Short-stroke sealing stop valve

Abstract

The utility model belongs to the technical field of sealing stop valves, and particularly relates to a short-stroke sealing stop valve which comprises a valve body. A gasket is placed at the top of the valve body; a valve cover is mounted at the top of the gasket; a first bolt is connected between the valve cover and the valve body; the first bolts are arranged in the valve deck and the valve body in a circular array mode. The first bolt at the top of the valve cover is in threaded connection with a first nut; a packing gland is arranged in the valve cover; the top of the valve cover is fixedly connected with a second bolt; the second bolts are symmetrically arranged at the top of the valve cover; the second bolt is arranged in the packing gland and is in threaded connection with the packing gland; a second nut is in threaded connection with a second bolt at the top of the packing gland; through the structure, various sealing modes can be effectively combined to ensure a good sealing effect, and specific materials can play the advantage of good elasticity and are tightly attached to a sealing surface, so that medium leakage is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the technical field of sealing stop valves, specifically a short-stroke sealing stop valve. Background Technology

[0002] In today's booming industrial sector, fluid transport and control remain crucial for the stable, safe, and efficient operation of production processes. Various valves, as core components for regulating fluid direction and flow, bear a heavy responsibility.

[0003] Traditional long-stroke gate valves often suffer from slow opening and closing actions, which can lead to missed opportunities and significantly increase the risk of safety accidents. Furthermore, the long stroke means that the valve stem moves over a long period of time and over a wide range, which can easily cause mechanical failures, resulting in a poorer valve control feel and a sharp decline in sealing performance with increasing frequency of use.

[0004] Therefore, this utility model provides a short-stroke sealing shut-off valve. Utility Model Content

[0005] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a short-stroke sealing shut-off valve is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A short-stroke sealing shut-off valve of this utility model includes a valve body; a gasket is placed on the top of the valve body; a valve cover is installed on the top of the gasket; a first bolt connects the valve cover and the valve body; the first bolts are arranged in a circular array inside the valve cover and the valve body; a first nut is threaded onto the first bolt on the top of the valve cover; a packing gland is provided inside the valve cover; a second bolt is fixed to the top of the valve cover; the second bolts are symmetrically arranged on the top of the valve cover; the second bolts are threaded onto the packing gland inside the packing gland; the packing gland... A second nut is threaded onto the second bolt at the top of the valve cover; a valve stem is rotatably mounted on the top of the valve cover; the valve stem is located inside the valve body and valve cover; a handwheel is mounted on the top of the valve stem; a fixing nut is threaded onto the top of the handwheel and valve stem; a valve block is fixedly connected to the bottom of the valve stem; the valve block is located inside the valve body and is configured for sealing and sliding; a connecting block is fixedly connected to the side wall of the valve body; the connecting blocks are symmetrically arranged on the side wall of the valve body; multiple sealing methods can be effectively combined to ensure a good sealing effect, and specific materials can take advantage of their good elasticity to tightly fit the sealing surface and effectively prevent media leakage.

[0007] Preferably, the connecting block has a flange ring on its side wall; the flange ring is symmetrically arranged on the side wall of the valve body; the flange ring has a sealing pattern on its side wall; the sealing pattern is arranged in a linear array on the side wall of the flange ring; this can effectively ensure a good connection with the pipeline, with the bolt holes evenly distributed and reasonably spaced, which can meet the requirements of a stable connection without affecting the installation operation due to an overly compact layout, allowing the bolts to pass through and be tightened easily.

[0008] Preferably, a gasket groove is provided on the side wall of the flange ring; the gasket groove is located on one side of the flange ring; a sealing gasket is placed inside the gasket groove; this can effectively adapt to minor displacements and vibrations between flange rings to a certain extent, and can fill irregular gaps between sealing surfaces while still maintaining good sealing performance.

[0009] Preferably, the valve body has an inlay groove inside; the inlay groove is located below the valve block; this can effectively ensure that the inlay groove fits tightly with the valve block; this can effectively prevent media leakage when the valve is closed, ensure sealing performance, and prevent displacement due to media impact or valve block movement, thereby improving the reliability of the seal.

[0010] Preferably, an external pipe is connected to the side wall of the valve body; a pressure gauge is installed at the end of the inlay groove; this can effectively display the pressure value inside the valve, allowing the operator to accurately control the pressure state of the fluid at the valve.

