Low-water-noise wind disc electric two-way control valve

Abstract

The invention relates to the field of valve bodies, in particular to a low-water-noise wind disc electric two-way control valve which comprises a valve body and a valve element assembly, a water inlet hole and a water outlet hole are formed in the surface of the valve body at intervals, the valve element assembly comprises a valve rod, a valve clack and a valve seat, the valve body is provided with a starting cavity for the valve rod to slide, and the valve clack is connected to the end, facing the starting cavity, of the valve rod. The valve seat is connected to the inner wall of the starting cavity, the surface, facing the valve clack, of the valve seat is provided with a sealing cavity allowing the valve clack to be embedded, the sealing cavity is communicated with the water inlet hole and the starting cavity, the surface, facing the water inlet hole, of the valve seat is provided with a buffering face, the buffering face is in an arc protrusion shape, and water in the water inlet hole enters the starting cavity from the sealing cavity along the buffering face. According to the low-water-noise wind disc electric two-way control valve, the buffer face is arranged, pressure reduction of water flow in the water inlet hole is achieved, the water flow subjected to pressure reduction sequentially passes through the starting cavity and the water outlet hole from the sealing cavity, water noise of the low-water-noise wind disc electric two-way control valve is reduced, and therefore normal work and rest of a user are guaranteed.

Description

Technical Field

[0001] The present application relates to the field of valve bodies, and in particular to a low water noise fan disc electric two-way control valve. Background Art

[0002] The fan coil control valve usually refers to the fan coil control valve, which is a very important part of the air conditioning system and a key control element for controlling the water flow of the system.

[0003] The main function of the fan coil control valve is to control the flow of hot and cold water in order to adjust the water supply temperature and flow of the fan coil unit. The fan coil control valve is usually installed before and after the central air-conditioning fan, and the fan is usually installed in the hidden space of the bedroom ceiling. When cooling or heating, the valve will open or close. The water pressure in the pipeline impacts the inner cavity of the fan coil control valve, causing a lot of water noise, which affects the user's normal rest. Summary of the invention

[0004] In order to improve the problem of high water noise caused by water pressure in the pipeline impacting the inner cavity of the wind disk control valve, the present application provides a low water noise wind disk electric two-way control valve.

[0005] The present application provides a low water noise fan disc electric two-way control valve, which adopts the following technical solution: A low water noise fan disc electric two-way control valve, comprising a valve body and a valve core assembly, wherein the valve body surface is provided with a water inlet hole and a water outlet hole at intervals, the valve core assembly comprises a valve stem, a valve disc and a valve seat, the valve body is provided with a starting cavity for the valve stem to slide, the valve disc is connected to the end of the valve stem facing the starting cavity, the starting cavity is connected to the water inlet hole and the water outlet hole, the valve seat is connected to the inner wall of the starting cavity, the surface of the valve seat facing the valve disc is provided with a sealing cavity for the valve disc to be embedded, the sealing cavity is connected to the water inlet hole and the starting cavity, the surface of the valve seat facing the water inlet hole is provided with a buffer surface, the buffer surface is in the shape of a circular arc convex, and the water in the water inlet hole enters the starting cavity from the sealing cavity along the buffer surface.

[0006] By adopting the above technical scheme, the valve disc is embedded in the sealing cavity, and the outer peripheral surface of the valve disc is pressed against the inner wall of the sealing cavity to form a seal, thereby realizing the separation of the starting cavity and the water inlet hole. When the low water noise fan disc electric two-way control valve is in use, the valve stem slides in the direction away from the starting cavity, and the valve disc is separated from the sealing cavity, so that the sealing effect of the valve disc on the sealing cavity disappears, and water impacts the buffer surface through the water inlet hole. The buffer surface is in the shape of a circular arc convex, realizing a sudden change in the flow velocity and flow direction of the water flow to generate a pressure wave. The pressure wave forms an alternating disturbance and oscillating shear near the buffer surface, and the pressure wave drives the water flow pressure to reduce, thereby realizing the pressure reduction of the water flow in the water inlet hole. The depressurized water flows from the sealing cavity through the starting cavity and the water outlet hole in turn, reducing the water noise of the low water noise fan disc electric two-way control valve, thereby ensuring the normal work and rest of the user.

[0007] Optionally, the diameter of the water inlet hole is smaller than the diameter of the water outlet hole.

