Ball valve with self-cleaning function

Abstract

The utility model provides a kind of ball valve with self-cleaning function, it is related to ball valve technical field, comprising: ball valve body;Two ball valve pipelines are fixedly arranged at the two sides of ball valve body;Two self-cleaning mechanisms are arranged at the junction of two ball valve pipelines, including fixed mounting structure, replaceable filter structure, two upper quick-release locking structures, two lower quick-release locking structures and connecting pipe, fixed mounting structure is arranged at ball valve pipeline, for installing replaceable filter structure, replaceable filter structure is used to filter and clean moisture, replaceable filter structure is inserted with the insertion cooperation of outer fixed housing inner guide sealing groove using "mounting seat+sealed plug-in block", combined with upper quick-release locking (thread connection of limit clamping column) and lower quick-release locking (elastic clamping of spring clamping block), without disassembling flange bolt, only by flat tool operation, it can be quickly unlocked by pulling lever, and direct plug-in mounting seat completes filter screen replacement.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a ball valve with a self-cleaning function. Background Technology

[0002] Ball valves, as core components for controlling the flow of fluids in fluid transport systems, are widely used in water supply and drainage, chemical, and energy fields. However, when the medium contains impurities (such as silt, particles, flocculent matter, etc.), these impurities tend to accumulate inside the valve body, which not only blocks the flow path and reduces flow efficiency, but also accelerates the wear of the valve core and seals, shortening the service life of the ball valve. Therefore, ball valves with self-cleaning functions have gradually become a key focus of industry research and development.

[0003] Chinese utility model patent CN209877654U, entitled "A Filter Ball Valve", discloses a scheme for achieving media filtration through a filter assembly connected by a flange.

[0004] However, the above solution still has the following shortcomings when implemented:

[0005] If the filter screen is only fixed by bolts, it is prone to shaking, displacement, or even collision with the valve body under the impact of high-velocity media, which shortens the life of the filter screen.

[0006] Therefore, we propose a ball valve with a self-cleaning function. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies, where the filter screen is only fixed by bolts. Under the impact of high-velocity media, it is prone to shaking, displacement, or even collision with the valve body, thus shortening the filter screen's lifespan.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A ball valve with self-cleaning function includes: a ball valve body; and two ball valve pipes, both fixedly disposed on both sides of the ball valve body.

[0010] Two self-cleaning mechanisms are located at the free ends of the two ball valve pipes. Each mechanism includes a fixed installation structure, a replaceable filter structure, two upper quick-release locking structures, two lower quick-release locking structures, and a connecting pipe. The fixed installation structure is located at the ball valve pipe and is used to install the replaceable filter structure, which is used to filter and clean water. The two upper quick-release locking structures and the two lower quick-release locking structures are located inside the replaceable filter structure and are used to separate the replaceable filter structure. The connecting pipe is installed on the outside of the fixed installation structure.

[0011] As a preferred embodiment of this utility model, the fixed installation structure includes: an outer fixed housing, fixedly disposed at the connection of the ball valve pipeline; a sealing cover plate, bolted to the top of the outer fixed housing; several guide sealing grooves, all formed on the two side walls inside the outer fixed housing; several sealing gaskets, all fixedly disposed on the inner walls of the several guide sealing grooves; and a connecting cavity, formed inside the outer fixed housing, for the passage of water and installation of a replaceable filter structure.

[0012] As a preferred embodiment of this utility model, the replaceable filter structure includes: a mounting base; several sealing plug-in blocks, all fixedly connected to the two side walls of the mounting base and inserted into the guide sealing groove for use; a handle, located at the center of the top of the mounting base, for lifting the mounting base; and a filter screen body, disposed inside the mounting base for filtering water, and fixed inside the mounting base by two upper quick-release locking structures and two lower quick-release locking structures.

[0013] As a preferred embodiment of this utility model, the quick-release locking structure includes: a fixing hole, which is formed inside the mounting base and on the top of the filter body; a first thread, which is formed on the inner wall of the fixing hole in the mounting base section; a limiting snap-fit ​​post, which is inserted into the fixing hole and whose bottom abuts against the top of the filter body; a second thread, which is formed on the outer wall of the limiting snap-fit ​​post and is threadedly connected to the first thread; and a flat opening, which is formed on the top of the limiting snap-fit ​​post for use with an adapter to open the limiting snap-fit ​​post.

