A special pond mouth device for paddy fields for integrated rice-fish farming and its use method

Abstract

The invention discloses a special pool mouth device for integrated rice-fish farming paddy fields and a method of using the device, comprising a water filter part and an adjusting part, wherein the water filter part comprises a water filter box, the inlet of the water filter box is detachably connected with a filter screen, and the outlet of the water filter box is connected with a water outlet pipe; the adjusting part comprises a gate box, the front and rear ends of the gate box are respectively connected with a water inlet pipe and a drain pipe, and the water outlet pipe is plugged and connected with the water inlet pipe; a gate plate is slidably connected in the gate box; a gate hole is provided on the gate plate, and the gate hole is detachably connected with the adjusting hole; an identification component is provided on the upper right side of the gate plate, and the identification component is correspondingly arranged with the gate hole, and the bottom end of the identification component is flush with the bottom edge of the gate hole. The invention fills the blank of a special pool mouth for integrated rice-fish farming paddy fields, is simple to operate, and is convenient to use, can effectively prevent fish, shrimps, and crabs from escaping when releasing water, and can also conveniently control the speed and water level of releasing water, does not require personnel to be on duty all the time, greatly improves the efficiency of field operations, and greatly increases the area of ​​integrated rice-fish farming paddy fields that can be managed by a single person.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to a special pond mouth device for paddy fields for integrated rice-fish farming and a use method thereof. Background Art

[0002] The integrated rice-fish farming model integrates the food chain theory, niche theory and interspecific mutualism theory of agricultural ecology, combines traditional intensive agriculture, modern low-consumption agriculture and three-dimensional high-efficiency agriculture, organically combines rice planting and aquaculture, and constructs a rice-fish rotation system through engineering transformation of rice fields. It comprehensively uses strategies such as large-scale development, industrial management, standard production, and brand operation to give full play to the potential of water and soil resources, achieve dual use of water, double harvests from one field, and win-win results between farming and breeding.

[0003] The successful implementation of integrated rice-fish farming requires the support of a set of key technologies, one of which is field water management. Whether it is rice cultivation or fish farming, frequent water intake and drainage are required to provide suitable water layer conditions and water quality environment. Therefore, efficient water intake and drainage management is extremely important for integrated rice-fish farming systems. The current integrated rice-fish farming field water intake and drainage management measures mainly take two forms: digging a screen at the earth ridge and burying a screen at the pond mouth. Digging holes in earthen ridges and installing screens is an ancient method. It refers to digging inlets or outlets on the ridges for water inlet and outlet, blocking the water inlet and outlet by taking soil on the spot or filling soil in woven bags, and using poles and mesh to surround the water outlet to prevent farmed fish and shrimp from escaping upstream or downstream. The advantage of this method is that it requires almost no additional cost, but its disadvantages are also obvious. Repeated digging and blocking of water outlets is labor-intensive, and the water level management efficiency is low due to the need for continuous manual inspections. The screens are easily knocked down by water erosion, and are difficult to clean after being blocked by floating objects. Therefore, one person can only manage a small number of fields, resulting in inefficient management and high costs. In order to improve efficiency and reduce costs, more and more producers control water inflow and discharge by burying pond mouths, for example, authorization announcement number: CN205653762U, authorization announcement date: 2016.10.19; authorization announcement number: CN205421211U, authorization announcement date: 2016.08.03, and also take the aforementioned isolation net measures, that is, burying pond mouth isolation nets; this method controls the water flow by opening and closing the pond mouth gate, which greatly improves the efficiency of water inflow and discharge management, but still requires manual continuous inspection and observation of the water level to determine the opening and closing of the gate, especially for the drainage outlet, because the pond mouths used are all "downward water" design, that is, the waterway is open when the gate is pulled up, and the water flows along the lower edge of the gate. If the manual inspection is not timely, the water in the field will continue to flow out until it is drained, which poses a great risk to the integrated rice-fish farming system. In order to overcome this risk, I have developed a water-level controllable paddy field drainage gate device, with the authorization announcement number: CN211200324U, and the authorization announcement date: 2020.08.07. It innovates the "upward water" method, that is, the water in the field is discharged along the upper edge of the gate. When the water level in the field is higher than the preset height of the gate, it starts to drain automatically, and when the remaining water level in the field drops to the preset height of the gate, it stops draining automatically, thereby avoiding the loss of management efficiency caused by the continuous outflow of water in the field after the "downward water" pool mouth device is turned on, which requires someone to continuously patrol the remaining water level in the field and decide on the opening and closing of the gate. Through the coordinated use of the "upward water" pool mouth and the partition net, the field management efficiency of integrated rice-fish farming has been greatly improved again. However, with the gradual promotion of crab farming in rice fields, the strong climbing ability of river crabs makes it easy for them to cross the partition net or the gap between the partition net and the outer anti-escape membrane, resulting in the traditional partition net interception measures. The effect of preventing escape through the pool mouth is greatly reduced, causing serious economic losses. In addition, building a screen for each pool opening also requires a lot of work and investment.

