Plug valve

Abstract

The utility model relates to the technical field of valves, in particular to a plug valve which comprises a plug valve body. The air inlet pipe is arranged on the plug valve body; the filter plate is arranged in the air inlet pipe in a sliding manner and is used for filtering impurities; the exhaust part is arranged in the gas inlet pipe, the exhaust part is arranged at the end, away from the plug valve body, of the filter plate, and when impurities on the filter plate hinder gas circulation, gas is exhausted through the exhaust part; the spring piece is arranged in the air inlet pipe, the spring piece is arranged at the end, close to the plug valve body, of the filter plate, a spring is compressed when air circulates, impurities on the filter plate hinder air circulation, the spring is rebounded when the air is exhausted through the exhaust piece, and therefore the filter plate is pushed; the cleaning part is arranged in the air inlet pipe, the exhaust part is arranged at the end, away from the plug valve body, of the filter plate, impurities on the filter plate are cleaned in the moving process of the filter plate, the system can automatically sense blockage of the filter plate to start cleaning through the exhaust part, the spring part and the cleaning part, and manual maintenance requirements are reduced.

Description

Technical Field

[0001] This application relates to the field of valve technology, and more particularly to a plug valve. Background Technology

[0002] A plug valve is a valve that opens or closes a flow path by rotating a plug. The plug is usually a cylindrical or conical component with a channel. When the plug is rotated to a certain position, the channel is aligned with the valve's inlet and outlet, allowing fluid to pass through. When the plug is rotated to the point where the channel is misaligned with the inlet and outlet, the fluid is cut off. Plug valves can regulate fluid flow to a certain extent by changing the rotation angle of the plug, which alters the cross-sectional area of ​​the fluid channel.

[0003] Currently, Chinese utility model patent application CN 222717493U, published on April 4, 2025, provides a plug valve, including a valve body. A plug body is disposed within the valve body, and a valve cover is connected to the valve body via external hexagonal bolts. Upper packing and lower packing are disposed on the side of the plug body. A sealing ring is wrapped around the lower packing. A gasket is disposed on the upper side of the sealing ring, and a stuffing box is disposed on one side of the gasket, located on the side of the upper packing. An internal hexagonal bolt is disposed on the upper side of the stuffing box, which is threadedly connected to the valve body. A sealing ring is disposed between the plug body and the valve body, which has the advantage of increasing the sealing performance of the plug valve.

[0004] In the context of related technologies, plug valves cannot filter impurities in the transported gas during the process of using plug valves to transport gas. This causes impurities to accumulate inside the valve core, leading to cleaning problems. The accumulation of impurities inside the valve core will damage the sealing surface between the valve core and the valve body. The originally tightly fitted sealing parts will develop gaps due to the presence of impurities, resulting in gas leakage.

[0005] Therefore, it is necessary to provide a plug valve to solve the above problems. Utility Model Content

[0006] This application provides a plug valve to improve the technical problem in the related art where, during the process of using a plug valve to transport gas, impurities in the transported gas cannot be filtered, causing impurities to deposit inside the valve core and making it difficult to clean.

[0007] This application provides a plug valve, including:

[0008] A plug valve body is used to control gas flow;

[0009] The air inlet pipe, located on the stopcock valve body, is used to introduce gas into the stopcock valve body;

[0010] The filter plate is slidably installed inside the air intake pipe to filter impurities;

[0011] An exhaust component is installed inside the air intake pipe. The exhaust component is located at the end of the filter plate away from the stopcock valve body and is used to discharge gas through the exhaust component when impurities on the filter plate obstruct the gas flow.

[0012] A spring element is installed inside the air inlet pipe. The spring element is located on the end of the filter plate near the stopcock valve body. It is used to compress the spring when the gas is flowing. Impurities on the filter plate obstruct the gas flow. When the gas is discharged through the exhaust device, the spring rebounds, thereby pushing the filter plate.

[0013] A cleaning component is installed inside the intake pipe, and an exhaust component is installed on the end of the filter plate away from the stopcock valve body, used to clean impurities on the filter plate during its movement.

[0014] The technical solution described above in this application embodiment has at least the following technical effects: When the user uses the stopcock valve to transport gas, the gas enters the stopcock valve body from the inlet pipe and is filtered by the filter plate. The gas compresses the spring component. When impurities on the filter plate obstruct the gas flow, the gas pressure increases at the end of the filter plate away from the stopcock valve body, thereby discharging the gas through the exhaust component. After the gas is discharged, the pressure at both ends of the filter plate is equal, and the spring component pushes the filter plate, thereby the cleaning component cleans the impurities on the filter plate during the movement of the filter plate.

