An underwater escape cabin with a thrust device

Abstract

The present invention discloses an underwater escape cabin with a pushing device, comprising a cabin, a hydraulic circuit and at least one valve; wherein: the hydraulic circuit comprises a water inlet and a water return port, the water inlet is arranged outside the cabin, and a hydraulic cylinder fixed to the cabin outside is arranged between the water inlet and the water return port, the hydraulic cylinder is used to push an external structure under the hydraulic drive outside the cabin to drive away the underwater escape cabin; the valve is arranged on the hydraulic circuit, and the valve is used to open the hydraulic circuit to drive the hydraulic cylinder. The underwater escape cabin with a pushing device provided by the present invention is driven by deep water pressure, does not require complex hydraulic and electric control systems, directly utilizes deep water pressure, adopts pure mechanical control, has low system complexity, and has the advantages of high reliability, simple and easy operation and maintenance, and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of submersibles, and in particular to an underwater escape cabin with a thrust device. Background Art

[0002] The underwater emergency escape cabin is an important life-saving equipment for submarines or manned submersibles. It is mainly used for emergency escape of internal personnel when the main body of the submarine or manned submersible suffers a major failure or sinks underwater.

[0003] The underwater emergency escape chamber is usually fixed and locked on the submarine or manned submersible. When an emergency situation occurs and escape is required, the personnel inside the submarine or manned submersible enter the emergency escape chamber through a dedicated channel and close the door of the emergency escape chamber. The escape personnel operate the corresponding mechanism in the escape chamber to release the escape chamber from the main body, and then use the push device to separate the escape chamber from the main body and make it obtain a certain initial velocity, and then float to the surface of the water under the action of buoyancy.

[0004] The push mechanism of the escape capsule generally uses a hydraulic cylinder, which uses pressurized oil to drive the hydraulic cylinder to move, thereby pushing the escape capsule away from the main body. As an important component of the escape capsule, the push device is usually equipped with an independent hydraulic power source to ensure that the escape capsule can be successfully detached after the power of the main body fails. This not only increases the load of the escape capsule, but may also cause the independent hydraulic power source to malfunction or become unusable due to long-term neglect of maintenance, greatly reducing the reliability of the escape capsule and causing escape failure at critical moments. Summary of the invention

[0005] The present invention provides an underwater escape capsule with a pushing device. The underwater escape capsule can directly utilize high-pressure seawater outside a submarine or a submersible as a power source when a submarine or a submersible fails or crashes, driving a hydraulic cylinder of the pushing device to move and push the underwater escape capsule away from the submarine or the submersible body, thereby achieving the purpose of rapid escape of personnel and avoiding the problem of escape failure caused by failure to use the hydraulic power source normally.

[0006] The technical solution provided by the present invention is specifically as follows:

[0007] An underwater escape cabin with a thrust device comprises a cabin body, a hydraulic circuit and at least one valve; wherein:

[0008] The hydraulic circuit includes a water inlet and a water return port, the water inlet is arranged outside the cabin, and a hydraulic cylinder fixed to the cabin is arranged between the water inlet and the water return port, the hydraulic cylinder is used to push the external structure under the hydraulic drive outside the cabin to drive away the underwater escape cabin;

[0009] The valve is arranged on the hydraulic circuit, and is used to open the hydraulic circuit to drive the hydraulic cylinder.

[0010] On the basis of the above technical solution, the hydraulic cylinder comprises a hydraulic cylinder body, a piston and a piston rod, and the inner cavity of the hydraulic cylinder body is divided into a rodless cavity and a rod cavity by the piston.

[0011] On the basis of the above technical solution, the rodless chamber is connected to the water inlet, and the valve includes at least one water inlet stop valve, which is located between the water inlet and the rodless chamber.

[0012] On the basis of the above technical solution, before the water inlet stop valve is opened, the rodless chamber is in a normal pressure state.

[0013] On the basis of the above technical solution, the water inlet is located on the cabin body, and the hydraulic circuit also includes a hydraulic cylinder water inlet arranged on the cabin body, and the hydraulic cylinder water inlet is connected to the rodless chamber; the water inlet and the hydraulic cylinder water inlet are both connected to a water inlet stop valve at corresponding positions in the cabin, and the two water inlet stop valves are connected by a pipeline.

