A fluid control valve that can be used for irrigation

Abstract

The present invention discloses a fluid control valve that can be used for irrigation, including a valve body, a driving device and a valve flap assembly, wherein the valve flap assembly includes a fixed valve disc and a movable valve disc, wherein the fixed valve disc is fixed on the valve body, wherein the movable valve disc is coaxially rotatably arranged on the fixed valve disc, wherein a through hole and a blind hole are provided on the fixed valve disc, wherein the through hole is connected to a water outlet, wherein a conducting channel is provided on the movable valve disc, wherein the conducting channel is connected to a water inlet, wherein the through hole is connected to the water outlet in a one-to-one correspondence, and the water inlet and the water outlet are connected or disconnected by overlapping the conducting channel with the through hole or the blind hole. The fluid control valve that can be used for irrigation of the present invention can effectively control and switch the flow rate by arranging the fixed valve disc and the movable valve disc, and can effectively scrape off impurities on the end faces of the two valve discs by grinding the two valve discs against each other, thereby having the benefit of a self-cleaning sealing surface.

Description

Technical Field

[0001] The present invention relates to a control valve, and more particularly to a fluid control valve which can be used for irrigation. Background Art

[0002] In the field of agricultural irrigation technology, a valve is usually used to control the opening and closing of a flow channel. The cost of the pipeline system is high and there are defects such as inconvenient operation. For irrigation of a large area of ​​farmland, some use a water outlet pile to divide it into two or four pipelines, and install a valve on each pipeline to control it; some use three-way or five-way valves to control each pipeline. The fluid control valve used in the existing technology for agricultural irrigation systems is usually a diaphragm valve or a soft-sealed ball valve. In order to prevent the drip irrigation belt from breaking in the drip irrigation system, the water pressure of the drip irrigation is very low. For the diaphragm valve, it is sometimes difficult to overcome the elastic force of the reset spring, and there is a situation where the valve cannot be opened. In addition, the diaphragm valve is generally sealed with rubber and plastic, which is not resistant to impurities and is easy to get stuck and leak. The soft-sealed ball valve is generally sealed with a plastic ball or a stainless steel ball and a polytetrafluoroethylene gasket, and there are problems such as the sealing structure is not resistant to wear, easy to age, and easy to be stuck or scratched by impurities. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fluid control valve, which adopts a planar sealing structure, and the opening and closing parts include ceramic parts processed into high flatness and high hardness, and have the characteristics of wear resistance, corrosion resistance, aging resistance, and self-cleaning sealing surface. At the same time, the present invention realizes that one valve can control the opening and closing and flow regulation functions of two or more pipelines, and has the beneficial effects of low cost and more convenient operation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fluid control valve that can be used for irrigation, comprising a valve body, a driving device and a valve flap assembly, the valve body is provided with a water inlet and a water outlet, the valve flap assembly is arranged in the valve body, and is used to connect or disconnect the water inlet and the water outlet, the driving device comprises a driving shaft, one end of the driving shaft is linked to an external power source, and the other end is inserted into the valve body and linked to the valve flap assembly, characterized in that: the valve flap assembly comprises a fixed valve plate and a movable valve plate, the fixed valve plate is fixed on the valve body, the movable valve plate is coaxially rotatably arranged on the fixed valve plate, the movable valve plate is driven by the driving shaft to rotate on the fixed valve plate, the fixed valve plate is provided with a through hole and a blind hole, the through hole is connected to the water outlet, the movable valve plate is provided with a conducting channel, the conducting channel is connected to the water inlet, the through hole is connected to the water outlet in a one-to-one correspondence, so as to connect or disconnect the water inlet and the water outlet by overlapping the conducting channel with the through hole or the blind hole.

[0005] As a further improvement of the present invention, there are multiple water outlets and through holes, and the multiple water outlets correspond to the multiple through holes one by one. There is one or more conducting channels, so that when the conducting channel coincides with the through hole, the water inlet and one water outlet are connected or the water inlet and multiple water outlets are connected.

[0006] As a further improvement of the present invention, the valve body is a five-way valve body, the water outlets include a first water outlet, a second water outlet, a third water outlet and a fourth water outlet, the through holes on the fixed valve plate include a first through hole, a second through hole, a third through hole and a fourth through hole, and the first through hole, the second through hole, the third through hole and the fourth through hole are connected to the first water outlet, the second water outlet, the third water outlet and the fourth water outlet one by one.

