Water-saving irrigation device for high-standard farmland construction

Abstract

The invention discloses a water-saving irrigation device for high-standard farmland construction, and belongs to the technical field of farmland irrigation, the water-saving irrigation device comprises two semi-cylindrical shells which can be assembled together in a sealing manner, and two slow flow structures which can be opened and closed are symmetrically arranged on one side, close to inner cavities of the semi-cylindrical shells, in a space defined by two slow flow channels. According to the irrigation device, in the process of conveying water to the roots of crops, the water pressure in the guiding and conveying pipe can be monitored through the pressure sensing device, and when a slow flow channel serving as a drip irrigation flow channel in the device is blocked and water conveying to the roots of the crops is blocked, the water pressure can be monitored; the water pressure in the guiding and conveying pipe is increased to drive a plug body assembly in the pressure sensing device to move towards the indicating assembly, a flow slowing structure located in the flow slowing channel is gradually converted into a closed state from an initial open state, and therefore the flow speed of water flow in the flow slowing channel is increased, impurities accumulated in the channel can be washed out more easily, and the service life of the channel is prolonged. And the blockage degree is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland irrigation, and more particularly to a water-saving irrigation device for high-standard farmland construction. Background Art

[0002] High-standard farmland refers to arable land that is flat, concentrated and contiguous, has complete facilities, supporting farmland, fertile soil, good ecology, strong disaster resistance, and is suitable for modern agricultural production and management methods, with stable yields in drought and flood, and has been designated as permanent basic farmland.

[0003] The root drip irrigation device of crops can transport water directly to the roots of crops to achieve precise irrigation. It can ensure that water directly acts on the roots of plants, reduce water evaporation and loss, ensure that crops obtain sufficient water and nutrient supply, reduce water resource waste, enhance the disaster resistance of farmland, provide strong guarantee for the stable growth and high yield of crops, and meet the needs of high-standard farmland supporting facilities.

[0004] However, since the root drip irrigation device is buried underground, it is difficult to directly observe the status of the water outlet of the root drip irrigation device. When the narrow drip irrigation channel in the drip irrigation device is blocked by impurities such as suspended matter and fine particles in the water quality and causes the water output of the water outlet of the drip irrigation device to decrease, due to the concealed nature of the installation location of the device, the device is often not easy to be discovered in time after the blockage occurs. In this way, during the long-term drip irrigation process, crops in different areas of the farmland receive different amounts of irrigation water. Crops in water-deficient areas are prone to problems such as leaf wilting, fruit shrinkage, and yield reduction, which affects the normal growth and development of crops, resulting in a decrease in farmland yield, which is not conducive to the construction of high-standard farmland.

[0005] In view of this, we propose a water-saving irrigation device for high-standard farmland construction. Summary of the invention

[0006] Technical problem to be solved: The purpose of the present invention is to provide a water-saving irrigation device for high-standard farmland construction to solve the technical problems raised in the above-mentioned background technology.

[0007] Technical solution: The technical solution of the present invention provides a water-saving irrigation device for high-standard farmland construction, comprising two semi-cylinder shells that can be sealed and assembled together, each semi-cylinder shell is provided with a slow flow channel connected to the inner cavity of the semi-cylinder shell, and two slow flow structures that can be opened and closed are symmetrically provided on one side close to the inner cavity of the semi-cylinder shell in the space surrounded by the two slow flow channels; The tops of the two half-cylinder shells are sealed and covered together with a cylinder cover, and a guide tube is sealed and rotatably connected to the cylinder cover. The guide tube is provided with a pressure sensing device, which includes an insulating cylinder seat connected to the side wall of the guide tube, and an upper reserved hole and a lower reserved hole are respectively provided at the top and bottom ends of the insulating cylinder seat. A plug body assembly is provided in the lower reserved hole, and two air bleed hoses are provided on the plug body assembly, and the plug body assembly is respectively connected to the two slow flow structures through the two air bleed hoses; A schematic component cooperating with the plug assembly is provided at the top of the insulating cylinder seat, and when the plug assembly moves toward the schematic component, the plug assembly draws the fluid inside the slow-flow structure through the air bleed hose, and causes the slow-flow structure to gradually change from an initial open state to a closed state.

