CN112594099B - Air inlet pipe of multi-state aircraft - Google Patents
Air inlet pipe of multi-state aircraft Download PDFInfo
- Publication number
- CN112594099B CN112594099B CN202011367795.1A CN202011367795A CN112594099B CN 112594099 B CN112594099 B CN 112594099B CN 202011367795 A CN202011367795 A CN 202011367795A CN 112594099 B CN112594099 B CN 112594099B
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- Prior art keywords
- sealing ring
- sealing
- pipe body
- seal
- sealing cover
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
Abstract
The invention provides an air inlet pipe of a multi-state navigation device, which comprises a pipe body, a sealing cover arranged at the end part of the pipe body and a driving piece for driving the sealing cover along the axial direction of the pipe body, wherein the sealing cover is provided with an insertion section matched with the inner wall of the pipe body, the insertion section and the inner wall of the pipe body are provided with radial sealing structures, each radial sealing structure at least comprises a first sealing ring and a second sealing ring, each first sealing ring and each second sealing ring are provided with openings, the openings of the first sealing ring and the second sealing ring are arranged back to back along the axial direction of the pipe body, and therefore the parts of the openings, protruding out of the sealing cover in the radial direction, form scraping structures on the inner wall of the pipe body. The radial seal has self-cleaning capability, the seal with the pipe wall is automatically realized by utilizing external hydraulic pressure, the temporary seal after the end face seal fails in a turbid water environment is mainly realized, the risk of abrasion and tearing can be reduced by timely inspection and replacement, and the radial seal has very good military significance and social benefit.
Description
Technical Field
The invention relates to the technical field of turbines, in particular to an air inlet pipe suitable for a multi-navigation-state aircraft.
Background
The existing multi-navigation state aircraft uses a diesel engine to drive a propulsion device to realize high-speed navigation on the water surface and low-speed navigation in a semi-submerged state, the engine and the propulsion device are stored in a pressure-resistant cabin during underwater navigation, and the working capacity is recovered when the aircraft returns to the water surface. At present, a telescopic air inlet pipe is adopted for simulating an underwater ship, but the multi-mode aircraft has complex and various working environments, the telescopic air inlet pipe has a short water outlet and is easy to clamp foreign matters, and if the telescopic air inlet pipe is not cleaned in time, the sealing surface of the air inlet pipe can be damaged; meanwhile, the multi-navigation-state aircraft is generally a small boat, the space is compact, a special cleaning mechanism cannot be arranged, and the air inlet pipe has sealing capacity and a self-cleaning function.
Disclosure of Invention
Aiming at one or more technical problems in the prior art, the application provides a multi-navigation-state aircraft air inlet pipe to solve the problem that foreign matters are mixed in the multi-navigation-state aircraft air inlet pipe, improve the underwater navigation sealing reliability of an aircraft, and avoid setting a special cleaning mechanism.
The invention provides an air inlet pipe of a multi-state navigation device, which comprises a pipe body, a sealing cover arranged at the end part of the pipe body and a driving piece for driving the sealing cover along the axial direction of the pipe body, wherein the sealing cover is provided with an insertion section matched with the inner wall of the pipe body, the insertion section and the inner wall of the pipe body are provided with radial sealing structures, each radial sealing structure at least comprises a first sealing ring and a second sealing ring, each first sealing ring and each second sealing ring are provided with openings, the openings of the first sealing ring and the second sealing ring are arranged back to back along the axial direction of the pipe body, and therefore the parts of the openings, protruding out of the sealing cover in the radial direction, form scraping structures on the inner wall of the pipe body.
As a preferred technical scheme of the multi-navigation-state aircraft air inlet pipe, a third sealing ring is arranged on the end faces of the sealing cover and the pipe body shaft.
As a preferred technical scheme of the multi-navigation-state aircraft air inlet pipe, the third sealing ring is sleeved on the periphery of the insertion section and can be in pressure joint with the sealing cover by the end face of the pipe body shaft when the sealing cover covers the pipe body.
As an optimal technical scheme of the air inlet pipe of the multi-state aircraft, the third sealing ring is V D And (4) forming a sealing ring.
