Electric butterfly valve with good sealing performance

Abstract

The utility model relates to the technical field of electric butterfly valves, in particular to an electric butterfly valve with good sealing performance, which comprises an electric controller, a valve body, a first rubber ring and a valve plate, the inner wall of the valve body is fixedly connected with the first rubber ring, the valve plate is further mounted in the valve body and positioned in the first rubber ring, and the first rubber ring is fixedly connected with the first rubber ring. A sealing assembly is arranged on the side, close to the valve plate, of the inner wall of the first rubber ring. The sealing assembly comprises a mounting sleeve, a connecting piece, a fixing frame, a clamping strip, a second rubber ring and a clamping sleeve. Through the design of a mounting sleeve, a connecting piece, a fixing frame, a clamping strip and a clamping sleeve, a second rubber ring can be fixed in a first rubber ring, the second rubber ring is arranged on a valve plate and ceramic sealing pieces at the two ends of the valve plate in a sleeving mode, and the sides, away from the valve plate, of the ceramic sealing pieces make contact with and are attached to the inner wall of the second rubber ring, so that abrasion to the first rubber ring can be reduced; and through the design of a ceramic sealing piece and a second rubber ring, the sealing performance of the electric butterfly valve can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric butterfly valves, in particular to an electric butterfly valve with good sealing performance. Background Art

[0002] Electric butterfly valves fall under the category of electric valves and electric control valves. They offer flange and wafer connections, and rubber and metal seals. Electric butterfly valves use a power signal to control their opening and closing. They can be used as shut-off valves, control valves, and check valves in pipeline systems. They also come with a manual override, allowing for temporary manual operation in the event of a power failure.

[0003] Due to the control of the flow of medium, the electric butterfly valve needs to frequently close and open the valve plate. When the valve plate is closed and opened, the valve plate and the seal are often in contact, which can easily wear the seal and reduce the sealing performance of the seal.

[0004] To this end, we propose an electric butterfly valve with good sealing performance. Utility Model Content

[0005] The main purpose of the utility model is to provide an electric butterfly valve with good sealing performance. Through the design of the sealing component, the service life of the first rubber ring can be extended. Through the design of the mounting sleeve, the connector, the fixing frame, the clamping strip and the clamping sleeve, the second rubber ring can be fixed in the first rubber ring, and the second rubber ring is placed on the valve plate and the ceramic seals at both ends of the valve plate. The ceramic seal contacts and fits with the inner wall of the second rubber ring on the side away from the valve plate, thereby reducing the wear on the first rubber ring. Through the design of the ceramic seal and the second rubber ring, the sealing performance of the electric butterfly valve can be improved, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An electric butterfly valve with good sealing performance includes an electric controller, a valve body, a valve stem, a first rubber ring and a valve plate. The top of the valve body is connected to the electric controller via the valve stem. The inner wall of the valve body is fixedly connected to the first rubber ring. A valve plate is also installed in the valve body. The valve plate is located in the first rubber ring. A sealing assembly is provided on the inner wall of the first rubber ring close to the valve plate. Ceramic seals are fixedly sleeved on both ends of the valve plate.

[0008] The sealing assembly includes a mounting sleeve, a connector, a fixing frame, a clamping strip, a second rubber ring and a clamping sleeve;

[0009] The mounting sleeve, the fixing frame and the second rubber ring are all annular structures. The fixing frame is sleeved on the second rubber ring. The outer side of the second rubber ring is fixedly connected to the inner wall of the fixing frame. An installation channel for installing a ceramic seal is provided between the second rubber ring and the valve plate. A clip that is adapted to the clip sleeve is fixedly connected to the outer side of the fixing frame. The clips are arranged in a circular array in four groups with the center of the second rubber ring as the center.

[0010] By adopting the above technical solution, when the second rubber ring is worn, the fixing frame connected to the second rubber ring is taken out from the first rubber ring, and then the clamping strip on the outside of the fixing frame connected to the new second rubber member is inserted into the clamping sleeve located on the inner wall of the first rubber ring. The end of the fixing frame away from the valve plate is connected to the mounting sleeve through the connecting piece, and the mounting sleeve is embedded in the embedding groove. Finally, one end of the self-tapping screw is passed through the mounting sleeve and fixedly connected to the two ends of the valve body, thereby completing the replacement, which has the advantage of simple operation.

[0011] Specifically, the ceramic sealing member is an arc-shaped structure, and two groups of the ceramic sealing members are arranged opposite to each other.

[0012] Specifically, the fixing frame and the second rubber ring are both located inside the first rubber ring, and a clamping sleeve is fixedly embedded on the inner wall of the first rubber ring at the position where the clamping strip is located.

[0013] Specifically, the clamping sleeves are arranged in four groups in a circular array with the center of the first rubber ring as the center of the circle, and an opening for the clamping strip to pass through is provided on the side of the clamping sleeve close to the fixed frame.

