Airbag-type sealing closing device for freeboard deck through unprotected opening of penetrating object

Abstract

The utility model relates to an air bag type sealing and closing device for an unprotected opening of a freeboard deck passing through a penetrating object, the upper part of the unprotected opening of the deck is connected with a first annular plate through a split bolt and a sealing gasket, the upper part of the first annular plate is fixedly connected with a vertical cylinder body, and the inner side of the cylinder body is fixedly connected with a second annular plate; an annular rubber air bag is arranged between the first annular plate and the second annular plate, an inflation opening communicated with the annular rubber air bag is formed in the side wall of the barrel, the annular rubber air bag expands towards the middle after being inflated to block an unprotected opening of a deck, and meanwhile a penetrating object penetrates through the unprotected opening all the time and does not need to be moved away. According to the utility model, the deck opening with the penetrating object is no longer used as an unprotected opening, so that the requirements of ship stability and load line convention are met; a clamp is not needed, and the problem that the clamp is inconvenient to disassemble and assemble is solved; through remote control and on-site operation, the air bag can reach different pressures to meet the requirements of different tightness.

Description

Technical Field

[0001] The utility model relates to an air bag type sealing closing device for an unprotected opening of a freeboard deck through a penetration object, belonging to the technical field of ship deck design. Background Art

[0002] According to the Load Line Convention, openings on the freeboard deck must be watertight. For openings with coamings, the coaming height must meet the required tightness requirements and must be weathertight. However, when calculating ship stability, compartments with unprotected openings on the deck cannot be used as reserve buoyancy. The only solutions are to raise the opening to meet the required flooding height, or to lower the lightship's center of gravity.

[0003] Especially for unprotected openings that require penetrations such as wire ropes, fiber ropes, or cables, and these penetrations need to be retracted and extended during operation, permanent closing devices cannot be installed. Therefore, these openings can only be concentrated as much as possible, with surrounding walls installed to raise the openings above the water inlet point. However, for openings that cannot be concentrated, many pipes will be left standing on the deck. For different ship types, deck area is a key technical indicator, and both surrounding walls and pipes will affect the deck working area.

[0004] Conventional methods for temporarily closing unprotected deck openings often use clamps and seals. Bolts in various directions secure the clamps against the seals, achieving a seal. However, these methods present several issues: excessive bolts make assembly and disassembly difficult; rapid disassembly in emergencies can be difficult, leading to potential accidents and unreliable safety. Utility Model Content

[0005] The purpose of the utility model is to provide an airbag type sealing closing device for an unprotected opening of a freeboard deck through a penetration object, aiming to solve the technical problem of sealing closing design when an unprotected opening is left on the deck surface and a penetration object such as a wire rope, fiber rope, or cable needs to be passed through the opening.

[0006] The utility model adopts the following technical solutions:

[0007] An airbag-type sealing closure device for an unprotected opening on a freeboard deck through which a penetrating object passes. The upper portion of the unprotected opening of the deck is connected to a first annular plate 2 via tension bolts and a sealing gasket 1. An upright cylinder 3 is fixedly connected to the upper portion of the first annular plate 2, and a second annular plate 4 is fixedly connected to the inner side of the cylinder 3. An annular rubber airbag 5 is disposed between the first and second annular plates 2, 4. An inflation port 301 communicating with the annular rubber airbag 5 is defined on the sidewall of the cylinder 3. When inflated, the annular rubber airbag 5 expands toward the center, sealing the unprotected opening of the deck. Simultaneously, the penetrating object remains inserted through the unprotected opening without requiring removal.

[0008] Preferably, the inner diameter of the sealing gasket 1 is equal to the inner diameter of the unprotected opening, and the central holes of the first annular plate 2 and the second annular plate 4 are equal in size and smaller than the unprotected opening.

[0009] Preferably, the penetrating object is a flexible long strip object.

[0010] Furthermore, the flexible long strip object is one or more of a steel wire rope, a fiber rope or an electric cable.

