CN109595370B - Self-airtight assembly - Google Patents
Self-airtight assembly Download PDFInfo
- Publication number
- CN109595370B CN109595370B CN201811323982.2A CN201811323982A CN109595370B CN 109595370 B CN109595370 B CN 109595370B CN 201811323982 A CN201811323982 A CN 201811323982A CN 109595370 B CN109595370 B CN 109595370B
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing ring
- guide cover
- pipe orifice
- pipeline shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D25/00—Emergency apparatus or devices, not otherwise provided for
- B64D25/08—Ejecting or escaping means
- B64D25/10—Ejector seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to the field of aviation ejection lifesaving, and particularly relates to a self-airtight assembly which comprises a guide cover (1), a spring (2), a piston (3), a pipe orifice (4), a pipeline shell (5) and an O-shaped sealing ring (8); the guide cover (1), the spring (2) and the piston (3) are sequentially arranged in an inner cavity of the pipeline shell (5), and the O-shaped sealing ring (8) is arranged in a sealing ring groove of the pipeline shell (5); the piston (3) can move up and down in the guide cover (1) and is matched with the O-shaped sealing ring (8), the pipe orifice (4) is locked on the lower beam (7) of the sliding rail through the nut (6), the pipe orifice (4) is inserted into the hole of the pipeline shell (5) and is matched with the O-shaped sealing ring (8) to jack the piston (3), the invention can effectively solve the circulation problem of quickly plugging and unplugging the pipeline interface and the automatic sealing problem, and the structure is simple; the invention has strong portability by modifying design, and can be applied to various quick plugging pipeline interfaces.
Description
The technical field is as follows:
the invention belongs to the field of aviation ejection lifesaving, and particularly relates to a self-airtight assembly.
Background art:
in order to realize the function of automatic plugging and butting of the ejection seat and the airplane interface, a self-airtight assembly is required to be arranged at the pipeline interface; the assembly ensures smooth and non-blocking gas circulation after the interface is plugged, and ensures the sealing of the interface after ejection separation.
The technical scheme is as follows:
the purpose of the invention is as follows: the self-airtight assembly guarantees smooth and non-blocking air circulation after the connector is plugged, and guarantees automatic sealing of the connector after the connector is separated.
The technical scheme of the invention is as follows: a self-airtight assembly comprises a guide cover 1, a spring 2, a piston 3, a pipe orifice 4, a pipeline shell 5 and an O-shaped sealing ring 8; the guide cover 1, the spring 2 and the piston 3 are sequentially arranged in an inner cavity of the pipeline shell 5, and the O-shaped sealing ring 8 is arranged in a sealing ring groove of the pipeline shell 5; piston 3 can move up and down in direction lid 1 to with the cooperation of O type sealing washer 8, mouth of pipe 4 passes through nut 6 lock on slide rail underbeam 7, and mouth of pipe 4 pegs graft the downthehole of pipeline shell 5, with the cooperation of O type sealing washer 8, back-off piston 3.
The pipeline shell 5 is of a structure with vertical cross holes, vertical cross vent holes are formed in the inner cavity, and two sealing grooves are formed in the lower ends of the horizontal vent holes.
The guide cover 1 is a structure with guide and sealing functions, the upper part of the guide cover is provided with a sealing ring groove, and the lower part of the guide cover is provided with a guide hole with an exhaust hole.
The piston 3 is a structure with guiding, ventilating and sealing functions, a guide column is arranged at the upper part, a sealing cylinder with a limiting boss is arranged at the middle part, and a vent groove with a three-ejector-rod structure is arranged at the lower part.
After the pipe orifice 4 is inserted into the pipeline shell 5, the piston 3 opens the interface under the pushing of the pipe orifice 4, and the ejection seat is automatically locked after the pipe orifice 4 is inserted in place.
The invention has the beneficial effects that: the invention can effectively solve the problems of the circulation and the automatic sealing of the quick plugging pipeline interface and has simple structure; the invention has strong portability by modifying design, and can be applied to various quick plugging pipeline interfaces.
Description of the drawings:
FIG. 1 is a view of a self-sealing assembly;
FIG. 2 is a diagram of a tubing interface plug;
fig. 3 is a diagram of a piping interface isolation.
Wherein, 1-guide cover 2-spring 3-piston 4-orifice 5-pipeline shell, 6-nut, 7-slide rail lower beam
The specific implementation mode is as follows:
the invention is further illustrated with reference to the following figures and examples. As shown in fig. 1, the self-sealing assembly of the present invention comprises a guide cap 1, a spring 2, a piston 3 and a nozzle 4. When the guide cover 1, the spring 2 and the piston 3 are sequentially arranged on the pipeline shell 5, the piston 3 can move up and down in the guide cover 1, and the opening and closing functions of the pipeline interface are realized. When the valve is opened, the special shape and the interface form of the piston 3 ensure that the gas flow area at the interface is not smaller than the flow area of the pipe orifice 4, thereby ensuring smooth flow without blockage; when the valve is closed, the cylindrical surface of the piston 3 compresses an O-shaped sealing ring at the interface of the pipeline shell 5, so that the sealing property is ensured.
