CN115435641B - Firing barrel opening sealing device for underwater firearm and mounting method thereof - Google Patents
Firing barrel opening sealing device for underwater firearm and mounting method thereof Download PDFInfo
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- CN115435641B CN115435641B CN202211070496.0A CN202211070496A CN115435641B CN 115435641 B CN115435641 B CN 115435641B CN 202211070496 A CN202211070496 A CN 202211070496A CN 115435641 B CN115435641 B CN 115435641B
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- sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
- F41F1/00—Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons; Harpoon guns
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/32—Muzzle attachments or glands
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a transmitting nozzle sealing device for an underwater gun and an installation method thereof, and relates to the technical field of underwater gun transmission. The invention can reduce the launching resistance, avoid the sealing failure of the nozzle before the projectile is launched, and ensure the normal running of the underwater launching experiment.
Description
Technical Field
The invention relates to the technical field of underwater firearm firing, in particular to a firing barrel opening sealing device for an underwater firearm and an installation method thereof.
Background
With the continuous development of marine equipment technology, underwater firearms are becoming popular research objects for various nationalities. Different from the emission in the air, the resistance of the underwater emission is larger, the cavitation multiphase flow field formed in the water entering process of the projectile is more complex, and the shock wave intensity is higher before the projectile, and the gunpowder gas shock wave can be strengthened by certain compression, so that the gun structure and the carrier are extremely likely to be damaged, and even the life safety of operators is threatened. Therefore, in combination with the special underwater environment, it is necessary to study the underwater firearm firing device.
The firing of underwater firearms is largely divided into total submerged firing and closed firing. Under the condition of total submerged launching, the gun barrel is completely submerged in water, the launching barrel is also filled with water, and the projectile launching resistance is high; under the closed emission condition, the emission cylinder is filled with air, so that the emission resistance is relatively small, but water in an external flow field is prevented from entering by virtue of a sealing membrane set arranged at the opening of the emission cylinder. When a closed underwater emission experiment is carried out, the projectile accelerates in the emission barrel, the sealing membrane of the barrel opening is broken and then enters an external flow field, the backflow phenomenon caused by the sealing failure of the barrel opening is extremely easy to occur in the process, the barrel is corroded, and the normal operation of underwater emission can be influenced when serious.
Disclosure of Invention
The invention aims to provide a transmitting nozzle sealing device for an underwater gun and an installation method thereof, which are used for solving the problems in the prior art, reducing the transmitting resistance, avoiding the sealing failure of the nozzle before the projectile is transmitted and ensuring the normal running of an underwater transmitting experiment.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a transmitting nozzle sealing device for an underwater gun, which comprises a sealing cylinder, a cylinder cover, a sealing diaphragm, a pressure sensor, a controller and an opening and closing mechanism, wherein one end of the sealing cylinder is used for being detachably connected with the transmitting cylinder of the underwater gun, the other end of the sealing cylinder is rotatably connected with one end of the cylinder cover and can be closed through the cylinder cover, the sealing diaphragm is used for being arranged at the transmitting nozzle and sealing the transmitting nozzle, the pressure sensor and the opening and closing mechanism are electrically connected with the controller, the pressure sensor is used for detecting the internal pressure of the transmitting cylinder and transmitting the detected pressure value to the controller, the controller is used for controlling the opening and closing mechanism to act, and the opening and closing mechanism is used for driving the cylinder cover to rotate to open or seal one end of the sealing cylinder.
Preferably, openings are formed at two ends of the sealing cylinder, one end face of the sealing cylinder is used for being connected with the middle annular bulge of the transmitting cylinder through an outer bolt, and the other end of the sealing cylinder is used for being connected with the cylinder cover.
Preferably, an outer sealing ring is arranged at the opening part for contacting with the outer wall of the transmitting cylinder, and the outer sealing ring is used for sealing between the inner wall of the opening and the outer wall of the transmitting cylinder.
Preferably, a sealing gasket is installed at the opening for contacting with the cylinder cover, and the sealing gasket is used for sealing between the inner wall of the opening and the outer wall of the cylinder cover.
Preferably, an annular wall is further fixed on the end face of the sealing cylinder, used for installing the cylinder cover, the annular wall extends to a position close to the transmitting cylinder, and the sealing diaphragm is installed between the annular wall and the transmitting cylinder opening.
