Threaded plastic ball valve convenient to disassemble

Abstract

The utility model discloses a thread type plastic ball valve convenient to disassemble, which comprises an upper valve body and a lower valve body, the upper valve body and the lower valve body are connected through a fixing bolt, one side of the upper valve body and one side of the lower valve body are provided with a right connecting sleeve, and the other side of the upper valve body and the other side of the lower valve body are provided with a left connecting sleeve. A ball body is arranged in the upper valve body and the lower valve body, an upper inner liner is arranged in the upper valve body, a lower inner liner is arranged in the lower valve body, and the inner sides of the lower inner liner and the upper inner liner are in contact connection with the outer side of the ball body. According to the thread type plastic ball valve convenient to disassemble, the upper valve body and the lower valve body are arranged, the upper valve body and the lower valve body are fixed through the fixing bolt and are extruded and sealed through the sealing gasket, in this way, the valve body of the ball valve can be quickly disassembled, the normal working state of the valve body can be guaranteed, internal parts of the valve body can be conveniently replaced, and the cost is reduced. And the long-time normal use state of the plastic ball valve is ensured.

Description

Technical Field

[0001] This utility model relates to the field of plastic ball valve technology, specifically a threaded plastic ball valve that is easy to disassemble. Background Technology

[0002] A plastic ball valve is a type of valve made from plastic and is suitable for shutting off flow in the transportation of corrosive media. All parts are typically assembled from injection-molded RPP or PVDF components. The valve opens and closes by rotating a ball, thus cutting off or connecting the medium in the pipeline. It can also be used for fluid regulation and control.

[0003] Plastic ball valves are commonly used, but most of them have an integrated valve body. After prolonged use, plastic ball valves are prone to wear and tear, which can compromise their sealing performance. Furthermore, the integrated design makes disassembly and replacement of internal parts inconvenient. Therefore, we propose a threaded plastic ball valve that is easy to disassemble to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a threaded plastic ball valve that is easy to disassemble, in order to solve the problem mentioned in the background art that the use of current plastic ball valves is inconvenient for disassembling and assembling internal parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a threaded plastic ball valve that is easy to disassemble, comprising an upper valve body and a lower valve body, wherein the upper valve body and the lower valve body are connected by fixing bolts, a right connecting sleeve is installed on one side of the upper valve body and the lower valve body, and a left connecting sleeve is installed on the other side of the upper valve body and the lower valve body, wherein a ball is provided inside the upper valve body, an upper inner liner is provided inside the upper valve body, and a lower inner liner is provided inside the lower valve body, wherein the inner sides of the lower inner liner and the upper inner liner are in contact with the outer side of the ball, and sealing elements are provided at the opening positions between the ball and the upper valve body and the lower valve body on both sides, wherein a valve stem is connected through the upper valve body, the lower end of the valve stem is connected to the ball, and the upper end of the valve stem is connected to a rotating handle.

[0006] Preferably, a sealing gasket is provided at the connection between the upper valve body and the lower valve body, and the upper valve body and the lower valve body are fixed together by fixing bolts, forming a sealed connection structure with the sealing gasket.

[0007] Preferably, both ends of the upper valve body and the lower valve body are threadedly connected to the right connecting sleeve and the left connecting sleeve, and the right connecting sleeve and the left connecting sleeve are both sleeved on the outside of both ends of the upper valve body and the lower valve body.

[0008] Preferably, the middle outer sides of the right connecting sleeve and the left connecting sleeve are hexagonal prism structures, and both ends of the inner sides of the right connecting sleeve and the left connecting sleeve are threaded, with a protruding structure in the middle position, and the inner diameter of the protruding structure is equal to the inner diameter of both ends of the upper valve body and the lower valve body.

[0009] Preferably, the upper inner liner and the upper valve body, and the lower inner liner and the lower valve body are all embedded and detachable connections. The outer dimensions of the upper inner liner and the lower inner liner are adapted to the inner dimensions of the upper valve body and the lower valve body, respectively, and the inner dimensions of the upper inner liner and the lower inner liner are adapted to the outer dimensions of the sphere.

[0010] Preferably, the lower end of the valve stem is embedded in the ball via a quadrangular prism, the valve stem passes through the upper inner liner, and a sealing ring is fitted on the valve stem, which is then sealed to the upper valve body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The easily disassembled threaded plastic ball valve is provided with an upper valve body and a lower valve body, and the upper valve body and the lower valve body are fixed by fixing bolts and sealed by sealing gaskets. This allows for quick disassembly of the ball valve body, ensures normal working condition of the valve body, facilitates replacement of internal parts of the valve body, and ensures normal use of the plastic ball valve for a long time.

[0013] (2) The upper valve body and the lower valve body are provided with threaded parts at both ends, which can further strengthen the connection between the upper valve body and the lower valve body, ensure the stable working state of the valve body, and facilitate the disassembly and assembly of the valve body.

[0014] (3) A lower inner gasket and an upper inner gasket are provided inside the upper valve body and the lower valve body. The two are in direct contact with the ball, which avoids the ball from contacting and wearing each other with the upper and lower valve bodies. At the same time, the lower inner gasket and the upper inner gasket can be disassembled and replaced to ensure the long-term use of the plastic ball valve. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the main cross-section of the present invention;

[0018] Figure 4 This is a side sectional view of the present invention.

