CN112493095B - Semi-arid region dew and rainwater are jointly collected irrigation system - Google Patents

Abstract

The invention discloses a dew and rainwater combined collection and irrigation system in semi-arid areas, comprising a collection box and an irrigation mechanism arranged in the lower part of the front of the collection box. It is characterized in that supports are fixedly connected between two sides of the bottom of the inner wall of the collection box. The top of the support plate is provided with a filter mechanism, and the top of the collection box is provided with a dew water collection mechanism. The invention relates to the technical field of dew and rainwater collection. In the semi-arid area dew and rainwater combined collection irrigation system, a collection tray is fixedly connected to the outer surface of the top of the support rod, and the inner wall of the collection tray is provided with pleated grooves. The three collection trays and the collection box jointly collect the dew and rainwater. The collection rate is higher. The collection tray is provided with an insulating layer and a waterproof layer to prevent the loss of the collected water and improve the efficiency of dew collection. At the same time, the water pump transports the collected dew to the planting area to irrigate the vegetation, which is easy to operate and does not require waste. A lot of manpower and cost, suitable for planting in semi-arid areas.

Description

A dew and rainwater combined collection irrigation system in semi-arid area

technical field

The invention relates to the technical field of dew collection, in particular to a dew and rainwater combined collection irrigation system in semi-arid areas.

Background technique

Semi-arid area refers to a climate type area with an average annual precipitation of 350-500 mm, and its agriculture is called "dryland agriculture". Due to the shortage of water resources, in these areas, the vegetation type is usually drought-tolerant annual plants with short growth cycles, or some shrubs and trees are difficult to survive due to the problem of water resources. In addition, in semi-arid areas, due to the sparse vegetation and severe wind erosion, sandy weather often occurs, affecting agricultural production and residents' production and life. Therefore, in order to alleviate such problems and maintain the ecological environment in semi-arid areas, we must first solve the problem of water resources.

In recent years, people's awareness of protection of water resources and water environment has gradually increased. Unconventional water such as rainwater, dew and recycled sewage has become a hot spot of extensive research. The leading industry in semi-arid areas is often agriculture. Alleviating the shortage of water resources in semi-arid areas is of great significance to the realization of farmers' poverty alleviation and income increase. However, the current problem is that when irrigation is required for agricultural production and ecological protection, long-distance water needs to be diverted. Evaporation and seepage on the way will waste a lot of water, and consume a lot of manpower and time. The operation is cumbersome and increases the cost of irrigation. Not conducive to planting in semi-arid areas.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a dew and rainwater combined collection and irrigation system in semi-arid areas, which solves the need for long-distance water diversion during agricultural production and ecological protection, and wastes a large amount of water by evaporation and leakage on the way. It consumes a lot of manpower and time, and the operation is cumbersome, which increases the cost of irrigation, is not conducive to the problem of planting in semi-arid areas, and develops new available water sources.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a semi-arid area dew and rainwater combined collection irrigation system, comprising a collection box and an irrigation mechanism arranged in the lower part in front of the collection box, it is characterized in that: the inner wall of the collection box A support plate is fixedly connected between two sides of the bottom, and a filter mechanism is arranged on the top of the support plate, and a dew collecting mechanism is arranged on the top of the collection box.

The dew collecting mechanism includes a support rod, the bottom end of the support rod is communicated with the top of the support plate, the outer surface of the top of the support rod is fixedly connected with a collection tray, and the inner wall of the collection tray is provided with a pleated groove, the The left side of the support rod and located at the bottom of the inner wall of the collection tray is provided with a water leakage hole, the support rod is a hollow tube structure, and both sides of the top of the collection box are fixedly connected with vertical plates, and the vertical plates are away from the side of the collection box. A mounting block is threadedly connected with the first screw, and one side of the mounting block is fixedly connected with the outer surface of the collecting tray.

Preferably, there are three collecting trays arranged in sequence from bottom to top, the bottom of the mounting block is provided with a mounting groove that is adapted to the vertical plate, and the threaded end of the first screw penetrates the mounting block and the vertical plate in turn and passes through the vertical plate. Extends to the outside of the riser.

Preferably, the collection tray includes a base layer, the top of the base layer is sprayed with an insulating layer, and the top of the heat insulating layer is sprayed with a waterproof layer.