[0015] The plug valve provided in this application embodiment can automatically detect filter plate blockage and start the cleaning process through an exhaust component, a spring component, and a cleaning component, reducing the need for manual maintenance. When the filter plate is blocked, the system can respond in time to avoid obstruction of gas delivery. Through automatic cleaning, the filter plate can maintain a high filtration efficiency and avoid performance degradation caused by blockage.

[0016] In some embodiments, the exhaust component includes:

[0017] The connecting pipe is installed on the intake pipe;

[0018] The exhaust pipe is installed on the connecting pipe;

[0019] An exhaust spring is installed inside the connecting pipe;

[0020] The abutment plate, which is slidably sealed inside the connecting pipe, abuts against the end of the exhaust spring away from the connecting pipe.

[0021] In some embodiments, the spring element includes:

[0022] A spring bracket is provided inside the air intake pipe. The spring bracket is located on one end of the filter plate near the stopcock valve body. A vent hole is provided on the spring bracket.

[0023] A rebound spring is provided on one end of the spring bracket near the filter plate;

[0024] A spring block is disposed on the end of the spring spring away from the spring support.

[0025] In some embodiments, the filter plate and the air intake pipe are at an angle.

[0026] In some embodiments, the cleaning component includes:

[0027] A spring pad is installed inside the air intake pipe, and the spring pad is located on the end of the filter plate away from the valve body.

[0028] Clean the spring, which is placed on the spring pad;

[0029] An abutment piece is disposed on the end of the cleaning spring away from the spring pad;

[0030] A cleaning brush is provided on the abutment plate;

[0031] A guide sleeve, mounted on the spring pad, is used to reduce the twisting and deformation of the cleaning spring.

[0032] In some embodiments, the air intake pipe is further provided with a recovery connection pipe, and a recovery box is threadedly connected to the recovery connection pipe.

[0033] In some embodiments, the recycling bin is provided with a sealing gasket to seal the gap between the recycling connecting pipe and the recycling bin, and the stopcock valve body is provided with an air outlet pipe. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the plug valve provided in an embodiment of this application;

[0035] Figure 2 A cross-sectional structural diagram of the intake pipe provided in an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the exploded structure of the exhaust component provided in the embodiments of this application;

[0037] Figure 4 A three-dimensional structural schematic diagram of the spring component provided in the embodiments of this application;

[0038] Figure 5 A three-dimensional structural diagram of the cleaning component provided in an embodiment of this application;

[0039] Figure 6 A cross-sectional structural diagram of the recycling connection pipe and recycling box provided in the embodiments of this application;

[0040] The following are the labeling elements in the figure:

[0041] 1. Plug valve body; 11. Inlet pipe; 12. Outlet pipe; 13. Filter plate; 2. Exhaust components; 21. Connecting pipe; 22. Exhaust pipe; 23. Exhaust spring; 24. Abutment plate; 3. Spring components; 31. Spring bracket; 32. Vent hole; 33. Rebound block; 34. Rebound spring; 4. Cleaning components; 41. Spring pad; 42. Cleaning spring; 43. Abutment piece; 44. Cleaning brush; 45. Guide sleeve; 5. Recovery connecting pipe; 51. Recovery box; 52. Sealing gasket. Detailed Implementation

[0042] Based on this, in order to improve the technical problem in the related technology that the impurities in the transported gas cannot be filtered during the use of the plug valve, causing the impurities to deposit inside the valve core and making it difficult to clean, the embodiments of this application provide the following solution.

[0043] Please refer to the following: Figures 1 to 6 This application provides a stopcock valve, which includes a stopcock valve body 1 for controlling gas flow; an inlet pipe 11 disposed on the stopcock valve body 1 for introducing gas into the stopcock valve body 1; a filter plate 13 slidably disposed in the inlet pipe 11 for filtering impurities; an exhaust component 2 disposed in the inlet pipe 11 and disposed at the end of the filter plate 13 away from the stopcock valve body 1, for discharging gas through the exhaust component 2 when impurities on the filter plate 13 obstruct gas flow; a spring component 3 disposed in the inlet pipe 11 and disposed at the end of the filter plate 13 near the stopcock valve body 1, for compressing the spring when gas flows and rebounding the spring 34 when impurities on the filter plate 13 obstruct gas flow and gas is discharged through the exhaust component 2, thereby pushing the filter plate 13; and a cleaning component 4 disposed in the inlet pipe 11 and disposed at the end of the filter plate 13 away from the stopcock valve body 1, for cleaning impurities on the filter plate 13 during the movement of the filter plate 13.

