Self-cleaning valve and method of use thereof

Abstract

The present invention discloses a self-cleaning valve and its use method, comprising a valve body, a filter screen connected to the valve body, a reciprocating screw rotatably connected to the valve body and arranged parallel to the filter screen, and a nut cooperating with the reciprocating screw; a scraper for cleaning the filter screen fixedly connected to the nut, the scraper being positioned between the nut and the filter screen and arranged in a vertical direction; and a slide rod slidably connected to the scraper along the length of the scraper, the slide rod being used to clean the scraper. The device is easy to operate and has a reasonable structure. It can automatically clean the filter screen in the valve body, automatically remove impurities in the valve, and has a self-cleaning function, which can effectively reduce the occurrence of valve blockage and effectively increase the service life of the valve.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a self-cleaning valve and a method for using the same. Background Art

[0002] Valves are control components in fluid conveying systems, performing functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. Valves used in fluid control systems come in a wide variety of types and specifications, from simple shutoff valves to highly complex automatic control systems. Valves can be used to control the flow of various fluids, including air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media. However, existing valves often contain impurities during use, as the fluids used in different applications often contain impurities. Existing valves typically use filters to filter the fluids. However, when the valve is used for a long time, the filter is difficult to clean, and the accumulation of impurities can cause valve clogging over time, shortening the valve's service life. Summary of the Invention

[0003] In order to solve the above problems in the prior art, a self-cleaning valve and a method of using the same are provided.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The present invention proposes a self-cleaning valve, comprising a valve body, a filter screen being connected to the valve body, a reciprocating screw being rotatably connected to the valve body and arranged parallel to the filter screen, and a nut being provided in conjunction with the reciprocating screw; a scraper for cleaning the filter screen being fixedly connected to the nut, the scraper being located between the nut and the filter screen, and being arranged in a vertical direction; a sliding rod being slidably connected to the scraper and sliding along the length direction of the scraper, and the sliding rod being used to clean the scraper.

[0006] Preferably, the valve body is provided with a slide groove, a slide shaft is movably provided in the slide groove, the slide rod is rotatably connected to the slide shaft, the slide rod is fixedly connected to a scraper arranged in an inclined direction, and the scraper is located on one side of the scraper.

[0007] Preferably, one end of the slide rod away from the scraper is fixedly connected to a fixed plate, the fixed plate is rotatably connected to a flip plate, and the flip plate is connected to the fixed plate via a second spring.

[0008] Preferably, the angle between the scraper and the fixed plate is an obtuse angle. In the initial state, under the action of the second spring, the angle between the flip plate and the fixed plate is an obtuse angle.

[0009] Preferably, the slide groove includes a horizontal groove, the horizontal groove and the reciprocating screw are arranged in parallel, and both ends of the horizontal groove are connected to inclined grooves respectively.

[0010] Preferably, the valve body is further connected to a collection box, and the valve body is further slidably connected to a slide plate, the slide plate is connected to the valve body via a first spring, and the slide plate is arranged on one side of the scraper.

[0011] Preferably, the collecting box is provided with a drop hole, and the slide plate is provided with a sliding hole. In an initial state, under the action of a first spring, the sliding hole and the drop hole are staggered.

[0012] Preferably, a water outlet and a water inlet are respectively provided at both ends of the valve body, the filter is arranged on the side close to the water outlet, an impeller is rotatably arranged in the water inlet, and the impeller is used to drive the reciprocating screw to rotate.

[0013] Preferably, the impeller is coaxially connected to the first gear, the reciprocating screw is coaxially connected to the third gear, the valve body is rotatably connected to the second gear, and both ends of the second gear are respectively engaged with the first gear and the third gear.

[0014] The present invention also provides a method for using a self-cleaning valve, which uses the above-mentioned self-cleaning valve and includes the following steps:

[0015] S1: Water flows from the water inlet into the water outlet. During the flow, the water is filtered by the filter. At the same time, the water drives the impeller to rotate, and the impeller drives the reciprocating screw to rotate.

