A buried container type water irrigator

Abstract

The invention provides a buried container type water irrigator, which comprises a water collecting container body and a water collecting container cover for allowing ground water to flow into the water collecting container body, the water collecting container body is buried underground, the side wall of the water collecting container body is a permeable side wall structure which can permeate water inside to the outside soil, the side wall of the water collecting container body is arranged to be inclined outward along the direction from underground to ground, the top of the water collecting container body is provided with an opening, and the water collecting container cover covers the opening on the top of the water collecting container body. In order to further improve the irrigation effect, the water irrigator further comprises a content container, and the side wall of the water collecting container body is provided with radial water permeation pipes. The buried container type water irrigator has the advantages of simple structure, ability of storing irrigation water or rainwater, ability of quickly meeting the water demand of medium and deep root systems and reducing ground evaporation, good irrigation effect, uniform wetting body, and favorability for the rapid growth of plants.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agroforestry technology, in particular to a kind of agroforestry irrigation water distributor. BACKGROUND

[0002] In the process of watering irrigation in agroforestry, when the irrigation flow is large, the soil cannot be infiltrated in time, forming surface runoff and wasting water; when the rainfall intensity is large and the duration is long, the rainfall cannot be infiltrated in time and forms surface runoff, and the rainfall cannot be fully utilized; when the crop root system is distributed deep, the general watering method is difficult to supply the water required by the middle and deep root system in time. In arid and semiarid areas, evaporation is large, and general ground watering method is easy to cause evaporation of water surface or land surface layer, causing the utilization rate of rainfall and irrigation water to decrease. Therefore, for middle and deep root crops, the existing various watering methods are still difficult to meet the needs of timely water supply for middle and deep root zone.

[0003] The existing water distributor is affected by gravity, and the shape of the soil wetting body is generally ellipsoidal, the vertical wetting range is large, and the horizontal wetting range is small, so the single water distributor controls small irrigation area, the uniformity of soil irrigation wetting is poor, and there is no water distributor that can collect rainwater and irrigation water at present. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art, and to provide a buried container type water distributor which is simple in structure, can store irrigation water or rainwater, can quickly meet the water needs of middle and deep root system and reduce ground evaporation.

[0005] To solve the above technical problems, the technical solution provided by the present application is:

[0006] A buried container type water distributor, comprising a water collecting container body and a water collecting container cover for water flow from the ground to enter the water collecting container body, the water collecting container body is buried underground, and the side wall of the water collecting container body is a permeable side wall structure that can permeate water from the inside to the outside of the soil, the side wall of the water collecting container body is inclined outward along the direction from underground to ground, and the top of the water collecting container body is provided with an opening, and the water collecting container cover covers the opening at the top of the water collecting container body.

[0007] The above-mentioned buried container type water distributor, preferably, the included angle between the side wall of the water collecting container body and the horizontal plane is α, 70° < α < 88°.

[0008] The buried container type water irrigator, preferably, further comprises a content container and a plurality of water permeable pipes, the content container is arranged in the upper part of the inner cavity of the water collecting container body, the content container has a water storage cavity, and a water passing channel is arranged on the content container for allowing the ground surface water to directly flow into the bottom of the water collecting container body, a plurality of water permeating outlets are arranged on the bottom of the content container for supplying water to the water permeable pipes, and one end of the water permeable pipe is connected to the content container through the water permeating outlet.

[0009] The buried container type water irrigator, preferably, the water permeable pipe comprises a conical top cap and a plurality of connecting segments, the conical top cap is inserted into the soil outside the water irrigator, the plurality of connecting segments are connected in sequence to form a connecting pipe, the connecting pipe is connected to the conical top cap at one end and connected to the content container at the other end through the water permeating outlet.

[0010] The buried container type water irrigator, preferably, the height of the water collecting container body is h, h = pH - h1, wherein H is the planned wetting layer depth of crops, p is the water collecting container burying depth ratio, p is 0.40-0.55, and h1 is the ditch depth of the field water delivery ditch or the rainwater collecting ditch.

[0011] The buried container type water irrigator, preferably, the volume of the water collecting container body is determined mainly according to the rainwater collecting amount, and the bottom surface diameter is D2, wherein V is the designed rainwater collecting amount on the area controlled by the water irrigator, q is the rainwater lagging and storing coefficient, q is 0.6-0.9, and V1 is the lagging and storing volume of the field water delivery ditch or the rainwater collecting ditch in the area controlled by the water irrigator.