Preferably, the device further comprises a sealing plug, wherein the outer edge of the sealing plug is connected with the end face of the transmitting cylinder opening through an inner bolt, a communication opening is formed in the middle of the sealing plug, an annular groove coaxial with the communication opening is formed in one end of the sealing plug, the other end of the sealing plug is provided with the pressure sensor and is used for extending into the transmitting cylinder, the outer wall of the sealing plug and the inner wall of the transmitting cylinder are sealed through a plurality of inner sealing rings, the sealing membrane covers the communication opening, and the outer edge of the sealing membrane is tightly pressed in the annular groove through the annular wall, so that the sealing membrane is fixed.
Preferably, the annular wall is provided with a plurality of through holes, and the through holes can penetrate through the annular wall.
Preferably, the cylinder cover is rotatably connected with the sealing cylinder through a rotating shaft, the opening and closing mechanism is a motor, and an output shaft of the motor is connected with the rotating shaft and can control the rotating shaft to rotate so as to open or close the cylinder cover.
Preferably, an air pump is further arranged in the sealing cylinder, and the air pump is electrically connected with the controller.
The invention also discloses a mounting method of the launching nozzle sealing device for the underwater firearm based on any one of the technical proposal, which comprises the following steps:
s1, installing a pressure sensor on one end of a sealing plug extending into the launching cylinder, and installing the sealing plug on the launching cylinder through an inner bolt;
s2, an air pump is arranged on the inner wall of a sealing cylinder, a cylinder cover is arranged at an opening at one end of the sealing cylinder through a rotating shaft, and the rotating shaft is connected with an output shaft of a motor;
and S3, installing the sealing diaphragm at the annular groove, enabling the annular wall to be aligned with the annular groove, compacting and fixing the sealing diaphragm, and connecting the sealing cylinder with the transmitting cylinder by using an external bolt.
Compared with the prior art, the invention has the following technical effects:
according to the transmitting nozzle sealing device for the underwater gun and the mounting method thereof, one end of the sealing barrel is used for being detachably connected with the transmitting barrel of the underwater gun, the other end of the sealing barrel is rotatably connected with one end of the barrel cover and can be sealed through the barrel cover, the sealing diaphragm is used for being mounted at the transmitting nozzle and sealing the transmitting nozzle so as to reduce transmitting resistance, meanwhile, the sealing diaphragm is protected through the barrel cover, the sealing diaphragm is prevented from being damaged before transmitting due to overlarge underwater pressure, normal running of underwater transmitting is influenced, the pressure sensor and the opening and closing mechanism are electrically connected with the controller, the pressure sensor is used for detecting the internal pressure of the transmitting barrel and transmitting detected pressure values to the controller, the opening and closing mechanism is controlled to act through the controller, the opening and closing mechanism drives the barrel cover to rotate to open or seal one end of the sealing barrel, quick connection and sealing of an underwater trajectory are realized, meanwhile, the sealing diaphragm is smoothly broken down and enters an external flow field, and after the transmitting process is finished, the opening and closing of the barrel cover is controlled through the controller, and water in the external flow field is prevented from entering.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a port seal for an underwater firearm according to the first embodiment;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the structure of the cylinder cover in the first embodiment;
FIG. 4 is a schematic view of the structure of the nozzle in the first embodiment;
fig. 5 is a cross-sectional view of the sealing plug in the first embodiment;
FIG. 6 is a cross-sectional view of the seal cartridge in the first embodiment;
in the figure: 100-a launching nozzle sealing device for an underwater gun, 1-a launching tube, 2-an outer sealing ring, 3-an outer bolt, 4-an air pump, 5-a sealing tube, 6-a pressure sensor, 7-an inner sealing ring, 8-a through hole, 9-a sealing gasket, 10-a tube cover, 11-a sealing diaphragm, 12-a rotating shaft, 13-an inner bolt, 14-a sealing plug, 15-an annular wall and 16-an annular groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a transmitting nozzle sealing device for an underwater gun and an installation method thereof, which are used for solving the technical problems that the conventional underwater gun has large transmitting resistance, the sealing of the nozzle is easy to lose efficacy before the projectile is transmitted, and the normal running of an underwater transmitting experiment is influenced.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
As shown in fig. 1-6, this embodiment provides a transmitting nozzle sealing device 100 for an underwater gun, including a sealing barrel 5, a barrel cover 10, a sealing membrane 11, a pressure sensor 6, a controller and an opening and closing mechanism, one end of the sealing barrel 5 is used for being detachably connected with the transmitting barrel 1 of the underwater gun, the other end of the sealing barrel 5 is rotatably connected with one end of the barrel cover 10 and can be closed by the barrel cover 10, the sealing membrane 11 is used for being installed at the transmitting nozzle and blocking the transmitting nozzle, so as to reduce transmitting resistance, meanwhile, the sealing membrane 11 is protected by the barrel cover 10, the sealing membrane 11 is prevented from being damaged before transmitting due to overlarge underwater pressure, normal running of underwater transmitting is influenced, the pressure sensor 6 and the opening and closing mechanism are electrically connected with the controller, the pressure sensor 6 is used for detecting internal pressure of the transmitting detected pressure value to the controller, when the pressure reaches a set value, the opening and closing mechanism is controlled by the controller to act, the opening and closing mechanism drives the barrel cover 10 to be rotated to open or close one end of the sealing barrel 5, thereby realizing rapid protection of a trajectory, the underwater flow field is guaranteed, the opening and closing mechanism is smoothly controlled by the flow field, and the opening and closing mechanism is controlled to be closed after the sealing membrane 11 is opened, and the outside is closed.
