Inflation triggering device of wearable air bag

Abstract

The inflation triggering device comprises an air bottle and a generator device, internal threads are arranged at one end of the generator device, external threads matched with the internal threads at one end of the generator device are arranged at one end of the air bottle, and one end of the air bottle is in threaded connection with one end of the generator device; a sealing film used for sealing the gas cylinder is arranged at one end of the gas cylinder, a piercing mechanism is arranged in the generator device and comprises a sliding block, the sliding block is arranged in a cavity of the generator device, a piercing needle is arranged on the sliding block, the outer end of the piercing needle points to the sealing film of the gas cylinder, and a gunpowder packaging block is arranged in a cavity in the other end of the generator device. Gunpowder is packaged in the gunpowder packaging block, a trigger switch mechanism is arranged on the outer side of the other end of the generator device, and when a collision block of the trigger switch mechanism collides with the gunpowder packaging block, the gunpowder in the gunpowder packaging block is ignited. According to the inflation triggering device of the wearable air bag, the air bag inflation speed is high, repeated use can be achieved, and the air bottle is convenient to replace.

Description

Technical Field

[0001] This invention relates to an inflation triggering device for a wearable airbag, belonging to the technical field of sports protective equipment products. Background Technology

[0002] Existing wearable airbags, especially in the field of cycling protective equipment, mostly use traditional mechanical or electronic triggering mechanisms for their inflation triggering devices. These mechanisms still have room for improvement in terms of response speed, reliability, size, weight, and user convenience. For example, traditional mechanical triggering devices may have problems such as fixed triggering force, difficulty in resetting, and large size; while electronic triggering devices may face challenges such as power supply and sensor failure, as well as high cost.

[0003] Furthermore, in emergency situations, the inflation speed of the airbag is crucial. Current technology still has room for improvement in achieving extremely rapid inflation, while simultaneously ensuring miniaturization, reusability, and ease of cylinder replacement – ​​these are pressing issues that need to be addressed in the field of wearable airbag technology. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide an inflation triggering device for a wearable airbag, which can inflate the airbag quickly, is reusable, and allows for convenient replacement of the air cylinder.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: providing an inflation triggering device for a wearable airbag, comprising an air cylinder and a cylindrical generator device. The generator device has an internal cavity, and an air outlet and an air nozzle are provided in the middle of the generator device. The air outlet communicates with the air nozzle and is also connected to the cavity. Openings are provided at both ends of the generator device, and these openings communicate with the cavity. One end of the generator device has an internal thread, and one end of the air cylinder has an external thread that matches the internal thread of one end of the generator device. The end of the air cylinder is threadedly connected to the end of the generator device. One end of the cylinder is provided with a sealing membrane for sealing the gas cylinder. The generator device is provided with a piercing mechanism, which includes a slider that is slidably disposed in the cavity. The slider is provided with a piercing needle, the outer end of which is a sharp point and points towards the sealing membrane of the gas cylinder. The other end of the generator device is provided with a gunpowder packaging block containing gunpowder. The gunpowder packaging block is located outside the slider. The other end of the generator device is provided with a trigger switch mechanism, which includes a striking block. When the striking block strikes the gunpowder packaging block, the gunpowder inside the gunpowder packaging block is ignited.

[0006] Preferably, the outer surface of the slider is in clearance fit with the inner wall of the generator device.

[0007] Preferably, the needle is coaxial with the generator device.

[0008] Preferably, the trigger switch mechanism includes a mounting housing and a pull rope. A mounting plate is disposed inside the mounting housing. A first spring is disposed between the mounting plate and the top of the mounting housing. The impact block is fixed to the bottom of the mounting plate. A first connecting plate is disposed on the mounting plate. A second connecting plate and a third connecting plate are disposed inside the mounting housing. A mounting seat is disposed on the inner wall of the mounting housing. The middle part of the second connecting plate is rotatably connected to the mounting seat via a pin. The upper part of the second connecting plate is rotatably connected to the upper part of the first connecting plate via a second pin. One end of the third connecting plate is rotatably connected to the lower part of the first connecting plate via a third pin. An elongated hole is disposed on the second connecting plate. A fourth pin is disposed at the other end of the third connecting plate, and the fourth pin is located inside the elongated hole. One end of the pull rope passes through the mounting housing and is fixedly connected to the lower end of the second connecting plate.

