Electric ball valve for fertilization and differential-pressure fertilization system

Abstract

An electric ball valve (100) for fertilization and a differential-pressure fertilization system (1). The electric ball valve (100) comprises: a valve body (110), provided with a first liquid inlet (111), a first liquid outlet (112), and a first communication port (113); a valve core (120), arranged in the valve body (110), wherein the valve core (120) is provided with a second liquid inlet (121) and a second liquid outlet (122), and the second liquid outlet (122) is communicated with the second liquid inlet (121) inside the valve core (120); and a driving module, transmittingly connected to the valve core (120) to drive the valve core (120) to rotate, so that the electric ball valve (100) can be switched between a first state and a second state. When the electric ball valve (100) is in the first state, the second liquid inlet (121) is communicated with the first liquid inlet (111), the second liquid outlet (122) is communicated with the first liquid outlet (112), and the first communication port (113) is completely closed. When the electric ball valve (100) is in the second state, the second liquid inlet (121) is simultaneously communicated with the first liquid inlet (111) and the first communication port (113), the second liquid outlet (122) is communicated with the first liquid outlet (112), and the first liquid outlet (112) is partially closed.

Description

Electric ball valve and pressure differential fertilization system for fertilization

[0001] The present disclosure claims priority to Chinese Patent Application No. 202411385760.9, filed on September 30, 2024, and entitled "Electric ball valve and pressure differential fertilization system for fertilization", and Chinese Patent Application No. 202422409575.0, filed on September 30, 2024, and entitled "Electric ball valve and pressure differential fertilization system for fertilization", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the field of agricultural devices and sustainable agricultural technology, and in particular, to an electric ball valve and pressure differential fertilization system for fertilization. BACKGROUND

[0003] Water and fertilizer integration technology, also known as water-saving irrigation and fertilization technology, is a modern advanced agricultural technology developed by combining drip irrigation with fertilization. This technology mainly uses the water in the drip irrigation system as a carrier to achieve water and fertilizer integration and management, and to supply water and fertilizer to crops in an optimized combination state.

[0004] Water-saving irrigation and fertilization technology is mainly realized through a water-saving irrigation and fertilization system. In related technologies, the water-saving irrigation and fertilization system generally consists of a liquid storage tank (fertilizer tank), a water inlet pipe, a fertilizer supply pipe, a pressure regulating valve, etc. Among them, the two thin pipes (bypass pipes) of the fertilizer tank are connected to the main pipeline. The fertilizer tank is fertilized by pressure difference, so in addition to setting a pressure regulating valve on the main pipeline, a regulating valve (ball valve or gate valve) needs to be set on the connection node between the two thin pipes or on the two thin pipes respectively, to generate a smaller pressure difference, so that part of the water in the main pipeline flows into the fertilizer tank. After the fertilizer solution is obtained by dissolving the fertilizer in the tank, the fertilizer solution reenters the main pipeline through the other thin pipe, realizing pressure differential fertilization operation. However, it is found in actual use that this pressure differential fertilization method needs to control the operation of multiple valves simultaneously to realize irrigation and pressure differential fertilization control, which has many operation steps and easily brings many inconveniences to relevant operating personnel. Since multiple valves are needed, it increases the parts and materials, which is not conducive to resource saving. SUMMARY

[0005] The purpose of the present disclosure includes, for example, providing an electric ball valve and pressure differential fertilization system for fertilization, aiming to improve the existing pressure differential fertilization method, which needs to control the operation of multiple valves simultaneously to realize irrigation and pressure differential fertilization control, which has many operation steps and easily brings many inconveniences to relevant operating personnel.

[0006] To this end, the present disclosure provides an electric ball valve for fertilization, comprising a valve body, a valve core and a driving module, wherein,

[0007] The valve body is provided with a first liquid inlet, a first liquid outlet and a first communication port, and the first communication port is arranged adjacent to the first liquid inlet;

[0008] The valve core is built-in in the valve body, and the valve core is provided with a second liquid inlet and a second liquid outlet, and the second liquid outlet is in communication with the second liquid inlet inside the valve core;

[0009] The driving module is in transmission connection with the valve core to drive the valve core to rotate, so that the electric ball valve can be switched between a first state and a second state;

[0010] When the electric ball valve is in the first state, the second liquid inlet is in communication with the first liquid inlet, the second liquid outlet is in communication with the first liquid outlet, and the first communication port is completely closed; when the electric ball valve is in the second state, the second liquid inlet is in communication with the first liquid inlet and the first communication port at the same time, the second liquid outlet is in communication with the first liquid outlet, and the first liquid outlet is partially closed.

[0011] Optionally, in some embodiments of the present disclosure, the opening direction of the first liquid inlet, the opening direction of the first liquid outlet and the opening direction of the first communication port are all one of the radial directions of a target circle, and the target circle is a circle in which the rotation path of the valve core is located.

[0012] Optionally, in some embodiments of the present disclosure, the first liquid inlet and the first liquid outlet are arranged in opposite radial directions of the target circle, and the inside of the valve core is provided with a liquid passage extending in the radial direction of the target circle, and the second liquid outlet is in communication with the second liquid inlet through the liquid passage inside the valve core.

[0013] Optionally, in some embodiments of the present disclosure, the valve body is provided with a liquid inlet pipe joint, and the first liquid inlet is arranged in the liquid inlet pipe joint; and / or,

[0014] The valve body is provided with a liquid outlet pipe joint, and the first liquid outlet is arranged in the liquid outlet pipe joint; and / or,

[0015] The valve body is provided with a first communication pipe joint, and the first communication port is arranged in the first communication pipe joint.

[0016] Optionally, in some embodiments of the present disclosure, the second liquid inlet is larger than the second liquid outlet.

[0017] Optionally, in some embodiments of the present disclosure, a control box is further included, the control box is connected with the valve body, the driving module is arranged on the control box, the valve core includes a first connecting piece, the driving module includes a second connecting piece, the first connecting piece and the second connecting piece are connected, and the driving module drives the second connecting piece to rotate to drive the valve core to rotate relative to the valve body.

[0018] In addition, the present disclosure further provides an electric ball valve for fertilization, including a valve body, a valve core and a driving module, wherein,

[0019] The valve body is provided with a first liquid inlet, a first liquid outlet, a first communication port and a second communication port, the first communication port and the second communication port are respectively located on both sides of the first liquid inlet and are arranged adjacent to the first liquid inlet;

[0020] The valve core is built-in in the valve body, the valve core is provided with a second liquid inlet and a second liquid outlet, the second liquid outlet is communicated with the second liquid inlet in the interior of the valve core;

[0021] The driving module is in transmission connection with the valve core to drive the valve core to rotate, so that the electric ball valve can be switched between a first state, a second state and a third state;

[0022] When the electric ball valve is in the first state, the second liquid inlet is communicated with the first liquid inlet, the second liquid outlet is communicated with the first liquid outlet, and the first communication port and the second communication port are all closed; when the electric ball valve is in the second state, the second liquid inlet is simultaneously communicated with the first liquid inlet and the first communication port, the second liquid outlet is communicated with the first liquid outlet, the second communication port is all closed, and the first liquid outlet is partially closed; when the electric ball valve is in the third state, the second liquid inlet is simultaneously communicated with the first liquid inlet and the second communication port, the second liquid outlet is communicated with the first liquid outlet, the first communication port is all closed, and the first liquid outlet is partially closed.

