Anti-corrosion ball valve

Abstract

The utility model discloses an anti-corrosion ball valve which comprises a valve body, the valve body is in a spherical shell shape, a valve element is arranged in the valve body, the valve element is spherical, the outer surface of the valve element is attached to the inner surface of the valve body, the left end and the right end of the valve body are fixedly connected with valve pipes, the side ends of the valve pipes are fixedly connected with installation rings, and the installation rings are fixedly connected with the valve body. A sealing ring is arranged at the end, away from the valve body, of the mounting ring, and the valve body and the valve pipe are made of alloy steel. The pipe sleeve is connected with the valve pipe in a sleeved mode, and the end, close to the valve body, of the pipe sleeve is fixedly connected with the installation ring and the sealing ring through bolts. The valve body and the valve pipe form an integrated anti-corrosion shell structure, the inner valve element can be fully protected, the structure is stable and firm, flexibility and durability are achieved, and the anti-corrosion effect is good; a mounting structure is formed by the valve pipe, the mounting ring, the sealing ring, the pipe sleeve and the bolt, the structure is stable and tight, disassembly and assembly are convenient, and quick maintenance and replacement of the ball valve are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-corrosion of ball valves, in particular to an anti-corrosion ball valve. Background Art

[0002] After long-term use, the internal and external components of the existing ball valve are susceptible to corrosion to varying degrees, which is not conducive to the normal use of the ball valve; the installation structure of the ball valve is complex and difficult to disassemble and assemble, which is not conducive to the inspection and maintenance of the ball valve. The Chinese patent discloses a "compact ball valve" with the application number "CN202120940552.6", which includes a valve body, a valve seat, a ball, a valve stem, a valve cover, a handle and a packing gland. The handle includes a connecting part and a hand-holding part. A positioning plate is provided on the connecting part, and a matching hole is provided on the positioning plate. The packing gland is provided with two limiting holes, two countersunk holes and two positioning holes. The two limiting holes and the two countersunk holes are threadedly connected with hexagon socket bolts. The height of the upper end surface of the nut of the hexagon socket bolt threadedly connected to the countersunk hole is equal to or lower than the height of the upper end surface of the packing gland. The positioning plate is in conflict with the nut of the hexagon socket bolt threadedly connected to the limiting hole, so that the positioning plate stops rotating relative to the packing gland and the matching hole corresponds to one of the positioning holes. The positioning pin or the bolt is inserted into the corresponding matching hole and the positioning hole at the same time to fix the handle relative to the packing gland, thereby solving the problem that the rotation position of the existing ball valve handle is inaccurate and easy to rotate. However, corrosion of the ball valve will affect its normal use; the complex installation structure of the ball valve will increase the difficulty of disassembly and assembly of the ball valve, which is not conducive to the inspection and maintenance of the ball valve. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an anti-corrosion ball valve. The valve body and the valve pipe form an integrated anti-corrosion shell structure, which can fully protect the internal valve core, and the structure is stable and firm, flexible and durable, and has a good anti-corrosion effect. The valve pipe, mounting ring, sealing ring, pipe sleeve and bolts form an installation structure, which has a stable and tight structure and is easy to disassemble and assemble, which is conducive to the rapid maintenance and replacement of the ball valve.

[0004] The utility model also provides the above-mentioned corrosion-resistant ball valve, comprising: a valve body, the valve body is in the shape of a spherical shell, a valve core is arranged inside the valve body, the valve core is spherical, the outer surface of the valve core is in contact with the inner surface of the valve body, the left and right ends of the valve body are fixedly connected with valve pipes, the side end of the valve pipe is fixedly connected with a mounting ring, a sealing ring is arranged at one end of the mounting ring away from the valve body, the material of the valve body and the valve pipe is alloy steel; a pipe sleeve, the pipe sleeve is sleeved with the valve pipe, and the end of the pipe sleeve close to the valve body is fixedly connected with the mounting ring and the sealing ring by bolts.