Specifically, the opening has all been seted up at the both ends of seal tube 5, and then the projectile of being convenient for gets into in the seal tube 5 and launches smoothly, and the one end face of seal tube 5 is used for being connected through outer bolt 3 with the middle part annular bulge of launch tube 1, and the other end of seal tube 5 is used for connecting cover 10, is convenient for realize the shutoff of launch tube mouth department and opens.
The opening part for being in contact with the outer wall of the transmitting cylinder 1 is provided with an outer sealing ring 2, and the outer sealing ring 2 is used for sealing between the inner wall of the opening and the outer wall of the transmitting cylinder 1, so that the tightness of the connecting part is ensured.
A sealing gasket 9 is installed to the opening part for with cover 10 contact, and sealing gasket 9 is used for sealing between the inner wall of open-ended and the outer wall of cover 10 to the cover 10, through sealing gasket 9's elasticity to and sealing gasket 9 and the frictional force between the cover 10, guarantees cover 10 shutoff in the opening part, improves sealing performance simultaneously.
The end face of the sealing cylinder 5 for installing the cylinder cover 10 is also fixedly provided with an annular wall 15, the annular wall 15 extends to a position close to the transmitting cylinder 1, the annular wall 15 is coaxial with the opening, the sealing diaphragm 11 is arranged between the annular wall 15 and the transmitting cylinder opening, and the transmitting cylinder opening is sealed before transmitting through the sealing diaphragm 11.
The embodiment provides a launch nozzle sealing device 100 for a gun under water still includes sealing plug 14, the terminal surface of sealing plug 14's outer fringe and launch nozzle passes through interior bolt 13 to be connected, the intercommunication mouth has been seted up at the middle part of sealing plug 14, can be used for the projectile to pass through, the coaxial ring channel 16 of intercommunication mouth has been seted up to one end of sealing plug 14, ring channel 16 sets up towards cover 10, install pressure sensor 6 on the terminal surface of the other end of sealing plug 14, and be used for stretching into launch tube 1, and then make pressure sensor 6 be located launch tube 1, and can detect the actual pressure in the launch tube 1, seal through a plurality of inner seal circle 7 between the outer wall of sealing plug 14 and the inner wall of launch tube 1, guarantee the compactness and the good leakproofness of connection, sealing diaphragm 11 covers in intercommunication mouth department, and compress tightly sealing diaphragm 11's outer fringe in ring channel 16 through annular wall 15, realize sealing diaphragm 11's fixed, annular wall 15 after embedding in ring channel 16, can be closely connected with annular channel 16's inner wall, guarantee the stability to sealing diaphragm 11 is fixed.
The annular wall 15 is provided with a plurality of through holes 8, the through holes 8 can penetrate through the annular wall 15, the air pump 4 is further arranged in the sealing barrel 5, the air pump 4 is electrically connected with the controller, after the launching process is finished, the air pump 4 can be controlled by the controller to work so as to change the pressure intensity in the sealing barrel 5, and water flowing into the launching barrel 1 in the launching process is discharged into the sealing barrel 5 through the vent holes, so that the situation that water in an external flow field cannot invade into the deep part of the launching barrel 1 is ensured, and the damage of an underwater gun is avoided.
The cylinder cover 10 is rotatably connected with the sealing cylinder 5 through a rotating shaft 12, the opening and closing mechanism is a motor, and an output shaft of the motor is connected with the rotating shaft 12 and can control the rotating shaft 12 to rotate so as to open or close the cylinder cover 10.
