CN112657078A - Intelligent window breaking device - Google Patents
Intelligent window breaking device Download PDFInfo
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- CN112657078A CN112657078A CN202110027586.0A CN202110027586A CN112657078A CN 112657078 A CN112657078 A CN 112657078A CN 202110027586 A CN202110027586 A CN 202110027586A CN 112657078 A CN112657078 A CN 112657078A
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- shell
- cavity
- window
- ignition
- electrode
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- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000003721 gunpowder Substances 0.000 claims abstract description 13
- 239000011888 foil Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000012212 insulator Substances 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 13
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000000843 powder Substances 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Abstract
The invention relates to an intelligent window breaker, which comprises a shell, wherein the shell comprises an ignition shell, and the ignition shell divides the interior of the shell into a gas generation cavity and an emission cavity; the ignition shell is provided with at least one air outlet hole for communicating the gas generating cavity with the emission cavity, and the ignition shell is also provided with a sealing foil for covering all the air outlet holes; a gunpowder part is arranged in the gas production cavity, a bridge wire is arranged in the gunpowder part, and two ends of the bridge wire are respectively connected with a first electrode and a second electrode which extend out of the shell; a window breaking head is arranged in the launching cavity, matched with the inner wall of the launching cavity and in sliding fit with the shell; a conical head is arranged on one side of the window breaking head away from the gas generating cavity, and a breaking window matched with the conical head is formed in the shell; the device can be arranged beside the automobile glass, and can be used for quickly and effectively breaking the automobile glass by manually pressing the trigger device or automatically detecting and controlling the power on the bridge wire by the sensor when in emergency, so that the safety of passengers is effectively improved.
Description
Technical Field
The invention relates to the technical field of window breakers, in particular to an intelligent window breaker.
Background
With the improvement of living standard, automobile traffic becomes an indispensable part of life, and accidents such as automobile collision, falling into water and the like which affect personal safety sometimes occur. The automobile window is suitable for spontaneous combustion of an automobile, door extrusion during accidents, automobile falling into water and other links, more people can conveniently and rapidly escape from the scene in time and safely, and the number of casualties in safety accidents is reduced.
At present, the safety hammer with mature prior art can realize the functions, but under the general condition, the safety hammer is not easy to store and is easy to lose, and in the actual use process, once a scene is out of control, the time of the glass breaking process of the safety hammer is relatively long, so that the requirement of safe emergency quick response cannot be met. Various installation hammers are sold in the market, the hammer is hung beside a hand to be knocked, a key buckle is provided with a small click to pop up, and the two types of equipment cannot play a real actual role due to time, space and psychological influence during danger in actual use.
Disclosure of Invention
The invention provides an intelligent window breaker aiming at the technical problems in the prior art, which can quickly and effectively break window glass in crisis, and effectively improves the safety of passengers.
The technical scheme for solving the technical problems is as follows: an intelligent window breaker comprises a shell, wherein the shell comprises an ignition shell, and the ignition shell divides the interior of the shell into a gas generation cavity and a launching cavity; the ignition shell is provided with at least one air outlet hole for communicating the air generating cavity with the emission cavity, and the ignition shell is also provided with a sealing foil for covering all the air outlet holes;
a gunpowder part is arranged in the gas production cavity, a bridge wire is arranged in the gunpowder part, and two ends of the bridge wire are respectively connected with a first electrode and a second electrode which extend out of the shell;
a window breaking head is arranged in the launching cavity, matched with the inner wall of the launching cavity and in sliding fit with the shell; one side of the window breaking head, which is far away from the gas generating cavity, is provided with a conical head, and the shell is provided with a window breaking hole matched with the conical head.
The invention has the beneficial effects that: when the bridgewire is electrified through the first electrode and the second electrode, the bridgewire generates heat to initiate the powder part to burn and generate gas, the gas pressure in the gas generation cavity is rapidly increased, the high-temperature gas breaks the sealing foil to enter the launching cavity and push the window breaking head, and the conical head rapidly extends out of the window breaking opening to break the window glass; the device can be arranged beside the automobile glass, and can be used for quickly and effectively breaking the automobile glass by manually pressing the trigger device or automatically detecting and controlling the power on the bridge wire by the sensor when in emergency, so that the safety of passengers is effectively improved.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, a fuel expanding agent is arranged in the gas production cavity.
The beneficial effect of adopting the further scheme is that: the flame-expanding powder can be ignited by the powder part, thereby increasing the output energy and accelerating the striking speed of the window breaking head.
