Anti-blocking flange butterfly valve

Abstract

The utility model relates to the technical field of flange butterfly valves, and provides an anti-blocking flange butterfly valve which comprises a valve body, flange plates are fixedly connected to the two ends of the valve body respectively, a valve seat is arranged on one side of the outer portion of the valve body, a butterfly rod is fixedly connected to the bottom of the valve seat, a butterfly plate is fixedly connected to the outer portion of the butterfly rod, and a supporting plate is arranged in the valve body. Three supporting rods are fixedly connected to the exterior of the supporting plate, a rotating rod is rotatably connected to the interior of the supporting plate, a hollow rod is fixedly connected to the exterior of the rotating rod, a plurality of turbine blades are fixedly connected to the exterior of the hollow rod, a connecting rod is fixedly connected to one end of the rotating rod, and three first scraping plates are fixedly connected to the exterior of the connecting rod; and a filter screen disc is fixedly connected to the interior of the valve body. By means of the technical scheme, the problems that in the prior art, in the long-time using process of a traditional butterfly valve, a large number of impurities are attached to the interior of the valve body, the valve body is blocked, and using is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange butterfly valves, and in particular to an anti-clogging flange butterfly valve. Background Art

[0002] The butterfly valve has a simple structure, small size, light weight, and is composed of only a few parts. It can be quickly opened and closed by rotating 90°, which is easy to operate. At the same time, the valve has good fluid control characteristics. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open. When the flange butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated by the valve is very small, so it has good flow control characteristics. The butterfly valve has two sealing types: elastic sealing and metal sealing. For elastic sealing valves, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate.

[0003] The patent specification with announcement number CN215487699U discloses a flange-type butterfly valve, including a connecting pipe, a fixing ring, a rotating structure, a clamping structure, an outer shell and a sealing structure. Two fixing rings are fixedly connected to the outer wall of the connecting pipe, and a plurality of threaded holes are equidistantly provided on the fixing ring. A sealing structure is provided inside the connecting pipe, and the top outer wall of the connecting pipe is fixedly connected to a supporting pipe, and the top of the supporting pipe is fixedly connected to the outer shell, and the top outer wall of the outer shell is fixedly connected to four fixing blocks.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: during the long-term use of the above device, because there is water flowing inside the valve body, and the water contains a large amount of impurities, they will adhere to the valve body when passing through it. In the long run, it will cause the valve body to be blocked, affecting its use. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model provides an anti-clogging flange butterfly valve, which solves the problem that a large amount of impurities will adhere to the inside of the valve body of a traditional butterfly valve established in the relevant technology during long-term use, causing the valve body to be blocked and affecting the use.

[0006] The technical solution of the utility model is as follows:

[0007] A kind of anti-clogging flange butterfly valve comprises a valve body, both ends of the valve body are fixedly connected with flange plates, a valve seat is provided on one side of the outside of the valve body, a butterfly rod is fixedly connected with the bottom of the valve seat, a butterfly plate is fixedly connected with the outside of the butterfly rod, a support plate is provided inside the valve body, three support rods are fixedly connected with the outside of the support plate, a rotating rod is rotatably connected inside the support plate, a hollow rod is fixedly connected with the outside of the rotating rod, a plurality of turbine blades are fixedly connected with the outside of the hollow rod, a connecting rod is fixedly connected with one end of the rotating rod, three scrapers are fixedly connected with the outside of the connecting rod, and a filter mesh is fixedly connected inside the valve body.

[0008] Preferably, the three support rods are respectively fixedly connected to the inner cavity wall of the valve body, and the three support rods are distributed in a circular shape.

[0009] Preferably, the rotating rod extends to one end of the support plate and is fixedly connected to the hollow rod, and the rotating rod extends to the other end of the support plate and is fixedly connected to the connecting rod.

[0010] Preferably, the scraper plate 1 is in contact with the filter screen, and one end of the connecting rod is movably connected to the filter screen via a rotating shaft.

[0011] Preferably, one end of the connecting rod is fixedly connected to a disc, and the connecting rod extends through the interior of the filter mesh disc to the exterior side of the filter mesh disc.

[0012] Preferably, a fixing plate is fixedly connected to the outside of the disc, and a brush is fixedly connected to the bottom of the fixing plate.

[0013] Preferably, a long plate is fixedly connected to one side of the filter screen disc, and a second scraper is fixedly connected to the top of the long plate.