[0011] Preferably, a connecting pipe is connected to the side wall of the valve body; the connecting pipe is located on one side of the mounting groove; a water quality monitoring meter is installed at the end of the connecting pipe; this can effectively detect the indicators inside the shut-off valve, and the operator can quickly use the short-stroke sealing shut-off valve to cut off the problematic water flow branch, preventing unqualified drinking water from flowing into the user's home.

[0012] Preferably, the valve body is provided with a protective rubber sealing gasket inside; the protective rubber sealing gasket is located inside the inlay groove; it can effectively block water flow, and even if the pipeline is displaced due to water pressure fluctuations or slight vibrations, it can adaptively adjust to maintain the sealing effect.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The short-stroke sealing stop valve of this utility model can effectively combine multiple sealing methods to ensure a good sealing effect, and the specific material can give full play to its good elasticity, tightly fit the sealing surface, and effectively prevent media leakage.

[0015] 2. The short-stroke sealing stop valve described in this utility model can effectively ensure a good connection with the pipeline. The bolt holes are evenly distributed and reasonably spaced, which can not only meet the requirements of a stable connection, but also avoid affecting the installation operation due to an overly compact layout, allowing the bolts to pass through and be tightened conveniently. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a side view of the shut-off valve in this utility model;

[0019] Figure 3 This is a schematic diagram of the valve block structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the inlay groove in this utility model.

[0021] In the diagram: 11. Valve body; 12. Gasket; 13. Valve cover; 14. First bolt; 15. First nut; 16. Packing gland; 17. Second bolt; 18. Second nut; 19. Valve stem; 110. Handwheel; 111. Fixing nut; 112. Valve block; 113. Connecting block; 21. Flange ring; 22. Sealing groove; 31. Gasket groove; 32. Sealing gasket; 41. Embedding groove; 51. External pipe; 52. Pressure gauge; 61. Connecting pipe; 62. Water quality monitoring gauge; 71. Protective rubber sealing gasket. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 4As shown, a short-stroke sealing shut-off valve according to an embodiment of the present invention includes a valve body 11; a gasket 12 is placed on the top of the valve body 11; a valve cover 13 is installed on the top of the gasket 12; a first bolt 14 connects the valve cover 13 and the valve body 11; the first bolt 14 is arranged in a circular array inside the valve cover 13 and the valve body 11; a first nut 15 is threaded onto the first bolt 14 on the top of the valve cover 13; a packing gland 16 is provided inside the valve cover 13; a second bolt 17 is fixedly connected to the top of the valve cover 13; the second bolt 17 is located on the valve cover. The top of valve cover 13 is symmetrically arranged; the second bolt 17 is located inside the packing gland 16 and is threadedly connected; a second nut 18 is threadedly connected to the second bolt 17 on the top of the packing gland 16; a valve stem 19 is rotatably mounted on the top of valve cover 13; the valve stem 19 is located inside the valve body 11 and valve cover 13; a handwheel 110 is mounted on the top of valve stem 19; a fixing nut 111 is threadedly connected to the top of the handwheel 110 and valve stem 19; a valve block 112 is fixedly connected to the bottom of valve stem 19; the valve block 112 is located inside the valve body 11 and is a sealing slide. The valve body 11 is equipped with a connecting block 113 fixedly connected to its side wall. The connecting blocks 113 are symmetrically arranged on the side wall of the valve body 11. During operation, when a stop valve needs to be installed, the connecting blocks 113 can be connected to the designated positions on both sides. By rotating the handwheel 110, the valve stem 19 can be rotated, causing the valve block 112 to slide inside the valve body 11, pushing it to the closed state. The second nut 18 and the second bolt 17 are then locked together, ensuring a tighter fit between the packing gland 16 and the valve block 112, and preventing internal leakage. Substances seep out through valve stem 19, and the fixing nut 111 on the top of handwheel 110 keeps valve stem 19 and handwheel 110 in a fixed state. The first bolt 14 and the first nut 15 are threaded together to lock valve body 11 and valve cover 13. The gasket 12 between them makes the locking state even tighter. Through the above structure, multiple sealing methods can be effectively combined to ensure a good sealing effect. The specific material can take advantage of its good elasticity and fit tightly to the sealing surface to effectively prevent media leakage.