Preferably, the irrigation mechanism includes a water pump, the water outlet of the water pump is connected with a drain pipe, the right side of the drain pipe is connected with a first water supply pipe, and the end of the first water supply pipe away from the drain pipe is connected through a connecting mechanism There is a second water supply pipe, and both the bottom of the first water supply pipe and the bottom of the second water supply pipe are connected with a water outlet mechanism.

Preferably, the connection mechanism includes a first flange and a second flange, the left side of the first flange is fixedly connected with the right end of the first water supply pipe, and the right side of the second flange is It is fixedly connected with the left end of the second water supply pipe, and the right side of the first flange is connected with the left side of the second flange by a second screw thread.

Preferably, the threaded end of the second screw penetrates the first flange and the second flange in sequence and extends to the outside of the second flange, and the second screw extends to the outer end of the second flange. The surface is screwed with nuts, the right side of the first flange is fixedly connected with a sealing ring, and the left side of the second flange is provided with a sealing groove matching the sealing ring.

Preferably, the water outlet mechanism includes a water outlet pipe, the top of the water outlet pipe is communicated with the bottom of the first water supply pipe, the end of the water outlet pipe away from the first water supply pipe is fixedly connected with an irrigation nozzle, and the surrounding of the irrigation nozzle A through hole is opened.

Preferably, the filtering mechanism includes a fine sand bag, the bottom of the fine sand bag is movably connected to the top of the support plate, the top of the fine sand bag is movably connected with a medium sand bag, and the top of the medium sand bag is movably connected with a For the coarse sand bag, both sides of the support plate are provided with through grooves, the periphery of the top of the collection box is fixedly connected with a primary filter screen, and both sides of the top of the collection box are provided with water inlets.

Preferably, an inner box is fixedly connected to the top of the inner wall of the collection box and located below the water inlet, and the tops of both sides of the inner box are provided with water outlet holes, and the bottom ends of the support rods pass through the collection box, the inner box and the The filter mechanism extends to the outside of the filter mechanism, one end of the support rod extending to the outside of the filter mechanism is communicated with the top of the support plate, the top of the support rod is fixedly connected with a lightning rod, and the surface of the top of the support rod is fixedly connected with a A solar panel is fixedly connected with a battery at the bottom of the solar panel, and a wire is fixedly connected at the bottom of the left side of the lightning rod.

(3) Beneficial effects

The invention provides a dew and rainwater combined collection irrigation system in semi-arid areas. Compared with the prior art, it has the following beneficial effects:

(1), the dew and rainwater combined collection irrigation system in the semi-arid area includes a support rod through the dew collection mechanism, the bottom end of the support rod is communicated with the top of the support plate, and the outer surface of the top of the support rod is fixedly connected with a collection plate, and The inner wall of the collection tray is provided with a pleated groove, and the left side of the support rod and the bottom of the inner wall of the collection tray are provided with a water leakage hole. The support rod is a hollow tube structure. The top of the layer is sprayed with a waterproof layer, and the dew and rainwater are jointly collected through three collection trays and collection boxes, and the collection rate is higher. At the same time, the pump transports the collected dew and rainwater to the planting area to irrigate the vegetation. The operation is simple and does not require a lot of manpower and cost. It is suitable for planting in semi-arid areas.

(2) In this semi-arid area dew and rainwater combined collection and irrigation system, the bottom of the installation block is provided with an installation groove that is adapted to the vertical plate, and the threaded end of the first screw penetrates the installation block and the vertical plate in turn and extends to the vertical Outside the plate, the end of the first water supply pipe that is far away from the drain pipe is connected with a second water supply pipe through a connecting mechanism, and the connecting mechanism includes a first flange plate and a second flange plate, and the right side of the first flange plate is connected to the second method. The left side of the flange is threadedly connected by a second screw. The second screw extends to the surface of the outer end of the second flange and is connected with a nut. The right side of the first flange is fixedly connected with a sealing ring. The second method The left side of the blue plate is provided with a sealing groove matching the sealing ring, which can disassemble the collecting plate and the water supply pipe, reduce its floor space, facilitate the transportation of the device, and also facilitate the adjustment of the water supply pipe according to the area of the planting area. It can be extended and used more conveniently.

(3), this semi-arid area dew and rainwater combined collection irrigation system, including the water outlet pipe through the water outlet mechanism, the top of the water outlet pipe is communicated with the bottom of the first water supply pipe, and the end of the water outlet pipe away from the first water supply pipe is fixedly connected with irrigation The sprinkler head has through holes around the irrigation sprinkler head. During irrigation, drip irrigation or infiltration irrigation can be carried out through the outlet pipe and the irrigation sprinkler head. During drip irrigation, the irrigation sprinkler head does not need to be buried underground. Flexible use and water saving.

