Eccentric butterfly valve with anti-blocking function

Abstract

The utility model relates to the field of valves, in particular to an eccentric butterfly valve with an anti-blocking function, which comprises a butterfly valve body, one side of the butterfly valve body is connected with a pipe body, one side in the pipe body is fixedly connected with a partition plate, the partition plate is provided with a communication port, and one side of the partition plate is symmetrically and slidably connected with baffles on the upper side and the lower side of the communication port. And a connecting rod is connected between the front and back baffles. The filter screen is designed to be located on the front side of the butterfly valve body, impurities in water are filtered through the filter screen, the impurities are prevented from being gathered in the valve body, meanwhile, the filter screen is limited through the limiting plugs, and the filter screen is convenient to replace. According to the butterfly valve, the sealing plate is designed, the drain outlet is isolated through descending of the sealing plate, impurities in the drain outlet can be discharged, meanwhile, the baffles can be closed through ascending of the sealing plate, so that the communicating opening is blocked, and after a user disassembles the butterfly valve body, the filter screen can be replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the valve field, concretely relates to an eccentric butterfly valve with anti -blocking function. BACKGROUND

[0002] The eccentric butterfly valve is a commonly used industrial valve, is mainly used for controlling the flow of fluid in the pipeline, compares to the traditional center symmetry structure's butterfly valve, the eccentric butterfly valve is more reasonable on the design, that is, the valve body and the valve rod axis exist eccentric distance, thereby reduces the friction and vibration when the valve disc moves, improves the service life of the valve disc.

[0003] However, the fluid in the pipeline contains more impurities, so the staff needs to disassemble and clean the eccentric butterfly valve regularly, otherwise the impurities in the fluid are easy to gather in the eccentric butterfly valve, influence the subsequent valve disc opening and closing. Therefore, the technical personnel in the art provide an eccentric butterfly valve with anti-blocking function to solve the problems raised in the above background technology. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides an eccentric butterfly valve with anti-blocking function, including butterfly valve body, the one side of butterfly valve body is connected with pipe body, one side fixedly connected with baffle in pipe body interior, the baffle is equipped with the baffle that slides in the upper and lower side symmetry of the communication port, and the baffle is connected with connecting rod between front and back.

[0005] The other side of the filter screen is installed in the pipe body, a plurality of limit plugs are inserted into the pipe body, and a movable cover is screw-connected to the outer side of the pipe body.

[0006] The pipe body is connected with a blowdown opening below, the blowdown opening is installed with a cover plate below, a threaded rod is inserted into the pipe body, and the lower end of the threaded rod is fixedly connected with a sealing plate in the pipe body.

[0007] Preferably, the one side of the pipe body is provided with a water inlet, the other side of the pipe body is provided with a water outlet, the baffle is close to the water inlet, the filter screen is close to the water outlet, and the water outlet is connected with the one side of the butterfly valve body.

[0008] Preferably, the one side of the filter screen is inclined, and the lower end of the limit plug is in contact with the one side of the filter screen, which is also inclined.

[0009] Preferably, the outer side of the pipe body is provided with a sealing ring one and a sealing ring two on both sides of the limit plug, one end of the movable cover can be in contact with the one side of the sealing ring one, and the inner side of the movable cover can be in contact with the one side of the sealing ring two.

[0010] Preferably, the connecting rod is composed of two rod bodies rotating, and a spring is arranged between the rod bodies.

[0011] Preferably, an upper sealing port is installed on the top of the pipe body, and the threaded rod is threadedly connected to the upper sealing port.

[0012] Preferably, a wristband is fixedly connected to the outside of the active cover.

[0013] Preferably, the tube body has a stepped cross section inside, and the filter screen is located on one side of the stepped cross section.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model features a filter screen positioned at the front of the butterfly valve body. The filter screen filters impurities in the water, preventing them from accumulating inside the valve body. At the same time, multiple limit plugs limit the position of the filter screen, making it easy to replace.

