CN115978262A - Valve and irrigation system - Google Patents

Abstract

The invention discloses a valve and an irrigation system, wherein the valve comprises a valve body, a valve cavity and a pressure measuring cavity are formed in the valve body, the valve cavity is used for conveying flowing media, the valve cavity is communicated with the pressure measuring cavity through a communicating structure so that the pressure of the valve cavity is the same as that of the pressure measuring cavity, the pressure measuring cavity is provided with a pressure sensor, and the communicating structure and the pressure sensor are arranged in a staggered mode so that media flowing into the pressure measuring cavity from the valve cavity cannot directly impact the pressure sensor. The pressure sensor can obtain the pressure of the liquid flowing in the valve by measuring the pressure of the liquid in the pressure measuring cavity under the condition that the liquid in the pressure measuring cavity is kept in a stable state, and the pressure sensor can not cause inaccurate detection results due to the impact of the liquid flowing in the valve cavity when in detection.

Description

Valve and irrigation system

Technical Field

The invention relates to the technical field of valves, in particular to a valve and an irrigation system.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). In general, a pressure sensor is provided in the valve to detect the pressure of the water flow in the valve.

In the prior art, a pressure sensor of the valve is generally directly arranged on the side wall of the valve body, and the pressure of water flow in the valve cannot be accurately detected due to direct impact of the water flow in the valve in the use process.

Disclosure of Invention

The invention aims to provide a valve and an irrigation system, which can solve the problem that in the prior art, a pressure sensor on the valve cannot accurately detect the water flow pressure in the valve because the pressure sensor is directly impacted by water flow.

In order to achieve the purpose, the invention adopts the following technical scheme:

on one hand, the valve comprises a valve body, wherein a valve cavity and a pressure measuring cavity are formed in the valve body, the valve cavity is used for conveying flowing media, the valve cavity is communicated with the pressure measuring cavity through a communicating structure, so that the pressure of the valve cavity is the same as that of the pressure measuring cavity, the pressure measuring cavity is provided with a pressure sensor, and the communicating structure and the pressure sensor are arranged in a staggered mode, so that the pressure sensor cannot be directly impacted by media flowing into the pressure measuring cavity from the valve cavity.

Preferably, the valve body comprises a plurality of valve sections, the adjacent valve sections are fixedly connected through a thread structure, the valve cavity is formed inside the valve sections, and the pressure measuring cavity is formed on the connecting surface of the adjacent valve sections.

Preferably, a groove is formed in the connecting surface of at least one of the two adjacent valve sections, and the groove and the connecting surface of the corresponding valve section jointly form the pressure measuring cavity, or the grooves in the two valve sections jointly cooperate to form the pressure measuring cavity.

Preferably, the groove is an annular groove arranged around the periphery of the valve section, and sealing rings are arranged on two sides of the groove.

Preferably, the communicating structure is a communicating hole for communicating the valve cavity with the pressure measuring cavity, a sensor mounting hole for mounting the pressure sensor is further formed in the side wall of the pressure measuring cavity, and the communicating hole and the sensor mounting hole are arranged in a staggered mode.

Preferably, one end of the pressure sensor is connected with the control module, and the other end of the pressure sensor is installed in the sensor installation hole.

Preferably, the valve body comprises a first valve section, a second valve section and a third valve section, a first valve cavity is formed in the first valve section, the second valve section and the third valve section are respectively connected to the first valve section, and the second valve cavity and the third valve cavity are formed together with the first valve section; the second valve cavity and the third valve cavity are provided with corresponding pressure measuring cavities, and the two pressure measuring cavities are provided with pressure sensors.

Preferably, the valve body comprises a first valve section, a second valve section and a third valve section, a first valve cavity is formed in the first valve section, the second valve section and the third valve section are respectively connected to the first valve section, and the second valve cavity and the third valve cavity are formed together with the first valve section; the pressure measuring cavity is arranged corresponding to the second valve cavity or the third valve cavity, and a pressure sensor is arranged in the pressure measuring cavity.

Preferably, a valve core is arranged in the first valve cavity, the second valve cavity and the third valve cavity are respectively arranged at two sides of the first valve cavity, and the second valve cavity and/or the third valve cavity can be selectively controlled to be communicated with the first valve cavity through the valve core.

Preferably, the two ends of the first valve section are respectively provided with an internal thread, the end parts of the second valve section and the third valve section are respectively provided with an external thread, and the second valve section and the third valve section are respectively installed on the inner side of the first valve section through a thread structure.