[0005] According to the anti-corrosion ball valve described in the utility model, the upper end of the valve core is fixedly connected with a valve stem, which is convenient for installing a handle. The valve stem is sleeved with the valve body to make the structure compact. The upper end of the valve stem is fixedly connected with a handle, which is convenient for adjusting and conveying control of the ball valve.

[0006] According to the anti-corrosion ball valve described in the utility model, a hole is provided inside the valve core to facilitate the connection of the pipeline, and the hole is connected to the valve pipe, which is conducive to the stable connection of the pipeline.

[0007] According to the anti-corrosion ball valve of the utility model, a first threaded hole is arranged in the mounting ring to facilitate the installation of the bolts.

[0008] According to the anti-corrosion ball valve of the utility model, a second threaded hole is provided in the sealing ring to facilitate the installation of the bolt. The end of the sealing ring close to the valve body is in contact with the end of the mounting ring away from the valve body, making the structure compact and stable, which is conducive to stable sealing. The sealing ring is sleeved with the valve pipe, making the structure compact and stable, which is conducive to the stable installation of the sealing ring.

[0009] According to the anti-corrosion ball valve of the utility model, the end of the sleeve close to the valve body is provided with a third threaded hole to facilitate the installation of bolts. The end of the sleeve close to the valve body abuts against the end of the sealing ring away from the valve body, making the structure compact and stable, which is conducive to stable sealing.

[0010] According to the anti-corrosion ball valve of the utility model, the pipe sleeve is internally threadedly connected with a delivery pipe for convenient delivery. The end of the delivery pipe close to the valve body abuts against the end of the valve pipe away from the valve body, making the structure compact and facilitating the sealing of the delivery pipe.

[0011] Beneficial Effects

[0012] 1. Compared with the prior art, this anti-corrosion ball valve has an integrated anti-corrosion shell structure composed of a valve body and a valve pipe, which can fully protect the internal valve core, has a stable and firm structure, is flexible and durable, and has a good anti-corrosion effect;

[0013] 2. Compared with the prior art, the corrosion-resistant ball valve has an installation structure composed of a valve pipe, a mounting ring, a sealing ring, a pipe sleeve and bolts. The structure is stable and tight, and is easy to disassemble and assemble, which is conducive to the rapid maintenance and replacement of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the explosion structure of an anti-corrosion ball valve of the utility model;

[0016] Figure 2This is a schematic diagram of the structure of an anti-corrosion ball valve of the utility model;

[0017] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of an anti-corrosion ball valve of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of a transverse cross-sectional structure of an anti-corrosion ball valve.

[0019] Legend:

[0020] 1. Valve body; 2. Valve pipe; 3. Mounting ring; 4. Sealing ring; 5. Pipe sleeve; 6. Delivery pipe; 7. Second threaded hole; 8. First threaded hole; 9. Bolt; 10. Valve stem; 11. Handle; 12. Valve core; 13. Channel; 14. Third threaded hole. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4 The utility model embodiment is a corrosion-resistant ball valve, which includes: a valve body 1, the valve body 1 is in the shape of a spherical shell, as the basic appearance, the valve body 1 is provided with a valve core 12 inside to connect and cut off the pipeline, the valve core 12 is spherical, adapted to the valve body, the outer surface of the valve core 12 fits with the inner surface of the valve body 1 to form a compact and tight structure, the upper end of the valve core 12 is fixedly connected with a valve stem 10, a handle is installed to control the valve core, the valve stem 10 is sleeved with the valve body 1 to form a compact and tight structure, the upper end of the valve stem 10 is fixedly connected with a handle 11, which is rotated and adjusted to connect and cut off the pipeline, the left and right ends of the valve body 1 are fixedly connected with valve pipes 2, which are docked and installed with the pipe sleeve, and the inside of the valve core 12 A hole 13 is provided to form a connection channel, and the hole 13 is connected with the valve tube 2 to form a connection structure. The side end of the valve tube 2 is fixedly connected with a mounting ring 3 for docking and fixing. A first threaded hole 8 is provided in the mounting ring 3, and bolts are installed for docking and fixing. A sealing ring 4 is provided at one end of the mounting ring 3 away from the valve body 1 to seal and prevent leakage. A second threaded hole 8 is provided in the sealing ring 4, and bolts are installed for docking and fixing. One end of the sealing ring 4 close to the valve body 1 abuts against the end of the mounting ring 3 away from the valve body 1 to form a compact and tight structure. The sealing ring 3 is sleeved with the valve tube 2 to form a compact and tight structure. The material of the valve body 1 and the valve tube 2 is alloy steel, which has an anti-corrosion function and performs anti-corrosion protection;