[0016] S2: When the reciprocating screw rotates, the scraper is driven to reciprocate horizontally through the nut. The scraper cleans the surface of the filter screen. The scraper drives the slide bar to move. At this time, the slide bar drives the slide shaft to slide in the horizontal groove.

[0017] S3: When the slide shaft slides into the inclined groove, under the action of the inclined groove, the slide shaft slides along the inclined groove, thereby driving the slide rod to slide along the length direction of the scraper, and under the action of the scraper, the scraper surface is cleaned;

[0018] S4: As the slide rod moves, the flip plate contacts the inner wall of the valve body, driving the flip plate to rotate around the fixed plate, compressing the second spring. The flip plate and the scraper cooperate with each other, driving the impurities on one side of the scraper to move downward;

[0019] S5: When the scraper moves to one side of the slide, the scraper drives the slide to move, so that the sliding hole and the blanking hole are connected. The impurities in the valve body enter the collection box through the sliding hole and the blanking hole, thereby realizing the collection of impurities in the valve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention is provided with an impeller. When water flows through, the impeller can drive the reciprocating screw to rotate, and the scraper can be driven to reciprocate through the nut. The scraper can scrape the surface of the filter screen. At the same time, under the action of the slide groove, the scraper can be driven to move along the scraper surface, thereby cleaning the filter screen surface and the scraper surface. It is easy to operate and has a reasonable structure. It can automatically clean the filter screen in the valve body, so that impurities in the valve can be automatically removed. It has a self-cleaning function, can effectively reduce the occurrence of valve blockage, and effectively increase the service life of the valve.

[0022] 2. The present invention is provided with a flip plate. When the scraper moves along the scraper surface, the flip plate contacts the inner wall of the valve body. As the slide rod moves in the slide groove, the flip plate can rotate around the fixed plate. The flip plate and the scraper cooperate with each other to collect impurities on one side of the scraper. At the same time, the scraper can also drive the sliding plate to move to open the blanking hole. At this time, the collected impurities can fall into the collection box through the sliding hole and the blanking hole, realizing the automatic discharge of impurities and preventing impurities from accumulating in the valve and affecting the normal use of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0024] Figure 1 This is the overall front view of the present invention;

[0025] Figure 2 This is the overall main view of the present invention (in working state);

[0026] Figure 3 yes Figure 1 A magnified view of the structure of part A;

[0027] Figure 4 yes Figure 2 A magnified view of the structure of part B.

[0028] Description of the accompanying drawings:

[0029] 1 valve body; 2 impeller; 3 first gear; 4 second gear; 5 third gear; 6 reciprocating screw; 7 slide groove; 8 nut; 9 slide rod; 10 scraper; 11 scraper; 12 water inlet; 13 filter; 14 top block; 15 sliding hole; 16 first spring; 17 slide plate; 18 blanking hole; 19 collecting box; 20 water outlet; 21 fixed plate; 22 second spring; 23 flip plate. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] like Figure 1-4 As shown, this embodiment proposes a self-cleaning valve, including a valve body 1, a filter screen 13 connected to the valve body 1, a water outlet 20 and a water inlet 12 are respectively opened at both ends of the valve body 1, and the filter screen 13 is arranged on the side close to the water outlet 20.

[0032] The water flows through the water inlet 12 toward the water outlet 20 , and is filtered by the filter 13 . The filtered impurities are accumulated on one side of the filter 13 . The filter 13 is used to filter the impurities in the valve body 1 .

[0033] A reciprocating screw 6 arranged parallel to the filter screen 13 is rotatably connected inside the valve body 1, and a nut 8 is provided in conjunction with the reciprocating screw 6; the nut 8 is fixedly connected to a scraper 11 for cleaning the filter screen 13, and the scraper 11 is located between the nut 8 and the filter screen 13, and the scraper 11 is arranged in a vertical direction.

[0034] Both ends of the reciprocating screw 6 are rotatably connected to the valve body 1 through bearings. The reciprocating screw is a screw that can make the nut 8 reciprocate without changing the direction of rotation of the main shaft. Therefore, when the reciprocating screw 6 rotates, it can drive the nut 8 to reciprocate horizontally.

