Butterfly valve with self-cleaning structure

Abstract

The utility model discloses a butterfly valve with a self-cleaning structure, which relates to the technical field of butterfly valves and comprises a valve body, a switch handle is mounted at the top of the valve body, a rotating rod is connected to the bottom of the switch handle, a butterfly plate positioned in the valve body is connected to the bottom of the rotating rod, and cleaning rings are arranged at two ends in the valve body. Transverse plates are fixed to the inner walls of the two cleaning rings correspondingly, linkage rods are hinged to the outer walls of the two sides of the butterfly plate correspondingly, and the ends, away from each other, of the two linkage rods are hinged to the side walls of the two transverse plates correspondingly. When the butterfly plate is in a closed state, the two cleaning rings are kept still in position, when the switch handle is rotated to enable the butterfly plate to rotate by 90 degrees, the butterfly plate can push the two linkage rods in the rotating process, then the two cleaning rings are pushed, and the two cleaning rings are made to be far away from the butterfly plate; and impurities and dirt on the inner wall of the valve body can be shoveled down in the moving process of the two cleaning rings and washed away along with water flow, and corrosion to the inner wall of the valve body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a self-cleaning structure. Background Technique

[0002] A butterfly valve, also called a flap valve, is a simple structure regulating valve, which can be used for the on-off control of the medium in a low-pressure pipeline. The butterfly valve refers to a valve whose closing member is a disc and rotates around the valve shaft to achieve opening and closing.

[0003] At present, most of the existing butterfly valves do not have a cleaning function. Impurities and dirt often adhere to the inner wall surface of the valve body, which will cause corrosion to the inner wall of the valve body. Content of the Utility Model

[0004] The utility model provides a butterfly valve with a self-cleaning structure. When the butterfly plate opens and closes, it pushes two cleaning rings to shovel the impurities and dirt on the inner wall of the valve body, and washes them away with the water flow, avoiding corrosion of the inner wall of the valve body.

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

[0006] A butterfly valve with a self-cleaning structure includes a valve body. A switch handle is installed at the top of the valve body. A rotating rod is connected to the bottom of the switch handle. A butterfly plate located inside the valve body is connected to the bottom of the rotating rod. Cleaning rings are arranged at both ends inside the valve body. Transverse plates are fixed to the inner walls of the two cleaning rings. Linking rods are hinged to the outer walls on both sides of the butterfly plate. The far ends of the two linking rods are respectively hinged to the side walls of the two transverse plates.

[0007] Through the above scheme, when the butterfly plate is in the closed state, the two cleaning rings remain stationary. When the switch handle is rotated to make the butterfly plate rotate by 90 degrees, during the rotation of the butterfly plate, it will push the two linking rods, and then push the two cleaning rings, so that the two cleaning rings move away from the butterfly plate. During the movement of the two cleaning rings, the impurities and dirt on the inner wall of the valve body can be shoveled off and washed away with the water flow, avoiding corrosion of the inner wall of the valve body.

[0008] Preferably, guide grooves are opened at both ends of the inner walls on both sides of the valve body. Guide blocks are fixed to the outer walls on both sides of the two cleaning rings. The guide blocks are placed in the corresponding guide grooves.

[0009] Through the above scheme, the movement of the cleaning rings is more stable.

[0010] Preferably, mounting rings are fixed to the outer walls on both sides of the valve body. Mounting holes are opened in the side walls of the two mounting rings at equidistant intervals.

[0011] Through the above scheme, it is convenient to connect and install the valve body to the pipeline.

[0012] Preferably, one side of the cleaning ring is beveled.

[0013] With the above solution, it is convenient to scrape off the impurities on the inner wall of the valve body.

[0014] Preferably, the outer wall of the valve body is sprayed with anti-rust paint.

[0015] With the above solution, it can play a protective role for the valve body.

[0016] Preferably, the two linkage rods are arranged in parallel.

[0017] With the above solution, the positions of the two linkage rods are ensured to be accurate.

[0018] The beneficial effects of the present utility model are as follows:

[0019] When the butterfly plate is in the closed state, the two cleaning rings remain stationary. When the switch handle is rotated to make the butterfly plate rotate by 90 degrees, the butterfly plate will push the two linkage rods during the rotation process, and then push the two cleaning rings, so that the two cleaning rings move away from the butterfly plate. During the movement of the two cleaning rings, the impurities and dirt on the inner wall of the valve body can be scraped off and washed away with the water flow, avoiding corrosion of the inner wall of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional external view of a butterfly valve with a self-cleaning structure proposed by the present utility model;

[0021] Figure 2 is a three-dimensional cross-sectional view of a butterfly valve with a self-cleaning structure proposed by the present utility model;

[0022] Figure 3 is a top cross-sectional view of a butterfly valve with a self-cleaning structure proposed by the present utility model.