Furthermore, an automatic ignition powder is arranged in the gas production cavity.
The beneficial effect of adopting the further scheme is that: when the window breaker reaches the service life, the window breaker can be placed in a high-temperature environment, the automatic igniter spontaneously ignites to ignite the gunpowder part, and the window breaker is destroyed for use, so that the destruction is convenient.
Further, the shell is provided with an air leakage hole which is communicated with the emission cavity and the outside of the shell; the air leakage hole is positioned on one side of the window breaking head far away from the ignition shell; when the window breaking head is knocked out from the emission cavity, the air leakage hole is positioned at one side of the window breaking head close to the ignition shell.
The beneficial effect of adopting the further scheme is that: when the window breaking head is knocked out, the gas in the emission cavity can be discharged from the gas release hole, and on the premise of not reducing the knocking speed of the window breaking head, the phenomenon that the gas pressure in the emission cavity continuously pushes the window breaking head to enable the window breaking speed to be too high is avoided.
Further, the window breaking head is connected with the shell through an elastic piece; and when the window breaking head is knocked out, the elastic piece is broken.
The beneficial effect of adopting the further scheme is that: the elastic piece ensures that the conical head cannot extend out of the broken window to impact glass at ordinary times, and the elastic piece is broken when being subjected to pressure generated by the gunpowder part to ensure that the conical head is struck out.
Further, the elastic member is a spring connector.
Further, the shell also comprises an upper shell and a lower shell; the upper shell and the lower shell are fixedly connected; the broken window is arranged at the end part of the upper shell far away from the lower shell; the end part of the lower shell, which is far away from the upper shell, is provided with a boss protruding inwards, and the ignition shell is fixedly connected to the outer wall of the boss; the tip of boss is provided with and runs through the insulator of boss, some firearm setting is in the insulator is located tip in the casing, the insulator is located the outer tip of casing is provided with the plug connector, first electrode with the second electrode passes the insulator extends in the plug connector.
The beneficial effect of adopting the further scheme is that: simple structure and convenient assembly.
Furthermore, a spring metal sheet is arranged in the plug connector, and the bottom of the spring metal sheet is fixed on the plug connector; the top of the spring metal sheet is divided into two lobes, wherein one lobe is in contact with the first electrode, and the other lobe is in contact with the second electrode; the resistance of the spring metal sheet is smaller than that of the bridge wire; when a counterpart is inserted into the connector, the spring metal piece is separated from the first and second electrodes.
The beneficial effect of adopting the further scheme is that: the spring metal sheet can enable the bridge wire to be in a short-circuit state during transportation, and the bridge wire is protected from accidental work due to accidental current.
Furthermore, a sealing ring is tightly sleeved on the periphery of the window breaking head and props against the inner wall of the shell.
The beneficial effect of adopting the further scheme is that: the window breaking head is tightly contacted with the upper shell, so that a large amount of air leakage is avoided.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent window breaker according to the present invention;
FIG. 2 is a schematic structural diagram of an ignition part of the intelligent window breaker of the present invention;
FIG. 3 is a schematic structural view of a window breaking head of the intelligent window breaker of the present invention;
fig. 4 is a schematic structural diagram of a plug connector of the intelligent window breaker.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the ignition device comprises a shell, 11, an upper shell, 111, a broken window, 112, an air leakage hole, 12, a lower shell, 121, a boss, 13, an ignition shell, 131, an air outlet hole, 132, a sealing foil, 14, an air generation cavity, 15, a launching cavity, 2, an injection molding body, 21, an insulator, 22, a gunpowder part, 23, a bridge wire, 24, a first electrode, 25, a second electrode, 3, a connector clip, 31, a spring metal sheet, 4, a fuel expanding agent, 5, an automatic ignition agent, 6, a broken window head, 61, a conical head, 62, a sealing ring, 7 and a spring connecting piece.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, an intelligent window breaker includes a housing 1. The housing 1 includes an upper housing 11, a lower housing 12, and an ignition housing 13. Go up casing 11 and be one end open-ended tube-shape, lower casing 12 covers the tip opening of going up casing 11 to it is fixed that last casing 11 and lower casing 12 adopt welded structure, forms the whole appearance of intelligent broken window ware. One end of the lower housing 12, which is far away from the upper housing 11, is provided with a boss 121 protruding inwards, and the ignition housing 13 is in a cylindrical shape with one end open and is sleeved on the boss 121. The ignition housing 13 partitions the interior of the housing 1 into a gas generation chamber 14 between the lower housing 12 and the ignition housing 13 and a firing chamber 15 other than the gas generation chamber 14.