As shown in fig. 2, the pipe orifice 4 is locked on the lower beam 7 of the slide rail through a nut 6, after the pipe orifice 4 is inserted on the pipeline shell 5, the piston 3 opens the interface under the pushing of the pipe orifice 4, after the pipe orifice is inserted in place, the ejection seat is automatically locked, the pipe orifice 4 is reliably inserted with the pipeline shell 5, and the smooth circulation of gas is ensured by the special shape and interface form of the piston 3.
As shown in fig. 3, after ejection, the pipe orifice 4 is separated from the pipe casing 5, the piston 3 is pushed to close the interface under the combined action of the spring 2 and the gas pressure in the pipe casing 5, and after complete separation, the cylindrical surface of the piston 3 presses the O-ring 8 at the interface of the pipe casing 5, so that automatic sealing is realized.
Claims (4)
1. A self-airtight assembly is characterized by comprising a guide cover (1), a spring (2), a piston (3), a pipe orifice (4), a pipeline shell (5) and an O-shaped sealing ring (8); the guide cover (1), the spring (2) and the piston (3) are sequentially arranged in an inner cavity of the pipeline shell (5), and the O-shaped sealing ring (8) is arranged in a sealing ring groove of the pipeline shell (5); the piston (3) can move up and down in the guide cover (1) and is matched with an O-shaped sealing ring (8), a pipe orifice (4) is locked on a lower beam (7) of the sliding rail through a nut (6), the pipe orifice (4) is inserted into a hole of the pipeline shell (5) and is matched with the O-shaped sealing ring (8) to jack the piston (3), the piston (3) is of a structure with the functions of guiding, ventilating and sealing, a guide column is arranged at the upper part of the piston, a sealing cylinder with a limiting boss is arranged at the middle part of the piston, a vent groove with a three-ejector-rod structure is arranged at the lower part of the piston, and the piston (3) can move up and down in the guide cover (1) to realize the opening and closing of a; when the valve is opened, the special shape and the interface form of the piston (3) ensure that the gas flow area at the interface is not less than the flow area of the pipe orifice (4); when the valve is closed, the cylindrical surface of the piston (3) presses the O-shaped sealing ring at the interface of the pipeline shell (5).
2. A self-sealing assembly as claimed in claim 1, wherein said manifold housing (5) is of a cross-hole configuration with a vertical cross-hole, the chamber having a vertical cross-hole vent and two sealing slots at the lower end of the horizontal vent.
3. A self-sealing assembly as claimed in claim 1 or 2, wherein said guide cover (1) is a structure with guiding and sealing functions, and has fixing screw mounting holes at the upper part, a sealing ring groove at the middle part, and a guide hole with exhaust hole at the lower part.
4. A self-sealing assembly as claimed in claim 1, wherein the piston (3) is pushed by the nozzle (4) to open the interface when the nozzle (4) is inserted into the duct housing (5), and the ejection seat is automatically locked when the nozzle is inserted into position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323982.2A CN109595370B (en) | 2018-11-07 | 2018-11-07 | Self-airtight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323982.2A CN109595370B (en) | 2018-11-07 | 2018-11-07 | Self-airtight assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595370A CN109595370A (en) | 2019-04-09 |
| CN109595370B true CN109595370B (en) | 2020-10-20 |
Family
ID=65958205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811323982.2A Active CN109595370B (en) | 2018-11-07 | 2018-11-07 | Self-airtight assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595370B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248740A (en) * | 2000-03-07 | 2001-09-14 | Pacific Ind Co Ltd | Valve core for charge valve |
| CN102313103A (en) * | 2011-08-15 | 2012-01-11 | 庄志军 | Rushing prevention type pneumatic fast joint |
| CN202790726U (en) * | 2012-10-17 | 2013-03-13 | 宁波永享铜管道有限公司 | Check valve |
| CN204250377U (en) * | 2014-10-28 | 2015-04-08 | 中国航空工业集团公司西安飞机设计研究所 | A kind of supercharging self-packer |
| CN206958328U (en) * | 2017-06-16 | 2018-02-02 | 宁波一机阀门制造有限公司 | A kind of check-valves |
| CN206987988U (en) * | 2017-07-11 | 2018-02-09 | 重庆万力联兴实业(集团)有限公司 | Check valve-type motorcycle pressure regulator |
-
2018
- 2018-11-07 CN CN201811323982.2A patent/CN109595370B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248740A (en) * | 2000-03-07 | 2001-09-14 | Pacific Ind Co Ltd | Valve core for charge valve |
| CN102313103A (en) * | 2011-08-15 | 2012-01-11 | 庄志军 | Rushing prevention type pneumatic fast joint |
| CN202790726U (en) * | 2012-10-17 | 2013-03-13 | 宁波永享铜管道有限公司 | Check valve |
| CN204250377U (en) * | 2014-10-28 | 2015-04-08 | 中国航空工业集团公司西安飞机设计研究所 | A kind of supercharging self-packer |
| CN206958328U (en) * | 2017-06-16 | 2018-02-02 | 宁波一机阀门制造有限公司 | A kind of check-valves |
| CN206987988U (en) * | 2017-07-11 | 2018-02-09 | 重庆万力联兴实业(集团)有限公司 | Check valve-type motorcycle pressure regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109595370A (en) | 2019-04-09 |
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