CN205534447U - A flow automatic regulating apparatus for onboard oxygen generation equipment - Google Patents
A flow automatic regulating apparatus for onboard oxygen generation equipment Download PDFInfo
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- CN205534447U CN205534447U CN201620093178.XU CN201620093178U CN205534447U CN 205534447 U CN205534447 U CN 205534447U CN 201620093178 U CN201620093178 U CN 201620093178U CN 205534447 U CN205534447 U CN 205534447U
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Abstract
The utility model discloses a flow automatic regulating apparatus for onboard oxygen generation equipment, which comprises a housin, lung formula valve assembly, rocking arm subassembly and assembly of thin films, the face guard suction channel who is provided with the oxygen air inlet of being connected with the oxygen manufacturing system on the casing and communicates with the respirator, be provided with the chamber of breathing in in the casing, gas storage chamber and balanced chamber, chamber and the face guard suction channel of breathing in communicates, breathe in chamber and gas storage chamber and pass through lung formula valve assembly intercommunication, lung formula valve assembly and oxygen air inlet intercommunication, the gas storage chamber is passed through the assembly of thin films with balanced chamber and is cut off, the assembly of thin films passes through rocking arm subassembly and the transmission of lung formula valve assembly. The utility model discloses a pressure differential between assembly of thin films response gas storage chamber and the balanced chamber to adjust the entering of oxygen through the control of rocking arm subassembly and lung formula valve assembly, realize flow automatically regulated's function, and through realization pressure automatically regulated such as bellows subassembly, residual pressure valve assembly, air valve assembly, overvoltage protection, stabilize residual pressure, function such as prevent stifling.
Description
Technical field
The utility model relates to field of aviation machinery, particularly relates to a kind of automatic flow rate adjusting device for airborne oxygen generating plant.
Background technology
Traditional mechanical flow regulator volume is bigger, pressure regulation is inaccurate, poor to the adaptive ability of environmental change, its operation logic is the purpose reaching to regulate uninterrupted according to the channel cross-section controlling fluid, but this technology can only carry out " interception " to the fluid in passage, the size variation of flow can not be controlled, more can not carry out flow from main regulation according to the change of surrounding environment.
The technology that can realize flow automatic regulation function in the market uses mostly: increase the feedback electronic element such as flow sensor or position sensor in former frame for movement, it is transferred to self-con-tained unit by the test data of feedback electronic element, then is controlled the size of flow by self-con-tained unit interlocking mechanism drive disk assembly.Although this mode equally reaches the flow function from main regulation, but the fault rate of electronic equipment is far longer than mechanical mechanism, and additional electronics, electric component increases extra volume and energy ezpenditure, may be only available for short life or be easy to the equipment that periodic maintenance is changed.
Utility model content
The purpose of this utility model is that provides a kind of automatic flow rate adjusting device for airborne oxygen generating plant to solve the problems referred to above.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of automatic flow rate adjusting device for airborne oxygen generating plant, including housing, it is provided with on described housing and manufactures the oxygen air inlet that system is connected and the face shield air intake passage connected with breathing mask with oxygen, described device also includes lung formula valve assembly, rocker arm assembly and assembly of thin films, it is provided with suction muffler in described housing, air storing cavity and counter balance pocket, described suction muffler connects with described face shield air intake passage, described suction muffler is connected by described lung formula valve assembly with described air storing cavity, described lung formula valve assembly connects with described oxygen air inlet, described air storing cavity is cut off by described assembly of thin films with described counter balance pocket, described assembly of thin films is by described rocker arm assembly and described lung formula valve assembly transmission.
Specifically, described lung formula valve assembly includes sleeve, piston core, valve base and back-moving spring, described suction muffler is connected by described sleeve with described air storing cavity, the outer wall of described sleeve and described housing seal, described piston core is arranged in described sleeve, and and the inwall of described sleeve between be provided with gap, fix in described valve base is arranged on described suction muffler and with the first end of described piston core and be connected, it is provided with for the sealing O with the first end end face seal of described sleeve on described valve base, first end of described back-moving spring is fixing with described valve base to be connected, second end of described back-moving spring is connected by spring mounting seat is fixing with the inwall of described suction muffler, second end of described piston core is arranged in described air storing cavity.
