A water-saving irrigation device for the construction of high-standard farmland

Abstract

The present invention discloses a water-saving irrigation device for high-standard farmland construction, belonging to the technical field of farmland irrigation. It includes two semi-cylindrical shells that can be hermetically assembled together. Inside the space surrounded by two slow-flow channels, two slow-flow structures that can be opened and closed are symmetrically arranged on one side close to the inner cavity of the semi-cylindrical shell. During the process of delivering water to the roots of crops, this irrigation device can monitor the water pressure in the delivery pipe through a pressure sensor component. When the slow-flow channel serving as the drip irrigation channel in the device is blocked and the water delivery to the roots of crops is hindered, the increase in the water pressure in the delivery pipe drives the plug body component in the pressure sensor component to move towards the indicating component, and the slow-flow structure located in the slow-flow channel gradually changes from the initial open state to the closed state, so that the water flow velocity in the slow-flow channel is accelerated. This not only makes it easier for the accumulated impurities in the channel to be washed out, but also helps to reduce the degree of blockage.

Description

Technical Field

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

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

[0003] The drip irrigation device for crop roots can directly deliver water to the roots of crops, realizing 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 while reducing water resource waste, enhance the disaster resistance of farmland, provide a strong guarantee for the stable growth and high yield of crops, and meet the requirements of supporting facilities for high-standard farmland.

[0004] However, since the drip irrigation device for roots is buried underground, it is difficult to directly observe the state of the water outlet part of the drip irrigation device. When the narrow drip irrigation flow channel in the drip irrigation device is blocked by impurities such as suspended solids and fine particles in the water quality, resulting in a decrease in the water output of the water outlet part of the drip irrigation device, due to the concealment of the installation position of the device, the device is often not easily discovered in time after the blockage occurs. In this way, during a long-term drip irrigation process, the irrigation water amounts obtained by crops in different areas of the farmland are different, and the crops in the water-deficient areas are prone to problems such as wilting leaves, smaller fruits, and decreased yields, affecting the normal growth and development of crops, resulting in a decrease in farmland yields, and being unfavorable for the construction of high-standard farmland.

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

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

[0007] Technical solution: The technical solution of the present invention provides a water-saving irrigation device for the construction of high-standard farmland, including two semi-cylindrical shells that can be hermetically assembled together. A slow-flow channel communicating with the inner cavity of each semi-cylindrical shell is provided inside each semi-cylindrical 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-cylindrical shell within the space surrounded by the two slow-flow channels;

[0008] The tops of the two semi-cylindrical shells are jointly and sealingly covered and connected with a cylinder cover. A guide and conveying pipe is sealingly and rotatably connected to the cylinder cover. A pressure sensor device is arranged on the guide and conveying pipe. The pressure sensor device includes an insulating cylinder base connected to the side wall of the guide and conveying pipe. Upper and lower reserved holes are respectively arranged at the top and bottom ends of the insulating cylinder base. A plug body assembly is arranged in the lower reserved hole. Two air guiding hoses are arranged on the plug body assembly. And the plug body assembly is respectively communicated with two slow-flow structures through the two air guiding hoses;

[0009] A schematic assembly that cooperates with the plug body assembly is arranged at the top end of the insulating cylinder base. And when the plug body assembly moves towards the schematic assembly, the plug body assembly sucks the internal fluid of the slow-flow structure through the air guiding hose and makes the slow-flow structure gradually change from the initial open state to the closed state.

[0010] As an alternative scheme of the technical solution of this invention document, the bottoms of the two semi-cylindrical shells are jointly connected with a bottom filter cylinder;

[0011] A plurality of filter holes are uniformly arranged at the bottom of the bottom filter cylinder.

[0012] As an alternative scheme of the technical solution of this invention document, the slow-flow channel includes a semi-narrow flow channel, a semi-accommodating groove and a semi-fine discharge port arranged inside the semi-cylindrical shell;

[0013] The semi-accommodating groove is communicated with the semi-narrow flow channel;

[0014] One end of the semi-fine discharge port penetrates through the bottom of the semi-cylindrical shell, and the other end is communicated with the semi-narrow flow channel;

[0015] The end of the semi-narrow flow channel far from the semi-fine discharge port is communicated with the inner cavity of the semi-cylindrical 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-cylindrical shell.

