Butterfly valve with self-cleaning function

Abstract

The utility model discloses a butterfly valve with a self-cleaning function, which comprises a fixed pipe, a fixed valve is rotatably mounted in the fixed pipe, and the top end of the fixed valve is fixedly connected with an adjusting shaft; the cleaning structure comprises a fixing shaft installed on the side wall of the fixing valve through a transmission structure, the fixing shaft is slidably sleeved with a fixing block, the fixing block is rotationally connected with the side wall of the fixing valve, the side wall of the fixing block is rotationally connected with a connecting shaft, and the side wall of the connecting shaft is fixedly connected with a fixing plate. And a fixed scraping plate is mounted on the fixed plate in a sliding manner through a fixed spring. When the butterfly valve is rotated, the fixed scraping plate can rotate to clean the surface of the butterfly valve, meanwhile, the fixed scraping plate can swing to further scrape the surface of the butterfly valve, the cleaning capacity of the device is improved, cleaned sundries can flow away along with water flow, and therefore the butterfly valve is neater, and use of the butterfly valve is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid control equipment field especially relates to a butterfly valve with self -cleaning function. BACKGROUND

[0002] Butterfly valve is a kind of throttle valve, is an important device in water supply and drainage pipeline system, can be used to control the flow of air, water, steam, various corrosive media, slurry, oil, liquid metal and radioactive medium etc.

[0003] The existing butterfly valve lacks self-cleaning ability, so after long-time use of butterfly valve, more sundries will accumulate on the butterfly valve, which makes the opening and closing of the butterfly valve more difficult, and also affects the sealing effect of the butterfly valve, which is not conducive to its use. UTILITY MODEL CONTENT

[0004] The utility model discloses a butterfly valve with self-cleaning function, which can clean the sundries accumulated on the butterfly valve, so that the opening and closing of the butterfly valve are facilitated, and the sealing effect of the butterfly valve is improved.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A butterfly valve with self-cleaning function, comprising:

[0007] A fixed pipe is internally rotatably installed with a fixed valve, and the top end of the fixed valve is fixedly connected with an adjusting shaft.

[0008] A cleaning structure is installed on the side wall of the fixed valve through a transmission structure, and the fixed shaft is slidably sleeved with a fixed block, and the fixed block is rotatably connected with the side wall of the fixed valve.

[0009] Preferably, the transmission structure includes an adjustment chamber inside the fixed valve, a rotating rod rotatably connected to the upper inner wall of the adjustment chamber, and the rotating rod passing through the inner wall of the fixed valve and the fixed pipe for fixed connection. An adjustment rod is also rotatably connected to the upper inner wall of the adjustment chamber. The adjustment rod and the rotating rod are connected by a belt transmission assembly. A fixed shaft passes through the inner wall of the adjustment chamber and is slidably sleeved with a fixed worm gear. A fixed worm gear that meshes with the fixed worm gear is fixedly installed on the adjustment rod.

[0010] Preferably, an adjusting cylinder is rotatably connected to the inner wall of the adjusting cavity, the inner wall of the adjusting cylinder has a reciprocating spiral groove, and a sliding block corresponding to the reciprocating spiral groove is fixedly connected to the side wall of the fixed shaft.

[0011] Preferably, fixing flanges are fixedly installed on both side walls of the fixing pipe.

[0012] Preferably, a rubber sealing layer is fixedly sleeved on the side wall of the fixed valve.

[0013] Preferably, a rotating handle is fixedly installed at the top end of the adjusting shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are: when the butterfly valve is rotated, the fixed scraper will rotate to clean the surface of the butterfly valve. At the same time, the fixed scraper will swing to further scrape the surface of the butterfly valve, which improves the cleaning ability of the device. The debris that is cleaned will be washed away with the water flow, making the butterfly valve cleaner and more conducive to its use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a butterfly valve with self-cleaning function proposed in this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a cross-sectional three-dimensional structural diagram of a butterfly valve with self-cleaning function proposed in this utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0019] In the diagram: 1. Fixed pipe, 2. Fixed valve, 3. Adjusting shaft, 4. Fixed plate, 5. Fixed scraper, 6. Fixed block, 7. Fixed shaft, 8. Moving groove, 9. Connecting shaft, 10. Connecting disc, 11. Connecting rod, 12. Adjusting cavity, 13. Adjusting rod, 14. Rotating rod, 15. Belt drive assembly, 16. Fixed worm gear, 17. Fixed worm wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A butterfly valve with self-cleaning function, comprising:

[0022] Fixed pipe 1, fixed valve 2 is rotatably installed inside fixed pipe 1, and adjusting shaft 3 is fixedly connected to the top of fixed valve 2. Rotating adjusting shaft 3 can make fixed valve 2 rotate.