[0008] As an optional solution of the technical solution of the document of the present invention, the bottoms of the two half-cylinder shells are commonly connected with a bottom filter cartridge; A plurality of filter holes are evenly arranged at the bottom of the bottom filter cartridge.

[0009] As an optional solution of the technical solution of the document of the present invention, the slow flow channel includes a semi-narrow flow channel, a semi-accommodating groove and a semi-thin discharge port arranged inside the semi-cylinder shell; The semi-accommodating groove is connected to the semi-narrow flow channel; One end of the semi-narrow discharge port penetrates the bottom of the semi-cylinder shell, and the other end is connected to the semi-narrow flow channel; One end of the semi-narrow flow channel away from the semi-thin discharge port is communicated with the inner cavity of the semi-cylinder shell, and the semi-accommodating groove is arranged at a position of the semi-narrow flow channel close to the inner cavity of the semi-cylinder shell.

[0010] As an optional solution of the technical solution of the document of the present invention, the plug body assembly includes a cooperative cylinder shell connected to the interior of the lower reserved hole through a bracket; A driven plug body is sealed and slidably mounted in the cooperative cylinder shell, and an insulating synchronous rod is connected to the driven plug body. The top end of the insulating synchronous rod is inserted into the upper reserved hole and connected to a dynamic switch spring. The outer periphery of the insulating synchronous rod is sleeved with an annular active plug body which is sealed and slides in the lower reserved hole; A return spring is disposed on the outer sleeve of the annular active plug body, and one end of the return spring is connected to the end of the lower reserved hole, and the other end is connected to the annular active plug body; The bottom end of the cooperative cylinder shell is connected with a fluid through-tube, and one end of the fluid through-tube away from the cooperative cylinder shell passes through the side wall of the insulating cylinder seat and extends out from the side wall of the insulating cylinder seat.

[0011] As an optional solution of the technical solution of the document of the present invention, the schematic assembly includes an insulating end seat sealed and connected to the end of the insulating cylinder seat, and the insulating end seat covers the opening of the upper reserved hole; The insulating terminal seat is connected with a warning light, the warning light is connected with a static switch terminal, and the end of the static switch terminal away from the warning light passes through the insulating terminal seat and extends into the upper reserved hole and is arranged opposite to the dynamic switch spring piece.

[0012] As an optional solution of the technical solution of the document of the present invention, the dynamic switch spring and the static switch terminal are both electrically connected to the warning light, and when the dynamic switch spring moves toward the static switch terminal and contacts the static switch terminal, the warning light is triggered to turn on.

[0013] As an optional solution of the technical solution of the document of the present invention, the slow flow structure includes a plurality of flow-blocking flaps which are elastically rotatably connected to any half of the accommodating grooves through a torsion spring and arranged along the flow direction of the semi-narrow flow channel, and an elastic diaphragm is provided on the side of each flow-blocking flap; The slow-flow structure also includes a convergence chamber and a communicating cavity whose number is equal to that of the elastic diaphragms.

[0014] As an optional solution of the technical solution of the document of the present invention, a communication cavity is arranged on the side wall of the semi-accommodation groove, and a communication cavity is arranged at a position corresponding to the position of each elastic diaphragm on the side wall of the semi-accommodation groove, and each elastic diaphragm is respectively connected to the corresponding communication cavity; The convergence chamber is located inside the semi-cylindrical shell, and the multiple communication cavities in the slow flow structure are all connected to the convergence chamber.

[0015] As an optional solution of the technical solution of the document of the present invention, the elastic diaphragm is initially in an expanded state and is tightly attached to the surface of the flow-blocking flap, so that the flow-blocking flap is opened and presents an open state.

[0016] As an optional solution of the technical solution of the document of the present invention, one end of the two air bleed hoses is connected to the side wall of the half-cylinder shell installed with the slow flow structure, and the two air bleed hoses are respectively connected to the two convergence chambers in the half-cylinder shell; The other ends of the two air bleed hoses are fixedly connected to one end of the fluid through pipe extending from the side wall of the insulating cylinder seat.