[0008] By adopting the above technical scheme, the aperture of the water outlet hole is larger than the aperture of the water inlet hole, the cross-sectional area of ​​the water outlet hole is larger than the cross-sectional area of ​​the water inlet hole, the water flow velocity of the water inlet hole is larger than the water flow velocity of the water outlet hole, and the kinetic energy of the water in the water inlet hole is larger than the kinetic energy of the water in the water outlet hole. Then, the static pressure of the water in the water inlet hole is smaller than the static pressure of the water in the water outlet hole, thereby further reducing the pressure of the water flow in the water inlet hole, reducing the water noise of the low water noise fan disc electric two-way control valve, and thus improving the noise reduction efficiency of the low water noise fan disc electric two-way control valve.

[0009] Optionally, a pressure reducing arc surface is provided on the inner wall of the starting chamber facing the water outlet, and the pressure reducing arc surface is in an arc shape. The pressure reducing arc surface guides the water flow in the starting chamber to rotate and then be discharged from the water outlet.

[0010] By adopting the above technical solution, when the buffer surface guides the water flow from the sealing chamber into the starting chamber, the pressure-reducing arc surface guides the water flow in the starting chamber to rotate and be discharged from the water outlet. The water flow converts part of the pressure energy into kinetic energy, thereby increasing the speed of the water flow and reducing the pressure of the water flow, further reducing the pressure of the water, thereby improving the noise reduction efficiency of the low water noise fan disc electric two-way control valve.

[0011] Optionally, a guide surface is provided on the inner wall of the starting chamber facing the sealing chamber, and the guide surface is arc-shaped, and the guide surface guides the water in the starting chamber to flow toward the pressure-reducing arc surface.

[0012] By adopting the above technical solution, when the buffer surface guides the water flow from the sealing chamber into the starting chamber, the guide surface guides the water flow in the starting chamber to flow toward the pressure reducing arc surface, thereby reducing the impact between the water flow and the inner wall of the starting chamber, improving the noise reduction efficiency of the low water noise fan disc electric two-way control valve, and extending the service life of the low water noise fan disc electric two-way control valve.

[0013] Optionally, it also includes an electrothermal actuator, which is connected to the valve body and can control the sliding of the valve stem.

[0014] By adopting the above technical solution, the electric thermal actuator controls the opening and closing of the low water noise fan disc electric two-way control valve by controlling the sliding of the valve stem, thereby realizing automatic control of the low water noise electric two-way control valve.

[0015] Optionally, the valve body is connected to a hexagonal locking cap, the inner ring of the hexagonal locking cap is connected to the water inlet hole, the inner ring of the hexagonal locking cap is provided for pipeline connection, and the aperture of the inner ring of the hexagonal locking cap is larger than the aperture of the water inlet hole.

[0016] By adopting the above technical scheme, the aperture of the inner ring of the hexagonal locking cap is larger than the aperture of the water inlet hole, the inner ring of the hexagonal locking cap is connected to the pipeline, and the water in the pipeline enters the water inlet hole through the inner ring of the hexagonal locking cap. The cross-sectional area of ​​the hexagonal locking cap is larger than the cross-sectional area of ​​the water inlet hole, the water flow velocity of the water inlet hole is greater than the water flow velocity of the hexagonal locking cap, and the kinetic energy of the water in the water inlet hole is greater than the kinetic energy of the water in the hexagonal locking cap. Then, the static pressure of the water in the water inlet hole is less than the static pressure of the water in the hexagonal locking cap, thereby further reducing the pressure of the water flow in the water inlet hole and reducing the water noise of the low water noise fan disc electric two-way control valve, thereby ensuring the normal work and rest of the user.

[0017] Optionally, the inner ring wall of the hexagonal locking cap is connected to a sealing ring 1, the outer ring of the sealing ring 1 presses against the inner ring wall of the hexagonal locking cap to form a seal, and the inner ring of the sealing ring 1 presses against the outer peripheral surface of the pipe to form a seal.

[0018] By adopting the above technical solution, when the pipe is embedded in the inner ring of the hexagonal locking cap, the outer ring of the sealing ring presses against the inner ring wall of the hexagonal locking cap to form a seal, and the inner ring of the sealing ring presses against the outer circumference of the pipe to form a seal, so that the water in the pipe stably enters the water inlet hole from the inner ring of the hexagonal locking cap, thereby improving the sealing stability of the operation of the low water noise fan disc electric two-way control valve.