[0016] As an alternative scheme of the technical solution of this invention document, the plug body assembly includes a cooperative cylinder shell connected to the inside of the lower reserved hole through a bracket;

[0017] A driven plug body is hermetically and slidably arranged up and down in the cooperative cylinder shell. An insulating synchronous rod is connected to the driven plug body. The top end of the insulating synchronous rod penetrates into the upper reserved hole and is connected with a dynamic switch elastic sheet;

[0018] An annular active plug body that is hermetically and slidably arranged up and down in the lower reserved hole is sleeved on the outer periphery of the insulating synchronous rod;

[0019] A return spring is sleeved outside the annular active plug body. 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;

[0020] A fluid through pipe is connected to the bottom end of the cooperative cylinder shell. And the end of the fluid through pipe far from the cooperative cylinder shell penetrates through the side wall of the insulating cylinder base and extends out from the side wall of the insulating cylinder base.

[0021] As an alternative embodiment of the technical solution of the present invention document, the indicating component includes an insulating end seat hermetically connected to the end of the insulating cylinder seat, and the insulating end seat covers the opening of the upper reserved hole;

[0022] An indicating lamp is connected to the insulating end seat, a static switch terminal is connected to the indicating lamp, and the end of the static switch terminal away from the indicating lamp passes through the insulating end seat and extends into the upper reserved hole and is disposed opposite to the dynamic switch elastic piece.

[0023] As an alternative embodiment of the technical solution of the present invention document, both the dynamic switch elastic piece and the static switch terminal are electrically connected to the indicating lamp, and when the dynamic switch elastic piece moves towards the static switch terminal and contacts the static switch terminal, the indicating lamp is triggered to turn on.

[0024] As an alternative embodiment of the technical solution of the present invention document, the flow buffering structure includes a plurality of flow blocking swing pieces elastically rotatably connected to any one of the half accommodating grooves by torsion springs and arranged along the direction of the half narrow flow channel, and an elastic diaphragm is provided on the side of each flow blocking swing piece;

[0025] The flow buffering structure further includes a converging chamber and communication channels equal in number to the elastic diaphragms.

[0026] As an alternative embodiment of the technical solution of the present invention document, the communication channels are provided on the side wall of the half accommodating groove, and a communication channel is provided at the position corresponding to each elastic diaphragm on the side wall of the half accommodating groove, and each elastic diaphragm is respectively connected to the corresponding communication channel;

[0027] The converging chamber is located inside the half cylinder housing, and a plurality of communication channels in the flow buffering structure are all connected to the converging chamber.

[0028] As an alternative embodiment of the technical solution of the present invention document, the elastic diaphragm is in an expanded state and tightly adheres to the surface of the flow blocking swing piece in the initial state, so that the flow blocking swing piece opens and presents an open state.

[0029] As an alternative embodiment of the technical solution of the present invention document, one ends of two air guiding hoses are both connected to the side wall of the half cylinder housing where the flow buffering structure is installed, and the two air guiding hoses are respectively connected to two converging chambers in the half cylinder housing;

[0030] The other ends of the two air guiding hoses are both fixedly connected to one end of the fluid through pipe extending out of the side wall of the insulating cylinder seat.

[0031] 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. During the process of delivering water to the roots of crops, this irrigation device can monitor the water pressure in the delivery pipe through a pressure sensor. When the slow-flow channel, which serves as the drip irrigation channel in the device, becomes blocked and the water delivery to the roots of the crops is hindered, the increase in the water pressure in the delivery pipe drives the plug body assembly in the pressure sensor towards the indicating assembly, and the slow-flow structure in the slow-flow channel gradually changes from the initial open state to the closed state, thereby accelerating the water flow velocity in the slow-flow channel. This not only makes it easier for the accumulated impurities in the channel to be washed out, reducing the degree of blockage, but also increases the speed of the water flow towards the roots of the crops when the slow-flow channel is blocked, improving the irrigation efficiency, effectively reducing the impact on the normal growth of crops caused by the blockage of the irrigation device, thus effectively alleviating the uneven farmland irrigation situation, promoting the balanced growth of crops in the farmland, increasing the yield and quality of the farmland, and thus contributing to the construction of high-standard farmland.