[0007] As a further improvement of the present invention, the blind hole on the fixed valve plate includes a first blind hole and a second blind hole, and the conducting channel on the movable valve plate includes a first conducting channel and a second conducting channel. When the movable valve plate rotates so that the first conducting channel and the second conducting channel coincide with the first blind hole and the second blind hole, the water inlet and the water outlet are in a disconnected state. When the movable valve plate rotates so that the first conducting channel and the second conducting channel coincide with the first through hole and the third through hole or the second through hole and the fourth through hole, the water inlet and the water outlet are in a connected state and the flow rate is adjusted.

[0008] As a further improvement of the present invention, the conducting channel on the movable valve plate is provided with a, when the movable valve plate rotates so that the conducting channel coincides with the blind hole of the fixed valve plate, the water inlet and the water outlet are in a disconnected state, when the movable valve plate rotates so that the conducting channel coincides with the first through hole, the second through hole, the third through hole and the fourth through hole respectively, the water inlet and the water outlet are in a connected state and the flow is adjusted.

[0009] As another improvement of the present invention, the valve body is a three-way valve body, the water outlet includes a first water outlet and a second water outlet, the through hole on the fixed valve plate includes a first through hole and a second through hole, and the first through hole and the second through hole are connected to the first water outlet and the second water outlet in a one-to-one correspondence.

[0010] As a further improvement of the above-mentioned improved method, the blind hole on the fixed valve plate includes a first blind hole and a second blind hole, and the conducting channel on the movable valve plate includes a first conducting channel and a second conducting channel. When the movable valve plate rotates so that the first conducting channel and the second conducting channel coincide with the first blind hole and the second blind hole, the water inlet and the water outlet are in a disconnected state; when the movable valve plate rotates so that the first conducting channel and the second conducting channel coincide with the first through hole and the second through hole, the water inlet and the water outlet are in a connected state and the flow rate is adjusted.

[0011] As a further improvement of the above-mentioned improved method, the conducting channel on the movable valve plate is provided with a, when the movable valve plate rotates so that the conducting channel coincides with the blind hole of the fixed valve plate, the water inlet and the water outlet are in a disconnected state, when the movable valve plate rotates so that the conducting channel coincides with the first through hole and the second through hole respectively, the water inlet and the water outlet are in a connected state, and the flow rate is adjusted.

[0012] The beneficial effects of the present invention are that the valve opening and closing parts include a movable valve plate and a fixed valve plate with high hardness and high flatness made of engineering ceramics. The opening and closing of the flow channel is realized by a combination of through holes and blind holes on the fixed valve plate and a conducting channel on the movable valve plate. This has the beneficial effects of wear resistance, abrasion resistance, aging resistance, and a self-cleaning sealing surface. During use, scraped impurities can also be stored through the blind holes to avoid impurities being between the movable valve plate and the fixed valve plate and causing sealing problems. At the same time, one valve can control the opening and closing and flow regulation functions of two or more flow channels, thereby reducing costs and making operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of Embodiment 1 and Embodiment 2 of the present invention;

[0014] Figure 2 Schematic diagram of valve bodies of Embodiments 1 and 2 of the present invention;

[0015] Figure 3 is a top view of the fixed valve plate of the first embodiment and the second embodiment of the present invention;

[0016] Figure 4 is a top view of the movable valve plate of the first embodiment of the present invention;

[0017] Figure 5 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the closed state of the control valve in the first embodiment of the present invention;

[0018] Figure 6 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is simultaneously flowing through the first water outlet and the third water outlet of the control valve (the flow rate can be adjusted simultaneously) according to the first embodiment of the present invention;

[0019] Figure 7 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is simultaneously flowing through the first water outlet and the third water outlet of the control valve (maximum flow rate) according to the first embodiment of the present invention;

[0020] Figure 8 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the second water outlet and the fourth water outlet of the control valve at the same time (maximum flow rate) according to the first embodiment of the present invention;

[0021] Fig. 9It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the second water outlet and the fourth water outlet of the control valve at the same time (the flow rate can be adjusted simultaneously) according to the first embodiment of the present invention;

[0022] Fig.10 is a top view of the movable valve plate of the second embodiment of the present invention;

[0023] Fig.11 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the closed state of the control valve in the second embodiment of the present invention;

[0024] Fig.12 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the first water outlet of the control valve (adjustable flow rate) according to the second embodiment of the present invention;