[0014] Specifically, both ends of the valve body are provided with embedding grooves for assembling the installation sleeve, and a sealing ring sleeved on the outside of the installation sleeve is fixedly glued to the inner wall of the embedding groove.

[0015] Specifically, the inner walls at both ends of the installation sleeve are integrally formed with connecting pieces, the connecting piece is located at one end of the first rubber ring, and the connecting piece is fixedly connected to one end of the fixing frame away from one end of the installation sleeve.

[0016] Beneficial effects of the utility model:

[0017] (1) The electric butterfly valve with good sealing performance described in the utility model can extend the service life of the first rubber ring through the design of the sealing component, and the second rubber ring can be fixed in the first rubber ring through the design of the mounting sleeve, the connecting piece, the fixing frame, the clamping strip and the clamping sleeve, and the second rubber ring is placed on the valve plate and the ceramic seals at both ends of the valve plate. The ceramic seal is in contact with and fits the inner wall of the second rubber ring on the side away from the valve plate, thereby reducing the wear on the first rubber ring. The design of the ceramic seal and the second rubber ring can improve the sealing performance of the electric butterfly valve;

[0018] (2) The electric butterfly valve with good sealing performance described in the present invention is that when the second rubber ring is worn, the fixing frame connected to the second rubber ring is taken out from the first rubber ring, and then the clamping strip on the outside of the fixing frame connected to the new second rubber member is inserted into the clamping sleeve located on the inner wall of the first rubber ring. The end of the fixing frame away from the valve plate is connected to the mounting sleeve through a connecting piece, and the mounting sleeve is embedded in the embedding groove. Finally, one end of the self-tapping screw is passed through the mounting sleeve and fixedly connected to the two ends of the valve body, thereby completing the replacement, which has the advantage of simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a structural diagram of the utility model;

[0022] Figure 3 It is a structural diagram of the utility model;

[0023] In the figure: 1. Electric controller; 2. Valve body; 3. Valve stem; 4. First rubber ring; 5. Valve plate; 6. Ceramic seal; 7. Sealing assembly; 8. Mounting sleeve; 9. Connector; 10. Fixing frame; 11. Clip strip; 12. Second rubber ring; 13. Embedded groove; 14. Clamping sleeve; 15. Opening; 16. Sealing ring; 17. Mounting channel. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] As an embodiment of the present invention, Figure 1-Figure 3 As shown, the utility model describes an electric butterfly valve with good sealing performance, comprising an electric controller 1, a valve body 2, a valve stem 3, a first rubber ring 4 and a valve plate 5. The top of the valve body 2 is connected to the electric controller 1 through the valve stem 3. The inner wall of the valve body 2 is fixedly connected to the first rubber ring 4. A valve plate 5 is also installed in the valve body 2. The valve plate 5 is located in the first rubber ring 4. A sealing assembly 7 is provided on the inner wall of the first rubber ring 4 close to the valve plate 5. Ceramic seals 6 are fixedly sleeved on both ends of the valve plate 5.

[0026] The sealing assembly 7 includes a mounting sleeve 8, a connector 9, a fixing frame 10, a clamping strip 11, a second rubber ring 12 and a clamping sleeve 14;

[0027] The mounting sleeve 8, the fixing frame 10 and the second rubber ring 12 are all annular structures. The fixing frame 10 is sleeved on the second rubber ring 12. The outer side of the second rubber ring 12 is fixedly connected to the inner wall of the fixing frame 10. A mounting channel 17 for installing the ceramic seal 6 is provided between the second rubber ring 12 and the valve plate 5. A clip 11 adapted to the clip sleeve 14 is fixedly connected to the outer side of the fixing frame 10. The clip 11 has four groups of annular arrays with the center of the second rubber ring 12 as the center.

[0028] During use, the ceramic seal 6 contacts and fits with the inner wall of the second rubber ring 12 on the side away from the valve plate 5, thereby reducing the wear on the first rubber ring 4. Through the design of the sealing assembly 7, the service life of the first rubber ring 4 can be extended. When the second rubber ring 12 is worn, the fixing frame 10 connected to the second rubber ring 12 is removed from the first rubber ring 4 and replaced with a new second rubber ring 2.

[0029] The present invention also includes that the ceramic sealing member 6 is an arc-shaped structure, and two groups of the ceramic sealing members 6 are arranged opposite to each other.

[0030] The present invention also includes that the fixed frame 10 and the second rubber ring 12 are both located inside the first rubber ring 4, and a clamping sleeve 14 is fixedly embedded on the inner wall of the first rubber ring 4 at the position where the clamping strip 11 is located; the clamping sleeve 14 is arranged in four groups in a circular array with the center of the first rubber ring 4 as the center of the circle, and the clamping sleeve 14 is provided with an opening 15 for the clamping strip 11 to pass through on the side close to the fixed frame 10.