[0014] As a preferred embodiment of this utility model, the lower quick-release locking structure includes: a snap-fit ​​groove, formed in the side wall of the mounting base; a mounting groove, formed in the side wall of the filter body; two sliding grooves, both starting on the front and back side walls of the mounting groove; and two sliding blocks, both slidably connected inside the two sliding grooves.

[0015] A snap-fit ​​block is fixedly disposed between two sliding blocks; a spring is fixedly disposed inside the mounting groove, with one end fixed to the snap-fit ​​block; a through groove is formed on the outer wall of the filter body, and its interior is connected to the mounting groove; a toggle rod is fixedly disposed on the front of the snap-fit ​​block and located inside the through groove.

[0016] As a preferred embodiment of this utility model, the mounting base is inserted into the guide sealing groove through a sealing plug block, and the edge is squeezed to seal the gasket; rotating the flat opening drives the second thread of the limiting snap-fit ​​post to connect to the first thread of the fixing hole, thereby locking the top of the filter screen body; the actuating rod adopts a two-section structure and can extend out of the through groove for easy pulling; when the actuating rod is pushed, the snap-fit ​​block and the sliding block slide in the sliding groove and compress the spring.

[0017] As a preferred embodiment of this utility model, it further includes: two external pipes, which are bolted to the two connecting pipes.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In this utility model, the replaceable filter structure adopts the "mounting base + sealing plug block" and the guide sealing groove inside the outer fixed housing for plug-in cooperation. Combined with the upper quick-release lock (the threaded connection of the limit snap-fit ​​column) and the lower quick-release lock (the elastic snap-fit ​​of the spring snap-fit ​​block), there is no need to remove the flange bolts. It can be quickly unlocked by simply operating a flat-end tool and pulling the lever. The filter screen can be replaced by directly plugging and unplugging the mounting base, which greatly shortens the maintenance time and improves the maintenance efficiency.

[0020] The inner wall of the outer fixed housing is provided with a guide sealing groove and a sealing gasket. When the sealing plugs on both sides of the mounting base are inserted, they squeeze the sealing gasket to form the first seal. The contact surface between the mounting base and the outer fixed housing and the bolts of the sealing cover are pressed together to further enhance the sealing effect. The multi-seal design avoids the defects of traditional end face seals that are easy to wear and leak. It can still maintain stable pressure after long-term use.

[0021] The filter body is double-fixed by "upper thread locking (limiting snap-fit ​​post) + lower elastic snap-fit ​​(spring snap-fit ​​block)" and together with the overall support of the mounting base, it effectively resists the impact load of high flow rate media, prevents filter screen from shifting, loosening or collision damage, and significantly improves the structural stability and service life of the filter screen and ball valve.

[0022] The "integral plug-in + quick-release locking" design with replaceable filter structure supports rapid replacement of filters under complex working conditions, which not only avoids system downtime caused by impurity accumulation, but also adapts to customized replacement of filters with different impurity characteristics, greatly improving the ball valve's adaptability to multiple scenarios. Attached Figure Description

[0023] Figure 1 A schematic diagram of the main structure of a ball valve with self-cleaning function provided by this utility model;

[0024] Figure 2 A partial structural diagram of a self-cleaning mechanism with self-cleaning function provided by this utility model;

[0025] Figure 3 A schematic diagram showing the unfolded upper quick-release locking structure of a ball valve with self-cleaning function provided by this utility model;

[0026] Figure 4 A schematic diagram showing the removal of the mounting base of a ball valve with self-cleaning function provided by this utility model;

[0027] Figure 5 This utility model provides a ball valve with a self-cleaning function. Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 6 A partial structural cross-sectional view of a ball valve with self-cleaning function provided by this utility model;

[0029] Figure 7 A cross-sectional schematic diagram of the self-cleaning mechanism of a ball valve with self-cleaning function provided by this utility model;

[0030] Figure 8 This utility model provides a ball valve with a self-cleaning function. Figure 7 Enlarged schematic diagram of the structure at point B.

