A waist belt type airbag system

Abstract

A waistband type airbag system, comprising an airbag, an airbag box, an airbag power source module, a safety belt, a hose; the airbag is placed in the airbag box when it is not popped out, the airbag box is fixed on the safety belt, the airbag in the unfolded state comprises an inclined plane and a bottom surface, the gas tank contains high-pressure gas, the connecting head is above the gas tank, the connecting head is provided with a powder box above, the powder box contains gunpowder and a firing pin, the connecting head is provided with a cavity, the firing pin extends into the cavity, and the cavity is connected to the airbag box through the hose.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles, in particular to a waistband type airbag system. BACKGROUND

[0002] Automatic driving is not only the key to future road traffic reform, but also the commanding point of future automobile industry and information industry, and will directly reflect the competitiveness of the national industry. It is predicted that the production value of automatic driving cars will reach 1.9 trillion US dollars by 2025; by 2030, automatic driving cars will account for 15% of the total amount of motor vehicle sales; by the middle of the 21st century, automatic driving cars will be widely used. With the rapid development of the times, the traditional safety seat arrangement cannot meet the daily needs of the passengers, and many automobile manufacturers have launched car models with rotating seats, such as the Sienna released by Toyota in 2020 and the sixth generation of Odyssey released by Honda in 2018. The improvement of protection performance brought by this is challenging.

[0003] In actual engineering practice, the following problems exist:

[0004] I. In the vehicle driving mode of the prior art, the airbag is integrated in the steering wheel area. Since the passenger's seat is adjustable, the distance between the passenger and the steering wheel during driving will still bring impulse during collision, and protection cannot be perfectly performed.

[0005] II. The airbag of the prior art is integrated in the steering wheel area, and lacks support when it pops out, which cannot solve the positioning problem as much as possible.

[0006] III. The airbag pop-out structure design in the prior art is relatively complex, and the cost is high.

[0007] IV. The airbag folding structure design in the prior art is relatively complex, not only the production cost is high, but also the installation cost is high. SUMMARY

[0008] In order to overcome the above problems, the present application proposes a scheme to solve the above multiple problems at the same time.

[0009] The technical scheme adopted by the present application to solve its technical problems is: a waistband type airbag system, comprising an airbag, an airbag box, an airbag power source module, a safety belt and a hose; wherein the airbag power source module comprises gunpowder, a firing pin, a connector, and a gas storage tank; the airbag box comprises a box body, a box cover, a latch, a locking hole, an upper cavity, a lower cavity, a connecting cavity, a support channel, a plug-in channel, a lower pipe, a tee joint, an upper pipe, a through hole, a patch, a gasket, a top rod, a push block, and a locking module; the locking module comprises a plug rod, a vertical rod, and a horizontal rod, and the safety belt is a waistband type safety belt.

[0010] The airbag is placed in the airbag box which is fixed on the safety belt, the airbag includes an inclined surface and a bottom surface in the unfolded state, the gas tank contains high-pressure gas, the connecting head is above the gas tank, the firecracker box is above the connecting head, the firecracker box contains gunpowder and a firing pin, the connecting head is provided with a cavity, the firing pin extends into the cavity, and the cavity is connected to the airbag box through the hose;

[0011] The box body includes a box body front wall, the box cover includes a front cover part, the box body and the box cover are pivotally connected, the hose penetrates into the box body and is connected to a tee joint on the inner wall of the box body, the tee joint is also connected to one end of the upper pipe and the lower pipe respectively, the other end of the upper pipe is connected to the airbag, and the other end of the lower pipe is connected to a through hole on the box body front wall.

[0012] The box body front wall includes an upper cavity, a lower cavity and a connecting cavity, the upper cavity extends outward to form a support channel, the lower cavity extends outward to form a plug-in channel, the plug-in channel is connected to the outside and the lower cavity, the push block is arranged in the lower cavity, the push block divides the lower cavity into a left cavity and a right cavity, and the through hole is connected to the right cavity; the push block is connected with the top rod at the left end, and the top rod is provided with a gasket at the left end; the vertical rod extends from the upper cavity to the left cavity through the connecting cavity, the vertical rod is provided with a horizontal rod above, the horizontal rod includes a left rod part and a right rod part, the plug-in rod is connected to the left side of the vertical rod, the plug-in rod penetrates into the plug-in channel, and the left rod part penetrates into the support channel; the front cover part is provided with a plug at the lower end, the plug is provided with a locking hole, the front cover part abuts against the box body front wall in the buckled state of the airbag box, the plug extends into the upper cavity, the right rod part is inserted into the locking hole, the plug-in rod does not extend out of the box body, and the patch is attached to the outside of the box body to prevent the plug-in channel from being exposed.

