Deflation mechanism, air bag device, air storage equipment and vehicle

Abstract

The utility model discloses a deflation mechanism, gasbag device, gas storage equipment and vehicle, deflation mechanism includes: mechanism body, movable part, movable part can be installed in the mechanism body in movable mode, the high pressure air flow is formed in the buffer chamber after the ignition of ignition piece, and the high pressure air flow is formed in the buffer chamber. High-pressure air flow is suitable for flowing into the expansion chamber from the communicating hole to push the movable part to move outwards from the first movable opening; wherein the first movable opening is provided with a limiting structure, the movable part is suitable for abutting against the limiting structure in a limiting mode when the movable part moves outwards to the maximum position, and a pressure relief opening is further formed in the mechanism body and used for communicating the expansion chamber with the outer side of the mechanism body. According to the deflation mechanism, the rapid and efficient deflation process can be achieved, the deflation mechanism can take effect after being triggered, and the deflation mechanism is safe, reliable, simple in structure, low in cost, capable of directly deflating other devices or equipment and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of gas discharge, in particular to a gas release mechanism, an airbag device with the gas release mechanism, a gas storage device with the gas release mechanism, and a vehicle with the airbag device. Background Art

[0002] The existing structure for deflating an airbag module has no pressure relief port, resulting in a large impact on the stop structure after triggering, with a risk of knocking it off; and the stroke is small. If the stroke is to be increased, the amount of charge needs to be increased, which will cause an increase in internal pressure and a risk of disintegration, with great potential safety hazards; it adopts an integrated housing design, with poor sealing, high process difficulty and cost, and great difficulty in controlling the pre-tightening force; and it cannot be directly applied to the airbag module. It needs to be connected to the airbag module through other components to deflate it, resulting in a complex structure and room for improvement. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a gas release mechanism, which can realize a fast and efficient gas release process, take effect immediately after being triggered, is safe and reliable, has a simple structure, low cost, can directly realize the gas release of other devices or equipment, and has a wide application range.

[0004] The gas release mechanism according to an embodiment of the utility model includes: a mechanism body, an installation space is formed inside the mechanism body, and a first movable port communicating with the installation space is formed at one end of the mechanism body; a movable part, the movable part is movably installed on the mechanism body, at least part of the movable part is located inside the installation space and defines an expansion chamber with the mechanism body, a buffer chamber is formed inside the movable part, an ignition part is installed in the buffer chamber, a communication hole for communicating the buffer chamber with the expansion chamber is formed on the movable part, and after the ignition part is ignited, a high-pressure air flow is formed in the buffer chamber, and the high-pressure air flow is adapted to flow into the expansion chamber from the communication hole to push the movable part to move outwards from the first movable port; wherein, a limiting structure is arranged at the first movable port, the movable part is adapted to be limited and pressed against the limiting structure when moving outwards to the maximum position, and a pressure relief port is further formed on the mechanism body, and the pressure relief port is used for communicating the expansion chamber with the outside of the mechanism body.

[0005] According to the air release mechanism of the embodiment of the present utility model, a high-pressure air flow generated by an ignition component is used to drive a movable component to move relative to the mechanism body, so as to realize a fast and efficient air release process. At the same time, a limiting structure can limit the maximum movement stroke of the movable component, ensure the movement stability of the movable component, and a pressure relief port can timely release the high-pressure gas in the expansion chamber to the external environment, reduce the impact force of the movable component, and prevent damage to the air release mechanism, resulting in the disassembly of the air release mechanism, thereby ensuring the safety and stability of the air release mechanism. Moreover, the air release mechanism can take effect immediately when triggered, is safe and reliable, has a simple structure, low cost, can directly realize the air release of other devices or equipment, and has a wide application range.

[0006] According to the air release mechanism of the embodiment of the present utility model, the movable component includes a pushing part and a push rod part. The pushing part is located in the installation space and defines the expansion chamber with the mechanism body, and the buffer chamber and the communication hole are both formed in the pushing part. Wherein, the other end of the mechanism body forms a second movable port communicating with the installation space, the push rod part passes through the second movable port, one end of the push rod part is connected to the pushing part, and the other end extends outside the mechanism body.

[0007] According to the air release mechanism of the embodiment of the present utility model, the mechanism body includes a main housing and an installation plate part. The main housing defines the installation space and forms the first movable port, and the installation plate part is connected to one end of the main housing and forms the second movable port. Wherein, the installation plate part is also provided with installation holes, and the installation holes are used to be connected with an installation module.

[0008] According to the air release mechanism of the embodiment of the present utility model, the pressure relief port is arranged on the main housing; and / or, the installation plate part is provided with an exhaust hole, and the exhaust hole communicates with the second movable port.

[0009] According to the air release mechanism of the embodiment of the present utility model, there are multiple installation holes, and the multiple installation holes are spaced apart; and / or, the installation plate part is provided with an anti-rotation and anti-misalignment part.

[0010] According to the air release mechanism of the embodiment of the present utility model, the mechanism body includes a main housing and a cover plate. The main housing defines the installation space, and the first movable port is formed at one end of the main housing. The cover plate is connected to the other end of the main housing and forms the second movable port, and the pressure relief port is arranged on the main housing.

[0011] According to the air release mechanism of the embodiment of the present utility model, a first sealing member is arranged in the second movable port, and the first sealing member is sleeved outside the push rod part in a sealing manner; or, a threaded end cover is sleeved outside the main housing, at least part of the end cover is axially opposite to the cover plate, and a first sealing member sleeved outside the push rod part is arranged between the end cover and the cover plate.

[0012] According to the air release mechanism of the embodiment of the present utility model, a sealing groove is further provided on the outer peripheral wall of the pushing part, a second sealing member is arranged in the sealing groove, and at least part of the second sealing member extends outwards to elastically press against the inner peripheral wall of the installation space.

