Fluid control valve capable of being used for irrigation

Abstract

The fluid control valve capable of being used for irrigation comprises a valve body, a driving device and a valve clack assembly, the valve clack 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 and rotatably arranged on the fixed valve plate, a through hole and a blind hole are formed in the fixed valve plate, and the through hole is communicated with the blind hole. The movable valve plate is provided with a through hole, the through hole is communicated with the water outlet, the movable valve plate is provided with a communicating channel, the communicating channel is communicated with the water inlet, the through hole is communicated with the water outlet in a one-to-one correspondence mode, and the water inlet and the water outlet are communicated or disconnected in the mode that the communicating channel coincides with the through hole or the blind hole. According to the fluid control valve capable of being used for irrigation, through the arrangement of the fixed valve plate and the movable valve plate, control over flow and opening and closing can be effectively achieved, impurities on the end faces of the two valve plates can be effectively scraped off in the mode that the two valve plates are oppositely abraded, and therefore the fluid control valve has the advantage of self-cleaning the sealing surface.

Description

Technical Field

[0001] The utility model relates to a control valve, and more specifically to a fluid control valve that can be used for irrigation. Background Art

[0002] In the field of agricultural irrigation technology, usually a valve is used to control the opening and closing of a flow channel, resulting in a high cost of the pipeline system and the defect of inconvenient operation at the same time; for the irrigation of a large area of farmland, some use an outlet pile to divide into two or four pipelines, and a valve is installed on each pipeline to control respectively; some use a three-way or five-way valve to control each pipeline. The fluid control valves used in the prior art for agricultural irrigation systems are usually diaphragm valves or soft-sealed ball valves. For an irrigation system using the drip irrigation method, in order to prevent the drip irrigation belt from bursting, the water pressure of the drip irrigation is very low. For a diaphragm valve, sometimes it is very difficult to overcome the elastic force of the return spring, resulting in the situation that the valve cannot be opened, and the diaphragm valve generally uses rubber and plastic seals, which are not resistant to impurities and are prone to jamming and leakage; for a soft-sealed ball valve, generally a plastic ball or a stainless steel ball is sealed with a polytetrafluoroethylene gasket, and there are problems such as the sealing structure is not wear-resistant, easy to age, easy to be jammed by impurities or scratched and leaked. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a fluid control valve, which adopts a planar sealing structure, and the opening and closing member includes a ceramic part processed with high flatness and high hardness, having the characteristics of wear resistance, corrosion resistance, aging resistance, and self-cleaning sealing surface. At the same time, the present utility model realizes the function of opening and closing and flow rate adjustment of two or more pipelines by one valve, and has the beneficial effects of low cost and more convenient operation.

[0004] To achieve the above purpose, the present utility model provides the following technical solution: A fluid control valve that can be used for irrigation, including a valve body, a driving device, and a valve flap assembly. The valve body is provided with an inlet and an outlet. The valve flap assembly is arranged in the valve body and is used to connect or disconnect the inlet and the outlet. It is characterized in that: The valve flap assembly includes a fixed valve plate and a moving valve plate. The fixed valve plate is fixed on the valve body. The moving valve plate is coaxially and rotatably arranged on the fixed valve plate. The moving valve plate is driven by the driving device to rotate on the fixed valve plate. Through holes and blind holes are opened on the fixed valve plate. The through holes are communicated with the outlet. A conduction channel is opened on the moving valve plate. The conduction channel is communicated with the inlet. The through holes and the outlet are in one-to-one correspondence and communicated, so as to connect or disconnect the inlet and the outlet by the way that the conduction channel coincides with the through hole or the blind hole.

[0005] As a further improvement of the present utility model, a plurality of water outlets and through holes are provided. The plurality of water outlets correspond to the plurality of through holes one by one, and one or more conduction channels are provided. When the conduction channel coincides with the through hole, the water inlet is connected to one water outlet or a plurality of water outlets.