[0019] Optionally, a sealing ring 2 is sleeved on the outer circumference of the valve body, the inner ring of the sealing ring 2 is pressed against the circumference of the valve body to form a seal, and the outer ring of the sealing ring 2 is pressed against the inner ring wall of the hexagonal locking cap to form a seal.

[0020] By adopting the above technical scheme, two sets of sealing rings are arranged on the outer peripheral surface of the valve body, the inner rings of the two sealing rings are pressed against the outer peripheral surface of the valve body to form a seal, and the outer rings of the two sealing rings are pressed against the inner ring wall of the hexagonal locking cap to form a seal, so that the water in the hexagonal locking cap is not easy to overflow from the connection between the hexagonal locking cap and the valve body, thereby improving the sealing stability of the low water noise fan disc electric two-way control valve.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. The setting of the buffer surface can reduce the pressure of the water flow in the water inlet hole. The water flow after the pressure reduction passes through the starting chamber and the water outlet hole from the sealing chamber in turn, reducing the water noise of the low water noise fan disc electric two-way control valve, thereby ensuring the normal work and rest of the users; 2. The setting of the pressure-reducing arc surface increases the speed of the water flow, reduces the pressure of the water flow, and further reduces the water pressure, thereby improving the noise reduction efficiency of the low-water-noise fan disc electric two-way control valve; 3. The setting of the guide surface reduces the impact between the water flow and the inner wall of the starting chamber, improves the noise reduction efficiency of the low water noise fan disc electric two-way control valve, and extends the service life of the low water noise fan disc electric two-way control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the overall structure in the embodiment of the present application.

[0023] Figure 2 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the valve core assembly.

[0024] Explanation of the accompanying drawings: 1. Valve body; 11. Water inlet hole; 12. Water outlet hole; 13. Starting chamber; 14. Pressure reducing arc surface; 15. Guide surface; 16. Limit groove; 17. Positioning chamber; 2. Valve core assembly; 21. Valve stem; 22. Valve disc; 23. Valve seat; 231. Sealing chamber; 232. Buffer surface; 3. Electric heating actuator; 4. Hexagonal locking cap; 5. Sealing ring 1; 6. Sealing ring 2. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 This application is described in further detail.

[0026] The present application discloses a low water noise fan disc electric two-way control valve. Figure 1 and Figure 2 A low water noise fan disc electric two-way control valve comprises a valve body 1, a valve core assembly 2 and an electric heating actuator 3. The side wall of the valve body 1 is provided with a water inlet hole 11 and a water outlet hole 12. The axis of the water inlet hole 11 coincides with the axis of the water outlet hole 12. The valve core assembly 2 comprises a valve stem 21, a valve flap 22 and a valve seat 23. The top surface of the valve body 1 is provided with a starting cavity 13 for the valve stem 21 to slide. The sliding direction of the valve stem 21 and the axis of the water inlet hole 11 are perpendicular to each other. The valve flap 22 is fixed on the valve stem 21 toward the starting cavity 13. The end portion, the starting chamber 13 is connected to the water inlet hole 11 and the water outlet hole 12, the valve seat 23 is integrally formed and fixed on the inner wall of the starting chamber 13 facing the valve disc 22, and the surface of the valve seat 23 facing the valve disc 22 is provided with a sealing chamber 231 for the end of the valve disc 22 to be embedded, the sealing chamber 231 penetrates the outer wall of the valve seat 23 along its own depth direction, and the sealing chamber 231 connects the water inlet hole 11 and the starting chamber 13, the electric thermal actuator 3 is installed on the top surface of the valve body 1, and the driving end of the electric thermal actuator 3 can control the sliding of the valve stem 21.

[0027] Reference Figure 1 and Figure 2When the driving end of the electrothermal actuator 3 drives the valve stem 21 to slide in the direction close to the starting chamber 13, the end of the valve disc 22 is deformed under pressure and embedded in the sealing chamber 231, and the outer peripheral surface of the valve disc 22 is pressed against the inner wall of the sealing chamber 231 to form a seal, thereby realizing the separation of the starting chamber 13 and the water inlet hole 11, and completing the closing of the electric two-way control valve of the low water noise fan disk; when the driving end of the electrothermal actuator 3 drives the valve stem 21 to slide in the direction away from the starting chamber 13, the end of the valve disc 22 is separated from the sealing chamber 231, and the sealing chamber 231 is connected to the starting chamber 13 and the water inlet hole 11, and the water in the pipeline passes through the water inlet hole 11, the sealing chamber 231, and the starting chamber 13 in turn and is discharged from the water outlet hole 12, thereby realizing the connection between the starting chamber 13 and the water inlet hole 11, and completing the opening of the electric two-way control valve of the low water noise fan disk.

