Marine deck valve device

Abstract

The utility model discloses a marine deck valve device which comprises a top cover and an upper shell, the top cover is a hexagonal sealing cover, internal threads are arranged in the top cover, a screwing cover is arranged at the bottom of the top cover, external threads are arranged on the top of the screwing cover, the top cover is in threaded connection with the external threads on the surface of the screwing cover through the internal threads, and two sets of screwing blocks are connected to the bottom of the screwing cover. The upper shell is arranged at the bottom of the screwing cover, the screwing strip is connected to the upper shell, the top of the screwing cover is provided with an external thread, and the screwing cover can be directly and rapidly connected with internal thread connectors of portable equipment such as an oil-water interface instrument, an oil sludge ruler, an oil tank pressure measuring device and an oil tank sampling device which are used for monitoring and sampling without additional conversion accessories. According to the plug-and-play design, an operator does not need to open a cabin door or enter the cabin, equipment installation and measurement operation can be directly completed on the deck, safety risks such as high-altitude falling and harmful gas contact caused by traditional manual cabin opening are avoided, and the device is particularly suitable for inflammable and explosive environments such as oil cabins.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to a marine deck valve device. Background Technology

[0002] As the core carrier of global cargo transportation, the safety and efficiency of ship operations have always been a key focus of the industry. In special vessels such as oil tankers and chemical tankers, real-time monitoring, sampling, and pressure management of liquid cargo media in compartments such as cargo oil tanks and sewage tanks are crucial to ensuring safe navigation and the quality of cargo transportation.

[0003] Currently, measuring parameters such as liquid level, pressure, and composition of liquid cargo media inside the tank usually requires operators to open the hatch or enter the tank. Such operations not only face safety risks such as falls from heights and inhalation of harmful gases, but may also lead to personal injury accidents due to the complex environment inside the tank (such as slippery surfaces and dim lighting). Especially in enclosed spaces such as oil tanks, there is a risk of flammable and explosive gases accumulating, and manual opening of the tank can easily cause safety accidents. Utility Model Content

[0004] The purpose of this invention is to provide a marine deck valve device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a marine deck valve device, comprising:

[0006] The top cover is a hexagonal sealing cover with an internal thread. The bottom of the top cover is provided with a tightening cover and the top of the tightening cover is provided with an external thread. The top cover is threadedly connected to the external thread on the surface of the tightening cover through the internal thread. Two sets of tightening blocks are connected to the bottom of the tightening cover.

[0007] The upper housing is located at the bottom of the tightening cover and is connected to a tightening strip. The tightening cover is tightened to the tightening strip on the upper housing by a tightening block. The bottom of the upper housing is threadedly connected to the lower housing. A ball valve is provided inside the lower housing, and a rotating shaft is connected to the side of the ball valve.

[0008] Preferably, one end of the rotating shaft rotates through the lower housing and is fixedly connected to the valve handle to transmit rotational power.

[0009] Preferably, the screw cap has a liquid outlet, and the bottom of the lower housing has a liquid inlet.

[0010] Preferably, the opening and closing of the liquid outlet is achieved by rotating the rotating shaft by 90° to drive the ball valve to rotate.

[0011] Preferably, the bottom of the upper housing is provided with an external thread, and the top of the lower housing is provided with an internal thread. The upper housing is threadedly connected to the internal thread in the lower housing through the external thread.

[0012] Preferably, sealing rings are provided at the screw connection between the top cover and the screw cap, at the screw connection between the screw cap and the upper housing, and at the screw connection between the bottom of the upper housing and the lower housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The top of the screw cap is provided with an external thread, which can be directly and quickly connected to the internal thread interface of portable equipment such as oil-water interface meter, oil sludge gauge, oil tank pressure measuring device, and oil tank sampling device used for monitoring and sampling. No additional conversion parts are required. This "plug and play" design allows operators to complete the equipment installation and measurement work directly on the deck without opening the hatch or entering the cabin. This avoids the safety risks of falling from height and exposure to harmful gases caused by traditional manual hatch opening. Moreover, this connection method greatly saves monitoring time and labor costs and improves the maintenance efficiency of the ship.

[0015] (2) A sealing ring is provided at the connection between the screw cap and the top cover and the upper shell. When the external thread interface is connected to the measuring equipment, it cooperates with the sealing ring through the thread tightening force to form a double sealing structure. Even in the environment of ship turbulence or high pressure of medium, it can effectively prevent gas or liquid leakage in the cabin and avoid environmental pollution or safety accidents caused by medium exposure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] In the diagram: 1. Top cover; 2. Tightening cover; 3. Tightening block; 4. Upper housing; 5. Tightening strip; 6. Lower housing; 7. Ball valve; 8. Rotating shaft; 9. Valve handle; 10. Liquid outlet; 11. Liquid inlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figure 1-3 The illustrated marine deck valve device includes:

[0022] Top cover 1, the top cover 1 is a hexagonal sealing cover and the top cover 1 is provided with internal thread, the bottom of the top cover 1 is provided with a tightening cover 2 and the top of the tightening cover 2 is provided with external thread, the top cover 1 is threadedly connected to the external thread on the surface of the tightening cover 2 through the internal thread, and the bottom of the tightening cover 2 is connected with two sets of tightening blocks 3;

[0023] The upper housing 4 is located at the bottom of the tightening cover 2 and is connected to a tightening strip 5. The tightening cover 2 is tightened to the tightening strip 5 on the upper housing 4 by a tightening block 3. The bottom of the upper housing 4 is threadedly connected to the lower housing 6. The lower housing 6 is provided with a ball valve 7 and a rotating shaft 8 is connected to the side of the ball valve 7.