[0006] As a further improvement of the present utility model, 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. The first through hole, the second through hole, the third through hole and the fourth through hole are in one-to-one correspondence and communication with the first water outlet, the second water outlet, the third water outlet and the fourth water outlet.

[0007] As a further improvement of the present utility model, the blind holes on the fixed valve plate include a first blind hole and a second blind hole. The conduction channels on the movable valve plate include a first conduction channel and a second conduction channel. When the movable valve plate rotates so that the first conduction channel and the second conduction 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 conduction channel and the second conduction 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 utility model, one conduction channel is provided on the movable valve plate. When the movable valve plate rotates so that the conduction 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 conduction 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 rate is adjusted.

[0009] As another improvement of the present utility model, the valve body is a three-way valve body. The water outlets include a first water outlet and a second water outlet. The through holes on the fixed valve plate include a first through hole and a second through hole. The first through hole and the second through hole are in one-to-one correspondence and communication with the first water outlet and the second water outlet.

[0010] As a further improvement of the above improvement method, the blind holes on the fixed valve plate include a first blind hole and a second blind hole. The conduction channels on the movable valve plate include a first conduction channel and a second conduction channel. When the movable valve plate rotates so that the first conduction channel and the second conduction 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 conduction channel and the second conduction 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, there is a conducting channel on the movable valve plate. 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 high-hardness, high-flatness movable valve plate and a fixed valve plate made of engineering ceramics, and the opening and closing of the flow channel are realized by a combination of through holes and blind holes on the fixed valve plate and a conducting channel on the movable valve plate, so that it 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, reducing costs and making operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the first and second embodiments of the present invention;

[0014] Figure 2 It is a schematic diagram of the valve body of the first and second embodiments of the present utility model;

[0015] Figure 3 It is a top view of the fixed valve disc of the first and second embodiments of the present invention;

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

[0017] Figure 5 This is a schematic diagram of the coordinated state of the movable valve disc and the fixed valve disc in the closed state of the control valve in the first embodiment of the present utility model;

[0018] Figure 6 This is a schematic diagram of the coordinated state of the movable valve disc and the fixed valve disc in the first water outlet and the third water outlet of the control valve when water is flowing simultaneously (the flow rate can be adjusted simultaneously) in the first embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram of the coordinated state of the movable valve disc and the fixed valve disc in the first water outlet and the third water outlet of the control valve when water is flowing simultaneously (maximum flow) in the first embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the coordinated state of the movable valve disc and the fixed valve disc in the first embodiment of the present invention when water is flowing through the second water outlet and the fourth water outlet of the control valve at the same time (maximum flow rate);

[0021] Figure 9It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the second water outlet and the fourth water outlet of the control valve are passing water simultaneously (the flow rate can be adjusted simultaneously) in the first embodiment of the present utility model;

[0022] Figure 10 It is a top view of the movable valve plate in the second embodiment of the present utility model;

[0023] Figure 11 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the closed state of the control valve in the second embodiment of the present utility model;

[0024] Figure 12 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the first water outlet of the control valve is passing water (the flow rate can be adjusted) in the second embodiment of the present utility model;

[0025] Figure 13 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the first water outlet of the control valve is passing water (maximum flow rate) in the second embodiment of the present utility model;

[0026] Figure 14 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the second water outlet of the control valve is passing water (maximum flow rate) in the second embodiment of the present utility model;

[0027] Figure 15 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the second water outlet of the control valve is passing water (the flow rate can be adjusted) in the second embodiment of the present utility model;

[0028] Figure 16 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the third water outlet of the control valve is passing water (the flow rate can be adjusted) in the second embodiment of the present utility model;

[0029] Figure 17 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the third water outlet of the control valve is passing water (maximum flow rate) in the second embodiment of the present utility model;

[0030] Figure 18 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the fourth water outlet of the control valve is passing water (maximum flow rate) in the second embodiment of the present utility model;

