Electric ball valve for fertilization and differential pressure type fertilization system

Abstract

The utility model discloses an electric ball valve for fertilization and a differential pressure type fertilization system, and the electric ball valve comprises a valve body which is provided with a first liquid inlet, a first liquid outlet and a first communication port; the valve element is arranged in the valve body, the valve element is provided with a second liquid inlet and a second liquid outlet, and the second liquid outlet is communicated with the second liquid inlet in the valve element; the driving module is in transmission connection with the valve element to drive the valve element to rotate, so that the electric ball valve can be switched between a first state and a second state; when the electric ball valve is in a 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 ports are all closed; and when the electric ball valve is in a 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, and the first liquid outlet is partially closed. According to the technical scheme, control over irrigation and differential pressure fertilization of the differential pressure type fertilization system can be achieved only through one electric ball valve.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural devices, and in particular to an electric ball valve for fertilization and a pressure differential fertilization system. Background Art

[0002] Integrated water and fertilizer technology, also known as water-saving fertigation, is a modern, advanced agricultural technique that combines drip irrigation with fertilization. This technology primarily utilizes drip irrigation systems, using the water in these systems as a carrier to simultaneously fertilize and irrigate, achieving integrated water and fertilizer utilization and management. This ensures that water and fertilizer are optimally combined in the soil for crop absorption and utilization.

[0003] Water-saving irrigation and fertilization technology is mainly achieved through a water-saving irrigation and fertilization system. In related technologies, a 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., wherein two thin tubes (bypass pipes) of the fertilizer tank are connected to the main pipeline. The fertilizer pipe fertilizes by pressure difference. Therefore, in addition to setting a pressure regulating valve on the main pipeline, it is also necessary to set a regulating valve (ball valve or gate valve) at the connection node between the two thin tubes or on the two thin tubes to generate a smaller pressure difference, so that part of the water flow of the main pipeline flows into the fertilizer tank. After the fertilizer in the tank is dissolved to obtain a fertilizer solution, the fertilizer solution re-enters the main pipeline through another thin tube to achieve pressure differential fertilization operation. However, in actual use, it is found that this pressure differential fertilization method requires the simultaneous control of multiple valves to achieve the control of irrigation and pressure differential fertilization. The operation steps are numerous and easy to cause many inconveniences to the relevant operators. Utility Model Content

[0004] The embodiments of the present application provide an electric ball valve and a pressure differential fertilization system for fertilization, which aims to improve the existing pressure differential fertilization method. It is necessary to simultaneously control the operation of multiple valves to achieve the control of irrigation and pressure differential fertilization. The operation steps are numerous and easily cause many inconveniences to the relevant operators. Technical problems.

[0005] To this end, an embodiment of the present application provides an electric ball valve for fertilization, comprising a valve body, a valve core, and a drive module, wherein:

[0006] The valve body is provided with a first liquid inlet, a first liquid outlet and a first connecting port, and the first connecting port is arranged adjacent to the first liquid inlet;

[0007] The valve core is built into 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 communicated with the second liquid inlet inside the valve core;

[0008] 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 switch between the first state and the second state;

[0009] Among them, when the electric ball valve is in the first state, the second liquid inlet is connected to the first liquid inlet, the second liquid outlet is connected to the first liquid outlet, and the first connecting port is completely closed; when the electric ball valve is in the second state, the second liquid inlet is connected to the first liquid inlet and the first connecting port at the same time, the second liquid outlet is connected to the first liquid outlet, and the first liquid outlet is partially closed.

[0010] Optionally, in some embodiments of the present application, 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 radial directions of a target circle, and the target circle is the circle where the rotation path of the valve core is located.

[0011] Optionally, in some embodiments of the present application, the first liquid inlet and the first liquid outlet are arranged opposite to each other in the radial direction of the target circle, a liquid channel extending radially along the target circle is provided inside the valve core, and the second liquid outlet is connected to the second liquid inlet through the liquid channel inside the valve core.

[0012] Optionally, in some embodiments of the present application, the valve body is provided with a liquid inlet pipe joint, and the first liquid inlet is provided at the liquid inlet pipe joint; and / or,

[0013] The valve body is provided with a liquid outlet pipe joint, and the first liquid outlet is provided at the liquid outlet pipe joint; and / or,

[0014] The valve body is provided with a first communicating pipe joint, and the first communicating port is provided at the first communicating pipe joint.

[0015] Optionally, in some embodiments of the present application, the second liquid inlet is larger than the second liquid outlet.

[0016] Optionally, in some embodiments of the present application, a control box is further included, which is connected to the valve body. The drive module is arranged on the control box. The valve core includes a first connecting member, and the drive module includes a second connecting member. The first connecting member and the second connecting member are connected. The drive module drives the second connecting member to rotate to drive the valve core to rotate relative to the valve body.

[0017] In addition, the embodiment of the present application also provides an electric ball valve for fertilization, including a valve body, a valve core and a drive module, wherein:

[0018] The valve body is provided with a first liquid inlet, a first liquid outlet, a first connecting port and a second connecting port, wherein the first connecting port and the second connecting port are respectively located on both sides of the first liquid inlet and are both arranged adjacent to the first liquid inlet;

[0019] The valve core is built into 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 communicated with the second liquid inlet inside the valve core;

[0020] 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 switch between the first state, the second state and the third state;

[0021] In which, when the electric ball valve is in the first state, the second liquid inlet is connected to the first liquid inlet, the second liquid outlet is connected to the first liquid outlet, and the first connecting port and the second connecting port are all closed; when the electric ball valve is in the second state, the second liquid inlet is connected to the first liquid inlet and the first connecting port at the same time, the second liquid outlet is connected to the first liquid outlet, the second connecting 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 connected to the first liquid inlet and the second connecting port at the same time, the second liquid outlet is connected to the first liquid outlet, the first connecting port is all closed, and the first liquid outlet is partially closed.