[0025] like Figures 1 to 4As shown, a flange ring 21 is provided on the side wall of the connecting block 113; the flange ring 21 is symmetrically arranged on the side wall of the valve body 11; a sealing pattern 22 is provided on the side wall of the flange ring 21; the sealing pattern 22 is arranged in a linear array on the side wall of the flange ring 21; when a stop valve needs to be installed during operation, the two sides of the connecting block 113 of the stop valve can be connected at a designated position. The flange ring 21 is provided between the connecting blocks 113, which can make the two more tightly connected, and the sealing pattern 22 can make the connection more airtight; through the above structure, a good connection with the pipeline can be effectively ensured, the bolt holes are evenly distributed and reasonably spaced, which can meet the requirements of a stable connection, and will not affect the installation operation due to an overly compact layout, allowing the bolts to pass through and be tightened conveniently.

[0026] like Figure 1 and Figure 2 As shown, a gasket groove 31 is provided on the side wall of the flange ring 21; the gasket groove 31 is located on one side of the flange ring 21; a sealing gasket 32 ​​is placed inside the gasket groove 31; when a stop valve needs to be installed during operation, the sealing gasket 32 ​​placed inside the gasket groove 31 on the side wall of the flange ring 21 can make the flange ring 21 connected between the connecting blocks 113 tighter, increasing the sealing between the gaps; through the above structure, it can effectively adapt to the small displacements and vibrations between the flange rings 21 to a certain extent, and can fill the irregular gaps between the sealing surfaces, while still maintaining good sealing performance.

[0027] like Figure 1 and Figure 2 As shown, the valve body 11 has an inlay groove 41 inside; the inlay groove 41 is located below the valve block 112; during operation, when the shut-off valve is connected and fixed, when the valve block 112 inside the valve body 11 is pushed, it can be inserted into the inlay groove 41 to ensure a more reliable seal, and the valve block 112 can also be limited to slide within a specific area; through the above structure, it can effectively ensure that the valve can effectively prevent medium leakage when closed, ensure sealing performance, and prevent displacement due to the impact of the medium or the movement of the valve block 112, thereby improving the reliability of the seal.

[0028] like Figure 2 As shown, an external pipe 51 is connected to the side wall of the valve body 11; a pressure gauge 52 is installed at the end of the mounting groove 41; during operation, when the shut-off valve connection is terminated, the internal pressure can be detected through the external pipe 51 connected to the valve body 11 and the pressure gauge 52 installed at the end, allowing the operator to better observe the internal pressure and ensure safety during opening and maintenance; through the above structure, the internal pressure value of the valve can be effectively displayed, allowing the operator to accurately control the pressure state of the fluid at the valve.

[0029] like Figure 2 As shown, a connecting pipe 61 is connected to the side wall of the valve body 11; the connecting pipe 61 is located on one side of the mounting groove 41; a water quality monitoring meter 62 is installed at the end of the connecting pipe 61; during operation, when the shut-off valve is opened, the operator can use the connecting pipe 61 connected to the valve body 11 and the water quality monitoring meter 62 installed at the end to detect the internal substances, allowing the operator to record and test the internal substances; through the above structure, the internal indicators of the shut-off valve can be effectively detected, and the operator can quickly use the short-stroke sealing shut-off valve to cut off the problematic water flow branch, preventing unqualified drinking water from flowing into the user's home.

[0030] like Figure 1 and Figure 4 As shown, a protective rubber sealing gasket 71 is provided inside the valve body 11. The protective rubber sealing gasket 71 is located inside the mounting groove 41. During operation, when the operator pushes the valve block 112 to the designated position, the protective rubber sealing gasket 71 between the valve block 112 and the mounting groove 41 provides protection and sealing. This allows the valve block 112 to contact the valve body 11 when pushed, preventing damage to both over a long period, which would significantly reduce the sealing effect. Furthermore, the protective rubber sealing gasket 71 provides an even better sealing effect when closed. Through the above structure, water flow can be effectively blocked. Even if the pipeline is displaced due to water pressure fluctuations or slight vibrations, it can adaptively adjust to maintain the sealing effect.