[0009] Preferably, the top plate of the mounting housing is provided with a threaded hole, and the inner side of the mounting housing is provided with a spring mounting post that can move up and down. The upper end of the first spring is fixed to the bottom of the spring mounting post, and the lower end of the first spring is fixed to the mounting plate. An adjusting bolt is vertically provided above the spring mounting post. The lower end of the adjusting bolt is connected to the threaded hole by a thread, and a locking nut is provided on the adjusting bolt.

[0010] Preferably, the other end of the generator device is provided with a base plate, the base plate has an opening in the middle, and a second spring is provided on the inner side of the base plate. One end of the second spring is fixed to the base plate, and the other end of the second spring is fixed to the slider.

[0011] Preferably, the mounting housing is mounted to the base plate of the generator device by screws.

[0012] Preferably, the trigger switch mechanism includes a mounting housing, and a linearly movable push-pull rod is provided on the side plate of the mounting housing. One end of the push-pull rod passes through the side plate of the mounting housing and is fixedly connected to the impact block, while the other end of the push-pull rod is located outside the mounting housing.

[0013] The beneficial effects of this invention are as follows: The wearable airbag inflation triggering device of this invention inflates the airbag quickly, utilizing the instantaneous explosive force of gunpowder to ensure an extremely short time from triggering to complete airbag inflation, providing users with the most timely protection; it has high reliability, as the gunpowder-driven needle mechanism avoids the risks of traditional spring fatigue or electronic component failure, improving triggering reliability; the adjustable triggering force, reusable mechanical structure, and convenient air cylinder replacement method greatly enhance the user experience; the compact cavity and innovative triggering mechanism make the entire device small in size and light in weight, making it more suitable for wearable equipment applications; the adjustable triggering force allows it to adapt to different riding scenarios and protection needs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0015] Figure 1 This is a schematic diagram of the inflation triggering device for the wearable airbag of the present invention;

[0016] Figure 2 This is a schematic diagram of the trigger switch mechanism in the inflation trigger device of the wearable airbag of the present invention;

[0017] Figure 3 This is a schematic diagram of another embodiment of the inflation triggering device for the wearable airbag of the present invention. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Embodiments of the present invention:

[0020] Please see Figures 1 to 2The wearable airbag inflation triggering device of the present invention includes an air cylinder 1 and a cylindrical generator device 2. The generator device 2 has a cavity 3 inside. An air outlet 201 and an air nozzle 202 are provided in the middle of the generator device 2. The air outlet 201 communicates with the air nozzle 202 and is also connected to the cavity 3. The air nozzle 202 communicates with the wearable airbag for inflating the wearable airbag. Openings 4 are provided at both ends of the generator device 2, and the openings 4 communicate with the cavity 3. One end of the generator device 2 is provided with an internal thread, and one end of the air cylinder 1 is provided with an external thread that matches the internal thread of one end of the generator device 2. One end of the air cylinder 1 is threadedly connected to one end of the generator device 2. One end of the air cylinder 1 is provided with a sealing device for the air cylinder. The generator device 2 has a sealing membrane 5 and a piercing mechanism 6. The piercing mechanism 6 includes a slider 7, which is slidably disposed in the cavity 3. The slider 7 is provided with a needle 8, the outer end of which is a sharp point and points towards the sealing membrane 5 of the gas cylinder 1. The other end of the generator device 2 has a gunpowder packaging block 9, which contains gunpowder 10. The gunpowder packaging block 9 is located outside the slider 7. The other end of the generator device 2 has a trigger switch mechanism 11, which includes a striking block 12. The striking block 12 is clearance-fitted with the opening 4 at one end of the generator device 2. When the striking block 12 strikes the gunpowder packaging block 9, the gunpowder 10 inside the gunpowder packaging block 9 will be ignited.

[0021] Preferably, the outer surface of the slider 7 is in clearance fit with the inner wall of the generator device 2.

[0022] Preferably, the needle 8 is coaxial with the generator device 2.

