CN114919524B

CN114919524B - Head wrapping type safety device

Info

Publication number: CN114919524B
Application number: CN202210768056.6A
Authority: CN
Inventors: 武和全; 张凯; 胡林; 邹铁方; 薛盈盈; 盘江强
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-06-13
Anticipated expiration: 2042-06-30
Also published as: CN114919524A

Abstract

A head-wrapped safety device, including an airbag module and a safety belt module; a seat and a safety belt module are arranged in the vehicle body, a headrest is arranged above the seat, and a placement cavity is arranged on the headrest. An airbag module is arranged in the installation cavity, and the airbag module includes a main bag body, a right bag body, and a left bag body; The other side of the capsule body is connected by the second suture, the left capsule body communicates with the main capsule body through the first vent hole, the right capsule body communicates with the main capsule body through the second vent hole, and the headrest can be adjusted The position relative to the seat is suitable for occupants of different heights; the main bladder includes an arc section after expansion, and the arc section extends to the front of the head to play a protective role; the headrest The front surface includes an arcuate surface.

Description

Head wrapping type safety device

Technical Field

The invention relates to the field of automobile safety, in particular to a head wrapping type safety device.

Background

With the increase of the domestic automobile conservation amount, people pay more attention to the protection of passengers in the automobile. Devices such as airbags or safety belts are utilized for safety protection. When the automobile collides, the air bag is inflated through the gas generator according to the deceleration of the collision and other collision signals to form an elastic air cushion, and the elastic air cushion is blocked between the passenger and the interior trim to absorb impact energy, so that the head and the chest of the human body are effectively protected from injury or the injury degree is relieved. The safety belt is used for preventing the body of a passenger from being separated from a seat to collide with the car body or throwing out the car when the car collides with the body of a bound person, so that the human body is effectively protected from injury or the injury degree is reduced.

In actual practice, there are the following problems:

1. the safety airbag in the prior art pops up during collision, and simultaneously, the ECU immediately sends an instruction to the active safety belt after receiving a collision signal, the safety belt pretensioner immediately ignites a gas generating agent in the safety belt pretensioner, a large amount of gas pushes a plurality of steel balls to continuously strike the safety belt shaft, the safety belt is pulled rapidly until the safety belt is locked, an occupant is pulled back to a correct sitting position, but if the movement stroke of the steel balls is not long enough, the steel balls can rebound to influence the rotation direction of the safety belt shaft after reaching an end point.

2. After the steel balls of the safety belt in the prior art are ejected, reinstallation is a problem, the safety belt needs to be integrally disassembled, and labor cost is consumed.

3. In the prior art, when the vehicle normally runs in an un-collided state, the steel balls are in contact with the blades of the safety belt shaft when the vehicle is not restrained, so that the normal operation of the safety belt shaft is interfered.

4. The turntable door structure in the pipeline in the prior art is in an integral disc shape, and when the turntable door structure is opened, the turntable door structure falls down in the channel and occupies a larger space of the channel with the circular section, so that the flow passage is reduced.

5. In the maintenance hole in the prior art, the requirement on the space in the hole is high, and if the maintenance hole is smaller, complex maintenance cannot be realized, and only linear motion can be realized.

6. The plugboard cover in the prior art is plugged to be opened and closed, however, the plugboard cover has the problems of excessively long occupation space or no placement when being completely pulled out.

7. In the prior art, collision protection is only performed by using an air bag, and the device has no more linkage protection functions, is single in function and is insufficient in protection effect.

Disclosure of Invention

In order to overcome the above problems, the present invention proposes a solution to simultaneously solve the above problems.