[0012] The buried container type water irrigator, preferably, the diameter of the top opening of the water collecting container body is D1, D1 = D2 + 2hcotα.

[0013] The buried container type water irrigator, preferably, the side wall of the water collecting container cover is arranged to be inclined and contracted towards the center thereof from bottom to top.

[0014] The buried container type water irrigator, preferably, the water collecting container cover comprises a transition section and a water inlet section for allowing the ground surface water to flow into the water collecting container body, a water inlet is arranged on the side wall of the water inlet section, the angle between the side wall of the transition section and the horizontal plane is β, the angle between the side wall of the water inlet section and the horizontal plane is γ, and γ > β.

[0015] The buried container type water irrigator, preferably, the angle β between the side wall of the transition section and the horizontal plane is 5°-30°, and the angle γ between the side wall of the water inlet section and the horizontal plane is < 85°.

[0016] Preferably, a rotating card sinking groove is arranged on the top of the water collecting container body, and the bottom of the water collecting container cover is provided with a rotating card capable of being screwed into the rotating card sinking groove.

[0017] Preferably, a sand filtering inner container is arranged on the inner wall of the water collecting container body, and a reverse filtration membrane sleeve is wrapped on the outer wall of the water collecting container body to prevent fine particles from returning to the water collecting container body.

[0018] Preferably, a pipeline water supply port capable of being connected with an external water supply pipeline is arranged above the side wall of the water collecting container body, and the pipeline water supply port is communicated with the inner cavity of the water collecting container body.

[0019] Compared with the prior art, the advantages of the present application are as follows:

[0020] 1. The buried container type water irrigator of the present application is characterized in that: the ground water flows into the water collecting container body from the water collecting container cover, the water collecting container body is buried underground and can store a certain amount of water, and the evaporation amount can be effectively reduced. The water stored in the water collecting container body penetrates into the external soil through the side wall thereof, so that deep-rooted crops can be irrigated. In addition, the side wall of the water collecting container body is arranged in an inclined manner, forming a structure with a large opening diameter at the upper part and a small diameter at the bottom. The inclined side wall can increase the water infiltration area and the infiltration amount, and increase the horizontal infiltration, which is beneficial to the improvement of the irrigation uniformity and the penetration irrigation effect. On the basis of the ellipsoidal (egg-shaped) wetting body, a wetting body with horizontal expansion and vertical shortening is formed, the uniformity of the soil moisture distribution is improved, the soil moisture of the medium and deep root system and the medium layer is quickly supplemented, the evaporation of the irrigation water and the soil water is reduced, which is beneficial to the growth of the medium and deep rooted crops and meets the requirements of rainwater collection and storage. In addition, during the installation process, the water collecting container body is pressed into the soil pit, the side wall is completely attached to the slope of the soil pit without gaps, so that the preferential flow is not generated, and the irrigation uniformity is further improved. When the vertical force acts on the upper edge of the water collecting container body, part of the force can be decomposed to the soil below the side wall, the stress of the side wall in the downward direction is reduced, and the amount of manufacturing material is also reduced.

[0021] 2. The cavity of the water collecting container body is provided with an inner container at the upper part, so that the stored water in the cavity of the water collecting container body is divided into two parts. A plurality of horizontal water permeation pipes are arranged in the middle part of the side wall of the water collecting container body, the inlets of the water permeation pipes are connected with the permeation water outlets at the bottom of the inner container, so that the water in the inner container can be permeated into the soil at the distal end through the water permeation pipes, the irrigation area of a single water irrigator is expanded, and the irrigation uniformity is improved.

[0022] 3. The buried container type water irrigator of the present application is designed with the functions of reducing and filtering sand. The sidewall of the transition section of the water collecting container cover has a certain angle with the horizontal plane, so that the surface water flow deposits the bed load contained in the bottom of the water collecting container in the transition section before entering the body of the water collecting container, thus reducing the sand; the water collecting container is provided with a sand filtering inner container, so that the suspended sediment in the water flow entering the body of the water collecting container is filtered and left in the sand filtering inner container, and only the clear water is allowed to seep through the sand filtering inner container and enter the body of the water collecting container; the body of the water collecting container is wrapped with a filter membrane sleeve, which prevents the fine particles in the soil outside the water collecting container from seeping back into the body of the water collecting container.

