CN111692348A - Farmland irrigation and drainage control valve, farmland irrigation and drainage equipment and farmland irrigation and drainage system - Google Patents

Abstract

The invention discloses a farmland irrigation and drainage control valve, farmland irrigation and drainage equipment and a farmland irrigation and drainage system, and relates to the technical field of farmland irrigation and drainage equipment, wherein the farmland irrigation and drainage control valve comprises: the valve shell comprises a valve cavity extending vertically and a pipe end connecting valve port and a filling and discharging connecting valve port which are respectively communicated with the valve cavity; the valve core is positioned in the valve cavity and can vertically move to control the connection and disconnection between the pipe end connecting valve port and the filling and draining connecting valve port; and the traction mechanism is used for driving the valve core to vertically move and comprises a traction rope, and one end of the traction rope is connected with the valve core. The farmland irrigation and drainage control valve also comprises an electric driving device for driving the fixed pulley to rotate. The farmland irrigation and drainage control valve also comprises a controller which is configured to control the action of the electric driving device according to a pre-recorded command or an external input command. The farmland irrigation and drainage control valve and the farmland irrigation and drainage equipment have simple and reasonable structures, are easy to produce and manufacture, and are beneficial to improving the farmland operation efficiency.

Description

Farmland irrigation and drainage control valve, farmland irrigation and drainage equipment and farmland irrigation and drainage system

Technical Field

The invention relates to the technical field of farmland irrigation and drainage equipment, in particular to a farmland irrigation and drainage control valve, farmland irrigation and drainage equipment and a farmland irrigation and drainage system.

Background

In agricultural production, water quantity control is often needed, for example, rice needs to be subjected to stages of irrigation and field soaking, shallow water rice transplanting, thin water tillering, drainage and field drying, irrigation and spike pregnancy, dry-wet alternative grouting and the like in the whole growth process. In the rice planting process, the paddy field is not always kept with water, but different water level control is adopted in different growth stages, so that the quality and the yield of the rice can be improved.

At present, common water level control management modes on the market have two types, one type is that the irrigation and drainage of irrigation water is carried out through directly digging ridge soil manually relatively originally, the water level of a farmland is mainly controlled by the upstream water level, the irrigation and drainage quantity is not favorably controlled, the soil on the ridge is easily lost under the impact of water flow, the water and soil conservation is not favorably realized, the soil sealing effect is not good directly after the irrigation and drainage is finished, and the water and soil are easily lost. The other mode is to design a special vertical lifting baffle, but the vertical lifting baffle has more use limitation, is not suitable for earth ridges and is more suitable for cement ridges, is mainly applied to research units or demonstration bases and is not widely popularized.

Disclosure of Invention

The invention aims to provide a novel farmland irrigation and drainage control valve, farmland irrigation and drainage equipment and a farmland irrigation and drainage system.

In order to achieve the above object, the present invention provides a farmland irrigation and drainage control valve comprising:

the valve shell comprises a valve cavity extending vertically, and a pipe end connecting valve port and a filling and discharging connecting valve port which are respectively communicated with the valve cavity;

the valve core is positioned in the valve cavity and can vertically move to control the connection and disconnection between the pipe end connecting valve port and the filling and draining connecting valve port; and

and the traction mechanism is used for driving the valve core to move vertically and comprises a traction rope, and one end of the traction rope is connected with the valve core.

In some embodiments, the agricultural irrigation and drainage control valve may further comprise an electric drive for driving the traction mechanism.

Optionally, the traction mechanism may further include a fixed pulley, and the other end of the traction rope is wound around the fixed pulley, and the electric driving device drives the fixed pulley to rotate.

Optionally, the farmland irrigation and drainage control valve may further comprise a controller configured to: the electric driving device can be controlled to act according to a pre-recorded command or an external input command.

Further, the farmland irrigation and drainage control valve can further comprise a touch switch, and the touch switch comprises:

the switch circuit board is arranged at the top of the valve shell and is electrically connected with the electric driving device;

the contact pin penetrates out of the switch circuit board downwards; and

and the touch control sheet is arranged on the traction rope and is positioned between the contact pin and the top wall of the valve core, and the touch control sheet and the valve core synchronously lift and can contact with the contact pin to control the electric driving device to stop.

Furthermore, the touch control sheet is movably sleeved on the pulling rope, and the touch control switch further comprises:

and the elastic buffer piece is movably sleeved on the traction rope, and two ends of the elastic buffer piece are respectively abutted against the top wall of the valve core and the bottom wall of the touch control sheet.