[0016] 2. This utility model is designed with a sealing plate. When the sealing plate descends, it isolates the sewage outlet, allowing impurities in the sewage outlet to be discharged. At the same time, when the sealing plate rises, the baffle can be closed, thereby blocking the connection port. After the user disassembles the butterfly valve body, the filter screen can be replaced. Attached Figure Description

[0017] Fig. 1 This is a structural diagram provided in this application;

[0018] Fig. 2 This is a schematic diagram of the structure of the tube provided in this application;

[0019] Fig. 3 This is a schematic diagram of the structure of the baffle provided in this application;

[0020] Fig. 4 This is a schematic diagram of the structure of the active cover provided in this application;

[0021] In the picture:

[0022] 1. Butterfly valve body;

[0023] 2. Pipe body; 21. Inlet; 22. Outlet; 23. Baffle; 231. Deflector; 232. Connecting rod; 233. Connecting port;

[0024] 24. Filter screen; 25. Limiting plug; 26. Movable cover; 27. Sealing ring one; 28. Sealing ring two;

[0025] 3. Sewage outlet; 32. Cover plate;

[0026] 4. Threaded rod; 41. Sealing plate. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figs. 1-4 In this embodiment, an eccentric butterfly valve with anti-clogging function is provided, including a butterfly valve body 1, a pipe body 2 connected to one side of the butterfly valve body 1, a partition 23 fixedly connected to one side inside the pipe body 2, a communication port 233 opened on the partition 23, a baffle 231 symmetrically slidably connected to the upper and lower sides of the communication port 233 on one side of the partition 23, and a connecting rod 232 connected between the front and rear of the baffle 231.

[0031] A filter screen 24 is installed on the other side of the inside of the tube body 2. Multiple limiting plugs 25 are inserted inside the tube body 2. A movable cover 26 is threadedly connected to the outside of the tube body 2. The movable cover 26 is located outside the limiting plugs 25. The movable cover 26 allows the limiting plugs 25 to penetrate into the inside of the tube body 2, thus confining the filter screen 24 inside the tube body 2.

[0032] A drain outlet 3 is connected to the bottom of the pipe body 2. A cover plate 32 is installed below the drain outlet 3. A threaded rod 4 is inserted inside the pipe body 2. A sealing plate 41 is fixedly connected to the lower end of the threaded rod 4 inside the pipe body 2. The sealing plate 41 can be moved into the drain outlet 3. The sealing plate 41 is located below the baffle 231.

[0033] The lowering of the sealing plate 41 can seal the upper part of the drain outlet 3, isolating the inside of the drain outlet 3 from the inside of the pipe body 2. Opening the cover plate 32 can discharge the impurities accumulated in the drain outlet 3. The raising of the sealing plate 41 can drive the baffle 231 to rise, and the baffle 231 pushes one end of the connecting rod 232 to move upward. The end of the connecting rod 232 connected to each other moves to both sides. The pipe body 2 has a horizontal limiting groove on one side of the partition 23. The end of the connecting rod 232 slides in the limiting groove, thereby pulling the baffle 231 above to fall down and close the connecting port 233, so that the filter screen 24 can be disassembled.

[0034] In this embodiment, specifically, a water inlet 21 is provided on one side of the pipe body 2, and a water outlet 22 is provided on the other side of the pipe body 2. A baffle 23 is located near the water inlet 21, and a filter screen 24 is located near the water outlet 22. The water outlet 22 is connected to one side of the butterfly valve body 1. Water flows in through the water inlet 21, is filtered by the filter screen 24, flows out through the water outlet 22, and then enters the interior of the butterfly valve body 1.

[0035] In this embodiment, specifically, one side of the filter screen 24 is an inclined surface, and the lower end of the limiting plug 25, which contacts one side of the filter screen 24, is also an inclined surface. By lowering the inclined surface of the limiting plug 25, the inclined surface of one side of the filter screen 24 is pushed to move to one side, thereby squeezing the filter screen 24 inside the tube 2.