Example two
The present embodiment provides a method for installing the firing nozzle sealing device 100 for an underwater firearm according to the first embodiment, including the steps of:
s1, mounting a pressure sensor 6 on one end of a sealing plug 14 extending into the launching tube 1, and mounting the sealing plug 14 on the launching tube 1 through an inner bolt 13;
s2, the air pump 4 is arranged on the inner wall of the sealing cylinder 5, the cylinder cover 10 is arranged at an opening at one end of the sealing cylinder 5 through the rotating shaft 12, and the rotating shaft 12 is connected with an output shaft of the motor;
s3, mounting the sealing diaphragm 11 at the annular groove 16, aligning the annular wall 15 with the annular groove 16, pressing and fixing the sealing diaphragm 11, and connecting the sealing cylinder 5 with the transmitting cylinder 1 by using the outer bolt 3.
Example III
The present embodiment provides a method for using the firing nozzle sealing device 100 for an underwater firearm according to the first embodiment, including the steps of:
firstly, closing a cylinder cover 10, opening pressure sensors 6, and receiving the pressure of each pressure sensor 6 (the pressure sensor 6 is a sensor patch) in real time through a controller so as to calculate and obtain the average pressure in the transmitting cylinder 1;
when the pressure sensor 6 monitors that the pressure in the launching tube 1 exceeds a set value during an underwater launching experiment, the controller controls the opening and closing mechanism to act and drives the tube cover 10 to be opened quickly, and the projectile breaks through the sealing membrane 11 and enters an external flow field;
and thirdly, controlling the action of the opening and closing mechanism through the controller after the experiment is finished, driving the cylinder cover 10 to be closed, and controlling the air pump 4 to start working so as to suck the water in the launching cylinder 1 into the sealing cylinder 5 through pressure difference, and preventing the water flow from flowing backwards into the depth of the launching cylinder 1 to damage the underwater firearm.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (8)
1. A launch nozzle sealing device for a submarine gun, which is characterized in that: the device comprises a sealing cylinder, a cylinder cover, a sealing diaphragm, a pressure sensor, a controller and an opening and closing mechanism, wherein one end of the sealing cylinder is used for being detachably connected with a transmitting cylinder of an underwater gun, the other end of the sealing cylinder is rotatably connected with one end of the cylinder cover and can be closed by the cylinder cover, the sealing diaphragm is used for being installed at a transmitting cylinder opening and blocking the transmitting cylinder opening, the pressure sensor and the opening and closing mechanism are electrically connected with the controller, the pressure sensor is used for detecting the internal pressure of the transmitting cylinder and transmitting the detected pressure value to the controller, the controller is used for controlling the opening and closing mechanism to act, and the opening and closing mechanism is used for driving the cylinder cover to rotate to open or block one end of the sealing cylinder;
the end face of the sealing cylinder, used for installing the cylinder cover, is also fixedly provided with an annular wall, the annular wall extends to a position close to the transmitting cylinder, and the sealing diaphragm is installed between the annular wall and the transmitting cylinder opening;
still include the sealing plug, the outer fringe of sealing plug passes through interior bolted connection with the terminal surface of transmission nozzle, the intercommunication mouth has been seted up at the middle part of sealing plug, just the one end of sealing plug seted up with the coaxial ring channel of intercommunication mouth, the other end of sealing plug is installed pressure sensor to be used for stretching into in the transmission barrel, just seal through a plurality of internal seal circle between the outer wall of sealing plug and the inner wall of transmission barrel, sealing diaphragm cover in intercommunication mouth department, and through annular wall will sealing diaphragm's outer fringe compress tightly in the ring channel realizes sealing diaphragm's fixed.
2. The firing nozzle seal for an underwater firearm of claim 1 wherein: openings are formed in two ends of the sealing cylinder, one end face of the sealing cylinder is used for being connected with the middle annular bulge of the transmitting cylinder through an outer bolt, and the other end of the sealing cylinder is used for being connected with the cylinder cover.
3. The firing nozzle seal for an underwater firearm as set forth in claim 2, wherein: the opening part used for being in contact with the outer wall of the transmitting cylinder is provided with an outer sealing ring, and the outer sealing ring is used for sealing between the inner wall of the opening and the outer wall of the transmitting cylinder.
4. The firing nozzle seal for an underwater firearm as set forth in claim 2, wherein: and the opening part used for being in contact with the cylinder cover is provided with a sealing gasket, and the sealing gasket is used for sealing between the inner wall of the opening and the outer wall of the cylinder cover.
5. The firing nozzle seal for an underwater firearm of claim 1 wherein: the annular wall is provided with a plurality of through holes, and the through holes can penetrate through the annular wall.
