CN111547004A - Safety airbag device capable of adjusting internal pressure - Google Patents
Safety airbag device capable of adjusting internal pressure Download PDFInfo
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- CN111547004A CN111547004A CN202010444796.5A CN202010444796A CN111547004A CN 111547004 A CN111547004 A CN 111547004A CN 202010444796 A CN202010444796 A CN 202010444796A CN 111547004 A CN111547004 A CN 111547004A
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- hole
- internal pressure
- release mechanism
- cylinder body
- release
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- 238000009434 installation Methods 0.000 claims abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/239—Inflatable members characterised by their venting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention relates to an internal pressure adjustable safety airbag device, which comprises an airbag body and an installation shell thereof, wherein the airbag body is provided with a first air release hole, and the internal pressure adjustable safety airbag device is characterized in that: be equipped with the second and leak the hole on the gasbag body, the gasbag is this internal to be connected with the subassembly that loses heart corresponding to the second and loses heart hole department, is equipped with the release mechanism through ECU control on the installation casing, it is connected with release mechanism through the stretching strap to lose heart subassembly one end for when the vehicle head-on collision takes place and driver and crew's figure proportion is less, it is released by release mechanism to lose heart subassembly to open the second hole that loses heart and realize disappointing fast. The beneficial effects are that: the ignition action of the gas generator of the ECU control release mechanism enables the air leakage assembly to be released by the release mechanism, so that the second air leakage hole is opened, high-pressure gas filled into the airbag body is discharged more quickly through the first air leakage hole and the second air leakage hole, the internal pressure of the airbag is reduced, and the personal safety of drivers and passengers is protected.
Description
Technical Field
The present invention relates to an airbag device, and more particularly to an airbag device capable of adjusting internal pressure.
Background
As is well known, the frontal collision airbags of automobiles (driver airbags and passenger airbags) have air release holes in the design, the size of the air release holes directly influences the protection performance of the airbags on drivers and passengers, the size and the number of the air release holes of the frontal collision airbags installed on the automobiles are constant, and the designed airbags of the automobiles also take standard adult male figures as the design basis. However, the real driving and riding environments are complex, and the shape, contour and quality of drivers or passengers are greatly different.
If the body proportion of a driver or a passenger is small, the driver or the passenger can adjust the seat correspondingly to the front direction due to driving and riding habits, so that the distance between the passenger and the front safety air bag is reduced, and if the vehicle collides frontally, the driver and the passenger can be contacted with the safety air bag in advance, and the driver and the passenger can be injured due to excessive pressure in the front air bag, so that the driving safety of the passenger with different body proportions is urgently needed.
Disclosure of Invention
The invention aims to provide an internal pressure adjustable safety airbag device which can automatically adjust the internal pressure according to the stature proportion of drivers and passengers, thereby protecting the driving safety of the passengers with different stature proportions.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an adjustable internal pressure's air bag device, includes gasbag body and installation casing thereof, is equipped with first disappointing hole on the gasbag body, and its special character is: be equipped with the second and leak the hole on the gasbag body, the gasbag is this internal to be connected with the subassembly that loses heart corresponding to the second and loses heart hole department, is equipped with the release mechanism through ECU control on the installation casing, it is connected with release mechanism through the stretching strap to lose heart subassembly one end for when the vehicle head-on collision takes place and driver and crew's figure proportion is less, it is released by release mechanism to lose heart subassembly to open the second hole that loses heart and realize disappointing fast.
As further preferred, the subassembly of disappointing is by letting out the gas cylinder with the stretching strap is connected and is formed, and the hole edge that loses heart of gas cylinder one end and second is sewed up, the both ends symmetric connection of stretching strap is in the both sides of the section of thick bamboo other end that loses heart.
Preferably, the air release cylinder is in a cone shape made of cloth for the air bag, one end of a large opening of the air release cylinder is sewn with the edge of the second air release hole, and two ends of the drawstring are symmetrically connected to two sides of one end of a small opening of the air release cylinder.