[0023] Optionally, in some embodiments of the present disclosure, the opening direction of the first liquid inlet, the opening direction of the first liquid outlet, the opening direction of the first communication port and the opening direction of the second communication port are all one of the radial directions of a target circle, the target circle is a circle where the rotation path of the valve core is located.

[0024] Optionally, in some embodiments of the present disclosure, the first liquid inlet and the first liquid outlet are arranged in opposite radial directions of the target circle, the interior of the valve core is provided with a liquid passage extending in the radial direction of the target circle, and the second liquid outlet is communicated with the second liquid inlet in the interior of the valve core through the liquid passage.

[0025] Optionally, in some embodiments of the present disclosure, the valve body is provided with a liquid inlet pipe joint, and the first liquid inlet is arranged in the liquid inlet pipe joint; and / or,

[0026] the valve body is provided with a liquid outlet pipe joint, and the first liquid outlet is arranged in the liquid outlet pipe joint; and / or,

[0027] the valve body is provided with a first communication pipe joint, and the first communication port is arranged in the first communication pipe joint; and / or,

[0028] the valve body is provided with a second communication pipe joint, and the second communication port is arranged in the second communication pipe joint.

[0029] Optionally, in some embodiments of the present disclosure, the second liquid inlet is larger than the second liquid outlet.

[0030] Optionally, in some embodiments of the present disclosure, a control box is further included, the control box is connected with the valve body, the driving module is arranged on the control box, the valve core includes a first connecting piece, the driving module includes a second connecting piece, the first connecting piece and the second connecting piece are connected, and the driving module drives the second connecting piece to rotate, so as to drive the valve core to rotate relative to the valve body.

[0031] In addition, the present disclosure further provides a pressure differential type fertilization system, which includes a liquid inlet pipeline, a liquid outlet pipeline, a first fertilizer storage container, and the above-mentioned electric ball valve, wherein,

[0032] the liquid inlet pipeline is in communication with the first liquid inlet;

[0033] the liquid outlet pipeline is in communication with the first liquid outlet, and is used for outputting liquid required for irrigation or fertilization;

[0034] the first fertilizer storage container is provided with a third liquid inlet and a first fertilizer outlet, the third liquid inlet is in communication with the first communication port, and the first fertilizer outlet is in communication with the first liquid outlet or the liquid outlet pipeline.

[0035] Optionally, in some embodiments of the present disclosure, a third communication port is further included, the third communication port is used for being in communication with the first fertilizer outlet, and the third communication port is arranged on the periphery of the first liquid outlet or on the pipe wall of the liquid outlet pipeline.

[0036] Optionally, in some embodiments of the present disclosure, a first fertilizer outlet pipeline with a first stop valve is further included, and the first fertilizer outlet and the third communication port are in communication through the first fertilizer outlet pipeline.

[0037] In addition, the differential pressure type fertilization system provided by the embodiments of the present disclosure comprises a liquid inlet pipeline, a liquid outlet pipeline, a first fertilizer storage container, a second fertilizer storage container and the electric ball valve.

[0038] The liquid inlet pipeline is in communication with the first liquid inlet.

[0039] The liquid outlet pipeline is in communication with the first liquid outlet and is used for outputting liquid required for irrigation or fertilization.

[0040] The first fertilizer storage container is provided with a third liquid inlet and a first fertilizer outlet, the third liquid inlet is in communication with the first communication port, and the first fertilizer outlet is in communication with the first liquid outlet or the liquid outlet pipeline.

[0041] The second fertilizer storage container is provided with a fourth liquid inlet and a second fertilizer outlet, the fourth liquid inlet is in communication with the second communication port, and the second fertilizer outlet is in communication with the first liquid outlet or the liquid outlet pipeline.

[0042] Optionally, in some embodiments of the present disclosure, a third communication port is further included, the third communication port is used for being in communication with the first fertilizer outlet, and the third communication port is arranged on the side of the first liquid outlet or the wall of the liquid outlet pipeline.

[0043] Optionally, in some embodiments of the present disclosure, a first fertilizer outlet pipeline with a first stop valve is further included, the first fertilizer outlet and the third communication port are in communication through the first fertilizer outlet pipeline.

[0044] Optionally, in some embodiments of the present disclosure, a fourth communication port is further included, the fourth communication port is used for being in communication with the second fertilizer outlet, and the fourth communication port is arranged on the side of the first liquid outlet or the wall of the liquid outlet pipeline.

[0045] Optionally, in some embodiments of the present disclosure, a second fertilizer outlet pipeline with a second stop valve is further included, the second fertilizer outlet and the fourth communication port are in communication through the second fertilizer outlet pipeline.

[0046] The technical scheme provided by the present disclosure provides an electric ball valve for fertilization and a differential pressure type fertilization system. The electric ball valve comprises a valve body, a valve core and a driving module. The valve body is provided with a first liquid inlet, a first liquid outlet and a first communication port, and the first communication port is arranged adjacent to the first liquid inlet. The valve core is built in the valve body, and the valve core is provided with a second liquid inlet and a second liquid outlet. The second liquid outlet is communicated with the second liquid inlet inside the valve core. The driving module is in transmission connection with the valve core to drive the valve core to rotate, so that the electric ball valve can be switched between a first state and a second state. In this way, when the electric ball valve is applied to the differential pressure type fertilization system, the valve core can be rotated to make the electric ball valve in the first state. At this time, since the second liquid inlet is communicated with the first liquid inlet, the second liquid outlet is communicated with the first liquid outlet, and the first communication port is completely closed, the liquid inlet pipe in the main pipe of the differential pressure type fertilization system is communicated with the liquid outlet pipe through the electric ball valve, the liquid (which can be water in particular) in the liquid inlet pipe flows into the liquid outlet pipe through the electric ball valve, and then is delivered to the drip irrigation system through the liquid outlet pipe to complete the corresponding irrigation control. The valve core can also be rotated to make the electric ball valve in the second state. At this time, the second liquid inlet is communicated with the first liquid inlet and the first communication port, the second liquid outlet is communicated with the first liquid outlet, and the first liquid outlet is partially closed, so that the liquid pressure at the liquid outlet of the electric ball valve is lower than that at the liquid inlet, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipe flows to the fertilizer storage container through the first communication port. After the fertilizer solution is obtained by dissolving the fertilizer in the container, the fertilizer solution reflows into the liquid outlet pipe of the main pipe to be delivered to the drip irrigation system through the liquid outlet pipe to complete the corresponding differential pressure fertilization control. In this way, the technical scheme can realize irrigation and differential pressure fertilization control of the differential pressure type fertilization system at the same time through only one electric ball valve, thereby greatly reducing the operation steps and bringing great convenience to the relevant operating personnel. It can be seen that the technical scheme can effectively improve the existing differential pressure fertilization method, which needs to control multiple valves to realize irrigation and differential pressure fertilization control, and the operation steps are complicated, which easily brings many technical problems to the relevant operating personnel. The technical scheme greatly integrates irrigation and fertilization and reduces unnecessary repetitive labor. The present disclosure integrates irrigation and fertilization through a system, greatly reduces the construction cost and labor operation burden of agricultural production, and has unique technical advantages in reducing fertilizer waste, improving fertilizer utilization rate and reducing environmental impact. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical scheme in the embodiments of the present disclosure or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creating labor.