[0013] Preferably, when the airbag box is opened, the left rod part moves leftward along the support channel, and the right rod part is separated from the locking hole.

[0014] Preferably, in the opened state of the airbag box, the vertical rod abuts against the left end of the connecting cavity.

[0015] Preferably, in the opened state of the airbag box, the plug-in rod extends out of the box body, and the patch is lifted off.

[0016] Preferably, in the locked state of the airbag box, the vertical rod abuts against the right end of the connecting cavity.

[0017] Preferably, the bottom surface includes an arc surface, and the arc surface is connected to the inner wall of the box body.

[0018] Preferably, when the car collides, the gun explodes, thereby pushing the said striker to pierce the closed tank opening of the said gas storage tank, and the high-pressure gas from the gas storage tank passes through the cavity, the hose, the tee joint, the upper pipe to the safety air bag in turn, and passes through the cavity, the hose, the tee joint, the lower pipe to the right cavity in turn.

[0019] Preferably, after the high-pressure gas is introduced into the right cavity, the push block is pushed to move left, thereby the said top rod abuts against the gasket and pushes the said vertical rod to move left.

[0020] Preferably, after the gas is introduced into the safety air bag, the safety air bag expands to push the said box cover due to the fact that the right rod part is simultaneously separated from the said locking hole, and the said box cover rotates to open.

[0021] Preferably, the tank opening of the said gas storage tank is provided with a diaphragm matched with the said striker.

[0022] The beneficial effects of the present application are:

[0023] I. The first point raised in view of the background art is that a waistband type safety air bag is adopted, which is close to the human body, can be quickly attached to the human body, and then the human body and the air bag collide with the vehicle body together, thereby adding a very strong buffer to the surface of the human body; the risk that the human body will still collide with the air bag through an impulse process in the prior art is avoided; and when the human body cannot precisely collide with the front air bag in the case of side front and side rear collision, due to the setting of the waistband type safety air bag, the human body and the air bag collide together, and greater protection is possible.

[0024] II. The second point raised in view of the background art is that the safety air bag is flat at the bottom and inclined at the side. The bottom is always attached to the legs of the human body, and the side is always attached to the front of the human body, so that the human body constitutes support for the safety air bag, thereby making the position of the safety air bag more stable.

[0025] III. The third point raised in view of the background art is that the gas sprayed by the high-pressure tank is divided into two paths through the tee joint, one path supplies the safety air bag, and the other path supplies the top rod, which pushes the locking structure to unlock; thereby the number of power sources is reduced, and the air bag ejection structure is simplified.

[0026] IV. The fourth point raised in view of the background art is that the locking rod can close the air bag box, and the air bag box has a support structure to support the locking structure, and the patch can prevent the insertion rod from coming out. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be further described below in conjunction with the drawings and examples.

[0028] Figure 1 Three-dimensional diagram of the safety air bag ejected when the passenger of the present application sits on the seat

[0029] Figure 2A three-dimensional view of the airbag of the present invention

[0030] Figure 3 A plan view of the airbag of the present invention not being deployed when a passenger is seated on the seat

[0031] Figure 4 A plan view of the airbag of the present invention being deployed when a passenger is seated on the seat

[0032] Figure 5 A schematic diagram of the working principle of the airbag of the present invention

[0033] Figure 6 A sectional view of the airbag box of the present invention

[0034] Figure 7 A structural diagram of the internal cavity of the front wall of the box body of the present invention

[0035] Figure 8 An internal diagram of the front wall of the box body when the airbag box is locked of the present invention

[0036] Figure 9 An internal diagram of the front wall of the box body when the airbag box is unlocked of the present invention

[0037] Figure 10 A diagram of the entire process of the airbag being deployed after a collision of the present invention

[0038] In the drawings, the reference signs are as follows:

