CN104176255B - Air-drop buffer air bag active synchronization begins to rehearse air valve system soon - Google Patents
Air-drop buffer air bag active synchronization begins to rehearse air valve system soon Download PDFInfo
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- CN104176255B CN104176255B CN201410420939.3A CN201410420939A CN104176255B CN 104176255 B CN104176255 B CN 104176255B CN 201410420939 A CN201410420939 A CN 201410420939A CN 104176255 B CN104176255 B CN 104176255B
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Abstract
Air-drop buffer air bag active synchronization begins to rehearse air valve system soon, comprise multiple air-drop buffer air bag air valve that synchronously begins to rehearse soon, each air-drop buffer air bag air valve that synchronously begins to rehearse soon comprises valve seat, the top end face of valve seat can be affixed with the lower surface of valve cover, the right side at valve cover edge and the inner end of right connecting panel are fixedly linked, the plate face of right connecting panel outer end is vertically provided with eyelet, the below of right connecting panel outer end is provided with pedestal, the bottom of pedestal is fixed on the top end face of butt flange, pedestal is provided with lower eyelet, annular Plastic Bandage is installed with in lower eyelet and upper eyelet.Its object is to provide a kind of stable work in work, reliable, the exhausr port Fast synchronization of multiple buffer air bags that same equipment can be allowed to use is opened, and then buffer air bag cushion characteristic is stablized, effectively reduce or avoid the upset of equipping even to topple causing the air-drop buffer air bag active synchronization of the serious damage of equipment to begin to rehearse soon air valve system.
Description
Technical field
The present invention relates to a kind of air-drop buffer air bag active synchronization to begin to rehearse soon air valve system.
Background technology
If directly contacted to earth when landing after being equipped in parachuting, moment impact overload will damage the physical construction of equipment and the instrument and equipment of inside.Therefore need to absorb a part of impact energy by energy absorbing device.Widely used energy absorbing device mainly contains compressible material, retrorocket and air-drop buffer air bag.Air-drop buffer air bag is compared other energy absorbing device and is had that structure is simple, easy to use, good buffer effect and low cost and other advantages.Air bag buffer system, mainly through the buffering of air bag, absorbs most of impact energy when landing, and alleviates the impact being equipped in and landing suffered by moment.Due to the multiple advantages of air-drop buffer air bag, air bag buffer system becomes one of important component part of equipment aerial delivery system gradually.
Existing air-drop buffer air bag is mainly gravity type buffer air bag, and gravity type buffer air bag is made up of main and auxiliary air bag two parts, and auxiliary air bag in the outside of main gasbag, and communicates with main gasbag via air extractor vent.Induction opening is positioned at bottom main gasbag, and when equipment falls, gravity type buffer air bag can self-inflating.When after gravity type buffer air bag and earth surface, induction opening is closed.The deflation hole of gravity type buffer air bag is positioned in the middle part of auxiliary air bag side, is fitted at ordinary times by velcro, and when inside and outside gravity type buffer air bag, gas differential pressure is greater than the adhesive force of deflation hole, gravity type buffer air bag is by deflation hole exhaust pressure relief.This kind of airbag structure is simple, easy to use, but buffering effect is comparatively large by environmental factor restriction, and particularly in high altitude region, because of atmospheric conditions impact, buffering effect is very poor.Especially comparatively large at equipment volume, under needing to use the situation of multiple air bag simultaneously, due to each air bag exhausr port open life period difference, the upset of equipping can be caused even to topple, cause the serious damage of equipment.
The buffer air bag separately having a kind of novel equipment aerial delivery system is inflatable cushioning air bag.Different from gravity type buffer air bag, without induction opening bottom this kind of air bag, need by throw in front or throw in time adopt high-pressure gas bottle on air bag induction opening inflation, exhaust form then identical with gravity type buffer air bag.This kind of air bag avoids the impact of atmospheric conditions, and in high altitude region, result of use is better.But comparatively large at equipment volume, under needing to use the situation of multiple air bag, life period difference can be opened due to the exhausr port of each air bag equally simultaneously, cause the upset of equipping even to be toppled, cause the serious damage of equipment.