[0048] Fig. 1 is a structural schematic diagram of an electric ball valve according to an embodiment of the present disclosure;

[0049] Fig. 2 is a partial structural schematic diagram of the electric ball valve shown in Fig. 1;

[0050] Fig. 3 is a split structural schematic diagram of the electric ball valve shown in Fig. 2;

[0051] Fig. 4 is a cross-sectional structural schematic diagram of the electric ball valve shown in Fig. 2 in a first state;

[0052] Fig. 5 is a cross-sectional structural schematic diagram of the electric ball valve shown in Fig. 2 in a second state;

[0053] Fig. 6 is a structural schematic diagram of a pressure-differential fertilization system according to an embodiment of the present disclosure.

[0054] Explanation of reference numerals:

[0055] 1 - pressure-differential fertilization system; 100 - electric ball valve; 110 - valve body; 111 - first liquid inlet; 112 - first liquid outlet; 113 - first communication port; 114 - second communication port; 115 - liquid inlet pipe joint; 116 - liquid outlet pipe joint; 117 - first communication pipe joint; 118 - second communication pipe joint; 120 - valve core; 121 - second liquid inlet; 122 - second liquid outlet; 123 - liquid passage; 124 - first connecting piece; 130 - control box; 200 - liquid inlet pipeline; 300 - liquid outlet pipeline; 400 - first fertilizer storage container; 500 - first fertilizer outlet pipeline; 600 - second fertilizer storage container; 700 - second fertilizer outlet pipeline.

[0056] The implementation, functional features and advantages of the present disclosure will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0058] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present disclosure are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0059] In addition, the descriptions involving "first", "second" and the like in the present disclosure are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present disclosure.

[0060] In one embodiment, as shown in FIGS. 1-5, the present embodiment provides an electric ball valve 100 for fertilization, which can specifically include a valve body 110, a valve core 120, and a driving module (not shown), wherein the valve body 110 is provided with a first liquid inlet 111, a first liquid outlet 112, and a first communication port 113, and the first communication port 113 is arranged adjacent to the first liquid inlet 111. The valve core 120 is built in the valve body 110, and the valve core 120 is provided with a second liquid inlet 121 and a second liquid outlet 122, and the second liquid outlet 122 is communicated with the second liquid inlet 121 inside the valve core 120. The driving module is in transmission connection with the valve core 120 to drive the valve core 120 to rotate, so that the electric ball valve 100 can be switched between a first state and a second state. Wherein, when the electric ball valve 100 is in the first state, the second liquid inlet 121 is communicated with the first liquid inlet 111, the second liquid outlet 122 is communicated with the first liquid outlet 112, and the first communication port 113 is completely closed. When the electric ball valve 100 is in the second state, the second liquid inlet 121 is communicated with the first liquid inlet 111 and the first communication port 113 at the same time, the second liquid outlet 122 is communicated with the first liquid outlet 112, and the first liquid outlet 112 is partially closed.

[0061] It can be understood that the electric ball valve 100 of the embodiments of the present disclosure can be specifically applied to the pressure differential type fertilization system 1 to simultaneously realize the control of irrigation and pressure differential fertilization of the pressure differential type fertilization system 1. In order to facilitate the installation and rotation of the valve core 120 in the valve body 110, the inside of the valve body 110 is generally hollow to form an installation cavity inside to install the valve core 120. At the same time, the inside of the first liquid inlet 111, the inside of the first liquid outlet 112 and the inside of the first communication port 113 are generally communicated with the installation cavity. In order to better connect the outside of the first liquid inlet 111, the outside of the first liquid outlet 112 and the outside of the first communication port 113 with the corresponding pipeline or pipeline, the shape of the first liquid inlet 111, the shape of the first liquid outlet 112 and the shape of the first communication port 113 are generally circular, or other shapes that can better realize the connection of the corresponding pipeline or pipeline and the installation cavity, including but not limited to semicircular, elliptical, polygonal and the like. And since the second liquid inlet 121 needs to be connected with the first liquid inlet 111 or simultaneously connected with the first liquid inlet 111 and the first communication port 113, and the second liquid outlet 122 needs to be connected with the first liquid outlet 112, the shape of the second liquid inlet 121 and the shape of the second liquid outlet 122 are also generally circular, or other shapes that can better facilitate the connection of the two, including but not limited to semicircular, elliptical, polygonal and the like. The valve core 120 mentioned above is generally spherical, or other rotatable shapes, including but not limited to semispherical, cylindrical, polygonal column and the like. In order to facilitate the valve core 120 to have enough rotation space in the installation cavity, the shape of the main part of the installation cavity is generally adapted to the shape of the valve core 120, and the dimensions of each aspect are slightly larger than the valve core 120 to ensure that the valve core 120 can smoothly rotate in the installation cavity.

[0062] In addition, as shown in FIG. 4, the above-mentioned that when the electric ball valve 100 is in the first state, the second inlet port 121 is connected to the first inlet port 111, the second outlet port 122 is connected to the first outlet port 112, and the first communication port 113 is completely closed generally refers to that in the first state, the second inlet port 121 is directly opposite to the first inlet port 111, so that the first inlet port 111 is completely opened and connected to the second inlet port 121; the second outlet port 122 is directly opposite to the first outlet port 112, so that the first outlet port 112 is completely opened and connected to the second outlet port 122; the first communication port 113 is directly opposite to the part of the valve core 120 without opening, so that the first communication port 113 is completely blocked by the valve core 120, that is, it cannot be connected to the above-mentioned installation cavity. Similarly, as shown in FIG. 5, the above-mentioned that when the electric ball valve 100 is in the second state, the second inlet port 121 is connected to the first inlet port 111 and the first communication port 113 at the same time, the second outlet port 122 is connected to the first outlet port 112, and the first outlet port 112 is partially closed generally refers to that in the second state, one part of the second inlet port 121 is aligned with the first inlet port 111, and the other part is aligned with the first communication port 113, so that the first inlet port 111 and the first communication port 113 are both partially opened and connected to the second inlet port 121 at the same time; one part of the second outlet port 122 is aligned with the first outlet port 112, so that the first outlet port 112 is connected to the second outlet port 122 at the same time, and part of the first outlet port 112 is blocked by the valve core 120, that is, it is in a partially closed state.