[0013] According to the air release mechanism of the embodiment of the present utility model, the limiting structure is configured as a retaining ring, and the retaining ring is fixedly connected to the inner peripheral wall of the first movable port; alternatively, the limiting structure is configured as a limiting block, an installation sink is formed at the outer end of the first movable port, and the limiting block is fixedly installed at the installation sink; alternatively, a limiting member is further included, the limiting member is threadedly sleeved outside the main housing, and the part of the limiting member axially opposite to the main housing is configured as the limiting structure.

[0014] The present utility model also proposes an airbag device.

[0015] According to the airbag device of the embodiment of the present utility model, it includes an airbag and the air release mechanism described in any one of the above, the airbag is provided with an airbag port, and the movable part is adapted to block or open the airbag port.

[0016] The present utility model also proposes a gas storage device.

[0017] According to the gas storage device of the embodiment of the present utility model, it includes a gas storage member and the air release mechanism described in any one of the above, the gas storage member is provided with an air release port, and the movable part is adapted to block or open the air release port.

[0018] The present utility model also proposes a vehicle.

[0019] According to the vehicle of the embodiment of the present utility model, the airbag device described in any one of the above is provided.

[0020] The advantages of the airbag device, the gas storage device, the vehicle and the above-mentioned air release mechanism over the prior art are the same, and will not be elaborated here.

[0021] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a schematic structural diagram (initial state) of the air release mechanism according to the embodiment of the present utility model from a first perspective;

[0024] Figure 2 is a schematic structural diagram (initial state) of the air release mechanism from the second perspective according to an embodiment of the present utility model;

[0025] Figure 3 is Figure 2 a sectional view (initial state);

[0026] Figure 4 is a schematic structural diagram (triggered state) of the air release mechanism from the second perspective according to an embodiment of the present utility model;

[0027] Figure 5 is Figure 4 a sectional view (triggered state);

[0028] Figure 6 is a schematic structural diagram of the movable part according to an embodiment of the present utility model;

[0029] Figure 7 is Figure 6 a sectional view;

[0030] Figure 8 is a schematic structural diagram of the mechanism body according to an embodiment of the present utility model;

[0031] Figure 9 is Figure 8 a cross-section Figure 1 ;

[0032] Figure 10 is Figure 8 a cross-section Figure 2 ;

[0033] Figure 11 is a schematic structural diagram (initial state) of the air release mechanism according to other embodiments of the present utility model;

[0034] Figure 12 is Figure 11 a sectional view (initial state);

[0035] Figure 13 is a schematic structural diagram (initial state) of the air release mechanism according to other embodiments of the present utility model;

[0036] Figure 14 is Figure 13 a sectional view (initial state);

[0037] Figure 15 is a schematic structural diagram of the main housing according to other embodiments of the present utility model Figure 1 ;

[0038] Figure 16 is a schematic structural diagram of the main housing according to other embodiments of the present utility model Figure 2 ;

[0039] Figure 17 is Figure 16 a sectional view of

[0040] Reference numerals:

[0041] the air release mechanism 100,

[0042] the mechanism body 1, the main housing 11, the installation space 111, the first movable port 112, the pressure relief port 113, the installation sink 1122, the installation plate portion 12, the second movable port 121, the first seal 1211, the installation hole 122, the exhaust hole 123, the anti-rotation and anti-misalignment portion 124, the cover plate 13,

[0043] the movable member 2, the push rod portion 21, the pushing portion 22, the buffer chamber 221, the communication hole 222, the seal groove 223, the second seal 2231, the base 23,

[0044] the expansion chamber 31, the detonator 32, the end cap 33,

[0045] the retaining ring 41, the limiting block 42, the limiting member 43. Detailed implementation manners

[0046] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] Reference will be made below to Figures 1 - 17 describe the air release mechanism 100 according to an embodiment of the present utility model. The air release mechanism 100 can achieve a fast and efficient air release process, which takes effect immediately when triggered, is safe and reliable, has a simple structure, low cost, can directly release air for other devices or equipment, and has a wide range of applications.

[0050] As Figures 1 - 17 shown, the air release mechanism 100 according to an embodiment of the present utility model includes: a mechanism body 1 and a movable member 2.

[0051] An installation space 111 is formed inside the mechanism body 1, and a first movable port 112 communicating with the installation space 111 is formed at one end of the mechanism body 1. That is to say, the inside of the mechanism body 1 is hollow to form the installation space 111 for installing and accommodating the movable member 2 and other components, and an opening, namely the first movable port 112, is provided at one end of the mechanism body 1. The first movable port 112 communicates with the installation space 111 to allow the movable member 2 to move outward from the inside of the mechanism body 1 during movement.

[0052] The movable member 2 is movably installed in the mechanism body 1. At least a part of the movable member 2 is located inside the installation space 111 and defines an expansion chamber 31 with the mechanism body 1. A buffer chamber 221 is formed inside the movable member 2, and an ignition member 32 is installed in the buffer chamber 221. The movable member 2 is formed with a communication hole 222 for communicating the buffer chamber 221 with the expansion chamber 31. After the ignition member 32 is ignited, a high-pressure air flow is formed in the buffer chamber 221, and the high-pressure air flow is adapted to flow into the expansion chamber 31 from the communication hole 222 to push the movable member 2 to move outward from the first movable port 112.