[0004] In order to solve the problems that the partition net in rice field crab farming cannot effectively prevent river crabs from escaping through the pond mouth and that it is time-consuming and labor-intensive to build the partition net at the pond mouth in rice-fish integrated farming paddy fields, the present invention will propose a special pond mouth device for rice-fish integrated farming paddy fields to solve the above problems and fill the gap of special pond mouths for rice-fish integrated farming paddy fields. Summary of the invention

[0005] The purpose of the present invention is to provide a special pond mouth for rice-fish integrated farming in paddy fields and a use method thereof, so as to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a special pond mouth device for paddy fields for integrated rice and fish farming, comprising

[0007] A water filter unit, the water filter unit comprising a water filter box, the inlet of the water filter box is detachably connected with a filter screen, and the outlet of the water filter box is connected with a water outlet pipe;

[0008] The regulating part comprises a gate box, the front and rear ends of the gate box are respectively connected with a water inlet pipe and a drain pipe, and the water outlet pipe is plugged and connected with the water inlet pipe; an regulating hole is penetrated through the top of the gate box, and a gate plate is slidably connected in the regulating hole; a gate hole is opened on the gate plate, and the gate hole is detachably connected to the regulating hole; an identification component is arranged on the upper right side of the gate plate, and the identification component is arranged corresponding to the gate hole.

[0009] Preferably, the body of the water filter box is fan-shaped, and the filter screen is detachably connected to the fan-shaped curved surface of the water filter box; the water outlet pipe is fixedly connected to the fan-shaped tip of the water filter box and communicated with the inner cavity of the water filter box.

[0010] Preferably, the fan-shaped arc surface of the water filter box is provided with a guide slide groove, one end of the guide slide groove is closed, and the other end of the guide slide groove is open; the filter screen is slidably connected in the guide slide groove.

[0011] Preferably, the outer diameter of the water outlet pipe is matched with the inner diameter of the water inlet pipe, and the water outlet pipe is inserted into the water inlet pipe; the inner diameter of the water inlet pipe is the same as the inner diameter of the drain pipe; and the side length of the gate hole is not less than the inner diameter of the water inlet pipe.

[0012] Preferably, the height of the gate plate is 3.3-3.5 times the side length of the gate hole, the gate hole is square and is opened at the lower center of the gate plate; a hand hole is opened at the top of the gate plate, and a limiting device is set at the lower end of the gate plate.

[0013] Preferably, the limiting device includes a first limiting block and a second limiting block respectively arranged on both sides of the bottom end of the gate plate, the first limiting block is fixedly connected to a plurality of plug rods at one end facing the gate plate, and the second limiting block is provided with a plurality of insertion holes matching the plug rods at one end facing the gate plate, and the plug rods are inserted into the insertion holes after passing through the through holes on the gate plate; the plug rods and the insertion holes are locked by a self-locking component.

[0014] Preferably, the self-locking component includes a self-locking hole opened in the socket, and the self-locking hole is perpendicular to the side wall of the socket; a self-locking block is slidably connected in the self-locking hole, and a locking spring is fixedly connected between the self-locking block and the self-locking hole; the side wall of the insertion rod is provided with a card slot adapted to the end of the self-locking block, and the card slot is detachably connected to the self-locking block.

[0015] Preferably, a circle of placement grooves are provided around the gate plate, a sealing strip is arranged in the placement groove, and the sealing strip surrounds the gate plate in a circle; the outer side of the sealing strip abuts against the side wall of the adjustment hole.

[0016] Preferably, the four corners of the gate plate are rounded.