[0063] In this way, the electric ball valve 100 provided by the embodiment of the present disclosure, through the above structural arrangement, when the electric ball valve 100 is applied to the pressure differential type fertilization system 1, it can be rotated by the valve core 120, so that the electric ball valve 100 is in the first state shown in FIG. 4, at this time, since the second liquid inlet 121 is connected to the first liquid inlet 111, the second liquid outlet 122 is connected to the first liquid outlet 112, and the first communication port 113 is completely closed, so that the liquid inlet pipeline 200 in the main pipeline of the pressure differential type fertilization system 1 is connected to the liquid outlet pipeline 300 through the electric ball valve 100, the liquid (which can be water in particular) in the liquid inlet pipeline 200 flows into the liquid outlet pipeline 300 through the electric ball valve 100, and then is delivered to the drip irrigation system through the liquid outlet pipeline 300, to complete the corresponding irrigation control. It can also be rotated by the valve core 120, so that the electric ball valve 100 is in the second state shown in FIG. 5, at this time, the second liquid inlet 121 is connected to the first liquid inlet 111 and the first communication port 113 at the same time, the second liquid outlet 122 is connected to the first liquid outlet 112, and the first liquid outlet 112 is partially closed, so that the liquid pressure at the outlet of the electric ball valve 100 is lower than that at the liquid inlet, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipeline 200 flows to the fertilizer storage container through the first communication port 113, after the fertilizer in the dissolving container is dissolved to obtain a fertilizer solution, the fertilizer solution reflows into the liquid outlet pipeline 300 of the main pipeline, to be delivered to the drip irrigation system through the liquid outlet pipeline 300, to complete the corresponding pressure differential fertilization control. It can be seen that the electric ball valve 100 of the embodiment of the present disclosure can simultaneously realize the irrigation and pressure differential fertilization control of the pressure differential type fertilization system 1, thereby greatly reducing the related operation steps and bringing great convenience to the relevant operating personnel. The manual operation is reduced and the fertilizer utilization rate is improved, thereby bringing significant economic benefits to agricultural producers.

[0064] In the optional embodiment, as shown in FIG. 4 and FIG. 5, the opening direction of the first liquid inlet 111, the opening direction of the first liquid outlet 112, and the opening direction of the first communication port 113 are all one of the radial directions of the target circle, and the target circle is the circle where the rotation path of the valve core 120 is located. In this way, through the above structural arrangement, when the driving module drives the valve core 120 to rotate along the circumferential direction of the target circle, it can be well ensured that the first liquid inlet 111 and the first communication port 113 are both located on the opening direction of the second liquid inlet 121 on the valve core 120, and the first liquid outlet 112 is located on the opening direction of the second liquid outlet 122 on the valve core 120, thereby enabling the electric ball valve 100 in the example to be well switched between the above first state and the second state.

[0065] It can be understood that the rotation path of the valve core 120 in the present example can be any point on the valve core 120 that moves along a travel route when the valve core 120 rotates. Since the valve core 120 only rotates a small angle (generally less than 90 degrees) regardless of whether it rotates clockwise or counterclockwise, it does not rotate 360 degrees. Therefore, the travel route is generally only a small arc on the target circle.

[0066] In an optional embodiment, as shown in FIGS. 4 and 5, the first liquid inlet 111 and the first liquid outlet 112 are arranged in a radial direction of the target circle. The valve core 120 is internally provided with a liquid passage 123 extending in the radial direction of the target circle. The second liquid outlet 122 is in communication with the second liquid inlet 121 through the liquid passage 123 in the interior of the valve core 120. In this way, through the above structure, when the electric ball valve 100 is in the first state, the opening direction of the first liquid inlet 111, the opening direction of the second liquid inlet 121, the opening direction of the second liquid outlet 122, the opening direction of the first liquid outlet 112, and the extension direction of the liquid passage 123 can all be consistent, so that the liquid can pass through the first liquid inlet 111, the second liquid inlet 121, the liquid passage 123, the second liquid outlet 122, and the first liquid outlet 112 in a straight line, thereby ensuring the irrigation control effect of the electric ball valve 100 in the first state.

[0067] In an optional embodiment, as shown in FIGS. 1 to 3, the valve body 110 can be provided with a liquid inlet pipe joint 115, and the first liquid inlet 111 is arranged in the liquid inlet pipe joint 115. In this way, through the structure of the liquid inlet pipe joint 115, the installation and connection between the valve body 110 and the liquid inlet pipe 200 can be more convenient and firm, and the communication between the liquid inlet pipe 200 and the first liquid inlet 111 can be quickly realized.

[0068] In an optional embodiment, as shown in FIGS. 1 to 3, the valve body 110 can be provided with a liquid outlet pipe joint 116, and the first liquid outlet 112 is arranged in the liquid outlet pipe joint 116. In this way, through the structure of the liquid outlet pipe joint 116, the installation and connection between the valve body 110 and the liquid outlet pipe 300 can be more convenient and firm, and the communication between the liquid outlet pipe 300 and the first liquid outlet 112 can be quickly realized.

[0069] In an optional embodiment, as shown in FIGS. 1 to 3, the valve body 110 can be provided with a first communication pipe joint 117, and the first communication port 113 is arranged in the first communication pipe joint 117. In this way, through the structure of the first communication pipe joint 117, the installation and connection between the valve body 110 and the first communication pipe can be more convenient and firm, and the communication between the first communication pipe and the first liquid outlet 112 can be quickly realized.

[0070] In an optional embodiment, as shown in FIG. 4 and FIG. 5, the second liquid inlet 121 is larger than the second liquid outlet 122. In this way, through the above structural arrangement, when the electric ball valve 100 is in the second state, the second liquid inlet 121 can better simultaneously communicate the first liquid inlet 111 and the first communication port 113.

[0071] In an optional embodiment, as shown in FIG. 1 to FIG. 3, the electric ball valve 100 further comprises a control box 130, the control box 130 is connected with the valve body 110, the drive module is arranged on the control box 130, the valve core 120 comprises a first connecting piece 124, the drive module comprises a second connecting piece, the first connecting piece 124 and the second connecting piece are connected, the drive module drives the second connecting piece to rotate, so as to drive the valve core 120 to rotate relative to the valve body 110. In this way, through the above structural arrangement, the control box 130 can drive the valve core 120 to rotate relative to the valve body 110 according to the actual control needs through the drive module, so as to realize the switching of the electric ball valve 100 between the first state and the second state.