[0053] Specifically, the movable member 2 is installed inside the structure body and can perform relative movement inside the mechanism body 1. Among them, as Figure 3As shown, a part of the movable member 2 is located within the installation space 111, and a part is located outside the installation space 111, and an expansion chamber 31 is defined between the inner wall of the mechanism body 1. The interior of the movable member 2 is hollow to form a buffer chamber 221. The detonator 32 is installed in the buffer chamber 221 and can be ignited to rapidly generate a large amount of gas. That is, when the detonator 32 is triggered, a high-pressure air flow can be rapidly generated in the buffer chamber 221, and the high-pressure air flow is introduced into the expansion chamber 31 through the communication hole 222 on the movable member 2. In this way, the high-pressure gas can push the movable member 2 to move within the installation cavity, and as shown in the figure in the up and down direction, the movable member 2 moves upward, that is, the upper part can move outward through the first movable port 112, and at the same time the lower part moves into the interior of the structure body.

[0054] Among them, a limiting structure is provided at the first movable port 112. The movable member 2 is adapted to be limited and pressed against the limiting structure when moving outward to the maximum position. That is, the limiting structure is used to limit the movement displacement of the movable member 2 to prevent the movable member 2 from moving excessively and disengaging from the installation space 111, resulting in damage to the air release mechanism 100. The mechanism body 1 also forms a pressure relief port 113, and the pressure relief port 113 is used to connect the expansion chamber 31 with the outside of the mechanism body 1. That is, during the movement of the movable member 2, due to the rapid increase in pressure in the expansion chamber 31, the movable member 2 is pushed to move rapidly until it is pressed against the limiting structure, which will cause a great impact on the limiting structure. However, through the setting of the pressure relief port 113, the expansion chamber 31 can be connected to the external environment outside the mechanism body 1, so that the high-pressure gas in the expansion chamber 31 can be released to the external environment in time, adjust the pressure in the expansion chamber 31, reduce the impact force of the movable member 2 on the limiting structure, and prevent damage to the air release mechanism 100 and the disintegration of the air release mechanism 100, thereby ensuring the safety and stability of the air release mechanism 100.

[0055] Among them, it should be noted that the air release mechanism 100 is used to realize the air release of other devices or equipment. When air release is not required, the movable member 2 of the air release mechanism 100 can close other devices or equipment. When air release is required, the movable member 2 of the air release mechanism 100 can move away from other devices or equipment to end the closed state and realize air release.

[0056] In practice, when the air release mechanism 100 is in the initial state and has not started working, that is, when the detonator 32 is in the unignited state, as Figure 3 shown, the upper part of the movable member 2 is located within the installation space 111, and the lower part is located outside the mechanism body 1. At this time, the pressure in the expansion chamber 31 is equal to the external environmental pressure, and the lower part of the movable member 2 can extend into other devices or equipment to close them. When air release is required, as Figure 5As shown, the triggering detonator 32 is ignited. Inside the buffer chamber 221, the detonator 32 burns rapidly, generating a large amount of high-temperature and high-pressure gas. The high-pressure gas flow quickly flows into the expansion chamber 31 through the communication hole 222, pushing the movable member 2 located in the installation space 111 to move outward. That is, the upper part of the movable member 2 moves outward from the first movable port 112, and during the movement, it drives the lower part of the movable member 2 to move into the installation space 111 until the movable member 2 is limited and pressed against the limiting structure. At this time, the movable member 2 stops moving outward. And during the movement, the high-pressure gas in the expansion chamber 31 can flow out from the pressure relief port 113 to the external environment to reduce the impact force of the movable member 2 and ensure the stability of the movable member 2. Thus, the lower part of the movable member 2 leaves the device or equipment that needs to release gas, enabling the internal gas to be discharged and realizing gas release.

[0057] Thus, the high-pressure gas flow generated by the detonator 32 is used to drive the movable member 2 to move relative to the mechanism body 1, realizing a fast and efficient gas release process. At the same time, the limiting structure can limit the maximum movement stroke of the movable member 2 to ensure the movement stability of the movable member 2. The pressure relief port 113 can timely release the high-pressure gas in the expansion chamber 31 to the external environment, reducing the impact force of the movable member 2 and preventing damage to the gas release mechanism 100, resulting in the disintegration of the gas release mechanism 100. Thereby, the safety and stability of the gas release mechanism 100 are ensured. And the gas release mechanism 100 can take effect immediately after being triggered, is safe and reliable, has a simple structure, low cost, can directly realize gas release for other devices or equipment, and has a wide range of applications.

[0058] In some embodiments, the movable member 2 includes a pushing part 22 and a push rod part 21. The pushing part 22 is located in the installation space 111 and defines the expansion chamber 31 with the mechanism body 1. The buffer chamber 221 and the communication hole 222 are both formed in the pushing part 22. Wherein, the other end of the mechanism body 1 forms a second movable port 121 communicating with the installation space 111, and the push rod part 21 passes through the second movable port 121. One end of the push rod part 21 is connected to the pushing part 22 and the other end extends outside the mechanism body 1.

[0059] Specifically, as Figure 7 shown, the movable member 2 includes a pushing part 22 and a push rod part 21. As shown in the up-down direction in the figure, the pushing part 22 is the upper part of the movable member 2, and the push rod part 21 is the lower part of the movable member 2. The lower end of the pushing part 22 and the upper end of the push rod part 21 are closely connected as a whole to ensure the synchronization of their movements. As Figure 3 and Figure 9 shown, the upper end of the mechanism body 1 is provided with an upwardly open first movable port 112, and the first movable port 112 communicates with the installation space 111. The lower end of the structure body is provided with a downwardly open second movable port 121, and the second movable port 121 communicates with the installation space 111.

[0060] Among them, as Figure 3 shown, a communication hole 222 and a buffer chamber 221 are provided on the pushing part 22, and the pushing part 22 is installed in the installation space 111. A certain distance is spaced between its outer wall and the inner wall of the installation space 111 to form an expansion chamber 31. The push rod part 21 is configured as a rod shape, and its diameter size is adapted to the diameter size of the second movable port 121, and its length is greater than the depth of the second movable port 121. Thus, the lower end of the push rod part 21 can pass through the second movable port 121 and extend outside the mechanism body 1, so as to be connected to other devices or equipment to realize the air release function.