The technical scheme adopted for solving the technical problems is as follows: a head wrapping type safety device comprises an air bag module and a safety belt module; a seat and a safety belt module are arranged in the vehicle body, a headrest is arranged above the seat, a placement cavity is arranged on the headrest, an air bag module is arranged in the placement cavity, and the air bag module comprises a main bag body, a right bag body and a left bag body; the left bag body is connected with one side of the main bag body through a first stitching part, the right bag body is connected with the other side of the main bag body through a second stitching part, the left bag body is communicated with the main bag body through a first vent hole, the right bag body is communicated with the main bag body through a second vent hole, and the position of the headrest relative to the seat can be adjusted to adapt to in-vehicle personnel with different heights; the main bag body comprises an arc-shaped section after being expanded, and the arc-shaped section extends to the front of the head to play a role in protection; the front surface of the headrest comprises an arc-shaped surface;

the safety belt module comprises a main pipe, an ignition device, a spring, a safety belt shaft, a blade, a receiving box, a steel ball, a strip door plate, a magnet, an iron block, a second pipeline, a plug, a buffer cushion, a folding plate and a side cover; the main pipe comprises an ignition section, an opening section and a downstream section, wherein the ignition section is internally provided with the ignition device and a spring, and an opening is arranged above the opening section; the periphery of the safety belt shaft is provided with the blades, the blades extend into the opening section through the opening, the safety belt shaft is connected with the safety belt, the strip door plate is arranged between the ignition section and the opening section, and one end of the downstream section is connected with the receiving box;

when the ignition device is in an unfired state, the strip door plate seals the steel ball in the ignition section, the steel ball is in abutting connection with the spring, the magnet is arranged on the outer wall of the ignition section, the iron block is arranged above the strip door plate, and the iron block extends out of the opening and is attracted with the magnet; the lower part of the strip door plate is connected with the inner wall of the main pipe through a rotating shaft, a hole is formed in the upper part of the iron block, and the hole comprises an arc surface and a square section;

the second pipeline sets up in the receiving box, still be equipped with the baffle in the receiving box, be equipped with first through-hole in the second pipeline, be equipped with the second through-hole in the baffle, first, second through-hole corresponds the setting, second pipeline one end is provided with the end cap, the other end of end cap is provided with the blotter, the blotter is including guiding the cambered surface, guiding the cambered surface and can guiding the steel ball to fall into first, second through-hole, the baffle below is accomodate the chamber, the one end of accomodating the chamber is equipped with the side cap, be equipped with the socket on the receiving box wall of side cap top and supply the folded sheet to insert, the baffle below is equipped with the spout, the folded sheet can be along the spout motion in order to open and close the second through-hole.

Further, the folding plate comprises a first plate and a second plate, and the first plate can be folded relative to the second plate.

Further, when the steel balls are backfilled, the second plate seals the second through holes to prevent the steel balls from falling.

Further, when the second plate closes the second through hole, the first plate extends into the accommodating cavity.

Further, the number of the steel balls is multiple.

Further, the number of the steel balls is six.

Further, the plug is threaded into the second conduit.

Further, the plug is fixedly connected with the plane end of the buffer pad.

Furthermore, after the plug is disassembled, the steel balls can be backfilled by means of a tool.

Further, after the steel balls are backfilled, the strip door plate is lifted by means of a tool, and the iron blocks are attracted with the magnets.

The beneficial effects of the invention are as follows:

1. the steel ball is unloaded to the 1 st point that the background art provided, has set up two segmentation and has unloaded the power mode to the steel ball, and the steel ball is in the pipeline of getting into in the box after arriving the receiving box, bumps the gasket in the pipeline to cushion one section and unload the power, the gasket includes arc guide face two sections and unloads the power, with the steel ball guide to the storage chamber of below in, thereby the steel ball can't rebound.

2. Aiming at the 2 nd point proposed by the background technology, a detachable plug is arranged at the end point of the path of the steel ball, after the steel ball falls into a containing cavity below, the plug is taken out, a door of the containing cavity is opened to take out the steel ball, and the steel ball is refilled into a pipeline from the position of the plug through a tool.

3. The steel ball is plugged by the door plate in the ignition pipeline aiming at the 3 rd point proposed by the background technology, the door plate is positioned at the upstream of the blade and does not interfere with the movement of the blade, the lower end of the door plate is pivoted on the wall of the pipeline, the upper end of the door plate is provided with an iron block which can be attracted with a magnet above the pipeline, the steel ball pushes the door plate against the magnetic force after ignition explosion, and the door plate lodges in the pipeline.

