One-way valve for underwater oil pumping operation

Abstract

The utility model relates to a one-way valve for underwater oil pumping operation, which belongs to the technical field of one-way valves and comprises a main pipe and a quick connector which are communicated with each other, the main pipe is provided with a threaded reducer pipe fixedly connected with the quick connector, and the threaded reducer pipe is provided with a thrusting nut in threaded connection with the thrusting nut. Guide rods which are symmetrically arranged and can penetrate through the top of the main pipe are arranged below the pushing nut, the guide rods are located on the two sides of the reducer pipe with the threads, the top faces of the guide rods abut against the bottom face of the pushing nut, the bottoms of the guide rods are provided with valve plates used for sealing an opening in the bottom of the reducer pipe with the threads, and reset elastic mechanisms are arranged on the guide rods. The processing cost is low; the pushing nut is rotated to drive the valve plate at the lower end of the guide rod downwards or upwards to achieve opening and closing, and operation is easy. The overall structure is light, and underwater installation and operation of divers are facilitated.

Description

Technical Field

[0001] This utility model relates to a one-way valve for underwater oil pumping operations, belonging to the field of one-way valve technology. Background Technology

[0002] During underwater oil pumping operations from sunken ships, valves need to be installed to seal the oil extraction holes drilled in the hull plating, preventing oil leakage and marine pollution. Conventional valves used in these operations are mostly knife valves or ball valves. However, these two types of valves are heavy and inconvenient to install underwater, causing significant difficulties for divers during pumping operations. Therefore, developing a lightweight, easy-to-operate one-way valve for underwater oil pumping operations that solves the efficiency problem is crucial. Utility Model Content

[0003] This invention addresses the shortcomings of the prior art by providing a one-way valve for underwater oil pumping operations.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A one-way valve for underwater oil pumping operations includes a main pipe and a quick connector. The main pipe is provided with a wired reducing tube that is fixedly connected to the quick connector. The wired reducing tube is provided with a threaded push nut. Below the push nut are symmetrically arranged guide rods that can pass through the top of the main pipe. The guide rods are located on both sides of the wired reducing tube. The top surface of the guide rods abuts against the bottom surface of the push nut. The bottom is provided with a valve plate for sealing the bottom opening of the wired reducing tube. The guide rods are provided with a reset elastic mechanism.

[0006] Furthermore, the top surface of the main tube is provided with a fixedly connected top sealing plate, the center of which is fixedly connected to the wire-reducing tube, and the top sealing plate is also provided with a through hole that matches the guide rod.

[0007] Furthermore, the valve plate is provided with a sealing gasket for sealing the bottom opening of the wire-reducing tube.

[0008] Furthermore, the reset elastic mechanism includes a spring sleeved on the guide rod, with the spring located between the main tube and the push nut.

[0009] Furthermore, the upper end of the guide rod is provided with a guide rod thread segment, and a fixing nut is provided on the guide rod thread segment, with the spring located between the main tube and the fixing nut.

[0010] Furthermore, the main pipe and the wire-reducing pipe, as well as the wire-reducing pipe and the quick coupling, are all welded into an integral sealed structure.

[0011] Compared with the prior art, the advantages of this utility model are: the structure of this application is simple, easy to assemble, and has a low processing cost; the valve plate at the lower end of the guide rod is opened and closed by rotating the jacking nut downward or upward to drive it, which is simple to operate; the overall structure is lightweight, which is convenient for divers to install and operate underwater.

[0012] Based on the above reasons, this utility model can be widely promoted in fields such as shipwreck oil extraction technology. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is the main structural view of the present invention.

[0015] Figure 3 This is a top view of the top sealing plate structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the valve plate and guide rod structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the downward-spinning structure of the push nut of this utility model.

[0018] Figure 6 This is a schematic diagram of the top-spinning structure of the push nut of this utility model.