[0022] Optionally, in some embodiments of the present application, the opening direction of the first liquid inlet, the opening direction of the first liquid outlet, the opening direction of the first connecting port, and the opening direction of the second connecting port 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 is located.

[0023] Optionally, in some embodiments of the present application, the first liquid inlet and the first liquid outlet are arranged opposite to each other in the radial direction of the target circle, a liquid channel extending radially along the target circle is provided inside the valve core, and the second liquid outlet is connected to the second liquid inlet through the liquid channel inside the valve core.

[0024] Optionally, in some embodiments of the present application, the valve body is provided with a liquid inlet pipe joint, and the first liquid inlet is provided at the liquid inlet pipe joint; and / or,

[0025] The valve body is provided with a liquid outlet pipe joint, and the first liquid outlet is provided at the liquid outlet pipe joint; and / or,

[0026] The valve body is provided with a first connecting pipe joint, and the first connecting port is provided at the first connecting pipe joint; and / or,

[0027] The valve body is provided with a second communicating pipe joint, and the second communicating port is provided at the second communicating pipe joint.

[0028] Optionally, in some embodiments of the present application, the second liquid inlet is larger than the second liquid outlet.

[0029] Optionally, in some embodiments of the present application, a control box is further included, which is connected to the valve body. The drive module is arranged on the control box. The valve core includes a first connecting member, and the drive module includes a second connecting member. The first connecting member and the second connecting member are connected. The drive module drives the second connecting member to rotate to drive the valve core to rotate relative to the valve body.

[0030] In addition, the embodiment of the present application further provides a pressure differential fertilization system, comprising a liquid inlet pipe, a liquid outlet pipe, a first fertilizer storage container and the above-mentioned electric ball valve, wherein:

[0031] The liquid inlet pipe is connected to the first liquid inlet;

[0032] The liquid outlet pipe is connected to the first liquid outlet and is used to output the liquid required for irrigation or fertilization;

[0033] The first fertilizer storage container is provided with a third liquid inlet and a first fertilizer outlet. The third liquid inlet is communicated with the first connecting port, and the first fertilizer outlet is communicated with the first liquid outlet or the liquid outlet pipe.

[0034] Optionally, in some embodiments of the present application, a third communication port is further included, wherein the third communication port is used to communicate with the first fertilizer outlet, and the third communication port is provided on the peripheral side of the first liquid outlet, or on the pipe wall of the liquid outlet pipe.

[0035] Optionally, in some embodiments of the present application, a first fertilizer outlet pipeline with a first shut-off valve is further included, and the first fertilizer outlet port and the third communication port are connected through the first fertilizer outlet pipeline.

[0036] In addition, the embodiment of the present application also provides a pressure differential fertilization system, including a liquid inlet pipe, a liquid outlet pipe, a first fertilizer storage container, a second fertilizer storage container and the above-mentioned electric ball valve, wherein:

[0037] The liquid inlet pipe is connected to the first liquid inlet;

[0038] The liquid outlet pipe is connected to the first liquid outlet and is used to output the liquid required for irrigation or fertilization;

[0039] The first fertilizer storage container is provided with a third liquid inlet and a first fertilizer outlet, the third liquid inlet is connected to the first connecting port, and the first fertilizer outlet is connected to the first liquid outlet or the liquid outlet pipe;

[0040] The second fertilizer storage container is provided with a fourth liquid inlet and a second fertilizer outlet, the fourth liquid inlet is communicated with the second connecting port, and the second fertilizer outlet is communicated with the first liquid outlet or the liquid outlet pipe.

[0041] Optionally, in some embodiments of the present application, a third communication port is further included, wherein the third communication port is used to communicate with the first fertilizer outlet, and the third communication port is opened on the peripheral side of the first liquid outlet, or is opened on the wall of the liquid outlet pipe.

[0042] Optionally, in some embodiments of the present application, a first fertilizer outlet pipeline with a first shut-off valve is further included, and the first fertilizer outlet port and the third communication port are connected through the first fertilizer outlet pipeline.

[0043] Optionally, in some embodiments of the present application, a fourth communication port is further included, wherein the fourth communication port is used to communicate with the second fertilizer outlet, and the fourth communication port is opened on the peripheral side of the first liquid outlet, or is opened on the pipe wall of the liquid outlet pipe.

[0044] Optionally, in some embodiments of the present application, a second fertilizer outlet pipeline with a second shut-off valve is further included, and the second fertilizer outlet port and the fourth communication port are connected through the second fertilizer outlet pipeline.

[0045] The technical solution of this application provides an electric ball valve and a pressure-differential fertilization system for fertilization. The electric ball valve includes a valve body, a valve core, and a drive module. The valve body is provided with a first liquid inlet, a first liquid outlet, and a first connecting port, with the first connecting port being located adjacent to the first liquid inlet. The valve core is built into the valve body and provided with a second liquid inlet and a second liquid outlet. The second liquid outlet is connected to the second liquid inlet within the valve core. The drive module is in transmission connection with the valve core to drive the valve core to rotate, enabling the electric ball valve to switch between a first state and a second state. In this way, through the above-mentioned structural arrangement, when the electric ball valve is applied to a pressure differential fertilization system, it can be rotated by the valve core so that the electric ball valve is in the first state. At this time, since the second liquid inlet is connected to the first liquid inlet, the second liquid outlet is connected to the first liquid outlet, and the first connecting ports are all closed, the liquid inlet pipe and the liquid outlet pipe in the main pipe of the pressure differential fertilization system are connected through the electric ball valve, and the liquid in the liquid inlet pipe (specifically, water) all flows into the liquid outlet pipe through the electric ball valve, and is then transported to the drip irrigation system through the liquid outlet pipe to complete the corresponding irrigation control. The valve core can also be rotated to put the electric ball valve in the second state. At this time, the second liquid inlet is connected to the first liquid inlet and the first connecting port at the same time, and the second liquid outlet is connected to the first liquid outlet. The first liquid outlet is partially closed, so that the hydraulic pressure at the electric ball valve at the liquid outlet is lower than the hydraulic pressure at the liquid inlet, thereby forming a pressure differential, so that part of the liquid in the liquid inlet pipe flows to the fertilizer storage container through the first connecting port, dissolving the fertilizer in the container to obtain a fertilizer solution, and then the fertilizer solution flows back into the liquid outlet pipe of the main pipe to be transported to the drip irrigation system through the liquid outlet pipe to complete the corresponding pressure differential fertilization control. In this way, the present technical solution can achieve both irrigation and pressure differential fertilization control of the pressure differential fertilization system through only one electric ball valve, thereby greatly reducing the related operation steps and bringing great convenience to the relevant operators. It can be seen that the present technical solution can effectively improve the existing pressure differential fertilization method, which requires the simultaneous control of multiple valves to achieve irrigation and pressure differential fertilization control, has many operation steps, and easily causes many inconveniences to the relevant operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0047] Figure 1 A schematic diagram of the structure of the electric ball valve provided in an embodiment of the present application;