As a preferred technical scheme of the multi-navigation-state aircraft air inlet pipe, a plurality of annular grooves are formed in the periphery of the inserting section, and the first sealing ring and the second sealing ring are respectively fixed in the annular grooves.
As an optimal technical scheme of the multi-navigation-state aircraft air inlet pipe, a guide structure is arranged on the end face of the shaft body of the pipe body along the inserting direction of the inserting section.
As a preferred technical scheme of the air inlet pipe of the multi-navigation-state aircraft, the guide structure is a semicircular bulge arranged on the end face of the shaft of the tube body.
As an optimal technical scheme of the air inlet pipe of the multi-navigation-state aircraft, the first sealing ring is a Z-shaped sealing ring and a V-shaped sealing ring D A profile seal, a piston rod seal or a lip seal.
As an optimal technical scheme of the air inlet pipe of the multi-state aircraft, the second sealing ring is a Z-shaped sealing ring or a V-shaped sealing ring D A profile seal, a piston rod seal or a lip seal.
As a preferred technical scheme of the air inlet pipe of the multi-attitude aircraft, the driving part is a pneumatic cylinder, and a piston rod of the pneumatic cylinder is fixedly connected with the sealing cover.
The beneficial effects of the invention are as follows:
1. the sealing device has a self-cleaning function, a special cleaning mechanism is not required to be arranged, the drift diameter of the air inlet pipe is not influenced, and the requirements on size and weight are low;
2. the end face sealing adopts a conventional sealing mode, has high technical maturity, convenient purchase and strong pressure bearing capacity, does not have abrasion with a sealing face and the risk of being torn by external hydraulic pressure, and can stably work for a long time in a water purification environment;
3. the radial seal has self-cleaning capability, the seal with the pipe wall is automatically realized by utilizing external hydraulic pressure, the temporary seal after the end face seal fails in a turbid water environment is mainly realized, and the risk of abrasion and tearing can be reduced by timely checking and replacing; the end face seal and the radial seal are different in effective time and are mutually standby, so that the sealing reliability of the air inlet pipe can be further improved.
Drawings
Fig. 1 is a schematic view of a multi-aircraft air inlet duct sealing structure.
In the figure: 1-a sealing cover, 2-a third sealing ring, 3-a first sealing ring, 4-a second sealing ring, 5-a pipe body and 6-a driving piece.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
The application provides a many navigation attitude ware intake pipe, including body 5, set up in the sealed lid 1 of body 5 tip, along the driving piece 6 of the sealed lid 1 of body 5 axial drive. The driving member 6 can drive the sealing member to move axially along the pipe body 5, such as driving the sealing cover 1 to move downwards and cover the pipe opening of the pipe body 5, so as to plug the pipe body 5, or driving the sealing cover 1 to leave the pipe opening of the pipe body 5, so that the pipe body 5 is communicated with the outside. The sealing cover 1 is provided with an inserting section matched with the inner wall of the pipe body 5, when the sealing cover 1 covers the pipe body 5, the inserting section and the inner wall of the pipe body 5 radially form a section of overlapping, and the outer diameter of the inserting section is approximately equal to the inner diameter of the pipe body 5 so as to realize better inserting matching of the two. The radial sealing structure is arranged on the inner wall of the inserting section and the inner wall of the pipe body 5 and at least comprises a first sealing ring 3 and a second sealing ring 4 which are provided with openings, and the openings of the first sealing ring 3 and the second sealing ring 4 are arranged oppositely along the axial direction of the pipe body 5, so that the openings protrude out of the radial part of the sealing cover 1 to form a scraping structure on the inner wall of the pipe body 5. Openings of the first sealing ring 3 and the second sealing ring 4 are upward along the axial direction of the pipe body 5 and downward along the axial direction of the pipe body 5 respectively, the second sealing ring 4 with the downward opening utilizes a scraping method in a downward movement process to clean foreign matters such as silt and the like attached to the surface of the inner wall of the pipe body 5, the pipe wall is recovered to be smooth, and when end face sealing leakage occurs due to foreign matter inclusion, the first sealing ring 3 with the upward opening is opened to be large under the action of water pressure and forms radial sealing with the inner wall of the pipe body 5.