[0014] On the basis of the above technical solution, the hydraulic circuit also includes a hydraulic cylinder water return port arranged on the cabin body, and the hydraulic cylinder water return port is connected to the rod chamber.

[0015] On the basis of the above technical solution, a return water stop valve is connected to the corresponding position in the return water port cabin of the hydraulic cylinder.

[0016] On the basis of the above technical solution, the piston rod is connected to a push plate.

[0017] On the basis of the above technical solution, the hydraulic circuit includes a plurality of hydraulic cylinders connected in parallel, and the plurality of hydraulic cylinders are all connected to the push plate.

[0018] The beneficial effects brought about by the technical solution provided by the present invention include:

[0019] The underwater escape cabin with a thrust device provided by the present invention is driven by deep water pressure, does not require complicated hydraulic and electric control systems, directly utilizes deep water pressure, adopts pure mechanical control, has low system complexity, and has the advantages of high reliability, simple and easy operation and maintenance, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of an underwater escape cabin with a thrust device provided in an embodiment of the present invention;

[0022] Figure 2A diagram showing the positional relationship between an underwater escape cabin with a thrust device and an external structure provided in an embodiment of the present invention;

[0023] In the figure, 1-cabin, 2-hydraulic circuit, 20-water return port, 21-water inlet, 22-hydraulic cylinder, 221-hydraulic cylinder body, 2211-rodless chamber, 2212-rod chamber, 222-piston, 223-piston rod, 23-hydraulic cylinder water inlet, 24-hydraulic cylinder water return port, 3-valve, 31-water inlet stop valve, 32-water return stop valve, 4-push plate, 5-external structure. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The underwater escape cabin with a pushing device provided by the present invention comprises a cabin body 1, a hydraulic circuit 2 and at least one valve 3, wherein: the hydraulic circuit 2 comprises a water inlet 21 and a water return port 20, the water inlet 21 is arranged outside the cabin body 1, and a hydraulic cylinder 22 fixed to the outside of the cabin body 1 is arranged between the water inlet 21 and the water return port 20, the hydraulic cylinder 22 is used to push the external structure under the hydraulic drive outside the cabin body 1 to drive away the underwater escape cabin; at least one valve 3 is arranged on the hydraulic circuit 2, and the valve 3 is used to open the hydraulic circuit 2 to drive the hydraulic cylinder 22.

[0026] The working principle of the underwater escape capsule with a pushing device provided by the present invention is as follows: after the capsule 1 completes the release action from the external structure 5 (such as a submarine), the valve 3 is opened to start the hydraulic circuit 2, and the water outside the capsule 1 enters the hydraulic cylinder 22 through the water inlet 21. The hydraulic cylinder 22 works to push the external structure 5 located outside the capsule 1, providing the initial power for the underwater escape capsule to move away, so that the capsule 1 quickly leaves the outside and drives away the external structure 5, thereby achieving the purpose of successful escape.

[0027] In some embodiments, the hydraulic cylinder 22 includes a hydraulic cylinder body 221, a piston 222, and a piston rod 223. The inner cavity of the hydraulic cylinder body 221 is divided into a rodless cavity 2211 and a rod cavity 2212 by the piston 222. Due to the hydraulic pressure difference between the rodless cavity 2211 and the rod cavity 2212, the piston 222 moves under the action of the hydraulic pressure, providing the initial power for the hydraulic cylinder 22 to push the external structure, so that the cabin 1 obtains an initial velocity to leave the external structure 5.

[0028] In some embodiments, the rodless chamber 2211 is connected to the water inlet 21, and the valve 3 includes at least one water inlet stop valve 31, which is located between the water inlet 21 and the rodless chamber 2211. High-pressure water enters the rodless chamber 2211 of the hydraulic cylinder 22 through the water inlet 21, forcing the piston 222 to move toward the rod chamber 2212, thereby pushing the piston rod 223 to push the external structure 5, providing the initial power for the underwater escape cabin to move away from the external structure 5.

[0029] In some embodiments, before the water inlet stop valve 31 is opened, the rodless chamber 2211 is in a normal pressure state. After the water inlet stop valve 31 is opened, high-pressure water quickly enters the rodless chamber 2211 under the action of the pressure difference.

