring, the valve body framework is arranged inside the shell, one end of the valve body framework is fixedly connected with one end of the fixing cap, the first sealing ring is arranged at the contact position of the inner wall of one end of the valve body framework and the outer wall of one end of the fixing cap, the second sealing ring is arranged at the other end of the fixing cap, the valve cover is movably arranged on the outer side of the valve body framework, the coil is arranged between the valve body framework and the valve cover, the valve needle is arranged on the inner side of the valve body framework, the valve body framework is movably connected with the valve needle through the spring, the control valve body part is used for controlling the flowing or stopping of liquid nitrogen inside the sealed gas, liquid nitrogen in the closed gas cylinder rapidly enters the buffering gas bag part through the valve body framework in a compressed state.

Furthermore, the buffering air bag part comprises a buffering air bag and an air pipe, one end of the buffering air bag is fixedly connected with one end of the air pipe, and when the control valve body part is opened, liquid nitrogen in the closed air bottle can rapidly rush into the buffering air bag, so that the buffering air bag rapidly expands into an air cushion.

Further, the other end of the valve needle top cover is in threaded connection with the other end of the fixed cover cap, the second sealing ring is arranged between the closed gas cylinder and the fixed cover cap, the other end of the valve body framework is fixedly connected with the other end of the gas pipe, the control valve body part controls the flow or stop of liquid nitrogen in the closed gas cylinder, and the closed gas cylinder is connected with the buffering gas bag through the gas pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses use the needle striking valve gap, make the mode that the gasbag was rushed into rapidly to the nitrogen gas of compression, it is slow to have avoided the response time of aerifing that traditional gasbag probably produced, can't in time carry out emergency protection to passenger and driver, has strengthened the security of gasbag, has avoided the problem that the passenger and the driver burn of the burning hot gas that traditional gasbag probably produced, and has reduced the manufacturing cost of gasbag, has strengthened the security of gasbag.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a passive element protection device of a passive airbag protection system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an air source portion of a passive element protection device of a passive airbag protection system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a control valve body part in a passive element protection device of a passive airbag protection system according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a control valve body portion of a passive element protection device of a passive airbag protection system according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a buffer airbag portion in a passive element protection device of a passive airbag protection system according to an embodiment of the present invention.

Reference numerals:

1. a gas source section; 11. closing the gas cylinder; 12. a valve needle top cover; 2. a control valve body portion; 21. a valve needle; 22. a valve body skeleton; 23. fixing the cap; 24. a housing; 25. a spring; 26. a valve cover; 27. a coil; 28. a first seal ring; 29. a second seal ring; 3. a cushion airbag portion; 31. a buffer air bag; 32. the trachea.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

the first embodiment is as follows:

referring to fig. 1-4, a passive component protection device of a passive air bag protection system according to an embodiment of the present invention includes an air source portion 1, a control valve body portion 2 and a buffer air bag portion 3, one end of the air source portion 1 is fixedly connected to one end of the control valve body portion 2, the other end of the control valve body portion 2 is fixedly connected to one end of the buffer air bag portion 3, the air source portion includes a closed air bottle 11, liquid nitrogen and a valve needle top cover 12, the closed air bottle 11 contains the liquid nitrogen, one end of the closed air bottle 11 is movably connected to one end of the valve needle top cover 12, the control valve body portion 2 includes a valve needle 21, a valve body framework 22, a fixing cap 23, a housing 24, a spring 25, a valve cover 26, a coil 27, a first seal ring 28 and a second seal ring 29, the housing 24 is internally provided with the valve body framework 22, one end of valve body skeleton 22 and the one end fixed connection of fixed block 23, the inner wall of valve body skeleton 22 one end is equipped with first sealing washer 28 with the outer wall contact department of fixed block 23 one end, the other end of fixed block 23 is provided with second sealing washer 29, the outside movable mounting of valve body skeleton 22 has valve gap 26, be provided with coil 27 between valve body skeleton 22 and the valve gap 26, the inboard of valve body skeleton 22 is provided with needle 21, valve body skeleton 22 passes through spring 25 swing joint with needle 21.