Specifically, described assembly of thin films is arranged on the top of described air storing cavity, described counter balance pocket is arranged on the top of described assembly of thin films, the fixing end of described rocker arm assembly is rotatably connected with the inwall of described air storing cavity, the movable end of described rocker arm assembly is resisted against the downside of described assembly of thin films, the fixing end section of described rocker arm assembly and the second end in contact of described piston core.
Preferably, described assembly of thin films includes multi-layer film structure, is provided with counter balance pocket between described multi-layer film structure, be positioned at the described membrane structure of bottom and described rocker arm assembly against.
nullFurther，Described device also includes air register assembly，Described air register assembly includes air register housing、Pressure film、Compression spring、Valve bar and valve，Described air register housing is divided into pressure chamber and atmosphere chamber by described air register housing and described pressure film，Described pressure chamber connects with described oxygen air inlet，The lower end of described atmosphere chamber is provided with the valve mouth adaptive with described valve，And connect with described suction muffler，Described valve is arranged on the top of described valve mouth and fixing with the lower end of described valve bar is connected，The upper end of described valve bar is against the downside to described pressure film，The upper end of described compression spring is fixing with the upper end of described valve bar to be connected，The lower end of described compression spring is connected by guide ring and described air register housing are fixing，The air inlet hole with atmosphere it is provided with on the sidewall of described atmosphere chamber.
Specifically, described guide ring is arranged between described valve and described pressure film, and fixing with described air register housing be connected, the centre bore passed for described valve bar it is provided with on described guide ring, described compression spring is sleeved on the epimere of described valve bar, and the lower end of described compression spring is fixing with the upper side of described guide ring is connected, between described valve and described valve mouth, it is provided with sealing rubber pad.
Further, described device also includes bellows component, described bellows component includes corrugated header, bellows and bellows top flat, the bellows mounting groove connected with oxygen pipeline it is provided with on described housing, described bellows is arranged in described bellows mounting groove by described corrugated header, described bellows top flat is connected with described bellows and conforms on the through hole between described bellows mounting groove and described oxygen pipeline, being provided with sealing rubber pad between described bellows top flat and described mounting groove, the sidewall of described bellows mounting groove is provided with steam vent.
Further, described device also includes overbottom pressure valve assembly, described overbottom pressure valve assembly includes overbottom pressure spring, overbottom pressure valve and overbottom pressure valve base, the overbottom pressure valve mounting groove connected with oxygen pipeline it is provided with on described housing, described overbottom pressure valve base is arranged on the through hole between described overbottom pressure valve mounting groove and described oxygen pipeline, it is provided with overbottom pressure pore in described overbottom pressure valve mounting seat, the medial surface of described overbottom pressure valve and described overbottom pressure valve mounting seat are fitted and seal described overbottom pressure pore, the lateral surface of described overbottom pressure valve is connected with the first end of described overbottom pressure spring, second end of described overbottom pressure spring is connected by threaded collar and described housing are fixing.
The beneficial effects of the utility model are:
The utility model senses the pressure differential between air storing cavity and counter balance pocket for the automatic flow rate adjusting device of airborne oxygen generating plant by assembly of thin films; and by rocker arm assembly and the entrance of lung formula valve assembly control and regulation oxygen; realize the function that flow is automatically adjusted, and realize pressure by bellows component, overbottom pressure valve assembly, air register assembly etc. and be automatically adjusted, overvoltage protection, stablize the function such as overbottom pressure, anti-suffocation.