4. Aiming at the 4 th point proposed by the background technology, changing a steel ball plugging disc of a turntable structure into a strip-shaped door plate; the long door plate can be closer to the bottom wall of the circular pipeline when lodging, and the excessive space can not be occupied.

5. Aiming at the 5 th point of the background technology, a combined hole of a square hole and a round hole is formed in an iron block, after one strip tool pushes a steel ball into the original position, the other strip tool pushes the iron block upwards in the round hole through the square hole to drive the strip door plate to rotate upwards, meanwhile, the strip tool is retracted, the strip door plate is closed after the iron block is attracted with a magnet, the other strip tool is retracted, and the strip door plate seals the steel ball.

6. The 6 th point to the background art proposes has set up the hole that the steel ball dropped into the storage chamber in order to open and close to folding picture peg, and first, second board pivot connection, the second board slides and sets up on the diapire of second pipeline, and in the normal condition only the second board inserts the storage chamber, first board drops at the receiver outer wall, when needing to reload the steel ball with first board, the whole all of second board inserts in order to shutoff hole that drops.

7. Aiming at the 7 th point of the background technology, a sensing controller is adopted to combine the expansion of the air bag and the tightening linkage of the safety belt, thereby realizing multifunctional protection and enhancing the function.

Note that: the above designs are not sequential, each of which provides a distinct and significant advance over the prior art.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the prior emergency tightening principle

FIG. 2 is an enlarged view of the steel ball of the present invention

FIG. 3 is a plan view of a door panel of the present invention

FIG. 4 is a top view of an iron block according to the present invention

FIG. 5 is a specific construction view of the receiving box of the present invention

FIG. 6 is a view showing the state of opening the maintenance hole according to the present invention

FIG. 7 is a three-dimensional view of the airbag protection of the present invention

FIG. 8 is a view showing the test of the vehicle body according to the present invention

FIG. 9 is an enlarged view of the circled portion of FIG. 8 in accordance with the present invention

FIG. 10 is a side view of the safety shield of the present invention

FIG. 11 is a front view of the airbag protection of the present invention

FIG. 12 is an exploded view of the air bag of the present invention

FIG. 13 is a stitched view of an airbag of the invention

In the drawings, reference numerals are as follows:

1. main tube 2, spring 3, ignition device 4, seat belt 5, seat belt shaft 6, blade 7, receiving case 8, steel ball 9, door panel 10, magnet 11, iron block 12, rotary shaft 13, opening 14, hole 15, second duct 16, receiving chamber 17, plug 18, cushion 19, first plate 20, second plate 21, side cover 22, first long tool 23, second long tool 24, vehicle body 25, seat 26, airbag module 27, headrest 28, main bag 29, right bag 30, left bag 31, sewn portion

Detailed Description

As shown in the figure: a head wrapping type safety device comprises an air bag module and a safety belt module; a seat and a safety belt module are arranged in the vehicle body, a headrest is arranged above the seat, a placement cavity is arranged on the headrest, an air bag module is arranged in the placement cavity, and the air bag module comprises a main bag body, a right bag body and a left bag body; the left bag body is connected with one side of the main bag body through a first stitching part, the right bag body is connected with the other side of the main bag body through a second stitching part, the left bag body is communicated with the main bag body through a first vent hole, the right bag body is communicated with the main bag body through a second vent hole, and the position of the headrest relative to the seat can be adjusted to adapt to in-vehicle personnel with different heights; the main bag body comprises an arc-shaped section after being expanded, and the arc-shaped section extends to the front of the head to play a role in protection; the front surface of the headrest comprises an arc-shaped surface;

As shown in the figure: the folding plate comprises a first plate and a second plate, and the first plate can be folded relative to the second plate. And when the steel balls are backfilled, the second plate seals the second through holes to prevent the steel balls from falling. When the second plate closes the second through hole, the first plate extends into the accommodating cavity. The number of the steel balls is multiple. The number of the steel balls is six. The plug is in threaded connection with the second pipeline. The plug is fixedly connected with the plane end of the buffer cushion. After the plug is disassembled, the steel ball can be backfilled by means of a tool. After the steel balls are backfilled, the long door plate is lifted by means of a tool, and the iron block is attracted with the magnet.