Preferably, the valve further comprises a driving device arranged on one side of the valve body, and the driving device is in transmission connection with the valve core and is used for driving the valve core to move in the first valve cavity.

Preferably, the drive device comprises a mounting housing in which the control module is disposed.

Preferably, the mounting shell is further provided with a power device, a transmission assembly and a fitting piece, the fitting piece is in transmission connection with the valve core, the transmission assembly is in transmission connection with the fitting piece, and the power device is in transmission connection with the transmission assembly.

Preferably, the transmission assembly comprises a first gear and a second gear which are meshed with each other, and a worm wheel and a worm which are meshed with each other, the first gear is in transmission connection with an output shaft of the power device, and the second gear is fixedly connected with the worm.

Preferably, the transmission assembly further comprises a retainer, and the power device, the worm wheel and the worm are arranged in the mounting shell through the retainer.

Preferably, the valve further comprises a valve cover, wherein the valve cover is connected with the valve body and used for limiting the valve core in the valve body.

Preferably, the system further comprises a communication module, wherein the communication module is arranged on the control module and is used for being in communication connection with the control terminal and the control module.

In another aspect, the invention also provides an irrigation system comprising a valve as described above.

Preferably, the control system further comprises a control terminal, and the control terminal is used for controlling the working state of the valve.

Compared with the prior art, the beneficial effect of this scheme lies in:

this scheme sets up the connectivity structure on the valve body and makes valve pocket and pressure measurement chamber intercommunication to pressure sensor and connectivity structure dislocation set on with the pressure measurement chamber, during the use partial liquid in the valve can get into the pressure measurement chamber and keep static after being full of whole pressure measurement chamber, pressure sensor can obtain the pressure of the liquid that flows in the valve through the pressure of measuring the interior liquid of pressure measurement chamber, because the pressure sensor of this scheme is keeping liquid under the stable state at pressure measurement intracavity and detecting, consequently it can not cause the testing result inaccurate because of receiving the impact of the liquid that flows in the valve pocket when detecting.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

FIG. 1 is a schematic view of the overall structure of a valve according to an embodiment of the present invention;

FIG. 2 is a sectional view of the overall structure of the valve according to the embodiment of the present invention;

FIG. 3 is an exploded view of the overall structure of the valve according to the embodiment of the present invention;

fig. 4 is a schematic view of the overall structure of the valve body of the valve according to the embodiment of the invention;

FIG. 5 is a schematic view of the overall structure of a valve core of the valve according to the embodiment of the invention;

fig. 6 is an exploded view of the overall structure of the driving device of the valve according to the embodiment of the present invention;

fig. 7 is a schematic diagram of the overall structure of a fitting of the valve according to the embodiment of the present invention.

In the figure:

10. a valve body; 11. a first valve section; 110. a first valve chamber; 1101. the valve core is matched with the groove; 111. a sensor mounting hole; 112. inserting holes; 12. a second valve section; 120. a second valve cavity; 121. a second communication hole; 122. a second annular groove; 123. a second pressure sensor; 13. a third valve section; 130. a third valve cavity; 131. a third communication hole; 132. a third annular groove; 133. a third pressure sensor; 20. a valve core; 201. a first valve bore; 202. a second valve hole; 203. a third valve hole; 204. a mating groove; 21. a boss portion; 30. a valve cover; 301. connecting holes; 31. a first connection section; 32. a second connection section; 40. a drive device; 41. installing a shell; 410. a mounting cavity; 411. an upper housing; 412. a lower housing; 4120. a first perforation; 4121. a second perforation; 42. a power plant; 43. a transmission assembly; 431. a first gear; 432. a second gear; 433. a worm gear; 434. a worm; 435. a holder; 4351. putting on a shelf; 4352. putting down the shelf; 44. a mating member; 441. a first mating portion; 442. a second fitting portion; 443. a connecting portion; 45. and a control module.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the following detailed description of embodiments of the technical solutions of the present invention is made, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of protection of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-7, the embodiment of the present invention provides a valve, which can be used for opening and closing a pipeline and controlling the flow direction in an agricultural irrigation system. Of course, the valve can also be used for adjusting and controlling parameters such as pressure and flow of the conveying medium in other pipeline systems.

Specifically, the valve comprises a valve body 10, a valve cavity and a pressure measuring cavity are formed in the valve body 10, the valve cavity is used for conveying flowing media, the valve cavity is communicated with the pressure measuring cavity through a communicating structure, so that the pressure of the valve cavity is the same as that of the pressure measuring cavity, the pressure measuring cavity is provided with a pressure sensor, and the communicating structure and the pressure sensor are arranged in a staggered mode, so that the media flowing into the pressure measuring cavity from the valve cavity cannot directly impact the pressure sensor.