The end of the boss 13 is provided with an injection molded body 2. The injection molding body 2 comprises an insulator 21, the insulator 21 is fixed on the boss 13 in an injection molding mode, one end of the insulator 21 is located in the gas generation cavity 14, the other end of the insulator 21 is located outside the shell 1 and clings to the inner wall of the boss 13 and is flush with the outer wall of the shell 1.
As shown in fig. 2, one end of the insulator 21 located in the gas generation chamber 14 is provided with a powder portion 22. The powder part 22 can be made by mixing the ignition powder head and small black powder, which can generate a large amount of gas when burning, is favorable for establishing ignition pressure, and has good stability. The powder portion 22 may be made of other materials, and is not limited thereto. The gunpowder part 22 is internally provided with a bridge wire 23, and the bridge wire 23 generates heat after being electrified, thereby igniting the gunpowder part 22. The end part of the insulator 21 outside the housing 1 is provided with a plug connector 3, and a first electrode 24 and a second electrode 25 penetrating through the insulator 21 are further arranged in the insulator 21, one ends of the first electrode 24 and the second electrode 25 are respectively connected with two ends of the bridging wire 23, and the other ends of the first electrode and the second electrode both extend into the plug connector 3.
The plug connector 3 is used for connecting the opponent part, and the plug connector 3 and the opponent part are standard products and are special-shaped injection molding parts. As shown in fig. 4, the spring metal piece 31 is provided in the plug-in unit 3. The spring metal sheet 31 can be a copper sheet, the bottom of the spring metal sheet is fixed on the plug connector 3, and the top of the spring metal sheet is divided into two lobes, wherein one lobe is in contact with the first electrode 24, and the other lobe is in contact with the second electrode 25. The resistance of the spring metal sheet 31 is smaller than that of the bridge wire 23, specifically, the resistance of the spring metal sheet 31 is smaller than 0.15 Ω, and the resistance of the bridge wire 23 is 2 Ω. Therefore, the bridge wire is always kept in a short-circuit state in the transportation process, if unexpected current is generated, the unexpected current rarely flows through the bridge wire 23, and almost all the current flows through the spring metal sheet 31, so that the accidental starting of the window breaker is avoided.
The hand piece is a special-shaped structure matched with the connector, does not belong to one part of the window breaker, and belongs to the matching connecting end of the automobile and the window breaker. After the counter element is inserted into the plug-in unit 3, the spring metal sheet 31 is forced to spring open, the spring metal sheet 31 stops contacting the first electrode 24 and the second electrode 25, and the first electrode 24 and the second electrode 25 are directly connected with the counter element. The counter part is connected to a main power supply of the automobile through an electric wire, the main power supply of the automobile can supply power to the bridge wire 23 through the counter part by manually pressing the trigger device, and the switch-on or control system can control the main power supply of the automobile to electrify the bridge wire 23 through the counter part when the sensor detects emergency. The sensor can be a smoke sensor or a pressure sensor or other sensors.
One or both of the diffusion powder 4 and the autoignition powder 5 may also be preferably disposed in the gas generation chamber 14. The ignition improver 4 may be ignited by the powder portion 22 to generate a large amount of gas, thereby increasing output energy. When the window breaker reaches the service life, the window breaker can be placed in a high-temperature environment, the automatic igniter 5 spontaneously ignites to ignite the gunpowder part 22, and the window breaker is destroyed for use, so that the destruction is convenient.
The window breaking head 6 is arranged in the emission cavity 15, the periphery of the window breaking head 6 is in sliding fit with the inner wall of the upper shell 11, and a sealing ring 62 is sleeved at the contact position of the periphery of the window breaking head 6 and the upper shell 11. The sealing ring 62 is fixedly connected to the window breaking head 6 and abuts against the inner wall of the upper shell 11, so that the window breaking head 6 is always kept in close contact with the inner wall of the upper shell 11 in the moving process of the window breaking head 6, and gas is prevented from leaking from one side of the window breaking head 11 to the other side. As shown in fig. 3, a conical head 61 is disposed on a side of the window breaking head 6 away from the ignition housing 13, and a window breaking 111 matched with the conical head 61 is opened at an end of the upper housing 11 away from the lower housing 12. When the gas in the gas generating cavity 14 is flushed into the emission cavity 15 through the gas outlet 131, the gas pushes the window breaking head to move, and the conical head 61 is knocked out from the window breaking opening 111 to impact the glass.