[0023] Preferably, the trigger switch mechanism 11 includes a mounting housing 13 and a pull rope 14. A mounting plate 15 is disposed inside the mounting housing 13. A first spring 16 is disposed between the mounting plate 15 and the top of the mounting housing 13. The impact block 12 is fixed to the bottom of the mounting plate 15. A first connecting plate 17 is disposed on the mounting plate 15. A second connecting plate 18 and a third connecting plate 19 are disposed inside the mounting housing 13. A mounting base 20 is disposed on the inner wall of the mounting housing 13. The middle part of the second connecting plate 18 is connected to the mounting base 20 via a pin 21. The seat 20 is rotatably connected. The upper part of the second connecting plate 18 is rotatably connected to the upper part of the first connecting plate 17 through the second pin 22. One end of the third connecting plate 19 is rotatably connected to the lower part of the first connecting plate 17 through the third pin 23. The second connecting plate 18 is provided with an elongated hole 24. The other end of the third connecting plate 19 is provided with a fourth pin 25. The fourth pin 25 is located in the elongated hole 24 and can slide in the elongated hole 24. One end of the pull rope 14 passes through the mounting housing 13 and is fixedly connected to the lower end of the second connecting plate 18.

[0024] Preferably, the top plate of the mounting housing 13 is provided with a threaded hole (not shown in the figure), and a spring mounting post 26 that can move up and down is provided inside the mounting housing 13. The upper end of the first spring 16 is fixed to the bottom of the spring mounting post 26, and the lower end of the first spring 16 is fixed to the mounting plate 15. An adjusting bolt 27 is vertically provided above the spring mounting post 26. The lower end of the adjusting bolt 27 is threadedly connected to the threaded hole, and a locking nut 28 is provided on the adjusting bolt 27. Rotating the adjusting bolt 27 causes the adjusting bolt 27 to rise and fall. When the adjusting bolt 27 rises and falls, the spring mounting post 26 rises and falls accordingly. Tightening the locking nut 28 fixes the adjusting bolt 27. This allows adjustment of the compression degree of the first spring 16, thereby changing the tension required to trigger the switch mechanism. The stiffness, pre-compression, and stroke of the spring determine the range of tension adjustment (5-15KG).

[0025] Preferably, the other end of the generator device 2 is provided with a base plate 29, the base plate 29 has an opening in the middle, and a second spring 30 is provided on the inner side of the base plate 29. One end of the second spring 30 is fixed to the base plate 29, and the other end of the second spring 30 is fixed to the slider 7.

[0026] Preferably, the mounting housing 13 is mounted to the base plate 29 of the generator device 2 by screws.

[0027] When using the inflatable airbag in this invention, the gas cylinder 1 filled with carbon dioxide gas is connected to the generator device 2. Specifically, one end of the gas cylinder 1 is screwed into the internal thread section of one end of the generator device 2. Pulling the pull cord 14 pulls the lower end of the second connecting plate 18, causing the second connecting plate 18 to rotate counterclockwise around the pin 21. This, in turn, causes the upper end of the second connecting plate 18 to rotate counterclockwise, and at the same time, the height of the upper end of the second connecting plate 18 decreases, thus generating a downward pressure force on the first connecting plate 17, pressing down on the mounting plate 15 and the impact plate. Block 12, under pressure, moves linearly to impact the gunpowder packaging block 9. The gunpowder 10 inside the packaging block 9 is ignited, generating a large instantaneous explosive force. This propels the slider 7 to slide rapidly within the cavity 3, causing the piercing needle 8 to move forward quickly and pierce the sealing membrane 5 of the gas cylinder 1. Carbon dioxide gas from the gas cylinder 1 is then ejected from the cylinder 1 into the cavity 3 of the generator device 2 and from the outlet 201 through the nozzle 202 into the wearable airbag, thus inflating the airbag. Once inflated, the airbag provides protection to the wearer. The time from triggering to complete airbag inflation is extremely short, providing the user with the most timely protection.