[0048] Figure 2 for Figure 1The schematic diagram of the partial structure of the electric ball valve shown;

[0049] Figure 3 for Figure 2 The schematic diagram of the split structure of the electric ball valve shown;

[0050] Figure 4 for Figure 2 The cross-sectional structural diagram of the electric ball valve shown is in the first state;

[0051] Figure 5 for Figure 2 The cross-sectional structural diagram of the electric ball valve shown is in the second state;

[0052] Figure 6 This is a schematic diagram of the structure of the pressure differential fertilization system provided in an embodiment of the present application.

[0053] Description of Figure Numbers:

[0054] 1. Pressure differential fertilization system; 100. Electric ball valve; 110. Valve body; 111. First liquid inlet; 112. First liquid outlet; 113. First connecting port; 114. Second connecting port; 115. Liquid inlet pipe joint; 116. Liquid outlet pipe joint; 117. First connecting pipe joint; 118. Second connecting pipe joint; 120. Valve core; 121. Second liquid inlet; 122. Second liquid outlet; 123. Liquid channel; 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.

[0055] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0057] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0058] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0059] In one embodiment, Figures 1 to 5 As shown, an embodiment of the present application provides an electric ball valve 100 for fertilization, which may specifically include a valve body 110, a valve core 120, and a drive module (not shown), wherein the valve body 110 is provided with a first liquid inlet 111, a first liquid outlet 112, and a first connecting port 113, and the first connecting port 113 is provided adjacent to the first liquid inlet 111. The valve core 120 is built into 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 connected to the second liquid inlet 121 inside 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 100 can switch between the first state and the second state. When the electric ball valve 100 is in the first state, 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 connecting port 113 is completely closed. When the electric ball valve 100 is in the second state, the second liquid inlet 121 is connected to both the first liquid inlet 111 and the first connecting port 113, the second liquid outlet 122 is connected to the first liquid outlet 112, and the first liquid outlet 112 is partially closed.

[0060] It is understood that the electric ball valve 100 of the embodiment of the present application can be specifically applied to the differential pressure fertilization system 1 to simultaneously realize the control of irrigation and differential pressure fertilization of the differential pressure fertilization system 1. To facilitate the installation and rotation of the valve core 120 in the valve body 110, the interior of the valve body 110 is generally hollow, so as to form an installation cavity therein for installing the valve core 120. At the same time, the inner side of the first liquid inlet 111, the inner side of the first liquid outlet 112, and the inner side of the first connecting port 113 mentioned above should generally be connected to the installation cavity. In order to ensure that the outer side of the first liquid inlet 111, the outer side of the first liquid outlet 112, and the outer side of the first connecting port 113 can better connect and connect with the corresponding pipeline or pipe, the shape of the first liquid inlet 111, the shape of the first liquid outlet 112, and the shape of the first connecting port 113 are generally roughly circular, or other shapes that can well realize the connection between the corresponding pipeline or pipe and the installation cavity, including but not limited to semicircular, elliptical, polygonal, etc. Since the second liquid inlet 121 needs to be connected to the first liquid inlet 111 or to the first liquid inlet 111 and the first connecting port 113 at the same time, and the second liquid outlet 122 needs to be connected to the first liquid outlet 112, the shape of the second liquid inlet 121 and the shape of the second liquid outlet 122 are generally roughly circular, or other shapes that can facilitate the corresponding connection between the two, including but not limited to semicircular, elliptical, polygonal, etc. The valve core 120 mentioned above is generally roughly spherical, or other rotatable shapes, including but not limited to hemispherical, cylindrical, polygonal cylinder, etc., and in order to facilitate the valve core 120 to have sufficient rotation space in the installation cavity, the shape of the main part of the installation cavity is generally compatible with the outer shape of the valve core 120, and the dimensions in all aspects are slightly larger than the valve core 120, to ensure that the valve core 120 can smoothly rotate accordingly in the installation cavity.

[0061] In addition, Figure 4 As shown, the above-mentioned electric ball valve 100 is in the first state, 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 connecting port 113 is completely closed. Generally speaking, in the first state, the second liquid inlet 121 is opposite to the first liquid inlet 111, so that the first liquid inlet 111 is fully opened and connected to the second liquid inlet 121; the second liquid outlet 122 is opposite to the first liquid outlet 112, so that the first liquid outlet 112 is fully opened and connected to the second liquid outlet 122; the first connecting port 113 is opposite to the unopened part of the valve core 120, so that the first connecting port 113 is completely blocked by the valve core 120 and is in a completely closed state, that is, it cannot be connected to the installation cavity mentioned above. Similarly, Figure 5As shown, as mentioned above, when the electric ball valve 100 is in the second state, the second liquid inlet 121 is connected to the first liquid inlet 111 and the first connecting port 113 at the same time, and the second liquid outlet 122 is connected to the first liquid outlet 112. The partial closure of the first liquid outlet 112 generally means that in the second state, a part of the second liquid inlet 121 is aligned with the first liquid inlet 111, and the other part is aligned with the first connecting port 113, so that the first liquid inlet 111 and the first connecting port 113 are both partially open and connected with the second liquid inlet 121 at the same time; a part of the second liquid outlet 122 is aligned with the first liquid outlet 112, so that while the first liquid outlet 112 is connected to the second liquid outlet 122, part of the first liquid outlet 112 is blocked by the valve core 120 and is in a partially closed state.