[0014] Preferably, the brush is in contact with the filter screen, and the brush is in contact with the second scraper.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, the hollow rod is rotated to drive the rotating rod to rotate, the rotating rod is rotated to drive the connection to rotate, the connection rod is rotated to drive the scraper plate to rotate, the scraper plate is rotated to contact the surface of the filter screen, and the scraper plate can clean the impurities filtered on the surface of the filter screen, thereby preventing the filter screen from being blocked during long-term use, and then causing the valve body to be blocked, which solves the problem that a large amount of impurities will adhere to the valve body of the traditional butterfly valve during long-term use, causing the valve body to be blocked and affecting the use.

[0017] In the utility model, as the brush rotates, it will continuously contact the other side of the filter screen, and the brush can clean the impurities attached to the other side of the filter screen. When the brush rotates until it contacts the scraper, the impurities attached to the surface of the brush will be cleaned by the scraper. At this time, the brush can clean the other side of the filter screen more efficiently. Through the above work, both sides of the filter screen can be cleaned at the same time, thereby better preventing the blockage of the valve body, and solving the problem that a large amount of impurities will be attached to the inside of the valve body of the traditional butterfly valve during long-term use, causing the valve body to be blocked, affecting the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 It is a partial structural cross-sectional schematic diagram of the utility model;

[0022] Figure 4 It is a partial structure diagram of the utility model Figure 1 ;

[0023] Figure 5 It is a partial structure diagram of the utility model Figure 2 .

[0024] In the figure: 1. valve body; 2. flange; 3. valve seat; 4. butterfly rod; 5. butterfly plate; 6. support plate; 7. support rod; 8. rotating rod; 9. hollow rod; 10. turbine blade; 11. connecting rod; 12. scraper 1; 13. filter screen; 14. disc; 15. fixed plate; 16. brush; 17. long plate; 18. scraper 2. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] like Figure 1~Figure 4As shown, this embodiment proposes an anti-clogging flange butterfly valve, including a valve body 1, both ends of the valve body 1 are fixedly connected to flange plates 2, a valve seat 3 is provided on one side of the outside of the valve body 1, a butterfly rod 4 is fixedly connected to the bottom of the valve seat 3, a butterfly plate 5 is fixedly connected to the outside of the butterfly rod 4, a support plate 6 is provided inside the valve body 1, three support rods 7 are fixedly connected to the outside of the support plate 6, a rotating rod 8 is rotatably connected inside the support plate 6, a hollow rod 9 is fixedly connected to the outside of the rotating rod 8, a plurality of turbine blades 10 are fixedly connected to the outside of the hollow rod 9, a connecting rod 11 is fixedly connected to one end of the rotating rod 8, three scrapers 12 are fixedly connected to the outside of the connecting rod 11, and a filter mesh plate 13 is fixedly connected to the inside of the valve body 1.

[0027] In this embodiment, the three support rods 7 are respectively fixedly connected to the inner wall of the valve body 1 , and the three support rods 7 are arranged in a circular distribution, which can facilitate fixing the support plate 6 inside the valve body 1 .

[0028] In this embodiment, the rotating rod 8 extends to one end of the support plate 6 and is fixedly connected to the hollow rod 9, and the rotating rod 8 extends to the other end of the support plate 6 and is fixedly connected to the connecting rod 11, which can facilitate the rotation of the rotating rod 8 while driving the hollow rod 9 and the connecting rod 11 to rotate.

[0029] In this embodiment, the scraper 12 is in contact with the filter screen 13, and one end of the connecting rod 11 is movably connected to the filter screen 13 via a rotating shaft, so that the scraper 12 can clean the impurities filtered by the filter screen 13.

[0030] When it is necessary to open the valve, the staff first operates the valve seat 3 to drive the butterfly rod 4 to rotate. The rotation of the butterfly rod 4 will drive the butterfly plate 5 to rotate. When the butterfly plate 5 rotates to an angle of 90 degrees, water will flow inside the valve body 1. When water flows inside the valve body 1, the pressure of the water on the turbine blades 10 will drive the turbine blades 10 to rotate. The rotation of the turbine blades 10 will drive the hollow rod 9 to rotate. The rotation of the hollow rod 9 will drive the rotating rod 8 to rotate. The rotation of the rotating rod 8 will drive the connecting rod 11 to rotate. The rotation of the connecting rod 11 will drive the scraper 12 to rotate. The scraper 12 will contact the surface of the filter mesh disk 13 when it rotates. At this time, the scraper 12 can clean the impurities filtered on the surface of the filter mesh disk 13, thereby preventing the filter mesh disk 13 from being blocked during long-term use, which in turn causes blockage inside the valve body 1. Example 2

[0031] like Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that a disc 14 is fixedly connected to one end of the connecting rod 11, and the connecting rod 11 extends through the interior of the filter mesh disc 13 to the external side of the filter mesh disc 13, which can facilitate the rotation of the connecting rod 11 and drive the disc 14 to rotate at the same time.