[0025] Fig.13 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the first water outlet of the control valve (maximum flow rate) according to the second embodiment of the present invention;

[0026] Fig.14 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water (maximum flow) is flowing through the second water outlet of the control valve according to the second embodiment of the present invention;

[0027] Fig.15 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the second water outlet of the control valve (adjustable flow rate) according to the second embodiment of the present invention;

[0028] Fig.16 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the third water outlet of the control valve (adjustable flow rate) according to the second embodiment of the present invention;

[0029] Fig.17 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the third water outlet of the control valve (maximum flow) according to the second embodiment of the present invention;

[0030] Fig.18 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water (maximum flow) is flowing through the fourth water outlet of the control valve according to the second embodiment of the present invention;

[0031] Fig.19 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the fourth water outlet of the control valve (adjustable flow rate) according to the second embodiment of the present invention;

[0032] Fig. 20 It is a schematic diagram of the structure of the third and fourth embodiments of the present invention;

[0033] Fig.21 Schematic diagram of the valve body of the third and fourth embodiments of the present invention;

[0034] Fig. 22 is a top view of the fixed valve plate of the third embodiment and the fourth embodiment of the present invention;

[0035] Fig.23 is a top view of a movable valve plate according to a third embodiment of the present invention;

[0036] Fig.24 Schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the closed state of the control valve in the third embodiment of the present invention;

[0037] Fig.25 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is simultaneously flowing through the first water outlet and the second water outlet of the control valve (the flow rate can be adjusted simultaneously) according to the third embodiment of the present invention;

[0038] Fig.26 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is simultaneously flowing through the first water outlet and the second water outlet of the control valve (maximum flow rate) according to the third embodiment of the present invention;

[0039] Fig. 27 is a top view of a movable valve plate according to a fourth embodiment of the present invention;

[0040] Fig.28 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the closed state of the control valve in the fourth embodiment of the present invention;

[0041] Fig.29 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the fourth embodiment of the present invention when water is flowing through the first water outlet of the control valve (adjustable flow rate);

[0042] Fig.30 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the fourth embodiment of the present invention when the first water outlet of the control valve is in the state of water passing (maximum flow);

[0043] Fig.31 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water (maximum flow) is flowing through the second water outlet of the control valve according to the fourth embodiment of the present invention;

[0044] Fig.32 It is a schematic diagram of the coordination state of the movable valve plate and the fixed valve plate in the state where water is flowing through the second water outlet of the control valve (adjustable flow rate) according to the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0045] The present invention will be further described below in detail with reference to the embodiments shown in the accompanying drawings.

[0046] Example 1: Reference Figures 1 to 9 As shown, this embodiment provides the following implementation methods:

[0047] The fluid control valve in this embodiment includes a five-way valve body 30, a fixed valve disc 10, a movable valve disc 20, a driving device 40 for controlling the rotation of the movable valve disc, a clamping nut 50 and a water inlet joint 60. The driving device 40 includes a driving shaft, one end of which is linked to an external power source, and the other end of which penetrates into the valve body and is linked to the valve disc assembly. The fixed valve disc 10, the movable valve disc 20 and the clamping nut 50 are sequentially assembled in the five-way valve body 30 from top to bottom, the fixed valve disc 10 is stationary relative to the five-way valve body 30, and the movable valve disc 20 is driven by the driving device 40 to rotate so that the movable valve disc 20 and the fixed valve disc 10 form a sealing matching relationship. The five-way valve body 30 is provided with a water inlet 35, a first water outlet 31, a second water outlet 32, a third water outlet 33 and a fourth water outlet 34; four through holes and two blind holes are arranged at six equal angles on the outer rotation circle of the fixed valve disc 10, which are respectively a first through hole 11, a second through hole 12, a first blind hole 13, a third through hole 14, a fourth through hole 15 and a second blind hole 16. The first through hole 11 is communicated with the first water outlet 31 of the five-way valve body, the second through hole 12 is communicated with the second water outlet 32 ​​of the five-way valve body, the third through hole 14 is communicated with the third water outlet 33 of the five-way valve body, and the fourth through hole 15 is communicated with the fourth water outlet 34 of the five-way valve body; two diagonally distributed conducting channels 21 and 22 are arranged at six equal angles on the outer rotation circle of the movable valve disc 20, and the conducting channels 21 and 22 are always connected with the water inlet 35 of the five-way valve body 30.