[0061] Therefore, through the setting of the pushing part 22, the reliable movement of the movable part 2 is realized. Through the setting of the push rod part 21, not only the overall structural strength and stability of the movable part 2 are enhanced, but also the direct integrated connection with other devices or equipment can be realized without setting other intermediate connection structures, which is simple and convenient, can reduce the space occupation, has a high integration degree, and reduces the cost.

[0062] In actual movement, when the detonator 32 is triggered by ignition in the buffer chamber 221 and generates high-pressure air flow, the high-pressure air flow can quickly flow into the expansion chamber 31 through the communication hole 222, and push the pushing part 22 to move outward. Since the pushing part 22 is closely connected to the push rod part 21, when the pushing part 22 moves, it will drive the push rod part 21 to move together. During the movement, the pushing part 22 located in the installation space 111 moves outward and leaves the installation space 111 through the first movable port 112, and the push rod part 21 located outside the installation space 111 enters the installation space 111 through the second movable port 121 until the pushing part 22 moves to the maximum position, that is, when the pushing part 22 presses against the limiting structure, the movement ends, and the air release function can be realized.

[0063] In actual design, the diameter and length of the push rod part 21 can be flexibly adjusted to meet the actual use requirements.

[0064] In some embodiments, the mechanism body 1 includes a main housing 11 and a mounting plate portion 12. The main housing 11 defines an installation space 111 and forms a first movable port 112. The mounting plate portion 12 is connected to one end of the main housing 11 and forms a second movable port 121. Among them, the mounting plate portion 12 is further provided with a mounting hole 122 for connecting with a mounting module.

[0065] Specifically, as Figure 8 and Figure 9 shown, the mechanism body 1 includes a main housing 11 and a mounting plate portion 12. As shown in the up-down direction in the figure, the main housing 11 is located in the upper part, and the mounting plate portion 12 is located in the lower part. As Figure 2As shown, the main housing 11 can be configured as a cylindrical structure, hollow inside to form an installation space 111, and an upper end of the main housing 11 is provided with a first movable opening 112 that opens outward and communicates with the installation space 111. The mounting plate portion 12 is configured as a plate shape, and mounting holes 122 are further provided on the mounting plate. Connecting members can be passed through the mounting holes 122. The mounting module can be correspondingly provided with holes corresponding to the mounting holes, so that the mounting module and the air release mechanism 100 can be tightly and reliably connected through the connecting members. And the mounting plate portion 12 is provided with a second movable opening 121 that penetrates along its thickness direction, and the second movable opening 121 communicates with the installation space 111.

[0066] In actual design, the main housing 11 and the mounting plate portion 12 can be welded together, and the pushing portion 22 and the push rod portion 21 can be welded together to improve the overall structural strength of the air release structure, thereby enhancing its movement reliability and safety. The mounting holes 122 can be set as threaded through holes, etc., so as to pass through connecting members such as bolts and screws to achieve reliable connection.

[0067] In some embodiments, a pressure relief port 113 is provided on the main housing 11, and an exhaust hole 123 is provided on the mounting plate portion 12, and the exhaust hole 123 communicates with the second movable opening 121.

[0068] That is to say, when the air release mechanism 100 is in the initial state, the push rod portion 21 penetrates through the second movable opening 121, so that the exhaust hole 123 and the second movable opening 121 are in a non-communicating state. When the detonating member 32 is ignited and triggered in the buffer chamber 221 to generate high-pressure air flow, and the high-pressure air flow flows into the expansion chamber 31 and pushes the pushing portion 22 to move outward, the high-pressure gas in the expansion chamber 31 can flow out through the pressure relief port 113 on the main housing 11 to the external environment to reduce the pressure in the expansion chamber 31 and reduce the impact force of the movable part 2. At the same time, the push rod portion 21 moves toward the installation space 111, avoiding the second movable opening 121, so that the exhaust hole 123 communicates with the second movable opening 121. Thus, the gas discharged from the device or equipment that needs to exhaust can flow through the exhaust hole 123 to the external environment to achieve exhaust.

[0069] Specifically, as Figure 9 shown, a pressure relief port 113 that penetrates along the thickness direction of the main housing 11 is provided, and an exhaust hole 123 that penetrates along its transverse direction, that is, the left-right direction as shown in the figure, is provided on the mounting plate portion 12, and the exhaust hole 123 communicates with the second movable opening 121. Among them, the size of the exhaust hole 123 can be flexibly designed according to different exhaust speed requirements. It can be understood that the larger the size of the exhaust hole 123 is set, the higher the exhaust speed is, and the smaller the size of the exhaust hole 123 is set, the lower the exhaust speed is.

[0070] In some embodiments, there are multiple mounting holes 122, that is, the mounting holes 122 can be set to two, three, four or even more, and the multiple mounting holes 122 are spaced apart. In this way, there can be multiple evenly distributed mounting points on the mounting plate portion 12, so that the mounting plate portion 12 can be stably and reliably connected to the mounting module by passing multiple connectors through the multiple mounting holes 122, thereby ensuring the mounting stability and reliability of the air release mechanism 100.

[0071] Specifically, as Figure 8 shown, there are two mounting holes 122 provided on the mounting plate portion 12, and as shown in the up-down direction in the figure, the two mounting holes 122 are spaced apart and distributed on both sides of the main housing 11, one is distributed on the upper side and one is distributed on the lower side. Thus, the entire mounting plate portion 12 can be stably mounted, thereby realizing the stable mounting of the air release mechanism 100 on the mounting module.