The pressure sensor can obtain the pressure of flowing liquid in the valve by measuring the pressure of the liquid in the pressure measuring cavity, and because the pressure sensor of the embodiment detects the liquid in the pressure measuring cavity in a state that the liquid is kept in a stable state, the detection result is not accurate due to the fact that the pressure sensor is impacted by the flowing liquid in the valve cavity when detecting.

Specifically, the staggered arrangement in the present scheme means that the opening of the communicating structure is not directly opposite to the installation position of the pressure sensor, that is, the arrangement position of the pressure sensor is not located on the axis perpendicular to the plane where the opening of the communicating structure is located.

In an embodiment of the present invention, the valve body 10 includes a plurality of valve segments, adjacent valve segments are fixedly connected by a thread structure, the valve cavity is formed inside the valve segments, and the pressure measuring cavity is formed on a connecting surface of the adjacent valve segments. Wherein the valve sections are adapted to be connected to pipes in an irrigation system or other systems, respectively.

It is understood that the specific number of the valve segments can be set reasonably according to actual needs, and can be one, two, three or even more.

Optionally, a groove is arranged on a connecting surface of at least one of the two adjacent valve sections, and the groove and the connecting surface of the corresponding valve section together form a pressure measuring cavity, or the grooves on the two valve sections cooperate together to form a pressure measuring cavity. The recess is the annular recess that sets up around the week portion of valve section, and the both sides of recess are provided with the sealing washer. It is understood that the groove may be a full circumferential annular groove or a non-full circumferential annular groove.

In another embodiment of the present invention, the communicating structure is a communicating hole communicating the valve chamber and the pressure measuring chamber, a sensor mounting hole 111 for mounting the pressure sensor is further provided on the side wall of the pressure measuring chamber, and the communicating hole and the sensor mounting hole 111 are arranged in a staggered manner.

The pressure measuring cavity of the embodiment is a closed structure, and only the sensor mounting hole 111 and the communication hole are arranged on the pressure measuring cavity, wherein the sensor mounting hole 111 is used for mounting the pressure sensor, and the communication hole is used for communicating the pressure sensor with the valve cavity, so that when the pressure is measured in a stable state, liquid in the pressure measuring cavity is kept still, and the pressure sensor cannot be impacted by flowing liquid in the valve cavity to cause inaccurate detection.

Optionally, a control module 45 is further included, and one end of the pressure sensor is connected to the control module 45, and the other end of the pressure sensor is installed in the sensor installation hole 111. The pressure sensor of the present embodiment may transmit the measured pressure value to the control module 45.

It is understood that the pressure sensor of the present embodiment can be mounted in the sensor mounting hole 111 by a common mounting method such as screwing.

Referring to fig. 3, in an embodiment of the present invention, the valve body 10 includes a first valve section 11, a second valve section 12 and a third valve section 13, the first valve section 11 forms a first valve cavity 110 therein, the second valve section 12 and the third valve section 13 are respectively connected to the first valve section 11 and form a second valve cavity 120 and a third valve cavity 130 together with the first valve section 11, and ends of the second valve section 12 and the third valve section 13 away from the first valve section 11 can be connected to a pipeline in an irrigation system or other pipeline systems through a connecting member.

The second valve chamber 120 and the third valve chamber 130 are provided with corresponding pressure measuring chambers, and the two pressure measuring chambers are provided with pressure sensors, so that the liquid pressures in the second valve chamber 120 and the third valve chamber 130 can be accurately measured respectively. That is, a second pressure measuring chamber is provided corresponding to the second valve chamber 120, the second pressure measuring chamber is provided with the second pressure sensor 123, and a third pressure measuring chamber is provided corresponding to the third valve chamber 130, and the third pressure measuring chamber is provided with the third pressure sensor 133.

Specifically, the second valve section 12 and the third valve section 13 are respectively provided with a second communication hole 121 and a third communication hole 131, the peripheral walls of the second valve section 12 and the third valve section 13 are respectively provided with a second annular groove 122 and a third annular groove 132, and the second annular groove 122 and the third annular groove 132 are respectively communicated with the second communication hole 121 and the third communication hole 131.