Description of drawings

Fig. 1 is the perspective view of the structure of the present invention;

2 is a partial front view of the support rod structure of the present invention;

Fig. 3 is the sectional view of the collecting box structure of the present invention;

Fig. 4 is the side sectional view of the mounting block structure of the present invention;

Fig. 5 is the sectional view of the collecting tray structure of the present invention;

Fig. 6 is the sectional view of the structure of the first water supply pipe and the second water supply pipe of the present invention;

7 is a cross-sectional view of the water outlet pipe structure of the present invention.

In the figure, 1 collection tank, 2 irrigation mechanism, 21 water pump, 22 drain pipe, 23 first water supply pipe, 24 connecting mechanism, 241 first flange, 242 second flange, 243 second screw, 244 nut, 245 sealing ring, 246 sealing groove, 25 second water supply pipe, 26 water outlet mechanism, 261 water outlet pipe, 262 irrigation sprinkler, 263 through hole, 3 support plate, 4 dew collecting mechanism, 41 support rod, 43 collection plate, 431 base layer, 432 heat insulation layer, 433 waterproof layer, 44 pleated groove, 45 water leakage hole, 46 vertical plate, 47 first screw, 48 installation block, 5 installation groove, 6 filter mechanism, 61 fine sand bag, 62 medium sand bag, 63 coarse sand bag Sand bags, 7 channels, 8 first-level filters, 9 water inlets, 10 inner boxes, 11 water outlets, 12 lightning rods, 13 solar panels, 14 batteries, and 15 wires.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-6, the embodiment of the present invention provides a technical solution: a semi-arid area dew and rainwater combined collection irrigation system, including a collection box 1 and an irrigation mechanism 2 arranged in the lower part of the front of the collection box 1, the collection box 1. Buried in the ground, laying film on the surface, and the buried position is lower than the surrounding terrain, which is convenient for rainwater collection. At the same time, the outer periphery of the top of the collection box 1 is provided with a horizontally extending perimeter. When collecting rainwater, press the film to facilitate the rainwater to enter the collection. Box 1, a support plate 3 is fixedly connected between the two sides of the bottom of the inner wall of the collection box 1, the support plate 3 is used to support the sand bag structure, and the top of the support plate 3 is provided with a filter mechanism 6, and the top of the collection box 1 is provided with dew Collection agency 4.

In the embodiment of the present invention, the dew collecting mechanism 4 includes a support rod 41, the bottom end of the support rod 41 is communicated with the top of the support plate 3, and the outer surface of the top of the support rod 41 is fixedly connected with a collection tray 43, and the collection tray 43 is a mushroom The shape of the cap, the inner pleated structure can increase the contact area with the air, and the pleated groove 44 facilitates the flow of the water body. The size decreases layer by layer from bottom to top, and at the same time, the upper two layers of collection trays 43 are also provided with outer pleats, the dew collected by the outer pleats drips onto the next layer of collection tray 43, and the inner wall of the collection tray 43 is provided with pleated grooves 44, The left side of the support rod 41 and located at the bottom of the inner wall of the collection tray 43 is provided with a water leakage hole 45, each layer of the collection tray 43 is provided with a water leakage hole 45, and a layer of gauze can also be set at the water leakage hole 45, which can prevent daily life. A small amount of dust falling into the collection tray with the wind and other weather enters the collection box 1 with dew, the support rod 41 is a hollow tube structure, and the two sides of the top of the collection box 1 are fixedly connected with a vertical plate 46, the vertical plate 46 and the installation block 48. The mounting block 48 is threadedly connected to the side of the vertical plate 46 away from the collecting box 1 through the first screw 47, and one side of the mounting block 48 is fixedly connected to the outer surface of the collecting tray 43. .

In the embodiment of the present invention, three collection trays 43 are arranged in sequence from bottom to top, the bottom of the mounting block 48 is provided with a mounting groove 5 that is adapted to the vertical plate 46, and the threaded end of the first screw 47 penetrates through the mounting block 48 and the vertical plate 46 in sequence. The riser 46 extends to the outside of the riser 46 .