[0048] The functions of the movable valve plate 20 and the fixed valve plate 10 under different matching conditions are described in detail below.

[0049] Control valve closed: Figure 5 As shown, the driving device 40 drives the movable valve plate 20 to rotate, so that the two conducting channels 21 and 22 of the movable valve plate 20 overlap with the two blind holes 13 and 16 of the fixed valve plate 10, and the water inlet 35 and the four water outlets 31, 32, 33 and 34 of the control valve are not conductive. No water flows out of each water outlet, and the valve is in a closed state.

[0050] The first and third water outlets of the control valve discharge water at the same time, and the flow rate is adjusted at the same time: Figure 6 and 7 As shown, the movable valve plate 20 is driven to rotate by the driving device 40, so that the two conducting channels 21 and 22 of the movable valve plate 20 are partially or completely connected with the first through hole 11 and the third through hole 14 of the fixed valve plate 10, respectively, and the water inlet 35 and the first water outlet 31 and the third water outlet 33 of the control valve are connected, so that water can be discharged from the first water outlet and the third water outlet of the control valve at the same time, and the flow rate can be adjusted at the same time according to different conduction angles.

[0051] The second and fourth water outlets of the control valve discharge water at the same time, and the flow rate is adjusted at the same time: Figure 8 and 9As shown, the movable valve plate 20 is driven to rotate by the driving device 40, so that the two conducting channels 21 and 22 of the movable valve plate 20 are partially or completely connected with the second through hole 12 and the fourth through hole 15 of the fixed valve plate 10, respectively, and the water inlet 35 and the second water outlet 32 ​​and the fourth water outlet 34 of the control valve are connected, so that water can be discharged from the second water outlet and the fourth water outlet of the control valve at the same time, and the flow rate can be adjusted at the same time according to different conduction angles, so that double-way control can be achieved.

[0052] Example 2: Reference Figures 10 to 19 As shown, this embodiment provides the following implementation methods based on the use of the same five-way valve body and fixed valve plate:

[0053] The fluid control valve in this embodiment includes a five-way valve body 30, a fixed valve disc 10, a movable valve disc 20, a driving device 40 for controlling the rotation of the movable valve disc, a clamping nut 50, and a water inlet joint 60. The fixed valve disc 10, the movable valve disc 20, and the clamping nut 50 are sequentially assembled in the five-way valve body 30 from top to bottom, the fixed valve disc 10 is stationary relative to the five-way valve body 30, and the driving device 40 drives the movable valve disc 20 to rotate so that the movable valve disc 20 and the fixed valve disc 10 form a sealing matching relationship. The five-way valve body 30 is provided with a water inlet 35, a first water outlet 31, a second water outlet 32, a third water outlet 33 and a fourth water outlet 34; four through holes and two blind holes are arranged at six equal angles on the outer rotation circle of the fixed valve disc 10, which are respectively a first through hole 11, a second through hole 12, a first blind hole 13, a third through hole 14, a fourth through hole 15 and a second blind hole 16. The first through hole 11 is communicated with the first water outlet 31 of the five-way valve body, the second through hole 12 is communicated with the second water outlet 32 ​​of the five-way valve body, the third through hole 14 is communicated with the third water outlet 33 of the five-way valve body, and the fourth through hole 15 is communicated with the fourth water outlet 34 of the five-way valve body; a conducting channel 21 is arranged at six equal angles on the outer rotation circle of the movable valve disc 20, and the conducting channel 21 is always connected with the water inlet 35 of the five-way valve body 30.

[0054] The functions of the movable valve plate 20 and the fixed valve plate 10 under different matching conditions are described in detail below.

[0055] Control valve closed: Fig.11 As shown, the movable valve plate 20 is driven to rotate by the driving device 40, so that the conducting channel 21 of the movable valve plate 20 coincides with the blind hole 13 or the blind hole 16 of the fixed valve plate 10, and the water inlet 35 and the four water outlets 31, 32, 33 and 34 of the control valve are not conductive, and each water outlet does not discharge water, and the valve is in a closed state.

[0056] The first water outlet of the control valve can adjust the flow rate: Fig.12 and 13As shown, the movable valve plate 20 is driven to rotate by the driving device 40, so that the conducting channel 21 of the movable valve plate 20 is partially or completely connected with the first through hole 11 of the fixed valve plate 10, and the water inlet 35 and the first water outlet 31 of the control valve are connected, and water flows out of the first water outlet of the control valve, and the flow rate can be adjusted according to different conduction angles.

