A remote control valve for sand control in irrigation

Abstract

This utility model discloses a remote-controlled sand-prevention valve for irrigation, specifically relating to the field of valve technology. It includes a valve body one and a valve body two, with the valve body two bolted to the right side of the valve body one. The valve body one and valve body two have inlets and outlets on their left and right sides, respectively. A fixing seat is provided on the upper part of the outer surface of the valve body one. The remote-controlled sand-prevention valve for irrigation of this utility model features a sloping design on the left and right sides of the inner surface of the sealing gasket. Utilizing the natural flow characteristics of water, the silt carried in the irrigation water can move smoothly along the slope, preventing accumulation on the left and right sides of the sealing gasket and at the junction of the sealing gasket and the valve body. The raised ring on the inner surface of the sealing gasket fits tightly with the upper and lower parts of the sealing plate, preventing silt from entering the movement gap between the sealing plate and the sealing gasket, thus avoiding silt blockage of the water flow channel and the resulting decrease in irrigation flow.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a remote control valve for sand prevention in irrigation. Background Technology

[0002] As a core component for controlling water flow and regulating flow, the operational stability and service life of valves directly affect the efficiency and maintenance costs of irrigation systems.

[0003] Agricultural irrigation water often carries a large amount of silt. This silt is prone to gravity settling when the water flow speed changes. Traditional valves often have "planar dead corners" or structural depressions inside the valve body, at the connection between the seal and the valve body, and at the movement gap of the valve core. Silt is very easy to accumulate in these areas.

[0004] Long-term accumulation of silt and sand not only clogs water flow channels, leading to a decrease in irrigation flow, but also intrudes into the gap between the valve core and the seals, causing the valve core to jam. At the same time, the accumulated silt and sand accelerates the wear of the seals and valve core, shortens the service life of the components, and increases the maintenance and replacement costs for farmers.

[0005] Therefore, a remote-controlled valve for sand control in irrigation is needed to solve the above problems. Utility Model Content

[0006] The main objective of this invention is to provide a remote control valve for sand control in irrigation, which can effectively solve the problems mentioned above.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A remote control valve for sand control in irrigation includes a valve body 1 and a valve body 2. The valve body 2 is installed on the right side of the valve body 1 by bolts. The valve body 1 and the valve body 2 are respectively provided with an inlet and an outlet on their left and right sides. The upper part of the outer surface of the valve body 1 is provided with a fixing seat. The valve body has an inner surface and the left side of the outlet, both of which are provided with an installation ring. The outer surface of the installation ring has protrusions on both the front and rear sides. The inner surface of the installation ring is provided with a sealing gasket. The outer surface of the sealing gasket is symmetrically provided with two integrally injection molded T-shaped rings. The left and right sides of the T-shaped rings are provided with several sealing rings to seal the inlet and outlet.

[0008] Preferably, the outer surface of the sealing gasket is provided with an integrally injection-molded convex ring II, the left and right sides of the mounting ring are provided with T-shaped grooves that cooperate with the two T-shaped rings, and the inner surface of the mounting ring is provided with a groove that cooperates with the convex ring II.

[0009] Preferably, the inner surface of the fixed seat and the bottom wall of the valve body are provided with a drive shaft. A sealing plate is provided in the middle of the outer surface of the drive shaft. Two annular grooves are provided on the upper and lower parts of the outer surface of the sealing plate. A convex ring is provided on the upper and lower parts of the inner surface of the sealing gasket. The outer surface of the drive shaft cooperates with the convex ring and the circular hole one and circular hole two provided on the mounting ring. Two sealing rings that cooperate with the annular grooves are provided on the inner surface of the two circular holes one.

[0010] Preferably, the inner surface of the sealing gasket has slopes on both the left and right sides to prevent mud and sand from accumulating on the left and right sides of the sealing gasket.

[0011] Preferably, the two convex rings are respectively fitted to the upper and lower parts of the sealing plate to seal the sealing plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The sealing gasket of this utility model adopts a slope design on the left and right sides of its inner surface. By utilizing the natural flow characteristics of water, the silt carried in the irrigation water can move smoothly along the slope, avoiding accumulation on the left and right sides of the sealing gasket and at the connection between the sealing gasket and the valve body. The raised ring on the inner surface of the sealing gasket fits tightly with the upper and lower parts of the sealing plate, which can prevent silt from entering the movement gap between the sealing plate and the sealing gasket. This avoids the problem of silt blocking the water flow channel and causing a decrease in irrigation flow. At the same time, it prevents silt from intruding into the gap between the valve core and the sealing element, causing the valve core to rotate and jam, thus ensuring the smooth operation of the valve.