[0072] In some embodiments, the mounting plate portion 12 is provided with an anti-rotation and anti-misalignment portion 124. Setting the anti-rotation and anti-misalignment portion 124 can prevent the mounting plate portion 12 from rotating, shifting, etc., resulting in its mounting misalignment, thereby realizing the precise and stable mounting of the mounting plate portion 12 and ensuring the reliability of the air release structure.

[0073] Specifically, as Figure 8 shown, a notch is formed by concave inward on one side of the mounting plate portion 12 to form the anti-rotation and anti-misalignment portion 124. Thus, the notch can be snapped into the mounting module to maintain the mounting stability between the mounting plate portion 12 and the mounting module. Of course, it can also be set as a protruding portion and cooperated with the mounting module to prevent misalignment. Or, it can also be set as an anti-rotation and anti-misalignment portion 124 with other shaped structures, as long as it can prevent misalignment.

[0074] In practice, multiple anti-rotation and anti-misalignment portions 124 can also be provided to improve the effect of precise positioning installation and anti-rotation misalignment.

[0075] In some embodiments, the mechanism body 1 includes a main housing 11 and a cover plate 13. The main housing 11 defines an installation space 111, and a first movable opening 112 is formed at one end of the main housing 11. The cover plate 13 is connected to the other end of the main housing 11 and forms a second movable opening 121. The pressure relief opening 113 is provided on the main housing 11.

[0076] Specifically, as Figure 11 and Figure 12As shown, the mechanism body 1 includes a main housing 11 and a cover plate 13. Both ends of the main housing 11 are open, and the interior is hollow to form an installation space 111. In the left - right direction shown in the figure, a first movable opening 112 is formed at the right end of the main housing 11. The cover plate 13 is connected to the left end of the main housing 11 and forms a second movable opening 121 so that the push rod portion 21 can pass through the second movable opening 121 and the push rod portion 21 can be pre - tightened. The pressure relief port 113 is provided on the main housing 11 and penetrates along the thickness direction of the main housing 11. The pushing portion 22 is located inside the installation space 111, and the push rod portion 21 is located outside the installation space 111. In actual design, the main housing 11 and the cover plate 13 can be connected by welding to improve the overall structural strength of the mechanism body 1.

[0077] The structure of the mechanism body 1 in this embodiment is simple and highly reliable. The push rod portion 21 of the air release mechanism 100 can be directly connected to other devices or equipment that need to release air. When the moving part 2 moves to the maximum position, air release is achieved.

[0078] In some embodiments, a first seal 1211 is provided in the second movable opening 121. The first seal 1211 is sleeved outside the push rod portion 21 in a sealed manner. That is, the first seal 1211 can be configured as a ring, such as an O - ring, a gasket, etc. Thus, the first seal 1211 can be sleeved outside the push rod portion 21 in a sealed manner and tightly pressed between the inner peripheral wall of the second movable opening 121 and the outer peripheral wall of the push rod portion 21 to achieve reliable sealing and pre - tightening of the push rod portion 21, prevent external moisture, dust, etc. from entering the installation space 111 and prevent pressure leakage in the installation space 111. Thereby, the waterproof and dust - proof performance can be improved and sufficient pressure can be ensured to push the moving part 2 to move. At the same time, the deviation and slipping out of the moving part 2 can be prevented, ensuring a stable state in the initial state. In actual design, the first seal 1211 and the push rod portion 21 can be set to an interference fit so that the first seal 1211 and the push rod portion 21 are more closely fitted and connected, thereby improving the sealing and pre - tightening effect.

[0079] Specifically, as Figure 12 shown, the cover plate 13 forms a second movable opening 121. The push rod portion 21 passes through the second movable opening 121, and a first seal 1211 is provided inside the second movable opening. The first seal 1211 is tightly pressed between the inner peripheral wall of the second movable opening 121 and the outer peripheral wall of the push rod portion 21 to achieve reliable sealing and pre - tightening.

[0080] Alternatively, a threaded - fitting end cap 33 is sleeved outside the main housing 11. At least part of the end cap 33 is axially aligned with the cover plate 13, and a first seal 1211 sleeved outside the push rod portion 21 is provided between the end cap 33 and the cover plate 13.

[0081] Specifically, as Figures 13 - 15As shown, an external thread is provided on the outer peripheral wall of the main housing 11. The end cover 33 can be configured as a cylindrical shape with one side open to match the shape and size of the main housing 11. An internal thread adapted to the external thread is provided on the inner peripheral wall of the end cover 33. Thus, the end cover 33 can be sleeved outside the main housing 11 and threadedly engaged with the main housing 11. A connection hole communicating with the second movable port 121 is provided on one side of the end cover 33. Thus, the push rod portion 21 can sequentially pass through the second movable port 121 on the cover plate 13 and the connection hole on the end cover 33 and extend to the outside. Therefore, through the threaded engagement of the main housing 11 and the end cover 33, the installation and disassembly between the main housing 11 and the end cover 33 can be facilitated, which is flexible and convenient. The end cover 33 can protect the main housing 11 and improve the structural strength and stability of the mechanism body 1.

[0082] As Figure 14 As shown in the left - right and up - down directions, the left - hand part of the end cover 33 is axially aligned with the left end of the cover plate 13. A first seal 1211 sleeved outside the push rod portion 21 is provided between the end cover 33 and the cover plate 13. The first seal 1211 can be configured as a ring shape, for example, an O - ring, a gasket, etc. The left and right ends of the first seal 1211 are tightly pressed between the end cover 33 and the cover plate 13. The inner peripheral wall and the outer peripheral wall of the first seal 1211 are respectively tightly pressed between the outer peripheral wall of the push rod portion 21 and the inner peripheral wall of the second movable port 121 to achieve the sealing and pre - tightening of the push rod portion 21. With such a setting, the sealing performance is greatly enhanced, the pre - tightening force is increased, and the detachment of the first seal 1211 can also be prevented.