[0031] Legend: 10. Ball valve body; 20. Ball valve pipe; 30. Self-cleaning mechanism; 301. Outer fixed housing; 302. Sealing cover; 303. Guide sealing groove; 304. Sealing gasket; 305. Connecting cavity; 306. Mounting base; 307. Sealing plug block; 308. Fixing hole; 309. First thread; 310. Limiting snap-fit ​​post; 311. Second thread; 312. Flat end; 313. Handle; 314. Filter screen body; 315. Snap-fit ​​groove; 316. Mounting groove; 317. Sliding groove; 318. Sliding block; 319. Snap-fit ​​block; 320. Spring; 321. Through groove; 322. Actuating rod; 323. Connecting pipe; 40. External pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to 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.

[0033] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Example

[0037] like Figure 1-8 As shown, this utility model provides a technical solution: a ball valve with self-cleaning function, comprising: a ball valve body 10;

[0038] Two ball valve pipes 20 are fixedly installed on both sides of the ball valve body 10;

[0039] Two self-cleaning mechanisms 30 are both located at the free ends of the two ball valve pipes 20. They include a fixed installation structure, a replaceable filter structure, two upper quick-release locking structures, two lower quick-release locking structures, and a connecting pipe 323. The fixed installation structure is located at the ball valve pipe 20 and is used to install the replaceable filter structure. The replaceable filter structure is used to filter and clean water. The two upper quick-release locking structures and the two lower quick-release locking structures are both located inside the replaceable filter structure and are used to separate the replaceable filter structure. The connecting pipe 323 is installed on the outside of the fixed installation structure.

[0040] The ball valve body 10 allows fluid to enter and exit through the ball valve pipes 20 on both sides. The self-cleaning mechanism 30 is connected to the ball valve pipes 20 through a fixed installation structure. The replaceable filter structure intercepts impurities in the water when the fluid passes through. When the impurities accumulate to a certain extent, the replaceable filter structure can be separated from the fixed installation structure for cleaning or replacement by operating the upper quick-release locking structure and the lower quick-release locking structure. The connecting pipe 323 is used to connect to the external pipeline so that the fluid can smoothly enter or flow out of the self-cleaning mechanism 30.

[0041] The fixed installation structure includes:

[0042] The outer fixed housing 301 is fixedly installed at the connection of the ball valve pipeline 20;

[0043] The sealing cover 302 is bolted to the top of the outer fixed housing 301;

[0044] Several guide sealing grooves 303 are formed on both sides of the inner side wall of the outer fixed housing 301;

[0045] Several sealing gaskets 304 are fixedly installed on the inner wall of several guide sealing grooves 303;

[0046] The connecting cavity 305 is located inside the outer fixed housing 301 and is used for water flow and installation of replaceable filter structures.

[0047] The outer fixed housing 301 provides a supporting foundation for the entire fixed installation structure, ensuring its stable connection to the ball valve pipeline 20. The sealing cover 302 is fixed to the top of the outer fixed housing 301 by bolts and can be opened to facilitate operation of the internal replaceable filter structure. The guide sealing groove 303 provides guidance for the installation of the replaceable filter structure, ensuring its accurate positioning. At the same time, the internal sealing gasket 304 is squeezed after the replaceable filter structure is inserted, achieving a seal between the two and preventing fluid leakage. The connecting cavity 305 serves as a fluid channel, allowing water to flow through while providing installation space for the replaceable filter structure, enabling the filter structure to intercept impurities in the water flow path.

[0048] Replaceable filter structures include:

[0049] Mounting bracket 306;

[0050] Several sealing plug-in blocks 307 are fixedly connected to the two side walls of the mounting base 306 and are inserted into the guide sealing groove 303 for use;

[0051] A handle 313 is provided at the center of the top of the mounting base 306 for lifting the mounting base 306;

[0052] The filter body 314 is located inside the mounting base 306 and is used to filter water. It is fixed inside the mounting base 306 by two upper quick-release locking structures and two lower quick-release locking structures.

[0053] The mounting base 306 serves as the main frame of the replaceable filter structure. It engages with the guide sealing grooves 303 of the outer fixed housing 301 via sealing plugs 307 on both sides, enabling the entire filter structure to be positioned and installed. After the sealing plugs 307 are inserted into the guide sealing grooves 303, they make tight contact with the sealing gaskets 304, enhancing the sealing performance after installation. The handle 313 allows operators to easily lift the mounting base 306, facilitating the removal or insertion of the entire replaceable filter structure from the outer fixed housing 301. The filter screen body 314 is located inside the mounting base 306. When water flows through the connecting cavity 305, it passes through the filter screen body 314, intercepting impurities in the water, thus achieving water filtration and cleaning. Furthermore, the filter screen body 314 is stably fixed within the mounting base 306 via upper and lower quick-release locking structures, preventing displacement under water flow impact.