[0017] A method for using a special pond mouth device for rice-fish integrated farming paddy fields, comprising the following steps:

[0018] 1) Insert the outlet pipe into the inlet pipe and fix it firmly;

[0019] 2) Insert the gate plate into the adjustment hole from the top, so that the lower end of the gate plate leaks out from the bottom of the adjustment hole, and install the limit device;

[0020] 3) Select a suitable location, install the water filter and the regulating part, and reserve space for the gate adjustment;

[0021] 4) Select a suitable filter screen and install it at the inlet of the water filter box. When used as the water inlet, the inlet of the water filter box is connected to the water diversion channel and the drainage pipe is connected to the field to be watered. When used as the drainage pool, the inlet of the water filter box is connected to the field to be drained;

[0022] 5) Lift or push down the gate plate to control the water flow in the gate box and adjust the water flow. When used as a drainage pool, the target water level in the drainage field can be set;

[0023] 6) After adjustment is completed, start filling or draining water.

[0024] The present invention discloses the following technical effects: the present invention discloses a special pool mouth device for rice-fish integrated farming paddy fields, which integrates a water filter part and a regulating part, can be used for both paddy field drainage and paddy field water intake, can effectively prevent fish, shrimps and crabs from escaping through the pool mouth, and no independent separation net is needed for each inlet and outlet pool mouth; the filter net can be detachably connected at the inlet of the water filter box, and a suitable filter net can be selected according to the types of fish, shrimps and crabs farmed in the rice field and reminders, so as to prevent fish, shrimps and crabs from escaping, and also facilitate the control of water flow speed; by arranging a filter with a gate hole in the regulating box The gate plate realizes the integration of "downward water flow" type water inlet and "upward water flow" type drainage at the pond mouth of the rice field, and has the advantages of high water inlet efficiency of the "downward water flow" type pond mouth, simple drainage management of the "upward water flow" type pond mouth, and easy response to sudden rainstorms, which simplifies the management of rice field water inlet and drainage, and greatly improves the management efficiency of rice field water inlet and drainage; the side of the gate plate is provided with an identification component to display the relationship between the position of the gate hole and the water depth of the rice field, with obvious contrast, and conveniently adjust the position of the gate hole to control the water depth in the rice field. There is no need to check the water depth all the time, and the rice field will not be drained, which is convenient for management. The present invention fills the blank of a special pond mouth for rice-fish integrated breeding paddy fields, has a simple structure, a high degree of modularization, simple operation, and easy use. It can effectively prevent fish, shrimps, and crabs from escaping when releasing water, and can also conveniently control the speed and water level of water release, without the need for personnel to be on duty all the time, which greatly improves the efficiency of field operations, and greatly increases the area of ​​rice-fish integrated breeding paddy fields that can be managed by a single person. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is an axial view of the special pond mouth device for paddy fields for integrated rice-fish farming according to the present invention;

[0027] Figure 2 It is a side view of the special pool mouth device for paddy fields for integrated rice-fish farming of the present invention;

[0028] Figure 3 This is a front view of the gate of the present invention;

[0029] Figure 4 This is a schematic diagram of the water filter box structure of the present invention;

[0030] Figure 5 It is a schematic diagram of the filter screen of the present invention;

[0031] Figure 6 It is a schematic diagram of the gate structure of the present invention;

[0032] Figure 7It is a schematic diagram of the structure of the limiting device of the present invention;

[0033] Figure 8 for Figure 7 A partial enlarged view of middle A;

[0034] Fig. 9 A top view of a water filter box according to a second embodiment of the present invention;

[0035] Fig.10 This is a schematic diagram of the structure of a water filter box according to the second embodiment of the present invention;

[0036] Among them, 1. water filter box; 2. filter screen; 3. water outlet pipe; 4. gate box; 5. water inlet pipe; 6. drain pipe; 7. adjustment hole; 8. gate plate; 9. gate hole; 10. identification component; 11. guide slide; 12. hand hole; 13. first limit block; 14. second limit block; 15. plug rod; 16. plug hole; 17. self-locking hole; 18. locking spring; 19. self-locking block; 20. slot; 21. placement slot; 22. sealing strip; 23. connecting rod; 24. ruler; 25. sealing layer; 26. bracket; 27. water pumping motor; 28. water pumping wheel; 29. ​​water pumping blade; 30. hydroelectric power generation device. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Embodiment 1

[0040] Reference Figure 1-8 The present invention provides a special pond mouth device for paddy fields for integrated rice-fish farming, comprising

[0041] The water filter part is used for filtering and draining water and preventing fish, shrimps and crabs from escaping; the water filter part comprises a water filter box 1, the inlet of the water filter box 1 is detachably connected with a filter screen 2, and the outlet of the water filter box 1 is connected with a water outlet pipe 3;

[0042] The regulating part is used to regulate the water flow; the regulating part comprises a gate box 4, the front and rear ends of the gate box 4 are respectively connected with an inlet pipe 5 and a drain pipe 6, and the outlet pipe 3 is plugged and connected with the inlet pipe 5; an regulating hole 7 is penetrated through the top of the gate box 4, and a gate plate 8 is slidably connected in the regulating hole 7; a gate hole 9 is opened on the gate plate 8, and the gate hole 9 is detachably connected to the regulating hole 7; an identification component 10 is arranged on the upper right side of the gate plate 8, and the identification component 10 is arranged corresponding to the gate hole 9.