[0028] Reference Figure 1 and Figure 2 The diameter of the water inlet hole 11 is smaller than the diameter of the water outlet hole 12, the cross-sectional area of ​​the water outlet hole 12 is larger than the cross-sectional area of ​​the water inlet hole 11, the water flow velocity of the water inlet hole 11 is greater than the water flow velocity of the water outlet hole 12, the kinetic energy of the water in the water inlet hole 11 is greater than the kinetic energy of the water in the water outlet hole 12, and the static pressure of the water in the water inlet hole 11 is less than the static pressure of the water in the water outlet hole 12, thereby achieving a preliminary pressure reduction of the water flow in the water inlet hole 11, reducing the water noise of the low water noise fan disc electric two-way control valve, thereby improving the noise reduction efficiency of the low water noise fan disc electric two-way control valve.

[0029] Reference Figure 1 and Figure 2 A buffer surface 232 is provided on the surface of the valve seat 23 facing the water inlet hole 11. After the water in the water inlet hole 11 impacts the buffer surface 232, it enters the starting chamber 13 from the sealing chamber 231. The buffer surface 232 is in the shape of an arc convexity. The sudden change of the water flow velocity and flow direction generates a pressure wave. The pressure wave forms an alternating disturbance and oscillating shear near the buffer surface 232. The pressure wave drives the water flow pressure to decrease, further realizing the pressure reduction of the water flow in the water inlet hole 11. The water flow after the pressure reduction passes through the starting chamber 13 and the water outlet hole 12 from the sealing chamber 231 in turn, reducing the water noise of the low water noise fan disc electric two-way control valve, thereby ensuring the normal work and rest of the user.

[0030] Reference Figure 1 and Figure 2 A pressure reducing arc surface 14 is provided on the inner wall of the starting chamber 13 facing the water outlet 12. The pressure reducing arc surface 14 is in an arc shape. The pressure reducing arc surface 14 guides the water flow in the starting chamber 13 to rotate and then be discharged from the water outlet 12. The water flow converts part of the pressure energy into kinetic energy, increases the speed of the water flow, reduces the pressure on the water flow, and further reduces the pressure on the water flow, thereby improving the noise reduction efficiency of the low water noise fan disc electric two-way control valve.

[0031] Reference Figure 1 and Figure 2A guide surface 15 is provided on the inner wall of the starting chamber 13 toward the sealing chamber 231. The guide surface 15 is arc-shaped. The guide surface 15 guides the water flow in the starting chamber 13 to flow toward the pressure-reducing arc surface 14, thereby reducing the impact between the water flow and the inner wall of the starting chamber 13, improving the noise reduction efficiency of the low-water-noise fan disc electric two-way control valve, and thus extending the service life of the low-water-noise fan disc electric two-way control valve.

[0032] Reference Figure 1 and Figure 2 A hexagonal locking cap 4 is installed at the end of the valve body 1 close to the water inlet hole 11, the axis of the hexagonal locking cap 4 coincides with the axis of the water inlet hole 11, the inner circle of the hexagonal locking cap 4 is connected to the water inlet hole 11, and the inner circle aperture of the hexagonal locking cap 4 is larger than the aperture of the water inlet hole 11, the end of the hexagonal locking cap 4 away from the valve body 1 is connected to the pipeline, and the water in the pipeline enters the water inlet hole 11 through the inner circle of the hexagonal locking cap 4, the cross-sectional area of ​​the hexagonal locking cap 4 is larger than the cross-sectional area of ​​the water inlet hole 11, the water flow velocity of the water inlet hole 11 is greater than the water flow velocity of the hexagonal locking cap 4, the kinetic energy of the water in the water inlet hole 11 is greater than the kinetic energy of the water in the hexagonal locking cap 4, then the static pressure of the water in the water inlet hole 11 is less than the static pressure of the water in the hexagonal locking cap 4, further realizing the pressure reduction of the water flow in the water inlet hole 11, reducing the water noise of the low water noise fan disc electric two-way control valve, thereby ensuring the normal work and rest of the user.

