A floating bag inflation and deflation device

Abstract

The present application provides a float bladder inflation and deflation device, comprising an air source, an on-off air valve, and an air release valve; the on-off air valve is connected to the air source, and the air release valve is connected to the on-off air valve; the valve body has an internal cavity, the valve body is connected to the on-off air valve, and the valve body is provided with an air release port; the piston valve core is provided in the internal cavity, and the piston valve core blocks the first air path; after the electric squib is detonated, the expanded gas pushes the piston valve core to move along the internal cavity, exposing the first air path to achieve communication with the air release port, and the air flows out of the air release port. The gas detonated by the electric squib pushes the piston valve core, causing the gas from the air source to enter the first air path and eventually be discharged from the air release port to inflate the float bladder, thereby helping to solve the technical problem of the lack of an underwater float bladder inflation and deflation device in the prior art and the underwater inflation device for the float bladder.

Description

Technical field:

[0001] The invention relates to the field of float bag inflation, in particular to a float bag inflation and deflation device. Background technology:

[0002] Currently, marine equipment, such as underwater vehicles and surface buoys, requires buoyancy bladders to provide sufficient buoyancy to meet various functional requirements. The bladder's inflation and deflation device releases high-pressure gas from a cylinder, inflating the bladder through associated piping.

[0003] In some special environments, float bladder inflation and deflation devices need to meet various engineering requirements, including small size, large gas storage volume, and waterproofing. Currently, commonly used compressed air-sourced inflation and deflation devices employ solenoid valves as air circuit opening and closing actuators. These devices are large, costly, and generally not waterproof, requiring additional waterproofing measures. Commonly used disposable carbon dioxide cylinder deflation devices can meet the requirements of small size and waterproofing, but they are available in limited sizes and are mostly large-aspect-ratio cylinders, making them difficult to meet diverse engineering needs.

[0004] Therefore, there is an urgent need for a float bag inflation and deflation device, which helps to solve the technical problem of lacking a underwater float bag inflation and deflation device in the prior art and carrying out an underwater inflation device for the float bag. Summary of the invention:

[0005] In one embodiment, the present invention also provides a float bag inflation and deflation device, which uses an electric squib to ignite gas to propel a piston valve core, allowing gas from the gas source to enter the first gas path and eventually be discharged from the deflation port to inflate the float bag. This helps to solve the technical problem of the lack of an underwater float bag inflation and deflation device in the prior art and the lack of an underwater inflation device for the float bag.

[0006] The float bag inflation and deflation device includes an air source, a switch air valve, and an air deflation valve;

[0007] The gas in the gas source has a predetermined pressure;

[0008] The on-off gas valve is connected to the gas source, the on-off gas valve switches the gas source on and off, and the air release valve is connected to the on-off gas valve;

[0009] The air release valve includes a valve body, a piston valve core, and an electric squib;

[0010] The valve body has an internal cavity, the valve body is connected to the switch air valve, and is introduced into the internal cavity through the first air path of the switch air valve, and the valve body is provided with an air release port;

[0011] The piston valve core is arranged in the internal cavity, and the piston valve core blocks the first air path;

[0012] The electric squib is fixed in the internal cavity so that the expanding gas generated after ignition pushes the piston valve core to move along the internal cavity and expose the first air path to achieve communication with the air vent. Finally, the gas in the air source enters the internal cavity through the first air path and then flows out through the air vent.

[0013] In one embodiment, the gas source is a high-pressure gas cylinder, and the switch gas valve is a mechanical spherical switch transfer valve.

[0014] In one embodiment, the switch valve and the air release valve are sealed by a copper gasket.

[0015] In one embodiment, a second air path is provided on the valve body, one end of the second air path is connected to the outside of the valve body, the other end of the second air path is connected to the internal cavity, the middle part of the second air path is connected to the gas inlet of the switch air valve, and one end of the second air path is sealed by a first plug.

[0016] In one embodiment, a first O-ring is used to seal the first plug and the valve body.

[0017] In one embodiment, the electric squib is connected to the threaded wall of the internal cavity via a thread, one end of the electric squib faces the piston valve core, and the other end of the electric squib is exposed from the internal cavity.

[0018] In one embodiment, a watertight adapter is provided on the outer cover of the end of the squib exposed.

[0019] In one embodiment, the watertight adapter and the valve body are sealed by a second O-ring.

[0020] In one embodiment, one end of the internal cavity is connected to the electric squib, and the other end of the internal cavity is communicated with the outside of the valve body and is blocked by a second plug.

[0021] In one embodiment, the piston valve core and the inner wall of the internal cavity are sealed by a third O-ring. Description of the drawings:

[0022] Figure 1 This is a schematic structural diagram of a float bag inflation and deflation device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic cross-sectional view of a deflation valve of a float bag inflation and deflation device according to another embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the external structure of a float bag inflation and deflation device in another embodiment of the present invention.