[0054] The quick-release locking structure includes:

[0055] The fixing hole 308 is formed inside the mounting base 306 and on the top of the filter body 314;

[0056] The first thread 309 is formed on the inner wall of the fixing hole 308 in the mounting base 306;

[0057] The limiting locking post 310 is inserted into the inside of the fixing hole 308, and its bottom abuts against the top of the filter screen body 314;

[0058] The second thread 311 is formed on the outer wall of the limiting snap-fit ​​post 310 and is threadedly connected to the first thread 309.

[0059] The flat end 312 is located at the top of the limit card connector 310 and is used to adapt tools to open the limit card connector 310.

[0060] The fixing hole 308 provides an installation channel for the limiting snap-fit ​​post 310. The first thread 309 on the inner wall of the fixing hole 308 of the mounting base 306 engages with the second thread 311 on the outer wall of the limiting snap-fit ​​post 310, and the limiting snap-fit ​​post 310 is fixed in the fixing hole 308 through the threaded connection. The bottom of the limiting snap-fit ​​post 310 abuts against the top of the filter screen body 314, applying downward pressure to the filter screen body 314 and fixing its top in the mounting base 306. When it is necessary to remove the filter screen body 314, use an appropriate tool to insert into the flat end 312 and rotate it to drive the limiting snap-fit ​​post 310 to rotate, so that the second thread 311 disengages from the first thread 309, and the limiting snap-fit ​​post 310 can be removed from the fixing hole 308, releasing the lock on the top of the filter screen body 314.

[0061] The quick-release locking structure includes:

[0062] The snap-fit ​​groove 315 is formed inside the side wall of the mounting base 306;

[0063] The mounting groove 316 is formed inside the side wall of the filter body 314;

[0064] Both sliding grooves 317 begin on the front and back sidewalls of the mounting groove 316;

[0065] Both sliding blocks 318 are slidably connected inside the two sliding grooves 317;

[0066] The snap-fit ​​block 319 is fixedly disposed between the two sliding blocks 318;

[0067] Spring 320 is fixedly installed inside mounting groove 316, and one end is fixed to snap-fit ​​block 319;

[0068] The through groove 321 is formed on the outer wall of the filter screen body 314 and is connected to the mounting groove 316 inside;

[0069] The toggle lever 322 is fixedly mounted on the front of the snap-fit ​​block 319 and located inside the through groove 321.

[0070] The snap-fit ​​groove 315 provides snap-fit ​​space for the snap-fit ​​block 319, and the mounting groove 316 provides mounting positions for other components of the lower quick-release locking structure; the sliding block 318 slides in the sliding groove 317, providing guidance for the movement of the snap-fit ​​block 319 and ensuring its linear movement; in its natural state, the spring 320 is in the extended state, pushing the snap-fit ​​block 319 to move out of the mounting groove 316, so that the snap-fit ​​block 319 snaps into the snap-fit ​​groove 315 of the mounting base 306, thereby fixing the lower part of the filter body 314 in the mounting base 306; when unlocking is required, the lever 322 is moved through the through groove 321, causing the snap-fit ​​block 319 to compress the spring 320 and move into the mounting groove 316, so that the snap-fit ​​block 319 exits from the snap-fit ​​groove 315, releasing the lock on the lower part of the filter body 314.

[0071] The mounting base 306 is inserted into the guide sealing groove 303 through the sealing plug 307, and the edge is squeezed to seal the sealing gasket 304.

[0072] Rotating the flat end 312 causes the second thread 311 of the limiting locking post 310 to be threaded into the first thread 309 of the fixing hole 308, thereby locking the top of the filter screen body 314.

[0073] The lever 322 has a two-section structure and can extend out of the through slot 321 for easy pulling;

[0074] When the lever 322 is pushed, the locking block 319 and the sliding block 318 slide within the sliding groove 317, and compress the spring 320.