[0057] The second water outlet of the control valve can adjust the flow rate: Fig.14 and 15 As shown, the movable valve plate 20 is driven to rotate by the driving device 40, so that the conducting channel 21 of the movable valve plate 20 is partially or completely connected with the second through hole 12 of the fixed valve plate 10, and the water inlet 35 and the second water outlet 32 ​​of the control valve are connected, and water flows out of the second water outlet of the control valve, and the flow rate can be adjusted according to different conduction angles.

[0058] The third water outlet of the control valve can adjust the flow rate: Fig.16 and 17 As shown, the movable valve plate 20 is driven to rotate by the driving device 40, so that the conducting channel 21 of the movable valve plate 20 is partially or completely connected with the third through hole 14 of the fixed valve plate 10, and the water inlet 35 and the third water outlet 33 of the control valve are connected, and water flows out of the third water outlet of the control valve, and the flow rate can be adjusted according to different conduction angles.

[0059] The fourth water outlet of the control valve can adjust the flow rate: Fig.18 and 19 As shown, the driving device 40 drives the movable valve plate 20 to rotate, so that the conducting channel 21 of the movable valve plate 20 is partially or completely connected with the fourth through hole 15 of the fixed valve plate 10, and the water inlet 35 and the fourth water outlet 34 of the control valve are connected, and water flows out of the fourth water outlet 34 of the control valve, and the flow rate can be adjusted according to different conduction angles, thereby realizing single-pass control.

[0060] Embodiment 3: Figures 20 to 26As shown, the fluid control valve in this embodiment includes a three-way valve body 90, a fixed valve disc 70, a movable valve disc 80, a driving device 100 for controlling the rotation of the movable valve disc, a clamping nut 110 and a water inlet joint 120. The fixed valve disc 70, the movable valve disc 80 and the clamping nut 110 are sequentially assembled in the valve body 90 from top to bottom, the fixed valve disc 70 is stationary relative to the valve body 90, and the movable valve disc 80 is driven by the driving device 100 to rotate so that the movable valve disc 80 and the fixed valve disc 70 form a sealing matching relationship. The valve body 90 is provided with a water inlet 93, a first water outlet 91, and a second water outlet 92; the fixed valve plate 70 is provided with two through holes and two blind holes arranged at a four-divided angle on the outer rotating circle, namely, a first through hole 71, a first blind hole 72, a second through hole 73, and a second blind hole 74. The first through hole 71 is communicated with the first water outlet 91 of the valve body, and the second through hole 73 is communicated with the second water outlet 92 of the valve body; the movable valve plate 80 is provided with two diagonally distributed conducting channels 81 and 82 arranged at a four-divided angle on the outer rotating circle, and the conducting channels 81 and 82 are always communicated with the water inlet 93 of the valve body 90.

[0061] The functions of the movable valve plate 80 and the fixed valve plate 70 under different matching conditions are described in detail below.

[0062] Control valve closed: Fig.24 As shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the two conducting channels 81 and 82 of the movable valve plate 80 overlap with the two blind holes 72 and 74 of the fixed valve plate 70, and the water inlet 93 and the two water outlets 91 and 92 of the control valve are not conducting. No water flows out of each water outlet, and the valve is in a closed state.

[0063] The first and second water outlets of the control valve discharge water at the same time, and adjust the flow rate at the same time: Fig.25 and 26 As shown, the movable valve plate 80 is driven to rotate by the driving device 100, so that the two conducting channels 81 and 82 of the movable valve plate 80 are partially or completely connected with the first through hole 71 and the second through hole 73 of the fixed valve plate 70, respectively, and the water inlet 93 and the first water outlet 91 and the second water outlet 92 of the control valve are connected, so that the first water outlet 91 and the second water outlet 92 of the control valve can discharge water at the same time, and according to different conduction angles, the flow rate can be adjusted at the same time, and double-way control can be realized at the same time, thereby realizing double-way control.