[0031] When installing a stop valve during operation, the connecting blocks 113 of the stop valve can be connected to the designated positions on both sides. Rotating the handwheel 110 drives the valve stem 19 to rotate, allowing the valve block 112 to slide inside the valve body 11, pushing it to the closed state. Tightening the second nut 18 and the second bolt 17 ensures a tighter fit between the packing gland 16 and the valve block 112, preventing internal substances from leaking out through the valve stem 19. The fixing nut 111 at the top of the handwheel 110 keeps the valve stem 19 fixed to the handwheel 110. The first bolt 14 and... The first nut 15, with its threaded engagement, locks the valve body 11 and valve cover 13 together, and the gasket 12 between them ensures a tighter fit in the locked state. When a gate valve is to be installed, the connecting blocks 113 of the gate valve can be connected to the designated positions on both sides. The flange ring 21 located between the connecting blocks 113 further tightens the connection, and the sealing groove 22 ensures a more airtight seal. When a gate valve is to be installed, the sealing gasket 32 ​​placed inside the gasket groove 31 on the side wall of the flange ring 21 further tightens the flange ring 21 connected between the connecting blocks 113. Increase the sealing between gaps; when the gate valve is connected and fixed, when the valve block 112 inside the valve body 11 is pushed, it can be embedded in the groove 41 inside the valve body 11 to ensure a more reliable seal, and also to limit the sliding of the valve block 112 within a specific area; when the gate valve is connected and closed, the internal pressure can be detected through the external pipe 51 connected to the valve body 11 and the pressure gauge 52 installed at the end, allowing the operator to better observe the internal pressure and ensure safety during opening and maintenance; when the gate valve is opened, Operators can detect internal substances through the connecting pipe 61 connected to the valve body 11 and the water quality monitoring meter 62 installed at the end, allowing operators to record and test the internal substances. When the operator pushes the valve block 112 to the designated position, the protective rubber sealing gasket 71 set between the valve block 112 and the mounting groove 41 provides protection and sealing. This allows the valve block 112 to contact the valve body 11 when pushed, preventing damage to both over a long period, which would greatly reduce the seal. Furthermore, the protective rubber sealing gasket 71 also provides a more effective seal when closed.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A short-stroke sealing stop valve, comprising a valve body (11); characterized in that: A gasket (12) is placed on top of the valve body (11); a valve cover (13) is installed on top of the gasket (12); a first bolt (14) connects the valve cover (13) and the valve body (11); the first bolt (14) is arranged in a circular array inside the valve cover (13) and the valve body (11); a first nut (15) is threaded onto the first bolt (14) on top of the valve cover (13); a packing gland (16) is provided inside the valve cover (13); a second bolt (17) is fixed to the top of the valve cover (13); the second bolt (17) is arranged symmetrically on top of the valve cover (13); the second bolt (17) is threaded inside the packing gland (16); A second nut (18) is threaded onto the second bolt (17) at the top of the packing gland (16); a valve stem (19) is rotatably mounted on the top of the valve cover (13); the valve stem (19) is located inside the valve body (11) and the valve cover (13); a handwheel (110) is mounted on the top of the valve stem (19); a fixing nut (111) is threaded onto the top of the valve stem (19) of the handwheel (110); a valve block (112) is fixedly connected to the bottom of the valve stem (19); the valve block (112) is located inside the valve body (11) and is arranged in a sealed sliding configuration; a connecting block (113) is fixedly connected to the side wall of the valve body (11); the connecting blocks (113) are arranged symmetrically on the side wall of the valve body (11).

2. The short-stroke sealing shut-off valve according to claim 1, characterized in that: The connecting block (113) has a flange ring (21) on its side wall; the flange ring (21) is symmetrically arranged on the side wall of the valve body (11); the flange ring (21) has a sealing pattern (22) on its side wall; the sealing pattern (22) is arranged in a linear array on the side wall of the flange ring (21).

3. A short-stroke sealing shut-off valve according to claim 2, characterized in that: A gasket groove (31) is provided on the side wall of the flange (21); the gasket groove (31) is located on one side of the flange (21); a sealing gasket (32) is placed inside the gasket groove (31).

4. A short-stroke sealing shut-off valve according to claim 3, characterized in that: The valve body (11) has an inlay groove (41) inside; the inlay groove (41) is located below the valve block (112).

5. A short-stroke sealing shut-off valve according to claim 4, characterized in that: An external pipe (51) is connected to the side wall of the valve body (11); a pressure gauge (52) is installed at the end of the inlay groove (41).

6. A short-stroke sealing shut-off valve according to claim 5, characterized in that: A connecting pipe (61) is connected to the side wall of the valve body (11); the connecting pipe (61) is located on one side of the mounting groove (41); a water quality monitoring meter (62) is installed at the end of the connecting pipe (61).

7. A short-stroke sealing shut-off valve according to claim 6, characterized in that: The valve body (11) is provided with a protective rubber sealing gasket (71); the protective rubber sealing gasket (71) is located inside the inlay groove (41).

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