[0062] Thus, the electric ball valve 100 provided in the embodiment of the present application, through the above-mentioned structural setting, when the electric ball valve 100 is applied to the pressure differential fertilization system 1, it can rotate through the valve core 120 so that the electric ball valve 100 is in Figure 4 In the first state shown, 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 connecting port 113 is completely closed, the liquid inlet pipe 200 and the liquid outlet pipe 300 in the main pipeline of the pressure differential fertilization system 1 are connected through the electric ball valve 100. The liquid (specifically, water) in the liquid inlet pipe 200 flows into the liquid outlet pipe 300 through the electric ball valve 100, and is then transported to the drip irrigation system through the liquid outlet pipe 300 to complete the corresponding irrigation control. The valve core 120 can also be rotated to make the electric ball valve 100 in a state of Figure 5 In the second state shown, at this time, the second liquid inlet 121 is connected to the first liquid inlet 111 and the first connecting port 113 at the same time, and the second liquid outlet 122 is connected to the first liquid outlet 112. The first liquid outlet 112 is partially closed, so that the hydraulic pressure at the outlet of the electric ball valve 100 is lower than the hydraulic pressure at the liquid inlet, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipe 200 flows to the fertilizer storage container through the first connecting port 113, dissolving the fertilizer in the container to obtain a fertilizer solution, and then the fertilizer solution flows back into the liquid outlet pipe 300 of the main pipe to be transported to the drip irrigation system through the liquid outlet pipe 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 application can simultaneously realize the irrigation and pressure differential fertilization control of the pressure differential fertilization system 1, thereby greatly reducing the relevant operating steps and bringing great convenience to the relevant operators.

[0063] In some examples, such as Figure 4 and Figure 5As shown, 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 radial directions of the target circle, and the target circle is the circle on which the rotation path of the valve core 120 lies. In this way, through the above-mentioned 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 movable so that the opening direction of the second liquid inlet 121 on the valve core 120 is upward, and the first liquid outlet 112 is movable so that the opening direction of the second liquid outlet 122 on the valve core 120 is upward, thereby enabling the electric ball valve 100 in this example to be well switched between the above-mentioned first state and the second state.

[0064] It can be understood that the rotation path of the valve core 120 in this example can specifically be the travel route traveled by any point on the valve core 120 when the valve core 120 rotates. Since the valve core 120 will only rotate a small angle (the angle will generally be less than 90 degrees) and will not rotate 360 degrees regardless of whether it rotates clockwise or counterclockwise, the above-mentioned travel route will generally only be a small arc on the target circle.

[0065] In some examples, such as Figure 4 and Figure 5 As shown, the first liquid inlet 111 and the first liquid outlet 112 are arranged opposite each other in the radial direction of the target circle, and a liquid channel 123 extending in the radial direction of the target circle is provided inside the valve core 120. The second liquid outlet 122 is connected to the second liquid inlet 121 through the liquid channel 123 inside the valve core 120. In this way, through the above-mentioned structural arrangement, 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 channel 123 can all be kept consistent, so that the liquid can better pass through the first liquid inlet 111, the second liquid inlet 121, the liquid channel 123, the second liquid outlet 122, and the first liquid outlet 112 in a straight manner, thereby ensuring the irrigation control effect of the electric ball valve 100 in the first state.

[0066] In some examples, such as Figures 1 to 3 As shown, the valve body 110 can be specifically provided with a liquid inlet pipe joint 115, and the first liquid inlet port 111 is provided at the liquid inlet pipe joint 115. In this way, the structural setting of the liquid inlet pipe joint 115 can make the installation connection between the valve body 110 and the liquid inlet pipe 200 more convenient and firm, and quickly realize the communication between the liquid inlet pipe 200 and the first liquid inlet port 111.

[0067] In some examples, such as Figures 1 to 3As shown, the valve body 110 can be specifically provided with a liquid outlet pipe joint 116, and the first liquid outlet 112 is provided at the liquid outlet pipe joint 116. In this way, the structural setting of the liquid outlet pipe joint 116 can make the installation connection between the valve body 110 and the liquid outlet pipe 300 more convenient and firm, and quickly realize the communication between the liquid outlet pipe 300 and the first liquid outlet 112.

[0068] In some examples, such as Figures 1 to 3 As shown, the valve body 110 can be specifically provided with a first connecting pipe joint 117, and the first connecting port 113 is provided at the first connecting pipe joint 117. In this way, the structural setting of the first connecting pipe joint 117 can make the installation connection between the valve body 110 and the first connecting pipe more convenient and firm, and quickly realize the communication between the first connecting pipe and the first liquid outlet 112.

[0069] In some examples, such as Figure 4 and Figure 5 As shown, the second liquid inlet 121 is larger than the second liquid outlet 122. Thus, through the above structural arrangement, when the electric ball valve 100 is in the second state, the second liquid inlet 121 can be better connected to the first liquid inlet 111 and the first communication port 113 at the same time.

[0070] In some examples, such as Figures 1 to 3 As shown, the electric ball valve 100 further includes a control box 130, which is connected to the valve body 110. A drive module is disposed on the control box 130. The valve core 120 includes a first connecting member 124, and the drive module includes a second connecting member. The first connecting member 124 is connected to the second connecting member. The drive module drives the second connecting member to rotate, thereby driving the valve core 120 to rotate relative to the valve body 110. In this way, through the above-mentioned structural arrangement, the control box 130 can drive the valve core 120 to rotate relative to the valve body 110 through the drive module according to actual control needs, thereby realizing the switching of the electric ball valve 100 between the first state and the second state.