[0075] When the sealing plug 307 of the mounting base 306 is inserted into the guide sealing groove 303, the edge of the sealing plug 307 comes into close contact with and is squeezed against the sealing gasket 304, causing the sealing gasket 304 to deform and fill the gap between them, thus achieving a seal between the mounting base 306 and the outer fixed housing 301 and preventing fluid leakage from the gap; when the flat end 312 is rotated, the limiting locking post 310 rotates with it, causing the second thread 311 to gradually engage with the first thread 309, and the limiting locking post 310 moves downward. The actuating rod 322 moves and presses against the top of the filter screen body 314, pressing it firmly and fixing it. The two-section structure of the actuating rod 322 allows it to extend out of the through groove 321, increasing the operating contact area and making it easier for the operator to apply force to pull it. When the actuating rod 322 is pushed, the force is transmitted to the locking block 319 through the actuating rod 322, causing the locking block 319 to drive the sliding block 318 to slide along the sliding groove 317 into the mounting groove 316. At the same time, the compressed spring 320 stores elastic potential energy, providing power for the subsequent reset of the locking block 319.

[0076] Also includes:

[0077] Two external pipes 40 are bolted to two connecting pipes 323.

[0078] The external pipe 40 is connected to the connecting pipe 323 by bolts to form a stable fluid channel, allowing external fluid to enter the connecting pipe 323 through the external pipe 40 and then flow into the self-cleaning mechanism 30 for filtration. The filtered fluid can also be transported to downstream equipment through the connecting pipe 323 and the external pipe 40. The bolt connection ensures the connection strength and sealing between the external pipe 40 and the connecting pipe 323, preventing fluid leakage at the connection.

[0079] Workflow

[0080] I. Normal Filtration Operation Process

[0081] Fluid access and flow: The external pipe 40 is connected to the connecting pipe 323 by bolts. The fluid enters the connecting pipe 323 from the external pipe 40 and then flows into the connecting cavity 305 of the outer fixed housing 301. The ball valve body 10 is connected to the self-cleaning mechanism 30 through the ball valve pipes 20 on both sides to form a complete fluid channel.

[0082] Impurity filtration: When the fluid flows through the filter screen body 314 inside the replaceable filter structure - mounting base 306 in the connecting cavity 305, the water flows through the filter screen body 314, and the impurities in the water are intercepted by the filter screen. The cleaned fluid enters the ball valve body 10 through the ball valve pipe 20 to achieve the filtration function.

[0083] Sealing guarantee: The mounting base 306 is inserted into the guide sealing groove 303 of the outer fixed housing 301 through the sealing plugs 307 on both sides, and the sealing gasket 304 is squeezed to form a seal; the sealing cover plate 302 is fixed to the top of the outer fixed housing 301 by bolts to further prevent fluid leakage and ensure that there is no leakage during the filtration process.

[0084] II. Filter Maintenance and Replacement Procedure

[0085] When the filter body 314 accumulates impurities and needs cleaning or replacement, the operating steps are as follows:

[0086] Open the maintenance channel: Remove the fixing bolts of the sealing cover 302, open the maintenance port on the top of the outer fixed housing 301, and lift the mounting base 306 through the handle 313 on the top of the mounting base 306.

[0087] Remove the replaceable filter structure: The mounting base 306 slides upward along the guide sealing groove 303 via the sealing plug 307 and is removed from the outer fixed housing 301, exposing the internal filter body 314.

[0088] Unlock the filter fixation:

[0089] Quick-release locking: Insert a tool into the flat end 312 and rotate the limiting locking post 310 to disengage the second thread 311 from the first thread 309 of the fixing hole 308. Remove the limiting locking post 310 to release the lock on the top of the filter body 314.

[0090] Quick-release locking: Move the lever 322 extending out of the through groove 321 to drive the locking block 319 and the sliding block 318 to slide along the sliding groove 317 into the mounting groove 316, compressing the spring 320, so that the locking block 319 exits from the locking groove 315 of the mounting base 306, releasing the lock on the lower part of the filter body 314.

[0091] Replace / clean the filter: Remove the filter body 314 from the mounting base 306 to clean or replace the filter.

[0092] Reinstall and secure:

[0093] Place the new filter: Place the cleaned or new filter body 314 into the mounting base 306, release the lever 322, and the spring 320 will return to push the locking block 319 into the locking groove 315 to complete the lower part fixing;

[0094] Top locking: Insert the limiting snap-fit ​​post 310 into the fixing hole 308, rotate the flat end 312 to make the second thread 311 engage with the first thread 309, and complete the fixing by the limiting snap-fit ​​post 310 abutting against the top of the filter screen.

