Adjustable ball valve

Abstract

The utility model relates to the technical field of valves, in particular to an adjustable ball valve which comprises a main valve body, a middle valve body, a nut, a hollow bolt and two movable valve bodies, four sliding rails distributed in the axial direction are arranged on the outer circle of each movable valve body, the two movable valve bodies are arranged at the two ends of the main valve body respectively, and the two movable valve bodies freely slide in the axial direction of the ball valve. An external thread is arranged at one end of the middle valve body, four sliding grooves are formed in an inner hole in the other end of the middle valve body, and the sliding grooves are used in cooperation with the four sliding rails on the outer circle of the movable valve body. When the adjustable ball valve is installed, the length of the adjustable ball valve can be adjusted to be small, the length of the valve is lengthened when the adjustable ball valve is placed between two connecting pipelines, and when the adjustable ball valve is detached, especially the ball valve connected in a threaded mode, compared with other ball valves, the adjustable ball valve only needs to be screwed, the valve is continuously shrunk when the adjustable ball valve is detached, and the length of the valve becomes small. And compared with other types of ball valves, the ball valve is very convenient to mount and dismount.

Description

Technical Field

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

[0002] Valves are key components in fluid delivery systems, used to control the direction, flow and pressure of the fluid. The selection of valves needs to consider factors such as fluid properties, working pressure, temperature, flow, etc. to ensure that the valves can work reliably and efficiently. Reasonable selection and maintenance of valves are essential for the safe operation of fluid systems.

[0003] Existing related technologies often have the following defects: when the pipelines are installed and arranged, they have been installed according to the construction requirements. Among them, the installation dimensions of rigidly connected pipes and valves are fixed. When the valves need to be replaced in the later stage, if valves with inconsistent lengths are used, the installation and use conditions are harsh or even unusable. A valve that can change its length can handle the problem well, especially valves with threaded connections.

[0004] Therefore, the utility model provides an adjustable ball valve. Utility Model Content

[0005] The utility model aims to solve the defect in the prior art that it is inconvenient to replace valves of inconsistent lengths, and proposes an adjustable ball valve.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable ball valve, comprising a main valve body, an intermediate valve body, a nut, a hollow bolt and two movable valve bodies, the outer circle of the movable valve body has four axially distributed slide rails, the two movable valve bodies are respectively arranged at the two ends of the main valve body, and the two movable valve bodies can slide arbitrarily along the axial direction of the ball valve, one end of the intermediate valve body has an external thread, and the inner hole of the other end of the intermediate valve body has four slide grooves, and the slide grooves and the four slide rails of the outer circle of the movable valve body cooperate with each other. The intermediate valve body is provided with two, which are distributed at both ends of the main valve body, both ends of the main valve body are threaded holes, and the threaded holes are connected to the threaded ends of the intermediate valve body. A spherical valve core that can turn on and off the medium is assembled in the middle of the main valve body, and a second sealing ring and a guide ring are used on both sides of the spherical valve core, a square hole is provided on the spherical valve core, a lever is embedded in the square hole, and a valve handle is installed on the other end of the lever, the valve handle is fastened by a nut, and the lever is fixed to the main valve body with a hollow bolt.

[0007] Preferably, the axial sliding of the movable valve body is sliding along the outer hole of the intermediate valve body, the circular sliding rail of the movable valve body is assembled in the sliding groove of the intermediate valve body, the sliding rail and the sliding groove cooperate to play the role of axial guidance and rotation limitation, and a wear-resistant ring and a first sealing ring are arranged between the movable valve body and the intermediate valve body.

[0008] Preferably, the two sides of the spherical valve core use a second sealing ring and a guiding ring, which can provide better support for the spherical surface of the spherical valve core while ensuring the sealing performance of the ball valve.

[0009] Preferably, a second silica gel ring is arranged between the nut and the hollow bolt.

[0010] Preferably, a first silica gel ring is arranged between the hollow bolt and the main valve body.

[0011] In summary:

[0012] In the present utility model, when the adjustable ball valve is installed, its length can be adjusted to be smaller, and then the valve length can be stretched when it is placed between two connecting pipes. When the valve is disassembled, especially for a ball valve connected by a threaded method, compared with other ball valves, as long as the adjustable ball valve is screwed, the valve will continuously contract and the length will become smaller during disassembly, and it can be disassembled when the thread connection is removed. The installation and disassembly are very convenient compared with other types of ball valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a sectional view of the present utility model.

[0015] Legend: 001, moving valve body; 002, intermediate valve body; 003, wear-resistant ring; 004, first sealing ring; 005, main valve body; 006, second sealing ring; 007, spherical valve core; 008, guiding ring; 009, valve handle; 010, first silica gel ring; 011, second silica gel ring; 012, lever; 013, nut; 014, hollow bolt. DETAILED DESCRIPTION OF THE INVENTION

[0016] Referring to Figure 1-2 as shown, the present utility model provides a technical solution: an adjustable ball valve, comprising a main valve body 005, an intermediate valve body 002, a nut 013, a hollow bolt 014 and two moving valve bodies 001.

[0017] The following specifically describes its overall specific settings and functions.