In some embodiments, the sealing cap 1 and the pipe body 5 are provided with a third sealing ring 2 at the axial end face. Sealed lid 1 receives 6 pulling forces of driving piece to move down, until third sealing washer 2 and body 5 up end contact, third sealing washer 2 receives the pressure to take place deformation and produce sealed effect. This embodiment is through under 1 radial seal's of sealed lid prerequisite originally, set up third sealing washer 2 and realized axial seal, further improved the sealed effect before body 5 and sealed lid 1.
In some embodiments, the third sealing ring 2 is sleeved on the periphery of the insertion section and can be pressed against the sealing cover 1 by the end surface of the tube 5 when the sealing cover 1 covers the tube 5. Specifically, 1 bottom end face of sealed lid forms the sealing washer mounting groove, and this sealing washer mounting groove diameter is great to when body 5 and 1 sealed cooperation of sealed lid, the sealing washer of body 5 in the sealing washer mounting groove of crimping can be accurate. In this application, the firstThree seal rings 2 are V D The third seal ring 2 is an end seal ring, and it can also be a common end seal elastic element in practical application.
In some embodiments, the plug section is provided with a plurality of annular grooves around its periphery, and the first and second sealing rings 3 and 4 are fixed in the annular grooves, respectively. Compared with the sealing ring mounting groove disclosed in the previous embodiment, the diameter of the annular groove is relatively small, so that when the first sealing ring 3 and the second sealing ring 4 are sleeved in the annular groove, axial limiting of the first sealing ring 3 and the second sealing ring 4 is formed. The person skilled in the art can understand that, the number of the sealing rings arranged on the periphery of the insertion section is not limited, and in practical application, a plurality of pairs of sealing rings with openings arranged in a back direction can be arranged according to the length of the insertion section or the sealing requirement to ensure the sealing and self-cleaning functions.
In order to ensure the axial and radial sealing at the same time, 3 sealing rings are arranged on the sealing cover 1, and the sealing cover 1 vertically moves under the pushing of the driving piece 6 to realize the extension and the positioning of the air inlet pipe; the pipe body 5 is kept still, and the end face and the inner wall face of the pipe body are matched with the sealing ring to realize a sealing function.
In some embodiments, the axial end surface of the pipe body 5 is provided with a guiding structure along the plugging direction of the plugging section. When body 5 and sealed lid 1 take place relative movement, guide structure can make the grafting section of sealed lid 1 insert the 5 inner walls of body fast, utilizes guide structure can avoid opening decurrent second sealing washer 4 extrusion to tear. Further, the guide structure is a semicircular bulge arranged on the end face of the shaft of the pipe body 5, and the arc surface of the semicircular bulge can play a role in guiding and can further generate a linear sealing form with the third sealing ring 2, so that the sealing effect is further improved.
It will be appreciated by those skilled in the art that the first seal 3 is a Z-seal, V-seal D A profile seal, a piston rod seal or a lip seal. Similarly, the second sealing ring 4 is a Z-shaped sealing ring and a V-shaped sealing ring D A profile seal, a piston rod seal or a lip seal.
In some embodiments, the driving member 6 is a pneumatic cylinder, a piston rod of the pneumatic cylinder is fixedly connected with the sealing cover 1, and the pneumatic cylinder has a simple and reliable structure, and can ensure reliability in a long-term use process.
In the prior art, the end face seal is used as a conventional sealing means and is mainly used in a water purification environment, foreign matter possibly exists to mix with the water to cause the end face seal effect to be reduced when the water purification device is used in a turbid water environment, the radial seal structure with the self-cleaning function is used as a main seal structure, the radial seal structure and the axial seal structure are different in effective time, and the radial seal structure and the axial seal structure are mutually standby and can further improve the sealing reliability of the air inlet pipe.
The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A multi-aircraft air intake duct, comprising:
a pipe body;
the sealing cover is arranged at the end part of the pipe body;
a driving member for driving the sealing cover along the axial direction of the pipe body;
the sealing cover is provided with an insertion section matched with the inner wall of the pipe body, the insertion section is provided with a radial sealing structure, the radial sealing structure at least comprises a first sealing ring and a second sealing ring which are provided with openings, and the openings of the first sealing ring and the second sealing ring are arranged in a back-to-back mode in the axial direction of the pipe body, so that the openings protrude out of the radial part of the sealing cover and the inner wall of the pipe body forms a scraping structure.