[0023] 4. The buried container type water irrigator of the present application is designed with the function of applying various water supply modes, which can be used for surface water supply irrigation, rainwater collection irrigation, and pipeline water supply irrigation. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the buried container type water irrigator of Example 1 in the front view.

[0025] Figure 2 is a structural schematic view of the body of the water collecting container of Example 1 in the front view.

[0026] Figure 3 is a structural schematic view of the body of the water collecting container of Example 1 in the top view.

[0027] Figure 4 is a structural schematic view of the cover of the water collecting container of Example 1 in the front view.

[0028] Figure 5 is a structural schematic view of the cooperation between the body of the water collecting container and the cover of the water collecting container of Example 1.

[0029] Figure 6 is a structural schematic view of the buried container type water irrigator of Example 2 in the front view.

[0030] Figure 7 is a structural schematic view of the buried container type water irrigator of Example 2 in the top view.

[0031] Figure 8 is a structural schematic view of the water permeable pipe connecting section of Example 2 in the front view.

[0032] Figure 9 is a structural schematic view of the water permeable pipe connecting section of Example 2 in the side view.

[0033] LEGEND:

[0034] 1. Water collection container body; 11. Screw-lock sinking tank; 12. Filter sand inner liner; 13. Reverse filter membrane sleeve; 14. Water supply port; 15. Rim; 2. Water collection container cover; 21. Transition section; 22. Water inlet section; 23. Water inlet; 24. Screw-lock; 3. Inner container; 31. Water storage chamber; 32. Water passage; 33. Permeable outlet; 34. Hook; 4. Permeable pipe; 41. Conical top cap; 42. Connecting section; 421. Socket end; 422. Spigot end; 423. Cut; a. Groove rim; b. Groove bottom. Detailed Implementation

[0035] To facilitate understanding of the present invention, the present invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of protection of the present invention is not limited to the following specific embodiments.

[0036] Example 1:

[0037] like Figures 1 to 4 As shown, the buried container-type water emitter of this embodiment includes a water collection container body 1 and a water collection container cover 2 for supplying surface water into the water collection container body 1. The water collection container body 1 is buried underground, and its sidewalls are permeable sidewall structures that allow internal water to permeate to the external soil. The sidewalls of the water collection container body 1 are inclined outwards along the direction from underground to the ground surface. The top of the water collection container body 1 has an opening, and the water collection container cover 2 covers the top opening of the water collection container body 1. Specifically, the water collection container body 1 of this embodiment has a frustum-shaped container structure with a small bottom diameter and a large top diameter. Its bottom is a water-impermeable structure, and its sidewalls are permeable sidewall structures, specifically a wire mesh structure. The holes in the wire mesh structure allow water to permeate outwards. The structure of the permeable sidewall is not limited to this; other structures or materials that allow water to permeate outwards can also be used. After rain or irrigation, the water accumulated in the irrigation ditches or rainwater collection ditches will flow from the water collection container cover 2 into the water collection container body 1. Since the side wall of the water collection container body 1 is inclined outward to form an inverted truncated cone structure, the water inside it will be more dispersed and fully permeate into the soil, so that the soil moisture body forms an ellipsoid that is shortened vertically and increased horizontally, which improves the uniformity of irrigation and is beneficial to the growth of medium and deep root crops.

[0038] In this embodiment, the side wall of the water collecting container cover 2 is inclined and contracted from bottom to top to the center, the water collecting container cover 2 includes a transition section 21 and a water inlet section 22 for the ground water to flow into the water collecting container body 1, the side wall of the water inlet section 22 is provided with a water inlet 23, the side wall of the transition section 21 has an angle β with the horizontal plane, the side wall of the water inlet section 22 has an angle γ with the horizontal plane, and γ>β. Specifically, the water collecting container cover 2 is a circular truncated cone structure, which is similar to a straw hat structure, that is, the lower part of the water collecting container cover 2 has a large diameter and the top part has a small diameter, the transition section 21 and the water inlet section 22 are connected as an integral structure, the top surface of the water inlet section 22 of the water collecting container cover 2 is in a closed state, and the side surface is provided with a plurality of grid-shaped water inlets 23, when the ground ditch is irrigated or the rainwater is collected for supplemental irrigation, the water can flow into the irrigator from the water inlets 23 and be stored and infiltrated in the water collecting container body 1.

