Ball valve filter structure

Abstract

The utility model relates to a ball valve filter structure, including the valve body, the ball body in the valve body, with the left valve seat and right valve seat of ball body left and right two sides are pasted, with the valve rod of ball body top surface connection, the ball body is equipped with with the flow channel of valve body left and right pipe orifice intercommunication, its technical key point is: the flow channel front end is embedded with filter groove, the bottom surface of filter groove is equipped with filter hole group, the front lateral wall of valve body is equipped with the cleaning port, the cleaning port is opposite with the flow channel of being cut off state, the cleaning port outer end is equipped with the apron, the apron is equipped with the upper liquid injection port and lower liquid outlet, the upper liquid injection port and lower liquid outlet are equipped with internal thread and utilize internal thread connection plug, the outside of plug is equipped with knob. The utility model has solved the problem that the impurity of filter screen place interception is not favorable to cleaning, and the cleaning is convenient, avoids the blockage.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and specifically to a ball valve filter structure. Background Technology

[0002] A ball valve is a valve that controls the opening, closing, or regulation of fluid flow by rotating a ball inside the valve body. Specifically, rotating the ball changes the orifice size, thus regulating the flow rate. When the ball is in the closed position, it completely seals the fluid passage, stopping the flow of fluid. Ball valves are characterized by rapid closing, allowing for quick fluid shut-off in emergencies to prevent accidents, making them suitable for applications requiring rapid fluid interruption. Furthermore, ball valves offer low fluid resistance when open, reducing energy waste. Ball valves are widely used in industries such as petroleum, chemical, metallurgy, power generation, and water treatment.

[0003] To intercept impurities in fluids, existing ball valves typically incorporate an external filter structure. For example, CN 223152853 U discloses a ball valve filter structure comprising a valve body with a flow channel within it. A ball is rotatably positioned within the flow channel, and a valve stem connecting the ball is also provided within the valve body. The ball comprises a first body, a filter screen, and a bottom block. A limiting groove is recessed on the first body, and the filter screen is slidably engaged within the limiting groove. An opening groove communicating with the outside and the limiting groove is provided on the first body. The bottom block is detachably connected to the opening groove and limits the position of the filter screen. A bottom groove is formed at the bottom of the valve body, and a bottom cover is fixed to the bottom groove. The key feature of this filter structure is the opening groove at the bottom of the valve body, allowing for bottom-level filter screen replacement. However, this makes it difficult to clean impurities intercepted by the filter screen during routine maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a ball valve filter structure that is reasonably structured and reliable in use, solving the problem that impurities trapped at the filter screen are difficult to clean, making cleaning convenient and avoiding clogging.

[0005] The technical solution of this utility model is: A ball valve filter structure includes a valve body, a ball disposed within the valve body, a left valve seat and a right valve seat attached to the left and right sides of the ball, and a valve stem connected to the top surface of the ball. The ball is provided with a flow channel communicating with the left and right ports of the valve body. The key technical features are: a filter groove is embedded at the front end of the flow channel, a filter hole group is provided on the bottom surface of the filter groove, a cleaning port is provided on the front side wall of the valve body, the cleaning port is opposite to the flow channel in the blocked state, a cover plate is provided at the outer end of the cleaning port, an upper liquid injection port and a lower liquid outlet are provided on the cover plate, the upper liquid injection port and the lower liquid outlet are provided with internal threads and are connected to a plug by the internal threads, and a knob is provided on the outside of the plug.

[0006] In the ball valve filter structure described above, the upper injection port is connected to the water injection pipe via an internal thread before cleaning.

[0007] In the ball valve filter structure described above, the filter tank is a filter cylinder with a bottom plate, the filter hole group is located on the bottom plate, the upper edge of the filter cylinder is provided with an outward flange, the outward flange is stuck on the ball, and the outer diameter of the filter cylinder is larger than the inner diameter of the flow channel, and it is interference-fitted with the flow channel.

[0008] The beneficial effects of this utility model are: When the valve body is open, a filter groove intercepts impurities. When the valve body is closed, the filter groove faces the cleaning port on the side wall of the valve body. The two plugs at the upper injection port and lower outlet are opened, and a water injection pipe is connected. Pressurized water is injected into the valve body through the water injection pipe. The water flow impacts the filter groove, causing impurities and water to be discharged through the lower outlet. At this time, the left and right valve seats and the ball are sealed, preventing impurities from flowing to the left and right ports of the valve body. This invention solves the problem of impurities intercepted by the filter screen in existing technologies being difficult to clean, making cleaning convenient and avoiding clogging. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the internal structure of this utility model; Figure 2 This is a schematic diagram of the assembly of the left and right valve seats, the ball, and the filter tank of this utility model; Figure 3 This is a schematic diagram of the external structure of the valve body of this utility model; Figure 4 This is a schematic diagram of the assembly of the valve body and cover plate of this utility model.