[0017] Beneficial effects: One or more technical solutions provided in the technical solution of the present invention have at least the following technical effects or advantages: 1. In the process of transporting water to the roots of crops, the irrigation device can monitor the water pressure in the conveying pipe through the pressure sensing device. When the slow flow channel serving as the drip irrigation channel in the device is blocked and the water transport to the roots of crops is blocked, the increase in water pressure in the conveying pipe drives the plug assembly in the pressure sensing device to move toward the direction of the schematic assembly, and causes the slow flow structure located in the slow flow channel to gradually change from an initial open state to a closed state, thereby accelerating the flow rate of water in the slow flow channel. This not only makes it easier to flush out the impurities accumulated in the channel, which is beneficial to reducing the degree of blockage, but also increases the speed of water flowing to the roots of crops when the slow flow channel is blocked, thereby improving irrigation efficiency and effectively reducing the impact of the blockage of the irrigation device on the normal growth of crops, thereby effectively alleviating the uneven irrigation of farmland, promoting the balanced growth of crops in farmland, and improving the yield and quality of farmland, thereby contributing to the construction of high-standard farmland.

[0018] 2. After the irrigation water source flows into the slow-flow channel, the water flow speed is slowed down through the narrow semi-narrow flow channel. Since the elastic diaphragm in the slow-flow structure is initially in an expanded state and tightly attached to the surface of the baffle flap, the baffle flap is opened and in an open state. The two slow-flow structures are symmetrically arranged and both in an open state, so that the cross-sectional area through which the water flows is reduced accordingly, further slowing down the flow rate of the water in the semi-narrow flow channel, which is conducive to more precise control of the irrigation amount to the roots of crops.

[0019] 3. When the slow flow channel in the device, which serves as a drip irrigation channel, is blocked and the water delivery to the roots of crops is blocked, the water pressure inside the conveying pipe gradually increases and drives the driven plug in the plug assembly to move through the annular active plug. The moving driven plug draws out the gas inside the two converging chambers through two air bleed hoses connected to the fluid through-tube, so that the elastic diaphragm that originally elastically expanded gradually shrinks in volume. In this process, the flow-blocking swing piece in the slow flow structure gradually changes from an initial open state to a closed state, so that the cross-sectional area through which water flows increases accordingly, and the water flow velocity in the slow flow channel is accelerated. This not only makes it easier to flush out the impurities accumulated in the channel and reduce the degree of blockage, but also increases the speed of water flowing to the roots of crops when the slow flow channel is blocked, thereby improving irrigation efficiency.

[0020] 4. When blockage occurs in the slow-flow channel and triggers the slow-flow structure to gradually change from the initial open state to the closed state, the blockage in the slow-flow channel is further aggravated and the water pressure inside the conveying pipe is further increased. In the process of further moving the driven plug in the plug assembly driven by the annular active plug, the dynamic switch spring gradually approaches the static switch terminal. When the water pressure is greater than the preset value, the annular active plug driven by the water pressure further squeezes the reset spring, and makes the dynamic switch spring contact with the static switch terminal, and triggers the warning light in the indicator assembly to turn on, reminding the staff to clean up the severely blocked irrigation device in time to ensure that the farmland can be evenly irrigated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram of part A.

[0023] Figure 3 It is a bottom view of the overall structure of the present invention.

[0024] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of part B.

[0025] Figure 5 It is a top view of the overall structure of the present invention.

[0026] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of part C in the middle.

[0027] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of part D in the middle.

[0028] Figure 8 It is a cross-sectional view of the overall structure of the present invention.

[0029] Fig. 9 For the present invention Figure 8 A partial enlarged schematic diagram of part E in the middle.

[0030] Fig.10 It is a structural schematic diagram of the semi-cylinder shell in the present invention.

[0031] Fig.11 For the present invention Fig.10 A partial enlarged schematic diagram of part F in the middle.