2. The intake tube for multi-state aircraft according to claim 1, wherein a third sealing ring is arranged on the end face of the sealing cover and the end face of the tube body.
3. The intake tube for a multi-aircraft as claimed in claim 2, wherein the third sealing ring is sleeved around the periphery of the insertion section and can be pressed against the sealing cover by an axial end surface of the tube when the sealing cover covers the tube.
4. The intake tube for multi-state aircraft according to claim 2, wherein the third sealing ring is a V-shaped sealing ring D And (4) forming a sealing ring.
5. The multi-aircraft air inlet duct according to claim 1, characterized in that a plurality of annular grooves are provided around the plug section, and the first sealing ring and the second sealing ring are fixed in the annular grooves, respectively.
6. The multi-aircraft air inlet pipe according to claim 1, wherein a guide structure is arranged on the end face of the tubular body in the plugging direction of the plugging section.
7. The multi-aircraft air inlet duct according to claim 6, wherein the guiding structure is a semi-circular protrusion provided on the end surface of the tubular body.
8. The multi-aircraft air inlet duct according to claim 1, characterized in that said first sealing ring is a Z-seal ring, a V-seal ring D A profile seal, a piston rod seal or a lip seal.
9. The intake tube for multi-state aircraft according to claim 1, wherein the second sealing ring is a Z-shaped sealing ring or a V-shaped sealing ring D A profile seal, a piston rod seal or a lip seal.
10. The multi-aircraft air intake duct of claim 1, wherein the drive member is a pneumatic cylinder, and a piston rod of the pneumatic cylinder is fixedly connected to the sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367795.1A CN112594099B (en) | 2020-11-26 | 2020-11-26 | Air inlet pipe of multi-state aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367795.1A CN112594099B (en) | 2020-11-26 | 2020-11-26 | Air inlet pipe of multi-state aircraft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112594099A CN112594099A (en) | 2021-04-02 |
| CN112594099B true CN112594099B (en) | 2022-10-28 |
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ID=75187607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011367795.1A Active CN112594099B (en) | 2020-11-26 | 2020-11-26 | Air inlet pipe of multi-state aircraft |
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| Country | Link |
|---|---|
| CN (1) | CN112594099B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2305181A1 (en) * | 1972-02-02 | 1973-08-09 | Parisienne Outillage | AUXILIARY CLEANING DEVICE FOR A PNEUMATIC DEVICE |
| JPH0972427A (en) * | 1995-09-04 | 1997-03-18 | Nippon Marine Techno Kk | Stern pipe sealing device |
| CN104067037A (en) * | 2012-07-27 | 2014-09-24 | 伊格尔工业股份有限公司 | Stern tube sealing device |
| CN104523172A (en) * | 2015-01-13 | 2015-04-22 | 珠海优特电力科技股份有限公司 | Liquid storage device and storage cover of dosing machine |
| CN107990002A (en) * | 2017-12-25 | 2018-05-04 | 中钢集团西安重机有限公司 | A kind of short stress rolling mill pull rod from scale removal sealing device |
-
2020
- 2020-11-26 CN CN202011367795.1A patent/CN112594099B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2305181A1 (en) * | 1972-02-02 | 1973-08-09 | Parisienne Outillage | AUXILIARY CLEANING DEVICE FOR A PNEUMATIC DEVICE |
| JPH0972427A (en) * | 1995-09-04 | 1997-03-18 | Nippon Marine Techno Kk | Stern pipe sealing device |
| CN104067037A (en) * | 2012-07-27 | 2014-09-24 | 伊格尔工业股份有限公司 | Stern tube sealing device |
| CN104523172A (en) * | 2015-01-13 | 2015-04-22 | 珠海优特电力科技股份有限公司 | Liquid storage device and storage cover of dosing machine |
| CN107990002A (en) * | 2017-12-25 | 2018-05-04 | 中钢集团西安重机有限公司 | A kind of short stress rolling mill pull rod from scale removal sealing device |
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| Publication number | Publication date |
|---|---|
| CN112594099A (en) | 2021-04-02 |
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