The two sides of the second annular groove 122 and the third annular groove 132 are respectively provided with a sealing ring groove, a sealing ring is arranged in the sealing ring groove, and when the second valve section 12 and the third valve section 13 are connected to the first valve section 11, the second annular groove 122 and the third annular groove 132 are respectively matched with the inner side wall of the first valve cavity 110 to form a closed second pressure measuring cavity and a closed third pressure measuring cavity.

The first valve segment 11 has two sensor mounting holes 111 corresponding to the second annular groove 122 and the third annular groove 132, the second pressure sensor 123 and the third pressure sensor 133 are respectively mounted in the two sensor mounting holes 111, and the two sensor mounting holes 111 are respectively disposed in a staggered manner with respect to the second communication hole 121 and the third communication hole 131.

It should be noted that the way that the pressure measuring chamber and the pressure sensor are disposed in cooperation in both the second valve chamber 120 and the third valve chamber 130 is not a limitation to the present application, and in other embodiments, a scheme of disposing the pressure measuring chamber and the pressure sensor only in one of the second valve chamber 120 and the third valve chamber 130 may also be adopted.

Specifically, referring to fig. 2, a valve core 20 is disposed in the first valve chamber 110, and the second valve chamber 120 and the third valve chamber 130 are disposed on two sides of the first valve chamber 110, respectively, and the second valve chamber 120 and/or the third valve chamber 130 can be selectively controlled by the valve core 20 to communicate with the first valve chamber 110.

Specifically, referring to fig. 5, the valve core 20 is substantially spherical, a first valve hole 201, a second valve hole 202, and a third valve hole 203 are formed in the valve core 20 to communicate with each other, and the valve core 20 is disposed in the first valve chamber 110. In this embodiment, the valve core 20 may be rotated to communicate the second valve chamber 120 and the third valve chamber 130 with the first valve chamber 110 through the first valve hole 201, the second valve hole 202 and the third valve hole 203, and it is understood that the valve hole arrangement structure in the above embodiment can communicate the second valve chamber 120 and the third valve chamber 130 with the first valve chamber 110 at the same time, and in other embodiments, different valve hole arrangement positions may be adopted, or the number of valve holes may be adjusted, so that the second valve chamber 120 and the third valve chamber 130 communicate with the first valve chamber 110 respectively.

Alternatively, referring to fig. 3, both ends of the first valve section 11 are respectively provided with an internal thread, ends of the second valve section 12 and the third valve section 13 are respectively provided with an external thread, and the second valve section 12 and the third valve section 13 are respectively installed inside the first valve section 11 through a thread structure. Of course, in other embodiments, the second valve section 12 and the third valve section 13 may be connected with the first valve section 11 in other manners.

Further, the valve further comprises a driving device 40 disposed on one side of the valve body 10, wherein the driving device 40 is in transmission connection with the valve core 20, and is used for driving the valve core 20 to move in the first valve cavity 110, so as to achieve that the second valve cavity 120 and the third valve cavity 130 are respectively communicated with the first valve cavity 110 or the second valve cavity 120 and the third valve cavity 130 are simultaneously communicated with the first valve cavity 110. The movement of the valve core 20 in the first valve chamber 110 may be rotation or movement or oscillation, and in this embodiment, the valve core 29 is driven by the driving device 40 to rotate in the first valve chamber 110 as an example.

The driving device 40 includes a mounting case 41, and the control module 45 is disposed in the mounting case 41.

Specifically, as shown in fig. 6, the mounting housing 41 includes an upper housing 411 and a lower housing 412 connected up and down, the lower housing 412 is connected to the valve body 10, and the upper housing 411 and the lower housing 412 jointly enclose the mounting cavity 410. The lower housing 412 is further provided with two first through holes 4120 corresponding to the sensor mounting holes 111 one to one, and one end of the second pressure sensor 123 and one end of the third pressure sensor 133 are inserted into the mounting housing 41 through the first through hole 4120 to connect to the control module 45.

Furthermore, a power device 42, a transmission assembly 43 and a fitting piece 44 are arranged in the mounting shell 41, the fitting piece 44 is in transmission connection with the valve core 20, the transmission assembly 43 is in transmission connection with the fitting piece 44, and the power device 42 is in transmission connection with the transmission assembly 43.

Specifically, as shown in fig. 6, the transmission assembly 43 includes a first gear 431 and a second gear 432 engaged with each other, and a worm wheel 433 and a worm 434 engaged with each other, the first gear 431 is in transmission connection with the output shaft of the power device 42, and the second gear 432 is fixedly connected with the worm 434.