[0043] The present invention discloses a special pool mouth for paddy fields for integrated rice and fish farming, which integrates a water filtering part and a regulating part, can be used for both drainage and water intake of paddy fields, can effectively prevent fish, shrimps, crabs and the like from escaping through the pool mouth, and no independent partition net is needed to be built for each inlet and outlet pool mouth; the filter net 2 is detachably connected at the inlet of the water filter box 1, and a suitable filter net 2 can be selected according to the types of fish, shrimps and crabs farmed in the rice field and reminders, so as to prevent the fish, shrimps and crabs from escaping, and also facilitate the control of water flow speed; by arranging a gate plate 8 with a gate hole 9 in the regulating box, the paddy field can be controlled. The "downward water flow" type water inlet and "upward water flow" type drainage are integrated into one, and have the advantages of high "downward water flow" type water inlet efficiency, simple "upward water flow" type drainage management and easy response to sudden rainstorms, etc., which simplifies the management of water inlet and drainage of rice fields and greatly improves the efficiency of water inlet and drainage management of rice fields. An identification component 10 is set on the side of the gate plate 8 to display the relationship between the position of the gate hole 9 and the water depth of the rice field. The contrast is obvious, and the position of the gate hole 9 is convenient to adjust to control the water depth in the rice field. There is no need to check the water depth all the time, which will not cause the rice field to be drained, and it is convenient to manage.

[0044] Furthermore, except for the gate plate 8, all other parts of the device are injection-molded from plastic materials, which are light in weight and have good corrosion resistance; the plastic materials include but are not limited to phenolic plastics, polyurethane plastics, etc.

[0045] In a further optimized solution, the water filter box 1 has a fan-shaped body, and the filter screen 2 is detachably connected to the fan-shaped arc surface of the water filter box 1; the water outlet pipe 3 is fixed to the fan-shaped tip of the water filter box 1 and communicates with the inner cavity of the water filter box 1. The arc-shaped inlet of the water filter box 1 can slow down the accumulation of floating objects in the water at the filter screen 2 and the resulting water flow suppression, increase the water inlet and outlet rate, and even if the floating objects clog the filter screen 2 after long-term use, it can be easily cleaned and dredged using tools such as rakes.

[0046] Furthermore, the filter screen 2 is also arc-shaped to match the inlet of the water filter box 1, fits tightly, and is easy to install.

[0047] Furthermore, the water filter box 1 is surrounded by two panels and two side panels. The panels are fan-shaped, and the upper and lower ends of the side panels at both ends are fixedly connected to the two side edges of the panels; the ends of the two side panels away from the arc surface are fixedly connected together, and the joints are arc-shaped to form an arc plate, and the water outlet pipe 3 is fixedly connected to the center position of the arc plate; this form of water filter box 1 has a large inlet and a low outlet, and has a water gathering effect, thereby increasing the flow rate of the water outlet pipe 3.

[0048] Further optimization scheme, the fan-shaped arc surface of the water filter box 1 is provided with a guide slide groove 11, one end of the guide slide groove 11 is closed, and the other end of the guide slide groove 11 is open; the filter screen 2 is slidably connected in the guide slide groove 11. The filter screen 2 is slidably connected in the guide slide groove 11, which is convenient for replacement and maintenance; one end of the guide slide groove 11 is closed, and the other end is open. When installing the filter screen 2, the filter screen 2 is inserted from the open end of the guide slide groove 11 until the filter screen 2 hits the closed end of the guide slide groove 11 to complete the installation of the filter screen 2; one end of the guide slide groove 11 is closed and the other end is open, which is convenient for installing and removing the filter screen 2, and convenient for positioning the filter screen 2 to ensure that the filter screen 2 is installed in place.

[0049] Furthermore, the meshes of the filter 2 include different shapes and densities. When in use, the filter 2 with a suitable mesh size can be selected for replacement according to the size of the farmed fish, shrimps and crabs, without the need to replace the entire pond mouth, thereby reducing management costs.