[0019] In the diagram, 1. Main pipe; 2. Wire reducer; 3. Quick connector; 4. Push nut; 5. Valve plate; 6. Sealing gasket; 7. Guide rod; 8. Spring; 9. Fixing nut; 11. Top sealing plate; 12. Through hole; 71. Guide rod thread segment. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] like Figures 1-6As shown, a one-way valve for underwater oil pumping operations includes a main pipe 1 and a quick connector 3. The main pipe 1 is equipped with a threaded reducer 2 fixedly connected to the quick connector 3. The reducer 2 is equipped with a threaded push nut 4. Below the push nut 4 are symmetrically arranged guide rods 7 that penetrate the top of the main pipe 1. The guide rods 7 are located on both sides of the reducer 2, with the top surface of the guide rod 7 contacting the bottom surface of the push nut 4. A valve plate 5 is provided at the bottom for sealing the bottom opening of the reducer 2. A reset elastic mechanism is provided on the guide rods 7. This application is mainly used as a shut-off valve for underwater oil pumping operations, and can also be used for one-way water stop in water pipes. It can be integrated into a flange or directly connected to an oil pump, and can also be used on land. It features a simple structure, high operating efficiency, easy operation, and importantly, light weight. In use, rotating the push nut 4 downwards moves the guide rod 7 downwards, thus squeezing the reset elastic mechanism. The valve plate 5 disengages from the top sealing plate 11 and the bottom end of the wire-lined reducer 2, creating a passage between the main pipe 1 and the wire-lined reducer 2. At this point, oil pumping operations can be performed. After completion, rotating the push nut 4 upwards reverses the direction of rotation. Under the elastic force of the reset elastic mechanism, the guide rod 7 is pushed, causing the valve plate 5 to contact the top sealing plate 11 and the bottom end of the wire-lined reducer 2, thus creating a circuit break and achieving a sealing effect. It features convenient operation, high efficiency, light weight, and suitability for underwater operations.

[0022] The top surface of the main tube 1 is provided with a fixedly connected top sealing plate 11. The center of the top sealing plate 11 is fixedly connected to the wire-reducing tube 2. The top sealing plate 11 is also provided with a through hole 12 that matches the guide rod 7.

[0023] The valve plate 5 is provided with a sealing gasket 6 for sealing the bottom opening of the wire-reducing tube 2. The sealing gasket 6 is fixed on the valve plate 5 and is concentric with the valve plate 5.

[0024] The reset elastic mechanism includes a spring 8 sleeved on the guide rod 7, located between the main pipe 1 and the push nut 4. The upper end of the guide rod 7 has a guide rod thread segment 71, on which a fixing nut 9 is mounted. The spring 8 is located between the main pipe 1 and the fixing nut 9. In use, the push nut 4 is screwed upwards, and the valve plate 5, under the action of the spring 8, presses upwards against the sealing gasket 6. Simultaneously, under the pressure of the fluid inside the main pipe 1, the valve plate 5 is also pressed, causing the sealing gasket 6 to create a watertight condition, forming a one-way shut-off valve. When the push nut 4 is screwed downwards, the push rod 7 causes the valve plate 5 to move downwards, separating the sealing gasket 6 from the top sealing plate 11, connecting the main pipe 1 to the threaded reducer 2, allowing fluid to pass through.

[0025] The main pipe 1 and the wire-reducing pipe 2, as well as the wire-reducing pipe 2 and the quick connector 3, are all welded into a single sealed structure.

[0026] This application has a simple structure, is easy to assemble, and has a low processing cost; it opens and closes by rotating the push nut 4 to drive the valve plate 5 at the lower end of the guide rod 7 downward or upward, which is simple to operate; the overall structure is lightweight, which is convenient for divers to install and operate underwater.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 one-way valve for underwater oil pumping operations, characterized in that: The device includes a main pipe (1) and a quick connector (3). The main pipe (1) is provided with a wire-reducing tube (2) that is fixedly connected to the quick connector (3). The wire-reducing tube (2) is provided with a threaded push nut (4). Below the push nut (4) are symmetrically arranged guide rods (7) that can pass through the top of the main pipe (1). The guide rods (7) are located on both sides of the wire-reducing tube (2). The top surface of the guide rod (7) touches the bottom surface of the push nut (4). The bottom is provided with a valve plate (5) for sealing the bottom opening of the wire-reducing tube (2). The guide rod (7) is provided with a reset elastic mechanism.

2. The one-way valve for underwater oil pumping operations according to claim 1, characterized in that: The top surface of the main tube (1) is provided with a fixedly connected top sealing plate (11), the center of which is fixedly connected to the wire-reducing tube (2), and the top sealing plate (11) is also provided with a through hole (12) that matches the guide rod (7).

3. The one-way valve for underwater oil pumping operations according to claim 1, characterized in that: The valve plate (5) is provided with a sealing gasket (6) for sealing the bottom opening of the wire-reducing tube (2).

4. The one-way valve for underwater oil pumping operations according to claim 1, characterized in that: The reset elastic mechanism includes a spring (8) sleeved on the guide rod (7), and the spring (8) is located between the main tube (1) and the push nut (4).

5. The one-way valve for underwater oil pumping operations according to claim 4, characterized in that: The upper end of the guide rod (7) is provided with a guide rod wire segment (71), and a fixing nut (9) is provided on the guide rod wire segment (71). The spring (8) is located between the main tube (1) and the fixing nut (9).

6. The one-way valve for underwater oil pumping operations according to claim 1, characterized in that: The main pipe (1) and the wire reducer (2) and the wire reducer (2) and the quick connector (3) are all welded into a single sealed structure.

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