Optionally, the valve core may be in a hollow cylindrical shape, and the farmland irrigation and drainage control valve further includes a counterweight filled in a cylindrical cavity of the valve core.

Optionally, the valve core may be configured to be able to block the pipe end connection valve port and/or the fill and drain connection valve port, and a sealing member is disposed between the valve core and the pipe end connection valve port and/or between the valve core and the fill and drain connection valve port.

In some embodiments, the valve housing may include a valve housing top cover, a valve housing sleeve portion, and a pipe end connection portion, which are sequentially connected from top to bottom, the traction mechanism is located on the valve housing top cover, the valve element is located in a sleeve cavity of the valve housing sleeve portion, and the pipe end connection port and the filling and draining connection port are both formed on an outer wall of the pipe end connection portion.

Correspondingly, the invention also provides farmland irrigation and drainage equipment which comprises an irrigation and drainage pipeline and the farmland irrigation and drainage control valve, wherein the irrigation and drainage pipeline is used for penetrating through the ridge, two ends of the pipeline respectively extend out of the irrigation and drainage side and the farmland side of the ridge, the farmland irrigation and drainage control valve is arranged on at least one end of the irrigation and drainage pipeline, and the irrigation and drainage pipeline is connected with the pipe end connecting valve port.

In addition, the invention also provides a farmland irrigation and drainage system which comprises the farmland irrigation and drainage equipment.

The farmland irrigation and drainage control valve and the farmland irrigation and drainage equipment comprise the valve shell, the valve core and the traction mechanism, wherein the valve core and the traction mechanism are positioned in the valve cavity of the valve shell; the traction mechanism drives the valve core to vertically move through the traction rope, the valve shell comprises a pipe end connecting valve port and a filling and discharging connecting valve port which are respectively communicated with the valve cavity, and the valve core can vertically move to control the on-off between the pipe end connecting valve port and the filling and discharging connecting valve port, so that the purpose of through-flow or cut-off is achieved to realize the filling and discharging of a farmland, and the farmland operation efficiency is favorably improved; the farmland irrigation and drainage equipment and the farmland irrigation and drainage system further comprise irrigation and drainage pipelines which are used for penetrating through the ridges and the two ends of the pipelines respectively extend out of the irrigation and drainage sides and the farmland sides of the ridges, the ridges do not need to be directly excavated, water and soil loss is avoided, the installation of the farmland irrigation and drainage equipment is not limited by materials of the ridges, and the universality is good.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a schematic diagram of a field irrigation and drainage apparatus according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a cross-sectional view of the field irrigation and drainage control valve of FIG. 1;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic view of the pipe end coupling portion of FIG. 3;

fig. 6 and 7 are exploded views of the partially installed agricultural irrigation and drainage apparatus of fig. 1 from different perspectives.

Description of the reference numerals

100 farmland irrigation and drainage control valve

1 valve housing 11 valve cavity

12 pipe end connecting valve port 13 filling and discharging connecting valve port

14 valve housing cover 15 valve housing sleeve part

16 pipe end connection part 2 valve core

21 sealing element 3 traction mechanism

31 fixed pulley 32 traction rope

4 electric drive device 5 controller

51 touch switch 511 switch circuit board

512 contact pin 513 touch control sheet

514 elastomeric buffer 515 shim

516 control box 6 irrigation and drainage pipeline

7 ridge

300 farmland of 200 farmland irrigation and drainage equipment

400 drainage channel 500 irrigation channel

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.

The field irrigation and drainage control valve 100, the field irrigation and drainage apparatus 200, and the field irrigation and drainage system according to the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1 to 7, the farmland irrigation and drainage control valve 100 comprises a valve casing 1, a valve core 2 and a traction mechanism 3, and has the advantages of simple structure, easily-obtained components and low production cost. The valve casing 1 comprises a valve cavity 11 extending vertically, a pipe end connecting valve port 12 and a filling and discharging connecting valve port 13 which are respectively communicated with the valve cavity 11, the valve core 2 is positioned in the valve cavity 11 and can vertically move to control the on-off between the pipe end connecting valve port 12 and the filling and discharging connecting valve port 13, the traction mechanism 3 is used for driving the valve core 2 to vertically move and comprises a traction rope 32, and one end of the traction rope 32 is connected with the valve core 2. Compared with the manual sludge digging and irrigation and drainage mode which is troublesome and laborious and has poor irrigation and drainage control effect, the farmland irrigation and drainage control valve 100 can conveniently control irrigation and drainage, and is beneficial to improving the farmland operation efficiency.