[0072] It can be understood that the drive module in the present example can be a motor power module, at this time, the first connecting piece 124 can be a transmission rod, and the second connecting piece can be a motor shaft, both of which can be coaxially connected through a structure such as a shaft coupling, so that when the motor power module drives the motor shaft to rotate, the transmission rod is synchronously driven to rotate, and then the valve core 120 is driven to rotate relative to the valve body 110 through the transmission rod.

[0073] In an optional embodiment, as shown in FIGS. 1-5, the valve body 110 of the electric ball valve 100 is further provided with a second communication port 114, in which the first communication port 113 and the second communication port 114 are respectively located on both sides of the first liquid inlet port 111 and are both arranged adjacent to the first liquid inlet port 111. The driving module drives the valve core 120 to rotate, which can not only enable the electric ball valve 100 to switch between the first state and the second state, but also enable the electric ball valve 100 to switch to the third state or enable the electric ball valve 100 to switch from the third state back to the first state or the second state. When the electric ball valve 100 is in the first state, the second liquid inlet port 121 is connected to the first liquid inlet port 111, the second liquid outlet port 122 is connected to the first liquid outlet port 112, and the first communication port 113 and the second communication port 114 are all closed. When the electric ball valve 100 is in the second state, the second liquid inlet port 121 is connected to the first liquid inlet port 111 and the first communication port 113, the second liquid outlet port 122 is connected to the first liquid outlet port 112, the second communication port 114 is all closed, and the first liquid outlet port 112 is partially closed. When the electric ball valve 100 is in the third state, the second liquid inlet port 121 is connected to the first liquid inlet port 111 and the second communication port 114, the second liquid outlet port 122 is connected to the first liquid outlet port 112, the first communication port 113 is all closed, and the first liquid outlet port 112 is partially closed. In this way, by adding the second communication port 114, when the electric ball valve 100 is applied to the pressure differential fertilization system 1, the electric ball valve 100 can be in the third state by rotating the valve core 120, in which the second liquid inlet port 121 is connected to the first liquid inlet port 111 and the second communication port 114, the second liquid outlet port 122 is connected to the first liquid outlet port 112, the first communication port 113 is all closed, and the first liquid outlet port 112 is partially closed, so that the liquid pressure at the outlet port of the electric ball valve 100 is lower than the liquid pressure at the inlet port, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipeline 200 flows to another fertilizer container through the second communication port 114, after the fertilizer in the container is dissolved to obtain a fertilizer solution, the fertilizer solution reflows into the liquid outlet pipeline 300 of the main pipeline to be delivered to the irrigation system through the liquid outlet pipeline 300, to complete the corresponding pressure differential fertilization control.

[0074] It can be understood that the first state mentioned in the example refers to the second inlet port 121 being aligned with the first inlet port 111, so that the first inlet port 111 is completely opened and communicated with the second inlet port 121; the second outlet port 122 is aligned with the first outlet port 112, so that the first outlet port 112 is completely opened and communicated with the second outlet port 122; the first communication port 113 and the second communication port 114 are aligned with the part of the valve core 120 without openings, so that the first communication port 113 and the second communication port 114 are completely blocked by the valve core 120, and are in a completely closed state, i.e. cannot be communicated with the installation cavity mentioned above. Similarly, the second state mentioned in the example refers to the second inlet port 121 being aligned with the first inlet port 111 and the first communication port 113 at the same time, the second outlet port 122 being communicated with the first outlet port 112, and the second communication port 114 being completely closed and the first outlet port 112 being partially closed, which means that in the second state, part of the second inlet port 121 is aligned with the first inlet port 111, and the other part is aligned with the first communication port 113, so that the first inlet port 111 and the first communication port 113 are both partially opened and communicated with the second inlet port 121 at the same time; part of the second outlet port 122 is aligned with the first outlet port 112, so that the first outlet port 112 is communicated with the second outlet port 122 at the same time, and part of the first outlet port 112 is blocked by the valve core 120, which is in a partially closed state; the second communication port 114 is aligned with the part of the valve core 120 without openings, so that the second communication port 114 is completely blocked by the valve core 120, which is in a completely closed state, i.e. cannot be communicated with the installation cavity mentioned above. Similarly, the third state mentioned in the example refers to the second inlet port 121 being communicated with the first inlet port 111 and the second communication port 114 at the same time, the second outlet port 122 being communicated with the first outlet port 112, the first communication port 113 being completely closed, and the first outlet port 112 being partially closed, which means that in the third state, part of the second inlet port 121 is aligned with the first inlet port 111, and the other part is aligned with the second communication port 114, so that the first inlet port 111 and the second communication port 114 are both partially opened and communicated with the second inlet port 121 at the same time; part of the second outlet port 122 is aligned with the first outlet port 112, so that the first outlet port 112 is communicated with the second outlet port 122 at the same time, and part of the first outlet port 112 is blocked by the valve core 120, which is in a partially closed state; the first communication port 113 is aligned with the part of the valve core 120 without openings, so that the first communication port 113 is completely blocked by the valve core 120, which is in a completely closed state, i.e. cannot be communicated with the installation cavity mentioned above.

[0075] In an optional embodiment, as shown in FIG. 5 and FIG. 6, the opening direction of the first liquid inlet 111, the opening direction of the first liquid outlet 112, the opening direction of the first communication port 113, and the opening direction of the second communication port 114 are all radial directions of a target circle, which is a circle where the rotation path of the valve core 120 is located. In this way, through the above structural arrangement, when the driving module drives the valve core 120 to rotate along the circumferential direction of the target circle, it can be well ensured that the first liquid inlet 111, the first communication port 113, and the second communication port 114 are all located in the opening direction of the second liquid inlet 121 on the valve core 120, and the first liquid outlet 112 is located in the opening direction of the second liquid outlet 122 on the valve core 120, thereby enabling the electric ball valve 100 in this example to be well switched between the above first state, second state, and third state.

[0076] It can be understood that the rotation path of the valve core 120 in this example can be any point on the valve core 120 that travels along the travel route when the valve core 120 rotates. Since the valve core 120 only rotates a small angle (generally less than 90 degrees) regardless of whether it rotates clockwise or counterclockwise, it does not rotate 360 degrees, so the above travel route is generally only a small arc of the target circle.

[0077] In an optional embodiment, as shown in FIG. 2 and FIG. 3, the valve body 110 can be specifically provided with a second communication pipe joint 118, and the second communication port 114 is arranged in the second communication pipe joint 118. In this way, through the structural arrangement of the second communication pipe joint 118, the installation and connection between the valve body 110 and the second communication pipe become more convenient and firm, and the communication between the second communication pipe and the first liquid outlet 112 is quickly realized.