[0083] Therefore, by providing the first seal 1211 in the second movable port 121, the stability and sealing performance of the movable part 2 in the initial state are greatly improved, the slipping out of the movable part 2 is prevented, and the first seal 1211 is installed separately and will not fall off. In practice, when the stroke of the movable part 2 increases, the charge amount of the detonator 32 will also increase, and the impact force will correspondingly increase. The interference amount between the first seal 1211 and the push rod portion 21 can be increased, that is, the compression amount of the first seal 1211 is increased, so that it is more tightly pressed between the second movable port 121 and the push rod portion 21, further improving the sealing performance and increasing the pre - tightening force.

[0084] In some embodiments, a sealing groove 223 is further provided on the outer peripheral wall of the pushing portion 22. A second seal 2231 is provided in the sealing groove 223. At least a part of the second seal 2231 extends outwardly to elastically press against the inner peripheral wall of the installation space 111. That is, the second seal 2231 can be configured as a ring, for example, an O-ring, a gasket, etc. And the size of the second seal 2231 is adapted to the size of the sealing groove 223. Thus, the second seal 2231 can be disposed in the sealing groove 223 and partially extend out of the sealing groove 223, so that it tightly presses against the inner peripheral wall of the installation space 111 and the inner wall of the sealing groove 223. And the second seal 2231 has a certain elasticity and can undergo extrusion deformation, improving the sealing and preloading effects. Therefore, through the setting of the second seal 2231, the inside of the air release mechanism 100 can be effectively sealed, preventing the internal pressure leakage from affecting the movement of the moving part 2, and preventing the flame from spraying out after the ignition element 32 is ignited, causing potential safety hazards.

[0085] In actual design, the second seal 2231 and the pushing portion 22 can be set to have an interference fit, so that the second seal 2231 and the pushing portion 22 are more closely fitted and connected, thereby improving the sealing and preloading effects. When the stroke of the moving part 2 increases, the charge amount of the ignition element 32 will also increase, and the impact force will be correspondingly increased. The interference amount between the second seal 2231 and the push rod portion 21 can be increased, that is, the compression amount of the second seal 2231 is increased, so that it more tightly presses between the inner peripheral wall of the installation space 111 and the inner wall of the sealing groove 223, further improving the sealing performance and increasing the preloading force.

[0086] In some embodiments, the limiting structure is configured as a retaining ring 41, and the retaining ring 41 is fixedly connected to the inner peripheral wall of the first moving port 112.

[0087] Specifically, as Figure 12 shown, the mechanism body 1 includes a main housing 11 and a cover plate 13. A first moving port 112 is formed at one end of the main housing 11. The limiting structure is configured as a retaining ring 41. As shown in the left-right direction in the figure, a base 23 is provided at the right end of the pushing portion 22. The base 23 and the moving part 2 can be connected by welding and a buffer chamber 221 is formed. The ignition element 32 is installed in the buffer chamber 221 and can be riveted to the base 23. The retaining ring 41 is fixedly connected to the inner peripheral wall of the first moving port 112 and can be connected by welding to improve the structural strength and connection reliability.

[0088] With such a setting, when the air release mechanism 100 is in the initial state, the retaining ring 41 is pressed between the inner peripheral wall of the first movable port 112 and the outer peripheral wall of the base 23 to pre-tighten the pushing portion 22. When the detonator 32 is ignited and triggered, when the pushing portion 22 moves to the maximum position, it can be in limit pressing contact with the retaining ring 41, thereby restricting the further movement of the movable member 2 and achieving the stopping of the movable member 2. In actual design, the retaining ring 41 can be in interference fit with the inner peripheral wall of the first movable port 112 to pre-tighten the pushing portion 22 and prevent it from slipping out.

[0089] Thus, by separately arranging the limiting structure and the sealing structure, namely the first seal 1211 and the second seal 2231, with the first seal 1211 and the second seal 2231 installed separately and the limiting structure installed separately, the process difficulty and manufacturing cost are reduced, and the problems of increased process difficulty and manufacturing cost caused by the need to simultaneously achieve limiting stop, pre-tightening and sealing at the port in the traditional integral housing design are solved.

[0090] In some other embodiments, the limiting structure is configured as a limiting block 42, and an installation sink 1122 is formed at the outer end of the first movable port 112, and the limiting block 42 is fixedly installed at the installation sink 1122.

[0091] Specifically, as Figure 3 and Figure 5 shown, the mechanism body 1 includes a main housing 11 and a mounting plate portion 12. A first movable port 112 is formed at one end of the main housing 11. The limiting structure is configured as a limiting block 42. As shown in the up-down direction in the figure, a base 23 is provided at the upper end of the pushing portion 22. The base 23 and the pushing portion 22 can be connected by welding and a buffer chamber 221 is formed. The detonator 32 is installed in the buffer chamber 221 and can be riveted to the base 23. Among them, as Figure 3 and Figure 5 shown, an installation sink 1122 is formed at the outer end of the first movable port 112, and the limiting block 42 is fixedly installed at the installation sink 1122 and can be connected by welding to improve the structural strength and connection reliability, and at least part of the limiting block 42 extends out of the installation sink 1122, and at least part of the lower end of the pushing portion 22 protrudes.

[0092] With such a setting, when the air release mechanism 100 is in the initial state, the limiting block 42 is in pressing contact with the base 23 to pre-tighten the pushing portion 22, and the lower end of the pushing portion 22 is in pressing contact with the inner peripheral wall of the installation space 111. When the detonator 32 is ignited and triggered, when the pushing portion 22 moves to the maximum position, the lower end of the pushing portion 22 is in pressing contact with the limiting block 42, thereby restricting the further movement of the movable member 2 and achieving the stopping of the movable member 2. In actual design, the limiting block 42 can be in interference fit with the inner peripheral wall of the first movable port 112 and the base 23 to pre-tighten the pushing portion 22 and prevent it from slipping out.