[0064] Embodiment 4: refer to Figures 27 to 32 As shown, this embodiment provides the following implementation methods based on the use of the same three-way valve body and fixed valve plate:

[0065] The fluid control valve in this embodiment includes a valve body 90, a fixed valve disc 70, a movable valve disc 80, a driving device 100 for controlling the rotation of the movable valve disc, a clamping nut 110, and a water inlet joint 120. The fixed valve disc 70, the movable valve disc 80, and the clamping nut 110 are sequentially assembled in the valve body 90 from top to bottom, the fixed valve disc 70 is stationary relative to the valve body 90, and the movable valve disc 80 is driven by the driving device 100 to rotate so that the movable valve disc 80 forms a sealing fit with the fixed valve disc 70. The valve body 90 is provided with a water inlet 93, a first water outlet 91, and a second water outlet 92; two through holes and two blind holes are arranged at a four-divided angle on the outer rotating circle of the fixed valve plate 70, namely, a first through hole 71, a first blind hole 72, a second through hole 73 and a second blind hole 74, the first through hole 71 is communicated with the first water outlet 91 of the valve body, and the second through hole 73 is communicated with the second water outlet 92 of the valve body; a conducting channel 81 is arranged at a four-divided angle on the outer rotating circle of the movable valve plate 80, and the conducting channel 81 is always communicated with the water inlet 93 of the valve body 90.

[0066] The functions of the movable valve plate 80 and the fixed valve plate 70 under different matching conditions are described in detail below.

[0067] Control valve closed: Fig.28 As shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the conducting channel 81 of the movable valve plate 80 overlaps with the blind hole 72 or the blind hole 74 of the fixed valve plate 70, and the water inlet 93 and the two water outlets 91 and 92 of the control valve are not conducting. No water flows out of each water outlet, and the valve is in a closed state.

[0068] The first water outlet of the control valve can adjust the flow rate: Fig.29 and 30 As shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the conducting channel 81 of the movable valve plate 80 is partially or completely connected with the first through hole 71 of the fixed valve plate 70, and the water inlet 93 and the first water outlet 91 of the control valve are connected, and water flows out of the first water outlet of the control valve, and the flow rate can be adjusted according to different conduction angles.

[0069] The second water outlet of the control valve can adjust the flow rate: Fig.31 and 32 As shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the conducting channel 81 of the movable valve plate 80 is partially or completely connected with the second through hole 73 of the fixed valve plate 70, and the water inlet 93 and the second water outlet 92 of the control valve are connected, and water flows out of the second water outlet 92 of the control valve, and the flow rate can be adjusted according to different conduction angles, thereby realizing single-pass control.

[0070] Among them, since the shapes of the various components of the five-way valve are slightly different from the shapes of the various components of the three-way valve, but the functions implemented are the same, in order to facilitate understanding, the components with the same functions of the five-way valve in this embodiment are marked to distinguish them from the components with the same functions of the three-way valve, such as the fixed valve plate and the movable valve plate, as well as the water inlet, the driving device, the water inlet joint, etc.

[0071] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the present invention, such as changing the number of fixed valve plates and movable valve plates to achieve the opening and closing and flow regulation of three, five, six or other multiple flow channels, should also be regarded as the protection scope of the present invention.