[0078] In one embodiment, as shown in FIG. 6, the disclosure embodiment also provides a pressure differential type fertilization system 1, which can specifically include a liquid inlet pipe 200, a liquid outlet pipe 300, a first fertilizer storage container 400, and the electric ball valve 100 in the above embodiment. The liquid inlet pipe 200 is in communication with the first liquid inlet 111. The liquid outlet pipe 300 is in communication with the first liquid outlet 112 and is mainly used to output the liquid required for irrigation or fertilization. The first fertilizer storage container 400 is provided with a third liquid inlet (not shown) and a first fertilizer outlet (not shown). The third liquid inlet is in communication with the first communication port 113, and the first fertilizer outlet is in communication with the first liquid outlet 112 or the liquid outlet pipe 300.

[0079] It can be understood that the electric ball valve 100 of the present embodiment is the electric ball valve 100 of the above-mentioned application embodiment, and has the same structural features and functions, which will not be described here. The liquid inlet pipeline 200 of the present embodiment is mainly used for connecting a liquid supply pump at one end away from the first liquid inlet 111 to access the liquid required for irrigation or dissolving the fertilizer in the fertilizer storage container. The liquid outlet pipeline 300 of the present embodiment is mainly used for connecting an irrigation system or other irrigation device for irrigation or pressure difference type fertilization at one end away from the first liquid outlet 112 to flow the liquid required for irrigation or fertilization output by the liquid outlet pipeline 300 into the irrigation pipe network through these irrigation devices and delivered to the crop root system. The communication between the third liquid inlet and the first communication port 113 is mainly achieved by a pipeline or a pipeline, including but not limited to the first communication pipeline mentioned above. Similarly, the communication between the first fertilizer outlet and the first liquid outlet 112 or the communication between the first fertilizer outlet and the liquid outlet pipeline 300 is also mainly achieved by a pipeline or a pipeline, including but not limited to the first fertilizer pipeline 500 mentioned below.

[0080] In addition, the first fertilizer storage container 400 mentioned in the present embodiment is mainly a tank structure, or other container structure that can store fertilizer. The third liquid inlet is generally arranged adjacent to the bottom of the first fertilizer storage container 400, and the first fertilizer outlet is generally arranged adjacent to the top of the first fertilizer storage container 400, so that the liquid entering through the third liquid inlet can fully dissolve the fertilizer in the first fertilizer storage container 400 to obtain a fertilizer solution, and then output to the liquid outlet pipeline 300 through the first fertilizer outlet.

[0081] In this way, the differential pressure type fertilization system 1 provided by the embodiment of the present disclosure can be used to control the rotation of the valve core 120 of the electric ball valve 100, so that the electric ball valve 100 is in the first state, at this time, since the second liquid inlet 121 is connected to the first liquid inlet 111, the second liquid outlet 122 is connected to the first liquid outlet 112, and the first communication port 113 is completely closed, the liquid inlet pipeline 200 and the liquid outlet pipeline 300 are connected through the electric ball valve 100, the liquid (which can be water in particular) in the liquid inlet pipeline 200 flows into the liquid outlet pipeline 300 through the electric ball valve 100, and then is delivered to the irrigation system through the liquid outlet pipeline 300, so as to complete the corresponding irrigation control. The rotation of the valve core 120 of the electric ball valve 100 can also be controlled, so that the electric ball valve 100 is in the second state, at this time, the second liquid inlet 121 is connected to the first liquid inlet 111 and the first communication port 113 at the same time, the second liquid outlet 122 is connected to the first liquid outlet 112, and the first liquid outlet 112 is partially closed, so that the liquid pressure at the liquid outlet of the electric ball valve 100 is lower than the liquid pressure at the liquid inlet, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipeline 200 flows to the first fertilizer storage container 400 through the first communication port 113, after the fertilizer in the dissolving container is dissolved to obtain a fertilizer solution, the fertilizer solution reflows into the liquid outlet pipeline 300, so as to be delivered to the irrigation system through the liquid outlet pipeline 300, so as to complete the corresponding differential pressure fertilization control. It can be seen that the differential pressure type fertilization system 1 of the embodiment of the present disclosure can realize the irrigation and differential pressure fertilization control of the differential pressure type fertilization system 1 at the same time through only one electric ball valve 100, so as to greatly reduce the related operation steps and bring great convenience to the relevant operating personnel. The manual operation steps of the operating personnel in the irrigation and fertilization process are reduced, the time and labor cost are saved, and the overall operating efficiency is improved.

[0082] In an optional embodiment, as shown in FIG. 6, the differential pressure type fertilization system 1 further comprises a third communication port (not shown), which is used to communicate with the first fertilizer outlet, and is arranged on the side of the first liquid outlet 112 or the wall of the liquid outlet pipeline 300. In this way, the third communication port can be used to make the first fertilizer outlet more quickly communicate with the first liquid outlet 112 or the liquid outlet pipeline 300, that is, the fertilizer container output by the first fertilizer outlet can more easily enter the liquid outlet pipeline 300 through the third communication port, or indirectly enter the liquid outlet pipeline 300 through the first liquid outlet 112, or directly enter the liquid outlet pipeline 300.

[0083] It can be understood that the third communication port mentioned in the present example is arranged on the side of the first liquid outlet 112, which means that the third communication port is arranged on the valve body 110 and is always in communication with the first liquid outlet 112 without being affected by the rotation of the valve core 120. Specifically, when the first liquid outlet 112 is arranged on the liquid outlet pipe joint 116, the third communication port is arranged on the peripheral wall of the liquid outlet pipe joint 116, so that it is always in communication with the first liquid outlet 112 without being affected by the rotation of the valve core 120. In the present example, the third communication port is arranged on the wall of the liquid outlet pipe 300, which means that the third communication port is arranged on the wall of the end of the liquid outlet pipe 300 that is in communication with the first liquid outlet 112, so that the fertilizer solution delivered by the first fertilizer container can directly enter the liquid outlet pipe 300 through the third communication port.

[0084] In an optional embodiment, as shown in FIG. 6, the differential pressure type fertilizer application system 1 further comprises a first fertilizer outlet pipe 500 with a first stop valve, and the first fertilizer outlet is in communication with the third communication port through the first fertilizer outlet pipe 500. In this way, by arranging the first stop valve and the first fertilizer outlet pipe 500, the fertilizer solution delivered by the first fertilizer container through the first fertilizer outlet can be quickly delivered to the third communication port through the first fertilizer outlet pipe 500, while preventing the liquid in the liquid outlet pipe 300 from flowing back to the first fertilizer container 400 during the process of adding fertilizer to the first fertilizer container 400.