There are various ways for the valve element 2 to control the connection and disconnection between the pipe end connection valve port 12 and the filling and draining connection valve port 13, for example, the valve element 2 may be configured to control the connection and disconnection between the pipe end connection valve port 12 and the filling and draining connection valve port 13 by plugging or opening the pipe end connection valve port 12, the valve element 2 may also be configured to control the connection and disconnection between the pipe end connection valve port 12 and the filling and draining connection valve port 13 by plugging or opening the filling and draining connection valve port 13, or the valve element 2 may also be configured to control the connection and disconnection between the pipe end connection valve port 12 and the filling and draining connection valve port 13 by plugging or opening the pipe end connection valve port 12 and the filling and draining connection valve port. As shown in fig. 2 and 3, the valve element 2 is moved up and down to close or open the fill/drain connection port 13, thereby controlling the connection/disconnection between the pipe-end connection port 12 and the fill/drain connection port 13.

Optionally, to improve the reliability of the valve 100, the valve 100 may also be provided with a seal 21. When the valve body 2 is arranged to control the opening/closing between the pipe-end connection port 12 and the drain/fill connection port 13 by closing or opening the pipe-end connection port 12, the seal member 21 may be provided between the valve body 2 and the pipe-end connection port 12, that is, the seal member 21 may be provided in at least one of the valve body 2 and the pipe-end connection port 12. When the valve element 2 controls the connection/disconnection between the pipe-end connection valve port 12 and the fill/drain connection valve port 13 by blocking or opening the fill/drain connection valve port 13, the sealing member 21 may be provided between the valve element 2 and the fill/drain connection valve port 13, that is, the sealing member 21 may be provided on at least one of the valve element 2 and the fill/drain connection valve port 13. When the valve body 2 is set to control the connection and disconnection between the pipe-end connection valve port 12 and the fill/drain connection valve port 13 by simultaneously closing or opening the pipe-end connection valve port 12 and the fill/drain connection valve port 13, at least one of the valve body 2 and the pipe-end connection valve port 12 and the fill/drain connection valve port 13 is provided with a sealing member 21. As shown in fig. 6, the sealing member 21 is an annular sealing rubber ring and is disposed on the bottom wall of the valve body 2.

Correspondingly, in order to adapt to different types of farmlands, the invention also provides farmland irrigation and drainage equipment 200, the farmland irrigation and drainage equipment 200 comprises an irrigation and drainage pipeline 6 and the farmland irrigation and drainage control valve 100, the irrigation and drainage pipeline 6 is used for penetrating through the ridge 7, two ends of the pipeline respectively extend out of the irrigation and drainage side and the farmland side of the ridge 7, the farmland irrigation and drainage control valve 100 is arranged on at least one end of the irrigation and drainage pipeline 6, and the irrigation and drainage pipeline 6 is connected with the pipe end connecting valve port 12. Compared with a manual mud digging irrigation and drainage mode, water and soil loss is easy, the irrigation and drainage control effect is poor, and the installation and use of the vertical lifting baffle are limited by the materials of the ridges.

Correspondingly, the invention also provides a farmland irrigation and drainage system, which can comprise farmland irrigation and drainage equipment 200 as irrigation equipment, farmland irrigation and drainage equipment 200 as drainage equipment, or irrigation equipment and drainage equipment which can be both the farmland irrigation and drainage equipment 200. Referring to fig. 1, the irrigation and drainage pipeline 6 is arranged in the ridge in a penetrating manner, and two ends of the irrigation and drainage pipeline 6 are respectively communicated with the farmland 300 and the irrigation channel 500, or the irrigation and drainage pipeline 6 is arranged in the ridge in a penetrating manner, and two ends of the irrigation and drainage pipeline 6 are respectively communicated with the farmland 300 and the drainage channel 400. That is, water in the field 300 may be drained through the field irrigation rig 200 to the drain channel 400, and/or water in the irrigation channel 500 may be poured through the field irrigation rig 200 into the field 300. When the farmland irrigation and drainage device 200 is used for irrigation, the irrigation and drainage pipeline 6 is arranged in a ridge between an irrigation canal and a farmland, and the farmland irrigation and drainage control valve 100 can be arranged on one side of the ridge close to the irrigation canal, one side of the ridge close to the farmland or both sides of the ridge are provided with the farmland irrigation and drainage control valves 100. Similarly, when the irrigation and drainage equipment 200 is used for drainage, the irrigation and drainage pipeline 6 is arranged in the ridge between the drainage channel and the farmland, and the irrigation and drainage control valve 100 for the farmland can be arranged on one side of the ridge close to the drainage channel, on one side of the ridge close to the farmland or on both sides of the ridge, and the irrigation and drainage control valve 100 for the farmland can be arranged.