[0032] Description of the numbers in the figure: 101. Semi-cylinder shell; 103. Cylinder cover; 104. Warning light; 106. Air bleed hose; 107. Bottom filter cartridge; 108. Conduit; 110. Insulating cylinder seat; 113. Semi-fine outlet; 115. Fluid passage; 118. Semi-narrow flow channel; 119. Insulating synchronization rod; 120. Annular active plug body; 121. Driven plug body; 122. Cooperative cylinder shell; 123. Dynamic switch spring; 124. Static switch terminal; 125. Flow-blocking pendulum; 126. Elastic diaphragm; 127. Insulating end seat. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1, reference Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 8 , Fig.10The embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, comprising two semi-cylinder shells 101 that can be sealed and assembled together, each semi-cylinder shell 101 is provided with a slow flow channel connected to the inner cavity of the semi-cylinder shell 101, and two slow flow structures that can be opened and closed are symmetrically provided on one side close to the inner cavity of the semi-cylinder shell 101 in the space surrounded by the two slow flow channels; The tops of the two half-cylinder shells 101 are sealed and covered with a cylinder cover 103, and a guide tube 108 is sealed and rotatably connected to the cylinder cover 103. The guide tube 108 is provided with a pressure sensing device, which includes an insulating cylinder seat 110 connected to the side wall of the guide tube 108. The insulating cylinder seat 110 is provided with an upper reserved hole and a lower reserved hole at both ends of the top and bottom, respectively. A plug body assembly is provided in the lower reserved hole, and two air bleed hoses 106 are provided on the plug body assembly, and the plug body assembly is respectively connected to the two slow flow structures through the two air bleed hoses 106; A schematic component that cooperates with the plug body assembly is provided at the top of the insulating cylinder seat 110, and when the plug body assembly moves toward the direction of the schematic component, the plug body assembly draws the fluid inside the slow flow structure through the air bleed hose 106, and causes the slow flow structure to gradually change from an initial open state to a closed state, wherein the plug body assembly, the air bleed hose 106 and the slow flow structure are all filled with fluid, and the plug body assembly draws the fluid in the slow flow structure or injects fluid into the slow flow structure through the air bleed hose 106, and the fluid here is preferably air.

[0037] In the process of transporting water to the roots of crops, the irrigation device can monitor the water pressure in the conveying pipe 108 through the pressure sensing device. When the slow flow channel serving as the drip irrigation channel in the device is blocked and the water transport to the roots of crops is blocked, the increase in water pressure in the conveying pipe 108 drives the plug assembly in the pressure sensing device to move toward the direction of the schematic assembly, and causes the slow flow structure located in the slow flow channel to gradually change from an initial open state to a closed state, thereby accelerating the flow rate of water in the slow flow channel. This not only makes it easier to flush out the impurities accumulated in the channel, which helps to reduce the degree of blockage, but also increases the speed of water flowing to the roots of crops when the slow flow channel is blocked, thereby improving irrigation efficiency and effectively reducing the impact of the blockage of the irrigation device on the normal growth of crops, thereby effectively alleviating the uneven irrigation of farmland, promoting the balanced growth of crops in farmland, and improving the yield and quality of farmland, thereby contributing to the construction of high-standard farmland.

[0038] Reference Figure 3 , Figure 4 , Figure 8 , Fig.10 and Fig.11, the embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, the slow flow channel includes a semi-narrow flow channel 118, a semi-accommodating groove and a semi-thin discharge port 113 arranged inside the semi-cylinder shell 101, and the semi-narrow flow channel 118 is arranged in an "S" shape; The semi-accommodating groove is connected to the semi-narrow flow channel 118; One end of the semi-narrow discharge port 113 passes through the bottom of the semi-cylindrical shell 101, and the other end is connected to the semi-narrow flow channel 118; One end of the semi-narrow channel 118 away from the semi-narrow outlet 113 is communicated with the inner cavity of the semi-cylinder shell 101 , and the semi-accommodating groove is arranged at a position of the semi-narrow channel 118 close to the inner cavity of the semi-cylinder shell 101 .

[0039] When the two half-cylinder shells 101 are sealed and assembled together, the two semi-narrow flow channels 118 are aligned to form a complete narrow flow channel. Similarly, the semi-fine discharge openings 113 on the two half-cylinder shells 101 are aligned to form a complete fine discharge opening.

[0040] Reference Figure 8 and Fig. 9 , the embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, the plug body assembly includes a cooperative cylinder shell 122 connected to the inside of the lower reserved hole through a bracket; A driven plug body 121 is sealed and slidably mounted in the cooperative cylinder shell 122. An insulating synchronous rod 119 is connected to the driven plug body 121. The top end of the insulating synchronous rod 119 is inserted into the upper reserved hole and connected to a dynamic switch spring 123. The outer periphery of the insulating synchronous rod 119 is sleeved with an annular active plug body 120 which is sealed and slides in the lower reserved hole; The annular active plug body 120 is provided with a return spring on its outer sleeve, and one end of the return spring is connected to the end of the lower reserved hole, and the other end is connected to the annular active plug body 120; The bottom end of the cooperative shell 122 is connected to a fluid passage 115 , and one end of the fluid passage 115 away from the cooperative shell 122 passes through the side wall of the insulating cartridge seat 110 and extends out from the side wall of the insulating cartridge seat 110 .