[0033] Reference Figure 1 and Figure 2 A sealing ring 5 is embedded in the inner wall of the hexagonal locking cap 4 close to the valve body 1. The material of the sealing ring 5 can be rubber or silicone. In the embodiment of the present application, the material of the sealing ring 5 is rubber, which has a certain deformation ability. The outer ring of the sealing ring 5 is pressed against the inner ring wall of the hexagonal locking cap 4 to form a seal, and the inner ring of the sealing ring 5 is pressed against the outer peripheral surface of the pipeline to form a seal, so that the water in the pipeline is not easy to overflow from the contact point between the outer peripheral surface of the pipeline and the inner ring of the hexagonal locking cap 4, thereby ensuring the stability of water delivery to the low water noise fan disc electric two-way control valve.

[0034] Reference Figure 1 and Figure 2 A limiting groove 16 for the sealing ring 5 to be embedded is provided on the end surface of the valve body 1 near the water inlet hole 11. The inner wall of the limiting groove 16 presses against the surface of the sealing ring 5 to form a seal, so that the sealing ring 5 is not easy to deviate in the inner ring of the hexagonal locking cap 4, thereby improving the limiting stability of the sealing ring 5 in the inner ring of the hexagonal locking cap 4.

[0035] Reference Figure 1 and Figure 2The outer circumference of the valve body 1 is sleeved with a sealing ring 26. The material of the sealing ring 26 can be rubber or silicone. In the embodiment of the present application, the material of the sealing ring 26 is rubber, which has a certain deformation ability. The outer circumference of the valve body 1 is provided with a positioning cavity 17 for the sealing ring 26 to be embedded. The outer ring of the sealing ring 26 is pressed against the inner ring wall of the hexagonal locking cap 4 to form a seal, and the inner ring of the sealing ring 26 is pressed against the inner wall of the positioning cavity 17 to form a seal, so that the water in the hexagonal locking cap 4 is not easy to overflow from the pressing point between the inner ring of the hexagonal locking cap 4 and the outer circumference of the valve stem 21, further ensuring the stability of water delivery to the low water noise fan disc electric two-way control valve.