When the farmland irrigation and drainage equipment 200 is idle, in order to avoid external objects from entering, blocking, corroding irrigation and drainage pipelines 6 and the like, farmland irrigation and drainage control valves 100 can be arranged on both sides of the ridge. The irrigation and drainage pipe 6 may be disposed as close to the bottom surface of the farmland as possible in order to smoothly irrigate or drain the farmland.

Optionally, in order to realize automatic control and intelligent control, and improve the efficiency of farm work and the yield of agricultural products, the farmland irrigation and drainage control valve 100 may further comprise an electric driving device 4 for driving the traction mechanism 3. For example, the electric driving device 4 may include a linear slide rail slider assembly and a telescopic rod assembly for driving the slider to move, one end of the traction rope 32 is connected to the valve element 2, the other end of the traction rope 32 is connected to the slider, and the telescopic rod assembly drives the slider to move up and down along the linear slide rail to drive the traction rope 32 to move. The structure of the electric driving device 4 may be various, and the present invention is not limited thereto. Of course, the farmland irrigation and drainage control valve 100 can also manually operate the traction rope 32 to lift the valve core 2 for irrigation and drainage, but the invention is not limited thereto.

Alternatively, the traction mechanism 3 may further include a fixed pulley 31, the other end of the traction rope 32 is wound on the fixed pulley 31, the electric driving device 4 drives the fixed pulley 31 to rotate, and the electric driving device 4 may be, for example, a rotating motor. Parts such as rotating electrical machines, fixed pulley 31, haulage rope 32 all easily draw materials and assemble, are favorable to the farmland to irritate row equipment 200 to realize simple, low-cost automated control and intelligent control, improve the efficiency of farming operation and the output of agricultural product. Specifically, as shown in fig. 5 and 6, the electric driving device 4 and the traction mechanism 3 are arranged in a control box 516 on the top of the valve housing 1, the electric driving device 4 drives the fixed pulley 31 to rotate, and by changing the direction of rotation of the electric driving device 4, the traction rope 32 can be wound on the fixed pulley 31 or released downwards from the fixed pulley 31 so that the traction rope 32 can traction the valve core 2 to move up and down.

Optionally, the farmland irrigation and drainage control valve 100 may further comprise a controller 5, the controller 5 being configured to: the operation of the electric drive device 4 can be controlled according to a command entered in advance or an external input command. Specifically, as shown in fig. 5 and 6, the controller 5 may be provided in a control box 516 at the top of the valve housing 1. By arranging the controller 5, an external instruction can be directly input to realize convenient manual control on/off of the electric driving device 4, the external instruction can be input in a wired or wireless mode, for example, a communication module can be arranged, and the communication module can also be connected with an external terminal to realize remote control and the like; the electric driving device 4 can be controlled to be turned on or off by recording an instruction or a preset program in advance, so that the farmland irrigation and drainage control valve 100 and the farmland irrigation and drainage equipment 200 can be intelligently controlled. Can be under unmanned on duty's the condition, controller 5 can set up to adjust irrigation plan according to weather condition and soil condition automatically, for example under the abundant condition of precipitation, controller 5 stops to irrigate the farmland through control, and reducible frequency of irrigating to crops repeatedly from this has practiced thrift the water resource among the irrigation system.

Alternatively, the irrigation and drainage device 200 may further comprise a water level detection module, such as an ultrasonic detection module, for detecting the water level in real time, and calculating the height of the liquid level in the farmland in real time by sending and receiving ultrasonic signals, and the controller 5 is configured to control the electric driving device 4 to operate according to the water level detection signal of the water level detection module, so as to control the irrigation and drainage operation.

Therefore, the farmland irrigation and drainage device 200 can automatically sense the water level height of the farmland and carry out real-time, automatic and intelligent water level management, thereby saving time and labor, further improving the efficiency of farm work and the yield of agricultural products, setting different irrigation water levels according to the characteristics of the requirement of plants on soil moisture, leading the plants to obtain the best growth environment and achieving the purposes of increasing both production and income.