[0031] The utility model also includes that both ends of the valve body 2 are provided with an embedding groove 13 for assembling the mounting sleeve 8, and the inner wall of the embedding groove 13 is fixedly glued with a sealing ring 16 sleeved on the outside of the mounting sleeve 8; both ends of the first rubber ring 4 are provided with a groove for installing the sealing component 7, and the sealing component 7 is embedded in the groove.

[0032] The present invention also includes that the inner walls at both ends of the installation sleeve 8 are integrally formed with connecting pieces 9, the connecting piece 9 is located at one end of the first rubber ring 4, and the end of the connecting piece 9 away from the installation sleeve 8 is fixedly connected to one end of the fixing frame 10.

[0033] When the utility model is in use, two sets of sealing assemblies 7 arranged opposite to each other are installed in the grooves at both ends of the first rubber ring 4, the clamping strip 11 on the outer side of the fixing frame 10 connected to the second rubber ring 12 is inserted into the clamping sleeve 14 located on the inner wall of the first rubber ring 4, the end of the fixing frame 10 away from the valve plate 5 is connected to the installation sleeve 8 through the connecting piece 9, the installation sleeve 8 is embedded in the embedding groove 13, and finally one end of the self-tapping screw is passed through the installation sleeve 8 and fixedly connected to the two ends of the valve body 2;

[0034] Arc-shaped ceramic seals 6 are installed at both ends of the valve plate 5. The side of the ceramic seal 6 away from the valve plate 5 contacts and fits with the inner wall of the second rubber ring 12, thereby reducing the wear on the first rubber ring 4. The design of the sealing assembly 7 can extend the service life of the first rubber ring 4. When the second rubber ring 12 is worn, the fixing frame 10 connected to the second rubber ring 12 is removed from the first rubber ring 4 and replaced with a new second rubber ring 2.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric butterfly valve with good sealing performance, characterized in that: The valve body (2) comprises an electric controller (1), a valve body (2), a valve stem (3), a first rubber ring (4) and a valve plate (5); the top end of the valve body (2) is connected to the electric controller (1) via the valve stem (3); the inner wall of the valve body (2) is fixedly connected to the first rubber ring (4); a valve plate (5) is also installed in the valve body (2); the valve plate (5) is located in the first rubber ring (4); a sealing component (7) is provided on the inner wall of the first rubber ring (4) near the valve plate (5); and ceramic sealing components (6) are fixedly sleeved on both ends of the valve plate (5); The sealing assembly (7) comprises a mounting sleeve (8), a connecting piece (9), a fixing frame (10), a clamping strip (11), a second rubber ring (12) and a clamping sleeve (14); The mounting sleeve (8), the fixing frame (10) and the second rubber ring (12) are all annular structures. The fixing frame (10) is sleeved on the second rubber ring (12). The outer side of the second rubber ring (12) is fixedly connected to the inner wall of the fixing frame (10). An installation channel (17) for installing a ceramic seal (6) is provided between the second rubber ring (12) and the valve plate (5). A clip (11) adapted to the clip sleeve (14) is fixedly connected to the outer side of the fixing frame (10). The clip (11) has four groups of annular arrays with the center of the second rubber ring (12) as the center of the circle.

2. The electric butterfly valve with good sealing performance according to claim 1 is characterized in that: The ceramic sealing member (6) is an arc-shaped structure, and two groups of the ceramic sealing members (6) are arranged opposite to each other.

3. The electric butterfly valve with good sealing performance according to claim 1, characterized in that: The fixing frame (10) and the second rubber ring (12) are both located inside the first rubber ring (4), and a clamping sleeve (14) is fixedly embedded on the inner wall of the first rubber ring (4) at the position where the clamping strip (11) is located.

4. The electric butterfly valve with good sealing performance according to claim 3 is characterized in that: The clamping sleeves (14) are arranged in four groups in a circular array with the center of the first rubber ring (4) as the center of the circle. An opening (15) for the clamping strip (11) to pass through is provided on one side of the clamping sleeve (14) close to the fixed frame (10).

5. The electric butterfly valve with good sealing performance according to claim 1, characterized in that: Both ends of the valve body (2) are provided with an embedding groove (13) for assembling the installation sleeve (8), and a sealing ring (16) sleeved on the outside of the installation sleeve (8) is fixedly glued to the inner wall of the embedding groove (13).

6. The electric butterfly valve with good sealing performance according to claim 1, characterized in that: Connecting pieces (9) are integrally formed on the inner walls of both ends of the mounting sleeve (8), and the connecting piece (9) is located at one end of the first rubber ring (4). The end of the connecting piece (9) away from the mounting sleeve (8) is fixedly connected to one end of the fixing frame (10).

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