[0093] In some other embodiments, the deflation mechanism 100 further includes a limiting member 43. The limiting member 43 is threadedly sleeved outside the main housing 11, and the portion of the limiting member 43 axially facing the main housing 11 is configured as a limiting structure.

[0094] Specifically, as Figure 13 and Figure 14 shown, an external thread is provided on the outer peripheral wall of the main housing 11. The limiting member 43 can be configured as a cylindrical shape with one side open to be adapted to the shape and size of the main housing 11, and an internal thread adapted to the external thread is provided on the inner peripheral wall of the limiting member 43. Thus, the limiting member 43 can be sleeved outside the main housing 11 and is in threaded cooperation with the main housing 11. As shown in the left - right direction in the figure, the portion of the limiting member 43 radially opposite to the main housing 11 is in threaded cooperation. The right - hand portion of the limiting member 43 axially faces the right end of the main housing 11 and partially protrudes inward. This portion is configured as a limiting structure, and at least a part of the lower end of the pushing portion 22 protrudes.

[0095] With such a setting, when the deflation mechanism 100 is in the initial state, the inner peripheral wall of the right - hand portion of the limiting member 43 can tightly press against the base 23 to pre - tighten the pushing portion 22. The lower end of the pushing portion 22 presses against the inner peripheral wall of the installation space 111. When the detonator 32 is ignited and triggered, when the pushing portion 22 moves to the maximum position, the lower end of the pushing portion 22 is in limiting pressure contact with the right - hand portion of the limiting member 43, thereby restricting the further movement of the moving part 2 and achieving the stop of the moving part 2. In actual design, the right - hand portion of the limiting member 43 can be in interference fit with the base 23 to pre - tighten the pushing portion 22 and prevent it from slipping out.

[0096] The present utility model further proposes an airbag device.

[0097] The airbag device according to the present utility model includes an airbag and the deflation mechanism 100 of any one of the above - mentioned embodiments. The airbag is provided with an airbag opening, and the moving part 2 is adapted to block or open the airbag opening.

[0098] That is to say, the shape and size of the push rod portion 21 of the moving part 2 are adapted to the shape and size of the airbag opening. The diameter and length of the push rod portion 21 can be flexibly adjusted to meet the adaptability with the airbag opening. Thus, when the deflation mechanism 100 is in the initial state, the push rod portion 21 can extend into the airbag opening to block the airbag opening, ensuring the normal use of the airbag, preventing the leakage of the gas inside the airbag, maintaining the internal pressure stability, and thereby realizing the protection of the airbag device for people.

[0099] When it is necessary to release the gas inside the airbag, the trigger detonator 32 is triggered to ignite. Inside the buffer chamber 221, the detonator 32 burns rapidly to generate a large amount of high-temperature and high-pressure gas. The high-pressure gas flow quickly flows into the expansion chamber 31 through the communication hole 222, pushing the movable member 2 located in the installation space 111 to move outward, that is, pushing the pushing portion 22 to move outward from the first movable port 112, and driving the push rod portion 21 to move into the installation space 111 during the movement until the pushing portion 22 is limited and pressed against the limiting structure. At this time, the movable member 2 stops moving outward. And during the movement, the high-pressure gas in the expansion chamber 31 can flow out from the pressure relief port 113 to the external environment to reduce the impact force of the movable member 2. The seal can prevent the internal gas and flame from leaking, thus ensuring the stability and reliability of the movable member 2. Thereby, the push rod portion 21 of the movable member 2 can smoothly and quickly leave the airbag opening, thus opening the airbag opening, enabling the gas in the airbag to be smoothly discharged through the airbag opening, and realizing the rapid deflation of the airbag.

[0100] Thus, by integrally arranging the airbag and the deflation mechanism 100, the rapid deflation of the airbag is achieved, and the structure is simple, the integration degree is high, the cost is low, and it is safe and reliable.

[0101] The present utility model also proposes a gas storage device.

[0102] According to the gas storage device of the present utility model, it includes a gas storage member and the deflation mechanism 100 of any one of the above embodiments. The gas storage member is provided with a deflation port, and the movable member 2 is adapted to block or open the deflation port.

[0103] That is to say, the high-pressure gas is stored inside the gas storage member, and the gas storage member is provided with a deflation port. The shape and size of the push rod portion 21 of the movable member 2 are adapted to the shape and size of the deflation port, that is, the diameter and length of the push rod portion 21 can be flexibly adjusted to meet the adaptability with the deflation port. Thus, when the deflation mechanism 100 is in the initial state, the push rod portion 21 can extend into the deflation port to block the deflation port, ensuring the normal use of the gas storage member and preventing the internal gas of the gas storage member from leaking.

[0104] When it is necessary to release the gas inside the gas storage member, the detonator 32 is triggered to ignite. Inside the buffer chamber 221, the detonator 32 burns rapidly to generate a large amount of high-temperature and high-pressure gas. The high-pressure gas flow quickly flows into the expansion chamber 31 through the communication hole 222, pushing the movable member 2 located inside the installation space 111 to move outward, that is, pushing the pushing portion 22 to move outward from the first movable port 112, and driving the push rod portion 21 to move into the installation space 111 during the movement until the pushing portion 22 is limited and pressed against the limiting structure. At this time, the movable member 2 stops moving outward. And during the movement, the high-pressure gas in the expansion chamber 31 can flow out from the pressure relief port 113 to the external environment to reduce the impact force of the movable member 2. The seal can prevent the internal gas and flame from leaking, thereby ensuring the stability and reliability of the movable member 2. Thus, the push rod portion 21 of the movable member 2 can smoothly and quickly leave the gas release port, thereby opening the gas release port, so that the gas in the gas storage can be smoothly discharged through the gas release port, realizing the rapid gas release of the gas storage member.