Further, to implement the automatic stop function and the braking protection, the controller 5 may include a touch switch 51. Alternatively, the touch switch 51 may include a switch circuit board 511, a contact pin 512, and a touch sheet 513, as shown in fig. 3 and 4, the switch circuit board 511 may be disposed in a control box 516 on the top of the valve housing 1 and electrically connected to the electric driving device 4, the contact pin 512 penetrates downward from the switch circuit board 511, the touch sheet 513 is disposed on the traction rope 32 and located between the contact pin 512 and the top wall of the valve core 2, and the touch sheet 513 is lifted synchronously with the valve core 2 and can control the electric driving device 4 to stop by contacting with the contact pin 512. When the electric driving device 4 controls the fixed pulley 31 to rotate so as to wind the traction rope 32 on the fixed pulley 31, the traction rope 32 pulls the valve core 2 to ascend, the touch control sheet 513 also ascends along with the pulling of the traction rope 32, and when the touch control sheet 513 is in contact with the contact pin 512 on the switch circuit board 511, the switch circuit board 511 controls the electric driving device 4 to stop.

Further, since the strength of the contact pin 512 is low, when the pulling rope 32 pulls the valve element 2 upward, a large impact is likely to occur when the touch pad 513 abuts against the contact pin 512, so that the contact pin 512 is damaged. Therefore, in order to alleviate the impact when the touch sheet 513 contacts the contact pin 512 on the switch circuit board 511, as shown in fig. 2 and fig. 6, the touch sheet 513 is movably sleeved on the pulling rope 32, the touch switch 51 may further include an elastic buffer 514, the elastic buffer 514 is movably sleeved on the pulling rope 32, and two ends of the elastic buffer 514 are respectively abutted against the top wall of the valve element 2 and the bottom wall of the touch sheet 513, so as to alleviate the impact when the touch sheet 513 is abutted against the contact pin 512. The elastic buffer 514 may be an elastic element such as a spring.

Of course, the controller 5 may also preset a certain number of rotation turns for the electric driving device 4 to limit the lifting stroke of the valve core 2, and the electric driving device 4 is automatically stopped when the valve core 2 reaches the preset stroke, but the invention is not limited thereto.

Alternatively, the valve core 2 may have a hollow cylindrical shape, and the field irrigation and drainage control valve 100 further includes a weight (not shown) filled in the cylindrical cavity of the valve core 2. The counterweight is arranged in the column cavity of the valve core 2, so that the valve core 2 can overcome the buoyancy of water to move downwards under enough gravity to enable the interception between the pipe end connecting valve port 12 and the irrigation and drainage connecting valve port 13, and the counterweight is arranged in the column cavity of the valve core 2, so that the whole space of the valve body can be saved. In order to make the valve core 2 move up and down more smoothly, the water level can be always between the top wall and the top wall of the valve core 2.

Alternatively, as shown in fig. 3, 5 and 6, the valve housing 1 may include a valve housing top cover 14, a valve housing sleeve portion 15 and a pipe end connection portion 16 connected in sequence from top to bottom, the pulling mechanism 3 is located on the valve housing top cover 14, one end of the pulling rope 32 extends downward through the valve housing top cover 14 and is connected with the valve core 2, and the valve core 2 is located in a sleeve cavity of the valve housing sleeve portion 15. The outer wall of the pipe end connecting portion 16 is formed with an opening connected to the valve casing sleeve portion 15, in addition to the pipe end connecting port 12 and the irrigation and drainage connecting port 13, the outer wall of the pipe end connecting portion 16 is formed with an opening connected to the valve casing sleeve portion 15, the pipe end connecting port 12 is used for connecting to the irrigation and drainage pipeline 6, and the valve core 2 can be moved up and down to close or open the irrigation and drainage connecting port 13, so that the farmland 300 can be communicated with or blocked from the drainage channel 400 or the irrigation channel 500.

The control principle of the agricultural irrigation and drainage apparatus 200 of fig. 2 and 3 will be described as follows: when irrigation or drainage is not needed between the farmland 300 and the irrigation channel 500 or the drainage channel 400, the controller 5 controls the electric driving device 4 to drive the valve core 2 to move downwards under the action of gravity so as to block the irrigation and drainage connecting valve port 13; when irrigation or drainage is required to be performed on the farmland 300, the controller 5 controls the electric driving device 4 to drive the valve core 2 to move upwards to open the irrigation and drainage connecting valve port 13, and at the moment, the farmland 300 is communicated with the irrigation channel 500 or the drainage channel 400 so as to perform irrigation or drainage.