[0023] The cleaning structure includes a fixed shaft 7 mounted on the side wall of the fixed valve 2 via a transmission structure. A fixed block 6 is slidably sleeved on the fixed shaft 7, and the fixed block 6 is rotatably connected to the side wall of the fixed valve 2. A connecting shaft 9 is rotatably connected to the side wall of the fixed block 6. A fixed plate 4 is fixedly connected to the side wall of the connecting shaft 9. A fixed scraper 5 is slidably mounted on the fixed plate 4 via a fixed spring, and the fixed scraper 5 is in close contact with the surface of the fixed valve 2. A connecting plate 10 is fixedly connected to one end of the connecting shaft 9 located inside the fixed block 6. A movable groove 8 is opened on the fixed shaft 7. A connecting rod 11 is rotatably connected between the connecting plates 10, and the connecting rod 11 passes through the movable groove 8.

[0024] Rotating the adjusting shaft 3 causes the fixed shaft 7 to rotate under the action of the transmission structure, which in turn causes the fixed block 6, connecting shaft 9, fixed plate 4, and fixed scraper 5 to rotate, scraping and cleaning the surface of the fixed valve 2. At the same time, the fixed shaft 7 moves back and forth during rotation, while the fixed block 6 does not move. Therefore, the movement of the fixed shaft 7 will push the connecting rod 11 to move, causing the connecting plate 10 to rotate back and forth, which in turn causes the connecting shaft 9, fixed plate 4, and fixed scraper 5 to rotate back and forth. With the help of the fixed spring, the fixed scraper 5 performs a swinging scraping motion on the surface of the fixed valve 2, improving the cleaning effect.

[0025] The transmission structure includes an adjustment chamber 12 inside the fixed valve 2. A rotating rod 14 is rotatably connected to the upper inner wall of the adjustment chamber 12, and the rotating rod 14 passes through the inner wall of the fixed valve 2 and is fixedly connected to the fixed pipe 1. An adjustment rod 13 is also rotatably connected to the upper inner wall of the adjustment chamber 12. The adjustment rod 13 and the rotating rod 14 are connected by a belt drive assembly 15. A fixed shaft 7 passes through the inner wall of the adjustment chamber 12 and is slidably sleeved with a fixed worm gear 17. A fixed worm 16 that meshes with the fixed worm gear 17 is fixedly installed on the adjustment rod 13. The fixed worm gear 17 and the fixed worm 16 are specially made products. The materials of the fixed worm gear 17 and the fixed worm 16 are different from those of conventional products. Therefore, the fixed worm gear 17 can drive the fixed worm 16 to rotate.

[0026] When the fixed valve 2 rotates, the rotating rod 14 remains stationary, while the adjusting rod 13 rotates with the fixed valve 2. Therefore, there will be relative rotation between the adjusting rod 13 and the rotating rod 14. Under the action of the belt drive assembly 15, the adjusting rod 13 rotates, which drives the fixed worm wheel 17 to rotate, causing the fixed worm 16 to rotate as well.

[0027] An adjusting cylinder is rotatably connected to the inner wall of the adjusting cavity 12. The inner wall of the adjusting cylinder has a reciprocating spiral groove. A sliding block corresponding to the reciprocating spiral groove is fixedly connected to the side wall of the fixed shaft 7. When the fixed shaft 7 rotates, it will move back and forth under the action of the reciprocating spiral groove.

[0028] Fixed flanges are fixedly installed on both sides of the fixed pipe 1, which facilitates the installation of the device; a rubber sealing layer is fixedly sleeved on the side wall of the fixed valve 2, which improves the sealing performance of the device; a rotating handle is fixedly installed at the top of the adjusting shaft 3, which facilitates the rotation of the adjusting shaft 3.