[0071] It can be understood that the driving module in this example can be specifically a motor power module. At this time, the first connecting member 124 can be specifically a transmission rod, and the second connecting member can be specifically a motor shaft. The two can be coaxially connected through a structure such as a coupling, so that when the motor power module drives the motor shaft to rotate, it synchronously drives the transmission rod to rotate, and then drives the valve core 120 to rotate relative to the valve body 110 through the transmission rod.

[0072] In some examples, such as Figures 1 to 5As shown, the valve body 110 of the electric ball valve 100 is also provided with a second connecting port 114. In this case, the first connecting port 113 and the second connecting port 114 are respectively located on both sides of the first liquid inlet 111 and are both arranged adjacent to the first liquid inlet 111. The drive module drives the valve core 120 to rotate. In addition to enabling the electric ball valve 100 to switch between the first state and the second state, it can also switch the electric ball valve 100 to the third state, or switch the electric ball valve 100 from the third state back to the first state or the second state. Specifically, when the electric ball valve 100 is in the first state, 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 connecting port 113 and the second connecting port 114 are both closed. When the electric ball valve 100 is in the second state, the second liquid inlet 121 is connected to the first liquid inlet 111 and the first connecting port 113, the second liquid outlet 122 is connected to the first liquid outlet 112, the second connecting port 114 is completely closed, and the first liquid outlet 112 is partially closed. When the electric ball valve 100 is in the third state, the second liquid inlet 121 is connected to the first liquid inlet 111 and the second connecting port 114, the second liquid outlet 122 is connected to the first liquid outlet 112, the first connecting port 113 is completely closed, and the first liquid outlet 112 is partially closed. In this way, when the electric ball valve 100 is applied to the pressure differential fertilization system 1, the valve core 120 can be rotated through the added second connecting port 114, so that the electric ball valve 100 is in the third state. At this time, the second liquid inlet 121 is connected to the first liquid inlet 111 and the second connecting port 114 at the same time, the second liquid outlet 122 is connected to the first liquid outlet 112, the first connecting port 113 is completely closed, and the first liquid outlet 112 is partially closed, so that the hydraulic pressure at the liquid outlet of the electric ball valve 100 is lower than the hydraulic pressure at the liquid inlet, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipe 200 flows to another fertilizer storage container through the second connecting port 114, dissolves the fertilizer in the container to obtain a fertilizer solution, and then the fertilizer solution flows back into the liquid outlet pipe 300 of the main pipe, so as to be transported to the irrigation system through the liquid outlet pipe 300, thereby completing the corresponding pressure differential fertilization control.

[0073] It can be understood that, the example mentioned that when the electric ball valve 100 is in the first state, 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 connecting port 113 and the second connecting port 114 are all closed generally refers to that, in the first state, the second liquid inlet 121 is opposite to the first liquid inlet 111, so that the first liquid inlet 111 is fully opened and connected with the second liquid inlet 121; the second liquid outlet 122 is opposite to the first liquid outlet 112, so that the first liquid outlet 112 is fully opened and connected with the second liquid outlet 122; the first connecting port 113 and the second connecting port 114 are both opposite to the part of the valve core 120 that has no opening, so that the first connecting port 113 and the second connecting port 114 are completely blocked by the valve core 120 and are in a completely closed state, that is, they cannot be connected to the installation cavity mentioned above. Similarly, in this example, when the electric ball valve 100 is in the second state, the second liquid inlet 121 is connected to the first liquid inlet 111 and the first connecting port 113 at the same time, the second liquid outlet 122 is connected to the first liquid outlet 112, and the second connecting port 114 is completely closed. The partial closure of the first liquid outlet 112 generally means that in the second state, a part of the second liquid inlet 121 is aligned with the first liquid inlet 111, and the other part is aligned with the first connecting port 113, so that the first liquid inlet 111 and the first connecting port 113 are connected. 13 are partially opened and connected with the second liquid inlet 121 at the same time; a part of the second liquid outlet 122 is aligned with the first liquid outlet 112, so that the first liquid outlet 112 is connected with the second liquid outlet 122, while a part of the first liquid outlet 112 is blocked by the valve core 120, showing a partially closed state; the second connecting port 114 is opposite to the part of the valve core 120 that has no opening, so that the second connecting port 114 is completely blocked by the valve core 120, showing a fully closed state, that is, it cannot be connected with the installation cavity mentioned above. Similarly, in this example, when the electric ball valve 100 is in the third state, the second liquid inlet 121 is connected to the first liquid inlet 111 and the second connecting port 114 at the same time, the second liquid outlet 122 is connected to the first liquid outlet 112, and the first connecting port 113 is completely closed. The partial closure of the first liquid outlet 112 generally means that in the third state, a part of the second liquid inlet 121 is aligned with the first liquid inlet 111, and the other part is aligned with the second connecting port 114, so that the first liquid inlet 111 and the second connecting port 114 are connected. 14 are partially opened and at the same time communicated with the second liquid inlet 121; a part of the second liquid outlet 122 is aligned with the first liquid outlet 112, so that while the first liquid outlet 112 is communicated with the second liquid outlet 122, a part of the first liquid outlet 112 is blocked by the valve core 120, and is in a partially closed state; the first connecting port 113 is directly opposite to the unopened part of the valve core 120, so that the first connecting port 113 is completely blocked by the valve core 120, and is in a fully closed state, that is, it cannot be communicated with the installation cavity mentioned above.

[0074] In some examples, such as Figure 5 and Figure 6 As shown, the opening direction of the first liquid inlet 111, the opening direction of the first liquid outlet 112, the opening direction of the first connecting port 113, and the opening direction of the second connecting port 114 are all radial directions of the target circle, and the target circle is the circle where the rotation path of the valve core 120 lies. In this way, through the above-mentioned 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 connecting port 113, and the second connecting port 114 are all moved to the direction of the opening of the second liquid inlet 121 on the valve core 120 upward, and the first liquid outlet 112 is moved to the direction of the opening of the second liquid outlet 122 on the valve core 120 upward, thereby allowing the electric ball valve 100 in this example to switch well between the above-mentioned first state, second state, and third state.