[0031] Figure 19 It is a schematic diagram of the cooperation state between the movable valve plate and the fixed valve plate in the state where the fourth water outlet of the control valve is passing water (the flow rate can be adjusted) in the second embodiment of the present utility model;

[0032] Figure 20 It is a schematic structural diagram of the third and fourth embodiments of the present utility model;

[0033] Figure 21 It is a schematic diagram of the valve body of the third and fourth embodiments of the present utility model;

[0034] Figure 22 It is the top view of the fixed valve plate in Embodiment 3 and Embodiment 4 of the present utility model;

[0035] Figure 23 It is the top view of the movable valve plate in Embodiment 3 of the present utility model;

[0036] Figure 24 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 3 of the present utility model when the control valve is in the closed state;

[0037] Figure 25 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 3 of the present utility model when the first water outlet and the second water outlet of the control valve are simultaneously supplying water (the flow rate can be adjusted simultaneously);

[0038] Figure 26 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 3 of the present utility model when the first water outlet and the second water outlet of the control valve are simultaneously supplying water (maximum flow rate);

[0039] Figure 27 It is the top view of the movable valve plate in Embodiment 4 of the present utility model;

[0040] Figure 28 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 4 of the present utility model when the control valve is in the closed state;

[0041] Figure 29 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 4 of the present utility model when the first water outlet of the control valve is supplying water (the flow rate can be adjusted);

[0042] Figure 30 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 4 of the present utility model when the first water outlet of the control valve is supplying water (maximum flow rate);

[0043] Figure 31 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 4 of the present utility model when the second water outlet of the control valve is supplying water (maximum flow rate);

[0044] Figure 32 It is a schematic diagram of the mating state of the movable valve plate and the fixed valve plate in Embodiment 4 of the present utility model when the second water outlet of the control valve is supplying water (the flow rate can be adjusted). Detailed implementation manners

[0045] The following will further elaborate on the present utility model in conjunction with the embodiments given in the accompanying drawings.

[0046] Embodiment 1: Refer to Figures 1 to 9 As shown, the following implementation manners are provided in this embodiment:

[0047] The fluid control valve in this embodiment includes a five-way valve body 30, a fixed valve plate 10, a movable valve plate 20, a driving device 40 for controlling the rotation of the movable valve plate, a compression nut 50, and a water inlet joint 60. The fixed valve plate 10, the movable valve plate 20, and the compression nut 50 are sequentially assembled in the five-way valve body 30 from top to bottom. The fixed valve plate 10 is stationary relative to the five-way valve body 30, and the driving device 40 drives the movable valve plate 20 to rotate so that the movable valve plate 20 forms a sealing fit relationship with the fixed valve plate 10. 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; on the outer circumferential circle of the fixed valve plate 10, four through holes and two blind holes are arranged at six equal angular intervals, which are the first through hole 11, the second through hole 12, the first blind hole 13, the third through hole 14, the fourth through hole 15, and the second blind hole 16 respectively. The first through hole 11 communicates with the first water outlet 31 of the five-way valve body, the second through hole 12 communicates with the second water outlet 32 of the five-way valve body, the third through hole 14 communicates with the third water outlet 33 of the five-way valve body, and the fourth through hole 15 communicates with the fourth water outlet 34 of the five-way valve body; on the outer circumferential circle of the movable valve plate 20, two conduction channels 21 and 22 are arranged at six equal angular intervals in a diagonal distribution, and the conduction channels 21 and 22 are always in communication with the water inlet 35 of the five-way valve body 30.

[0048] The following details the functions generated by the movable valve plate 20 and the fixed valve plate 10 in different mating states.

[0049] The control valve is closed: As Figure 5 shown, by driving the movable valve plate 20 to rotate through the driving device 40, the two conduction channels 21 and 22 of the movable valve plate 20 coincide with the two blind holes 13 and 16 of the fixed valve plate 10, and the water inlet 35 of the control valve and the four water outlets 31, 32, 33, and 34 are all not in communication. No water flows out of each water outlet, and the valve is in the closed state.