[0039] The angle β between the side wall of the transition section 21 and the horizontal plane is 5°-30°, and in this embodiment, the angle β is specifically 20°. When the rainwater is collected for irrigation or the ground is irrigated, the water flow has relatively coarse particle sediment (bed load sediment) at the bottom, in order to prevent the sediment from entering the water collecting container body 1, the transition section 21 is arranged as a circular truncated cone, and the generatrix of the circular truncated cone has a certain angle with the horizontal plane, so as to block the bed load sediment at the bottom of the water flow from moving by the way of bed load and entering the water collecting container body 1.

[0040] The angle γ between the side wall of the water inlet section 22 and the horizontal plane is <85°, and in this embodiment, the angle γ is specifically 80°. When the rainwater is collected for irrigation or the ground is irrigated, the surface of the water flow has straw or other floating objects, in order to prevent the floating objects from blocking the grid-shaped water inlets 23 on the water inlet section 22, the water inlet section 22 is arranged as a circular truncated cone, and the generatrix of the cone surface has a certain angle with the plumb line, so that when the water flow flows into the water inlets 23, the floating objects move upward along the generatrix of the cone surface, thereby avoiding the blocking of the grid-shaped water inlets 23.

[0041] The angle α between the side wall of the water collecting container body 1 and the horizontal plane is 70°<α<88°, and in this embodiment, the angle α is specifically 80°. When the upper part of the water collecting container body 1 is subjected to the treading force, the structure of the angle can disperse a part of the force to the surrounding soil body, thereby reducing the force of the water collecting container body 1 along the direction of the generatrix of the circular truncated cone, and being beneficial to reducing the material amount of the water collecting container body 1, facilitating the logistics transportation and reducing the transportation cost; in addition, the structure can make the water collecting container body 1 better adhere to the soil body, specifically, the side wall of the water collecting container body 1 is inclined, and when the water collecting container body 1 is installed, it is pressed downward in the soil pit, and completely adheres to the wall surface of the soil pit without gap, so that the preferential flow cannot be generated, thereby avoiding the water flow from moving downward to the deep soil layer under the action of gravity under the condition that there is a gap in the soil, resulting in that the planned irrigation soil layer cannot obtain the planned irrigation amount, and the problems of uneven irrigation and low irrigation quality are generated, that is, the generation of the preferential flow in the irrigation is effectively avoided, and the irrigation quality is reduced.

[0042] As Figure 5 shown, in this embodiment, the top of the water collector container body 1 is provided with a spin card sunken groove 11, and the bottom of the water collector cover 2 is provided with a spin card 24 that can be screwed into the spin card sunken groove 11. Specifically, the top of the water collector container body 1 is provided with a plurality of flanges 15 arranged along the top edge, and the plurality of flanges 15 are uniformly spaced. The space between the flanges 15 forms a spin card sunken groove 11, and the spin card 24 can sink from the space between the flanges 15. After rotation, the flanges 15 can limit the separation of the water collector cover 2. When installing, sink the spin card 24 of the water collector cover 2 into the spin card sunken groove 11 of the top of the water collector container body 1, and then rotate to complete the connection of the water collector container body 1 and the water collector cover 2. Specifically, when installing, align the spin card 24 with the spin card sunken groove 11, then place the water collector cover 2 on the water collector container body 1, at this time the spin card 24 sinks in the spin card sunken groove 11, then rotate the water collector cover 2 clockwise or counterclockwise to change the position of the spin card 24, at this time the water collector cover 2 and the water collector container body 1 are connected together, and the water collector cover 2 cannot be directly separated; when it is necessary to remove the water collector cover 2, rotate the water collector cover 2 counterclockwise or clockwise to change the position of the spin card 24 so that it is located at the spin card sunken groove 11, then lift the water collector cover 2 upward to achieve the separation of the two.

