Valve with self-closing function for oil ship measuring port

Abstract

The utility model discloses a valve with a self-closing function for an oil ship measuring port, which comprises a shell and an instrument main body, the top of the shell is provided with a through port, the outer side of the through port is sleeved with a joint, the top of the joint is provided with a cap which is in sealing fit, the bottom of the shell is provided with a flange, the interior of the shell is in a cone shape, and the inner side of the shell is provided with a valve core. A protruding cavity is formed in one side of the interior of the shell, a through hole is formed in one side of the cavity, a rotating shaft is arranged on the inner side of the through hole in a sleeving mode, and one end of the rotating shaft protrudes out of the cavity; in the whole measuring and sampling process, closed operation is adopted, gas is prevented from overflowing, after sampling is finished, the valve is promoted to be automatically closed through the elastic reset structure of the valve plate, gas in a cabin is prevented from overflowing, environmental pollution or life danger of operators is avoided, and meanwhile, external impurities are prevented from entering the cabin to pollute a liquid cargo oil tanker.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve with a self-closing function for measuring ports on oil tankers. Background Technology

[0002] Currently, the measuring ports in the compartments are mostly equipped with deck valves. A mounting flange is welded to the measuring port, and the deck valve is installed on the measuring port via the flange. The deck valve is a manual ball valve with a two-inch or one-inch interface, which can be connected to various measuring and sampling instruments to perform tasks such as liquid measurement and sampling within the compartment.

[0003] Many oil tankers transport liquids that are toxic or contain flammable, explosive, or volatile gases. If the deck valves are not closed after measurement or sampling, dangerous gases may leak out of the tank, polluting the environment or endangering the lives of the operators. Utility Model Content

[0004] The purpose of this invention is to provide a valve with a self-closing function for the measuring port of an oil tanker, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve with a self-closing function for measuring ports on oil tankers, comprising a housing and an instrument body, wherein the top of the housing has an opening, and a connector is fitted on the outside of the opening, the top of the connector has a sealing cap, the bottom of the housing has a flange, the interior of the housing is conical, one side of the interior of the housing has a protruding cavity, one side of the cavity has a through hole, and a rotating shaft is fitted on the inside of the through hole, with one end of the rotating shaft protruding outside the cavity;

[0006] Springs are symmetrically sleeved on the outer side of the rotating shaft. A fork is sleeved at the middle position of the outer side of the rotating shaft. A valve plate is provided at one end of the fork, and a pin is provided at the other end of the fork. The pin is connected to the valve plate. Concentric docking rings are symmetrically provided at the bottom of the valve plate. Two sets of forks are placed in the middle position of the two sets of docking rings. The pin connecting the valve plate passes through the docking ring and is movably connected to the fork. The inner and outer sides of the two sets of springs are respectively connected to the first support foot and the second support foot. The fork is located between the first support foot and the second support foot. A sealing gasket and a nut are respectively provided at one end of the outer side of the rotating shaft.

[0007] The bottom of the instrument body is provided with a conduit, which moves up and down inside the housing, and the cap is installed on the outside of the instrument body.

[0008] Preferably, four sets of threaded holes are provided at the top edge of the housing, and four sets of bolts are fitted on the outside of the joint and fixed with the threaded holes. The top and bottom of the joint are provided with sealing grooves, and sealing rings are installed on the inner side of the sealing grooves to increase the sealing effect of the inner wall of the structure.

[0009] Preferably, the top of the outer side of the connector is provided with threads, and the cap is threadedly connected to the connector to facilitate a sealed connection of the connector.

[0010] Preferably, one end of the rotating shaft extends out of the cavity, and the nut is connected to the cavity and extends to the inside of a through hole on one side of the cavity, which facilitates structural connection and sealing.

[0011] Preferably, the first support foot is in contact with the shift fork, and the second support foot is in contact with the side wall of the cavity. The addition of a connecting bracket for the spring facilitates positioning by contacting the bracket with the inner wall of the cavity, thereby improving the tightness of the structure.

[0012] Preferably, the valve plate is sealed and fitted to the bottom end of the connector to improve the sealing performance of the structure in its closed state.