Summary of the invention
The object of the present invention is to provide a kind of stable work in work, reliable, the exhausr port Fast synchronization of multiple buffer air bags that same equipment can be allowed to use is opened, and then buffer air bag cushion characteristic is stablized, effectively reduce or avoid the upset of equipping even to topple causing the air-drop buffer air bag active synchronization of the serious damage of equipment to begin to rehearse soon air valve system.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, comprise multiple air-drop buffer air bag air valve that synchronously begins to rehearse soon, each air-drop buffer air bag air valve that synchronously begins to rehearse soon comprises valve seat, the middle part of described valve seat is vertically provided with air passage, the bottom of valve seat is provided with butt flange in the horizontal direction, the top of valve seat is the plane of a horizontal direction, the top end face of valve seat can be affixed with the lower surface of valve cover, the plate face of valve cover is positioned at horizontal direction, gap between valve cover and valve seat adopts sealing member sealing, the left side at valve cover edge and the inner end of left connecting panel are fixedly linked, the outer end of left connecting panel to be installed with the top of axle bed of shipping and reselling on another market by axle of shipping and reselling on another market and is connected, the ship and resell on another market bottom of axle bed is fixed on the top end face of butt flange, the right side at described valve cover edge and the inner end of right connecting panel are fixedly linked, the plate face of right connecting panel outer end is vertically provided with eyelet, the below of right connecting panel outer end is provided with pedestal, the bottom of pedestal is fixed on the top end face of butt flange, pedestal is provided with lower eyelet, annular Plastic Bandage is installed with in lower eyelet and described upper eyelet, one section of cutting hole through firer's cutter of Plastic Bandage, the constraint of Plastic Bandage makes the lower surface of valve cover be close to the top end face of valve seat, described right connecting panel is tightly bundled on described pedestal,
Each air-drop buffer air bag described firer's cutter of the air valve that synchronously begins to rehearse soon is electrically connected with firer's cutter controller respectively, and firer's cutter controller is electrically connected with acceleration pick-up.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, the rubber coating that elastomeric material is made is embedded with respectively in wherein said lower eyelet and in described upper eyelet, two ends of rubber coating stretch out in lower eyelet and upper eyelet respectively, and described Plastic Bandage is through the endoporus of each rubber coating.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, the cross-sectional plane of wherein said valve seat and described air passage is circular, outlet around air passage on the top end face of valve seat is provided with seal ring mounting groove, is provided with seal ring in seal ring mounting groove.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, wherein said valve cover is disc, the external diameter of valve cover is equal with the external diameter of described valve seat, and described butt flange is annular arrangement, and the lower surface of butt flange is concordant with the lower surface of described valve seat.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, the outer end of wherein said left connecting panel and the middle part of described axle of shipping and reselling on another market are fixedly linked, described axle bed of shipping and reselling on another market comprises two otic placodes be set up in parallel, the top of two otic placodes is provided with along anterior-posterior horizontal direction axle mounting hole of shipping and reselling on another market, bottom and the described butt flange of two otic placodes are weldingly connected, described in ship and resell on another market two ends of axle be installed in rotation on shipping and reselling on another market in axle mounting hole of two otic placodes.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, and wherein said air-drop buffer air bag is 2-6 by the quantity of the air valve that synchronously begins to rehearse soon.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system in use soon, the situation in the equipment status that can drop as required and air-drop place, presetting allows acceleration pick-up send the threshold value of signal, the acceleration value collected when acceleration pick-up reaches threshold value, acceleration pick-up can send signal to firer's cutter controller, after receiving the signal that acceleration pick-up sends, firer's cutter controller can send energizing signal to each air-drop buffer air bag firer's cutter of the air valve that synchronously begins to rehearse soon, allow all firer's cutters at Plastic Bandage corresponding to moment turned off in synchronization, so, multiple air-drop buffer air bag valve cover of the air valve that synchronously begins to rehearse soon will be opened under the pressure effect of air-drop buffer air bag internal gas in upset simultaneously and rapidly, all air-drop buffer air bags air passage of the air valve that synchronously begins to rehearse soon starts exhaust pressure relief simultaneously, thus allow whole air-drop buffer air bags synchronously can both play buffer action, opening of the exhausr port of each air bag can be avoided due to life period difference thus to cause the upset of equipping even to topple the problem of the serious damage causing equipment.Therefore, the air-drop buffer air bag active synchronization of the present invention air valve system that begins to rehearse soon has stable work in work, reliable, the exhausr port Fast synchronization of multiple buffer air bags that same equipment can be allowed to use is opened, and then buffer air bag cushion characteristic is stablized, effectively reduce or avoid the upset of equipping even to topple and cause the serious feature of damaging of equipment.