[0025] Reference numerals:

[0026] Gas source 1

[0027] Switch valve 2

[0028] Air release valve 3

[0029] Valve body 31

[0030] Internal cavity 311

[0031] Vent 312

[0032] Second gas path 313

[0033] First plug 314

[0034] Piston valve core 32

[0035] Electric squib 33

[0036] Copper pad 4

[0037] First O-ring 5

[0038] Watertight adapter 6

[0039] Second O-ring seal 7

[0040] Second plugging 8

[0041] Third O-ring seal 9 Specific embodiment:

[0042] In the existing technology for inflating the float bag, a high-pressure solenoid valve is generally used to achieve switch control. This structure cannot be waterproof underwater, and there are a series of technical problems such as a small number of disposable carbon dioxide cylinders. In other words, there is no perfect float-specific inflation and deflation device.

[0043] Figure 1 This is a schematic structural diagram of a float bag inflation and deflation device according to one embodiment of the present invention. Figure 2 FIG. 1 is a schematic cross-sectional view of a deflation valve of a float bag inflation and deflation device according to another embodiment of the present invention. Figure 3 FIG. 1 is a schematic diagram of the external structure of a floating bag inflation and deflation device according to another embodiment of the present invention. Figure 1 and Figure 2 ,as well as Figure 3 As shown, in one embodiment, the present invention further provides a float bag inflation and deflation device, the float bag inflation and deflation device includes an air source 1, a switch air valve 2, and an air deflation valve 3;

[0044] The gas in the gas source 1 has a predetermined pressure;

[0045] The switch valve 2 is connected to the gas source 1, and the switch valve 2 switches the gas source 1 on and off;

[0046] The air release valve 3 is connected to the switch air valve 2, and the air release valve 3 includes a valve body 31, a piston valve core 32, and an electric squib 33;

[0047] The valve body 31 has an internal cavity 311 , and is connected to the switch valve 2 , and is introduced into the internal cavity 311 through the first air path 21 of the switch valve 2 . The valve body 31 is provided with an air release port 312 ;

[0048] The piston valve core 32 is disposed in the internal cavity 311 , and the piston valve core 32 blocks the first gas path 21 ;

[0049] The electric squib 33 is fixed in the internal cavity 311 so that the expanding gas generated after ignition pushes the piston valve core 32 to move along the internal cavity 311, exposing the first gas path 21 to achieve communication with the vent 312. Finally, the gas in the gas source 1 enters the internal cavity 311 through the first gas path 21 and then flows out through the vent 312.

[0050] In this embodiment, a specific embodiment of a float bladder inflation and deflation device is provided. The electric squib 33 is a pyrotechnic device that can be ignited to produce an explosion. The expanded air generated by the explosion is located in the internal cavity 311 and between the electric squib 33 and the piston valve core 32. Therefore, when the expanded air is generated in a relatively closed and narrow space, it will push the piston valve core 32 to move. At this time, the vent 312 is connected to the first air path 21 through the internal cavity 311. Since the air source 1 has a predetermined pressure, the internal gas will be discharged from the vent 312. At this time, after the air inlet of the float bladder is connected to the vent 312, the gas will directly enter the float bladder. A specific structure of the float bladder inflation and deflation device is provided, which helps to solve the technical problem of the lack of an underwater float bladder inflation and deflation device in the prior art and the underwater inflation device for the float bladder.

[0051] In one embodiment, the gas source 1 is a high-pressure gas cylinder, and the switch gas valve 2 is a mechanical spherical switch transfer valve.

[0052] This embodiment provides a specific implementation of the gas source 1. The on / off gas valve 2 utilizes a mechanical ball-type on / off adapter valve. The high-pressure gas cylinders are available in a range of capacities and specifications, with a pressure resistance of 20 MPa or higher. The mechanical ball-type on / off adapter valve is threadedly connected to a specially designed purge valve, with one side of the adapter valve featuring a commonly used G3 / 8 threaded connection. Furthermore, the inflation volume can be precisely controlled by weighing to meet the inflation requirements of varying float bladder volumes.

[0053] In one embodiment, a copper gasket 4 is provided between the on-off valve 2 and the air release valve 3 .

[0054] In this embodiment, a specific implementation method of sealing between the switch valve 2 and the air release valve 3 through a copper gasket seal 4 is provided.

[0055] In one embodiment, a second gas path 313 is provided on the valve body 31, one end of the second gas path 313 is connected to the outside of the valve body 31, the other end of the second gas path 313 is connected to the internal cavity 311, the middle part of the second gas path 313 is connected to the gas inlet 22 of the switch gas valve 2, and one end of the second gas path 313 is blocked by a first plug 314.

[0056] In this embodiment, the present invention provides a specific gas path structure and a specific implementation method of processing through a drilling process and using a first plug 314 for blocking.

[0057] In one embodiment, the first plug 314 and the valve body 31 are sealed via a first O-ring 5 .

[0058] In this embodiment, a specific implementation method is provided in which the first plug 314 and the valve body 31 are sealed by the first O-ring 5 .

[0059] In one embodiment, the electric squib 33 is connected to the threaded wall of the internal cavity 311 by threads, one end of the electric squib 33 faces the piston valve core 32 , and the other end of the electric squib 33 is exposed from the internal cavity 311 .