[0010] In the diagram: 1. Valve body, 2. Valve stem, 3. Left valve seat, 4. Ball, 5. Right valve seat, 6. Filter tank, 7. Left port, 8. Right port, 9. Filter hole group, 10. Cover plate, 11. Upper liquid inlet, 12. Lower liquid outlet, 13. Cleaning port, 14. Blockage, 15. Knob. Detailed Implementation

[0011] The present invention will be described in detail with reference to the accompanying drawings.

[0012] like Figures 1-4 As shown, the ball valve filter structure includes a valve body 1, a ball 4 disposed in the valve body 1, a left valve seat 3 and a right valve seat 5 attached to the left and right sides of the ball 4, and a valve stem 2 connected to the top surface of the ball 4. The ball 4 is provided with a flow channel communicating with the left and right ports of the valve body 1.

[0013] The flow channel has a filter groove 6 embedded at its front end, and the bottom surface of the filter groove 6 is provided with a filter hole group 9. In this embodiment, the filter groove 6 is a filter cylinder with a bottom plate, the filter hole group 9 is located on the bottom plate, the upper edge of the filter cylinder is provided with an outward flange, the outward flange is locked onto the sphere 4, and the outer diameter of the filter cylinder is larger than the inner diameter of the flow channel, thus interfering with the flow channel.

[0014] The front side wall of the valve body 1 is provided with a cleaning port 13, which is opposite to the flow channel in the blocked state. The outer end of the cleaning port 13 is provided with a cover plate 10. The cover plate 10 is provided with an upper injection port 11 and a lower outlet port 12. The upper injection port 11 and the lower outlet port 12 are provided with internal threads and are connected to a plug 14 by the internal threads. A knob 15 is provided on the outside of the plug 14.

[0015] Working principle: During operation, water enters through the left port 7 of valve body 1, is filtered by filter tank 6, and then flows through the flow channel to the right port 8 of valve body 1. During this process, filter tank 6 intercepts impurities in the water.

[0016] When valve body 1 is closed, valve stem 2 rotates ball 4 90 degrees, and the filter tank 6 at the front end of the flow channel faces the cleaning port 13. The two plugs 14 at the upper injection port 11 and lower outlet port 12 are opened. Before cleaning, the upper injection port 11 is connected to a water injection pipe via an internal thread (omitted in the figure). Pressurized water is injected into valve body 1 (the space between the left and right valve seats) through the water injection pipe. The water flow impacts the filter tank 6, causing impurities and water to be discharged through the lower outlet port 12, thus achieving the cleaning purpose.

[0017] When valve body 1 is opened again, valve stem 2 drives ball 4 to rotate 90 degrees in the opposite direction to reset, so that the flow channel is connected to the left and right ports of valve body 1.

[0018] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A ball valve filter structure, comprising a valve body, a ball disposed within the valve body, a left valve seat and a right valve seat abutting the left and right sides of the ball, and a valve stem connected to the top surface of the ball, wherein the ball is provided with flow channels communicating with the left and right ports of the valve body, characterized in that: The front end of the flow channel is fitted with a filter groove, the bottom surface of the filter groove is provided with a filter hole group, the front side wall of the valve body is provided with a cleaning port, the cleaning port is opposite to the flow channel in the blocked state, the outer end of the cleaning port is provided with a cover plate, the cover plate is provided with an upper liquid injection port and a lower liquid outlet, the upper liquid injection port and the lower liquid outlet are provided with internal threads and are connected to the plug by the internal threads, and a knob is provided on the outside of the plug.

2. The ball valve filter structure according to claim 1, characterized in that: Before cleaning, the upper injection port is connected to the water injection pipe using an internal thread.

3. The ball valve filter structure according to claim 1, characterized in that: The filter tank is a filter cylinder with a bottom plate. The filter hole group is located on the bottom plate. The upper edge of the filter cylinder is provided with an outward flange. The outward flange is stuck on the sphere. The outer diameter of the filter cylinder is larger than the inner diameter of the flow channel and is interference-fitted with the flow channel.

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