[0019] Figure 5 This is a schematic diagram of the exploded cross-section of the upper and lower valve bodies of this utility model.

[0020] Figure 6 This is a schematic diagram of the main cross-section of the present invention.

[0021] In the diagram: 1. Upper valve body; 2. Lower valve body; 3. Right connecting sleeve; 4. Left connecting sleeve; 5. Rotary handle; 6. Valve stem; 7. Ball; 8. Lower inner liner; 9. Upper inner liner; 10. Seal; 11. Fixing bolt. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a threaded plastic ball valve that is easy to disassemble, including an upper valve body 1 and a lower valve body 2, which are connected by a fixing bolt 11.

[0024] Furthermore, a sealing gasket is provided at the connection between the upper valve body 1 and the lower valve body 2. The upper valve body 1 and the lower valve body 2 are fixed together by the fixing bolts 11, which together with the sealing gasket form a sealed connection structure to ensure the normal working state of the valve body. It also facilitates the quick disassembly and assembly of the upper valve body 1 and the lower valve body 2 by fixing the bolts 11.

[0025] A right connecting sleeve 3 is installed on one side of the upper valve body 1 and the lower valve body 2, and a left connecting sleeve 4 is installed on the other side of the upper valve body 1 and the lower valve body 2.

[0026] Furthermore, both ends of the upper valve body 1 and the lower valve body 2 are threadedly connected to the right connecting sleeve 3 and the left connecting sleeve 4, and the right connecting sleeve 3 and the left connecting sleeve 4 are both sleeved on the outer sides of both ends of the upper valve body 1 and the lower valve body 2, which facilitates the disassembly and assembly of the right connecting sleeve 3 and the left connecting sleeve 4, and also strengthens the connection state of the upper valve body 1 and the lower valve body 2, ensuring the stable operation of the separate parts.

[0027] Furthermore, the outer middle part of the right connecting sleeve 3 and the left connecting sleeve 4 is a hexagonal prism structure, which facilitates the operation of the right connecting sleeve 3 and the left connecting sleeve 4. Both ends of the inner side of the right connecting sleeve 3 and the left connecting sleeve 4 are threaded, which facilitates the connection with the valve body and external pipes. A protruding structure is provided in the middle position, which can locate the connection with the valve body. The inner diameter of the protruding structure is equal to the inner diameter of the upper valve body 1 and the lower valve body 2, ensuring that the normal flow of liquid is not affected by obstruction.

[0028] The upper valve body 1 and the lower valve body 2 are provided with a ball 7 inside. The upper valve body 1 is provided with an upper inner liner 9 inside. The lower valve body 2 is provided with a lower inner liner 8 inside. The inner sides of the lower inner liner 8 and the upper inner liner 9 are in contact with the outer side of the ball 7. The two sides of the ball 7 are provided with a sealing element 10 at the opening position between the upper valve body 1 and the lower valve body 2.

[0029] Furthermore, the upper inner gasket 9 and the upper valve body 1, and the lower inner gasket 8 and the lower valve body 2 are both embedded and detachable connections, facilitating the disassembly and replacement of the upper inner gasket 9 and the lower inner gasket 8 in reverse. The outer dimensions of the upper inner gasket 9 and the lower inner gasket 8 are adapted to the inner dimensions of the upper valve body 1 and the lower valve body 2, respectively, and the inner dimensions of the upper inner gasket 9 and the lower inner gasket 8 are adapted to the outer dimensions of the ball 7, ensuring a tight connection between the upper inner gasket 9 and the lower inner gasket 8 and the upper valve body 1, the lower valve body 2, and the ball 7, thus preventing leakage.

[0030] A valve stem 6 is connected through the upper valve body 1. A ball 7 is connected to the lower end of the valve stem 6, and a rotating handle 5 is connected to the upper end of the valve stem 6.

[0031] Furthermore, the lower end of the valve stem 6 is embedded in the ball 7 via a quadrangular prism, which facilitates the valve stem 6 to stably control the rotation of the ball 7. The valve stem 6 passes through the upper inner gasket 9, and a sealing ring is fitted on the valve stem 6. The valve stem 6 is sealed to the upper valve body 1 through the sealing ring to prevent leakage at the connection between the valve stem 6 and the upper valve body 1.

[0032] Working principle: When using this easy-to-disassemble threaded plastic ball valve, the first step is to assemble the plastic ball valve. First, embed the upper inner gasket 9 and the lower inner gasket 8 into the upper valve body 1 and the lower valve body 2 respectively. Then, the valve stem 6 passes through the upper inner gasket 9 and the upper valve body 1 from the inside. The lower end of the valve stem 6 is provided with a protruding structure at the connection between it and the ball 7, which can limit the position of the valve stem 6 passing through the upper inner gasket 9 and the upper valve body 1.