Preferably, the release mechanism comprises a cylinder body, a gas generator, a clamping pin and a collecting sleeve, wherein the cylinder body and the collecting sleeve are correspondingly fixed on the bottom surface of the mounting shell, the gas generator is fixed in the cylinder body and controlled by the ECU, two ends of the clamping pin are respectively inserted into the cylinder body and the collecting sleeve, and the middle part of the pull belt is sleeved on the clamping pin; the gas generator generates high-pressure gas after ignition to push the bayonet lock into the collecting sleeve, so that the pull belt is released.
Preferably, one end of the cylinder body corresponding to the clamping pin is a tapered hole with a reduced diameter and is in clearance fit with the clamping pin.
Preferably, the release mechanism comprises a cylinder body, a gas generator, a cutter, a pull rope and a fixed seat, wherein the cylinder body and the fixed seat are fixed on the bottom surface of the mounting shell, the gas generator is fixed in the cylinder body and controlled by the ECU, the pull rope is transversely pulled on the fixed seat, and the middle part of the pull rope is sleeved on the pull rope; one end of the cutter is in a piston shape and is inserted into the cylinder body, and high-pressure gas discharged after the gas generator is ignited can push the cutter to translate to cut the pull rope, so that the pull rope is released.
Preferably, the other end of the cutter is U-shaped and provided with a U-shaped cutting edge so as to cut off the pull rope from two sides of the pull belt, so that the pull belt is released quickly.
Preferably, a rectangular groove is formed in the middle of the fixed seat, and the pull rope is transversely pulled in the rectangular groove so as to be matched with the cutter to quickly cut the pull rope.
The invention has the beneficial effects that:
the air bag body is provided with a second air release hole, an air release assembly is connected to the position, corresponding to the second air release hole, in the air bag body, a release mechanism controlled by an ECU is arranged on the mounting shell, and one end of the air release assembly is connected with the release mechanism through a pull belt; therefore, whether the stature proportion of the driver and the passengers is standard or not is detected and judged through the camera in the automobile and is transmitted to the ECU, and the ECU controls whether a release mechanism of the device is started or not; the air release component can be controlled to open the second air release hole to realize quick and automatic air release, so that the internal pressure of the air bag is adjusted; when the vehicle takes place frontal collision and driver and crew's figure proportion is less promptly, the gas generator ignition through ECU control release mechanism moves, makes the subassembly of disappointing released by release mechanism to open the second hole of disappointing, make and fill into this internal high-pressure gas of gasbag through first, the second discharge that the hole is quick more that loses, thereby reduce gasbag internal pressure, protection driver and crew's personal safety.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
figure 2 is a schematic diagram of the configuration of the run-flat assembly of the present invention.
Fig. 3 is a schematic view of the release mechanism of fig. 1.
Fig. 4 is a schematic view of the structure of fig. 3 when released.
FIG. 5 is a schematic view showing the airbag of FIG. 1 after the second venting holes are not opened.
FIG. 6 is a schematic view showing the opening of the second venting hole after the initiation of the airbag of FIG. 1.
Fig. 7 is a schematic structural view of embodiment 2 of the present invention.
Fig. 8 is a schematic view of the release mechanism of fig. 7.
Fig. 9 is a top view of fig. 8.
Fig. 10 is a schematic view of the released structure of fig. 9.
In the figure: releasing mechanism 1, installation casing 2, subassembly 3 loses heart, loses heart section of thick bamboo 301, stretching strap 302, gasbag body 4, first hole 401 that loses heart, the second hole 402 that loses heart, gas generator 5, cylinder body 6, bayonet 7, collects cover 8, cavity 801, fixing base 9, rectangle recess 901, cutter 10, stay cord 11, gasbag gas generator 12.
Detailed Description
Example 1
As shown in fig. 1-3, the internal pressure adjustable airbag apparatus according to the present invention includes an airbag body 4, a mounting case 2, and an airbag inflator 12 fixed on the mounting case 2 for inflating the airbag body 4, wherein the airbag body 4 is provided with a first deflation hole 401 and a second deflation hole 402, a deflation component 3 is connected to the corresponding second deflation hole 402 in the airbag body 4, the mounting case 2 is provided with a release mechanism 1 controlled by an ECU, one end of the deflation component 3 is connected to the release mechanism 1 through a drawstring 302, and when a frontal collision occurs to a vehicle and the proportion of the occupant is small, the deflation component 3 is released by the release mechanism 1, so as to open the second deflation hole 402 to achieve rapid deflation.