Drop the buffer air bag active synchronization air valve system that begins to rehearse soon below in conjunction with accompanying drawing to the present invention to be described further.
Accompanying drawing explanation
Fig. 1 is that the air-drop buffer air bag active synchronization of the present invention single air-drop buffer air bag active synchronization in air valve system that begins to rehearse soon begins to rehearse the main pseudosection of structural representation of air valve soon;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is that the air-drop buffer air bag active synchronization of the present invention single air-drop buffer air bag active synchronization of air valve system that begins to rehearse soon begins to rehearse the block diagram of structural representation of air valve soon.
Detailed description of the invention
As Fig. 1, shown in Fig. 2 and Fig. 3, air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system soon, comprise 2 or 3 or 4 or 5 or 6 air-drop buffer air bag air valves that synchronously begin to rehearse soon, each air-drop buffer air bag air valve that synchronously begins to rehearse soon comprises valve seat 1, the middle part of valve seat 1 is vertically provided with air passage 2, the bottom of valve seat 1 is provided with butt flange 3 in the horizontal direction, the top of valve seat 1 is the plane of a horizontal direction, the top end face of valve seat 1 can be affixed with the lower surface of valve cover 4, the plate face of valve cover 4 is positioned at horizontal direction, gap between valve cover 4 and valve seat 1 adopts sealing member to seal, the left side at valve cover 4 edge and the inner end of left connecting panel 5 are fixedly linked, the outer end of left connecting panel 5 to be installed with the top of axle bed 7 of shipping and reselling on another market by axle 6 of shipping and reselling on another market and is connected, the ship and resell on another market bottom of axle bed 7 is fixed on the top end face of butt flange 3, the right side at valve cover 4 edge and the inner end of right connecting panel 8 are fixedly linked, the plate face of right connecting panel 8 outer end is vertically provided with eyelet 9, the below of right connecting panel 8 outer end is provided with pedestal 10, the bottom of pedestal 10 is fixed on the top end face of butt flange 3, pedestal 10 is provided with lower eyelet 11, annular Plastic Bandage 12 is installed with in lower eyelet 11 and upper eyelet 9, one section of cutting hole 13 through firer's cutter 15 of Plastic Bandage 12, the constraint of Plastic Bandage 12 makes the lower surface of valve cover 4 be close to the top end face of valve seat 1, right connecting panel 8 is tightly bundled on pedestal 10,
Each air-drop buffer air bag firer's cutter 15 of the air valve that synchronously begins to rehearse soon is electrically connected with firer's cutter controller (not shown in FIG.) respectively, and firer's cutter controller is electrically connected with acceleration pick-up (not shown in FIG.).
As improvement of the present invention, in above-mentioned lower eyelet 11 and be embedded with the rubber coating that elastomeric material makes in upper eyelet 9 respectively, two ends of rubber coating stretch out in lower eyelet 11 and upper eyelet 9 respectively, and Plastic Bandage 12 is through the endoporus of each rubber coating.
As a further improvement on the present invention, the cross-sectional plane of above-mentioned valve seat 1 and air passage 2 is circular, and the outlet around air passage 2 on the top end face of valve seat 1 is provided with seal ring mounting groove, is provided with seal ring 14 in seal ring mounting groove.
As a further improvement on the present invention, above-mentioned valve cover 4 is disc, and the external diameter of valve cover 4 is equal with the external diameter of valve seat 1, and butt flange 3 is annular arrangement, and the lower surface of butt flange 3 is concordant with the lower surface of valve seat 1.
As a further improvement on the present invention, the outer end of above-mentioned left connecting panel 5 is fixedly linked with the middle part of axle 6 of shipping and reselling on another market, axle bed 7 of shipping and reselling on another market comprises two otic placodes be set up in parallel, the top of two otic placodes is provided with along anterior-posterior horizontal direction axle mounting hole of shipping and reselling on another market, bottom and the butt flange 3 of two otic placodes are weldingly connected, and two ends of axle 6 of shipping and reselling on another market are installed in rotation on shipping and reselling on another market in axle mounting hole of two otic placodes.