[0041] Reference Figure 6 , Figure 7 , Fig.10 and Fig.11 The embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, wherein the slow-flow structure includes a plurality of flow-blocking flaps 125 elastically rotatably connected to any half of the accommodating groove through a torsion spring and arranged along the flow direction of the semi-narrow flow channel 118, and an elastic diaphragm 126 is provided on the side of each flow-blocking flap 125; The slow flow structure also includes a convergence chamber and a number of communication channels equal to the number of elastic diaphragms 126; The communication cavity is arranged on the side wall of the semi-accommodation groove, and a communication cavity is arranged at the position corresponding to each elastic diaphragm 126 on the side wall of the semi-accommodation groove, and each elastic diaphragm 126 is respectively connected to the corresponding communication cavity; The convergence chamber is located inside the semi-cylindrical shell 101, and the multiple communication channels in the slow flow structure are all connected to the convergence chamber; The elastic diaphragm 126 is initially in an expanded state and is closely attached to the surface of the flow-blocking flap 125, so that the flow-blocking flap 125 is opened and presents an open state; One end of the two air bleed hoses 106 is connected to the side wall of the half-cylinder shell 101 on which the slow flow structure is installed, and the two air bleed hoses 106 are respectively connected to the two convergence chambers in the half-cylinder shell 101; The other ends of the two air bleed hoses 106 are fixedly connected to one end of the fluid passage 115 extending from the side wall of the insulating cylinder seat 110 .

[0042] The irrigation water source is gradually injected into the space surrounded by the inner cavities of the two half-cylinder shells 101 through the conduit 108. Due to the slow flow effect of the slow flow channel and the slow flow structure, the speed of the water source flowing out through the slow flow channel is lower than the speed of the water source flowing into the space surrounded by the inner cavities of the two half-cylinder shells 101, so that the water source gradually fills the space surrounded by the two half-cylinder shells 101 and the conduit 108. When there is no blockage in the slow-flow channel, under the action of the elastic force of the return spring, the driven plug body 121 squeezes the gas through the two air bleed hoses 106 and injects it into the two convergence chambers. Then, the air pressure in the connecting channel connected to the convergence chamber increases and drives the elastic diaphragm 126 to expand elastically. The elastically expanded elastic diaphragm 126 drives the flow-blocking swing plate 125 to change from a closed state to an open state. After the irrigation water flows into the slow-flow channel, the water flow speed is slowed down by the narrow semi-narrow flow channel 118. Since the elastic diaphragm 126 in the slow-flow structure is initially in an expanded state and tightly attached to the surface of the baffle flap 125, the baffle flap 125 is opened and in an open state. The two slow-flow structures are symmetrically arranged and both in an open state, so that the cross-sectional area through which the water flows is reduced accordingly, further slowing down the flow rate of the water in the semi-narrow flow channel 118, which is conducive to more precise control of the irrigation amount for the roots of crops.

[0043] When the slow flow channel in the device, which serves as a drip irrigation channel, is blocked and the water delivery to the roots of crops is blocked, the water pressure inside the conveying pipe 108 gradually increases and drives the driven plug 121 in the plug assembly to move through the annular active plug 120. The moving driven plug 121 draws out the gas inside the two converging chambers respectively through the two air duct hoses 106 connected to the fluid passage 115, so that the elastic diaphragm 126 that originally elastically expanded gradually reduces in volume. In this process, the flow-blocking pendulum 125 in the slow flow structure gradually changes from an initial open state to a closed state, so that the cross-sectional area through which water flows increases accordingly, and the water flow rate in the slow flow channel is accelerated. This not only makes it easier to flush out the impurities accumulated in the channel and reduce the degree of blockage, but also increases the speed of water flowing to the roots of crops when the slow flow channel is blocked, thereby improving irrigation efficiency.