The air leakage component 3 is formed by connecting an air leakage cylinder 301 and a pull belt 302, one end of the air leakage cylinder 301 is sewn with the edge of a second air leakage hole 402, and two ends of the pull belt 302 are symmetrically connected to two sides of the other end of the air leakage cylinder 301. Preferably, the air release cylinder 301 is in a cone shape made of cloth for an air bag, one end of a large opening of the air release cylinder is sewn with the edge of the second air release hole 402, and two ends of the drawstring 302 are symmetrically sewn on two sides of one end of the small opening of the air release cylinder 301.
The releasing mechanism 1 comprises a cylinder body 6, a gas generator 5, a clamping pin 7 and a collecting sleeve 8, wherein the cylinder body 6 and the collecting sleeve 8 are fixedly welded on the bottom surface of the mounting shell 2 correspondingly, the gas generator 5 is fixedly arranged in the cylinder body 6 and connected with an in-vehicle ECU (not shown in the figure), and the ignition of the gas generator 5 is controlled by the ECU. The two ends of the bayonet 7 are respectively inserted into the cylinder body 6 and the collecting sleeve 8 through clearance fit, and the middle part of the drawstring 302 penetrates through the air bag body 4 and the mounting shell 2 and is sleeved on the bayonet 7; the gas generator 5 is fired and high pressure gas is discharged to push the bayonet 7 into the collection sleeve 8, thereby releasing the pull tab 302.
The cylinder body 6 is a tapered hole with a reduced diameter corresponding to one end of the bayonet 7 and is in clearance fit with the bayonet 7, so that thrust generated by high-pressure gas can be intensively acted on the bayonet 7, and the bayonet 7 is quickly pushed into the collecting sleeve 8. A chamber 801 is provided in the collecting sleeve 8, which can accommodate the bayonet 7 and is used to accommodate the bayonet 7 which is pushed in.
As shown in fig. 5, when the camera in the vehicle detects and determines that the stature of the driver and the passenger is similar to that of an adult male dummy, a signal is transmitted to the ECU, when the vehicle collides frontally, the ECU does not send an ignition instruction to the gas generator 5, so that the bayonet 7 in the release mechanism 1 does not act, the drawstring 302 is not released, the drawstring 302 is tensioned due to the inflation of the airbag and the internal pressure of the airbag, the small end of the gas release tube 301 is completely sealed, the second gas release hole 402 is sealed, the airbag body 4 can only discharge a small amount of gas through the first gas release hole 401, and the internal pressure of the airbag is maintained, so that the driver and the passenger are protected.
As shown in fig. 4 and 6, when the body proportion of the driver is detected and determined to be small by the camera in the vehicle, a signal is transmitted to the ECU, and when the vehicle collides in the front, the ECU sends an ignition instruction to the gas generator 5, and the gas generator 5 receives the ignition instruction, generates high-pressure gas in the cylinder 6 and pushes the bayonet 7 into the collecting sleeve 8 quickly, so as to release the pull belt 302; due to the action of the internal pressure when the air bag is inflated, the air release cylinder 301 penetrates through the second air release hole 402 to be pushed out of the air bag body 4, air release is formed through the air release cylinder 301, and therefore the internal pressure of the air bag is rapidly reduced; avoid the injury to the driver and passengers with small figure proportion due to overlarge internal pressure of the air bag.
Example 2
As shown in fig. 7 to 10, the release mechanism 1 includes a cylinder 6, a gas generator 5, a cutter 10, a pull rope 11 and a fixing seat 9, wherein the cylinder 6 and the fixing seat 9 are respectively and fixedly welded on the bottom surface of the mounting housing 2 and correspond to each other, the gas generator 5 is fixedly mounted in the cylinder 6 and controlled by the ECU, and one end of an exhaust port of the gas generator 5 corresponds to the cutter 10.