[0075] It can be understood that the rotation path of the valve core 120 in this example can specifically be the travel route traveled by any point on the valve core 120 when the valve core 120 rotates. Since the valve core 120 will only rotate a small angle (the angle will generally be less than 90 degrees) and will not rotate 360 degrees regardless of whether it rotates clockwise or counterclockwise, the above-mentioned travel route will generally only be a small arc on the target circle.

[0076] In some examples, such as Figure 2 and Figure 3 As shown, the valve body 110 can be specifically provided with a second connecting pipe joint 118, and the second connecting port 114 is provided at the second connecting pipe joint 118. In this way, the structural setting of the second connecting pipe joint 118 can make the installation connection between the valve body 110 and the second connecting pipe more convenient and firm, and quickly realize the communication between the second connecting pipe and the first liquid outlet 112.

[0077] In one embodiment, Figure 6 As shown, the embodiment of the present application also provides a pressure differential fertilization system 1, which may 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, wherein the liquid inlet pipe 200 is connected to the first liquid inlet 111. The liquid outlet pipe 300 is connected to 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 connected to the first connecting port 113, and the first fertilizer outlet is connected to the first liquid outlet 112 or to the liquid outlet pipe 300.

[0078] It is understood that since the electric ball valve 100 of the embodiment of the present application is the electric ball valve 100 of the embodiment of the above application, it has the same structural features and functions, and will not be repeated here. The end of the liquid inlet pipe 200 of the embodiment of the present application away from the first liquid inlet 111 is mainly used to connect to the liquid supply pump to receive water or other liquids required for irrigation or dissolving the fertilizer in the fertilizer storage container. The end of the liquid outlet pipe 300 of the embodiment of the present application away from the first liquid outlet 112 is mainly used to connect to an irrigation system or other irrigation device used for irrigation or pressure differential fertilization, so that the liquid required for irrigation or fertilization output by the liquid outlet pipe 300 can flow into the irrigation network through these irrigation devices and be transported to the crop root system. The aforementioned third liquid inlet is connected to the first connecting port 113 mainly through a pipe or pipeline, including but not limited to the first connecting pipe mentioned above. Similarly, the aforementioned first fertilizer outlet is connected to the first liquid outlet 112 or to the liquid outlet pipe 300 mainly through a pipe or pipeline, including but not limited to the first fertilizer outlet pipe 500 mentioned below.

[0079] In addition, the first fertilizer storage container 400 mentioned in the embodiments of the present application is primarily a tank structure, or other container structure capable of storing fertilizer. The third liquid inlet is generally located near the bottom of the first fertilizer storage container 400, and the first fertilizer outlet is generally located near the top of the first fertilizer storage container 400. This ensures that the liquid entering through the third liquid inlet can fully dissolve the fertilizer in the first fertilizer storage container 400 to form a fertilizer solution, which is then discharged into the liquid outlet pipe 300 through the first fertilizer outlet.

[0080] In this way, the differential pressure fertilization system 1 provided in the embodiment of the present application, through the above-mentioned structural arrangement, can 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 connecting port 113 is completely closed, the liquid inlet pipe 200 and the liquid outlet pipe 300 are connected through the electric ball valve 100. The liquid (specifically, water) in the liquid inlet pipe 200 all flows into the liquid outlet pipe 300 through the electric ball valve 100, and is then transported to the irrigation system through the liquid outlet pipe 300 to complete the corresponding irrigation control. Alternatively, the valve core 120 of the electric ball valve 100 may be controlled to rotate 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 connecting port 113 at the same time, and the second liquid outlet 122 is connected to the first liquid outlet 112. The first liquid outlet 112 is partially closed, so that the hydraulic pressure at the outlet of the electric ball valve 100 is lower than the hydraulic pressure at the inlet, thereby forming a pressure difference, so that part of the liquid in the liquid inlet pipe 200 flows through the first connecting port 113 to the first fertilizer storage container 400, dissolving the fertilizer in the container to obtain a fertilizer solution, and then the fertilizer solution flows back into the liquid outlet pipe 300 to be transported to the irrigation system through the liquid outlet pipe 300, thereby completing the corresponding pressure differential fertilization control. It can be seen that the pressure differential fertilization system 1 of the embodiment of the present application can simultaneously realize the irrigation and pressure differential fertilization control of the pressure differential fertilization system 1 by only using one electric ball valve 100, thereby greatly reducing the relevant operation steps and bringing great convenience to the relevant operators.

[0081] In some examples, such as Figure 6 As shown, the differential pressure fertilization system 1 further includes a third communication port (not shown) for communicating with the first fertilizer outlet. The third communication port is disposed around the first liquid outlet 112 or on the wall of the liquid outlet pipe 300. Thus, the third communication port allows the first fertilizer outlet to more quickly communicate with the first liquid outlet 112 or the liquid outlet pipe 300. This allows the fertilizer container output from the first fertilizer outlet to more easily enter the liquid outlet pipe 300 through the third communication port, indirectly through the first liquid outlet 112, or directly.

[0082] It is understandable that the third communication port mentioned in this example is provided on the peripheral side of the first liquid outlet 112, which specifically refers to the third communication port being provided on the valve body 110 and always maintaining 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 provided on the liquid outlet pipe joint 116, the third communication port is provided on the peripheral wall of the liquid outlet pipe joint 116, so as to always maintain communication with the first liquid outlet 112 without being affected by the rotation of the valve core 120. The third communication port mentioned in this example is provided on the pipe wall of the liquid outlet pipe 300, which specifically refers to the third communication port being provided on the pipe wall of the end of the liquid outlet pipe 300 that is connected to the first liquid outlet 112, so that the fertilizer solution transported from the first fertilizer storage container can directly enter the liquid outlet pipe 300 through the third communication port.