[0050] Further optimization scheme, the outer diameter of the outlet pipe 3 is matched with the inner diameter of the inlet pipe 5, and the outlet pipe 3 is inserted into the inlet pipe 5; the inner diameter of the inlet pipe 5 is the same as the inner diameter of the drain pipe 6; the side length of the gate hole 9 is not less than the inner diameter of the inlet pipe 5. The outlet pipe 3 is inserted into the inlet pipe 5, so that all the water from the outlet pipe 3 flows into the inlet pipe 5 without causing water flow resistance; the inlet pipe 5 and the outlet pipe 3 are connected by the friction between the two, and the installation and disassembly are convenient; the side length of the gate hole 9 is not less than the inner diameter of the inlet pipe 5, and the flow area of ​​the gate hole 9 is larger than the inlet pipe 5, so as to prevent the gate hole 9 from obstructing the water flow.

[0051] Furthermore, a ferrule joint may be provided between the water inlet pipe 5 and the water outlet pipe 3 to improve the sealing and firmness of the connection; the ferrule joint is a commonly used connection joint, and its principle and use method are existing and will not be repeated here.

[0052] Further optimization scheme, the height of the gate plate 8 is 3.3-3.5 times the side length of the gate hole 9, the gate hole 9 is square and is opened at the lower center of the gate plate 8; a hand hole 12 is opened at the top of the gate plate 8, and a limit device is set at the lower end of the gate plate 8. The height of the gate plate 8 is preferably 3.4 times the side length of the gate hole 9, so that the gate plate 8 can block the regulating hole 7 through the upper and lower closed positions of the gate hole 9 upward and downward, and block the water flow of the gate box 4; according to different water inlet and outlet requirements, the gate plate 8 is moved upward or downward to connect the upper or lower end of the gate hole 9 with the water inlet pipe 5, and then water inlet and outlet are carried out. When it is necessary to control the water level of the paddy field, the gate plate 8 is moved upward until the lower end of the gate hole 9 is connected to the water inlet pipe 5, and the bottom edge of the gate hole 9 is elevated to the water level that needs to be reserved, so that the set high water level can be reserved.

[0053] A further optimized solution is that the limiting device includes a first limiting block 13 and a second limiting block 14 respectively arranged on both sides of the bottom end of the gate plate 8. The first limiting block 13 is fixedly connected to a plurality of plug rods 15 at one end facing the gate plate 8, and the second limiting block 14 is provided with a plurality of sockets 16 matched with the plug rods 15 at one end facing the gate plate 8. The plug rods 15 pass through the through holes on the gate plate 8 and are inserted into the sockets 16; the plug rods 15 and the sockets 16 are locked by a self-locking component. The limiting device is mainly used to prevent the gate plate 8 from falling out of the adjusting hole 7 when the gate plate 8 is pulled upward; after the gate plate 8 rises to a certain height, the top end of the limiting device abuts against the lower end of the gate box 4 to prevent the gate plate 8 from falling out; the limiting device is composed of a detachable first limiting block 13 and a second limiting block 14, the insertion rod 15 of the first limiting block 13 is inserted into the insertion hole 16 of the second limiting block 14, and the insertion rod 15 passes through the limiting hole on the gate plate 8 to fix the first limiting block 13 and the second limiting block 14 to the gate plate 8.

[0054] Furthermore, the second limit block 14 is arranged in the direction of water flow inflow, and the impact of the water flow exerts a certain pressure on the second limit block 14 to prevent the second limit block 14 from detaching.

[0055] Further optimization scheme, the self-locking assembly includes a self-locking hole 17 provided in the insertion hole 16, the self-locking hole 17 is perpendicular to the side wall of the insertion hole 16; a self-locking block 19 is slidably connected in the self-locking hole 17, and a locking spring 18 is fixedly connected between the self-locking block 19 and the self-locking hole 17; the side wall of the insertion rod 15 is provided with a card slot 20 adapted to the end of the self-locking block 19, and the card slot 20 is detachably connected to the self-locking block 19. When the insertion rod 15 is inserted, the self-locking block 19 is pushed to slide into the self-locking hole 17. When the insertion rod 15 is in place, the card slot 20 is aligned with the self-locking hole 17, and the locking spring 18 pushes the self-locking block 19 to extend outward and snap into the card slot 20, completing the locking of the insertion rod 15 and the insertion hole 16.

[0056] Furthermore, the slot 20 is a hemispherical groove, one end of the self-locking block 19 is a hemispherical shape that matches the slot 20, and the other end is a cylinder with the same diameter as the hemisphere. The height of the cylinder is not less than the distance from the outlet of the self-locking hole 17 to the lower end of the slot 20, thereby preventing the self-locking block 19 from being pushed out of the self-locking hole 17.

