Waterproof hammer electric butterfly valve

Abstract

The utility model provides a simple structure can prevent waterproof hammer's waterproof hammer electric butterfly valve, including valve body, the water inlet channel and the water outlet channel of being set up on the valve body, be located between the valve plate of water inlet channel and water outlet channel, fixed plate, be equipped with the valve rod of driving valve plate rotation on the valve body, be equipped with the electric structure of driving valve rod rotation on the valve body, the fixed ring is equipped with the fixed ring on the fixed plate side, be equipped with the elastic rubber layer of can change on the fixed ring, the placing groove is set up on the valve plate, the fixed plate is located in the placing groove, be equipped with the fixing device of preventing fixed plate from separating from the placing groove on the valve plate.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to an electric butterfly valve for preventing water hammer. Background Technology

[0002] With societal development, pipeline connections are essential in both production and daily life. These connections require pipe fittings, among which electric butterfly valves are frequently used. However, opening and closing butterfly valves generates water hammer, which strikes and damages the valve disc, thus reducing its lifespan.

[0003] This utility model was developed to solve this problem. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model proposes a waterproof electric butterfly valve with a simple structure that can prevent water hammer.

[0005] To solve the above-mentioned technical problems, the solution adopted by this utility model is as follows: a water hammer electric butterfly valve, including a valve body, an inlet channel and an outlet channel opened on the valve body, a valve plate disposed between the inlet channel and the outlet channel, and a fixing plate. The valve body is provided with a valve stem that drives the valve plate to rotate, and the valve body is provided with an electric structure that drives the valve stem to rotate. The fixing plate is provided with a fixing ring on its periphery, and the fixing ring is provided with a deformable elastic rubber layer. The valve plate is provided with a placement groove, and the fixing plate is disposed in the placement groove. The valve plate is provided with a fixing device to prevent the fixing plate from detaching from the placement groove.

[0006] A further improvement is that the fixing device includes an L-shaped fixing rod, a sliding channel is provided on the valve plate, the fixing rod slides through the fixing plate with one end located in the sliding channel and the other end able to be inserted into the placement groove, a fixing channel is provided on the fixing plate, the fixing rod is inserted into the fixing channel and engaged, and a backing device for abutting the fixing rod is provided inside the valve plate.

[0007] A further improvement is that the abutting device includes an abutting plate, an abutting channel is provided in the valve plate, the fixing rod passes through the abutting channel, the fixing rod is set on the abutting plate, an abutting spring is sleeved on the fixing rod, one end of the abutting spring resists the abutting plate, and the other end of the abutting spring resists the inner wall of the abutting channel.

[0008] A further improvement is that it also includes a plurality of pressure-reducing springs, which are disposed between the elastic rubber layer and the fixed plate, with one end of the pressure-reducing spring connected to the elastic rubber layer and the other end connected to the fixed plate.

[0009] A further improvement is that the elastic rubber layer is spherically shaped.

[0010] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0011] With its simple structure and ability to prevent water hammer, the butterfly valve's service life is improved. During operation, when the butterfly valve is closed, water hammer impacts the elastic rubber layer, causing it to deform and reduce the impact. The impact then travels to the fixed plate, preventing it from striking the valve plate, thus protecting it and extending its lifespan. This, in turn, extends the valve's overall lifespan. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the electric butterfly valve for preventing water hammer according to an embodiment of this utility model.

[0013] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A in the middle. Detailed Implementation

[0014] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0015] refer to Figure 1-2 The present invention discloses an electric butterfly valve for preventing water hammer, comprising a valve body 1, an inlet channel 2 and an outlet channel 3 formed on the valve body 1, a valve plate 4 disposed between the inlet channel 2 and the outlet channel 3, and a fixing plate 6. The valve body 1 is provided with a valve stem that drives the valve plate 4 to rotate, and the valve body 1 is provided with an electric structure that drives the valve stem to rotate. The fixing plate 6 is provided with a fixing ring on its periphery, and the fixing ring is provided with a deformable elastic rubber layer 7. The valve plate 4 is provided with a placement groove 5, and the fixing plate 6 is disposed in the placement groove 5. The valve plate 4 is provided with a fixing device to prevent the fixing plate 6 from detaching from the placement groove 5.