[0043] In this embodiment, the inner wall of the water collector container body 1 is provided with a sand filter inner container 12 for filtering sand, and the outer wall of the water collector container body 1 is wrapped with a filter membrane sleeve 13 for preventing fine particles from seeping back into the water collector container body 1. Specifically, the sand filter inner container 12 is made of flexible material and has a bag-like structure with an opening at the top. The upper opening of the sand filter inner container 12 is provided with a hanging rope, which can be hung on the flange of the water collector container body 1. The filter membrane sleeve 13 is wrapped on the permeable outer wall of the water collector container body 1 to prevent fine particles from seeping back into the water collector container body 1. By providing the sand filter inner container 12 and the filter membrane sleeve 13, the side wall of the water collector container body 1 can be effectively prevented from being blocked by sand or silt, which affects the permeation effect and reduces the frequency of cleaning the sand or silt. In addition, the filter membrane sleeve 13 can also protect the soil structure from deformation due to water movement. The sand filter inner container 12 is easy to disassemble and can be used repeatedly.

[0044] In this embodiment, the side wall of the water collector container body 1 is provided with a pipeline water supply port 14 that can be connected to an external water supply pipeline, and the pipeline water supply port 14 communicates with the inner cavity of the water collector container body 1. The pipeline water supply port 14 communicates with the water supply pipeline, and water can be directly supplied into the water collector container body 1 through the water supply pipeline when the rainfall is small.

[0045] The working principle of the embodiment is as follows: the irrigation device of the embodiment is a fixed field engineering, which is arranged in a field irrigation ditch or a rainwater collection ditch. The water collecting container body 1 is buried underground at the bottom b of the field irrigation ditch or the rainwater collection ditch, and the water collecting container cover 2 is arranged above the water collecting container body 1 and on the ground, but the top of the water collecting container cover 2 is lower than the edge a of the field irrigation ditch or the rainwater collection ditch. The irrigation device is different from general irrigation devices in that it is a temporary field engineering and movable. When the pipe water supply (clean water) irrigation is used, the water supply pipe is connected with the pipe water supply port 14, the water flow enters the water collecting container body 1, the side wall of the water collecting container body 1 is permeable, the water flow passes through the side wall and the outer reverse filter membrane sleeve 13 to enter the soil, and soil water is formed for the root system to absorb and use.

[0046] When the ground irrigation water supply or rainwater collection is used, the water flow flows from the field irrigation ditch or the rainwater collection ditch, passes through the transition section 21 of the water collecting container cover 2 with a reverse slope, and deposits the push load of the coarse particles at the bottom of the water flow. The water flow containing the fine particle sediment (suspended sediment) enters the water collecting container body 1 through the grid-shaped water inlet port 23 on the water inlet section 22. The sand filtering inner container 12 is arranged in the water collecting container body 1. The upper opening of the sand filtering inner container 12 (made of flexible material and in the form of a bag) is open and the mouth rope is hung on the mouth edge 15 of the permeable circular table cone container. The water flow entering the water collecting container body 1 is stored in the sand filtering inner container 12. The water seeps through the sand filtering inner container and enters the soil through the permeable side wall of the water collecting container body 1 and the reverse filter membrane sleeve 13 to form soil water for the root system to absorb and use. The fine particle sediment is stored in the sand filtering inner container 12.

[0047] When the sand filtering inner container 12 contains too much sediment, the water flow seepage and storage in the water collecting container body 1 will be affected, and the sediment in the sand filtering inner container 12 needs to be removed. The sediment in the sand filtering inner container 12 can be removed by rotating the water collecting container cover 2 to make the rotating clamp 24 sink into the rotating clamp sinking groove 11 on the upper opening of the water collecting container body 1, moving the water collecting container cover 2 upward, loosening the mouth rope of the sand filtering inner container 12, taking out the sand filtering inner container 12 from the water collecting container body 1, and turning over the sand filtering inner container 12 to pour out the sediment in the sand filtering inner container 12. After the sediment in the sand filtering inner container 12 is removed, the sand filtering inner container 12 can be reinstalled in the water collecting container body 1, and the sand filtering inner container 12 can be repeatedly used.