[0032] 2. After the irrigation water source flows into the slow-flow channel, the water flow velocity is slowed down through the narrow semi-narrow flow channel. Since the elastic diaphragm in the slow-flow structure is in the expanded state and closely adheres to the surface of the flow-blocking swing piece in the initial state, the flow-blocking swing piece opens and presents an open state. The two slow-flow structures that are symmetrically arranged and both in the open state thus reduce the cross-sectional area through which the water flow passes, further slowing down the water flow velocity in the semi-narrow flow channel, which is beneficial for more precisely controlling the irrigation amount for the roots of the crops.

[0033] 3. When the slow-flow channel, which serves as the drip irrigation channel in the device, becomes blocked and the water delivery to the roots of the crops is hindered, the water pressure inside the delivery pipe gradually increases and drives the driven plug in the plug body assembly to move through the annular active plug. The moving driven plug respectively extracts the gas inside the two converging chambers through the two air extraction hoses connected to the fluid communication pipe, causing the elastic diaphragm that was originally elastically expanded to gradually reduce its volume. During this process, the flow-blocking swing piece in the slow-flow structure gradually changes from the initial open state to the closed state, increasing the cross-sectional area through which the water flow passes, and accelerating the water flow velocity in the slow-flow channel. This not only makes it easier for the accumulated impurities in the channel to be washed out, reducing the degree of blockage, but also increases the speed of the water flow towards the roots of the crops when the slow-flow channel is blocked, improving the irrigation efficiency.

[0034] 4. When a 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 further intensifies, resulting in a further increase in the water pressure inside the conduit. During the process of driving the driven plug in the plug assembly to move further through the annular active plug, the dynamic switch spring piece 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 compresses the return spring, causing the dynamic switch spring piece to contact the static switch terminal and triggering the warning light in the warning assembly to turn on, reminding the staff to clean the severely blocked irrigation device in time to ensure uniform irrigation of the farmland. Description of the Drawings

[0035] Figure 1 Schematic diagram of the overall structure of the present invention.

[0036] Figure 2 For the present invention Figure 1 Partial enlarged schematic diagram of part A in the present invention.

[0037] Figure 3 Bottom view of the overall structure of the present invention.

[0038] Figure 4 For the present invention Figure 3 Partial enlarged schematic diagram of part B in the present invention.

[0039] Figure 5 Top view of the overall structure of the present invention.

[0040] Figure 6 For the present invention Figure 5 Partial enlarged schematic diagram of part C in the present invention.

[0041] Figure 7 For the present invention Figure 6 Partial enlarged schematic diagram of part D in the present invention.

[0042] Figure 8 Cross-sectional view of the overall structure of the present invention.

[0043] Figure 9 For the present invention Figure 8 Partial enlarged schematic diagram of part E in the present invention.

[0044] Figure 10 Schematic diagram of the structure of the semi-cylindrical housing in the present invention.

[0045] Figure 11 For the present invention Figure 10 Partial enlarged schematic diagram of part F in the present invention.

[0046] Explanation of the reference numerals in the drawings:

[0047] 101, semi-cylindrical housing; 103, cylinder cover; 104, warning light; 106, air intake hose; 107, bottom filter cartridge; 108, guide pipe; 110, insulating cylinder base; 113, semi-thin drain port; 115, fluid through pipe; 118, semi-narrow flow channel; 119, insulating synchronous rod; 120, annular active plug body; 121, driven plug body; 122, cooperative cylinder housing; 123, dynamic switch spring piece; 124, static switch terminal; 125, flow blocking swing piece; 126, elastic diaphragm; 127, insulating end seat. Detailed implementation mode

[0048] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0050] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] Example 1, refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 8 , Figure 10, an embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction, which includes two semi-cylindrical shells 101 that can be hermetically assembled together. A slow-flow channel communicating with the inner cavity of the semi-cylindrical shell 101 is provided inside each semi-cylindrical shell 101, and two slow-flow structures that can be opened and closed are symmetrically arranged on one side close to the inner cavity of the semi-cylindrical shell 101 within the space surrounded by the two slow-flow channels;