Claims

1. A fluid control valve for irrigation, comprising a valve body, a driving device (40) and a valve flap assembly, wherein the valve body is provided with a water inlet (35) and a water outlet, the valve flap assembly is arranged in the valve body and is used to connect or disconnect the water inlet (35) and the water outlet, the driving device (40) comprises a driving shaft, one end of the driving shaft is linked to an external power source, and the other end penetrates into the valve body and is linked to the valve flap assembly, characterized in that: The valve disc assembly comprises a fixed valve disc (10) and a movable valve disc (20), wherein the fixed valve disc (10) is fixed on the valve body, and the movable valve disc (20) is coaxially rotatably arranged on the fixed valve disc (10), and the movable valve disc (20) is driven by a driving shaft to rotate on the fixed valve disc (10), and a through hole and a blind hole are provided on the fixed valve disc (10), and the through hole is connected to the water outlet, and a conducting channel is provided on the movable valve disc (20), and the conducting channel is connected to the water inlet (35), so that the water inlet (35) and the water outlet are connected or disconnected by overlapping the conducting channel with the through hole or the blind hole, and a plurality of water outlets and the through hole are provided, and the plurality of water outlets correspond to the plurality of through holes one by one, and the conducting channel is connected to the water inlet (35) and the water outlet. The conducting channel is provided with one or more through holes, so as to connect a water inlet (35) and a water outlet or connect a water inlet (35) and a plurality of water outlets when the conducting channel and the through hole coincide with each other. The valve body is a five-way valve body (30). The water outlets include a first water outlet (31), a second water outlet (32), a third water outlet (33) and a fourth water outlet (34). The through holes on the fixed valve plate (10) include a first through hole (11), a second through hole (12), a third through hole (14) and a fourth through hole (15). The first through hole (11), the second through hole (12), the third through hole (14) and the fourth through hole (15) are connected to the first water outlet (31), The second water outlet (32), the third water outlet (33) and the fourth water outlet (34) are connected in a one-to-one correspondence, the blind hole on the fixed valve plate (10) includes a first blind hole (13) and a second blind hole (16), and the conduction channel on the movable valve plate (20) includes a first conduction channel (21) and a second conduction channel (22); when the movable valve plate (20) rotates so that the first conduction channel (21) and the second conduction channel (22) overlap with the first blind hole (13) and the second blind hole (16), the water inlet (35) and the water outlet are in a disconnected state; when the movable valve plate (20) rotates so that the first conduction channel (21) and the second conduction channel (22) overlap with the first blind hole (13) and the second blind hole (16), the water inlet (35) and the water outlet are in a disconnected state. When the first through hole (11) and the third through hole (14) or the second through hole (12) and the fourth through hole (15) are overlapped, the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted. The conducting channel on the movable valve plate (20) is provided with a, when the movable valve plate (20) rotates so that the conducting channel overlaps with the blind hole of the fixed valve plate, the water inlet (35) and the water outlet are in a disconnected state, when the movable valve plate (20) rotates so that the conducting channel overlaps with the first through hole (11), the second through hole (12), the third through hole (14) and the fourth through hole (15) respectively, the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted.

2. A fluid control valve for irrigation, comprising a valve body, a driving device (40) and a valve flap assembly, wherein the valve body is provided with a water inlet (35) and a water outlet, the valve flap assembly is arranged in the valve body and is used to connect or disconnect the water inlet (35) and the water outlet, the driving device (40) comprises a driving shaft, one end of the driving shaft is linked to an external power source, and the other end penetrates into the valve body and is linked to the valve flap assembly, characterized in that: The valve flap assembly comprises a fixed valve disc (10) and a movable valve disc (20), wherein the fixed valve disc (10) is fixed on the valve body, and the movable valve disc (20) is coaxially rotatably arranged on the fixed valve disc (10), and the movable valve disc (20) is driven by a driving shaft to rotate on the fixed valve disc (10), and a through hole and a blind hole are provided on the fixed valve disc (10), wherein the through hole is communicated with the water outlet, and a conducting channel is provided on the movable valve disc (20), wherein the conducting channel is communicated with the water inlet (35), so that water can pass through the conducting channel. The water inlet (35) and the water outlet are connected or disconnected by overlapping with the through hole or the blind hole, the water outlet and the through hole are provided with a plurality of water outlets, and the plurality of water outlets correspond to the plurality of through holes one by one, and the conduction channel is provided with one or more conduction channels, so that when the conduction channel and the through hole overlap, the water inlet (35) and one water outlet are connected or the water inlet (35) and a plurality of water outlets are connected, and the valve body is a three-way valve body (90), and the water outlets include a first water outlet (91) and a second water outlet (92 ), the through holes on the fixed valve plate (10) include a first through hole (71) and a second through hole (73), the first through hole (71) and the second through hole (73) are connected to the first water outlet (91) and the second water outlet (92) in a one-to-one correspondence, the blind holes on the fixed valve plate (10) include a first blind hole (72) and a second blind hole (74), the conduction channel on the movable valve plate (20) includes a first conduction channel (81) and a second conduction channel (82), when the movable valve plate (20) rotates so that the first conduction channel (81) and the second conduction channel (82) coincide with the first blind hole (72) and the second blind hole (74), the water inlet (35) and the water outlet are in a disconnected state, and when the movable valve plate (20) rotates so that the first conduction channel (81) and the second conduction channel (82) coincide with the first through hole (71) and the second through hole (73), the water inlet (35) and the water outlet are in a connected state, and the flow rate is adjusted.

3. The fluid control valve for irrigation according to claim 2, characterized in that: The conducting channel on the movable valve plate (20) is provided with a, when the movable valve plate (20) rotates so that the conducting channel overlaps with the blind hole of the fixed valve plate, the water inlet (35) and the water outlet are in a disconnected state, and when the movable valve plate (20) rotates so that the conducting channel overlaps with the first through hole (71) and the second through hole (73) respectively, the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted.

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