[0035] The bottom end of the scraper 11 is also fixedly connected to a scraping head, which can be made of rubber material to reduce damage to the filter 13. When the nut 8 moves, it can drive the scraper 11 to reciprocate horizontally, thereby cleaning the surface of the filter 13 and preventing impurities from clogging the filter 13.

[0036] When the scraper 11 moves, it can also drive the impurities in the valve body 1 to move. The length of the scraper 11 is long enough, so that the impurities in a larger area of ​​the valve body 1 can be cleaned at the same time.

[0037] An impeller 2 is rotatably provided in the water inlet 12 , and the impeller 2 is used to drive the reciprocating screw 6 to rotate. When water flows through, the impeller 2 can be driven to rotate, and the impeller 2 can drive the reciprocating screw 6 to rotate.

[0038] The two ends of the impeller 2 are rotatably connected to the valve body 1. The impeller 2 is coaxially connected to the first gear 3. The reciprocating screw 6 is coaxially connected to the third gear 5. The valve body 1 is rotatably connected to the second gear 4. The two ends of the second gear 4 are respectively engaged with the first gear 3 and the third gear 5.

[0039] The transmission of motion can be achieved by setting a plurality of gears. When the impeller 2 rotates, the reciprocating screw 6 can be driven to rotate through the gears.

[0040] The scraper 11 is slidably connected to a slide rod 9 that slides along the length direction of the scraper 11. The slide rod 9 is used to clean the scraper 11. There are two slide rods 9 in total, and the two slide rods 9 are symmetrically arranged on both sides of the scraper 11. The slide rod 9 and the scraper 11 are arranged vertically, and the slide rod 9 and the filter screen 13 are arranged parallel. The slide rod 9 can only slide along the length direction of the scraper 11.

[0041] The valve body 1 is provided with a slide groove 7, in which a slide shaft is movably provided, a slide rod 9 is rotatably connected to the slide shaft, and the slide rod 9 is fixedly connected with a scraper 10 arranged in an inclined direction. The scraper 10 is located on one side of the scraper 11, and the two scrapers 10 are symmetrically arranged on both sides of the scraper 11. The two scrapers 10 are respectively used to realize the cleaning work on both sides of the scraper 11.

[0042] One end of the slide bar 9 away from the scraper 11 is fixedly connected to a fixed plate 21 , and the fixed plate 21 is rotatably connected to a flip plate 23 . The flip plate 23 is connected to the fixed plate 21 through a second spring 22 , and the flip plate 23 can rotate freely around the fixed plate 21 .

[0043] The angle between the scraper 10 and the fixed plate 21 is an obtuse angle. In the initial state, under the action of the second spring 22, the angle between the flip plate 23 and the fixed plate 21 is an obtuse angle, as the scraper 11 moves.

[0044] When the flip plate 23 contacts the inner wall of the valve body 1, the flip plate 23 can be driven to rotate under the inner wall of the valve body 1. At this time, the flip plate 23 and the scraper 10 can cooperate to collect impurities and prevent impurities from flowing out from the side of the scraper 10. At the same time, since the flip plate 23 rotates inward, the impurities can also be moved inward, which is convenient for subsequent cleaning of impurities.

[0045] The slide 7 includes a horizontal groove, which is arranged parallel to the reciprocating screw 6. The two ends of the horizontal groove are respectively connected with an inclined groove. The length of the horizontal groove is long enough and the length of the horizontal groove is greater than the length of the filter 13. When moving in the horizontal groove, the scraper 11 moves horizontally to clean the filter 13. When moving in the inclined groove, the scraper 10 moves along the surface of the scraper 11 to clean the surface of the scraper 11.

[0046] The valve body 1 is also connected to a collection box 19, which is slidably connected to a slide 17. The slide 17 is connected to the valve body 1 via a first spring 16. The end of the slide 17 near the scraper 11 is fixedly connected to the top block 14. The slide 17 is arranged on one side of the scraper 11. The collection box 19 is also rotatably connected to a switch door. By opening the switch door, impurities in the collection box 19 can be cleaned.