[0036] The implementation principle of the low water noise fan disc electric two-way control valve in the embodiment of the present application is: when the driving end of the electric heating actuator 3 drives the valve stem 21 to slide in the direction away from the starting chamber 13, the end of the valve disc 22 is separated from the sealing chamber 231, and the sealing chamber 231 is connected to the starting chamber 13 and the water inlet hole 11. The inner circle aperture of the hexagonal locking cap 4 is larger than the aperture of the water inlet hole 11. The water in the pipeline enters the water inlet hole 11 through the inner circle of the hexagonal locking cap 4. The cross-sectional area of ​​the hexagonal locking cap 4 is larger than the cross-sectional area of ​​the water inlet hole 11. The water flow speed of the water inlet hole 11 is large. The kinetic energy of the water in the water inlet hole 11 is greater than the kinetic energy of the water in the hexagonal locking cap 4, and the static pressure of the water in the water inlet hole 11 is less than the static pressure of the water in the hexagonal locking cap 4, so as to achieve the initial pressure reduction of the water flow in the water inlet hole 11; the aperture of the water inlet hole 11 is smaller than the aperture of the water outlet hole 12, the cross-sectional area of ​​the water outlet hole 12 is larger than the cross-sectional area of ​​the water inlet hole 11, the water flow velocity of the water inlet hole 11 is greater than the water flow velocity of the water outlet hole 12, and the kinetic energy of the water in the water inlet hole 11 is greater than the kinetic energy of the water in the water outlet hole 12, so the water in the water inlet hole 11 is greater than the water flow velocity of the water outlet hole 12. The static pressure of water is less than the static pressure of water in the water outlet 12, so the second pressure reduction of water in the water inlet 11 is achieved; the water in the water inlet 11 enters the starting chamber 13 from the sealing chamber 231 after impacting the buffer surface 232, and the buffer surface 232 is in the shape of an arc convex, and the sudden change of water flow velocity and flow direction generates a pressure wave, and the pressure wave forms an alternating disturbance and oscillating shear near the buffer surface 232, and the pressure wave drives the water flow pressure to decrease, so as to achieve the third pressure reduction of water in the water inlet 11; the guide surface 15 is in the shape of an arc, and the guide surface 15 guides The water flow in the starting chamber 13 flows toward the pressure reducing camber 14, reducing the impact between the water flow and the inner wall of the starting chamber 13, thereby improving the noise reduction efficiency of the electric two-way control valve for low water noise fan disc; finally, the pressure reducing camber 14 guides the water flow in the starting chamber 13 to rotate and then be discharged from the water outlet 12, and the water flow converts part of the pressure energy into kinetic energy, increasing the speed of the water flow, reducing the pressure on the water flow, and realizing the fourth pressure reduction of the water flow, thereby reducing the water noise of the electric two-way control valve for low water noise fan disc, thereby ensuring the normal work and rest of the user.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A low water noise fan disc electric two-way control valve, characterized by: The invention comprises a valve body (1) and a valve core assembly (2), wherein a water inlet hole (11) and a water outlet hole (12) are arranged at intervals on the surface of the valve body (1), and the valve core assembly (2) comprises a valve stem (21), a valve flap (22) and a valve seat (23), and the valve body (1) is provided with a starting cavity (13) for the valve stem (21) to slide, and the valve flap (22) is connected to the end of the valve stem (21) facing the starting cavity (13), and the starting cavity (13) is connected to the water inlet hole (11) and the water outlet hole (12), and the valve seat (23) is connected to the valve stem (21) and the valve core assembly (23). Connected to the inner wall of the starting chamber (13), the surface of the valve seat (23) facing the valve disc (22) is provided with a sealing chamber (231) for the valve disc (22) to be embedded, the sealing chamber (231) is connected to the water inlet hole (11) and the starting chamber (13), the surface of the valve seat (23) facing the water inlet hole (11) is provided with a buffer surface (232), the buffer surface (232) is in the shape of a circular arc convex, and the water in the water inlet hole (11) enters the starting chamber (13) from the sealing chamber (231) along the buffer surface (232).

2. The low water noise fan disc electric two-way control valve according to claim 1 is characterized by: The diameter of the water inlet hole (11) is smaller than the diameter of the water outlet hole (12).

3. The low water noise fan disc electric two-way control valve according to claim 1 is characterized by: The inner wall of the starting chamber (13) facing the water outlet (12) is provided with a pressure reducing arc surface (14), the pressure reducing arc surface (14) is in an arc shape, and the pressure reducing arc surface (14) guides the water flow in the starting chamber (13) to rotate and then be discharged from the water outlet (12).

4. The low water noise fan disc electric two-way control valve according to claim 3 is characterized by: A guide surface (15) is provided on the inner wall of the starting chamber (13) facing the sealing chamber (231); the guide surface (15) is in an arc shape; the guide surface (15) guides the water in the starting chamber (13) to flow toward the pressure reducing arc surface (14).

5. The low water noise fan disc electric two-way control valve according to claim 1, characterized in that: It also comprises an electrothermal actuator (3), which is connected to the valve body (1) and can control the sliding of the valve stem (21).

6. The low water noise fan disc electric two-way control valve according to claim 1, characterized in that: The valve body (1) is connected to a hexagonal locking cap (4), the inner ring of the hexagonal locking cap (4) is connected to the water inlet hole (11), the inner ring of the hexagonal locking cap (4) is connected to a pipeline, and the aperture of the inner ring of the hexagonal locking cap (4) is larger than the aperture of the water inlet hole (11).

7. The low water noise fan disc electric two-way control valve according to claim 6, characterized in that: The inner wall of the hexagonal locking cap (4) is connected to a sealing ring 1 (5), the outer ring of the sealing ring 1 (5) is pressed against the inner wall of the hexagonal locking cap (4) to form a seal, and the inner ring of the sealing ring 1 (5) is pressed against the outer peripheral surface of the pipe to form a seal.

8. The low water noise fan disc electric two-way control valve according to claim 6, characterized in that: The outer peripheral surface of the valve body (1) is sleeved with a second sealing ring (6), the inner ring of the second sealing ring (6) is pressed against the outer peripheral surface of the valve body (1) to form a seal, and the outer ring of the second sealing ring (6) is pressed against the inner ring wall of the hexagonal locking cap (4) to form a seal.

Images