[0030] In some embodiments, the water inlet 21 is located on the cabin 1, and the hydraulic circuit 2 also includes a hydraulic cylinder water inlet 23 provided on the cabin 1, and the hydraulic cylinder water inlet 23 is connected to the rodless chamber 2211; the water inlet 21 and the hydraulic cylinder water inlet 23 are both connected to a water inlet stop valve 31 at corresponding positions in the cabin, and the two water inlet stop valves 31 are connected through a pipeline. After the water inlet stop valve 31 is opened, the water outside the cabin 1 passes through the water inlet 21 outside the cabin 1, the first water inlet stop valve 31 inside the cabin 1, the pipeline inside the cabin 1, the second water inlet stop valve 31 inside the cabin 1, the pipeline outside the cabin 1, the hydraulic cylinder water inlet 23 outside the cabin 1, and the rodless chamber 2211 outside the cabin 1 in sequence under the action of water pressure, thereby reaching the rodless chamber 2211 to push the piston 222 to move.

[0031] In some embodiments, the hydraulic circuit 2 also includes a hydraulic cylinder return port 24 provided on the cabin 1, and the hydraulic cylinder return port 24 is connected to the rod chamber 2212, and the working fluid (such as water) in the rod chamber 2212 is discharged into the normal pressure environment in the cabin 1 through the hydraulic cylinder return port 24.

[0032] In some embodiments, a return water stop valve 32 is connected to the corresponding position in the cabin of the hydraulic cylinder return water port 24. When not in use, the return water stop valve 32 is closed; when the push device is started, the return water stop valve 32 is first opened to connect the rod chamber 2212 with the normal pressure environment, so that the piston 222 can be pushed to one end of the rod chamber 2212.

[0033] In some embodiments, when not in use, the piston 222 is preset at one end of the rodless chamber 2211; when the jacking device is started, the return water stop valve 32 is first opened to connect the hydraulic cylinder return water port 24 with the normal pressure environment, and then the water inlet stop valve 31 is opened. After the high-pressure water outside the cabin 1 flows into the rodless chamber 2211, the rodless chamber 2211 obtains high pressure, and the rod chamber 2212 is at normal pressure. Under the action of the hydraulic pressure, the piston 222 moves toward one end of the rod chamber 2212, pushing the piston rod 223 to contact the external structure 5, thereby obtaining a reverse thrust of the external structure.

[0034] In some embodiments, the piston rod 223 is connected to a push plate 4, and the push plate 4 is in direct contact with the external structure to increase the force-bearing area of ​​the external structure.

[0035] In some embodiments, the hydraulic circuit 2 includes a plurality of hydraulic cylinders 22 connected in parallel, and the plurality of hydraulic cylinders 22 are all connected to the push plate 4. The plurality of hydraulic cylinders 22 connected in parallel enables the cabin 1 to obtain a greater thrust, thereby obtaining a greater acceleration.

[0036] like Figure 1 and Figure 2 As shown, an underwater escape cabin with a thrust device provided by an embodiment of the present invention includes a cabin body 1 and four parallel hydraulic cylinders 22, wherein: the hydraulic cylinder 22 is fixed to the outer bottom of the cabin body 1, the hydraulic cylinder 22 includes a hydraulic cylinder body 221, a piston 222 and a piston rod 223, and the inner cavity of the hydraulic cylinder body 221 is divided into a rodless cavity 2211 and a rod cavity 2212 by the piston 222; the water inlet 21 is located in the water body outside the cabin body 1, connected to the rodless cavity 2211 located at the upper part of the hydraulic cylinder body 221, and two water inlet stop valves 31 are arranged between the water inlet 21 and the rodless cavity 2211; the return water port 20 is located in the normal pressure environment in the cabin body 1, connected to the rod cavity 2212 located at the lower part of the hydraulic cylinder body 221, and a return water stop valve 32 is arranged between the return water port 20 and the rod cavity 2212. After the cabin 1 completes the release action from the external structure 5, the return water stop valve 32 and the water inlet stop valve 31 are opened in sequence. The rod chamber 2212 of the hydraulic cylinder 22 is connected to the normal pressure environment in the cabin 1 through the return water port 20, and the rodless chamber 2211 of the hydraulic cylinder 22 is connected to the high-pressure water environment outside the cabin 1 through the water inlet 21. Under the action of the pressure difference, the high-pressure water outside the cabin 1 quickly enters the rodless chamber 2211 of the hydraulic cylinder 22 through the water inlet 21, pushing the piston 222 to move to the rod chamber 2212, and the piston rod 223 extends outward and contacts the external structure 5. The reverse force of the external structure 5 causes the cabin 1 to float up quickly.