[0047] As the scraper 11 moves, when the scraper 10 slides along the inclined groove and moves to the side of the collection box 19, the scraper 11 will contact the top block 14. As the scraper 11 continues to move, the slide plate 17 can be driven to move, so that the first spring 16 is compressed.

[0048] The collecting box 19 is provided with a drop hole 18, and the slide plate 17 is provided with a sliding hole 15. In the initial state, the sliding hole 15 and the drop hole 18 are offset under the action of the first spring 16. The first spring 16 is used for the reset work of the slide plate 17.

[0049] The present invention also provides a method for using a self-cleaning valve, which also includes the above-mentioned self-cleaning valve, comprising the following steps:

[0050] S1: Water flows from the water inlet 12 into the water outlet 20. During the flow, the water is filtered by the filter 13. At the same time, the water drives the impeller 2 to rotate, and the impeller 2 drives the reciprocating screw 6 to rotate.

[0051] S2: When the reciprocating screw 6 rotates, the scraper 11 is driven to reciprocate horizontally through the nut 8. The scraper 11 cleans the surface of the filter 13. The scraper 11 drives the slide bar 9 to move. At this time, the slide bar 9 drives the slide shaft to slide in the horizontal groove.

[0052] S3: When the slide shaft slides into the inclined groove, under the action of the inclined groove, the slide shaft slides along the inclined groove, thereby driving the slide rod 9 to slide along the length direction of the scraper 11, and under the action of the scraper 10, the surface of the scraper 11 is cleaned;

[0053] S4: As the slide rod 9 moves, the flip plate 23 contacts the inner wall of the valve body 1, driving the flip plate 23 to rotate around the fixed plate 21, compressing the second spring 22. The flip plate 23 and the scraper 10 cooperate with each other, driving the impurities on one side of the scraper 11 to move downward;

[0054] S5: When the scraper 10 moves to the side of the slide 17, the scraper 11 drives the slide 17 to move, so that the sliding hole 15 and the blanking hole 18 are connected, and the impurities in the valve body 1 enter the collection box 19 through the sliding hole 15 and the blanking hole 18, thereby realizing the collection of impurities in the valve.

[0055] It should be noted that when water flows through, the impeller 2 can drive the reciprocating screw 6 to rotate, and can drive the scraper 11 to reciprocate through the nut 8. The scraper 11 can scrape the surface of the filter screen 13. At the same time, under the action of the slide groove 7, the scraper 10 can be driven to move along the surface of the scraper 11, so that the surface of the filter screen 13 and the surface of the scraper 11 can be cleaned. It is easy to operate and has a reasonable structure. It can automatically clean the filter screen 13 in the valve body 1, so that impurities in the valve can be automatically removed. It has a self-cleaning function, which can effectively reduce the occurrence of valve blockage and effectively improve the service life of the valve.