[0050] The first water outlet and the third water outlet of the control valve discharge water simultaneously and adjust the flow rate simultaneously: As Figure 6 and 7 shown, by driving the movable valve plate 20 to rotate through the driving device 40, the two conduction channels 21 and 22 of the movable valve plate 20 are partially or completely in communication with the first through hole 11 and the third through hole 14 of the fixed valve plate 10 respectively, the water inlet 35 of the control valve and the first water outlet 31 and the third water outlet 33 are in communication, realizing that the first water outlet and the third water outlet of the control valve discharge water simultaneously, and according to different conduction angles, the flow rate can be adjusted simultaneously.

[0051] The second water outlet and the fourth water outlet of the control valve discharge water simultaneously and adjust the flow rate simultaneously: As Figure 8 and 9As shown in the figure, the driving device 40 drives the movable valve plate 20 to rotate, so that the two conduction channels 21 and 22 of the movable valve plate 20 are respectively partially or completely conducted with the second through hole 12 and the fourth through hole 15 of the fixed valve plate 10, conducting the water inlet 35, the second water outlet 32 and the fourth water outlet 34 of the control valve, realizing the simultaneous water outlet of the second water outlet and the fourth water outlet of the control valve, and the flow rate can be adjusted simultaneously according to different conduction angles, so that dual-channel control can be realized.

[0052] Embodiment 2: Refer to Figures 10 to 19 As shown in the figure, in this embodiment, on the basis of adopting the same five-way valve body and fixed valve plate, the following implementation manners are also provided:

[0053] The fluid control valve in this embodiment includes a five-way valve body 30, a fixed valve plate 10, a movable valve plate 20, a driving device 40 for controlling the rotation of the movable valve plate, a compression nut 50 and a water inlet joint 60. The fixed valve plate 10, the movable valve plate 20 and the compression nut 50 are sequentially assembled in the five-way valve body 30 from top to bottom. The fixed valve plate 10 is stationary relative to the five-way valve body 30, and the driving device 40 drives the movable valve plate 20 to rotate so that the movable valve plate 20 forms a sealing fit relationship with the fixed valve plate 10. 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 on the outer circumferential circle of the fixed valve plate 10 at six equal angular intervals, namely 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 communicates with the first water outlet 31 of the five-way valve body, the second through hole 12 communicates with the second water outlet 32 of the five-way valve body, the third through hole 14 communicates with the third water outlet 33 of the five-way valve body, and the fourth through hole 15 communicates with the fourth water outlet 34 of the five-way valve body; a conduction channel 21 is arranged on the outer circumferential circle of the movable valve plate 20 at six equal angular intervals, and the conduction channel 21 is always communicated with the water inlet 35 of the five-way valve body 30.

[0054] The functions generated by the movable valve plate 20 and the fixed valve plate 10 in different mating states are described in detail below.

[0055] The control valve is closed: As Figure 11 shown in the figure, the driving device 40 drives the movable valve plate 20 to rotate, so that the conduction 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. The water inlet 35 and the four water outlets 31, 32, 33 and 34 of the control valve are not conducted, and no water flows out of each water outlet, and the valve is in the closed state.

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

[0057] The water flows out from the second water outlet of the control valve, and the flow rate can be adjusted. For example, Figure 14 and 15 As shown, the driving device 40 drives the movable valve plate 20 to rotate, so that the conduction channel 21 of the movable valve plate 20 is partially or completely conducted with the second through hole 12 of the fixed valve plate 10, conducting the water inlet 35 and the second water outlet 32 of the control valve, and the water flows out from the second water outlet of the control valve. According to different conduction angles, the flow rate can be adjusted.