In conclusion, the invention provides the farmland irrigation and drainage control valve 100, the farmland irrigation and drainage equipment 200 and the farmland irrigation and drainage system which are novel in structure, and the farmland irrigation and drainage control valve 100 and the farmland irrigation and drainage equipment 200 are simple and reasonable in structure, easy to produce and manufacture and beneficial to improving the farmland operation efficiency.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (11)

1. An agricultural irrigation and drainage control valve, characterized in that the agricultural irrigation and drainage control valve (100) comprises:

the valve comprises a valve casing (1) and a valve body (11), wherein the valve casing comprises a valve cavity (11) extending vertically, and a pipe end connecting valve port (12) and a filling and draining connecting valve port (13) which are respectively communicated with the valve cavity (11);

the valve core (2) is positioned in the valve cavity (11), and the valve core (2) can vertically move to control the connection and disconnection between the pipe end connecting valve port (12) and the filling and draining connecting valve port (13); and

the traction mechanism (3) is used for driving the valve core (2) to move vertically and comprises a traction rope (32), and one end of the traction rope (32) is connected with the valve core (2).

2. An agricultural irrigation and drainage control valve according to claim 1, characterized in that the agricultural irrigation and drainage control valve (100) further comprises an electric drive (4) for driving the traction mechanism (3).

3. The farmland irrigation and drainage control valve as claimed in claim 2, wherein the traction mechanism (3) further comprises a fixed pulley (31), the other end of the traction rope (32) is wound on the fixed pulley (31), and the electric driving device (4) drives the fixed pulley (31) to rotate.

4. The agrohorticultural control valve according to claim 2, wherein the agrohomvalve (100) further comprises a controller (5), the controller (5) being configured to: the electric drive device (4) can be controlled to act according to a pre-recorded command or an external input command.

5. The agronostream control valve according to claim 2, characterized in that said agronostream control valve (100) further comprises a touch switch (51), said touch switch (51) comprising:

the switch circuit board (511) is arranged at the top of the valve shell (1) and is electrically connected with the electric driving device (4);

the contact pins (512) penetrate out of the switch circuit board (511) downwards; and

the touch control sheet (513) is arranged on the traction rope (32) and located between the contact pin (512) and the top wall of the valve core (2), and the touch control sheet (513) and the valve core (2) are lifted synchronously and can be contacted with the contact pin (512) to control the electric driving device (4) to stop.

6. The farmland irrigation and drainage control valve as claimed in claim 5, wherein the touch control sheet (513) is movably sleeved on the pulling rope (32), and the touch control switch (51) further comprises:

the elastic buffer piece (514) is movably sleeved on the traction rope (32), and two ends of the elastic buffer piece (514) are respectively abutted to the top wall of the valve core (2) and the bottom wall of the touch control piece (513).

7. The farmland irrigation and drainage control valve as claimed in claim 1, wherein the valve core (2) is in a hollow cylindrical shape, and the farmland irrigation and drainage control valve (100) further comprises a counterweight filled in a cylindrical cavity of the valve core (2).

8. A farmland irrigation and drainage control valve according to claim 1, wherein the valve core (2) is arranged to be able to block the pipe end connection valve port (12) and/or the irrigation and drainage connection valve port (13), and a sealing member (21) is arranged between the valve core (2) and the pipe end connection valve port (12) and/or between the valve core (2) and the irrigation and drainage connection valve port (13).

9. A farmland irrigation and drainage control valve according to any one of claims 1 to 8, wherein the valve casing (1) comprises a valve casing top cover (14), a valve casing sleeve portion (15) and a pipe end connection portion (16) which are sequentially connected from top to bottom, the traction mechanism (3) is positioned on the valve casing top cover (14), the valve core (2) is arranged in a sleeve cavity of the valve casing sleeve portion (15), and the pipe end connection valve port (12) and the irrigation and drainage connection valve port (13) are formed on the outer wall of the pipe end connection portion (16).

10. A farmland irrigation and drainage device, characterized in that the farmland irrigation and drainage device (200) comprises an irrigation and drainage pipeline (6) and a farmland irrigation and drainage control valve (100) according to any one of claims 1-9, wherein the irrigation and drainage pipeline (6) is used for penetrating through a ridge (7) and two ends of the pipeline respectively extend out from the irrigation and drainage side and the farmland side of the ridge (7), the farmland irrigation and drainage control valve (100) is arranged on at least one end of the irrigation and drainage pipeline (6), and the irrigation and drainage pipeline (6) is connected with the pipe end connecting valve port (12).

11. An agricultural irrigation and drainage system comprising the agricultural irrigation and drainage apparatus of claim 10.

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