A rectangular groove 901 is formed in the middle of the fixed seat 9, the pull rope 11 is transversely pulled in the rectangular groove 901 on the fixed seat 9, and the middle of the pull belt 302 penetrates through the airbag body 4 and the mounting shell 2 and is sleeved on the pull rope 11; one end of the cutting knife 10 is in a piston shape and is inserted into the cylinder body 6 through clearance fit, the other end of the cutting knife 10 is in a U shape and is inserted into the rectangular groove 901, and the other end of the cutting knife 10 is provided with a U-shaped cutting edge, so that the pull rope 11 can be cut off from two sides of the pull belt 302 by pushing the cutting knife 10 to translate by high-pressure gas discharged after the gas generator 5 is ignited, and the pull belt 302 is rapidly released.
Other structures of this embodiment are the same as those of embodiment 1, and are not described again in this embodiment.
When the automobile airbag release mechanism is used, when the camera in the automobile detects and judges that the stature proportion of a driver and a passenger is similar to that of an adult male dummy, a signal is transmitted to the ECU, when the automobile collides frontally, the ECU cannot send an ignition instruction to the gas generator 5, so that the cutter 10 in the release mechanism 1 cannot act, the drawstring 302 cannot be released, the drawstring 302 can not be released due to the effects of inflation of the airbag and the internal pressure of the airbag, the drawstring 302 is tensioned through the pull rope 11, so that the small-opening end of the gas release cylinder 301 is completely sealed, the second gas release hole 402 is sealed, the airbag body 4 can only discharge a small amount of gas through the first gas release hole 401, and the internal pressure of the airbag can be kept, so that the driver and the passenger.
When the body proportion of a driver and a passenger is detected and judged to be small through a camera in the vehicle, a signal is transmitted to the ECU, when the vehicle collides frontally, the ECU sends an ignition instruction to the gas generator 5, the gas generator 5 receives the ignition instruction, high-pressure gas is generated in the cylinder body 6 and pushes the piston and the cutter 10, and the cutter 10 cuts the pull rope 11 through the U-shaped cutting edge and releases the pull belt 302; due to the action of the internal pressure when the air bag is inflated, the air release cylinder 301 penetrates through the second air release hole 402 to be pushed out of the air bag body 4, air release is formed through the air release cylinder 301, and therefore the internal pressure of the air bag is rapidly reduced; avoid the injury to the driver and passengers with small figure proportion due to overlarge internal pressure of the air bag.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an air bag device of adjustable internal pressure, includes gasbag body and installation casing, is equipped with first disappointing hole, characterized by on gasbag body: be equipped with the second and leak the hole on the gasbag body, the gasbag is this internal to be connected with the subassembly that loses heart corresponding to the second and loses heart hole department, is equipped with the release mechanism through ECU control on the installation casing, it is connected with release mechanism through the stretching strap to lose heart subassembly one end for when the vehicle head-on collision takes place and driver and crew's figure proportion is less, it is released by release mechanism to lose heart subassembly to open the second hole that loses heart and realize disappointing fast.
2. An internal pressure adjustable airbag apparatus according to claim 1, wherein: the subassembly of disappointing is by letting out the gas cylinder with the stretching strap is connected and is formed, and the hole edge that loses heart of a section of thick bamboo one end and second is sewed up, the both ends symmetric connection of stretching strap is in the both sides of the section of thick bamboo other end that loses heart.
3. An internal pressure adjustable airbag apparatus according to claim 2, wherein: the air release cylinder is in a cone shape made of cloth for the air bag, one end of a large opening of the air release cylinder is sewn with the edge of the second air release hole, and two ends of the drawstring are symmetrically connected to two sides of one end of a small opening of the air release cylinder.
4. An internal pressure adjustable airbag apparatus according to any one of claims 1 to 3, wherein: the release mechanism comprises a cylinder body, a gas generator, a clamping pin and a collecting sleeve, wherein the cylinder body and the collecting sleeve are correspondingly fixed on the bottom surface of the mounting shell, the gas generator is fixed in the cylinder body and is controlled by an ECU (electronic control unit), two ends of the clamping pin are respectively inserted into the cylinder body and the collecting sleeve, and the middle part of the pull belt is sleeved on the clamping pin; the gas generator generates high-pressure gas after ignition to push the bayonet lock into the collecting sleeve, so that the pull belt is released.