The conical head 61 can be set to a 60-degree sharp angle, so that a window can be better broken, and a phase cone structure similar to a bullet head can be adopted, so that the penetrating power is increased. Preferably, the radius of the break window 111 is smaller than the maximum radius of the conical head 61, so that the conical head 61 can only extend the tip out of the break window 111, thereby ensuring that the conical head can normally impact the glass and preventing the conical head 61 from flying out to hurt people.
The break window head 6 is connected to the ignition housing 13 by an elastic member, in this embodiment a spring connection 7. The spring connecting piece 7 pulls the window breaking head 6, so that the conical head 61 cannot extend out of the window breaking 111 to impact glass at ordinary times; when the gas in the gas generating cavity 14 is flushed into the emission cavity, the spring connecting piece 7 is broken under the pressure of high-temperature and high-pressure gas, so that the conical head 61 smoothly extends out of the window breaking 111 to impact the glass.
A plurality of air release holes 112 are provided on the side wall of the upper housing 11. Normally, the air release holes 112 are located on the side of the window-breaking head 6 away from the ignition housing 13. After the high-temperature high-pressure gas pushes the window breaking head 6 to move for a preset distance in the direction close to the window breaking 111, the air leakage hole 112 comes to one side, close to the ignition shell 13, of the window breaking head 6, the high-temperature high-pressure gas is discharged through the air leakage hole 112, and on the premise that the speed of the window breaking head 6 impacting glass is not reduced, the situation that the high-temperature high-pressure gas continuously pushes the window breaking head 6 to cause that the speed of the window breaking head 6 is too high is avoided.
The method for using the intelligent window breaker comprises the following steps:
the intelligent window breaker of the invention can be installed beside the automobile glass in advance, and a counterpart piece can be inserted. In case of emergency, the main power source of the automobile can be detected and controlled by a manual pressing trigger device or a sensor to electrify the bridgewire 23 through the hand piece. The sensor can be a smoke sensor or a pressure sensor or other sensors.
When the bridge wire 23 is electrified, the bridge wire 23 generates heat to trigger the gunpowder part 22 to burn and generate gas, and the gas pressure in the gas generation cavity 14 is rapidly increased. When the air pressure in the air generating cavity 14 reaches a certain value, the high-temperature and high-pressure air breaks the sealing foil 132 to enter the launching cavity 15 and push the window breaking head 6, so that the conical head 61 rapidly extends out of the window breaking opening 11 to break the window glass.
The intelligent window breaker has a simple structure, is convenient to assemble and install, can conveniently and quickly break the automobile glass in emergency, is used for less than 0.04s in the whole process, and really and effectively ensures the safety of passengers in emergency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The intelligent window breaker is characterized by comprising a shell, wherein the shell comprises an ignition shell, and the ignition shell divides the interior of the shell into a gas generation cavity and a launching cavity; the ignition shell is provided with at least one air outlet hole for communicating the air generating cavity with the emission cavity, and the ignition shell is also provided with a sealing foil for covering all the air outlet holes;
a gunpowder part is arranged in the gas production cavity, a bridge wire is arranged in the gunpowder part, and two ends of the bridge wire are respectively connected with a first electrode and a second electrode which extend out of the shell;
a window breaking head is arranged in the launching cavity, matched with the inner wall of the launching cavity and in sliding fit with the shell; one side of the window breaking head, which is far away from the gas generating cavity, is provided with a conical head, and the shell is provided with a window breaking hole matched with the conical head.
2. The intelligent window breaker according to claim 1, wherein a fuel expansion agent is disposed in the gas generation cavity.
3. The intelligent window breaker according to claim 1, wherein an automatic ignition charge is disposed in the gas generation cavity.
4. The intelligent window breaker according to claim 1, wherein the housing is provided with a gas release hole communicating the emission cavity with the outside of the housing; the air leakage hole is positioned on one side of the window breaking head far away from the ignition shell; when the window breaking head is knocked out from the emission cavity, the air leakage hole is positioned at one side of the window breaking head close to the ignition shell.
5. The intelligent window breaker according to claim 1, wherein the window breaking head is connected to the housing through an elastic member; and when the window breaking head is knocked out, the elastic piece is broken.