[0083] In some examples, such as Figure 6 As shown, the differential pressure fertilization system 1 further includes a first fertilizer outlet pipe 500 with a first shut-off valve, connecting the first fertilizer outlet and the third connecting port via the first fertilizer outlet pipe 500. Thus, the arrangement of the first shut-off valve and the first fertilizer outlet pipe 500 allows the fertilizer solution exiting the first fertilizer outlet of the first fertilizer storage container to be rapidly transported to the third connecting port via the first fertilizer outlet pipe 500, while preventing the liquid in the liquid outlet pipe 300 from flowing back into the first fertilizer storage container 400 during the process of adding fertilizer to the first fertilizer storage container 400.

[0084] In some examples, such as Figure 6 As shown, the pressure differential fertilization system 1 further includes a second fertilizer storage container 600, which may be specifically provided with a fourth liquid inlet (not shown) and a second fertilizer outlet (not shown). The fourth liquid inlet is connected to the second connecting port 114, and the second fertilizer outlet is connected to the first liquid outlet 112 or to the liquid outlet pipe 300. Thus, through the above-mentioned structural arrangement, the pressure differential fertilization system 1 can be connected to two fertilizer storage containers at the same time. By connecting to the two fertilizer storage containers at the same time, fertilization can be automatically controlled, ensuring that the pressure differential fertilization system 1 stores sufficient fertilizer, thereby greatly reducing the number of times the relevant operators need to add and deliver fertilizer, further bringing great convenience to the relevant operators.

[0085] It is understandable that the fourth liquid inlet mentioned in this example is connected to the second communication port 114 mainly through a pipe or pipeline, including but not limited to the second communication pipeline mentioned above. Similarly, the second fertilizer outlet mentioned above is connected to the first liquid outlet 112 or to the liquid outlet pipeline 300 mainly through a pipe or pipeline, including but not limited to the second fertilizer outlet pipeline mentioned below. 700 In addition, the second fertilizer storage container 600 mentioned in this example is also mainly a tank structure, or other container structure that can realize fertilizer storage. The fourth liquid inlet is generally arranged near the bottom of the second fertilizer storage container 600, and the second fertilizer outlet is generally arranged near the top of the second fertilizer storage container 600. In this way, it can be ensured 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 it to the liquid outlet pipeline 300 through the second fertilizer outlet.

[0086] In some examples, such as Figure 6 As shown, the differential pressure fertilization system 1 further includes a fourth communication port (not shown) for communicating with the second fertilizer outlet. The fourth communication port is provided around the first liquid outlet 112 or in the wall of the liquid outlet pipe 300. Thus, the fourth communication port allows the second fertilizer outlet to more quickly communicate with the first liquid outlet 112 or the liquid outlet pipe 300. This allows the fertilizer container output from the second fertilizer outlet to more easily enter the liquid outlet pipe 300 through the fourth communication port, indirectly through the first liquid outlet 112, or directly into the liquid outlet pipe 300.

[0087] It is understandable that the fourth communication port mentioned in this example is provided on the peripheral side of the first liquid outlet 112, which specifically refers to the fourth communication port being provided on the valve body 110 and always maintaining 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 provided on the liquid outlet pipe joint 116, the fourth communication port is provided on the peripheral wall of the liquid outlet pipe joint 116, so as 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 this example is provided on the pipe wall of the liquid outlet pipe 300, which specifically refers to the fourth communication port being provided on the pipe wall of the end of the liquid outlet pipe 300 that is connected to the first liquid outlet 112, so that the fertilizer solution transported from the first fertilizer storage container can directly enter the liquid outlet pipe 300 through the fourth communication port.

[0088] In some examples, such as Figure 6As shown, the differential pressure fertilization system 1 further includes a second fertilizer outlet pipe 700 with a second shut-off valve, connecting the second fertilizer outlet and the fourth connecting port via the second fertilizer outlet pipe 700. Thus, the second shut-off valve and the second fertilizer outlet pipe 700 allow the fertilizer solution exiting the second fertilizer outlet of the second fertilizer storage container 600 to be rapidly transported to the fourth connecting port via the second fertilizer outlet pipe 700, while preventing the liquid in the liquid outlet pipe 300 from flowing back into the second fertilizer storage container 600 during the process of adding fertilizer to the second fertilizer storage container 600.

[0089] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the utility model concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An electric ball valve for fertilization, characterized in that: It includes valve body, valve core and drive module, among which, The valve body is provided with a first liquid inlet, a first liquid outlet and a first connecting port, and the first connecting port is arranged adjacent to the first liquid inlet; The valve core is built into 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 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 switch between the first state and the second state; Among them, when the electric ball valve is in the first state, the second liquid inlet is connected to the first liquid inlet, the second liquid outlet is connected to the first liquid outlet, and the first connecting port is completely closed; when the electric ball valve is in the second state, the second liquid inlet is connected to the first liquid inlet and the first connecting port at the same time, the second liquid outlet is connected to the first liquid outlet, and the first liquid outlet is partially closed.

2. The electric ball valve according to claim 1, characterized in that: The opening directions of the first liquid inlet, the first liquid outlet, and the first communication port are all radial directions of a target circle, and the target circle is a circle where the rotation path of the valve core is located.

3. The electric ball valve according to claim 2, characterized in that: The first liquid inlet and the first liquid outlet are arranged opposite to each other in the radial direction of the target circle, a liquid channel extending radially along the target circle is provided inside the valve core, and the second liquid outlet is connected to the second liquid inlet through the liquid channel inside the valve core.

4. The electric ball valve according to claim 1, characterized in that: The valve body is provided with a liquid inlet pipe joint, and the first liquid inlet is provided at the liquid inlet pipe joint; and / or, The valve body is provided with a liquid outlet pipe joint, and the first liquid outlet is provided at the liquid outlet pipe joint; and / or, The valve body is provided with a first communicating pipe joint, and the first communicating port is provided at the first communicating pipe joint.