[0048] Embodiment 2:

[0049] The embodiment is basically the same as embodiment 1, and the main difference is that Figure 6 and Figure 7As shown, in the embodiment, the water irrigator further comprises a content container 3 and a plurality of water permeable pipes 4. The content container 3 is arranged at the upper portion of the inner cavity of the water collecting container body 1. The content container 3 has a water storage cavity 31. The content container 3 is provided with a water passing channel 32 for allowing the surface water to directly flow into the bottom of the water collecting container body 1. The bottom of the content container 3 is provided with a plurality of water permeable outlets 33 for supplying water to the water permeable pipes 4. The water permeable pipes 4 are inserted into the soil around the water irrigator. One end of the water permeable pipes 4 is connected to the content container 3 through the water permeable outlets 33. Specifically, the content container 3 is arranged at the middle upper portion of the inner cavity of the water collecting container body 1. The content container 3 is a ring-shaped container with an open upper portion. The outer dimension of the content container 3 is consistent with the inner dimension of the upper portion of the water collecting container body 1. The upper edge of the content container 3 is provided with a hook 34. The hook 34 is hung on the rotating and clamping sinking position of the water collecting container body 1 to fix the content container 3. That is, the content container 3 forms an upper water storage cavity 31 in the water collecting container body 1. Since the content container 25 has a certain height, the bottom of the content container 25 is located at the middle portion of the water collecting container body 1. The corresponding position of the side wall of the water collecting container body 1 is provided with a hole for allowing the water permeable pipes 4 to pass through. That is, the water permeable pipes 4 are inserted into the soil around the middle portion of the side wall of the water collecting container body 1. The water permeable pipes 4 can be arranged in a plurality of radial forms according to the axis of the water collecting container body 1. The length of the water permeable pipes 4 can be selected according to the irrigation range requirement. In the embodiment, four water permeable pipes 4 are arranged around the axis of the water collecting container body 1. In other embodiments, the number and arrangement of the water permeable pipes 4 can be increased or decreased according to the actual requirement to adjust the shape of the soil wetting body on the horizontal plane and form an irrigation range similar to a full circle or a fan shape.

[0050] In the embodiment, the water permeable pipes 4 are horizontally arranged. In other embodiments, the water permeable pipes 4 are slightly lower near one side of the water collecting container body 1. The purpose is that when there is a very fine soil particle back seepage in the water permeable pipes 4, the water level of the content container 3 can gradually decrease during the irrigation ending process. The very fine particle mud and sand can be carried out with the water flow back in the water permeable pipes 4. The water permeable outlets 33 at the connection between the content container 3 and the water collecting container body 1 can clean the mud and sand.

[0051] In the embodiment, in order to allow the surface water to flow into the water storage cavity 31 of the content container 3 and the bottom of the water collecting container body 1, a vertical circular through hole is arranged at the central position of the content container 3 to form a water passing channel 32. After the surface water flows from the water collecting container cover 2, part of the surface water directly falls into the water storage cavity 31 of the content container 3. The other part of the surface water enters the water passing channel 32 and then falls into the bottom of the water collecting container body 1. In order to filter the mud and sand in the surface water, the flexible material sand filtering inner container 12 of the embodiment is laid from the upper portion of the content container 3 and through the water passing channel 32 (vertical circular through hole) to the lower portion of the water collecting container body 1. At this time, the sand filtering inner container 12 can effectively filter the mud and sand in the flowing water.

[0052] In this embodiment, the water seepage pipe 4 includes a conical top cap 41 inserted in the outer soil around the water distributor and a plurality of connecting segments 42 connected in sequence to form a connecting pipe. The connecting segments 42 are connected in a socket and spigot manner, and the socket and spigot connection part is provided with an annular water seepage gap. One end of the connecting pipe is connected to the conical top cap 41, and the other end is connected to the water storage cavity 31 of the inner container 3 through the water seepage outlet 33. The conical top cap 41 of the water seepage pipe 4 is located at the outermost side, and the plurality of connecting segments 42 are short pipes. The conical top cap 41 and the adjacent connecting segments 42 are connected in a socket and spigot manner, and the subsequent connecting segments 42 are also connected in a socket and spigot manner. The socket and spigot connection part is provided with an annular water seepage gap. The innermost connecting segment 42 is in communication with the water seepage outlet 33 of the water storage cavity 31 of the inner container 3. The socket and spigot connection manner can effectively expand the horizontal water seepage effect, further reduce the influence of gravity compared with water seepage through the water storage container body 1, improve the horizontal coverage of irrigation, and achieve better irrigation effect.

