Quickly-assembled plug valve body assembly

Abstract

The utility model relates to the technical field of quick-assembly plug valves, and discloses a quick-assembly plug valve body assembly which comprises a valve body, connecting flanges are arranged on the two side walls of the valve body, a sealing gasket is arranged in the middle of the end, away from the valve body, of each connecting flange, a sealing ring is arranged at the upper end of the valve body, an upper end cover is arranged at the upper end of the sealing ring, and a sealing ring is arranged at the lower end of the upper end cover. A valve rod is arranged in the middle of the upper end cover, an adjusting handle is arranged on the periphery of the upper end of the valve rod, a first packing sealing gasket is arranged on the periphery of the valve rod located at the lower end of the upper end cover, a first packing layer is arranged at the lower end of the first packing sealing gasket, and a second packing sealing gasket is arranged at the lower end of the first packing layer. By arranging the first packing layer, the second packing layer, the first packing sealing gasket, the second packing sealing gasket and the third packing sealing gasket, the sealing performance among the upper end cover, the valve rod, the inner wall of the valve body and the plug cock can be guaranteed, and the stability and reliability of the valve are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of quick-install plug valves, specifically quick-install plug valve body components. Background Technology

[0002] A plug valve is a rotary valve with a shut-off element or plunger. It is opened or closed by rotating the plug 90 degrees to open or close the passage on the plug with the passage on the valve body. The plug can be cylindrical or conical. In cylindrical plugs, the passage is generally rectangular, while in conical plugs, the passage is trapezoidal. These shapes make plug valves lightweight and ideal for cutting off and connecting media, as well as for diverting flow. However, depending on the application and the erosion resistance of the sealing surface, they can sometimes be used for throttling.

[0003] The plug valve can be quickly installed and removed from the pipe through the connecting flanges on both sides. However, the upper cover of the existing quick-install plug valve is generally sealed with a single layer of packing, which has poor durability and sealing performance, and the packing is inconvenient to replace. Therefore, a quick-install plug valve body assembly is proposed here. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a quick-installation plug valve body assembly, which effectively solves the problems existing in the current quick-installation plug valve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation plug valve body assembly, including a valve body, with connecting flanges on both side walls of the valve body, a sealing gasket at the center of the end of the connecting flange furthest from the valve body, a sealing ring at the upper end of the valve body, an upper end cap at the upper end of the sealing ring, a valve stem at the center of the upper end cap, an adjusting handle at the upper periphery of the valve stem, a first packing gasket at the lower periphery of the valve stem located below the upper end cap, a first packing layer at the lower end of the first packing gasket, a second packing gasket at the lower end of the first packing layer, a second packing layer at the lower end of the second packing gasket, a third packing gasket at the lower end of the second packing layer, a plug at the lower periphery of the valve stem, and an adjusting screw at the center of the lower end of the valve body.

[0006] Preferably, the connecting flange is formed on both side walls of the valve body, and the sealing gasket is connected to the connecting flange through a groove. The valve body can be connected to other pipes by bolts through the connecting flange, and the sealing gasket can ensure the sealing at the connection between the connecting flange and other pipes.

[0007] Preferably, the upper end cover is bolted to the upper end of the valve body, and the sealing ring is pressed between the lower end of the upper end cover and the upper end of the valve body. The sealing ring can improve the sealing performance between the upper end cover and the valve body.

[0008] Preferably, the valve stem is connected to the inner wall of the upper end cover via a bearing, the adjusting handle is connected to the upper end of the valve stem via a key, the first packing layer and the second packing layer fill the periphery of the valve stem between the upper end cover and the valve body, the first packing gasket is pressed between the lower end of the upper end cover and the upper end of the first packing layer, and the first packing layer, the second packing layer, the first packing gasket, the second packing gasket and the third packing gasket can ensure the sealing between the upper end cover, the valve stem, the inner wall of the valve body and the plug.