[0044] With this configuration, when the user uses the stopcock valve to transport gas, the gas enters the stopcock valve body 1 from the inlet pipe 11 and is filtered by the filter plate 13. The gas compresses the spring 3. When impurities on the filter plate 13 obstruct the gas flow, the gas pressure increases at the end of the filter plate 13 away from the stopcock valve body 1, thereby discharging the gas through the exhaust component 2. After the gas is discharged, the pressure at both ends of the filter plate 13 is equal, and the spring 3 pushes the filter plate 13. Thus, the cleaning component 4 cleans the impurities on the filter plate 13 during its movement.

[0045] In some embodiments, please refer to the following: Figures 2 to 3The exhaust component 2 includes: a connecting pipe 21, disposed on the intake pipe 11; an exhaust pipe 22, disposed on the connecting pipe 21; an exhaust spring 23, disposed inside the connecting pipe 21; and an abutment plate 24, which is slidably sealed inside the connecting pipe 21 and abuts against the end of the exhaust spring 23 away from the connecting pipe 21. The spring component 3 includes: a spring bracket 31, disposed inside the intake pipe 11, the spring bracket 31 being disposed on the end of the filter plate 13 near the stopcock valve body 1, and the spring bracket 31 having a vent hole 32; a rebound spring 34, disposed on the end of the spring bracket 31 near the filter plate 13; and a rebound block 33, disposed on the end of the rebound spring 34 away from the spring bracket 31. The filter plate 13 and the intake pipe 11 form an angle.

[0046] With this configuration, when the user uses the stopcock valve to transport gas, the gas enters the stopcock valve body 1 from the inlet pipe 11 and is filtered by the filter plate 13. The gas compresses the spring spring 34 through the spring block 33, keeping the spring spring 34 in a compressed state. At the same time, the gas flows through the vent hole 32 on the spring bracket 31. When impurities on the filter plate 13 obstruct the gas flow, the gas pressure increases at the end of the filter plate 13 away from the stopcock valve body 1. This pressure causes the exhaust spring 23 to be compressed in the connecting pipe 21 through the abutment plate 24. When the height of the abutment plate 24 is lower than the height of the exhaust pipe 22, the gas is discharged from the exhaust pipe 22, reducing the pressure at the end of the filter plate 13 away from the stopcock valve body 1. At the same time, the spring spring 34 rebounds, pushing the filter plate 13 and causing the filter plate 13 to slide forward in the inlet pipe 11. In this way, the filter plate 13 can effectively filter impurities in the gas and prevent them from entering the valve core, thereby keeping the sealing surface between the valve core and the valve body clean and smooth. This avoids damage to the sealing surface caused by impurities, ensuring that the plug valve maintains good sealing performance during long-term use and reducing the risk of gas leakage. When impurities accumulate on the filter plate 13 and obstruct gas flow, this automatic cleaning mechanism eliminates the need for frequent manual disassembly and cleaning, reducing maintenance workload and time. Through automatic impurity cleaning, the filter plate 13 can always maintain good filtration effect. Even during long-term operation, the filter plate 13 will not become clogged due to impurity accumulation, thus continuously and effectively intercepting impurities in the gas and ensuring the purity of the gas.

[0047] In some embodiments, please refer to the following: Figures 2 to 6The cleaning component 4 includes: a spring pad 41 disposed inside the air inlet pipe 11, the spring pad 41 being disposed on the end of the filter plate 13 away from the stopcock valve body 1; a cleaning spring 42 disposed on the spring pad 41; an abutment plate 43 disposed on the end of the cleaning spring 42 away from the spring pad; a cleaning brush 44 disposed on the abutment plate 43; and a guide sleeve 45 disposed on the spring pad 41 to reduce the torsional deformation of the cleaning spring 42. The air inlet pipe 11 is also provided with a recovery connecting pipe 5, a recovery box 51 is threadedly connected to the recovery connecting pipe 5, and a sealing gasket 52 is provided on the recovery box 51 to seal the gap between the recovery connecting pipe 5 and the recovery box 51.

[0048] With this configuration, since the filter plate 13 and the air inlet pipe 11 form an angle, as the filter plate 13 moves forward, it abuts against the cleaning brush 44. The cleaning brush 44 presses against the cleaning spring 42 via the abutment plate 43. The brush moves on the filter plate 13, cleaning impurities from it. The cleaned dust is collected through the recovery box 51. When gas transmission stops, the recovery box 51 is rotated down on the recovery connecting pipe 5 to clean the impurities. Thus, the angle between the filter plate 13 and the air inlet pipe 11 allows the filter plate 13 to fully contact the cleaning brush 44 as it moves forward. The cleaning brush 44, through the action of the abutment plate 43 and the cleaning spring 42, can reciprocate on the surface of the filter plate 13, thereby more effectively removing impurities from it. This mechanical cleaning method is more thorough than simple vibration cleaning, reaching deep into the gaps of the filter plate 13 to clean the attached impurities and restore the filtration performance of the filter plate 13.