6. The firing nozzle seal for an underwater firearm of claim 1 wherein: the cylinder cover is rotationally connected with the sealing cylinder through a rotating shaft, the opening and closing mechanism is a motor, and an output shaft of the motor is connected with the rotating shaft and can control the rotating shaft to rotate so as to open or close the cylinder cover.
7. The firing nozzle seal for an underwater firearm of claim 1 wherein: an air pump is further arranged in the sealing cylinder and is electrically connected with the controller.
8. A method of installing a firing nozzle seal for an underwater firearm based on any of claims 1-7, characterized in that: the method comprises the following steps:
s1, installing a pressure sensor on one end of a sealing plug extending into the launching cylinder, and installing the sealing plug on the launching cylinder through an inner bolt;
s2, an air pump is arranged on the inner wall of a sealing cylinder, a cylinder cover is arranged at an opening at one end of the sealing cylinder through a rotating shaft, and the rotating shaft is connected with an output shaft of a motor;
and S3, installing the sealing diaphragm at the annular groove, enabling the annular wall to be aligned with the annular groove, compacting and fixing the sealing diaphragm, and connecting the sealing cylinder with the transmitting cylinder by using an external bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211070496.0A CN115435641B (en) | 2022-09-02 | 2022-09-02 | Firing barrel opening sealing device for underwater firearm and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211070496.0A CN115435641B (en) | 2022-09-02 | 2022-09-02 | Firing barrel opening sealing device for underwater firearm and mounting method thereof |
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| Publication Number | Publication Date |
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| CN115435641A CN115435641A (en) | 2022-12-06 |
| CN115435641B true CN115435641B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211070496.0A Active CN115435641B (en) | 2022-09-02 | 2022-09-02 | Firing barrel opening sealing device for underwater firearm and mounting method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117087842A (en) * | 2023-07-28 | 2023-11-21 | 中国船舶集团有限公司第七一三研究所 | Launching tube of underwater equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5966858A (en) * | 1998-03-23 | 1999-10-19 | The United States Of America As Represented By The Secretary Of The Navy | Baffled muzzle brake and seal system for submerged gun operation |
| US6854409B1 (en) * | 2003-06-06 | 2005-02-15 | The United States Of America As Represented By The Secretary Of The Navy | Rotary electromagnetic launch tube |
| US7237353B1 (en) * | 2004-07-30 | 2007-07-03 | The United States Of America Represented By The Secretary Of The Navy | Muzzle break with gas relief membrane for an underwater gun |
| CN106197141A (en) * | 2016-07-11 | 2016-12-07 | 浙江理工大学 | The water-proof air-inflated protection device of firearms transmitting tube and method under water |
| CN206037829U (en) * | 2016-07-11 | 2017-03-22 | 浙江理工大学 | Waterproof protection device that aerifys of arms launching tube under water |
| CN111692913A (en) * | 2020-06-22 | 2020-09-22 | 中国船舶重工集团公司第七一三研究所 | Universal large-depth underwater missile launching cylinder cover structure device |
| CN113624443A (en) * | 2021-07-21 | 2021-11-09 | 西北工业大学 | Launching tube opening sealing device for underwater launching and mounting method |
-
2022
- 2022-09-02 CN CN202211070496.0A patent/CN115435641B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5966858A (en) * | 1998-03-23 | 1999-10-19 | The United States Of America As Represented By The Secretary Of The Navy | Baffled muzzle brake and seal system for submerged gun operation |
| US6854409B1 (en) * | 2003-06-06 | 2005-02-15 | The United States Of America As Represented By The Secretary Of The Navy | Rotary electromagnetic launch tube |
| US7237353B1 (en) * | 2004-07-30 | 2007-07-03 | The United States Of America Represented By The Secretary Of The Navy | Muzzle break with gas relief membrane for an underwater gun |
| CN106197141A (en) * | 2016-07-11 | 2016-12-07 | 浙江理工大学 | The water-proof air-inflated protection device of firearms transmitting tube and method under water |
| CN206037829U (en) * | 2016-07-11 | 2017-03-22 | 浙江理工大学 | Waterproof protection device that aerifys of arms launching tube under water |
| CN111692913A (en) * | 2020-06-22 | 2020-09-22 | 中国船舶重工集团公司第七一三研究所 | Universal large-depth underwater missile launching cylinder cover structure device |
| CN113624443A (en) * | 2021-07-21 | 2021-11-09 | 西北工业大学 | Launching tube opening sealing device for underwater launching and mounting method |
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