[0044] Reference Figure 8 and Fig. 9 , the embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, the schematic assembly includes an insulating end seat 127 sealed and connected to the end of the insulating cylinder seat 110, and the insulating end seat 127 covers the opening of the upper reserved hole; The insulating terminal 127 is connected to the warning light 104, and the warning light 104 is connected to the static switch terminal 124. The end of the static switch terminal 124 away from the warning light 104 passes through the insulating terminal 127 and extends into the upper reserved hole and is arranged opposite to the dynamic switch spring 123. The dynamic switch spring 123 and the static switch terminal 124 are both electrically connected to the warning light 104 , and when the dynamic switch spring 123 moves toward the static switch terminal 124 and contacts the static switch terminal 124 , the warning light 104 is triggered to turn on.

[0045] When blockage occurs in the slow-flow channel and triggers the slow-flow structure to gradually change from the initial open state to the closed state, the blockage in the slow-flow channel is further aggravated and causes the water pressure inside the guide pipe 108 to further increase. In the process of further moving the driven plug 121 in the plug assembly driven by the annular active plug 120, the dynamic switch spring 123 gradually approaches the static switch terminal 124. When the water pressure is greater than the preset value, the annular active plug 120 driven by the water pressure further squeezes the return spring, and makes the dynamic switch spring 123 contact with the static switch terminal 124, and triggers the warning light 104 in the indicator assembly to turn on, reminding the staff to clean up the severely blocked irrigation device in time to ensure that the farmland can be evenly irrigated.

[0046] When cleaning the slow-flow channel, the two half-cylinder shells 101 that were originally assembled together are disassembled, so that it is convenient for people to clean the blocked slow-flow channel.

[0047] Embodiment 2, this embodiment is different from embodiment 1 in that: Figure 1 , Figure 3 and Figure 5 The embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, wherein the bottoms of the two half-cylinder shells 101 are commonly connected with a bottom filter cartridge 107, wherein the bottom filter cartridge 107 is detachably mounted and fixed to the bottoms of the two assembled half-cylinder shells 101 by means of threaded connection or snap connection; A plurality of filter holes are evenly formed at the bottom of the bottom filter cartridge 107 .

[0048] The bottom filter cartridge 107 installed at the bottom of the two half-cylinder shells 101 can effectively prevent soil particles from directly invading the interior of the outlet of the semi-fine discharge port 113 and causing blockage of the slow flow channel.

[0049] It should be noted that, in this document, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The electrical components appearing in this document are all electrically connected to the 220V mains. Contents not described in detail in this specification belong to the prior art known to professionals in the field.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water-saving irrigation device for high-standard farmland construction, characterized by: It comprises two semi-cylinder shells (101) which can be assembled together in a sealable manner, each semi-cylinder shell (101) is provided with a slow flow channel in communication with the inner cavity of the semi-cylinder shell (101), and two slow flow structures capable of opening and closing are symmetrically provided on one side close to the inner cavity of the semi-cylinder shell (101) in the space surrounded by the two slow flow channels; The tops of the two half-cylinder shells (101) are sealed and covered with a cylinder cover (103), a guide tube (108) is sealed and rotatably connected to the cylinder cover (103), a pressure sensing device is provided on the guide tube (108), the pressure sensing device comprises an insulating cylinder seat (110) connected to the side wall of the guide tube (108), an upper reserved hole and a lower reserved hole are respectively provided at the top and bottom ends of the insulating cylinder seat (110), a plug assembly is provided in the lower reserved hole, two air bleed hoses (106) are provided on the plug assembly, and the plug assembly is respectively connected to the two slow flow structures through the two air bleed hoses (106); A schematic component cooperating with the plug component is provided at the top end of the insulating cylinder seat (110), and when the plug component moves in the direction of the schematic component, the plug component draws fluid inside the slow-flow structure through the air bleed hose (106), causing the slow-flow structure to gradually change from an initial open state to a closed state.

2. A water-saving irrigation device for high-standard farmland construction according to claim 1, characterized in that: The slow-flow channel comprises a semi-narrow flow channel (118), a semi-accommodating groove and a semi-narrow discharge port (113) arranged inside the semi-cylinder shell (101); The semi-accommodating groove is in communication with the semi-narrow flow channel (118); One end of the semi-narrow discharge port (113) passes through the bottom of the semi-cylinder shell (101), and the other end is connected to the semi-narrow flow channel (118); One end of the semi-narrow flow channel (118) away from the semi-narrow discharge port (113) is in communication with the inner cavity of the semi-cylinder shell (101), and the semi-accommodating groove is arranged at a position of the semi-narrow flow channel (118) close to the inner cavity of the semi-cylinder shell (101).