[0085] In an optional embodiment, as shown in FIG. 6, the differential pressure type fertilizer application system 1 further comprises a second fertilizer container 600, which can be provided with a fourth liquid inlet (not shown) and a second fertilizer outlet (not shown). The fourth liquid inlet is in communication with the second communication port 114, and the second fertilizer outlet is in communication with the first liquid outlet 112 or the liquid outlet pipe 300. In this way, by arranging the above structure, the differential pressure type fertilizer application system 1 can be connected to two fertilizer containers at the same time to automatically control the application of fertilizer by connecting to two fertilizer containers at the same time. It can ensure that the differential pressure type fertilizer application system 1 has enough fertilizer, thereby greatly reducing the number of times of adding and delivering fertilizer by the relevant operating personnel, further bringing great convenience to the relevant operating personnel, reducing unnecessary repetitive labor of the operating personnel, and reducing the labor burden of agricultural production.

[0086] It can be understood that the fourth liquid inlet mentioned in the present example is mainly communicated with the second communication port 114 through a pipeline or a pipe, including but not limited to the second communication pipe mentioned above. Similarly, the second fertilizer outlet mentioned above is mainly communicated with the first liquid outlet 112 or the liquid outlet pipe 300 through a pipeline or a pipe, including but not limited to the second fertilizer pipeline mentioned below. In addition, the second fertilizer storage container 600 mentioned in the present example is also mainly a tank structure or other container structure that can store fertilizer. The fourth liquid inlet is generally arranged adjacent to the bottom of the second fertilizer storage container 600, and the second fertilizer outlet is generally arranged adjacent to the top of the second fertilizer storage container 600, so that the liquid entering through the fourth liquid inlet can fully dissolve the fertilizer in the second fertilizer storage container 600 to obtain a fertilizer solution, and then output the fertilizer solution to the liquid outlet pipe 300 through the second fertilizer outlet.

[0087] In an optional embodiment, as shown in FIG. 6, the differential pressure type fertilizer application system 1 further comprises a fourth communication port (not shown) for communicating with the second fertilizer outlet, which is arranged on the side of the first liquid outlet 112 or the wall of the liquid outlet pipe 300. In this way, the second fertilizer outlet can be more quickly communicated with the first liquid outlet 112 or the liquid outlet pipe 300 through the arrangement of the fourth communication port, that is, the fertilizer container output by the second fertilizer outlet can be better introduced into the liquid outlet pipe 300 through the fourth communication port, or indirectly through the first liquid outlet 112, or directly into the liquid outlet pipe 300.

[0088] It can be understood that the fourth communication port mentioned in the present example is arranged on the side of the first liquid outlet 112, which means that the fourth communication port is arranged on the valve body 110 and always maintains communication with the first liquid outlet 112 without being affected by the rotation of the valve core 120. Specifically, when the first liquid outlet 112 is arranged on the liquid outlet pipe joint 116, the fourth communication port is arranged on the side wall of the liquid outlet pipe joint 116 to always maintain communication with the first liquid outlet 112 without being affected by the rotation of the valve core 120. The fourth communication port mentioned in the present example is arranged on the wall of the liquid outlet pipe 300, which means that the fourth communication port is arranged on the wall of the end of the liquid outlet pipe 300 communicated with the first liquid outlet 112, so that the fertilizer solution conveyed by the first fertilizer storage container can directly enter the liquid outlet pipe 300 through the fourth communication port.

[0089] In an optional embodiment, as shown in FIG. 6, the pressure-differential type fertilization system 1 further comprises a second fertilization outlet pipeline 700 with a second stop valve, and the second fertilization outlet is communicated with the fourth communication port through the second fertilization outlet pipeline 700. In this way, by the arrangement of the second stop valve and the second fertilization outlet pipeline 700, the fertilizer solution discharged from the second fertilizer storage container 600 through the second fertilization outlet can be quickly delivered to the fourth communication port through the second fertilization outlet pipeline 700, while preventing the liquid in the liquid outlet pipeline 300 from flowing back to the second fertilizer storage container 600 during the process of adding fertilizer to the second fertilizer storage container 600.

[0090] The above description is only preferred embodiments of the present disclosure, and does not limit the patent scope of the present disclosure. Any equivalent structural transformation made by using the content of the present disclosure specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present disclosure. Industrial applicability

[0091] The electric ball valve for fertilization of the present disclosure can simultaneously realize the irrigation and pressure-differential fertilization control of the pressure-differential type fertilization system, greatly reducing the related operation steps, integrating the irrigation and fertilization operation requirements by a set of system, greatly reducing the construction cost and labor operation burden of agricultural production, and having unique technical advantages in reducing fertilizer waste, improving fertilizer utilization rate and reducing environmental impact.

Claims

1. An electrically powered ball valve for use in fertilization, characterized in that, The valve body (110), the valve core (120) and the drive module are included, wherein, The valve body (110) is provided with a first liquid inlet (111), a first liquid outlet (112) and a first communication port (113), and the first communication port (113) is arranged adjacent to the first liquid inlet (111); The valve core (120) is built-in in the valve body (110), and the valve core (120) is provided with a second liquid inlet (121) and a second liquid outlet (122), and the second liquid outlet (122) is communicated with the second liquid inlet (121) in the interior of the valve core (120); The drive module is in driving connection with the valve core (120) to drive the valve core (120) to rotate, so that the electric ball valve can be switched between the first state and the second state; When the electric ball valve is in the first state, the second liquid inlet (121) is communicated with the first liquid inlet (111), the second liquid outlet (122) is communicated with the first liquid outlet (112), and the first communication port (113) is completely closed; when the electric ball valve is in the second state, the second liquid inlet (121) is communicated with the first liquid inlet (111) and the first communication port (113) at the same time, the second liquid outlet (122) is communicated with the first liquid outlet (112), and the first liquid outlet (112) is partially closed.

2. The motorized ball valve of claim 1, wherein, The opening direction of the first liquid inlet (111), the opening direction of the first liquid outlet (112) and the opening direction of the first communication port (113) are all one of the radial directions of a target circle, and the target circle is a circle where the rotation path of the valve core (120) is located.

3. The motorized ball valve of claim 2, wherein, The first liquid inlet (111) and the first liquid outlet (112) are arranged in opposite radial directions of the target circle, and the interior of the valve core (120) is provided with a liquid passage (123) extending in the radial direction of the target circle, and the second liquid outlet (122) is communicated with the second liquid inlet (121) in the interior of the valve core (120) through the liquid passage (123).

4. Motorized ball valve according to any of claims 1-3, characterized in that The valve body (110) is provided with a liquid inlet pipe joint (115), and the first liquid inlet (111) is arranged in the liquid inlet pipe joint (115); and / or, The valve body (110) is provided with a liquid outlet pipe joint (116), and the first liquid outlet (112) is arranged in the liquid outlet pipe joint (116); and / or, The valve body (110) is provided with a first communication pipe joint (117), and the first communication port (113) is arranged in the first communication pipe joint (117).

5. Motorized ball valve according to any of claims 1-4, characterized in that The second liquid inlet (121) is larger than the second liquid outlet (122).