[0105] Thus, by integrally arranging the gas storage member and the gas release mechanism 100, the rapid gas release of the gas storage member is realized, and the structure is simple, the integration degree is high, the cost is low, and it is safe and reliable.

[0106] The present utility model also proposes a vehicle.

[0107] The vehicle according to the present utility model is provided with the airbag device of the above embodiment.

[0108] By arranging the airbag device in the vehicle, using the movable member 2 to block the airbag port to ensure the stable pressure inside the airbag and the normal use of the airbag, so as to reduce the injury to the occupant, realize the effective protection of the occupant, and using the movable member 2 to open the airbag port to ensure that the gas in the airbag can be quickly discharged, realizing rapid gas release and reducing the excessive extrusion of the occupant, thereby improving the reliability and safety of the vehicle.

[0109] Among them, the high-pressure gas flow generated by the detonator 32 is used to drive the movable member 2 to move relative to the mechanism body 1 to realize a rapid and efficient gas release process. At the same time, the limiting structure can limit the maximum movement stroke of the movable member 2 to ensure the movement stability of the movable member 2. The pressure relief port 113 can timely release the high-pressure gas in the expansion chamber 31 to the external environment, reduce the impact force of the movable member 2, and prevent damage to the gas release mechanism 100, resulting in the disintegration of the gas release mechanism 100, thereby ensuring the safety and stability of the gas release mechanism 100. And the gas release mechanism 100 can take effect immediately after being triggered, is safe and reliable, has a simple structure, and a low cost.

[0110] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0111] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A deflation mechanism, characterized in that: include: A mechanism body, wherein an installation space is formed in the mechanism body, and a first movable opening communicating with the installation space is formed at one end of the mechanism body; A movable component, the movable component can be movably installed on the mechanism body, at least part of the movable component is located in the installation space and defines an expansion chamber with the mechanism body, a buffer chamber is formed in the movable component, an ignition component is installed in the buffer chamber, a connecting hole for connecting the buffer chamber and the expansion chamber is formed in the movable component, and a high-pressure airflow is formed in the buffer chamber after the ignition component is ignited, and the high-pressure airflow is suitable for flowing from the connecting hole into the expansion chamber to push the movable component to move outward from the first movable port; Wherein, a limiting structure is provided at the first movable opening, and the movable component is suitable for being limited and pressed against the limiting structure when moving outward to the maximum position. The mechanism body is also formed with a pressure relief port, and the pressure relief port is used to connect the expansion chamber with the outside of the mechanism body.

2. The deflation mechanism according to claim 1, characterized in that: The movable component comprises a pushing portion and a push rod portion, the pushing portion is located in the installation space and defines the expansion chamber with the mechanism body, and the buffer chamber and the communicating hole are both formed in the pushing portion; Among them, the other end of the mechanism body is formed with a second movable opening connected to the installation space, the push rod part is inserted into the second movable opening, one end of the push rod part is connected to the pushing part and the other end extends out of the mechanism body.

3. The deflation mechanism according to claim 2, characterized in that: The mechanism body comprises a main housing and a mounting plate portion, wherein the main housing defines the mounting space and forms the first movable opening, and the mounting plate portion is connected to one end of the main housing and forms the second movable opening; Wherein, the mounting plate portion is also provided with a mounting hole, and the mounting hole is used to be connected to the mounting module.

4. The deflation mechanism according to claim 3, characterized in that: The pressure relief port is provided on the main housing; And / or, the mounting plate portion is provided with an exhaust hole, and the exhaust hole is communicated with the second movable port.

5. The deflation mechanism according to claim 3, characterized in that: There are multiple mounting holes, and the multiple mounting holes are spaced apart and distributed; And / or, the mounting plate portion is provided with an anti-rotation and anti-error portion.

6. The deflation mechanism according to claim 2, characterized in that: The mechanism body includes a main shell and a cover plate, the main shell defines the installation space, and the first movable port is formed at one end of the main shell, the cover plate is connected to the other end of the main shell and forms the second movable port, and the pressure relief port is arranged in the main shell.

7. The deflation mechanism according to claim 6, characterized in that: A first sealing member is disposed in the second movable opening, and a sealing sleeve of the first sealing member is disposed outside the push rod portion; Alternatively, the main shell body is provided with a threaded end cover, at least a portion of the end cover is axially opposite to the cover plate, and a first sealing member sleeved outside the push rod portion is provided between the end cover and the cover plate.

8. The deflation mechanism according to claim 3 or 6, characterized in that: The outer peripheral wall of the pushing portion is further provided with a sealing groove, in which a second sealing member is provided, and at least a portion of the second sealing member extends outward to elastically press against the inner peripheral wall of the installation space.

9. The deflation mechanism according to claim 3 or 6, characterized in that: The limiting structure is configured as a retaining ring, and the retaining ring is fixedly connected to the inner peripheral wall of the first movable opening; Alternatively, the limiting structure is a limiting block, an outer end of the first movable opening is formed with a mounting groove, and the limiting block is fixedly installed at the mounting groove; Alternatively, it further comprises a limiting member, which is threadedly sleeved outside the main housing, and a portion of the limiting member axially facing the main housing is constructed as the limiting structure.

10. An airbag device, characterized in that: The invention comprises an airbag and the deflation mechanism according to any one of claims 1 to 9, wherein the airbag is provided with an airbag opening, and the movable component is suitable for blocking or opening the airbag opening.

11. A gas storage device, characterized in that: It comprises an air storage component and the air release mechanism according to any one of claims 1 to 9, wherein the air storage component is provided with an air release port, and the movable component is suitable for blocking or opening the air release port.

12. A vehicle, characterized in that: An airbag device according to claim 10 is provided.

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