[0037] In some embodiments, the water inlet stop valve 31 and the return water stop valve 32 are both located in the cabin 1, and the operator uses a purely mechanical method to control the opening and closing of the water inlet stop valve 31 and the return water stop valve 32. The purely mechanical operation method makes the jacking device less complex, more reliable, and easier to operate and maintain.

[0038] In some embodiments, the water inlet 21 and the water return port 20 are both connected to the side wall of the hydraulic cylinder body 221 and are close to the two ends of the hydraulic cylinder body 221. When the piston 222 moves up and down, the water inlet 21 and the water return port 20 will not be connected to the rodless cavity 2211 or the rod cavity 2212 at the same time, and external seawater cannot enter the cabin 1.

[0039] In some embodiments, when the number of the hydraulic cylinders 22 is not less than 2, the free ends of the piston rods 223 of the hydraulic cylinders 22 are all fixed on the same push plate 4, which can ensure that the pushing actions of the multiple hydraulic cylinders 22 are forced to be synchronized.

[0040] In some embodiments, the working fluid is water, which can be obtained locally, has low cost, and does not pollute the environment after discharge.

[0041] In summary, the underwater escape cabin with a thrust device provided by the present invention does not require complex hydraulic and electronic control systems, is directly driven by deep water pressure, and is controlled in a purely mechanical manner. The system has low complexity and has the advantages of high reliability, simple and easy operation and maintenance, and low cost.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0043] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An underwater escape cabin with a thrust device, characterized in that: include: Cabin (1); A hydraulic circuit (2) comprising a water inlet (21) and a water return port (20), wherein the water inlet (21) is arranged outside the cabin (1), and a hydraulic cylinder (22) fixed outside the cabin (1) is arranged between the water inlet (21) and the water return port (20), wherein the hydraulic cylinder (22) is used to push the external structure (5) under hydraulic drive outside the cabin (1) to drive the underwater escape cabin away; as well as at least one valve (3) disposed on the hydraulic circuit (2), the valve (3) being used to open the hydraulic circuit (2) to drive the hydraulic cylinder (22); the hydraulic cylinder (22) comprising a hydraulic cylinder body (221), a piston (222) and a piston rod (223); the inner cavity of the hydraulic cylinder body (221) being divided by the piston (222) into a rodless cavity (2211) and a rod cavity (2212); The rodless chamber (2211) is communicated with the water inlet (21); the valve (3) comprises at least one water inlet stop valve (31); the water inlet stop valve (31) is located between the water inlet (21) and the rodless chamber (2211); the hydraulic circuit (2) further comprises a hydraulic cylinder water return port (24) provided on the cabin (1); the hydraulic cylinder water return port (24) is connected to the rod chamber (2212).

2. The underwater escape chamber with a thrust device as claimed in claim 1, characterized in that: Before the water inlet stop valve (31) is opened, the rodless chamber (2211) is in a normal pressure state.

3. The underwater escape chamber with a thrust device as claimed in claim 1, characterized in that: The water inlet (21) is located on the cabin (1), and the hydraulic circuit (2) further comprises a hydraulic cylinder water inlet (23) provided on the cabin (1), and the hydraulic cylinder water inlet (23) is connected to the rodless chamber (2211); The water inlet (21) and the hydraulic cylinder water inlet (23) are both connected to a water inlet stop valve (31) at corresponding positions in the cabin, and the two water inlet stop valves (31) are connected via a pipeline.

4. The underwater escape chamber with a thrust device as claimed in claim 1, characterized in that: A return water stop valve (32) is connected to a corresponding position in the cabin of the hydraulic cylinder return water port (24).

5. The underwater escape chamber with a thrust device according to any one of claims 1 to 4, characterized in that: The piston rod (223) is connected to a push plate (4).

6. The underwater escape chamber with a thrust device as claimed in claim 5, characterized in that: The hydraulic circuit (2) comprises a plurality of hydraulic cylinders (22) connected in parallel, and the plurality of hydraulic cylinders (22) are all connected to the push plate (4).

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