[0039] 1, airbag, 2, side surface, 3, bottom surface, 4, airbag box, 5, airbag power source module, 6, safety belt, 7, hose, 8, gunpowder, 9, firing pin, 10, connector, 11, gas storage tank, 12, high-pressure gas, 13, box body, 14, box cover, 15, front cover part, 16, box body front wall, 17, latch, 18, locking hole, 19, upper cavity, 20, lower cavity, 21, connecting cavity, 22, support channel, 23, plug-in channel, 24, lower pipe, 25, three-way joint, 26, upper pipe, 27, right cavity, 28, left cavity, 29, through hole, 30, patch, 31, plug rod, 32, vertical rod, 33, gasket, 34, jacking rod, 35, push block, 36, right rod part, 37, left rod part. DETAILED DESCRIPTION

[0040] As shown in the drawings: a waistband type airbag system, comprising an airbag, an airbag box, an airbag power source module, a safety belt, a hose; wherein the airbag power source module comprises gunpowder, a firing pin, a connector, a gas storage tank; the airbag box comprises a box body, a box cover, a latch, a locking hole, an upper cavity, a lower cavity, a connecting cavity, a support channel, a plug-in channel, a lower pipe, a three-way joint, an upper pipe, a through hole, a patch, a gasket, a jacking rod, a push block, a locking module; the locking module comprises a plug rod, a vertical rod, a horizontal rod, and the safety belt is a waistband type safety belt;

[0041] The airbag is placed in the airbag box which is fixed on the safety belt, the airbag includes an inclined surface and a bottom surface in the expanded state, the gas tank contains high-pressure gas, the connecting head is above the gas tank, the firecracker box is above the connecting head, the firecracker box contains gunpowder and a firing pin, the connecting head is provided with a cavity, the firing pin extends into the cavity, the cavity is connected to the airbag box through the hose;

[0042] The box body includes a box body front wall, the box cover includes a front cover part, the box body and the box cover are pivotally connected, the hose penetrates into the box body and is connected to a tee joint on the inner wall of the box body, the tee joint is also connected to one end of the upper pipe and the lower pipe respectively, the other end of the upper pipe is connected to the airbag, and the other end of the lower pipe is connected to a through hole on the box body front wall.

[0043] The box body front wall includes an upper cavity, a lower cavity and a connecting cavity, the upper cavity extends outward to form a support channel, the lower cavity extends outward to form an insertion channel, the insertion channel is connected to the outside and the lower cavity, the push block is arranged in the lower cavity, the push block divides the lower cavity into a left cavity and a right cavity, and the through hole is connected to the right cavity; the push block is connected with the top rod at the left end, and the left end of the top rod is provided with a gasket; the vertical rod extends from the upper cavity to the left cavity through the connecting cavity, a horizontal rod is arranged above the vertical rod, the horizontal rod includes a left rod part and a right rod part, the insertion rod is connected to the left side of the vertical rod, the insertion rod penetrates into the insertion channel, and the left rod part penetrates into the support channel; the front cover part is provided with a latch at the lower end, the latch is provided with a locking hole, the front cover part abuts against the box body front wall in the buckled state of the airbag box, the latch extends into the upper cavity, the right rod part is inserted into the locking hole, the insertion rod does not extend out of the box body, and the patch is attached to the outside of the box body to prevent the insertion channel from being exposed.

[0044] As shown in the drawings: when the airbag box is opened, the left rod part moves left along the support channel, and the right rod part is separated from the locking hole. In the opened state of the airbag box, the vertical rod abuts against the left end of the connecting cavity. In the opened state of the airbag box, the insertion rod extends out of the box body, and the patch is pushed off. In the locked state of the airbag box, the vertical rod abuts against the right end of the connecting cavity. The bottom surface includes a curved surface connected to the inner wall of the box body. When the car collides, the gunpowder explodes, thereby pushing the firing pin to pierce the closed tank opening of the gas tank, the high-pressure gas sequentially passes through the cavity, the hose, the tee joint, the upper pipe to the airbag, and sequentially passes through the cavity, the hose, the tee joint and the lower pipe to the right cavity. After the high-pressure gas is introduced into the right cavity, the push block is pushed to move left, thereby the top rod abuts against and pushes the vertical rod to move left through the gasket. After the gas is introduced into the airbag, the airbag expands to push the box cover, and the box cover is rotated and opened. The tank opening of the gas tank is provided with a diaphragm matched with the firing pin.

[0045] As shown in Figure 5 When the sensor detects that the acceleration of the car or other indicators exceeds the threshold, the control device issues an instruction and ignites the powder, the striker hits the bottle mouth of the gas tank at high speed under the push of the powder explosion, and pierces the bottle mouth of the gas tank. The high-pressure gas in the gas tank is inflated by the connector and the hose to the safety air bag, which opens rapidly in a very short time.