[0032] In this embodiment, a fixing plate 15 is fixedly connected to the outside of the disc 14 , and a brush 16 is fixedly connected to the bottom of the fixing plate 15 , so that the fixing plate 15 can be driven to rotate while the disc 14 rotates.

[0033] In this embodiment, a long plate 17 is fixedly connected to one side of the filter screen plate 13 , and a second scraper 18 is fixedly connected to the top of the long plate 17 , so that the second scraper 18 can clean the impurities attached to the surface of the brush 16 .

[0034] In this embodiment, the brush 16 is in contact with the filter screen plate 13 , and the brush 16 is in contact with the scraper 2 18 , so that the brush 16 can clean the impurities attached to the surface of the filter screen plate 13 .

[0035] When in use, the staff first operates the valve seat 3 to drive the butterfly rod 4 to rotate. The butterfly rod 4 rotates and the butterfly plate 5 rotates. When the butterfly plate 5 rotates to an angle of 90 degrees, water will flow inside the valve body 1. When the water flows inside the valve body 1, the pressure of the water on the turbine blades 10 will drive the turbine blades 10 to rotate. When the turbine blades 10 rotate, the hollow rod 9 will be driven to rotate. When the hollow rod 9 rotates, the rotating rod 8 will be driven to rotate. When the rotating rod 8 rotates, the connecting rod 11 will be driven to rotate. When the connecting rod 11 rotates, the disc 14 will be driven to rotate. When the disc 14 rotates, The movable fixed plate 15 rotates, and the fixed plate 15 rotates, while driving the brush 16 to rotate. While the brush 16 rotates, it will continuously contact the other side of the filter mesh plate 13. At this time, the brush 16 can clean the impurities attached to the other side of the filter mesh plate 13. When the brush 16 rotates to contact the scraper 18, the impurities attached to the surface of the brush 16 will be cleaned by the scraper 18. At this time, the brush 16 can clean the other side of the filter mesh plate 13 more efficiently. Through the above work, both sides of the filter mesh plate 13 can be cleaned at the same time, thereby better preventing the blockage of the inside of the valve body 1.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-clogging flange butterfly valve, comprising a valve body (1), characterized in that: Both ends of the valve body (1) are fixedly connected to flanges (2); a valve seat (3) is provided on one side of the outside of the valve body (1); a butterfly rod (4) is fixedly connected to the bottom of the valve seat (3); a butterfly plate (5) is fixedly connected to the outside of the butterfly rod (4); a support plate (6) is provided inside the valve body (1); three support rods (7) are fixedly connected to the outside of the support plate (6); a rotating rod (8) is rotatably connected to the inside of the support plate (6); a hollow rod (9) is fixedly connected to the outside of the rotating rod (8); a plurality of turbine blades (10) are fixedly connected to the outside of the hollow rod (9); a connecting rod (11) is fixedly connected to one end of the rotating rod (8); three scrapers (12) are fixedly connected to the outside of the connecting rod (11); and a filter screen (13) is fixedly connected to the inside of the valve body (1).

2. The anti-clogging flange butterfly valve according to claim 1 is characterized in that: The three support rods (7) are respectively fixedly connected to the inner cavity wall of the valve body (1), and the three support rods (7) are arranged in a circumferential distribution.

3. The anti-clogging flange butterfly valve according to claim 1, characterized in that: The rotating rod (8) extends to one end of the support plate (6) and is fixedly connected to the hollow rod (9), and the rotating rod (8) extends to the other end of the support plate (6) and is fixedly connected to the connecting rod (11).

4. The anti-clogging flange butterfly valve according to claim 1, characterized in that: The scraper plate 1 (12) is in contact with the filter screen plate (13), and one end of the connecting rod (11) is movably connected to the filter screen plate (13) via a rotating shaft.

5. The anti-clogging flange butterfly valve according to claim 4, characterized in that: One end of the connecting rod (11) is fixedly connected to a disc (14), and the connecting rod (11) extends through the interior of the filter screen disc (13) to the exterior side of the filter screen disc (13).

6. The anti-clogging flange butterfly valve according to claim 5, characterized in that: A fixing plate (15) is fixedly connected to the outside of the disc (14), and a brush (16) is fixedly connected to the bottom of the fixing plate (15).

7. The anti-clogging flange butterfly valve according to claim 6, characterized in that: A long plate (17) is fixedly connected to one side of the filter screen plate (13), and a second scraper plate (18) is fixedly connected to the top of the long plate (17).

8. The anti-clogging flange butterfly valve according to claim 7, characterized in that: The brush (16) is in contact with the filter screen plate (13), and the brush (16) is in contact with the second scraper (18).

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