[0029] In this invention, during use, rotating the adjusting shaft 3 causes the fixed valve 2 to rotate. While the fixed valve 2 rotates, the rotating rod 14 remains stationary, while the adjusting rod 13 rotates with the fixed valve 2. Therefore, there is relative rotation between the adjusting rod 13 and the rotating rod 14. Under the action of the belt drive assembly 15, the adjusting rod 13 rotates, causing the fixed worm gear 17 to rotate, which in turn causes the fixed worm gear 16 to rotate, thus rotating the fixed shaft 7. This, in turn, causes the fixed block 6, connecting shaft 9, fixed plate 4, and fixed scraper 5 to rotate, thus rotating the surface of the fixed valve 2. During the scraping and cleaning process, as the fixed shaft 7 rotates, it moves back and forth under the action of the reciprocating spiral groove, while the fixed block 6 does not move. Therefore, the movement of the fixed shaft 7 will push the connecting rod 11 to move, causing the connecting plate 10 to rotate back and forth. This causes the connecting shaft 9, the fixed plate 4, and the fixed scraper 5 to also rotate back and forth. In conjunction with the fixed spring, the fixed scraper 5 performs a swinging scraping motion on the surface of the fixed valve 2, improving the cleaning effect. Moreover, the fixed valve 2 will open after rotation, allowing water to flow through and wash away the scraped debris.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A butterfly valve with a self-cleaning function, characterized in that, include: A fixed pipe (1) is provided, and a fixed valve (2) is rotatably installed inside the fixed pipe (1). An adjusting shaft (3) is fixedly connected to the top of the fixed valve (2). The cleaning structure includes a fixed shaft (7) mounted on the side wall of a fixed valve (2) via a transmission structure. A fixed block (6) is slidably sleeved on the fixed shaft (7), and the fixed block (6) is rotatably connected to the side wall of the fixed valve (2). A connecting shaft (9) is rotatably connected to the side wall of the fixed block (6). A fixed plate (4) is fixedly connected to the side wall of the connecting shaft (9). A fixed scraper (5) is slidably mounted on the fixed plate (4) via a fixed spring, and the fixed scraper (5) is in close contact with the surface of the fixed valve (2). A connecting disc (10) is fixedly connected to one end of the connecting shaft (9) located inside the fixed block (6). A moving groove (8) is opened on the fixed shaft (7). A connecting rod (11) is rotatably connected between the connecting discs (10), and the connecting rod (11) passes through the moving groove (8).

2. A butterfly valve with self-cleaning function according to claim 1, characterized in that, The transmission structure includes an adjustment chamber (12) inside the fixed valve (2). A rotating rod (14) is rotatably connected to the upper inner wall of the adjustment chamber (12). The rotating rod (14) passes through the inner wall of the fixed valve (2) and is fixedly connected to the inner wall of the fixed pipe (1). An adjustment rod (13) is also rotatably connected to the upper inner wall of the adjustment chamber (12). The adjustment rod (13) and the rotating rod (14) are connected by a belt drive assembly (15). The fixed shaft (7) passes through the inner wall of the adjustment chamber (12) and is slidably sleeved with a fixed worm gear (17). A fixed worm (16) that meshes with the fixed worm gear (17) is fixedly installed on the adjustment rod (13).

3. A butterfly valve with self-cleaning function according to claim 2, characterized in that, An adjusting cylinder is rotatably connected to the inner wall of the adjusting cavity (12). The inner wall of the adjusting cylinder has a reciprocating spiral groove. A sliding block corresponding to the reciprocating spiral groove is fixedly connected to the side wall of the fixed shaft (7).

4. A butterfly valve with self-cleaning function according to claim 1, characterized in that, Fixed flanges are fixedly installed on both sides of the fixed pipe (1).

5. A butterfly valve with self-cleaning function according to claim 1, characterized in that, The side wall of the fixed valve (2) is fixedly fitted with a rubber sealing layer.

6. A butterfly valve with self-cleaning function according to claim 1, characterized in that, A rotating handle is fixedly installed at the top of the adjusting shaft (3).

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