[0018] In this embodiment: There are four axially distributed slide rails on the outer circle of the moving valve body 001. Two moving valve bodies 001 are respectively arranged at both ends of the main valve body 005. The two moving valve bodies 001 can slide arbitrarily along the axial direction of the ball valve. One end of the intermediate valve body 002 has an external thread, and the inner hole at the other end of the intermediate valve body 002 has four chutes. The chutes and the four slide rails on the outer circle of the moving valve body 001 are used in cooperation. There are two intermediate valve bodies 002, which are distributed at both ends of the main valve body 005. Both ends of the main valve body 005 are threaded holes, and the threaded holes are connected to the threaded ends of the intermediate valve body 002. A spherical valve core 007 capable of switching the medium is assembled in the middle of the main valve body 005. The two sides of the spherical valve core 007 use a second sealing ring 006 and a guide ring 008. There is a square hole on the spherical valve core 007, and a lever 012 is embedded in the square hole. The other end of the lever 012 is installed with a valve handle 009. The valve handle 009 is fastened by a nut 013. The lever 012 is fixed to the main valve body 005 by a hollow bolt 014. When the ball valve is in use, when the valve handle 009 is rotated, the spherical valve core 007 rotates accordingly, so as to play the role of switching the medium.

[0019] Specifically, the axial sliding of the moving valve body 001 is along the inner hole of the intermediate valve body 002. The slide rails on the outer circle of the moving valve body 001 are assembled in the chutes of the intermediate valve body 002. The cooperation between the slide rails and the chutes plays the role of axial guidance and rotation limit. A wear-resistant ring 003 and a second sealing ring 006 are arranged between the moving valve body 001 and the intermediate valve body 002. The moving valve bodies 001 are respectively arranged at both ends of the ball valve. Each moving valve body 001 at each end is nested in the intermediate valve body 002. The moving valve body 001 slides along the inner wall of the intermediate valve body 002. A wear-resistant ring 003 and a first sealing ring 004 are inlaid between the moving valve body 001 and the intermediate valve body 002. The wear-resistant ring 003 can reduce the metal friction between the moving valve body 001 and the intermediate valve body 002. There is a slide rail on the outer circle of the moving valve body 001 and a chute in the inner hole of the intermediate valve body 002. The slide rail is embedded in the chute so that the moving valve body 001 can be axially guided and prevented from rotating when sliding. The two sides of the spherical valve core 007 use a second sealing ring 006 and a guide ring 008. While ensuring the sealing performance of the ball valve, the spherical surface of the spherical valve core 007 has better support. Seals and additional guide rings 008 are installed on both sides of the spherical valve core 007. When the intermediate valve body 002 is screwed into the main valve body 005, the seals and guide rings 008 are tightly pressed on the spherical surface of the spherical valve core 007. The guide ring 008 can make the force on the spherical valve core 007 uniform. A second silica gel ring 011 is arranged between the nut 013 and the hollow bolt 014, and a first silica gel ring 010 is arranged between the hollow bolt 014 and the main valve body 005. The setting of the first silica gel ring 010 improves the tightness of the connection between the hollow bolt 014 and the main valve body 005, and the setting of the second silica gel ring 011 improves the tightness of the connection between the nut 013 and the hollow bolt 014.

[0020] Working principle: Since the length of the adjustable ball valve can be adjusted arbitrarily within the set range, when the installation dimensions between two pipelines are inconsistent, the same valve can be installed and used. When installing the valve, compared with the fixed length of other valves, the length of the adjustable ball valve can be adjusted smaller during installation and then stretched when placed between the two connecting pipelines. When disassembling the valve, especially for a ball valve connected by a threaded method, compared with other ball valves, as long as the adjustable ball valve is screwed, the valve will continuously contract and the length will become smaller during disassembly, and the disassembly can be completed when the thread is disconnected. The installation and disassembly are very convenient compared with other types of ball valves.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

Claims

1. An adjustable ball valve, comprising a main valve body (005), an intermediate valve body (002), a nut (013), a hollow bolt (014) and two movable valve bodies (001), characterized in that: The outer circle of the movable valve body (001) has four axially distributed slide rails, and two of the movable valve bodies (001) are respectively arranged at the two ends of the main valve body (005). The two movable valve bodies (001) can slide arbitrarily along the axial direction of the ball valve. One end of the intermediate valve body (002) has an external thread, and the inner hole of the other end of the intermediate valve body (002) has four slide grooves. The slide grooves and the four slide rails of the outer circle of the movable valve body (001) are used in conjunction with each other. Two intermediate valve bodies (002) are arranged, which are distributed at the two ends of the main valve body (005). Both ends of the main valve body (005) have threaded holes. The threaded hole is connected to the threaded end of the intermediate valve body (002); a spherical valve core (007) capable of passing through and passing through a medium is installed in the middle of the main valve body (005); a second sealing ring (006) and a guide ring (008) are used on both sides of the spherical valve core (007); a square hole is provided on the spherical valve core (007); a lever (012) is embedded in the square hole; a valve handle (009) is installed at the other end of the lever (012); the valve handle (009) is fastened by a nut (013); and the lever (012) is fixed to the main valve body (005) by a hollow bolt (014).

2. The adjustable ball valve according to claim 1, characterized in that: The movable valve body (001) slides axially along the inner hole of the intermediate valve body (002); the outer circular slide rail of the movable valve body (001) is assembled in the slide groove of the intermediate valve body (002); the slide rail and the slide groove cooperate to play the role of axial guidance and rotation limitation; a wear-resistant ring (003) and a first sealing ring (004) are arranged between the movable valve body (001) and the intermediate valve body (002).

3. The adjustable ball valve according to claim 1, characterized in that: The second sealing ring (006) and the guide ring (008) are used on both sides of the ball valve core (007), which ensures the sealing performance of the ball valve and provides better support for the spherical surface of the ball valve core (007).

4. The adjustable ball valve according to claim 1, characterized in that: A second silicone ring (011) is provided between the nut (013) and the hollow bolt (014).

5. The adjustable ball valve according to claim 1, characterized in that: A first silicone ring (010) is provided between the hollow bolt (014) and the main valve body (005).

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