[0053] As shown in Figure 8 and Figure 9 In this embodiment, one end of the connecting segment 42 is a socket end 421, and the other end is a spigot end 422. The socket end 421 faces the direction of the water storage container body 1, and the spigot end 422 faces the outer far end. The spigot end 422 of the connecting segment 42 is provided with a plurality of slits 423 along the generatrix direction of the connecting segment 42. The length of the slit 423 is equal to the socket length. Specifically, the diameter of the socket end 421 of the connecting segment 42 gradually increases from inside to outside, that is, the socket end 421 forms an outwardly expanding horn shape. The socket length is the length of the outwardly expanding section. The outer wall diameter of the spigot end 422 of the connecting segment 42 gradually decreases from inside to outside. When the spigot end 422 of one connecting segment 42 is completely inserted into the socket end 421 of another connecting segment 42, the contraction section of the spigot end 422 can be inserted deep into the socket end 421. Since the diameter of the contraction section decreases, it can further penetrate beyond the socket length. The length of the slit 423 is greater than the length of the contraction section and equal to the socket length. After insertion, part of the slit 423 penetrates into the connecting segment 42, and part of the slit 423 cooperates with the outwardly expanding section of the socket end 421 to form an annular water seepage gap at the socket and spigot connection part. The annular water seepage gap cooperates with the extended water seepage pipe 4 to achieve better water seepage irrigation effect.

[0054] In this embodiment, the pipeline water supply port 14 is in communication with the water storage cavity 31 of the inner container 3 in the water storage container body 1. The pipeline water supply port 14 is in communication with the water supply pipeline. When the rainfall is small, water can be supplied to the inner container 3 through the water supply pipeline. When the inner container 3 is full, the water overflows into the water storage container body 1. After the water storage cavity 31 of the inner container 3 is filled with water, the water flows to the water seepage pipe 4.

[0055] The embodiment expands the horizontal wetting range of the root zone by setting the water infiltration pipe 4, increases the irrigation area of a single emitter, and the inner container 3 only supplies water to the water infiltration pipe 4, so that the amount of water directly infiltrated into the soil by the side wall of the water collecting container body 1 is reduced, the vertical length of the soil wetting body formed by the infiltration of the side wall of the water collecting container body 1 is shortened, and the water infiltration of the water collecting container body 1 cooperates with the inner container 3 and the water infiltration pipe 4 to make the soil in the underground root zone in the irrigation range more evenly wetted in the horizontal plane.

[0056] For the buried container type emitter of the foregoing embodiment, the height of the water collecting container body 1 is h, h = pH-h1, wherein H is the planned wetting layer depth of crops, i.e., the depth of the crop root layer, p is the water collecting container burial depth ratio, p is 0.40-0.55, and h1 is the ditch depth of the field water delivery ditch or the rainwater collecting ditch;

[0057] The bottom surface diameter of the water collecting container body 1 is D2, wherein V is the designed rainwater collection amount on the area controlled by the emitter (calculated by using the method of hydrology and according to the relevant standards such as rainwater collection irrigation and water and soil loss control), q is the rainfall retention coefficient, q is 0.6-0.9, and V1 is the retention volume of the field water delivery ditch or the rainwater collecting ditch in the control range of the emitter;

[0058] The diameter of the top opening of the water collecting container body 1 is D1, D1 = D2+2hcotα.

[0059] The above method can calculate the reasonable size of the buried container type emitter according to the characteristics of plants, irrigation requirements, field structure and other factors, so as to play the water storage effect of the buried container type emitter according to the actual situation, uniformly irrigate the underground root system of plants, ensure the best irrigation effect, and be beneficial to the rapid growth of plants. The size calculation of the emitters of the embodiments is shown in Table 1.

[0060] Table 1: Size table of emitters of embodiments (related parameters use data of Jincheng City, Shanxi Province: ten-year 24-hour rainfall collection design)

[0061]

[0062]

[0063] h, D1 and D2 in the above table are calculated values, for the convenience of construction and processing, two decimal places can be reserved as the values. In order to avoid excessive damage to the root system, the diameter of the top opening of the water collecting container body 1 is less than 0.4m, and the diameter of the bottom surface of the water collecting container body 1 is less than 0.3m. If the above calculation result does not meet this condition, the field engineering layout needs to be adjusted to increase V1, or the design standard needs to be reduced to reduce the designed rainwater collection V, and then D1 and D2 are recalculated until the above requirements are met.