[0058] The water flows out from the third water outlet of the control valve, and the flow rate can be adjusted. For example, Figure 16 and 17 As shown, the driving device 40 drives the movable valve plate 20 to rotate, so that the conduction channel 21 of the movable valve plate 20 is partially or completely conducted with the third through hole 14 of the fixed valve plate 10, conducting the water inlet 35 and the third water outlet 33 of the control valve, and the water flows out from the third water outlet of the control valve. According to different conduction angles, the flow rate can be adjusted.

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

[0060] Embodiment 3: For example, Figures 20 to 26As shown in the figure, the fluid control valve in this embodiment includes a three-way valve body 90, a fixed valve plate 70, a movable valve plate 80, a driving device 100 for controlling the rotation of the movable valve plate, a compression nut 110, and a water inlet joint 120. The fixed valve plate 70, the movable valve plate 80, and the compression nut 110 are sequentially assembled in the valve body 90 from top to bottom. The fixed valve plate 70 is stationary relative to the valve body 90, and the driving device 100 drives the movable valve plate 80 to rotate so that the movable valve plate 80 forms a sealing fit relationship with the fixed valve plate 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 on the outer circumferential circle of the fixed valve plate 70 at equal intervals of four equal parts, namely the first through hole 71, the first blind hole 72, the second through hole 73, and the second blind hole 74. The first through hole 71 communicates with the first water outlet 91 of the valve body, and the second through hole 73 communicates with the second water outlet 92 of the valve body; two conduction channels 81 and 82 are arranged on the outer circumferential circle of the movable valve plate 80 at equal intervals of four equal parts and are diagonally distributed. The conduction channels 81 and 82 are always in communication with the water inlet 93 of the valve body 90.

[0061] The following details the functions generated by the movable valve plate 80 and the fixed valve plate 70 in different mating states.

[0062] Control valve closed: As Figure 24 shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the two conduction channels 81 and 82 of the movable valve plate 80 coincide 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 in communication. No water flows out of each water outlet, and the valve is in the closed state.

[0063] The first water outlet and the second water outlet of the control valve discharge water simultaneously and the flow rate is adjusted simultaneously: As Figure 25 and 26 shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the two conduction channels 81 and 82 of the movable valve plate 80 are partially or completely in communication 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 in communication. The first water outlet 91 and the second water outlet 92 of the control valve discharge water simultaneously, and according to different conduction angles, the flow rate can be adjusted simultaneously, and double-pass control can be realized. In this way, double-pass control is realized.

[0064] Embodiment 4: Referring to as Figures 27 to 32 shown, in this embodiment, on the basis of adopting the same three-way valve body and fixed valve plate, the following implementation manners are also provided:

[0065] The fluid control valve in this embodiment includes a valve body 90, a fixed valve plate 70, a movable valve plate 80, a driving device 100 for controlling the rotation of the movable valve plate, a compression nut 110, and a water inlet joint 120. The fixed valve plate 70, the movable valve plate 80, and the compression nut 110 are sequentially assembled in the valve body 90 from top to bottom. The fixed valve plate 70 is stationary relative to the valve body 90, and the driving device 100 drives the movable valve plate 80 to rotate so that the movable valve plate 80 forms a sealing fit with the fixed valve plate 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, namely a first through hole 71, a first blind hole 72, a second through hole 73, and a second blind hole 74, are arranged on the outer circumferential circle of the fixed valve plate 70 at equal intervals of four equal parts. The first through hole 71 communicates with the first water outlet 91 of the valve body, and the second through hole 73 communicates with the second water outlet 92 of the valve body; a conduction channel 81 is arranged on the outer circumferential circle of the movable valve plate 80 at equal intervals of four equal parts, and the conduction channel 81 is always in communication with the water inlet 93 of the valve body 90.

[0066] The functions generated by the movable valve plate 80 and the fixed valve plate 70 in different mating states will be described in detail below.

[0067] Control valve closed: As Figure 28 shown, the driving device 100 drives the movable valve plate 80 to rotate, so that the conduction channel 81 of the movable valve plate 80 coincides 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 conducted. No water flows out of each water outlet, and the valve is in the closed state.