[0057] Further optimization scheme, a circle of placement grooves 21 are provided around the gate plate 8, and a sealing strip 22 is provided in the placement groove 21, and the sealing strip 22 surrounds the gate plate 8 in a circle; the outer side of the sealing strip 22 abuts against the side wall of the adjustment hole 7. When the gate plate 8 is inserted into the adjustment hole 7, the outer side of the sealing strip 22 abuts against the inner cavity of the gate box 4 and deforms, firstly, the gap between the gate plate 8 and the gate box 4 is blocked to prevent water leakage and improve the sealing of the device; secondly, the friction between the gate plate 8 and the gate box 4 is increased by the sealing strip 22, which prevents the gate plate 8 from sliding without external force after positioning, and improves stability.

[0058] Furthermore, a sealing layer 25 is radiated from one end of the gate plate 8 toward the water inlet pipe 5 , and the sealing layer 25 has the same function as the sealing strip 22 .

[0059] Further optimization scheme, the four corners of the gate plate 8 are rounded. The four corners of the gate plate 8 are rounded to prevent the sharp four corners from scratching the operator during operation; the edges of the gate plate 8 are blunted so that the gate plate 8 does not have right angles or sharp angles to prevent scratches.

[0060] Furthermore, the identification component 10 includes a connecting rod 23 fixedly connected to the gate plate 8. When the gate plate 8 is inserted into the gate box 4, the connecting rod 23 is located outside the gate box 4. A scale 24 with a scale is provided on the connecting rod 23. The bottom end of the scale 24 is flush with the bottom edge of the gate hole 9, and the top end of the scale 24 is flush with the top end of the gate hole 9, which is convenient for intuitively observing the position of the gate hole 9 at this time and convenient for adjustment.

[0061] A method for using a special pond mouth device for rice-fish integrated farming paddy fields, comprising the following steps:

[0062] 1) Insert the water outlet pipe 3 into the water inlet pipe 5 and fix it firmly; the water outlet pipe 3 is inserted into the water inlet pipe 5 to facilitate pouring the water in the water filter box 1 into the gate box 4.

[0063] 2) Insert the gate plate 8 into the adjustment hole 7 from the top, so that the lower end of the gate plate 8 leaks out from the bottom of the adjustment hole 7, and install the limiting device; lift the gate plate 8 by the handle and insert it into the gate box 4, so that the bottom end leaks out from the bottom of the gate box 4, and then insert the insertion rod 15 of the first limiting block 13 into the through hole and leak out from the other end, and insert it into the corresponding insertion hole 16 of the second limiting block 14, and the slot 20 of the insertion rod 15 is stuck with the spherical head of the self-locking block 19 to complete the installation.

[0064] 3) Select a suitable location, install the water filtering part and the regulating part, and reserve adjustment space for the gate plate 8; select a suitable location beside the paddy field and install the device, with the water filtering box 1 located on one side of the water source and the drainage pipe 6 on the other side; reserve movable space for the gate plate 8 below the gate plate 8, the depth of which is 1 / 2-2 / 3 of the gate plate 8, so as to facilitate moving the gate plate 8 when adjusting the water flow speed and height.

[0065] 4) Select a suitable filter screen 2 and install it to the inlet of the water filter box 1. When used as an inlet, the inlet of the water filter box 1 is connected to the water diversion channel, and the drain pipe 6 is connected to the field to be irrigated. When used as a drainage pool outlet, the inlet of the water filter box 1 is connected to the field to be drained; water is filtered by the filter screen 2 and flows into the water filter box 1, and flows into the gate box 4 from the outlet pipe 3; debris and fish, shrimp and crabs are isolated by the filter screen 2 and cannot enter the water filter box 1, preventing blockage and the escape of fish, shrimp and crabs.

[0066] 5) Lift or push down the position of the gate plate 8 to control the water flow in the gate box 4 and adjust the water flow; when used as an inlet pool, control the center of the gate hole 9 to align with the water inlet pipe 5 to achieve the maximum water inlet flow, and push down or lift the gate plate 8 to reduce the water inlet flow. When the gate plate 8 is moved to make the gate hole 9 and the water inlet pipe 5 completely misaligned, the water flow can be completely cut off; when used as a drainage pool outlet, control the center of the gate hole 9 to align with the water inlet pipe 5 to achieve the maximum drainage flow, and pull or push down the gate plate 8 to reduce the drainage flow; when the paddy field is drained but a certain depth of water needs to be retained, control the lower edge of the gate hole 9 to be flush with the water level to be retained. When the water level in the paddy field is flush with the lower edge of the gate hole 9, the gate plate 8 cuts off the water flow, and the water in the paddy field no longer flows out. Continuing to pull the gate plate 8 can completely cut off the water flow.