Accompanying drawing explanation
Fig. 1 is the sectional view of the automatic flow rate adjusting device for airborne oxygen generating plant described in the utility model；
Fig. 2 is the side view of the automatic flow rate adjusting device for airborne oxygen generating plant described in the utility model；
Fig. 3 is the structural representation of lung formula valve assembly described in the utility model；
Fig. 4 is the structural representation of air register assembly described in the utility model；
Fig. 5 is the structural representation of bellows component described in the utility model；
Fig. 6 is the structural representation of overbottom pressure valve assembly described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
nullAs shown in Figure 1，The utility model is for the automatic flow rate adjusting device of airborne oxygen generating plant，Including housing 1、Lung formula valve assembly 2、Rocker arm assembly 6 and assembly of thin films 4，It is provided with on housing 1 and manufactures the oxygen air inlet 11 that system is connected and the face shield air intake passage 12 connected with breathing mask with oxygen，Suction muffler 3 it is provided with in housing 1、Air storing cavity 5 and counter balance pocket 4，Suction muffler 3 connects with face shield air intake passage 12，Suction muffler 3 is connected by lung formula valve assembly 2 with air storing cavity 5，Lung formula valve assembly 2 connects with oxygen air inlet 11，Air storing cavity 5 is cut off by assembly of thin films 4 with counter balance pocket 4，Assembly of thin films 4 is by rocker arm assembly 6 and lung formula valve assembly 2 transmission，Assembly of thin films 4 is arranged on the top of air storing cavity 5，Counter balance pocket 4 is arranged on the top of assembly of thin films 4，The fixing end of rocker arm assembly 6 is rotatably connected with the inwall of air storing cavity 5，The movable end of rocker arm assembly 6 is resisted against the downside of assembly of thin films 4，The fixing end section of rocker arm assembly 6 and the second end in contact of piston core 21，Assembly of thin films 4 includes multi-layer film structure，Counter balance pocket 4 it is provided with between multi-layer film structure，Be positioned at the membrane structure of bottom and rocker arm assembly 6 against.
As shown in Figure 3, lung formula valve assembly 2 includes sleeve 22, piston core 21, valve base 23 and back-moving spring 24, suction muffler 3 is connected by sleeve 22 with air storing cavity 5, the outer wall of sleeve 22 seals with housing 1, piston core 21 is arranged in sleeve 22, and and the inwall of sleeve 22 between be provided with gap, fix in valve base 23 is arranged on suction muffler 3 and with the first end of piston core 21 and be connected, it is provided with for the sealing O 25 with the first end end face seal of sleeve 22 on valve base 23, first end of back-moving spring 24 is fixing with valve base 23 to be connected, second end of back-moving spring 24 is connected by spring mounting seat is fixing with the inwall of suction muffler 3, second end of piston core 21 is arranged in air storing cavity 5.
nullAs shown in Figure 4，Device also includes air register assembly 7，Air register assembly includes air register housing 71、Pressure film 72、Compression spring 74、Valve bar 73 and valve 76，Air register housing 71 is divided into pressure chamber and atmosphere chamber by air register housing 71 and pressure film 72，Pressure chamber connects with oxygen air inlet 11，The lower end of atmosphere chamber is provided with and the valve mouth 77 of valve 76 adaptation，And connect with suction muffler 3，Valve 76 is arranged on the top of valve mouth and fixing with the lower end of valve bar 73 is connected，The upper end of valve bar 73 is against the downside to pressure film 72，The upper end of compression spring 74 is fixing with the upper end of valve bar 73 to be connected，The lower end of compression spring 74 is connected by guide ring 75 is fixing with air register housing 71，The air inlet hole with atmosphere it is provided with on the sidewall of atmosphere chamber，Guide ring 75 is arranged between valve 76 and pressure film 72，And fixing with air register housing 71 be connected，The centre bore passed for valve bar 73 it is provided with on guide ring 75，Compression spring 74 is sleeved on the epimere of valve bar 73，And the upper side of the lower end of compression spring 74 and guide ring 75 is fixing is connected，It is provided with sealing rubber pad between valve 76 and valve mouth 77.
As shown in Figure 2 and Figure 5, device also includes bellows component, bellows 82 assembly includes corrugated header 81, bellows 82 and bellows top flat 83, the bellows mounting groove connected with oxygen pipeline it is provided with on housing 1, bellows 82 is arranged in bellows mounting groove by corrugated header 81, bellows top flat 83 is connected with bellows 82 and conforms on the through hole between bellows mounting groove and oxygen pipeline, being provided with sealing rubber pad between bellows top flat 83 and mounting groove, the sidewall of bellows mounting groove is provided with steam vent.