[0064] The size of the emitter in each of the above embodiments comprehensively considers the type of plant, the field engineering layout and the expected average rainfall, etc., and can provide the best irrigation effect for the plant root system. Not only can it cooperate with the water delivery ditch to reduce the waste of rainwater, but also can form a targeted underground root system wet space, expand the irrigation control range, and improve the irrigation uniformity, thereby being beneficial to the rapid and healthy growth of the plant.

[0065] Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, by using the technical contents disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical solutions of the present application, shall fall within the scope of protection of the technical solutions of the present application.

Claims

1. A buried container-type water dispenser, characterized in that: The system includes a water collection container body (1) and a water collection container cover (2) for surface water to flow into the water collection container body (1). The water collection container body (1) is buried underground, and the side wall of the water collection container body (1) is a permeable side wall structure that allows internal water to permeate to the external soil. The side wall of the water collection container body (1) is inclined outward along the direction from underground to ground. The top of the water collection container body (1) is open, and the water collection container cover (2) covers the top opening of the water collection container body (1). The angle between the side wall of the water collection container body (1) and the horizontal plane is α, 70° < α < 80°; The water irrigator also includes an inner container (3) and several seepage pipes (4). The inner container (3) is located in the upper part of the inner cavity of the water collection container body (1). The inner container (3) has a water storage chamber (31) and a water passage (32) on the inner container (3) for the surface water to flow directly into the bottom of the water collection container body (1). The bottom of the inner container (3) is provided with several seepage outlets (33) for supplying water to the seepage pipes (4). The seepage pipes (4) are inserted into the soil around the water irrigator, and one end of the seepage pipes (4) is connected to the inner container (3) through the seepage outlets (33). The side wall of the water collection container cover (2) is inclined and tapered from bottom to top toward its center; The inner wall of the water collection container body (1) is provided with a filter sand liner (12) for filtering mud and sand, and the outer wall of the water collection container body (1) is wrapped with a reverse filter membrane sleeve (13) to prevent fine particles from seeping back into the water collection container body (1).

2. The buried container-type water dispenser according to claim 1, characterized in that: The seepage pipe (4) includes a conical cap (41) and several connecting segments (42). The conical cap (41) is inserted into the outer soil around the water injector. The several connecting segments (42) are connected in sequence to form a connecting pipe. The connection points of adjacent connecting segments (42) form an annular seepage seam. One end of the connecting pipe is connected to the conical cap (41), and the other end is connected to the inner container (3) through the seepage outlet (33).

3. The buried container-type water dispenser according to claim 1, characterized in that: The height of the water collection container body (1) is h, h = pH - h1, where H is the planned wetting layer depth of the crop, p is the burial depth ratio of the water collection container, p is 0.40 to 0.55, and h1 is the depth of the field water conveyance ditch or rainwater collection ditch. The bottom diameter of the water collection container body (1) is D2. Where V is the designed rainfall collection volume over the area controlled by the irrigation device, q is the rainfall retention coefficient, q is 0.6 to 0.9, and V1 is the retention volume of the field irrigation ditch or rainwater collection ditch within the control range of the irrigation device. The diameter of the top opening of the water collection container body (1) is D1, where D1 = D2 + 2hcotα.

4. The buried container-type water dispenser according to claim 1, characterized in that: The water collection container cover (2) includes a transition section (21) and an inlet section (22) for supplying surface water to flow into the water collection container body (1). The inlet section (22) has an inlet (23) on its side wall. The angle between the side wall of the transition section (21) and the horizontal plane is β, and the angle between the side wall of the inlet section (22) and the horizontal plane is γ, where γ > β. The angle β between the side wall of the transition section (21) and the horizontal plane is 5° to 30°, and the angle γ between the side wall of the inlet section (22) and the horizontal plane is < 85°.

5. The underground container-type water dispenser according to any one of claims 1 to 3, characterized in that: The top opening of the water collection container body (1) is provided with a screw-in groove (11), and the bottom of the water collection container cover (2) is provided with a screw-in groove (24) that can be screwed into the screw-in groove (11).

6. The underground container-type water dispenser according to any one of claims 1 to 3, characterized in that: The water collection container body (1) has a water supply port (14) on the upper side wall that can be connected to an external water supply pipe, and the water supply port (14) is connected to the inner cavity of the water collection container body (1).

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