[0009] Preferably, the second packing gasket is pressed between the lower end of the first packing layer and the upper end of the second packing layer, and the third packing gasket is pressed between the lower end of the second packing layer and the upper end of the valve.

[0010] Preferably, the lower end of the valve stem is connected to the upper end of the plug by a key, the plug is rotatably connected to the inner wall of the valve body, and the adjusting screw is threaded to the middle of the lower end of the valve body. By rotating the plug, the on / off state inside the valve body can be adjusted to open and close the valve.

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

[0012] In this quick-release plug valve body assembly, by setting a first packing layer, a second packing layer, a first packing gasket, a second packing gasket, and a third packing gasket, the sealing between the upper end cover, valve stem, inner wall of the valve body, and plug can be guaranteed, ensuring the stability and reliability of the valve. The upper end cover and valve body can be easily disassembled and assembled by bolts, which allows for convenient replacement of the first packing layer, second packing layer, first packing gasket, second packing gasket, and third packing gasket. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0017] In the diagram: 1. Valve body; 2. Connecting flange; 3. Sealing gasket; 4. Sealing ring; 5. Upper end cap; 6. Valve stem; 7. Adjusting handle; 8. First packing gasket; 9. First packing layer; 10. Second packing gasket; 11. Second packing layer; 12. Third packing gasket; 13. Plug; 14. Adjusting screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In this embodiment, by Figure 1-3 The present invention includes a valve body 1, with connecting flanges 2 on both side walls of the valve body 1. A sealing gasket 3 is provided at the middle of the end of the connecting flange 2 away from the valve body 1. A sealing ring 4 is provided at the upper end of the valve body 1. An upper end cover 5 is provided at the upper end of the sealing ring 4. A valve stem 6 is provided at the middle of the upper end cover 5. An adjusting handle 7 is provided on the outer periphery of the upper end of the valve stem 6. A first packing gasket 8 is provided on the outer periphery of the valve stem 6 located at the lower end of the upper end cover 5. A first packing layer 9 is provided at the lower end of the first packing gasket 8. A second packing gasket 10 is provided at the lower end of the first packing layer 9. A second packing layer 11 is provided at the lower end of the second packing gasket 10. A third packing gasket 12 is provided at the lower end of the second packing layer 11. A stopcock 13 is provided on the outer periphery of the lower end of the valve stem 6. An adjusting screw 14 is provided at the middle of the lower end of the valve body 1.

[0020] The connecting flange 2 is formed on both sides of the valve body 1. The sealing gasket 3 is connected to the connecting flange 2 through a groove. The valve body 1 can be connected to other pipes by bolts through the connecting flange 2. The sealing gasket 3 can ensure the sealing of the connection between the connecting flange 2 and other pipes. The upper end cover 5 is connected to the upper end of the valve body 1 by bolts. The sealing ring 4 is pressed between the lower end of the upper end cover 5 and the upper end of the valve body 1. The sealing ring 4 can improve the sealing between the upper end cover 5 and the valve body 1.

[0021] The valve stem 6 is connected to the inner wall of the upper cover 5 via a bearing, and the adjusting handle 7 is connected to the upper end of the valve stem 6 via a key. The first packing layer 9 and the second packing layer 11 fill the outer periphery of the valve stem 6 between the upper cover 5 and the valve body 1. The first packing gasket 8 is pressed between the lower end of the upper cover 5 and the upper end of the first packing layer 9. The second packing gasket 10 is pressed between the lower end of the first packing layer 9 and the upper end of the second packing layer 11. The third packing gasket 12 is pressed between the lower end of the second packing layer 11 and the upper end of the stopcock 13. The first packing layer 9, the second packing layer 11, the first packing gasket 8, the second packing gasket 10, and the third packing gasket 12 can ensure the sealing between the upper cover 5, the valve stem 6, the inner wall of the valve body 1, and the stopcock 13.