[0024] One end of the rotating shaft 8 rotates through the lower housing 6 and is fixedly connected to the valve handle 9 to transmit rotational power.

[0025] The screw cap 2 has a liquid outlet 10 inside, and the bottom of the lower housing 6 has a liquid inlet 11.

[0026] By rotating the rotating shaft 890°, the ball valve 7 is rotated to open and close the liquid outlet 10.

[0027] The upper housing 4 has an external thread at its bottom, and the lower housing 6 has an internal thread at its top. The upper housing 4 is connected to the lower housing 6 by the external thread. This detachable connection method allows the operator to quickly separate the upper and lower housings and directly contact the internal ball valve 7 and rotating shaft 8 assembly by simply using a wrench or other tools to rotate the upper housing 4 when the internal components of the valve body need to be cleaned, replaced, or repaired, thus significantly shortening maintenance time.

[0028] Sealing rings are provided at the threaded connection between the top cover 1 and the tightening cover 2, the tightening cover 2 and the upper housing 4, and the threaded connection between the bottom of the upper housing 4 and the lower housing 6. The sealing rings at the threaded connection between the top cover 1 and the tightening cover 2, and the bottom of the upper housing 4 and the lower housing 6, can prevent external debris from entering or internal liquid from overflowing. The tightening cover 2 and the upper housing 4 are tightly engaged by the tightening block 3 and the tightening strip 5, forming a second line of defense with the sealing rings to prevent leakage. The sealing rings at the threaded connection are all detachable and can be replaced individually during maintenance without the need for the entire disassembly device.

[0029] The shipboard deck valve device has a valve handle 9 fixedly connected to one end of a rotating shaft 8. When the operator rotates the valve handle 9, the torque is directly transmitted to the ball valve 7 through the rotating shaft 8. The other end of the rotating shaft 8 rotates through the lower housing 6, and the rotational penetration is supported and sealed by a bearing or sealing ring to ensure that the medium does not leak during rotation. Since the ball valve 7 has a hollow spherical structure, its internal channel corresponds to the inlet 11 and outlet 10. When the valve handle 9 is rotated to a position perpendicular to the lower housing 6 at 90°, the internal channel of the ball valve 7 is completely aligned with the inlet 11 and outlet 10, allowing the medium to flow freely. (e.g.) Figure 3 As shown), the valve handle 9 is rotated 0° to be parallel to the lower housing 6. After the ball valve 7 is rotated, it blocks the connection path between the liquid inlet 11 and the liquid outlet 10. The cut-off is achieved by the tight fit between the surface of the ball valve 7 and the sealing surface of the housing.

[0030] When cargo is injected into the hold and the air or hydraulic pressure inside the hold rises above the safety threshold, the operator can rotate the valve handle 9 to 90 degrees on the deck to open the ball valve 7. The high-pressure medium inside the hold flows into the device through the inlet 11 at the bottom of the lower shell 6 and is discharged to the atmosphere or pressure relief pipe through the outlet 10 of the tightened cap 2. During the flow of the medium, the flow area of ​​the ball valve 7 is matched with the rotation angle. The pressure relief rate can be adjusted by controlling the rotation speed to avoid the impact caused by a sudden drop in pressure, so as to achieve the effect of pressure balance inside the hold.

[0031] When it is necessary to measure the liquid level, composition, etc. of the medium in the chamber, the interface of the portable measuring device (such as an oil-water interface meter) can be directly screwed into the external thread on the screw cap 2. When the ball valve 7 is opened by rotating the valve handle 9, the medium in the chamber can enter the valve body through the inlet 11 and flow into the measuring device through the outlet 10 for monitoring because the lower housing 6 is connected to the chamber.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A marine deck valve arrangement, c h a r a c t e r i s e d in that include: Top cover (1), the top cover (1) is a hexagonal sealing cover and the top cover (1) is provided with internal thread, the bottom of the top cover (1) is provided with a tightening cover (2) and the top of the tightening cover (2) is provided with external thread, the top cover (1) is threadedly connected to the external thread on the surface of the tightening cover (2) through the internal thread, and the bottom of the tightening cover (2) is connected with two sets of tightening blocks (3); The upper housing (4) is located at the bottom of the tightening cover (2) and a tightening strip (5) is connected to the upper housing (4). The tightening cover (2) is tightened to the tightening strip (5) on the upper housing (4) by a tightening block (3). The bottom of the upper housing (4) is threadedly connected to the lower housing (6). A ball valve (7) is provided inside the lower housing (6). A rotating shaft (8) is connected to the side of the ball valve (7).

2. A marine deck valve assembly according to claim 1, characterised in that: One end of the rotating shaft (8) rotates through the lower housing (6) and is fixedly connected to the valve handle (9) to transmit rotational power.

3. A marine deck valve assembly according to claim 1, characterised in that: The screw cap (2) is provided with a liquid outlet (10), and the bottom of the lower housing (6) is provided with a liquid inlet (11).

4. A marine deck valve assembly according to claim 3, characterised in that: By rotating the rotating shaft (8) by 90°, the ball valve (7) is rotated to open and close the outlet (10).

5. A marine deck valve assembly according to claim 1, characterised in that: The upper housing (4) has an external thread at its bottom and the lower housing (6) has an internal thread at its top. The upper housing (4) is threadedly connected to the lower housing (6) through the external thread.

6. A marine deck valve assembly according to claim 1, characterised in that: Sealing rings are provided at the screw connection between the top cover (1) and the screw-on cover (2), at the screw connection between the screw-on cover (2) and the upper housing (4), and at the screw connection between the bottom of the upper housing (4) and the lower housing (6).

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