As shown in Figure 2 and Figure 6, device also includes overbottom pressure valve assembly 9, overbottom pressure valve assembly 9 includes overbottom pressure spring 92, overbottom pressure valve 93 and overbottom pressure valve base 94, the overbottom pressure valve mounting groove connected with oxygen pipeline it is provided with on housing 1, overbottom pressure valve base 94 is arranged on the through hole between overbottom pressure valve mounting groove and oxygen pipeline, it is provided with overbottom pressure pore in overbottom pressure valve 93 mounting seat, the medial surface of overbottom pressure valve 93 and overbottom pressure valve 93 mounting seat are fitted and seal overbottom pressure pore, the lateral surface of overbottom pressure valve 93 is connected with the first end of overbottom pressure spring 92, second end of overbottom pressure spring 92 is connected by threaded collar 91 is fixing with housing 1.
The utility model is as follows for the operation principle of the automatic flow rate adjusting device of airborne oxygen generating plant:
The oxygen of oxygen system manufacture enters flow automatic regulator by oxygen air inlet 11, is then flow to the pressure chamber of air register assembly by air delivering pipeline, and the atmosphere chamber of air register assembly is come round with ambient atmosphere.The oxygen pneumatic that in pressure chamber, oxygen system provides is extraneous air pressure more than in atmosphere chamber, the pressure differential formed acts on the pressure film 72 of air register assembly, pressure film 72 deformation promotes valve bar 73 compression pressure spring 74, make valve compress rubber blanket, thus close the air inlet of air register assembly 7.
When oxygen system is for hypoxgia or oxygen feeding stop, the oxygen pneumatic that in pressure chamber, oxygen system provides is extraneous air pressure less than in atmosphere chamber, compression spring 74 promotes and moves on valve bar 73, so that valve separates with rubber blanket, the air inlet of air register assembly 7 connects with face shield air intake passage 12, can directly breathe outside air, play the effect of anti-suffocation.
The oxygen of oxygen system manufacture enters flow automatic regulator by oxygen air inlet 11, then flowing to lung formula valve assembly 2 by air delivering pipeline, the oxygen in lung formula valve assembly 2 flow to air storing cavity 5, counter balance pocket 4, bellows 82 assembly and overbottom pressure valve assembly 9 by the gap between sleeve 22 and piston core 21；Air storing cavity 5 communicates with the suction muffler 3 of face shield air intake passage 12, therefore the air pressure relative equilibrium in air storing cavity 5, counter balance pocket 4 and suction muffler 3.
By sucting mask from face shield air intake passage 12 respiratory oxygen.During air-breathing, oxygen instantaneous reduction in suction muffler 3 and air storing cavity 5, therefore the air pressure in counter balance pocket 4 is more than the air pressure in air storing cavity 5, assembly of thin films 4 deforms downwards, promote rocker arm assembly 6, the piston core 21 of lung formula piston component is promoted by rocker arm assembly 6 to suction muffler 3, open at valve base 23 and O, oxygen air inlet 11 connects with suction muffler 3, oxygen enters suction muffler 3 and air storing cavity 5, air storing cavity 5 internal gas pressure increases, assembly of thin films 4 upwards shrinks, piston core 21 moves to air storing cavity 5 under the effect of back-moving spring 24, rocker arm assembly 6 resets, and valve base 23 and O are by the channel seal of oxygen air inlet 11 to suction muffler 3；Oxygen instantaneous reduction again during air-breathing, in suction muffler 3 and air storing cavity 5 ... so circulate, completes oxygen supply process.