[0011] Preferably, the diameter of the unprotected opening is 219 mm and the diameter of the penetration is 90 mm.

[0012] Preferably, the rubber airbag 5 is inflated by a remote-controlled inflation component.

[0013] Furthermore, a pressure sensor is provided in the rubber airbag 5, and the requirements of different tightness levels can be achieved by adjusting the pressure level.

[0014] Furthermore, a manual deflation point is provided on the top of the rubber airbag 5 .

[0015] A method for operating the above-mentioned airbag type sealing closure device for an unprotected opening through a penetration of a freeboard deck comprises the following steps:

[0016] When the penetrating object is not working, the rubber airbag is inflated to completely wrap the penetrating object to achieve a sealing effect; a pressure sensor is installed in the rubber airbag, and the pressure level can be adjusted to meet the requirements of different tightness levels;

[0017] When the penetrating object is working, the air in the airbag is discharged through remote control or on-site air release points, so that the penetrating object can be retracted and extended normally without generating friction with the rubber airbag.

[0018] The utility model has the following beneficial effects:

[0019] 1) Deck openings with penetrations are no longer considered unprotected openings, meeting the requirements of the Ship Stability and Load Line Convention.

[0020] 2) Compared with the existing temporary closing method for unprotected openings, the utility model can conveniently close and open unprotected openings on the deck that have long-term penetration objects by inflating and deflating the airbag, without the need for the use of clamps. There will be no problem of inconvenient disassembly and assembly of the clamps, and there will be no problem of the clamps being unable to be quickly disassembled in an emergency, which may lead to accidents.

[0021] 3) By setting up a rubber airbag, the airbag can be adjusted to different pressures to meet different tightness requirements through remote control and on-site operation, and the airbag pressure can be monitored in real time.

[0022] 4) Easy maintenance, the rubber airbag is replaceable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a structural cross-sectional view of an airbag-type sealing closing device for an unprotected opening of a freeboard deck through a penetration.

[0024] In the figure, 1. sealing gasket, 2. first annular plate, 3. cylinder, 4. second annular plate, 5. annular rubber airbag, 301. inflation port. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] See also Figure 1 An airbag-type sealing closure device for an unprotected opening of a freeboard deck through a penetrating object. The upper portion of the unprotected opening of the deck is connected to a first annular plate 2 via tension bolts and a sealing gasket 1. A vertical cylinder 3 is fixedly connected to the upper portion of the first annular plate 2, and a second annular plate 4 is fixedly connected to the inner side of the cylinder 3. An annular rubber airbag 5 is provided between the first annular plate 2 and the second annular plate 4. An inflation port 301 communicating with the annular rubber airbag 5 is provided on the side wall of the cylinder 3. After inflation, the annular rubber airbag 5 expands toward the center to seal the unprotected opening of the deck. At the same time, the penetrating object always passes through the unprotected opening and does not need to be removed.

[0027] In this embodiment, see Figure 1 The inner diameter of the sealing gasket 1 is equal to the inner diameter of the unprotected opening, and the center holes of the first annular plate 2 and the second annular plate 4 are equal in size and smaller than the unprotected opening.

[0028] In this embodiment, the penetrating object is a flexible long strip object, which can be a steel wire rope, a fiber rope, or an electric cable, etc., which is not shown in the drawings.

[0029] In this embodiment, the rubber airbag 5 is inflated by a remote-controlled inflation component.

[0030] In this embodiment, a pressure sensor is provided in the rubber airbag 5, and the pressure level is adjusted to meet the requirements of different tightness levels.

[0031] In this embodiment, a manual deflation point is also provided on the top of the rubber airbag 5. It is not shown in the drawings.

[0032] Continue to see Figure 1Due to the varying diameters of penetrations such as wire ropes, fiber ropes, or cables, the size of unprotected openings on different ship types varies. For example, for a 90mm diameter wire rope, the diameter of the unprotected deck opening is approximately 219mm. This device consists of two flanges, one above the other, bolted together. A rubber airbag layer is positioned between the flanges, with inflation points located on either side. The rubber airbag can be inflated remotely or locally using an inflation valve or by pressing a button. A manual deflation point is located at the top of the device.