3. A water-saving irrigation device for high-standard farmland construction according to claim 2, characterized in that: The plug body assembly comprises a cooperative cylindrical shell (122) connected to the interior of the lower reserved hole via a bracket; A driven plug body (121) is sealed and slidably mounted in the upper and lower parts of the cooperative cylinder shell (122); an insulating synchronous rod (119) is connected to the driven plug body (121); the top end of the insulating synchronous rod (119) is inserted into the upper reserved hole and is connected to a dynamic switch spring (123); The outer circumference of the insulating synchronous rod (119) is sleeved with an annular active plug body (120) which is sealed and slides in the lower reserved hole. A return spring is disposed on the outer sleeve of the annular active plug body (120), and one end of the return spring is connected to the end of the lower reserved hole, and the other end is connected to the annular active plug body (120); The bottom end of the cooperative cylindrical shell (122) is connected to a fluid through tube (115), and one end of the fluid through tube (115) away from the cooperative cylindrical shell (122) passes through the side wall of the insulating cylindrical seat (110) and extends out from the side wall of the insulating cylindrical seat (110).

4. A water-saving irrigation device for high-standard farmland construction according to claim 3, characterized in that: The schematic assembly comprises an insulating end seat (127) which is sealed and connected to the end of the insulating cylinder seat (110), and the insulating end seat (127) covers the opening of the upper reserved hole; The insulating end seat (127) is connected to a warning light (104), the warning light (104) is connected to a static switch terminal (124), and one end of the static switch terminal (124) away from the warning light (104) passes through the insulating end seat (127) and extends into the upper reserved hole and is arranged opposite to the dynamic switch spring (123).

5. A water-saving irrigation device for high-standard farmland construction according to claim 4, characterized in that: The dynamic switch spring (123) and the static switch terminal (124) are both electrically connected to the warning light (104), and when the dynamic switch spring (123) moves towards the static switch terminal (124) and contacts the static switch terminal (124), the warning light (104) is triggered to turn on.

6. A water-saving irrigation device for high-standard farmland construction according to claim 3, characterized in that: The slow-flow structure comprises a plurality of flow-blocking flaps (125) which are elastically rotatably connected to any of the semi-accommodating grooves via a torsion spring and are arranged along the flow direction of the semi-narrow flow channel (118), and an elastic diaphragm (126) is provided on the side of each flow-blocking flap (125); The slow flow structure also includes a convergence chamber and a number of communication channels equal to the number of elastic diaphragms (126).

7. A water-saving irrigation device for high-standard farmland construction according to claim 6, characterized in that: The communication cavity is arranged on the side wall of the semi-accommodation groove, and a communication cavity is provided at a position of the side wall of the semi-accommodation groove corresponding to the position of each elastic diaphragm (126), and each elastic diaphragm (126) is respectively connected to the corresponding communication cavity; The convergence chamber is located inside the semi-cylindrical shell (101), and the plurality of communication cavities in the slow flow structure are all connected to the convergence chamber.

8. A water-saving irrigation device for high-standard farmland construction according to claim 7, characterized in that: The elastic diaphragm (126) is initially in an expanded state and is closely attached to the surface of the flow-blocking flap (125), so that the flow-blocking flap (125) is opened and presents an open state.

9. A water-saving irrigation device for high-standard farmland construction according to claim 6, characterized in that: One end of the two air bleed hoses (106) is connected to the side wall of the half-cylinder shell (101) on which the slow-flow structure is installed, and the two air bleed hoses (106) are respectively connected to the two convergence chambers in the half-cylinder shell (101); The other ends of the two air bleed hoses (106) are fixedly connected to one end of the fluid passage tube (115) extending from the side wall of the insulating cylinder seat (110).

10. The water-saving irrigation device for high-standard farmland construction according to claim 1, characterized in that: The bottoms of the two half-cylinder shells (101) are commonly connected to a bottom filter cartridge (107); The bottom of the bottom filter cartridge (107) is evenly provided with a plurality of filter holes.

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