[0056] In addition, when the scraper 10 moves along the surface of the scraper 11, after the flip plate 23 contacts the inner wall of the valve body 1, as the slide rod 9 moves in the slide groove 7, the flip plate 23 can rotate around the fixed plate 21, and the flip plate 23 and the scraper 10 cooperate with each other to realize the collection of impurities on one side of the scraper 11. At the same time, the scraper 11 can also drive the sliding plate 17 to move to open the drop hole 18. At this time, the collected impurities can fall into the collection box 19 through the sliding hole 15 and the drop hole 18, realizing the automatic discharge of impurities and preventing impurities from accumulating in the valve and affecting the normal use of the valve.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A self-cleaning valve, comprising a valve body (1), characterized in that: The valve body (1) is connected to a filter screen (13), and a reciprocating screw (6) arranged parallel to the filter screen (13) is rotatably connected to the valve body (1), and the reciprocating screw (6) is provided with a nut (8) in cooperation with the nut (8); the nut (8) is fixedly connected to a scraper (11) for cleaning the filter screen (13), and the scraper (11) is located between the nut (8) and the filter screen (13), and the scraper (11) is arranged in a vertical direction; the scraper (11) is slidably connected to a slide rod (9) that slides along the length direction of the scraper (11), and the slide rod (9) is used to clean the scraper (11); The valve body (1) is provided with a slide groove (7), a slide shaft is movably provided in the slide groove (7), the slide rod (9) is rotatably connected to the slide shaft, the slide rod (9) is fixedly connected to a scraper (10) arranged in an inclined direction, and the scraper (10) is located on one side of the scraper (11); One end of the slide bar (9) away from the scraper (11) is fixedly connected to a fixed plate (21), and the fixed plate (21) is rotatably connected to a flip plate (23), and the flip plate (23) is connected to the fixed plate (21) via a second spring (22); The angle between the scraper (10) and the fixed plate (21) is an obtuse angle. In the initial state, under the action of the second spring (22), the angle between the flip plate (23) and the fixed plate (21) is an obtuse angle. The slide groove (7) includes a horizontal groove, the horizontal groove and the reciprocating screw (6) are arranged in parallel, and both ends of the horizontal groove are connected to inclined grooves; When the slide shaft slides into the inclined groove, under the action of the inclined groove, the slide shaft slides along the inclined groove, thereby driving the slide rod (9) to slide along the length direction of the scraper (11), and under the action of the scraper (10), the surface of the scraper (11) is cleaned.

2. A self-cleaning valve according to claim 1, characterized in that: The valve body (1) is also connected to a collecting box (19), and the valve body (1) is also slidably connected to a slide plate (17). The slide plate (17) is connected to the valve body (1) via a first spring (16), and the slide plate (17) is arranged on one side of the scraper (11).

3. A self-cleaning valve according to claim 2, characterized in that: The collecting box (19) is provided with a drop hole (18), and the slide plate (17) is provided with a sliding hole (15). In an initial state, under the action of a first spring (16), the sliding hole (15) and the drop hole (18) are offset.

4. A self-cleaning valve according to claim 3, characterized in that: The valve body (1) is provided with a water outlet (20) and a water inlet (12) at both ends, respectively. The filter screen (13) is provided on a side close to the water outlet (20). An impeller (2) is rotatably provided in the water inlet (12). The impeller (2) is used to drive the reciprocating screw (6) to rotate.

5. A self-cleaning valve according to claim 4, characterized in that: The impeller (2) is coaxially connected to the first gear (3), the reciprocating screw (6) is coaxially connected to the third gear (5), the valve body (1) is rotatably connected to the second gear (4), and the two ends of the second gear (4) are respectively meshed with the first gear (3) and the third gear (5).

6. A method for using a self-cleaning valve, characterized in that: The self-cleaning valve according to claim 5 comprises the following steps: S1: Water flows from the water inlet (12) into the water outlet (20). During the flow, the water is filtered by the filter (13). At the same time, the water drives the impeller (2) to rotate, and the impeller (2) drives the reciprocating screw (6) to rotate. S2: When the reciprocating screw (6) rotates, the scraper (11) is driven to reciprocate in the horizontal direction through the nut (8), and the scraper (11) cleans the surface of the filter (13). The scraper (11) drives the slide rod (9) to move, and the slide rod (9) drives the slide shaft to slide in the horizontal groove; S3: When the slide shaft slides into the inclined groove, under the action of the inclined groove, the slide shaft slides along the inclined groove, thereby driving the slide rod (9) to slide along the length direction of the scraper (11), and under the action of the scraper (10), the surface of the scraper (11) is cleaned; S4: As the slide bar (9) moves, the flip plate (23) contacts the inner wall of the valve body (1), driving the flip plate (23) to rotate around the fixed plate (21), causing the second spring (22) to compress, and the flip plate (23) and the scraper (10) to cooperate with each other, driving the impurities on one side of the scraper (11) to move downward; S5: When the scraper (10) moves to the side of the slide plate (17), the scraper (11) drives the slide plate (17) to move, so that the sliding hole (15) and the drop hole (18) are connected, and the impurities in the valve body (1) enter the collection box (19) through the sliding hole (15) and the drop hole (18), thereby realizing the collection of impurities in the valve.

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