[0095] Reset installation: Insert the mounting base 306 into the outer fixed housing 301 through the sealing plug 307 along the guide sealing groove 303, squeeze the sealing gasket 304 to ensure a seal, cover the sealing cover plate 302 and tighten the bolts to restore filter operation.

[0096] 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 ball valve with a self-cleaning function, characterized in that, include: Ball valve body (10); Two ball valve pipes (20) are fixedly installed on both sides of the ball valve body (10); Two self-cleaning mechanisms (30) are both located at the free ends of the two ball valve pipes (20). They include a fixed installation structure, a replaceable filter structure, two upper quick-release locking structures, two lower quick-release locking structures, and a connecting pipe (323). The fixed installation structure is located at the ball valve pipe (20) and is used to install the replaceable filter structure. The replaceable filter structure is used to filter and clean water. The two upper quick-release locking structures and the two lower quick-release locking structures are both located inside the replaceable filter structure and are used to separate the replaceable filter structure. The connecting pipe (323) is installed on the outside of the fixed installation structure.

2. The ball valve with self-cleaning function according to claim 1, characterized in that, The fixed installation structure includes: An outer fixed housing (301) is fixedly installed at the connection of the ball valve pipeline (20); The sealing cover (302) is bolted to the top of the outer fixed housing (301); Several guide sealing grooves (303) are all opened on the two side walls inside the outer fixed housing (301); Several sealing gaskets (304) are fixedly installed on the inner walls of several guide sealing grooves (303); A connecting cavity (305) is provided inside the outer fixed housing (301) for the passage of water and installation of a replaceable filter structure.

3. The ball valve with self-cleaning function according to claim 2, characterized in that, Replaceable filter structures include: Mounting bracket (306); Several sealing plug-in blocks (307) are fixedly connected to the two side walls of the mounting base (306) and are inserted into the guide sealing groove (303) for use; A handle (313) is provided at the center of the top of the mounting base (306) for lifting the mounting base (306). The filter body (314) is located inside the mounting base (306) for filtering water and is fixed inside the mounting base (306) by two upper quick-release locking structures and two lower quick-release locking structures.

4. The ball valve with self-cleaning function according to claim 3, characterized in that, The quick-release locking mechanism includes: A fixing hole (308) is formed inside the mounting base (306) and on the top of the filter body (314); The first thread (309) is formed on the inner wall of the fixing hole (308) of the mounting base (306) section; The limiting snap-fit ​​post (310) is inserted into the inside of the fixing hole (308), and its bottom abuts against the top of the filter body (314); The second thread (311) is formed on the outer wall of the limiting snap-fit ​​post (310) and is threadedly connected to the first thread (309); A flat opening (312) is provided on the top of the limit card connector (310) for use with an adapter to open the limit card connector (310).

5. The ball valve with self-cleaning function according to claim 4, characterized in that, The quick-release locking structure includes: A snap-fit ​​groove (315) is formed inside the side wall of the mounting base (306); The mounting groove (316) is formed inside the side wall of the filter body (314); Both sliding grooves (317) begin on the front and back sidewalls of the mounting groove (316); Both sliding blocks (318) are slidably connected inside the two sliding grooves (317); A snap-fit ​​block (319) is fixedly disposed between two sliding blocks (318); The spring (320) is fixedly installed inside the mounting groove (316), and one end is fixed to the snap-fit ​​block (319); The through groove (321) is formed on the outer wall of the filter body (314) and is connected to the mounting groove (316) inside; The toggle lever (322) is fixedly mounted on the front of the snap-fit ​​block (319) and located inside the through slot (321).

6. The ball valve with self-cleaning function according to claim 5, characterized in that, The mounting base (306) is inserted into the inside of the guide sealing groove (303) via a sealing plug (307), and the edge is pressed to seal the sealing gasket (304); Rotating the flat end (312) causes the second thread (311) of the limiting locking post (310) to be threaded into the first thread (309) of the fixing hole (308), thereby locking the top of the filter screen body (314); The lever (322) adopts a two-section structure and can extend out of the through groove (321) for easy pulling; When the lever (322) is pushed, the locking block (319) and the sliding block (318) slide in the sliding groove (317) and compress the spring (320).

7. The ball valve with self-cleaning function according to claim 6, characterized in that, Also includes: Two external pipes (40) are bolted to two connecting pipes (323).

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