[0033] When the penetrating object is not working, the rubber airbag is expanded by inflation to completely wrap the penetrating object to achieve a sealing effect.

[0034] When the penetrating object is working, the air in the airbag is discharged through remote control or on-site air release point, so that the penetrating object (such as wire rope) can be retracted and extended normally without causing friction with the rubber airbag and preventing the normal operation of the penetrating object.

[0035] A pressure sensor is installed in the rubber airbag, which can be remotely monitored and the pressure level can be adjusted to meet the requirements of different tightness levels.

[0036] The utility model makes the deck opening with penetrating objects no longer an unprotected opening, meeting the requirements of the Ship Stability and Load Line Convention; compared with the existing temporary closing method for unprotected openings, the utility model can conveniently close and open the unprotected deck opening with penetrating objects for a long time by flushing and deflation of the air bag, without the need to use a clamp, and there will be no problem of inconvenient disassembly and assembly of the clamp, nor will there be the problem of the clamp being unable to be quickly disassembled in an emergency situation, thereby causing an accident; by providing a rubber air bag, the air bag can be made to reach different pressures to meet different tightness requirements through remote control and on-site operation, and the air bag pressure can also be monitored in real time; maintenance is convenient, and the rubber air bag is replaceable.

[0037] The above are preferred embodiments of the present invention. Ordinary technicians in this field can also make various changes or improvements on this basis. Without departing from the overall concept of the present invention, these changes or improvements should fall within the scope of protection required by the present invention.

Claims

1. An airbag type sealing closure device for unprotected openings through penetrations on freeboard decks, characterized in that: The upper portion of the unprotected opening of the deck is connected to a first annular plate (2) via tension bolts and a sealing gasket (1); a vertical cylinder (3) is fixedly connected to the upper portion of the first annular plate (2); and a second annular plate (4) is fixedly connected to the inner side of the cylinder (3); An annular rubber airbag (5) is provided between the first annular plate (2) and the second annular plate (4), and an inflation port (301) communicating with the annular rubber airbag (5) is provided on the side wall of the cylinder (3). After being inflated, the annular rubber airbag (5) expands toward the middle to seal the unprotected opening of the deck, and at the same time, the penetrating object always penetrates the unprotected opening without needing to be removed.

2. The airbag type sealing closure device for unprotected openings through freeboard deck penetrations according to claim 1, characterized in that: The inner diameter of the sealing gasket (1) is equal to the inner diameter of the unprotected opening, and the central holes of the first annular plate (2) and the second annular plate (4) are equal in size and are both smaller than the unprotected opening.

3. The airbag type sealing closure device for unprotected openings through freeboard deck penetrations according to claim 1, characterized in that: The penetrating object is a flexible long strip object.

4. The airbag type sealing closure device for unprotected openings through freeboard deck penetrations according to claim 3, characterized in that: The flexible long strip object is one or more of a steel wire rope, a fiber rope or an electric cable.

5. The airbag type sealing closure device for unprotected openings through freeboard deck penetrations according to claim 1, characterized in that: The diameter of the unprotected opening was 219 mm and the diameter of the penetration was 90 mm.

6. The airbag type sealing closing device for unprotected openings through freeboard deck penetrations according to claim 1, characterized in that: The rubber airbag (5) is inflated by a remote-controlled inflation component.

7. The airbag type sealing closure device for unprotected openings through freeboard deck penetrations according to claim 6, characterized in that: A pressure sensor is provided in the rubber airbag (5), and the requirements of different tightness levels are achieved by adjusting the pressure level.

8. The airbag type sealing closing device for unprotected openings through freeboard deck penetrations according to claim 7, characterized in that: The top of the rubber airbag (5) is also provided with a manual air release point.

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