Air-drop buffer air bag active synchronization of the present invention begins to rehearse air valve system in use soon, the situation in the equipment status that can drop as required and air-drop place, presetting allows acceleration pick-up send the threshold value of signal, the acceleration value collected when acceleration pick-up reaches threshold value, acceleration pick-up can send signal to firer's cutter controller, after receiving the signal that acceleration pick-up sends, firer's cutter controller signal can send energizing signal to multiple air-drop buffer air bag firer's cutter 15 of the air valve that synchronously begins to rehearse soon, all air-drop buffer air bags firer's cutter 15 of the air valve that synchronously begins to rehearse soon is allowed to blast, at Plastic Bandage 12 corresponding to moment turned off in synchronization, so, multiple air-drop buffer air bag will overturn fast with the valve cover 4 of the air valve that synchronously begins to rehearse soon and open under the pressure effect of air-drop buffer air bag internal gas, all air-drop buffer air bags air passage 2 of the air valve that synchronously begins to rehearse soon starts exhaust pressure relief simultaneously, thus allow whole air-drop buffer air bags synchronously can both play buffer action, opening of the exhausr port of each air bag can be avoided due to life period difference thus to cause the upset of equipping even to topple the problem of the serious damage causing equipment.
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; do not departing under the present invention designs spiritual prerequisite; the various distortion that the common engineering staff in this area make technical solution of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (6)
1. drop buffer air bag active synchronization to begin to rehearse soon air valve system, it is characterized in that: comprise multiple air-drop buffer air bag air valve that synchronously begins to rehearse soon, each air-drop buffer air bag air valve that synchronously begins to rehearse soon comprises valve seat (1), the middle part of valve seat (1) is vertically provided with air passage (2), the bottom of valve seat (1) is provided with butt flange (3) in the horizontal direction, the top of valve seat (1) is the plane of a horizontal direction, the top end face of valve seat (1) can be affixed with the lower surface of valve cover (4), the plate face of valve cover (4) is positioned at horizontal direction, gap between valve cover (4) and valve seat (1) adopts sealing member to seal, the left side at valve cover (4) edge and the inner end of left connecting panel (5) are fixedly linked, the outer end of left connecting panel (5) to be installed with the top of axle bed of shipping and reselling on another market (7) by axle of shipping and reselling on another market (6) and is connected, the ship and resell on another market bottom of axle bed (7) is fixed on the top end face of butt flange (3), the right side at described valve cover (4) edge and the inner end of right connecting panel (8) are fixedly linked, the plate face of right connecting panel (8) outer end is vertically provided with eyelet (9), the below of right connecting panel (8) outer end is provided with pedestal (10), the bottom of pedestal (10) is fixed on the top end face of butt flange (3), pedestal (10) is provided with lower eyelet (11), annular Plastic Bandage (12) is installed with in lower eyelet (11) and described upper eyelet (9), one section of cutting hole (13) through firer's cutter (15) of Plastic Bandage (12), the constraint of Plastic Bandage (12) makes the lower surface of valve cover (4) be close to the top end face of valve seat (1), described right connecting panel (8) is tightly bundled on described pedestal (10),
Each air-drop buffer air bag is electrically connected with firer's cutter controller respectively with described firer's cutter (15) of the air valve that synchronously begins to rehearse soon, and firer's cutter controller is electrically connected with acceleration pick-up.
2. air-drop buffer air bag active synchronization according to claim 1 begins to rehearse air valve system soon, it is characterized in that: in described lower eyelet (11) and in described upper eyelet (9), be embedded with the rubber coating that elastomeric material is made respectively, two ends of rubber coating stretch out in lower eyelet (11) and upper eyelet (9) respectively, and described Plastic Bandage (12) is through the endoporus of each rubber coating.
3. air-drop buffer air bag active synchronization according to claim 2 begins to rehearse air valve system soon, it is characterized in that: the cross-sectional plane of described valve seat (1) and described air passage (2) is for circular, the top end face of valve seat (1) is provided with seal ring mounting groove around the outlet of air passage (2), in seal ring mounting groove, is provided with seal ring (14).