6. Motorized ball valve according to any of claims 1-5, characterized in that The control box (130) is connected with the valve body (110), the drive module is arranged on the control box (130), the valve core (120) comprises a first connecting piece (124), the drive module comprises a second connecting piece, the first connecting piece (124) and the second connecting piece are connected, and the drive module drives the second connecting piece to rotate, so that the valve core (120) is driven to rotate relative to the valve body (110).

7. An electrically powered ball valve for use in fertilization, characterized in that The valve body (110), the valve core (120) and the drive module are included, The valve body (110) is provided with a first liquid inlet (111), a first liquid outlet (112), a first communication port (113) and a second communication port (114), the first communication port (113) and the second communication port (114) are located on both sides of the first liquid inlet (111) respectively, and are arranged adjacent to the first liquid inlet (111); The valve core (120) is arranged in the valve body (110), the valve core (120) is provided with a second liquid inlet (121) and a second liquid outlet (122), the second liquid outlet (122) is in communication with the second liquid inlet (121) in the interior of the valve core (120); The drive module is in transmission connection with the valve core (120) to drive the valve core (120) to rotate, so that the electric ball valve can be switched between the first state, the second state and the third state; When the electric ball valve is in the first state, the second liquid inlet (121) is in communication with the first liquid inlet (111), the second liquid outlet (122) is in communication with the first liquid outlet (112), and the first communication port (113) and the second communication port (114) are all closed; when the electric ball valve is in the second state, the second liquid inlet (121) is in communication with the first liquid inlet (111) and the first communication port (113) at the same time, the second liquid outlet (122) is in communication with the first liquid outlet (112), the second communication port (114) is all closed, and the first liquid outlet (112) is partially closed; when the electric ball valve is in the third state, the second liquid inlet (121) is in communication with the first liquid inlet (111) and the second communication port (114) at the same time, the second liquid outlet (122) is in communication with the first liquid outlet (112), the first communication port (113) is all closed, and the first liquid outlet (112) is partially closed.

8. The motorized ball valve of claim 7, wherein, The opening direction of the first liquid inlet (111), the opening direction of the first liquid outlet (112), the opening direction of the first communication port (113) and the opening direction of the second communication port (114) are all one of the radial directions of a target circle, and the target circle is a circle where the rotation path of the valve core (120) is located.

9. The motorized ball valve of claim 8, wherein, The first liquid inlet (111) and the first liquid outlet (112) are arranged in diametrically opposite positions of the target circle, and the valve core (120) is internally provided with a liquid passage (123) extending in the radial direction of the target circle, and the second liquid outlet (122) is in communication with the second liquid inlet (121) through the liquid passage (123) in the interior of the valve core (120).

10. Motorized ball valve according to any of claims 7-9, characterized in that The valve body (110) is provided with a liquid inlet pipe joint (115), and the first liquid inlet (111) is arranged in the liquid inlet pipe joint (115); and / or, The valve body (110) is provided with a liquid outlet pipe joint (116), and the first liquid outlet (112) is arranged in the liquid outlet pipe joint (116); and / or, The valve body (110) is provided with a first communication pipe joint (117), and the first communication port (113) is arranged in the first communication pipe joint (117); and / or, The valve body (110) is provided with a second communication pipe joint (118), and the second communication port (114) is arranged in the second communication pipe joint (118).

11. Motorized ball valve according to any of claims 7-9, characterized in that The second liquid inlet (121) is larger than the second liquid outlet (122).

12. The motorized ball valve according to any of claims 7-9, wherein, Further comprising a control box (130) connected with the valve body (110), and the driving module is arranged on the control box (130), the valve core (120) comprises a first connecting piece (124), the driving module comprises a second connecting piece, the first connecting piece (124) and the second connecting piece are connected, and the driving module drives the second connecting piece to rotate, so as to drive the valve core (120) to rotate relative to the valve body (110).

13. A differential pressure fertilizer application system characterized by, The application further provides a liquid supply device comprising a liquid inlet pipeline (200), a liquid outlet pipeline (300), a first fertilizer storage container (400), and the electric ball valve according to any one of claims 1-6, wherein, The liquid inlet pipeline (200) is in communication with the first liquid inlet (111); The liquid outlet pipeline (300) is in communication with the first liquid outlet (112) and is used for outputting liquid required for irrigation or fertilization; The first fertilizer storage container (400) is provided with a third liquid inlet and a first fertilizer outlet, the third liquid inlet is in communication with the first communication port (113), and the first fertilizer outlet is in communication with the first liquid outlet (112) or the liquid outlet pipeline (300).

14. The differential pressure fertilizer application system of claim 13, wherein, Further comprising a third communication port used for communication with the first fertilizer outlet, and the third communication port is arranged on the periphery of the first liquid outlet (112) or the pipe wall of the liquid outlet pipeline (300).

15. The differential pressure fertilizer application system of claim 14, wherein, Further comprising a first fertilizer outlet pipeline (500) provided with a first stop valve, and the first fertilizer outlet and the third communication port are in communication through the first fertilizer outlet pipeline (500).

16. A differential pressure fertilization system characterized by, The application further provides a liquid supply device comprising a liquid inlet pipeline (200), a liquid outlet pipeline (300), a first fertilizer storage container (400), a second fertilizer storage container (600), and the electric ball valve according to any one of claims 7-12, wherein, The liquid inlet pipeline (200) is in communication with the first liquid inlet (111); The liquid outlet pipeline (300) is communicated with the first liquid outlet (112) and is used for outputting liquid required for irrigation or fertilization; The first fertilizer storage container (400) is provided with a third liquid inlet and a first fertilizer outlet, the third liquid inlet is communicated with the first communication port (113), and the first fertilizer outlet is communicated with the first liquid outlet (112) or the liquid outlet pipeline (300); The second fertilizer storage container (600) is provided with a fourth liquid inlet and a second fertilizer outlet, the fourth liquid inlet is communicated with the second communication port (114), and the second fertilizer outlet is communicated with the first liquid outlet (112) or the liquid outlet pipeline (300).

17. The differential pressure fertilizer application system of claim 16, wherein, A third communication port is further included, the third communication port is used for being communicated with the first fertilizer outlet, and the third communication port is arranged on the periphery of the first liquid outlet (112) or the pipe wall of the liquid outlet pipeline (300).

18. The differential pressure fertilizer application system of claim 17, wherein, A first fertilizer outlet pipeline (500) with a first stop valve is further included, and the first fertilizer outlet and the third communication port are communicated through the first fertilizer outlet pipeline (500).

19. The differential pressure fertilizer application system of claim 16, wherein, A fourth communication port is further included, the fourth communication port is used for being communicated with the second fertilizer outlet, and the fourth communication port is arranged on the periphery of the first liquid outlet (112) or the pipe wall of the liquid outlet pipeline (300).

20. The differential pressure fertilizer application system of claim 19, wherein, A second fertilizer outlet pipeline (700) with a second stop valve is further included, and the second fertilizer outlet and the fourth communication port are communicated through the second fertilizer outlet pipeline (700).

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