[0036] In this embodiment, specifically, sealing ring 27 and sealing ring 28 are provided on both sides of the limiting plug 25 on the outer side of the pipe body 2. One end of the movable cover 26 can contact one side of sealing ring 27, and the inner side of the movable cover 26 can contact one side of sealing ring 28. The gap between the movable cover 26 and the pipe body 2 is sealed by sealing ring 27 and sealing ring 28, so that the limiting plug 25 inside the movable cover 26 is in a closed space, preventing water from flowing out of the limiting plug 25 and leaking directly.

[0037] In this embodiment, specifically, the connecting rod 232 is composed of two rotating rods with a spring between them. The spring maintains the angle between the rods, ensuring that the distance between the baffles 231 connected to one end of the rods is maintained, so that the baffles 231 do not block the connecting port 233 under normal conditions, and the connecting port 233 remains open.

[0038] In this embodiment, specifically, an upper sealing port is installed on the top of the pipe body 2, and the threaded rod 4 is threadedly connected to the upper sealing port.

[0039] In this embodiment, a wristband is fixedly connected to the outside of the movable cover 26. The wristband allows the movable cover 26 to be rotated.

[0040] In this embodiment, specifically, the tube body 2 has a stepped cross-section inside, and the filter screen 24 is located on one side of the stepped cross-section. The filter screen 24 can be installed inside the tube body 2 by means of a limiting structure on one side, making disassembly more convenient.

[0041] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An eccentric butterfly valve with anti-clogging function, comprising a butterfly valve body (1), characterized in that, The butterfly valve body (1) is connected to a pipe body (2) on one side. A partition (23) is fixedly connected to one side inside the pipe body (2). A communication port (233) is opened on the partition (23). A baffle (231) is symmetrically slidably connected to the upper and lower sides of the communication port (233) on one side of the partition (23). A connecting rod (232) is connected between the front and rear of the baffle (231). A filter screen (24) is installed on the other side of the tube body (2), and multiple limiting plugs (25) are inserted inside the tube body (2). A movable cover (26) is threadedly connected to the outside of the tube body (2), and the movable cover (26) is located outside the limiting plugs (25). The lower part of the pipe body (2) is connected to a drain outlet (3), and a cover plate (32) is installed below the drain outlet (3). A threaded rod (4) is inserted inside the pipe body (2). The lower end of the threaded rod (4) is fixedly connected to a sealing plate (41) inside the pipe body (2). The sealing plate (41) can be moved into the drain outlet (3). The sealing plate (41) is located below the baffle (231).

2. The eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, The pipe body (2) has an inlet (21) on one side and an outlet (22) on the other side. The partition (23) is close to the inlet (21), the filter screen (24) is close to the outlet (22), and the outlet (22) is connected to one side of the butterfly valve body (1).

3. An eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, One side of the filter screen (24) is an inclined surface, and the lower end of the limiting plug (25) is in contact with one side of the filter screen (24), which is also an inclined surface.

4. An eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, The outer side of the tube body (2) is provided with sealing ring one (27) and sealing ring two (28) on both sides of the limiting plug (25). One end of the movable cover (26) can contact one side of sealing ring one (27), and the inner side of the movable cover (26) can contact one side of sealing ring two (28).

5. An eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, The connecting rod (232) is composed of two rotating rods with a spring between them.

6. An eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, An upper sealing port is installed on the top of the tube body (2), and the threaded rod (4) is threadedly connected to the upper sealing port.

7. An eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, A wristband is fixedly connected to the outside of the active cover (26).

8. An eccentric butterfly valve with anti-clogging function according to claim 1, characterized in that, The tube (2) has a stepped cross section inside, and the filter screen (24) is located on one side of the stepped cross section.

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