[0067] 6) After adjustment is completed, start filling or draining water.

[0068] The present invention fills the blank of special pool mouths for integrated rice-fish farming paddy fields. It has a simple structure, a high degree of modularization, simple operation and easy use. It can effectively prevent fish, shrimps and crabs from escaping when releasing water, and can also conveniently control the speed and water level of water release. There is no need for personnel to be on duty all the time, which greatly improves field operation efficiency. The area of ​​integrated rice-fish farming paddy fields that can be managed by a single person is greatly increased.

[0069] Embodiment 2

[0070] According to the instruction manual Figure 9-10 It can be seen that the difference between this embodiment and embodiment one is that a spoiler component is symmetrically arranged at the inlet of the water filter box 1 of this embodiment; the spoiler component is mainly used to move garbage or other floating objects flowing toward the inlet of the water filter box 1 to the side away from the inlet of the water filter box to prevent clogging of the filter screen 2.

[0071] The spoiler assembly includes a bracket 26 fixedly connected to the top of the water filter box 1, the bracket 26 extends away from the water outlet pipe 3, and a water-displacing motor 27 is installed at the bottom end of the bracket. The output shaft of the water-displacing motor 27 is fixedly connected to a water-displacing wheel 28, and the outer wall of the water-displacing wheel 28 is axially fixed with a plurality of water-displacing blades 29.

[0072] A hydroelectric power generation device 30 is provided at the inlet of the water outlet pipe 3 of the water filter box 1 , and the hydroelectric power generation device 30 is electrically connected to the two water pumping motors 27 .

[0073] When water flows into the water filter box 1, the water flow drives the hydroelectric device 30 to generate current, and the current drives the water-displacing motor 27 to rotate, thereby causing the water-displacing wheel 28 to drive the water-displacing blades 29 to rotate, thereby displacing garbage and other floating objects on the water surface to both sides to prevent the filter screen 2 from being blocked.

[0074] In the description of the present invention, it should be understood that the terms "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 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.

[0075] The above embodiments are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A special pond mouth device for paddy fields for integrated rice-fish farming, characterized in that: include A water filter section, the water filter section comprising a water filter box (1), the inlet of the water filter box (1) being detachably connected to a filter screen (2), and the outlet of the water filter box (1) being connected to a water outlet pipe (3); The regulating part comprises a gate box (4), the front and rear ends of the gate box (4) are respectively connected with a water inlet pipe (5) and a water discharge pipe (6), and the water outlet pipe (3) is plugged and connected with the water inlet pipe (5); a regulating hole (7) is formed through the top of the gate box (4), and a gate plate (8) is slidably connected in the regulating hole (7); a gate hole (9) is formed on the gate plate (8), and the gate hole (9) is detachably connected to the regulating hole (7); an identification component (10) is provided on the upper right side of the gate plate (8), and the identification component (10) is arranged corresponding to the gate hole (9); The water filter box (1) has a fan-shaped body, and the filter screen (2) is detachably connected to the fan-shaped curved surface of the water filter box (1); the water outlet pipe (3) is fixedly connected to the fan-shaped tip of the water filter box (1) and communicates with the inner cavity of the water filter box (1); The fan-shaped arc surface of the water filter box (1) is provided with a guide slide groove (11), one end of the guide slide groove (11) is closed, and the other end of the guide slide groove (11) is open; the filter screen (2) is slidably connected in the guide slide groove (11); The filter screen (2) is in an arc shape matching the inlet of the water filter box (1); the water filter box (1) comprises two panels and two side panels, the panels are in a fan shape, and the upper and lower ends of the side panels at both ends are fixedly connected to the two side edges of the panels; the ends of the two side panels away from the arc surface are fixedly connected together, and the joint is in an arc shape to form an arc plate, and the water outlet pipe (3) is fixedly connected to the center position of the arc plate; The inlet of the water filter box (1) is symmetrically provided with a flow disturbance component; the flow disturbance component is mainly used to move garbage or other floating objects flowing toward the inlet of the water filter box (1) to a side away from the inlet of the water filter box to prevent clogging of the filter screen (2); The spoiler assembly comprises a bracket (26) fixedly connected to the top of the water filter box (1), the bracket (26) extending in a direction away from the water outlet pipe (3), a water pumping motor (27) being installed at the bottom end of the bracket (26), a water pumping wheel (28) being fixedly connected to the output shaft of the water pumping motor (27), and a plurality of water pumping blades (29) being fixedly connected axially to the outer wall of the water pumping wheel (28); A hydroelectric power generation device (30) is provided at the inlet of the water outlet pipe (3) of the water filter box (1), and the hydroelectric power generation device (30) is electrically connected to the two water pumping motors (27); When water flows into the water filter box (1), the water flow drives the hydroelectric power generation device (30) to generate current, and the current drives the water pumping motor (27) to rotate, thereby causing the water pumping wheel (28) to drive the water pumping blades (29) to rotate, thereby pushing garbage and other floating objects on the water surface to both sides to prevent clogging of the filter screen (2).