[0046] The above detailed description is for the specific description of the feasible embodiments of the present application, which is not used to limit the patent scope of the present application. Any equivalent implementation or change without departing from the present application shall be included in the patent scope of the present application.

Claims

1. A belt-type airbag system, characterized in that: The system includes an airbag, an airbag housing, an airbag power source module, a seat belt, and a hose; wherein the airbag power source module includes gunpowder, a firing pin, a connector, and an air tank; the airbag housing includes a housing body, a housing cover, a pin, a locking hole, an upper cavity, a lower cavity, a connecting cavity, a support channel, a plug-in channel, a lower tube, a tee connector, an upper tube, a through hole, a patch, a gasket, a push rod, a push block, and a locking module; the locking module includes a plug rod, a vertical rod, and a horizontal rod; and the seat belt is a lap belt type. When the airbag is not deployed, it is placed in the airbag box, which is fixed to the seat belt. When the airbag is deployed, it includes an inclined surface and a bottom surface. The gas tank contains high-pressure gas. The connector is located above the gas tank. A gunpowder box is set above the connector. The gunpowder box contains gunpowder and a firing pin. The connector has a cavity. The firing pin extends into the cavity. The cavity is connected to the airbag box through the hose. The box body includes a front wall, the box cover includes a front cover portion, the box body and the box cover are pivotally connected, the flexible tube passes through the box body and is connected to a three-way connector on the inner wall of the box body, the three-way connector is also connected to one end of the upper tube and one end of the lower tube respectively, the other end of the upper tube is connected to the airbag, and the other end of the lower tube is connected to a through hole on the front wall of the box body. The front wall of the box includes an upper cavity, a lower cavity, and a connecting cavity. A supporting channel extends outward from the upper cavity, and a insertion channel extends outward from the lower cavity. The insertion channel connects to the outside and the lower cavity. A push block is disposed in the lower cavity, dividing it into a left cavity and a right cavity. A through hole connects to the right cavity. A push rod is connected to the left end of the push block, and a gasket is provided at the left end of the push rod. A vertical rod extends from the upper cavity through the connecting cavity into the left cavity. A horizontal rod is disposed above the vertical rod, and the horizontal rod includes... The left and right rods are connected, with the insertion rod connected to the left side below the vertical rod and passing through the insertion channel. The left rod passes through the support channel. A pin is provided at the lower end of the front cover, and a locking hole is provided on the pin. When the airbag box is fastened, the front cover abuts against the front wall of the box body, the pin extends into the upper cavity, the right rod is inserted into the locking hole, the insertion rod does not extend out of the box body, and the patch is attached to the outside of the box body to prevent the insertion channel from being exposed.

2. The belt-type airbag system according to claim 1, characterized in that: When the airbag box is opened, the left rod moves to the left along the support channel, and the right rod disengages from the locking hole.

3. A belt-type airbag system according to claim 2, characterized in that: With the airbag box open, the vertical rod rests against the left end of the connecting cavity.

4. A belt-type airbag system according to claim 3, characterized in that: When the airbag box is open, the insert rod extends out of the box body, and the patch is pushed down.

5. A belt-type airbag system according to claim 1, characterized in that: With the airbag box locked, the vertical rod abuts against the right end of the connecting cavity.

6. A belt-type airbag system according to claim 1, characterized in that: The bottom surface includes an arc surface, which is connected to the inner wall of the box.

7. A belt-type airbag system according to claim 1, characterized in that: When a car collides, the gunpowder detonates, which pushes the firing pin to puncture the sealed opening of the gas tank. High-pressure gas flows from the gas tank through the cavity, hose, T-joint, and upper pipe to the airbag, and then through the cavity, hose, T-joint, and lower pipe to the right cavity.

8. A belt-type airbag system according to claim 7, characterized in that: After high-pressure gas is introduced into the right cavity, it pushes the push block to move to the left, thereby causing the push rod to abut against the gasket and push the vertical rod to move to the left.

9. A belt-type airbag system according to claim 8, characterized in that: After gas is introduced into the airbag, the right rod disengages from the locking hole at the same time, causing the airbag to inflate and push the cover, which then rotates open.

10. A belt-type airbag system according to claim 1, characterized in that: The gas storage tank has a diaphragm at its opening that cooperates with the impact pin.

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