5. The electric ball valve according to claim 1, characterized in that: The second liquid inlet is larger than the second liquid outlet.

6. The electric ball valve according to claim 1, characterized in that: It also includes a control box, which is connected to the valve body. The drive module is arranged on the control box. The valve core includes a first connecting member. The drive module includes a second connecting member. The first connecting member and the second connecting member are connected. The drive module drives the second connecting member to rotate to drive the valve core to rotate relative to the valve body.

7. An electric ball valve for fertilization, characterized in that: It includes valve body, valve core and drive module, among which, The valve body is provided with a first liquid inlet, a first liquid outlet, a first connecting port and a second connecting port, wherein the first connecting port and the second connecting port are respectively located on both sides of the first liquid inlet and are both arranged adjacent to the first liquid inlet; The valve core is built into 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 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 switch between the first state, the second state and the third state; In which, when the electric ball valve is in the first state, the second liquid inlet is connected to the first liquid inlet, the second liquid outlet is connected to the first liquid outlet, and the first connecting port and the second connecting port are all closed; when the electric ball valve is in the second state, the second liquid inlet is connected to the first liquid inlet and the first connecting port at the same time, the second liquid outlet is connected to the first liquid outlet, the second connecting 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 connected to the first liquid inlet and the second connecting port at the same time, the second liquid outlet is connected to the first liquid outlet, the first connecting port is all closed, and the first liquid outlet is partially closed.

8. The electric ball valve according to claim 7, characterized in that: The opening directions of the first liquid inlet, the first liquid outlet, the first communication port and the second communication port are all radial directions of a target circle, and the target circle is a circle where the valve core rotates.

9. The electric ball valve according to claim 8, characterized in that: The first liquid inlet and the first liquid outlet are arranged opposite to each other in the radial direction of the target circle, a liquid channel extending radially along the target circle is provided inside the valve core, and the second liquid outlet is connected to the second liquid inlet through the liquid channel inside the valve core.

10. The electric ball valve according to claim 7, characterized in that: The valve body is provided with a liquid inlet pipe joint, and the first liquid inlet is provided at the liquid inlet pipe joint; and / or, The valve body is provided with a liquid outlet pipe joint, and the first liquid outlet is provided at the liquid outlet pipe joint; and / or, The valve body is provided with a first connecting pipe joint, and the first connecting port is provided at the first connecting pipe joint; and / or, The valve body is provided with a second communicating pipe joint, and the second communicating port is provided at the second communicating pipe joint.

11. The electric ball valve according to claim 7, characterized in that: The second liquid inlet is larger than the second liquid outlet.

12. The electric ball valve according to claim 7, characterized in that: It also includes a control box, which is connected to the valve body. The drive module is arranged on the control box. The valve core includes a first connecting member. The drive module includes a second connecting member. The first connecting member and the second connecting member are connected. The drive module drives the second connecting member to rotate to drive the valve core to rotate relative to the valve body.

13. A pressure differential fertilization system, characterized in that: It comprises a liquid inlet pipe, a liquid outlet pipe, a first fertilizer storage container and an electric ball valve according to any one of claims 1 to 6, wherein: The liquid inlet pipe is connected to the first liquid inlet; The liquid outlet pipe is connected to the first liquid outlet and is used to output the liquid required for irrigation or fertilization; The first fertilizer storage container is provided with a third liquid inlet and a first fertilizer outlet. The third liquid inlet is communicated with the first connecting port, and the first fertilizer outlet is communicated with the first liquid outlet or the liquid outlet pipe.

14. The differential pressure fertilization system according to claim 13, wherein: It also includes a third communication port, which is used to communicate with the first fertilizer outlet, and the third communication port is arranged on the peripheral side of the first liquid outlet, or on the pipe wall of the liquid outlet pipe.

15. The differential pressure fertilization system according to claim 14, wherein: It also includes a first fertilizer outlet pipeline with a first stop valve, and the first fertilizer outlet is connected to the third communication port through the first fertilizer outlet pipeline.

16. A pressure differential fertilization system, characterized in that: It comprises a liquid inlet pipe, a liquid outlet pipe, a first fertilizer storage container, a second fertilizer storage container and an electric ball valve according to any one of claims 7 to 12, wherein: The liquid inlet pipe is connected to the first liquid inlet; The liquid outlet pipe is connected to the first liquid outlet and is used to output the liquid required for irrigation or fertilization; The first fertilizer storage container is provided with a third liquid inlet and a first fertilizer outlet, the third liquid inlet is connected to the first connecting port, and the first fertilizer outlet is connected to the first liquid outlet or the liquid outlet pipe; The second fertilizer storage container is provided with a fourth liquid inlet and a second fertilizer outlet, the fourth liquid inlet is communicated with the second connecting port, and the second fertilizer outlet is communicated with the first liquid outlet or the liquid outlet pipe.

17. The differential pressure fertilization system according to claim 16, wherein: It also includes a third communication port, which is used to communicate with the first fertilizer outlet. The third communication port is opened on the peripheral side of the first liquid outlet, or is opened on the wall of the liquid outlet pipe.

18. The differential pressure fertilization system according to claim 17, wherein: It also includes a first fertilizer outlet pipeline with a first stop valve, and the first fertilizer outlet is connected to the third communication port through the first fertilizer outlet pipeline.

19. The differential pressure fertilization system according to claim 16, wherein: It also includes a fourth communication port, which is used to communicate with the second fertilizer outlet. The fourth communication port is opened on the peripheral side of the first liquid outlet, or is opened on the wall of the liquid outlet pipe.

20. The differential pressure fertilization system according to claim 19, wherein: It also includes a second fertilizer outlet pipeline with a second shut-off valve, and the second fertilizer outlet is connected to the fourth communication port through the second fertilizer outlet pipeline.

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