When the transmission assembly 43 works, the power device 42 drives the first gear 431 to rotate, the first gear 431 drives the second gear 432 and the worm 434 to rotate, the worm 434 drives the worm wheel 433 to rotate, the worm wheel 433 drives the fitting piece 44 to rotate, and the fitting piece 44 drives the valve element 20 to rotate, so that the second valve chamber 120 and the third valve chamber 130 are controlled to be respectively communicated with the first valve chamber 110, or the second valve chamber 120 and the third valve chamber 130 are controlled to be simultaneously communicated with the first valve chamber 110.

Alternatively, the power device 42 is a drive motor. Of course, in other embodiments, the power device 42 may be other devices.

Further, as shown in fig. 7, the fitting member 44 includes a first fitting portion 441, a second fitting portion 442, and a connecting portion 443 connected between the first fitting portion 441 and the second fitting portion 442.

The first valve section 11 and the lower housing 412 have an insertion hole 112 and a second through hole 4121, respectively, the insertion hole 112 and the second through hole 4121 are coaxially arranged, and the fitting 44 is inserted into the first valve chamber 110 through the insertion hole 112 and the second through hole 4121.

As shown in fig. 2 and 5, the valve element 20 is provided with a convex portion 21 in a protruding manner, a valve element engagement groove 1101 engaged with the convex portion 21 is further formed in the outer periphery of the insertion hole 112, and an engagement groove 204 is formed in the convex portion 21. The first engaging portion 441 is adapted to be engaged with the engaging groove 204 of the valve body 20, the second engaging portion 442 is inserted into the axial hole of the worm wheel 433, and the connecting portion 443 is adapted to be inserted into the insertion hole 112 and the second through hole 4121.

Optionally, the transmission assembly 43 further includes a holder 435, and the power device 42, the worm wheel 433 and the worm 434 are disposed in the mounting cavity 410 of the mounting housing 41 through the holder 435.

Specifically, the holder 435 includes an upper frame 4351 and a lower frame 4352 connected together, and the power unit 42, the worm gear 433, and the worm 434 are installed between the upper frame 4351 and the lower frame 4352.

Further, a valve cover 30 is included, and the valve cover 30 is connected with the valve body 10 and used for limiting the valve core 20 in the valve body 10.

Specifically, referring to fig. 2 and 3, a coupling hole 301 is formed in the valve cover 30. The first valve section 11 can be connected to the piping of the irrigation system or other systems through the valve cover 30, and the first valve chamber 110 can be communicated with the piping of the irrigation system or other systems through the connecting hole 301.

The valve cover 30 includes a first connection section 31 and a second connection section 32. The first connecting section 31 is connected to the first valve section 11 and the second connecting section 32 is adapted to be connected to a pipe of an irrigation system or other system.

That is, in this embodiment, the pipeline connected to the connection hole 301 serves as an input end of the irrigation system, and the liquid enters the first valve cavity 110 through the connection hole 301, then enters the second valve cavity 120 and the third valve cavity 130 from two sides, and is delivered to various positions of the irrigation system for irrigation.

The first connecting section 31 is formed with external threads, the first valve chamber 110 of the first valve section 11 is formed with internal threads, and the valve cover 30 is in threaded connection with the first valve section 11.

Further, the valve described in this embodiment further includes a communication module, and the communication module is disposed on the control module 45 and is used for communication connection with the control terminal and the control module 45.

By providing the communication module on the control module 45, the present embodiment can remotely control the valve through the control terminal or the control module 45.

The embodiment of the invention also provides an irrigation system which is provided with the valve in any embodiment.

Further, the irrigation system also comprises a control terminal for controlling the working state of the valve. Through setting up control terminal, this embodiment can be long-rangely controlled the valve for the irrigation system that this embodiment provided is more intelligent.

It is understood that the control terminal may be, but is not limited to, a mobile phone, a tablet computer, a computer, etc.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, configuration, and operation in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to 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 do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would also fall within the scope of the present invention.

Claims (19)

1. A valve is characterized by comprising a valve body (10), wherein a valve cavity and a pressure measuring cavity are formed in the valve body (10), the valve cavity is used for conveying flowing media, the valve cavity is communicated with the pressure measuring cavity through a communicating structure so that the pressure of the valve cavity is the same as that of the pressure measuring cavity, the pressure measuring cavity is provided with a pressure sensor, and the communicating structure and the pressure sensor are arranged in a staggered mode so that media flowing into the pressure measuring cavity from the valve cavity cannot directly impact the pressure sensor.