[0028] Another embodiment of the present invention, such as Figure 3As shown, the trigger switch mechanism 11 includes a mounting housing 13. A linearly movable push-pull rod 31 is provided on the side plate of the mounting housing 13. One end of the push-pull rod 31 passes through the side plate of the mounting housing 13 and is fixedly connected to the impact block 12. The other end of the push-pull rod 31 is located outside the mounting housing 13. By manually pushing the push-pull rod 31, the impact block 12 is moved linearly to strike the gunpowder packaging block 9, which can also ignite the gunpowder 10, causing the piercing needle 8 to move forward quickly and pierce the sealing membrane 5 of the gas cylinder 1. The carbon dioxide gas in the gas cylinder 1 is then ejected from the gas cylinder 1 to inflate the wearable airbag.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An inflation triggering device for a wearable airbag, comprising an air cylinder and a cylindrical generator device, wherein the interior of the generator device is a cavity, characterized in that, The generator device has openings at both ends, which communicate with the cavity. A vent and a nozzle are located in the middle of the generator device, with the vent communicating with the nozzle. One end of the generator device has an internal thread, and one end of the gas cylinder has an external thread that matches the internal thread of the generator device. The gas cylinder and the generator device are connected by a thread. One end of the gas cylinder has a sealing membrane for sealing the cylinder. A piercing mechanism is located inside the generator device, including a slider slidably disposed within the cavity. A needle is mounted on the slider, with a sharp outer end pointing towards the sealing membrane of the gas cylinder. A gunpowder packaging block containing gunpowder is located inside the cavity at the other end of the generator device, outside the slider. A trigger switch mechanism, including a striking block, is located outside the other end of the generator device. When the striking block strikes the gunpowder packaging block, the gunpowder inside is ignited.

2. The inflation triggering device for the wearable airbag according to claim 1, characterized in that, The outer surface of the slider is fitted with the inner wall of the generator device with a clearance.

3. The inflation triggering device for the wearable airbag according to claim 2, characterized in that, The needle is coaxial with the generator device.

4. The inflation triggering device for the wearable airbag according to claim 1, characterized in that, The trigger switch mechanism includes a mounting housing and a pull rope. A mounting plate is disposed inside the mounting housing. A first spring is disposed between the mounting plate and the top of the mounting housing. The impact block is fixed to the bottom of the mounting plate. A first connecting plate is disposed on the mounting plate. A second connecting plate and a third connecting plate are disposed inside the mounting housing. A mounting seat is disposed on the inner wall of the mounting housing. The middle part of the second connecting plate is rotatably connected to the mounting seat via a pin. The upper part of the second connecting plate is rotatably connected to the upper part of the first connecting plate via a second pin. One end of the third connecting plate is rotatably connected to the lower part of the first connecting plate via a third pin. An elongated hole is disposed on the second connecting plate. A fourth pin is disposed at the other end of the third connecting plate, and the fourth pin is located inside the elongated hole. One end of the pull rope passes through the mounting housing and is fixedly connected to the lower end of the second connecting plate.

5. The inflation triggering device for the wearable airbag according to claim 4, characterized in that, The top plate of the mounting housing is provided with a threaded hole, and the inner side of the mounting housing is provided with a spring mounting post that can move up and down. The upper end of the first spring is fixed to the bottom of the spring mounting post, and the lower end of the first spring is fixed to the mounting plate. An adjusting bolt is vertically provided above the spring mounting post. The lower end of the adjusting bolt is connected to the threaded hole by a thread, and a locking nut is provided on the adjusting bolt.

6. The inflation triggering device for the wearable airbag according to claim 1, characterized in that, The generator device has a base plate at one end, with an opening in the middle. A second spring is provided on the inner side of the base plate, with one end of the second spring fixed to the base plate and the other end fixed to the slider.

7. The inflation triggering device for a wearable airbag according to claim 6, characterized in that, The mounting housing is attached to the base plate of the generator device by screws.

8. The inflation triggering device for a wearable airbag according to claim 1, characterized in that, The trigger switch mechanism includes a mounting housing, and a linearly movable push-pull rod is provided on the side plate of the mounting housing. One end of the push-pull rod passes through the side plate of the mounting housing and is fixedly connected to the impact block, while the other end of the push-pull rod is located outside the mounting housing.

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