[0023] In the figure: 1, valve body; 2, switch handle; 3, rotating rod; 4, butterfly plate; 5, cleaning ring; 6, cross plate; 7, linkage rod; 8, guide groove; 9, guide block; 10, mounting ring; 11, mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Refer to Figures 1-3, a butterfly valve with a self-cleaning structure, comprising a valve body 1. Installation rings 10 are fixedly arranged on the outer walls on both sides of the valve body 1. Equally spaced installation holes 11 are formed in the side walls of the two installation rings 10, which facilitates the connection and installation of the valve body 1 to the pipeline. Guide grooves 8 are formed at both ends of the inner walls on both sides of the valve body 1. Guide blocks 9 are fixedly arranged on the outer walls on both sides of the two cleaning rings 5, and the guide blocks 9 are placed in the corresponding guide grooves 8, making the cleaning rings 5 more stable during the movement process;

[0026] A switch handle 2 is installed at the top of the valve body 1. A rotating rod 3 is connected to the bottom of the switch handle 2. A butterfly plate 4 located inside the valve body 1 is connected to the bottom of the rotating rod 3. Cleaning rings 5 are arranged at both ends inside the valve body 1. Horizontal plates 6 are fixedly arranged on the inner walls of the two cleaning rings 5. Linking rods 7 are hinged to the outer walls on both sides of the butterfly plate 4. The far ends of the two linking rods 7 are respectively hinged to the side walls of the two horizontal plates 6. When the butterfly plate 4 is in the closed state, the two cleaning rings 5 remain stationary. When the switch handle 2 is rotated to make the butterfly plate 4 rotate by 90 degrees, the butterfly plate 4 will push the two linking rods 7 during the rotation process, and then push the two cleaning rings 5, causing the two cleaning rings 5 to move away from the butterfly plate 4. During the movement process of the two cleaning rings 5, impurities and dirt on the inner wall of the valve body 1 can be shoveled off and washed away with the water flow, avoiding corrosion of the inner wall of the valve body 1.

[0027] Working principle: When the butterfly plate 4 is in the closed state, the two cleaning rings 5 remain stationary. When the switch handle 2 is rotated to make the butterfly plate 4 rotate by 90 degrees, the butterfly plate 4 will push the two linking rods 7 during the rotation process, and then push the two cleaning rings 5, causing the two cleaning rings 5 to move away from the butterfly plate 4. During the movement process of the two cleaning rings 5, impurities and dirt on the inner wall of the valve body 1 can be shoveled off and washed away with the water flow, avoiding corrosion of the inner wall of the valve body 1.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A butterfly valve with a self-cleaning structure, comprising a valve body (1), characterized in that: A switch handle (2) is installed on the top of the valve body (1), a rotating rod (3) is connected to the bottom of the switch handle (2), and a butterfly plate (4) located in the valve body (1) is connected to the bottom of the rotating rod (3). Cleaning rings (5) are provided at both ends of the interior of the valve body (1), and transverse plates (6) are fixed to the inner walls of the two cleaning rings (5). Linkage rods (7) are hinged to the outer walls of both sides of the butterfly plate (4), and the two linkage rods (7) are hinged to the side walls of the two transverse plates (6) at their ends away from each other.

2. A butterfly valve with a self-cleaning structure according to claim 1, characterized in that: Both ends of the inner walls of the valve body (1) are provided with guide grooves (8), and both outer walls of the two cleaning rings (5) are fixed with guide blocks (9), and the guide blocks (9) are placed in the corresponding guide grooves (8).

3. The butterfly valve with a self-cleaning structure according to claim 1, characterized in that: The outer walls on both sides of the valve body (1) are fixed with mounting rings (10), and the side walls of the two mounting rings (10) are provided with mounting holes (11) distributed at equal distances.

4. The butterfly valve with a self-cleaning structure according to claim 1, characterized in that: One side of the cleaning ring (5) is beveled.

5. The butterfly valve with a self-cleaning structure according to claim 1, characterized in that: The outer wall of the valve body (1) is sprayed with anti-rust paint.

6. The butterfly valve with a self-cleaning structure according to claim 1, characterized in that: The two linkage rods (7) are arranged in parallel.

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