[0013] The present invention provides a valve with a self-closing function for the measuring port of an oil tanker, which has at least the following beneficial effects:

[0014] 1. The entire measurement and sampling process is carried out in a closed system to prevent gas from escaping. After sampling, the valve is automatically closed by the elastic reset structure of the valve plate to prevent gas from escaping from the tank, causing environmental pollution or endangering the lives of the operators. At the same time, it also prevents external impurities from entering the tank and contaminating the liquid cargo oil tanker.

[0015] 2. Through the structural design to prevent misoperation, the valve body is designed so that no manual operation is required outside the valve body during measurement and sampling, avoiding accidental touch or operation that could open the valve and cause dangerous accidents. In addition, the two-stage protection design allows for the installation of a cap after the valve plate is sealed, thus protecting the entire valve port. The valve body structure has a high degree of integration, a compact and practical mechanism, is easy to install, and occupies little space. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the present invention;

[0017] Figure 2 This is a schematic diagram of the rotating shaft structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the spring structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the valve plate and the shift fork of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the instrument body and the shell of this utility model.

[0021] In the diagram: 1. Housing; 2. Connector; 3. Cap; 4. Valve plate; 5. Cavity; 6. Fork; 7. Spring; 8. Shaft; 9. Gasket; 10. Nut; 11. First support foot; 12. Second support foot; 13. Connecting ring; 14. Pin; 15. Guide tube; 16. Instrument body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] Please see Figure 1-5 The present invention provides an embodiment of a valve with a self-closing function for measuring ports on oil tankers, comprising a housing 1 and an instrument body 16. The top of the housing 1 has an opening, and a connector 2 is fitted on the outside of the opening. The top of the connector 2 has a sealing cap 3. The bottom of the housing 1 has a flange. The interior of the housing 1 is conical. One side of the interior of the housing 1 has a protruding cavity 5. One side of the cavity 5 has a through hole, and a rotating shaft 8 is fitted on the inside of the through hole. One end of the rotating shaft 8 protrudes outside the cavity 5. The top of the outside of the connector 2 has a thread, and the cap 3 is threaded to the connector 2 for easy sealing connection of the connector 2.

[0024] Springs 7 are symmetrically fitted on the outer side of the rotating shaft 8. A fork 6 is fitted at the middle position of the outer side of the rotating shaft 8. A valve plate 4 is provided at one end of the fork 6. A pin 14 is provided at the other end of the fork 6. The pin 14 is connected to the valve plate 4. A concentric docking ring 13 is symmetrically provided at the bottom of the valve plate 4. Two sets of forks 6 are placed in the middle position of the two sets of docking rings 13. The pin 14 connected to the valve plate 4 passes through the docking ring 13 and is movably connected to the fork 6. The inner and outer sides of the two sets of springs 7 are respectively connected to the first support foot 11 and the second support foot 12. The fork 6 is located between the first support foot 11 and the second support foot 12. A gasket 9 and a nut 10 are respectively provided at one end of the outer side of the rotating shaft 8. The valve plate 4 and the bottom end of the connector 2 are sealed and fitted together to improve the sealing performance of the closed structure.

[0025] The first support leg 11 is in contact with the shift fork 6, and the second support leg 12 is in contact with the side wall of the cavity 5. The spring connection bracket is added to facilitate positioning by contacting the bracket with the inner wall of the cavity 5 and improve the tightness of the structure.

[0026] One end of the rotating shaft 8 extends out of the cavity 5. The nut 10 is connected to the cavity 5 and extends to the inside of the through hole on one side of the cavity 5, which facilitates structural connection and sealing.

[0027] The bottom of the instrument body 16 is provided with a conduit 15, which moves up and down inside the housing 1, and the cap 3 is installed on the outside of the instrument body 16.

[0028] In Example 1, the valve plate 4 is connected to the shift fork 6 via the pin 14, causing the two concentric docking rings 13 on the valve plate 4 and the shift fork 6 to be positioned between the two docking rings 13. The pin 14 passes through the two docking rings 13 and the shift fork 6, thereby forming a movable structure with a small rotating shaft, which allows the valve plate 4 to be adjusted by a small angle around the pin 14.

[0029] In embodiment 2, the spring 7 is composed of two sets of helical spring structures and a first support leg 11 and a second support leg 12 forming a whole, forming two sets of torsion springs connected together, and connected together by the first support leg 11 and the second support leg 12 so that the shift fork 6 is placed between the first support leg 11 and the second support leg 12 in the middle, and the first support leg 11 is tightly against the shift fork 6, while the second support leg 12 on the outside of the spring 7 is supported against the side wall of the cavity 5, causing the valve plate 4 to be tightly against the bottom surface of the connector 2.