[0022] The lower end of the valve stem 6 is connected to the upper end of the plug 13 by a key. The plug 13 is rotatably connected to the inner wall of the valve body 1. The adjusting screw 14 is threadedly connected to the middle of the lower end of the valve body 1. The opening and closing of the valve body 1 can be adjusted by rotating the plug 13.

[0023] Working principle: The valve body 1 can be connected to other pipes via bolts and connecting flange 2. The sealing gasket 3 ensures the sealing of the connection between connecting flange 2 and other pipes. The upper cover 5 and valve body 1 can be easily disassembled and assembled via bolts, which allows for easy replacement of the first packing layer 9, the second packing layer 11, the first packing gasket 8, the second packing gasket 10, and the third packing gasket 12. The first packing layer 9, the second packing layer 11, the first packing gasket 8, the second packing gasket 10, and the third packing gasket 12 ensure the sealing between the upper cover 5, valve stem 6, the inner wall of valve body 1, and the stopcock 13. The sealing ring 4 improves the sealing between the upper cover 5 and valve body 1. By adjusting the handle 7 and rotating the valve stem 6, the stopcock 13 can be rotated, making the channel on the stopcock 13 connect or separate from the channel on the valve body 1, thereby adjusting the flow inside the valve body 1 to open and close the valve.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fast-fit stopcock valve body assembly comprising a valve body (1) characterised in that: The valve body (1) is provided with connecting flanges (2) on both sides. A sealing gasket (3) is provided at the middle of the end of the connecting flange (2) away from the valve body (1). A sealing ring (4) is provided at the upper end of the valve body (1). An upper end cover (5) is provided at the upper end of the sealing ring (4). A valve stem (6) is provided at the middle of the upper end cover (5). An adjusting handle (7) is provided at the outer periphery of the upper end of the valve stem (6). A first packing gasket (8) is provided at the outer periphery of the valve stem (6) located at the lower end of the upper end cover (5). A first packing layer (9) is provided at the lower end of the first packing gasket (8). A second packing gasket (10) is provided at the lower end of the first packing layer (9). A second packing layer (11) is provided at the lower end of the second packing gasket (10). A third packing gasket (12) is provided at the lower end of the second packing layer (11). A stopcock (13) is provided at the outer periphery of the lower end of the valve stem (6). An adjusting screw (14) is provided at the middle of the lower end of the valve body (1).

2. The quick pack faucet valve body assembly of claim 1, wherein: The connecting flange (2) is formed on both sides of the valve body (1), and the sealing gasket (3) is connected to the connecting flange (2) through a groove.

3. The fast pack globe valve body assembly of claim 1, wherein: The upper end cap (5) is connected to the upper end of the valve body (1) by bolts, and the sealing ring (4) is pressed between the lower end of the upper end cap (5) and the upper end of the valve body (1).

4. The fast-pack faucet valve body assembly of claim 1, wherein: The valve stem (6) is connected to the inner wall of the upper end cover (5) by a bearing, the adjusting handle (7) is connected to the upper end of the valve stem (6) by a key, the first packing layer (9) and the second packing layer (11) are filled around the valve stem (6) between the upper end cover (5) and the valve body (1), and the first packing gasket (8) is pressed between the lower end of the upper end cover (5) and the upper end of the first packing layer (9).

5. The fast-pack faucet valve body assembly of claim 1, wherein: The second packing gasket (10) is pressed between the lower end of the first packing layer (9) and the upper end of the second packing layer (11), and the third packing gasket (12) is pressed between the lower end of the second packing layer (11) and the upper end of the stopcock (13).

6. The fast-pack faucet valve body assembly of claim 1, wherein: The lower end of the valve stem (6) is connected to the upper end of the stopcock (13) by a key, the stopcock (13) is rotatably connected to the inner wall of the valve body (1), and the adjusting screw (14) is connected to the middle of the lower end of the valve body (1) by a thread.

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