[0052] A cylinder cover 103 is hermetically covered and connected to the tops of the two semi-cylindrical shells 101. A guide pipe 108 is hermetically rotatably connected to the cylinder cover 103. A pressure sensor device is provided on the guide pipe 108. The pressure sensor device includes an insulating cylinder base 110 connected to the side wall of the guide pipe 108. Upper and lower reserved holes are respectively provided at the top and bottom ends of the insulating cylinder base 110. A plug body assembly is provided in the lower reserved hole. Two air guide hoses 106 are provided on the plug body assembly, and the plug body assembly is respectively communicated with the two slow-flow structures through the two air guide hoses 106;

[0053] A schematic assembly that cooperates with the plug body assembly is provided at the top end of the insulating cylinder base 110. When the plug body assembly moves towards the schematic assembly, the plug body assembly sucks the fluid inside the slow-flow structure through the air guide hose 106, and makes the slow-flow structure gradually change from the initial open state to the closed state. The plug body assembly, the air guide hose 106, and the slow-flow structure are all filled with fluid, and the plug body assembly extracts or injects fluid into the slow-flow structure through the air guide hose 106. The fluid here is preferably air.

[0054] During the process of delivering water to the roots of crops, this irrigation device can monitor the water pressure in the guide pipe 108 through the pressure sensor device. When the slow-flow channel serving as the drip irrigation flow path in the device is blocked and the water delivery to the roots of crops is hindered, the increase in water pressure in the guide pipe 108 drives the plug body assembly in the pressure sensor device to move towards the schematic assembly, and makes the slow-flow structure in the slow-flow channel gradually change from the initial open state to the closed state, so that the water flow velocity in the slow-flow channel is accelerated. This not only makes the impurities accumulated in the channel easier to be washed out, which is beneficial to reducing the degree of blockage, but also increases the speed of water flow towards the roots of crops when the slow-flow channel is blocked, improves the irrigation efficiency, effectively reduces the impact on the normal growth of crops caused by the blockage of the irrigation device, thereby effectively alleviating the uneven farmland irrigation situation, promoting the balanced growth of crops in the farmland, improving the yield and quality of the farmland, and thus contributing to the construction of high-standard farmland.

[0055] Refer to Figure 3 , Figure 4 , Figure 8 , Figure 10 and Figure 11, embodiments of the present invention provide a water-saving irrigation device for high-standard farmland construction. The slow-flow channel includes a semi-narrow flow channel 118, a semi-accommodation groove, and a semi-fine drain port 113 disposed inside the semi-cylindrical housing 101. The semi-narrow flow channel 118 is arranged in an "S" shape;

[0056] The semi-accommodation groove communicates with the semi-narrow flow channel 118;

[0057] One end of the semi-fine drain port 113 penetrates through the bottom of the semi-cylindrical housing 101, and the other end communicates with the semi-narrow flow channel 118;

[0058] The end of the semi-narrow flow channel 118 away from the semi-fine drain port 113 communicates with the inner cavity of the semi-cylindrical housing 101, and the semi-accommodation groove is arranged at a position of the semi-narrow flow channel 118 close to the inner cavity of the semi-cylindrical housing 101.

[0059] When two semi-cylindrical housings 101 are hermetically assembled together, the two semi-narrow flow channels 118 are aligned to form a complete narrow flow channel. Similarly, after the semi-fine drain ports 113 on the two semi-cylindrical housings 101 are aligned with each other, a complete fine drain port is formed.

[0060] Refer to Figure 8 and Figure 9 , embodiments of the present invention provide a water-saving irrigation device for high-standard farmland construction. The plug body assembly includes a cooperative cylinder shell 122 connected inside the lower reserved hole through a bracket;

[0061] A driven plug body 121 slides up and down and seals inside 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 penetrates into the upper reserved hole and is connected to a dynamic switch elastic sheet 123;

[0062] An annular active plug body 120 that slides up and down and seals is sleeved outside the insulating synchronous rod 119 inside the lower reserved hole;

[0063] A return spring is sleeved outside 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;

[0064] The bottom end of the cooperative cylinder shell 122 is connected to a fluid through pipe 115, and the end of the fluid through pipe 115 away from the cooperative cylinder shell 122 passes through the side wall of the insulating cylinder seat 110 and extends out from the side wall of the insulating cylinder seat 110.