Through the above technical scheme of the utility model, liquid nitrogen gas leaves in the closed gas cylinder, control valve body part 2 is used for controlling the flow or the stop of the inside liquid nitrogen gas of closed gas cylinder, when needle 21 strikes to needle top cap 12, nitrogen gas flows out from closed gas cylinder 11, when taking place emergency, coil 27 circular telegram drives needle 21 to the 11 direction movements of closed gas cylinder, needle 21 striking needle top cap 12, liquid nitrogen gas in the closed gas cylinder 11 gets into buffering gasbag part 3 through valve body skeleton 22 rapidly under compression state.

Example two:

referring to fig. 1-4, for the buffering airbag portion 3, the buffering airbag portion 3 includes a buffering airbag 31 and an air tube 32, one end of the buffering airbag 31 is fixedly connected to one end of the air tube 32, the other end of the valve needle top cover 12 is in threaded connection with the other end of the fixing cap 23, the second sealing ring 29 is disposed between the closed air bottle 11 and the fixing cap 23, and the other end of the valve body framework 22 is fixedly connected to the other end of the air tube 32.

Through the above technical scheme of the utility model, the flow or the stop of liquid nitrogen gas in the control valve body part 2 control closed gas cylinder 11, closed gas cylinder passes through trachea 32 and is connected with buffering gasbag 31, and when control valve body part 2 was opened, liquid nitrogen gas in the closed gas cylinder 11 can rush into buffering gasbag 31 rapidly in, makes buffering gasbag 31 bulge into the air cushion rapidly.

In practical application, when an emergency occurs, the coil 27 is electrified to control the valve needle 21 to move towards the direction of the closed gas cylinder 11, the valve needle 12 impacts the valve needle top cover 21 to release nitrogen, liquid nitrogen in the closed gas cylinder 11 rapidly enters the buffer gas bag 31 through the valve body framework 22 in a compressed state, and the buffer gas bag 31 rapidly expands into a gas cushion to support and protect a human body.

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

Claims

1. The utility model provides a passive original paper protection device of passive form gasbag protection system which characterized in that, includes air supply part (1), control valve body part (2) and buffering gasbag part (3), the one end of air supply part (1) and the one end fixed connection of control valve body part (2), the other end of control valve body part (2) and the one end fixed connection of buffering gasbag part (3).

2. The passive element protection device of the passive airbag protection system according to claim 1, wherein the gas source part (1) comprises a closed gas cylinder (11), liquid nitrogen and a valve needle top cover (12), the liquid nitrogen is filled in the closed gas cylinder (11), and one end of the closed gas cylinder (11) is movably connected with one end of the valve needle top cover (12).

3. The passive element protection device of the passive airbag protection system according to claim 2, wherein the control valve body portion (2) comprises a valve needle (21), a valve body framework (22), a fixed cap (23), a housing (24), a spring (25), a valve cover (26), a coil (27), a first sealing ring (28) and a second sealing ring (29), the valve body framework (22) is arranged inside the housing (24), one end of the valve body framework (22) is fixedly connected with one end of the fixed cap (23), the first sealing ring (28) is arranged at the contact position of the inner wall of one end of the valve body framework (22) and the outer wall of one end of the fixed cap (23), the second sealing ring (29) is arranged at the other end of the fixed cap (23), the valve cover (26) is movably arranged outside the valve body framework (22), and the coil (27) is arranged between the valve body framework (22) and the valve cover (26), the inboard of valve body skeleton (22) is provided with needle (21), valve body skeleton (22) pass through spring (25) swing joint with needle (21).

4. A passive element protection device of a passive air bag protection system according to claim 1, wherein the buffering air bag portion (3) comprises a buffering air bag (31) and an air tube (32), and one end of the buffering air bag (31) is fixedly connected with one end of the air tube (32).

5. A passive element protection device of a passive air bag protection system according to claim 3, wherein the other end of the valve needle top cover (12) is in threaded connection with the other end of the fixing cap (23), the second sealing ring (29) is arranged between the closed air bottle (11) and the fixing cap (23), and the other end of the valve body framework (22) is fixedly connected with the other end of the air pipe (32).