[0016] Specifically, the fixing device includes an L-shaped fixing rod 10 and a top plate 11. A sliding channel 9 is provided on the valve plate 4. The fixing rod 10 slides through the fixing plate 6, with one end located in the sliding channel 9 and the other end able to enter the placement groove 5. A fixing channel is provided on the fixing plate 6, and the fixing rod 10 is inserted into the fixing channel and engaged. A top channel is provided inside the valve plate 4, and the fixing rod 10 passes through the top channel. The fixing rod 10 is mounted on the top plate 11, and a top spring 12 is sleeved on the fixing rod 10. One end of the top spring 12 resists the top plate 11, and the other end of the top spring 12 resists the inner wall of the top channel. In operation, when the butterfly valve is closed, water hammer enters the inlet channel 2 and impacts the valve plate 4. The impact then strikes the elastic rubber layer 7, causing it to deform and reducing the impact of the water hammer. The water hammer then strikes the fixing plate 6, preventing it from impacting the valve plate 4 and thus protecting it from damage. This extends the service life of the valve plate 4 and consequently, the valve's overall lifespan. When the elastic rubber layer 7 or the fixing plate 6 is damaged, pulling the fixing rod 10 disengages it from the fixed channel, allowing the fixing plate 6 to be removed and replaced with a new one. This greatly facilitates replacement and maintenance and promotes cyclical use.

[0017] In order to further prevent water hammer and reduce the impact of water hammer, a plurality of pressure-reducing springs 8 are also included. The pressure-reducing springs 8 are disposed between the elastic rubber layer 7 and the fixing plate 6. One end of the pressure-reducing spring 8 is connected to the elastic rubber layer 7 and the other end is connected to the fixing plate 6.

[0018] In order to facilitate waterproofing against water hammer and improve the service life of the elastic rubber layer 7, the elastic rubber layer 7 is spherically shaped.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions above are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A water hammer-resistant electric butterfly valve, comprising a valve body, an inlet channel and an outlet channel formed on the valve body, and a valve plate disposed between the inlet channel and the outlet channel, wherein the valve body is provided with a valve stem for rotating the valve plate, and the valve body is provided with an electric mechanism for rotating the valve stem, characterized in that: It also includes a fixing plate, a fixing ring on the periphery of the fixing plate, a deformable elastic rubber layer on the fixing ring, a placement groove on the valve plate, the fixing plate being placed in the placement groove, and a fixing device on the valve plate to prevent the fixing plate from detaching from the placement groove.

2. The electric butterfly valve for preventing water hammer according to claim 1, characterized in that: The fixing device includes an L-shaped fixing rod. A sliding channel is provided on the valve plate. The fixing rod slides through the fixing plate with one end located in the sliding channel and the other end able to be inserted into the placement groove. A fixing channel is provided on the fixing plate. The fixing rod is inserted into the fixing channel and engaged. A backing device for abutting the fixing rod is provided inside the valve plate.

3. The electric butterfly valve for preventing water hammer according to claim 1, characterized in that: The abutting device includes an abutting plate, an abutting channel is provided in the valve plate, a fixing rod passes through the abutting channel, the fixing rod is set on the abutting plate, and an abutting spring is sleeved on the fixing rod. One end of the abutting spring resists the abutting plate, and the other end of the abutting spring resists the inner wall of the abutting channel.

4. The electric butterfly valve for preventing water hammer according to claim 1, characterized in that: It also includes a plurality of pressure-reducing springs, which are disposed between the elastic rubber layer and the fixed plate, with one end of the pressure-reducing spring connected to the elastic rubber layer and the other end connected to the fixed plate.

5. The electric butterfly valve for preventing water hammer according to claim 1, characterized in that: The elastic rubber layer is spherically shaped.

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