The oxygen pressure of bellows 82 assembly regulation flow automatic regulator, makes the oxygen pressure of flow automatic regulator tend to a stability range.Air pressure change is converted to change in displacement by bellows 82.When ground, ambient pressure is relatively big, and the oxygen production capacity of oxygen system is strong, and the axial compressive force that bellows 82 is subject to is relatively big, and bellows 82 shortens, i.e. rubber blanket in Fig. 5 separates with the sealing surface of housing 1, and unnecessary oxygen is got rid of from steam vent.Along with height above sea level raises, ambient pressure reduces, and air is the thinnest, and the oxygen production capacity of oxygen system declines, and the axial compressive force that bellows 82 is subject to reduces, and bellows 82 extends, and reduces oxygen discharge, or makes rubber blanket compress housing 1 sealing surface, stops oxygen discharge.So that flow automatic regulator tends to a stationary value at the oxygen supply pressure of different altitude height (0～7000 meter).
Overbottom pressure valve assembly 9 prevents the oxygen pressure of flow automatic regulator too high.When the oxygen pressure in flow automatic regulator is too high, oxygen pressure promotes the overbottom pressure valve 93 of overbottom pressure valve assembly 9 to be displaced outwardly, and overbottom pressure valve 93 separates with overbottom pressure valve base 94, gets rid of unnecessary oxygen.Along with the eliminating of oxygen, the air pressure in flow automatic regulator reduces, and overbottom pressure spring 92 promotes overbottom pressure valve 93 to move inward, and reduces oxygen and gets rid of, until the oxygen pressure in flow automatic regulator tends towards stability during value, overbottom pressure valve 93 is closed, and stops oxygen discharge.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology deformation made according to the technical solution of the utility model, within each falling within protection domain of the present utility model.
Claims (8)
1. the automatic flow rate adjusting device for airborne oxygen generating plant, including housing, it is provided with on described housing and manufactures the oxygen air inlet that system is connected and the face shield air intake passage connected with breathing mask with oxygen, it is characterized in that: also include lung formula valve assembly, rocker arm assembly and assembly of thin films, it is provided with suction muffler in described housing, air storing cavity and counter balance pocket, described suction muffler connects with described face shield air intake passage, described suction muffler is connected by described lung formula valve assembly with described air storing cavity, described lung formula valve assembly connects with described oxygen air inlet, described air storing cavity is cut off by described assembly of thin films with described counter balance pocket, described assembly of thin films is by described rocker arm assembly and described lung formula valve assembly transmission.
nullAutomatic flow rate adjusting device for airborne oxygen generating plant the most according to claim 1，It is characterized in that: described lung formula valve assembly includes sleeve、Piston core、Valve base and back-moving spring，Described suction muffler is connected by described sleeve with described air storing cavity，The outer wall of described sleeve and described housing seal，Described piston core is arranged in described sleeve，And and the inwall of described sleeve between be provided with gap，Fix in described valve base is arranged on described suction muffler and with the first end of described piston core and be connected，It is provided with on described valve base for the sealing O with the first end end face seal of described sleeve，First end of described back-moving spring is fixing with described valve base to be connected，Second end of described back-moving spring is connected by spring mounting seat is fixing with the inwall of described suction muffler，Second end of described piston core is arranged in described air storing cavity.
Automatic flow rate adjusting device for airborne oxygen generating plant the most according to claim 2, it is characterized in that: described assembly of thin films is arranged on the top of described air storing cavity, described counter balance pocket is arranged on the top of described assembly of thin films, the fixing end of described rocker arm assembly is rotatably connected with the inwall of described air storing cavity, the movable end of described rocker arm assembly is resisted against the downside of described assembly of thin films, the fixing end section of described rocker arm assembly and the second end in contact of described piston core.
4. according to the automatic flow rate adjusting device for airborne oxygen generating plant described in claim 1 or 3, it is characterized in that: described assembly of thin films includes multi-layer film structure, be provided with counter balance pocket between described multi-layer film structure, be positioned at the described membrane structure of bottom and described rocker arm assembly against.
nullAutomatic flow rate adjusting device for airborne oxygen generating plant the most according to claim 1，It is characterized in that: also include air register assembly，Described air register assembly includes air register housing、Pressure film、Compression spring、Valve bar and valve，Described air register housing is divided into pressure chamber and atmosphere chamber by described air register housing and described pressure film，Described pressure chamber connects with described oxygen air inlet，The lower end of described atmosphere chamber is provided with the valve mouth adaptive with described valve，And connect with described suction muffler，Described valve is arranged on the top of described valve mouth and fixing with the lower end of described valve bar is connected，The upper end of described valve bar is against the downside to described pressure film，The upper end of described compression spring is fixing with the upper end of described valve bar to be connected，The lower end of described compression spring is connected by guide ring and described air register housing are fixing，The air inlet hole with atmosphere it is provided with on the sidewall of described atmosphere chamber.
