Welded electric cut-off valve

Abstract

The utility model relates to valve technical field, and disclose a kind of welded electric cut-off valve, including valve body, the left end of valve body is provided with water inlet, the right end of valve body is provided with water outlet, the top of valve body is connected with bonnet by fastening bolt, the inside of valve body is provided with valve core, the top of valve core is installed with valve rod, the top middle of bonnet is provided with packing, the top of packing is provided with packing presser plate, the top of packing presser plate is provided with valve rod nut, the top of valve rod passes through bonnet, packing, packing presser plate and valve rod nut and is connected with hand wheel.The utility model is provided with shear block, blowoff pipeline, blowoff pump and valve, utilizes the mutual cooperation between them, thereby can realize valve core closing, through the shear force formed by shear block and valve seat on valve body, remove adhering impurity, and through starting blowoff pump, impurity is discharged from blowoff pipeline, prevent the blockage caused by impurity adhesion deposition.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a welded electric shut-off valve. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be classified as shut-off valves, check valves, regulating valves, etc. Welded electric shut-off valves are a type of valve.

[0003] Existing welded electric gate valves cannot effectively clean and discharge impurities adhering to the side wall of the valve seat during use, leading to impurity accumulation and easy blockage. Therefore, there is an urgent need for a welded electric gate valve to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a welded electric shut-off valve to solve the problem mentioned in the background art that the existing welded electric shut-off valve cannot clean and discharge the impurities attached to the side wall of the valve seat during use, resulting in the accumulation of impurities and easy blockage.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A welded electric shut-off valve includes a valve body, an inlet at the left end of the valve body, an outlet at the right end of the valve body, a valve cover connected to the top of the valve body by fastening bolts, a valve core inside the valve body, a valve stem mounted on the top of the valve core, packing material in the middle of the top of the valve cover, a packing pressure plate on the top of the packing material, a valve stem nut directly above the packing pressure plate, a handwheel connected to the top of the valve stem passing through the valve cover, packing material, packing pressure plate, and valve stem nut, a sewage pipe at the bottom of the valve body, a sewage pump mounted on the sewage pipe, and a shearing block connected to the bottom of the valve core.

[0007] As a preferred embodiment of this utility model, a valve is installed on the sewage pipe, and the valve is located directly above the sewage pump.

[0008] As a preferred embodiment of this invention, the shearing block is circular in shape.

[0009] As a preferred embodiment of this utility model, the sewage pipe is located near the water inlet of the valve body.

[0010] As a preferred embodiment of this utility model, the number of fastening bolts is set to six, and the six fastening bolts are arranged in a ring with equal spacing about the valve cover.

[0011] As a preferred embodiment of this utility model, one side of the valve stem nut is connected to one side wall of the valve cover via a connector.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes a shearing block, a sewage pipe, a sewage pump, and a valve. By coordinating their functions, when the valve core is closed, the shearing force formed by the shearing block and the valve seat on the valve body removes attached impurities. The sewage pump then discharges the impurities from the sewage pipe, preventing blockages caused by impurity buildup. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This is a cross-sectional view of the shear block of this utility model.

[0018] In the diagram: 1. Valve body; 2. Handwheel; 3. Valve stem; 4. Valve stem nut; 5. Valve core; 6. Valve cover; 7. Packing; 8. Packing pressure plate; 9. Sewage pipe; 10. Valve; 11. Shear block; 12. Inlet; 13. Outlet; 14. Sewage pump. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0020] Please see Figure 1-3A welded electric shut-off valve includes a valve body 1, an inlet 12 at the left end of the valve body 1, an outlet 13 at the right end of the valve body 1, a valve cover 6 connected to the top of the valve body 1 by fastening bolts, a valve core 5 inside the valve body 1, a valve stem 3 mounted on the top of the valve core 5, a packing 7 in the middle of the top of the valve cover 6, a packing pressure plate 8 on the top of the packing 7, a valve stem nut 4 directly above the packing pressure plate 8, a handwheel 2 passing through the valve cover 6, the packing 7, the packing pressure plate 8 and the valve stem nut 4 at the top of the valve stem 3, and a sewage pipe 9 at the bottom of the valve body 1, a sewage pump 14 mounted on the sewage pipe 9, and a shearing block 11 connected to the bottom of the valve core 5.

[0021] As a preferred technical solution of this utility model, a valve 10 is installed on the sewage pipe 9, and the valve 10 is located directly above the sewage pump 14.

[0022] As a preferred technical solution of this utility model, the shearing block 11 is circular in shape.

[0023] As a preferred technical solution of this utility model, the sewage pipe 9 is close to the water inlet 12 of the valve body 1.

[0024] As a preferred technical solution of this utility model, the number of fastening bolts is set to six, and the six fastening bolts are arranged in a ring with equal spacing about the valve cover 6.

[0025] As a preferred technical solution of this utility model, one side of the valve stem nut 4 is connected to one side wall of the valve cover 6 through a connector.

[0026] The working principle and usage process of this utility model are as follows: Firstly, during operation, fluid enters through the inlet 12 of the valve body 1. The rotation of the handwheel 2 drives the valve stem 3 to rotate, which in turn moves the valve core 5 upwards, opening the valve seat on the valve body 1 and the valve core 5. This allows the fluid to exit through the outlet 13. When closing the valve, the handwheel 2 is reversed, and the rotation of the handwheel 2 drives the valve stem 3 to rotate. The rotating valve stem 3 moves the valve core 5 downwards, allowing the valve core 5 to close. During the valve closing process, the shearing block 11 moves downwards and inserts into the valve seat on the valve body 1. The shearing force formed by the shearing block 11 and the valve seat on the valve body 1 removes impurities adhering to the side wall of the valve seat, which automatically fall into the drain pipe 9 at the bottom of the valve body 1. Then, the valve 10 is opened, and the drain pump 14 is activated to discharge the impurities from the drain pipe 9, preventing blockage caused by impurity deposition. Content not described in detail in this specification is prior art known to those skilled in the art.

[0027] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A welded electric shut-off valve, comprising a valve body (1), characterized in that: The valve body (1) has an inlet (12) at its left end and an outlet (13) at its right end. A valve cover (6) is connected to the top of the valve body (1) by fastening bolts. A valve core (5) is installed inside the valve body (1). A valve stem (3) is installed on the top of the valve core (5). A packing (7) is installed in the middle of the top of the valve cover (6). A packing pressure plate (8) is installed on the top of the packing (7). A valve stem nut (4) is installed directly above the packing pressure plate (8). The top of the valve stem (3) passes through the valve cover (6), the packing (7), the packing pressure plate (8), and the valve stem nut (4) and is connected to a handwheel (2). A sewage pipe (9) is installed at the bottom of the valve body (1). A sewage pump (14) is installed on the sewage pipe (9). A shear block (11) is connected to the bottom of the valve core (5).

2. The welded electric shut-off valve according to claim 1, characterized in that: A valve (10) is installed on the sewage pipe (9), and the valve (10) is located directly above the sewage pump (14).

3. The welded electric shut-off valve according to claim 1, characterized in that: The shear block (11) is circular in shape.

4. The welded electric shut-off valve according to claim 1, characterized in that: The sewage pipe (9) is located near the inlet (12) of the valve body (1).

5. A welded electric shut-off valve according to claim 1, characterized in that: The number of fastening bolts is set to six, and the six fastening bolts are arranged in a ring with equal spacing about the valve cover (6).

6. The welded electric shut-off valve according to claim 1, characterized in that: One side of the valve stem nut (4) is connected to one side wall of the valve cover (6) via a connector.

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