4. air-drop buffer air bag active synchronization according to claim 3 begins to rehearse air valve system soon, it is characterized in that: described valve cover (4) is disc, the external diameter of valve cover (4) is equal with the external diameter of described valve seat (1), described butt flange (3) is annular arrangement, and the lower surface of butt flange (3) is concordant with the lower surface of described valve seat (1).
5. air-drop buffer air bag active synchronization according to claim 4 begins to rehearse air valve system soon, it is characterized in that: the outer end of described left connecting panel (5) and the middle part of described axle of shipping and reselling on another market (6) are fixedly linked, described axle bed of shipping and reselling on another market (7) comprises two otic placodes be set up in parallel, the top of two otic placodes is provided with along anterior-posterior horizontal direction axle mounting hole of shipping and reselling on another market, bottom and the described butt flange (3) of two otic placodes are weldingly connected, described in ship and resell on another market two ends of axle (6) be installed in rotation on shipping and reselling on another market in axle mounting hole of two otic placodes.
6. to begin to rehearse soon air valve system according to the air-drop buffer air bag active synchronization in claim 1 to 5 described in any one, it is characterized in that: described air-drop buffer air bag is 2-6 by the quantity of the air valve that synchronously begins to rehearse soon.
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CN201410420939.3A CN104176255B (en) | 2014-08-26 | 2014-08-26 | Air-drop buffer air bag active synchronization begins to rehearse air valve system soon |
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CN201410420939.3A CN104176255B (en) | 2014-08-26 | 2014-08-26 | Air-drop buffer air bag active synchronization begins to rehearse air valve system soon |
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CN104176255B true CN104176255B (en) | 2016-02-10 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104828248A (en) * | 2015-04-30 | 2015-08-12 | 北京空间机电研究所 | Initiative exhaustion-type buffer airbag device |
CN113619791B (en) * | 2021-08-30 | 2023-04-25 | 航宇救生装备有限公司 | Pressure self-adaptive buffer air bag capable of automatically opening and closing |
CN115743625A (en) * | 2022-11-30 | 2023-03-07 | 北京空间机电研究所 | Combined buffer air bag active exhaust control system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625461A (en) * | 1968-10-23 | 1971-12-07 | Bertin & Cie | Load-landing device |
DE4118300A1 (en) * | 1991-06-04 | 1992-12-10 | C Con Composite Const Gmbh | Filled impact cushion for aircraft loads - has medium discharge outlet opening automatically under excess pressure via detachable flap |
JP2005186711A (en) * | 2003-12-25 | 2005-07-14 | Fuji Heavy Ind Ltd | Orifice for air bag |
CN1663883A (en) * | 2004-03-02 | 2005-09-07 | 张宝霖 | Air-landing device and weight air-dropping device for manned military equipment |
CN200978005Y (en) * | 2006-09-25 | 2007-11-21 | 湖南大学 | Multi-stage gasbag combination buffer unit |
CN101495365A (en) * | 2005-11-09 | 2009-07-29 | 贝尔直升机泰克斯特龙公司 | Crash attenuation system for aircraft |
CN203358865U (en) * | 2012-12-25 | 2013-12-25 | 北京元恒大通科技有限公司 | Airbag type buffer device for airdrop |
-
2014
- 2014-08-26 CN CN201410420939.3A patent/CN104176255B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3625461A (en) * | 1968-10-23 | 1971-12-07 | Bertin & Cie | Load-landing device |
DE4118300A1 (en) * | 1991-06-04 | 1992-12-10 | C Con Composite Const Gmbh | Filled impact cushion for aircraft loads - has medium discharge outlet opening automatically under excess pressure via detachable flap |
JP2005186711A (en) * | 2003-12-25 | 2005-07-14 | Fuji Heavy Ind Ltd | Orifice for air bag |
CN1663883A (en) * | 2004-03-02 | 2005-09-07 | 张宝霖 | Air-landing device and weight air-dropping device for manned military equipment |
CN101495365A (en) * | 2005-11-09 | 2009-07-29 | 贝尔直升机泰克斯特龙公司 | Crash attenuation system for aircraft |
CN200978005Y (en) * | 2006-09-25 | 2007-11-21 | 湖南大学 | Multi-stage gasbag combination buffer unit |
CN203358865U (en) * | 2012-12-25 | 2013-12-25 | 北京元恒大通科技有限公司 | Airbag type buffer device for airdrop |
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