[0049] The implementation principle of a plug valve in this application embodiment is as follows: During the process of the user using the plug valve to transport gas, the gas enters the plug valve body 1 from the inlet pipe 11 and is filtered by the filter plate 13. The gas compresses the rebound spring 34 through the rebound block 33, so that the rebound spring 34 is in a compressed state. At the same time, the gas flows through the vent hole 32 on the spring bracket 31. When impurities on the filter plate 13 obstruct the gas flow, the gas pressure increases at the end of the filter plate 13 away from the plug valve body 1, thereby causing the pressure to compress the exhaust spring 23 in the connecting pipe 21 through the abutment plate 24. When the height of the abutment plate 24 is lower than the height of the exhaust pipe 22, the gas... The gas is discharged from the exhaust pipe 22, reducing the pressure on the end of the filter plate 13 away from the stop valve body 1. At the same time, the return spring 34 rebounds, pushing the filter plate 13, causing the filter plate 13 to slide forward in the intake pipe 11. Since there is an angle between the filter plate 13 and the intake pipe 11, the filter plate 13 abuts against the cleaning brush 44 during the forward movement of the filter plate 13. The cleaning brush 44 presses against the cleaning spring 42 through the abutment plate 43. The brush moves on the filter plate 13 to clean the impurities on the filter plate 13. The cleaned dust is collected through the recovery box 51. When the gas transmission stops, the impurities are cleaned by rotating the recovery box 51 on the recovery connection pipe 5.

[0050] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plug valve, characterized in that, include: A plug valve body (1) is used to control gas flow; An air inlet pipe (11) is installed on the stopcock valve body (1) and is used to introduce gas into the stopcock valve body (1); The filter plate (13) is slidably disposed inside the air inlet pipe (11) for filtering impurities; An exhaust component (2) is installed inside the air inlet pipe (11). The exhaust component (2) is installed on the end of the filter plate (13) away from the stop valve body (1). It is used to discharge gas through the exhaust component (2) when impurities on the filter plate (13) obstruct the gas flow. A spring element (3) is provided in the air inlet pipe (11). The spring element (3) is provided on one end of the filter plate (13) near the stopcock valve body (1). It is used to compress the spring when the gas is flowing. Impurities on the filter plate (13) obstruct the flow of gas. When the gas is discharged through the exhaust element (2), the spring rebounds, thereby pushing the filter plate (13). The cleaning component (4) is installed inside the air intake pipe (11), and the exhaust component (2) is installed on the end of the filter plate (13) away from the stop valve body (1) for cleaning impurities on the filter plate (13) during the movement of the filter plate (13).

2. A plug valve according to claim 1, characterized in that, The exhaust component (2) includes: A connecting pipe (21) is installed on the air intake pipe (11); An exhaust pipe (22) is installed on a connecting pipe (21); An exhaust spring (23) is disposed inside the connecting pipe (21); The abutment plate (24) is slidably sealed inside the connecting pipe (21) and abuts against the end of the exhaust spring (23) away from the connecting pipe (21).

3. A plug valve according to claim 2, characterized in that, The spring element (3) includes: A spring bracket (31) is provided inside the air inlet pipe (11). The spring bracket (31) is provided on one end of the filter plate (13) near the stopcock valve body (1). A vent hole (32) is provided on the spring bracket (31). A rebound spring (34) is provided on one end of the spring bracket (31) near the filter plate (13); A spring block (33) is disposed on the end of the spring spring (34) away from the spring support (31).

4. A plug valve according to claim 3, characterized in that: The filter plate (13) and the air intake pipe (11) form an angle.

5. A plug valve according to claim 4, characterized in that, The cleaning component (4) includes: A spring pad (41) is provided inside the air inlet pipe (11), and the spring pad (41) is provided on the end of the filter plate (13) away from the stopcock valve body (1); Cleaning spring (42) is provided on the spring pad (41); An abutment piece (43) is disposed on the end of the cleaning spring (42) away from the spring pad (41); A cleaning brush (44) is provided on the abutment piece (43); A guide sleeve (45) is provided on the spring pad (41) to reduce the torsional deformation of the cleaning spring (42).

6. A plug valve according to claim 5, characterized in that: The intake pipe (11) is also provided with a recovery connection pipe (5), and a recovery box (51) is threadedly connected to the recovery connection pipe (5).

7. A plug valve according to claim 6, characterized in that: The recycling bin (51) is provided with a sealing gasket (52) for sealing the gap between the recycling connecting pipe (5) and the recycling bin (51).

Images