5. An internal pressure adjustable airbag apparatus according to claim 4, wherein: one end of the cylinder body, which corresponds to the bayonet lock, is a tapered hole with a reduced diameter and is in clearance fit with the bayonet lock.
6. An internal pressure adjustable airbag apparatus according to any one of claims 1 to 3, wherein: the release mechanism comprises a cylinder body, a gas generator, a cutter, a pull rope and a fixed seat, wherein the cylinder body and the fixed seat are fixed on the bottom surface of the mounting shell; one end of the cutter is in a piston shape and is inserted into the cylinder body, and high-pressure gas discharged after the gas generator is ignited can push the cutter to translate to cut the pull rope, so that the pull rope is released.
7. An internal pressure adjustable airbag apparatus according to claim 6, wherein: the other end of the cutter is U-shaped and is provided with a U-shaped cutting edge so as to cut off the pull rope from two sides of the pull belt and quickly release the pull belt.
8. An internal pressure adjustable airbag apparatus according to claim 7, wherein: the middle of the fixed seat is provided with a rectangular groove, and the pull rope is transversely pulled in the rectangular groove so as to be matched with the cutter to quickly cut the pull rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444796.5A CN111547004A (en) | 2020-05-23 | 2020-05-23 | Safety airbag device capable of adjusting internal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444796.5A CN111547004A (en) | 2020-05-23 | 2020-05-23 | Safety airbag device capable of adjusting internal pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111547004A true CN111547004A (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010444796.5A Pending CN111547004A (en) | 2020-05-23 | 2020-05-23 | Safety airbag device capable of adjusting internal pressure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030020266A1 (en) * | 2001-07-12 | 2003-01-30 | Vendely Michael Joseph | Variable venting air bag assembly |
| JP2009107578A (en) * | 2007-10-31 | 2009-05-21 | Nippon Plast Co Ltd | Airbag device |
| US20090256338A1 (en) * | 2008-04-14 | 2009-10-15 | Autoliv Asp, Inc. | Dynamic safety vent |
| US20090309341A1 (en) * | 2008-06-11 | 2009-12-17 | Takata Corporation | Airbag device |
| US20100201107A1 (en) * | 2007-06-18 | 2010-08-12 | Takata Corporation | Airbag, airbag device and airbag exhausting method |
| KR20130062521A (en) * | 2011-12-05 | 2013-06-13 | 현대자동차주식회사 | An air bag cushion for reducing injuries having a vent control means |
| US20130147169A1 (en) * | 2011-12-12 | 2013-06-13 | Chrysler Group Llc | Active airbag venting system |
| CN212220148U (en) * | 2020-05-23 | 2020-12-25 | 锦州锦恒汽车安全***股份有限公司 | Safety airbag device capable of adjusting internal pressure |
-
2020
- 2020-05-23 CN CN202010444796.5A patent/CN111547004A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030020266A1 (en) * | 2001-07-12 | 2003-01-30 | Vendely Michael Joseph | Variable venting air bag assembly |
| US20100201107A1 (en) * | 2007-06-18 | 2010-08-12 | Takata Corporation | Airbag, airbag device and airbag exhausting method |
| JP2009107578A (en) * | 2007-10-31 | 2009-05-21 | Nippon Plast Co Ltd | Airbag device |
| US20090256338A1 (en) * | 2008-04-14 | 2009-10-15 | Autoliv Asp, Inc. | Dynamic safety vent |
| US20090309341A1 (en) * | 2008-06-11 | 2009-12-17 | Takata Corporation | Airbag device |
| KR20130062521A (en) * | 2011-12-05 | 2013-06-13 | 현대자동차주식회사 | An air bag cushion for reducing injuries having a vent control means |
| US20130147169A1 (en) * | 2011-12-12 | 2013-06-13 | Chrysler Group Llc | Active airbag venting system |
| CN212220148U (en) * | 2020-05-23 | 2020-12-25 | 锦州锦恒汽车安全***股份有限公司 | Safety airbag device capable of adjusting internal pressure |
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