2. The valve according to claim 1, wherein the valve body (10) comprises a plurality of valve segments, adjacent valve segments are fixedly connected through a thread structure, the valve cavity is formed inside the valve segments, and the pressure measuring cavity is formed on the connecting surface of the adjacent valve segments.

3. The valve according to claim 2, wherein a groove is provided on the connecting surface of at least one of the two adjacent valve segments, and the groove and the connecting surface of the corresponding valve segment together form the pressure measuring chamber, or the grooves on the two valve segments together form the pressure measuring chamber.

4. A valve according to claim 3, wherein the groove is an annular groove provided around the periphery of the valve section, the groove being provided with sealing rings on either side.

5. The valve according to claim 4, wherein the communicating structure is a communicating hole for communicating the valve chamber and the pressure measuring chamber, a sensor mounting hole (111) for mounting the pressure sensor is further arranged on the side wall of the pressure measuring chamber, and the communicating hole and the sensor mounting hole (111) are arranged in a staggered manner.

6. The valve of claim 5, further comprising a control module (45), wherein the pressure sensor is connected to the control module (45) at one end and mounted in the sensor mounting hole (111) at the other end.

7. The valve according to claim 6, wherein the valve body (10) comprises a first valve section (11), a second valve section (12) and a third valve section (13), the first valve section (11) forms a first valve cavity (110) therein, the second valve section (12) and the third valve section (13) are respectively connected to the first valve section (11) and form a second valve cavity (120) and a third valve cavity (130) together with the first valve section (11); the second valve cavity (120) and the third valve cavity (130) are provided with corresponding pressure measuring cavities, and the two pressure measuring cavities are provided with pressure sensors.

8. The valve according to claim 6, wherein the valve body (10) comprises a first valve section (11), a second valve section (12) and a third valve section (13), the first valve section (11) forms a first valve cavity (110) therein, the second valve section (12) and the third valve section (13) are respectively connected to the first valve section (11) and form a second valve cavity (120) and a third valve cavity (130) together with the first valve section (11); the pressure measuring cavity is arranged corresponding to the second valve cavity (120) or the third valve cavity (130), and is provided with a pressure sensor.

9. The valve according to claim 7, wherein a valve core (20) is arranged in the first valve cavity (110), the second valve cavity (120) and the third valve cavity (130) are respectively arranged at two sides of the first valve cavity (110), and the second valve cavity (120) and/or the third valve cavity (130) can be selectively controlled to be communicated with the first valve cavity (110) through the valve core (20).

10. The valve according to claim 9, wherein both ends of the first valve section (11) are respectively provided with an internal thread, the ends of the second valve section (12) and the third valve section (13) are respectively provided with an external thread, and the second valve section (12) and the third valve section (13) are respectively installed on the inner side of the first valve section (11) through a thread structure.

11. The valve of claim 10, further comprising an actuating device (40) disposed on a side of the valve body (10), wherein the actuating device (40) is in driving connection with the valve core (20) for driving the valve core (20) to move in the first valve chamber (110).

12. The valve according to claim 11, wherein the drive means (40) comprises a mounting housing (41), the control module (45) being provided in the mounting housing (41).

13. The valve according to claim 12, wherein a power device (42), a transmission assembly (43) and a fitting piece (44) are further arranged in the mounting housing (41), the fitting piece (44) is in transmission connection with the valve core (20), the transmission assembly (43) is in transmission connection with the fitting piece (44), and the power device (42) is in transmission connection with the transmission assembly (43).

14. The valve according to claim 13, wherein the transmission assembly (43) comprises a first gear (431) and a second gear (432) which are meshed with each other, and a worm wheel (433) and a worm (434) which are meshed with each other, the first gear (431) is in transmission connection with an output shaft of the power device (42), and the second gear (432) is fixedly connected with the worm (434).

15. The valve according to claim 14, wherein the transmission assembly (43) further comprises a cage (435), the power device (42), the worm gear (433) and the worm (434) being disposed in the mounting housing (41) through the cage (435).

16. The valve of claim 9, further comprising a bonnet (30), the bonnet (30) coupled to the valve body (10) for confining the valve cartridge (20) within the valve body (10).

17. The valve of claim 9, further comprising a communication module disposed on the control module (45) and configured to communicatively connect a control terminal and the control module (45).

18. An irrigation system, characterized by a valve according to any of claims 1-17.

19. The irrigation system as recited in claim 18, further comprising a control terminal for controlling an operating state of the valve.

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