The foregoing detailed description is directed to embodiments of the invention which are not intended to limit the scope of the invention, but rather to cover all modifications and variations within the scope of the invention.

Claims

1. A head-wrapped safety device, characterized in that: it comprises an air bag module and a safety belt module; a seat and a safety belt module are arranged in the vehicle body, a headrest is arranged above the seat, and a headrest is arranged on the headrest. There is a placement cavity, and an airbag module is arranged in the placement cavity, and the airbag module includes a main capsule body, a right capsule body, and a left capsule body; the left capsule body is connected to one side of the main capsule body through a first suture, and the The right capsule is connected to the other side of the main capsule through the second suture, the left capsule communicates with the main capsule through the first air hole, and the right capsule communicates with the main capsule through the second air hole, The position of the head restraint relative to the seat can be adjusted to suit occupants of different heights; the main bladder includes an arc segment after expansion, and the arc segment extends to the front of the head for protection Function; the front surface of the headrest includes a curved surface;

The seat belt module includes a main pipe, an ignition device, a spring, a seat belt, a seat belt shaft, a blade, a receiving box, a steel ball, a long door panel, a magnet, an iron block, a second pipe, a plug, a buffer pad, a folding plate, Side cover; wherein, the main pipe includes an ignition section, an opening section, and a downstream section, the ignition device and a spring are arranged in the ignition section, and an opening is arranged above the opening section; The blade, the blade extends into the opening section through the opening, the safety belt is connected to the safety belt shaft, the long door panel is provided between the ignition section and the opening section, the The receiving box is connected to one end of the downstream section;

When the ignition device is not ignited, the long door panel seals the steel ball in the ignition section, the steel ball abuts against the spring, the outer wall of the ignition section is provided with the magnet, and the long The iron block is arranged above the strip door, and the iron block protrudes from the opening and is attracted to the magnet; the bottom of the long door is connected to the inner wall of the main pipe through a rotating shaft, and a hole is opened above the iron block, and the hole Including curved and square sections;

The second pipeline is arranged in the receiving box, and a partition is also provided in the receiving box, a first through hole is provided in the second pipeline, a second through hole is provided in the partition, and a second through hole is provided in the partition. 1. The second through hole is provided correspondingly. One end of the second pipeline is provided with a plug, and the other end of the plug is provided with the buffer pad. The buffer pad includes a guide arc surface, and the guide arc surface can guide Steel balls fall into the first and second through holes, the storage cavity is below the partition, one end of the storage cavity is provided with a side cover, and the receiving box wall above the side cover is provided with a socket for the folding plate to be inserted. A chute is provided under the partition, and the folding plate can move along the chute to open and close the second through hole.

2 . The head wrapping safety device according to claim 1 , wherein the folding plate comprises a first plate and a second plate, and the first plate can be folded relative to the second plate. 3 .

3 . The head wrapping safety device according to claim 2 , wherein when the steel balls are backfilled, the second plate closes the second through hole to prevent the steel balls from falling. 4 .

4 . The head wrapping safety device according to claim 3 , wherein when the second plate closes the second through hole, the first plate protrudes into the receiving cavity. 5 .

5. The head wrapping safety device according to claim 1, characterized in that: there are multiple steel balls.

6. The head wrapping safety device according to claim 5, wherein the number of said steel balls is six.

7. The head wrapping safety device according to claim 1, wherein the plug is screwed into the second pipeline.

8 . The head wrapping safety device according to claim 1 , wherein the plug is fixedly connected to the flat end of the buffer pad. 9 .

9. The head-wrapped safety device according to claim 1, characterized in that, after the plug is disassembled, the steel balls can be backfilled with the help of tools.

10 . The head-wrapping safety device according to claim 9 , wherein after the steel balls are backfilled, the long door panel is lifted with the help of tools and the iron block is attracted to the magnet. 11 .