[0013] 2. The sealing gasket, T-ring, convex ring one, and convex ring two of this utility model are all made by integral injection molding, which has a strong overall structure. It can simultaneously form a "three-sided seal" on the upper and lower parts of the sealing plate, the left wall of valve body one, and the left part of the outlet. In addition, the sealing rings on the left and right sides of the T-ring further enhance the sealing performance of the inlet and outlet, reduce the contact wear between mud and sand and the sealing parts, reduce the wear of mud and sand on the sealing parts, valve core and drive shaft, extend the overall service life of the valve, and reduce the maintenance and replacement costs for farmers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the sealing gasket portion of this utility model; Figure 5 This is a schematic diagram of the sealing gasket portion of this utility model from another perspective; Figure 6 This is a schematic plan view of the sealing gasket portion of this utility model; Figure 7 This is a schematic diagram of the mounting ring portion of this utility model; Figure 8 This is a schematic diagram of the mounting ring portion of this utility model from another perspective.

[0015] In the diagram: 1. Valve body one; 2. Valve body two; 3. Fixing seat; 4. Drive shaft; 5. Inlet; 6. Slope; 7. Protrusion; 8. Mounting ring; 9. Outlet; 10. Sealing plate; 11. Annular groove; 12. T-ring; 13. Sealing gasket; 14. Protruding ring one; 15. Circular hole one; 16. Sealing ring; 17. Sealing ring; 18. Protruding ring two; 19. T-groove; 20. Groove; 21. Circular hole two. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Example 1, as Figures 1-8 As shown, a remote control valve for sand control in irrigation includes a valve body 1 and a valve body 2. The valve body 2 is installed on the right side of the valve body 1 by bolts. The valve body 1 and the valve body 2 are respectively provided with an inlet 5 and an outlet 9 on their left and right sides. A fixing seat 3 is provided on the upper part of the outer surface of the valve body 1. The valve body 1 has an installation ring 8 on its inner surface and the left side of the outlet 9. The installation ring 8 has protrusions 7 on both the front and rear sides of its outer surface. The installation ring 8 has a sealing gasket 13 on its inner surface. The sealing gasket 13 has two T-shaped rings 12 that are integrally injection molded and symmetrically arranged on the outer surface of the sealing gasket 13. Both T-shaped rings 12 have several sealing rings 17 on their left and right sides to seal the inlet 5 and the outlet 9. Furthermore, the outer surface of the sealing gasket 13 is provided with an integrally injection-molded convex ring 18 in the middle, and the left and right sides of the mounting ring 8 are provided with T-grooves 19 that cooperate with the two T-rings 12. The inner surface of the mounting ring 8 is provided with a groove 20 that cooperates with the convex ring 18 in the middle. Furthermore, the inner surface of the fixed seat 3 and the bottom wall of the valve body 1 are provided with a drive shaft 4. A sealing plate 10 is provided in the middle of the outer surface of the drive shaft 4. Two annular grooves 11 are provided on the upper and lower parts of the outer surface of the sealing plate 10. A convex ring 14 is provided on the upper and lower parts of the inner surface of the sealing gasket 13. The outer surface of the drive shaft 4 is matched with the convex ring 14 and the circular hole 15 and circular hole 21 provided on the mounting ring 8. Two sealing rings 16 are provided on the inner surface of the two circular holes 15 to match the annular grooves 11. Furthermore, the inner surface of the sealing gasket 13 has slopes on both the left and right sides, so that mud and sand will not accumulate on the left and right sides of the sealing gasket 13. Furthermore, the two protruding rings 14 are respectively attached to the upper and lower parts of the sealing plate 10 to seal the sealing plate 10.

[0018] In practice, the drive motor is mounted on the fixed base 3, and its output end is connected to the transmission shaft 4 through a coupling, so that the output end of the drive motor drives the sealing plate 10 to rotate inside the annular shell 13 through the transmission shaft 4.

[0019] At the beginning of startup, the butterfly valve requires a large torque to overcome friction. After the drive shaft 4 on the inner surface of the sealing plate 10 overcomes the friction of the sealing ring 16 and begins to rotate and separate from it, only a small torque is needed to drive the drive shaft 4 to rotate the sealing plate 10 at a constant speed until it is fully opened.

[0020] The control method for this device is as follows: The operator controls the drive motor to operate, causing the output end of the drive motor to drive the transmission shaft 4 to rotate via the coupling. The transmission shaft 4 transmits power to the sealing plate 10, causing the sealing plate 10 to rotate. When the transmission shaft 4 drives the sealing plate 10 to rotate 90 degrees, the sealing plate 10 is in the X-axis direction. At this time, water can enter the valve body 1 from the inlet 5 and then flow out from the outlet 9. When the drive motor drives the sealing plate 10 to rotate to the Y-axis direction via the transmission shaft 4, the sealing plate 10 will first pass the slope 6 on the annular shell 13 and then come into contact with the inner surface of the annular shell 13. The annular shell 13 is made of rubber. When the sealing plate 10 comes into contact with the annular shell 13, it will squeeze the inner surface of the annular shell 13, causing the annular shell 13 to deform. This prevents water from flowing through after the sealing plate 10 comes into contact with the annular shell 13 and ensures the sealing performance between the sealing plate 10 and the annular shell 13.

[0021] In the above, the two convex rings 14 are sealed by fitting with the sealing plate 10, and are integrally injection molded with the annular shell 13 and the two T-shaped rings 12, so that the upper and lower parts of the sealing plate 10, the left wall of the valve body 1, and the left part of the outlet 9 can be sealed at the same time, forming a three-sided seal.