[0065] Refer to Figure 6 , Figure 7 , Figure 10 and Figure 11, an embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction. The slow-flow structure includes a plurality of flow-blocking swing pieces 125 that are elastically rotatably connected to any one of the half accommodating grooves by torsion springs and are arranged along the flow direction of the semi-narrow flow channel 118. An elastic diaphragm 126 is provided on the side of each flow-blocking swing piece 125;

[0066] The slow-flow structure further includes a converging chamber and communication channels equal in number to the elastic diaphragms 126;

[0067] The communication channels are arranged on the side wall of the half accommodating groove, and a communication channel is provided at the position corresponding to each elastic diaphragm 126 on the side wall of the half accommodating groove. Each elastic diaphragm 126 is respectively connected to the corresponding communication channel;

[0068] The converging chamber is located inside the semi-cylindrical shell 101, and a plurality of communication channels in the slow-flow structure are all connected to the converging chamber;

[0069] The elastic diaphragm 126 is in an expanded state in the initial state and tightly adheres to the surface of the flow-blocking swing piece 125, so that the flow-blocking swing piece 125 opens and presents an open state;

[0070] One ends of two air guiding hoses 106 are both connected to the side wall of the semi-cylindrical shell 101 where the slow-flow structure is installed, and the two air guiding hoses 106 are respectively connected to the two converging chambers in the semi-cylindrical shell 101;

[0071] The other ends of the two air guiding hoses 106 are both fixedly connected to one end of the fluid through pipe 115 extending out of the side wall of the insulating cylinder base 110.

[0072] The irrigation water source is gradually injected into the space surrounded by the inner cavities of the two semi-cylindrical shells 101 through the water guiding pipe 108. Due to the slow-flow effect of the slow-flow channel and the slow-flow structure, the flow rate of the water source flowing out through the slow-flow channel is less than the flow rate flowing into the space surrounded by the inner cavities of the two semi-cylindrical shells 101, so that the water source gradually fills the interior of the space surrounded by the two semi-cylindrical shells 101 and the interior of the water guiding pipe 108;

[0073] 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 and injects gas into the two converging chambers through the two air guiding hoses 106. Subsequently, the air pressure in the communication channels connected to the converging chambers increases and drives the elastic diaphragm 126 to elastically expand. The elastically expanded elastic diaphragm 126 drives the flow-blocking swing piece 125 to change from the closed state to the open state;

[0074] After the irrigation water source flows into the slow-flow channel, the water flow rate is slowed down through the narrow semi-narrow flow channel 118. Since the elastic diaphragm 126 in the slow-flow structure is in an expanded state initially and closely adheres to the surface of the flow-blocking swing piece 125, the flow-blocking swing piece 125 opens and presents an open state. The two slow-flow structures that are symmetrically arranged and both in an open state thus reduce the cross-sectional area through which the water flows, further slowing down the water flow rate in the semi-narrow flow channel 118, which is beneficial to more precisely control the irrigation amount for the crop roots.

[0075] When the slow-flow channel, which serves as the drip irrigation channel in the device, becomes blocked and the water delivery to the crop roots is hindered, the water pressure inside the guide pipe 108 gradually increases and drives the driven plug body 121 in the plug body assembly to move through the annular active plug body 120. The moving driven plug body 121 respectively extracts the gases inside the two converging chambers through the two air guide hoses 106 connected to the fluid communication pipe 115, causing the elastic diaphragm 126 that was originally elastically expanded to gradually reduce its volume. During this process, the flow-blocking swing piece 125 in the slow-flow structure gradually changes from the initial open state to a closed state, increasing the cross-sectional area through which the water flows, accelerating the water flow rate in the slow-flow channel. This not only makes the impurities accumulated in the channel easier to be washed out, reducing the degree of blockage, but also increases the speed of the water flow towards the crop roots when the slow-flow channel is blocked, improving the irrigation efficiency.