[0023] The pipe sleeve 5 is sleeved with the valve tube 2 to form a compact and tight structure. A third threaded hole 14 is provided at one end of the pipe sleeve 5 close to the valve body 1, and bolts are installed to perform docking and fixing. One end of the pipe sleeve 5 close to the valve body 1 abuts against one end of the sealing ring 3 away from the valve body 1 to form a compact and tight structure. One end of the pipe sleeve 5 close to the valve body 1 is fixedly connected with the mounting ring 3 and the sealing ring 4 by bolts 9 to form a stable and firm structure. A delivery pipe 6 is connected to the inner thread of the pipe sleeve 5 for delivery. One end of the delivery pipe 6 close to the valve body 1 abuts against one end of the valve tube 2 away from the valve body 1 to form a compact and tight structure.

[0024] Working principle: The anti-corrosion ball valve is used to control the flow of the pipeline. The valve body 1 and the valve tube 2 of the anti-corrosion ball valve are made of alloy steel for corrosion protection. A spherical valve core 12 is installed in the valve body 1, and a hole 13 is provided in the valve core 12. The rotation of the valve core 12 is controlled by the handle 11 and the valve stem 10 to connect and disconnect the pipeline. When the pipeline is in the connected state, the hole 13 of the valve core 12 is connected to the valve tube 2; when the pipeline is in the disconnected state, the hole 13 of the valve core 12 and the valve tube 2 are not connected to each other.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An anti-corrosion ball valve, characterized in that: include: A valve body (1), wherein the valve body (1) is in the shape of a spherical shell, a valve core (12) is arranged inside the valve body (1), the valve core (12) is spherical, the outer surface of the valve core (12) is in contact with the inner surface of the valve body (1), the left and right ends of the valve body (1) are fixedly connected to valve pipes (2), the side ends of the valve pipe (2) are fixedly connected to mounting rings (3), and a sealing ring (4) is arranged at one end of the mounting ring (3) away from the valve body (1), and the material of the valve body (1) and the valve pipe (2) is alloy steel; A pipe sleeve (5) is sleeved on the valve pipe (2), and one end of the pipe sleeve (5) close to the valve body (1) is fixedly connected to the mounting ring (3) and the sealing ring (4) through bolts (9).

2. The anti-corrosion ball valve according to claim 1, characterized in that: The upper end of the valve core (12) is fixedly connected to a valve stem (10), the valve stem (10) is sleeved with the valve body (1), and the upper end of the valve stem (10) is fixedly connected to a handle (11).

3. The anti-corrosion ball valve according to claim 1, characterized in that: A hole (13) is provided inside the valve core (12), and the hole (13) is connected to the valve tube (2).

4. The anti-corrosion ball valve according to claim 1, characterized in that: A first threaded hole (8) is provided in the mounting ring (3).

5. The anti-corrosion ball valve according to claim 1, characterized in that: A second threaded hole (7) is provided in the sealing ring (4); an end of the sealing ring (4) close to the valve body (1) abuts against an end of the mounting ring (3) away from the valve body (1); and the sealing ring (4) is sleeved with the valve tube (2).

6. The anti-corrosion ball valve according to claim 1, characterized in that: A third threaded hole (14) is provided at one end of the pipe sleeve (5) close to the valve body (1), and the end of the pipe sleeve (5) close to the valve body (1) abuts against an end of the sealing ring (4) away from the valve body (1).

7. The anti-corrosion ball valve according to claim 1, characterized in that: The pipe sleeve (5) is internally threadedly connected to a delivery pipe (6), and one end of the delivery pipe (6) close to the valve body (1) is in contact with one end of the valve pipe (2) away from the valve body (1).

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