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

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

[0070] Among them, since the shapes of the various components of the five-way valve are slightly different from those of the three-way valve, but the functions they implement are the same, in order to facilitate understanding, in this embodiment, the components with the same functions of the five-way valve 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, drive device, water inlet joint, etc.

[0071] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention, such as changing the number of fixed valve discs and movable valve discs to achieve opening and closing and flow regulation of three, five, six, or other multiple flow channels, should also be considered within the scope of protection of the present invention.

Claims

1. A fluid control valve that can be used for irrigation, comprising a valve body, a driving device (40) and a valve flap assembly. The valve body is provided with a water inlet (35) and a water outlet. The valve flap assembly is arranged inside the valve body and is used to connect or disconnect the water inlet (35) and the water outlet. It is characterized in that: The valve flap assembly includes a fixed valve plate (10) and a movable valve plate (20). The fixed valve plate (10) is fixed on the valve body. The movable valve plate (20) is coaxially and rotatably arranged on the fixed valve plate (10). The movable valve plate (20) is driven by a driving device (40) to rotate on the fixed valve plate (10). Through holes and blind holes are formed in the fixed valve plate (10). The through holes are communicated with the water outlet. A conduction channel is formed in the movable valve plate (20). The conduction channel is communicated with the water inlet (35). The water inlet (35) and the water outlet are communicated or disconnected by the way that the conduction channel coincides with the through hole or the blind hole.

2. The fluid control valve for irrigation according to claim 1, characterized in that: There are multiple water outlets and through holes. The multiple water outlets correspond to the multiple through holes one by one. There is one or more conduction channels. When the conduction channel coincides with the through hole, the water inlet (35) is connected to one water outlet or multiple water outlets.

3. The fluid control valve for irrigation according to claim 2, characterized in that: 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 (13) and a fourth through hole (14). The first through hole (11), the second through hole (12), the third through hole (13) and the fourth through hole (14) are in one-to-one correspondence and communication with the first water outlet (31), the second water outlet (32), the third water outlet (33) and the fourth water outlet (34).

4. The fluid control valve for irrigation according to claim 3, characterized in that: The blind holes on the fixed valve plate (10) include a first blind hole (15) and a second blind hole (16). The conduction channels on the movable valve plate (20) include 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) coincide with the first blind hole (15) 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) coincide with the first through hole (11) and the third through hole (13) or the second through hole (12) and the fourth through hole (14), the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted.

5. The fluid control valve for irrigation according to claim 3, characterized in that: There is one conduction channel on the movable valve plate (20). When the movable valve plate (20) rotates so that the conduction channel coincides 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 conduction channel coincides with the first through hole (11), the second through hole (12), the third through hole (13) and the fourth through hole (14) respectively, the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted.

6. The fluid control valve for irrigation according to claim 2, characterized in that: The valve body is a three-way valve body (90). The water outlets include a first water outlet (31) and a second water outlet (32). The through holes on the fixed valve plate (10) include a first through hole (11) and a second through hole (12). The first through hole (11) and the second through hole (12) are in one-to-one correspondence and communication with the first water outlet (31) and the second water outlet (32).

7. The fluid control valve for irrigation according to claim 6, characterized in that: The blind holes on the fixed valve plate (10) include a first blind hole (15) and a second blind hole (16), and the conduction channels on the movable valve plate (20) include 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) coincide with the first blind hole (15) 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) coincide with the first through hole (11) and the second through hole (12), the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted.

8. The fluid control valve for irrigation according to claim 6, characterized in that: There is one conduction channel on the movable valve plate (20). When the movable valve plate (20) rotates so that the conduction channel coincides 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 conduction channel coincides with the first through hole (11) and the second through hole (12) respectively, the water inlet (35) and the water outlet are in a connected state and the flow rate is adjusted.

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