Automatic flow rate adjusting device for airborne oxygen generating plant the most according to claim 5, it is characterized in that: described pressure rings is arranged between described valve and described pressure film, and fixing with described air register housing be connected, the centre bore passed for described valve bar it is provided with in described pressure rings, described compression spring is sleeved on the epimere of described valve bar, and the lower end of described compression spring is fixing with the upper side of described guide ring is connected, between described valve and described valve mouth, it is provided with sealing rubber pad.
Automatic flow rate adjusting device for airborne oxygen generating plant the most according to claim 1, it is characterized in that: also include bellows component, described bellows component includes corrugated header, bellows and bellows top flat, the bellows mounting groove connected with oxygen pipeline it is provided with on described housing, described bellows is arranged in described bellows mounting groove by described corrugated header, described bellows top flat is connected with described bellows and conforms on the through hole between described bellows mounting groove and described oxygen pipeline, it is provided with sealing rubber pad between described bellows top flat and described mounting groove, the sidewall of described bellows mounting groove is provided with steam vent.
Automatic flow rate adjusting device for airborne oxygen generating plant the most according to claim 1, it is characterized in that: also include overbottom pressure valve assembly, described overbottom pressure valve assembly includes overbottom pressure spring, overbottom pressure valve and overbottom pressure valve base, the overbottom pressure valve mounting groove connected with oxygen pipeline it is provided with on described housing, described overbottom pressure valve base is arranged on the through hole between described overbottom pressure valve mounting groove and described oxygen pipeline, it is provided with overbottom pressure pore in described overbottom pressure valve mounting seat, the medial surface of described overbottom pressure valve and described overbottom pressure valve mounting seat are fitted and seal described overbottom pressure pore, the lateral surface of described overbottom pressure valve is connected with the first end of described overbottom pressure spring, second end of described overbottom pressure spring is connected by threaded collar and described housing are fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620093178.XU CN205534447U (en) | 2016-01-29 | 2016-01-29 | A flow automatic regulating apparatus for onboard oxygen generation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620093178.XU CN205534447U (en) | 2016-01-29 | 2016-01-29 | A flow automatic regulating apparatus for onboard oxygen generation equipment |
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| CN205534447U true CN205534447U (en) | 2016-08-31 |
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| CN201620093178.XU Active CN205534447U (en) | 2016-01-29 | 2016-01-29 | A flow automatic regulating apparatus for onboard oxygen generation equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526393A (en) * | 2016-01-29 | 2016-04-27 | 成都康拓兴业科技有限责任公司 | Automatic flow regulating device for airborne oxygen production equipment |
| CN108278413A (en) * | 2017-12-22 | 2018-07-13 | 兰州空间技术物理研究所 | A kind of excess pressure valve suitable for the control of space capsule pressure |
| CN111420312A (en) * | 2020-03-10 | 2020-07-17 | 中国人民解放军63919部队 | Lung type structure oxygen regulator for high-altitude parachuting |
-
2016
- 2016-01-29 CN CN201620093178.XU patent/CN205534447U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526393A (en) * | 2016-01-29 | 2016-04-27 | 成都康拓兴业科技有限责任公司 | Automatic flow regulating device for airborne oxygen production equipment |
| CN108278413A (en) * | 2017-12-22 | 2018-07-13 | 兰州空间技术物理研究所 | A kind of excess pressure valve suitable for the control of space capsule pressure |
| CN111420312A (en) * | 2020-03-10 | 2020-07-17 | 中国人民解放军63919部队 | Lung type structure oxygen regulator for high-altitude parachuting |
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