6. The intelligent window breaker of claim 5, wherein the resilient member is a spring connector.
7. The intelligent window breaker of claim 1, wherein the housing further comprises an upper housing, a lower housing; the upper shell and the lower shell are fixedly connected; the broken window is arranged at the end part of the upper shell far away from the lower shell; the end part of the lower shell, which is far away from the upper shell, is provided with a boss protruding inwards, and the ignition shell is fixedly connected to the outer wall of the boss; the tip of boss is provided with and runs through the insulator of boss, some firearm setting is in the insulator is located tip in the casing, the insulator is located the outer tip of casing is provided with the plug connector, first electrode with the second electrode passes the insulator extends in the plug connector.
8. The intelligent window breaker according to claim 7, wherein a spring metal sheet is arranged in the plug connector, and the bottom of the spring metal sheet is fixed on the plug connector; the top of the spring metal sheet is divided into two lobes, wherein one lobe is in contact with the first electrode, and the other lobe is in contact with the second electrode; the resistance of the spring metal sheet is smaller than that of the bridge wire; when a counterpart is inserted into the connector, the spring metal piece is separated from the first and second electrodes.
9. The intelligent window breaker according to claim 1, wherein a sealing ring is tightly sleeved around the window breaking head, and the sealing ring abuts against the inner wall of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110027586.0A CN112657078A (en) | 2021-01-10 | 2021-01-10 | Intelligent window breaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110027586.0A CN112657078A (en) | 2021-01-10 | 2021-01-10 | Intelligent window breaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112657078A true CN112657078A (en) | 2021-04-16 |
Family
ID=75414011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110027586.0A Pending CN112657078A (en) | 2021-01-10 | 2021-01-10 | Intelligent window breaking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112657078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599734A (en) * | 2021-09-23 | 2021-11-05 | 诸暨市易佳机械有限公司 | Vehicle window breaking self-rescuer |
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| JPH08156724A (en) * | 1994-12-07 | 1996-06-18 | Nichiyu Giken Kogyo Kk | Window pane breaking tool for vehicle incorporating air bag |
| CN202624134U (en) * | 2012-06-12 | 2012-12-26 | 王建新 | Automatic quick toughened-glass breaking escape device |
| CN203172583U (en) * | 2013-03-28 | 2013-09-04 | 王琳 | Novel automobile escape glass-shattering device |
| CN103481848A (en) * | 2013-09-25 | 2014-01-01 | 长安大学 | Vehicle window-breaking escape system |
| CN204095747U (en) * | 2014-07-31 | 2015-01-14 | 比亚迪股份有限公司 | A kind of gas generator |
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| CN207089069U (en) * | 2017-03-07 | 2018-03-13 | 扬州田尔汽车零部件有限公司 | Carry the automotive headrest of window breaker |
| CN208698720U (en) * | 2018-07-25 | 2019-04-05 | 西安诚乐科工贸有限责任公司 | Window breaker |
| CN211105233U (en) * | 2019-12-02 | 2020-07-28 | 四川华瑞雅汽车安全科技有限公司 | Gas generator with injection molding type base |
-
2021
- 2021-01-10 CN CN202110027586.0A patent/CN112657078A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119157A (en) * | 1994-05-31 | 1996-03-27 | 莫顿国际股份有限公司 | Fluid fueled air bag inflator |
| JPH08156724A (en) * | 1994-12-07 | 1996-06-18 | Nichiyu Giken Kogyo Kk | Window pane breaking tool for vehicle incorporating air bag |
| CN202624134U (en) * | 2012-06-12 | 2012-12-26 | 王建新 | Automatic quick toughened-glass breaking escape device |
| CN203172583U (en) * | 2013-03-28 | 2013-09-04 | 王琳 | Novel automobile escape glass-shattering device |
| CN103481848A (en) * | 2013-09-25 | 2014-01-01 | 长安大学 | Vehicle window-breaking escape system |
| CN204095747U (en) * | 2014-07-31 | 2015-01-14 | 比亚迪股份有限公司 | A kind of gas generator |
| CN205615467U (en) * | 2016-04-24 | 2016-10-05 | 高田（长兴）汽车安全装置有限公司 | Knee protection gas generator for air bag |
| CN207089069U (en) * | 2017-03-07 | 2018-03-13 | 扬州田尔汽车零部件有限公司 | Carry the automotive headrest of window breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113599734A (en) * | 2021-09-23 | 2021-11-05 | 诸暨市易佳机械有限公司 | Vehicle window breaking self-rescuer |
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Application publication date: 20210416 |