[0022] As described above, when the drive shaft 4 rotates, it will rotate through the circular holes 21 and 15 on the surfaces of the mounting ring 8 and the two convex rings 14. The annular grooves 11 on the upper and lower parts of the drive shaft 4, through their cooperation with the sealing ring 16, can ensure the external seal between the valve body 1 and the drive shaft 4 when the drive shaft 4 rotates, further improving the sealing performance of the device.

[0023] In the above, a rectangular groove corresponding to the protrusion 7 is provided on the inner surface of the valve body 1. After the mounting ring 8 is installed in the valve body 1, the protrusion 7 engages with the rectangular groove, so that the mounting ring 8 is further limited by the protrusion 7. This prevents the mounting ring 8 and the annular shell 13 from rotating together when the drive shaft 4 rotates, thereby improving the stability of the mounting ring 8 and the annular shell 13.

[0024] In Example 2, the annular shell 13 of this device, through the design of the slope 6, can effectively block silt. The silt carried in the irrigation water has the characteristic of "gravity settling". If the inner surface of the annular shell 13 is flat, when the water flow speed decreases, the silt is easy to accumulate at the junction of the sealing gasket and the valve body, and at the movement gap of the sealing plate 10. However, the design of the slope 6 makes the inner surface of the annular shell 13 free of "flat dead corners". The silt flows naturally along the slope with the water flow and cannot accumulate on the left and right sides of the sealing gasket.

[0025] In the above, the T-shaped ring 12 designed on the outer surface of the sealing gasket 13 precisely fits into the T-shaped groove 19 on the mounting ring 8. At the same time, the convex ring 18 in the middle of the annular shell 13 fits into the groove 20 of the mounting ring, forming a "double-fit seal". This can prevent mud and sand from entering through the gap between the mounting ring 8 and the sealing gasket 13, avoid the deformation of the sealing gasket and affect the sandproof effect after mud and sand enter, and prevent mud and sand from wearing the surface of the sealing gasket, thus extending the service life of the device.

[0026] In the above, the convex ring 14, by tightly fitting the upper and lower parts of the sealing plate 10, can prevent mud and sand from entering the gap between the sealing plate 10 and the annular shell 13. If mud and sand enter the gap of the sealing plate, it will cause the sealing plate to rotate and become stuck, resulting in sealing failure. The tight sealing of the convex ring 14 can directly block the mud and sand from contacting the gap between the sealing plate 10 and the annular shell 13, ensuring that the sealing plate 10 can rotate flexibly and avoiding the impact of mud and sand jamming on the anti-sand erosion function of the slope 6.

[0027] 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 in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A remote control valve for sand control in irrigation, comprising valve body one (1) and valve body two (2), characterized in that: The valve body 2 (2) is installed on the right side of the valve body 1 (1) by bolts. The valve body 1 (1) and the valve body 2 (2) are respectively provided with water inlet (5) and water outlet (9) on the left and right sides. The upper part of the outer surface of the valve body 1 (1) is provided with a fixing seat (3). The valve body (1) has an installation ring (8) on its inner surface and the left side of the outlet (9). The installation ring (8) has protrusions (7) on both the front and rear sides of its outer surface. The installation ring (8) has a sealing gasket (13) on its inner surface. The sealing gasket (13) has two integrally injection molded T-shaped rings (12) symmetrically arranged on its outer surface. The two T-shaped rings (12) have several sealing rings (17) on both the left and right sides to seal the inlet (5) and outlet (9).

2. The remote control valve for sand control in irrigation according to claim 1, characterized in that: The sealing gasket (13) has an integrally injection-molded convex ring two (18) in the middle of its outer surface. The mounting ring (8) has T-shaped grooves (19) on both the left and right sides that cooperate with the two T-shaped rings (12). The mounting ring (8) has a groove (20) in the middle of its inner surface that cooperates with the convex ring two (18).

3. The remote control valve for sand control in irrigation according to claim 1, characterized in that: The inner surface of the fixed seat (3) and the bottom wall of the valve body (1) are provided with a drive shaft (4). A sealing plate (10) is provided in the middle of the outer surface of the drive shaft (4). Two annular grooves (11) are opened on the upper and lower parts of the outer surface of the sealing plate (10). A convex ring (14) is provided on the upper and lower parts of the inner surface of the sealing gasket (13). The outer surface of the drive shaft (4) cooperates with the circular hole (15) and the circular hole (21) opened on the convex ring (14) and the mounting ring (8). Two sealing rings (16) that cooperate with the annular groove (11) are provided on the inner surface of the two circular holes (15).

4. The remote control valve for sand control in irrigation according to claim 1, characterized in that: The inner surface of the sealing gasket (13) has slopes (6) on both sides, so that mud and sand will not accumulate on the left and right sides of the sealing gasket (13).

5. A remote control valve for sand control in irrigation according to claim 3, characterized in that: The two protruding rings (14) are respectively attached to the upper and lower parts of the sealing plate (10) to seal the sealing plate (10).

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