[0060] In this embodiment, a specific structure for installing and fixing the electric squib 33 in the internal cavity 311 is provided to ensure the position of the electric squib 33 in the internal cavity 311 and to push the piston valve core 32 after the explosion.

[0061] In one embodiment, a watertight adapter 6 is provided on the outer cover of the end of the electric squib 33 that is exposed.

[0062] In this embodiment, a watertight adapter 6 is provided for the outer cover of the electric squib 33 to ensure that the electric squib 33 is not corroded by water and can be connected to the electric squib 33 from the outside. The watertight adapter 6 is an outer cover structure and is fixed to the valve body 31 by bolts. An axially sealed watertight adapter 6 is installed on one side of the electric squib 33 to achieve watertight protection for the electric squib 33 cable and has an underwater pressure resistance of 3MPa. The high-pressure gas cylinder has a capacity of 0.2L and can store 100L of carbon dioxide (under standard atmospheric pressure). The gas cylinder has a pressure resistance of 30MPa and a size of Φ62X151mm; the size of the deflation valve 4 is 48X42X48mm in length, width and height; the total size of the float inflation and deflation device is 211.5X86.5X54mm in length, width and height.

[0063] In one embodiment, the watertight adapter 6 and the valve body 31 are sealed via a second O-ring 7 .

[0064] In this embodiment, a specific implementation is provided in which the watertight adapter 6 and the valve body 31 are sealed by a second O-ring 7 .

[0065] In one embodiment, one end of the internal cavity 311 is connected to the electric squib 33 , and the other end of the internal cavity 311 is communicated with the outside of the valve body 31 and is blocked by the second plug 8 .

[0066] In this embodiment, a specific implementation of the internal cavity 311 based on the processing technology is provided.

[0067] In one embodiment, the piston valve core 32 and the inner wall of the internal cavity 311 are sealed by a third O-ring 9 .

[0068] In this embodiment, a specific implementation method for sealing the piston valve core 32 and the internal cavity 311 is provided.

Claims

1. A float bag inflation and deflation device, characterized in that: The float bag inflation and deflation device comprises: a gas source (1), wherein the gas in the gas source (1) has a predetermined pressure; an on-off gas valve (2) connected to the gas source (1), the on-off gas valve (2) realizing on-off of the gas source (1); and an air release valve (3), the air release valve (3) connected to the on-off gas valve (2), the air release valve (3) comprising: a valve body (31) having an internal cavity (311), the valve body (31) being connected to the switch air valve (2) and being introduced into the internal cavity (311) through the first air path (21) of the switch air valve (2), and the valve body (31) being provided with an air release port (312); a piston valve core (32) disposed in the internal cavity (311), the piston valve core (32) blocking the first air path (21); An electric squib (33) is fixed in the internal cavity (311) so that the expanded gas generated after ignition pushes the piston valve core (32) to move along the internal cavity (311) and expose the first gas path (21) to achieve communication with the air vent (312). Finally, the gas in the gas source (1) enters the internal cavity (311) through the first gas path (21) and then flows out through the air vent (312).

2. The float bladder inflation and deflation device according to claim 1, characterized in that: The gas source (1) is a high-pressure gas cylinder, and the switch gas valve (2) adopts a mechanical spherical switch transfer valve.

3. The float bladder inflation and deflation device according to claim 1 or 2, characterized in that: The switch valve (2) and the air release valve (3) are sealed via a copper pad (4).

4. The float bladder inflation and deflation device according to claim 3, characterized in that: A second gas path (313) is provided on the valve body (31), one end of the second gas path (313) is in communication with the outside of the valve body (31), the other end of the second gas path (313) is in communication with the internal cavity (311), the middle portion of the second gas path (313) is in communication with the gas inlet (22) of the switch gas valve (2), and one end of the second gas path (313) is blocked by a first plug (314).

5. The float bladder inflation and deflation device according to claim 4, characterized in that: The first plug (314) and the valve body (31) are sealed via a first O-ring (5).

6. The float bladder inflation and deflation device according to claim 5, characterized in that: The electric squib (33) is connected to the threaded wall of the internal cavity (311) via a thread, one end of the electric squib (33) faces the piston valve core (32), and the other end of the electric squib (33) is exposed from the internal cavity (311).

7. The float bladder inflation and deflation device according to claim 6, characterized in that: A watertight adapter seat (6) is provided on the outer cover of one end where the electric squib (33) is exposed.

8. The float bladder inflation and deflation device according to claim 7, characterized in that: The watertight adapter seat (6) and the valve body (31) are sealed via a second O-ring (7).

9. The float bladder inflation and deflation device according to claim 8, characterized in that: One end of the internal cavity (311) is connected to the electric squib (33), and the other end of the internal cavity (311) is communicated with the outside of the valve body (31) and is sealed by a second plug (8).

10. The float bladder inflation and deflation device according to claim 9, characterized in that: The piston valve core (32) and the inner wall of the internal cavity (311) are sealed via a third O-ring (9).

Images