[0033] Then, the ball 7 is installed into the upper valve body 1, and the ball 7 is connected to the four-sided prism at the bottom of the valve stem 6. Then, the sealing element 10 is installed on both sides of the ball 7. Finally, the lower valve body 2 is connected to the upper valve body 1 and fixed with the fixing bolt 11. At the same time, the sealing element 10 is located at the opening positions on both sides of the upper valve body 1 and the lower valve body 2 to ensure the sealing connection between the opening positions and the ball 7.

[0034] After the upper valve body 1 and the lower valve body 2 are fixed together, the right connecting sleeve 3 and the left connecting sleeve 4 are installed at both ends to ensure the stable working state of the upper valve body 1 and the lower valve body 2. Finally, the rotating handle 5 is installed at the top of the valve stem 6 so that the plastic ball valve can be used normally.

[0035] When using this plastic ball valve, the right connecting sleeve 3 and the left connecting sleeve 4 are connected to the pipe through the threaded connection of the outer ends of the pipe. When the right connecting sleeve 3 and the left connecting sleeve 4 are connected to the pipe through the threaded connection, it is necessary to ensure that the connection state between the right connecting sleeve 3 and the left connecting sleeve 4 and the valve body is stable and unchanged, so as to avoid leakage of the valve body.

[0036] Once the plastic ball valve is installed, the valve stem 6 is rotated by rotating the handle 5, which in turn causes the ball 7 to rotate inside the lower inner liner 8 and the upper inner liner 9 in the upper valve body 1 and the lower valve body 2. The port on the ball 7 connects with the ports on both sides of the upper valve body 1 and the lower valve body 2, allowing the liquid in the pipeline to flow normally. Otherwise, the flow is closed.

[0037] If the plastic ball valve does not work well after a long period of use, it can be removed. First, remove the right connecting sleeve 3 and the left connecting sleeve 4. Then, use the fixing bolt 11 to separate the upper valve body 1 and the lower valve body 2. Then, the ball 7, lower inner liner 8, upper inner liner 9 and seal 10 inside the valve body can be replaced directly. Finally, reassemble to ensure the normal working condition of the plastic ball valve.

[0038] The above describes the usage process of the plastic ball valve. Any content not described in detail in this manual is existing technology known to those skilled in the art.

[0039] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A threaded plastic ball valve that is easy to disassemble, comprising an upper valve body (1) and a lower valve body (2), characterized in that: The upper valve body (1) and the lower valve body (2) are connected by fixing bolts (11). A right connecting sleeve (3) is installed on one side of the upper valve body (1) and the lower valve body (2), and a left connecting sleeve (4) is installed on the other side of the upper valve body (1) and the lower valve body (2). A ball (7) is provided inside the upper valve body (1) and the lower valve body (2). An upper inner liner (9) is provided inside the upper valve body (1), and a lower inner liner (8) is provided inside the lower valve body (2). The inner sides of the lower inner liner (8) and the upper inner liner (9) are in contact with the outer side of the ball (7). A sealing element (10) is provided at the opening position between the ball (7) and the upper valve body (1) and the lower valve body (2). A valve stem (6) is connected through the upper valve body (1). The lower end of the valve stem (6) is connected to the ball (7), and the upper end of the valve stem (6) is connected to a rotating handle (5).

2. The threaded plastic ball valve for easy disassembly according to claim 1, characterized in that: A sealing gasket is provided at the connection between the upper valve body (1) and the lower valve body (2). The upper valve body (1) and the lower valve body (2) are fixed by fixing bolts (11) and together with the sealing gasket, they form a sealed connection structure.

3. The threaded plastic ball valve for easy disassembly according to claim 1, characterized in that: Both ends of the upper valve body (1) and the lower valve body (2) are threadedly connected to the right connecting sleeve (3) and the left connecting sleeve (4), and the right connecting sleeve (3) and the left connecting sleeve (4) are both sleeved on the outside of both ends of the upper valve body (1) and the lower valve body (2).

4. A threaded plastic ball valve for easy disassembly according to claim 3, characterized in that: The right connecting sleeve (3) and the left connecting sleeve (4) have a hexagonal prism structure on their middle outer sides, and both ends of the inner sides of the right connecting sleeve (3) and the left connecting sleeve (4) are threaded. A protruding structure is provided in the middle position, and the inner diameter of the protruding structure is equal to the inner diameter of both ends of the upper valve body (1) and the lower valve body (2).

5. A threaded plastic ball valve for easy disassembly according to claim 1, characterized in that: The upper inner liner (9) and the upper valve body (1) and the lower inner liner (8) and the lower valve body (2) are both embedded and detachable connections. The outer dimensions of the upper inner liner (9) and the lower inner liner (8) are adapted to the inner dimensions of the upper valve body (1) and the lower valve body (2), respectively. The inner dimensions of the upper inner liner (9) and the lower inner liner (8) are adapted to the outer dimensions of the ball (7).

6. A threaded plastic ball valve for easy disassembly according to claim 1, characterized in that: The lower end of the valve stem (6) is embedded in the ball (7) through a quadrangular prism. The valve stem (6) passes through the upper inner liner (9). A sealing ring is fitted on the valve stem (6) and is sealed to the upper valve body (1) through the sealing ring.

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