[0076] Refer to Figure 8 and Figure 9 As shown in [relevant figures], an embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction. The schematic components include an insulating end seat 127 hermetically connected to the end of the insulating cylinder base 110, and the insulating end seat 127 covers the opening of the upper reserved hole.

[0077] An alarm lamp 104 is connected to the insulating end seat 127. A static switch terminal 124 is connected to the alarm lamp 104, and the end of the static switch terminal 124 far from the alarm lamp 104 passes through the insulating end seat 127 and extends into the upper reserved hole and is arranged opposite to the dynamic switch elastic piece 123.

[0078] Both the dynamic switch elastic piece 123 and the static switch terminal 124 are electrically connected to the alarm lamp 104, and when the dynamic switch elastic piece 123 moves towards the static switch terminal 124 and contacts the static switch terminal 124, the alarm lamp 104 is triggered to turn on.

[0079] When a 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 further intensifies, resulting in a further increase in the water pressure inside the guide pipe 108. During the process of driving the driven plug 121 in the plug assembly to move further through the annular active plug 120, the dynamic switch elastic piece 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 compresses the return spring, causing the dynamic switch elastic piece 123 to contact the static switch terminal 124 and triggering the warning light 104 in the warning component to turn on, reminding the staff to clean the severely blocked irrigation device in time to ensure uniform irrigation of the farmland.

[0080] When cleaning the slow-flow channel, the two semi-cylindrical shells 101 that were originally assembled together are disassembled, facilitating people to clean the blocked slow-flow channel.

[0081] Embodiment 2. The difference between this embodiment and Embodiment 1 is: Refer to Figure 1 , Figure 3 and Figure 5 , The embodiment of the present invention provides a water-saving irrigation device for high-standard farmland construction. The bottoms of the two semi-cylindrical shells 101 are jointly connected with a bottom filter cylinder 107. Among them, the bottom filter cylinder 107 is detachably installed and fixed at the bottom of the two assembled semi-cylindrical shells 101 by means of threaded connection or snap connection;

[0082] A plurality of filter holes are evenly formed at the bottom of the bottom filter cylinder 107.

[0083] By means of the bottom filter cylinder 107 installed at the bottoms of the two semi-cylindrical shells 101, it is possible to effectively prevent soil particles from directly invading the inside of the outlet of the semi-fine drain port 113, thereby avoiding the situation of blockage of the slow-flow channel.

[0084] It should be noted that in this article, relational terms such as first and second 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 mentioned in this article are all electrically connected to the 220V mains. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0085] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water-saving irrigation device for high-standard farmland construction, characterized by: The invention comprises two semi-cylindrical shells (101) which can be assembled together in a sealable manner, wherein each semi-cylindrical shell (101) is provided with a slow flow channel in communication with the inner cavity of the semi-cylindrical shell (101), and two slow flow structures which can be opened and closed are symmetrically provided on one side close to the inner cavity of the semi-cylindrical shell (101) in the space surrounded by the two slow flow channels; The tops of the two semi-cylinder shells (101) are sealed and covered together 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, and the pressure sensing device 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); 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 slow-flow structure comprises a plurality of flow-blocking flaps (125) which are elastically rotatably connected to any of the semi-accommodating grooves through 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); The elastic membrane (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; A schematic component cooperating with the plug component is provided at the top of the insulating cylinder seat (110), and when the plug component moves toward the schematic component, the plug component sucks 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.

2. A water-saving irrigation device for high-standard farmland construction according to claim 1, characterized in that: 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-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 connected to 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 cylinder shell (122) connected to the interior of the lower reserved hole through a bracket; A driven plug body (121) is sealed and slidably mounted in the cooperative cylinder shell (122) up and down, and 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 piece (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. The outer sleeve of the annular active plug body (120) is provided with a return spring, 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 shell seat (110) and extends out from the side wall of the insulating shell 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 piece (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 toward 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 5, 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 corresponding to the position of 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 plurality of communication cavities in the slow flow structure are all connected to the convergence chamber.

7. 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 (115) extending from the side wall of the insulating cylinder seat (110).

8. The water-saving irrigation device for high-standard farmland construction according to claim 1 is 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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