[0030] Working principle: This is used in valves with self-closing function at the measuring port of oil tankers;

[0031] During the operation of the oil tanker, when it is necessary to sample or measure the liquid in the tank, the cap 3 is unscrewed, and the conduit 15 of the main body 16 of the measuring and sampling instrument is perpendicularly aligned with the opening on the top surface of the shell. Then, it is vertically inserted into the opening in the middle of the connector 2. The sealing ring is provided in the inner hole of the connector 2, so the conduit 15 pushes open the valve plate 4 during the insertion process. With the pre-set tight connection structure, it is ensured that no gas will escape during the measurement and sampling process. As the conduit 15 continues to descend, it pushes open the valve plate 4, causing the valve plate 4 to rotate around the rotating shaft 8 and compress the spring 7, and move closer to the cavity 5, thereby opening the valve and fixing the main body 16 of the measuring and sampling instrument through the thread on the connector 2. At this time, the measurement or sampling operation can be carried out.

[0032] After the measurement and sampling operations are completed, the measuring and sampling instrument connector 2 is unscrewed and the conduit 15 is pulled out, causing the valve plate 4 to automatically close under the action of the spring force 7. Then, the cap 3 is screwed on, thereby automatically closing the valve body to form a seal and preventing the gas in the chamber from overflowing.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A valve with a self-closing function for measuring ports on oil tankers, characterized in that: Includes a housing (1) and an instrument body (16). The top of the housing (1) has an opening, and a connector (2) is fitted on the outside of the opening. The top of the connector (2) has a sealing cap (3). The bottom of the housing (1) has a flange. The interior of the housing (1) is conical. One side of the interior of the housing (1) has a protruding cavity (5). One side of the cavity (5) has a through hole, and a rotating shaft (8) is fitted on the inside of the through hole. One end of the rotating shaft (8) protrudes outside the cavity (5). Springs (7) are symmetrically sleeved on the outer side of the rotating shaft (8). A fork (6) is sleeved at the middle position of the outer side of the rotating shaft (8). A valve plate (4) is provided at one end of the fork (6). A pin (14) is provided at the other end of the fork (6), and the pin (14) is connected to the valve plate (4). A concentric docking ring (13) is symmetrically provided at the bottom of the valve plate (4). Two sets of forks (6) are placed in the middle position of the two sets of docking rings (13). The pin (14) connected to the valve plate (4) passes through the docking ring (13) and the fork (6) for movement. The inner and outer sides of the two sets of springs (7) are respectively connected to the first support foot (11) and the second support foot (12). The fork (6) is located between the first support foot (11) and the second support foot (12). A gasket (9) and a nut (10) are respectively provided at one end of the outer side of the rotating shaft (8). The bottom of the instrument body (16) is provided with a conduit (15), which moves up and down inside the housing (1), and the cap (3) is installed on the outside of the instrument body (16).

2. The valve with self-closing function for the measuring port of an oil tanker according to claim 1, characterized in that: The shell (1) has four sets of threaded holes at the top edge, and the connector (2) has four sets of bolts that are threaded and fixed to the threaded holes on the outside. The top and bottom of the connector (2) are provided with sealing grooves, and the inner side of the sealing groove is provided with a sealing ring.

3. The valve with self-closing function for the measuring port of an oil tanker according to claim 1, characterized in that: The top of the outer side of the connector (2) is threaded, and the cap (3) is threaded to the connector (2).

4. The valve with self-closing function for the measuring port of an oil tanker according to claim 1, characterized in that: One end of the rotating shaft (8) extends out of the cavity (5), and the nut (10) is connected to the cavity (5) and extends to the inside of the through hole opened on one side of the cavity (5).

5. The valve with self-closing function for the measuring port of an oil tanker according to claim 1, characterized in that: The first support foot (11) is in contact with the shift fork (6), and the second support foot (12) is in contact with the side wall of the cavity (5).

6. The valve with self-closing function for the measuring port of an oil tanker according to claim 1, characterized in that: The valve plate (4) is sealed to the bottom of the connector (2).

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