2. The special pond mouth device for paddy fields for integrated rice-fish farming according to claim 1, characterized in that: The outer diameter of the water outlet pipe (3) matches the inner diameter of the water inlet pipe (5), and the water outlet pipe (3) is plugged into the water inlet pipe (5); the inner diameter of the water inlet pipe (5) is the same as the inner diameter of the drainage pipe (6); and the side length of the gate hole (9) is not less than the inner diameter of the water inlet pipe (5).

3. The special pond mouth device for paddy fields for integrated rice-fish farming according to claim 1, characterized in that: The height of the gate plate (8) is 3.3-3.5 times the side length of the gate hole (9); the gate hole (9) is square and is provided at a position slightly below the center of the gate plate (8); a hand hole (12) is provided at the top end of the gate plate (8), and a limit device is provided at the lower end of the gate plate (8).

4. The special pond mouth device for paddy fields for integrated rice-fish farming according to claim 3, characterized in that: The limiting device comprises a first limiting block (13) and a second limiting block (14) respectively arranged on both sides of the bottom end of the gate plate (8); a plurality of plug rods (15) are fixedly connected to one end of the first limiting block (13) facing the gate plate (8); a plurality of insertion holes (16) adapted to the plug rods (15) are opened on one end of the second limiting block (14) facing the gate plate (8); the plug rods (15) are inserted into the insertion holes (16) after passing through the through holes on the gate plate (8); and the plug rods (15) and the insertion holes (16) are locked by a self-locking component.

5. The special pond mouth device for paddy fields for integrated rice-fish farming according to claim 4, characterized in that: The self-locking component comprises a self-locking hole (17) provided in the insertion hole (16), wherein the self-locking hole (17) is perpendicular to the side wall of the insertion hole (16); a self-locking block (19) is slidably connected in the self-locking hole (17), and a locking spring (18) is fixedly connected between the self-locking block (19) and the self-locking hole (17); and a slot (20) adapted to the end of the self-locking block (19) is provided on the side wall of the insertion rod (15), and the slot (20) is detachably connected to the self-locking block (19).

6. The special pond mouth device for paddy fields for integrated rice-fish farming according to claim 1, characterized in that: The gate plate (8) is provided with a circle of placement grooves (21) around it, a sealing strip (22) is arranged in the placement groove (21), and the sealing strip (22) surrounds the gate plate (8) in a circle; the outer side of the sealing strip (22) abuts against the side wall of the adjustment hole (7).

7. The special pond mouth device for paddy fields for integrated rice-fish farming according to claim 1, characterized in that: The four corners of the gate plate (8) are rounded.

8. A method for using a special pond mouth device for rice-fish integrated farming paddy fields, according to any one of claims 1 to 7, characterized in that The following steps are involved: 1) Insert the water outlet pipe (3) into the water inlet pipe (5) and securely fasten it; 2) Insert the gate plate (8) from the top into the adjustment hole (7) so that the lower end of the gate plate (8) is exposed from the bottom end of the adjustment hole (7), and install the limit device; 3) Select a suitable location, install the water filter and the regulating part, and reserve space for adjusting the gate plate (8); 4) Select a suitable filter screen (2) and install it on the inlet of the water filter box (1). When used as a water inlet, the inlet of the water filter box (1) is connected to the water diversion channel and the drainage pipe (6) is connected to the field to be irrigated. When used as a drainage pool, the inlet of the water filter box (1) is connected to the field to be drained. 5) lifting or pressing down the position of the gate plate (8) to control the water flow in the gate box (4) and adjust the water flow. When used as a drainage pool outlet, the target water level in the drainage field can be set; 6) After adjustment is completed, start filling or draining water.

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