In the embodiment of the present invention, the collection tray 43 includes a base layer 431, and the top of the base layer 431 is sprayed with an insulating layer 432. The insulating layer 432 is made of polyurethane material. The top of the heat insulating layer 432 is sprayed with a waterproof layer 433, and the waterproof layer 433 is made of polyvinyl chloride resin material, which has good waterproofness and prevents the collected dew from infiltration and loss.

In the embodiment of the present invention, the irrigation mechanism 2 includes a water pump 21. The water pump 21 is controlled by an external switch and is connected to the battery 14 through a wire. The water supply pipe 23, one end of the first water supply pipe 23 away from the drain pipe 22 is connected with the second water supply pipe 25 through the connecting mechanism 24, the setting of the connecting mechanism 24 is convenient for the installation and disassembly of the first water supply pipe 23 and the second water supply pipe 25 , convenient transportation, the bottom of the first water supply pipe 23 and the bottom of the second water supply pipe 25 are connected with a water outlet mechanism 26 .

In the embodiment of the present invention, the connection mechanism 24 includes a first flange 241 and a second flange 242. The left side of the first flange 241 is fixedly connected to the right end of the first water supply pipe 23, and the second flange 242 The right side of the first flange 241 and the left side of the second flange 242 are threadedly connected by the second screw 243.

In the embodiment of the present invention, the threaded end of the second screw 243 penetrates the first flange 241 and the second flange 242 in sequence and extends to the outside of the second flange 242, and the second screw 243 extends to the second flange A nut 244 is threadedly connected to the surface of the outer end of the disk 242, and a sealing ring 245 is fixedly connected to the right side of the first flange 241. The setting of the sealing ring 245 improves the distance between the first water supply pipe 23 and the second water supply pipe 25. For airtightness, the left side of the second flange 242 is provided with a sealing groove 246 which is matched with the sealing ring 245 .

In the embodiment of the present invention, the water outlet mechanism 26 includes a water outlet pipe 261 . The water outlet pipe 261 may be an aluminum alloy pipe. The top of the water outlet pipe 261 communicates with the bottom of the first water supply pipe 23 . The irrigation sprinkler 262 is fixedly connected, and through holes 263 are opened around the irrigation sprinkler 262. The through holes 263 are provided with a plurality of through holes. During irrigation, the irrigation sprinkler 262 can be used for drip irrigation or infiltration irrigation, and the irrigation sprinkler 262 does not need to be buried during drip irrigation. Underground, the irrigation sprinkler 262 is buried underground during infiltration irrigation, and a layer of geotextile is wrapped at the same time to prevent clogging.

In the embodiment of the present invention, the filter mechanism 6 includes a fine sand bag 61, the bottom of the fine sand bag is movably connected to the top of the support plate 3, the top of the fine sand bag 61 is movably connected with a medium sand bag 62, and the top of the medium sand bag 62 is movably connected A coarse sand bag 63 is movably connected, and three different sand bags are made of three grades of sand packed into woven bags. The aperture of each woven bag is not larger than the particle size of the loaded sand. The three-layer sand bags are used for filtration. The sediment in the collected rainwater can be filtered step by step by setting up three layers, and the sand is packed in woven bags to prevent the mixing of various sands, and at the same time, it is convenient for cleaning and cleaning in the later maintenance. The periphery of the top of the collection box 1 is fixedly connected with a primary filter 8. The primary filter 8 is used to filter large sundries such as leaves that flow together with rainwater. The top of the collection box 1 is provided with water inlets 9 on both sides.

In the embodiment of the present invention, an inner box 10 is fixedly connected to the top of the inner wall of the collection box 1 and located below the water inlet 9, and the front surfaces of the collection box 1 and the inner box 10 are connected with sealing plates through bolts and threads. When there are too many, the device can be dug out from the ground, and the two sealing plates can be disassembled to facilitate the cleaning of the collection box 1 and the inner box 10, and the tops of the two sides of the inner box 10 are provided with water outlet holes 11, and the water outlet holes 11 are automatically The bottom end of the support rod 41 runs through the collection box 1, the inner box 10 and the filter mechanism 6 in sequence and extends to the outside of the filter mechanism 6, and the support rod 41 extends to one end outside the filter mechanism 6 and the support plate. The top of 3 is connected, the top of the support rod 41 is fixedly connected with the lightning rod 12, the surface of the top of the support rod 41 is fixedly connected with the solar panel 13, and the bottom of the solar panel 13 is fixedly connected with the battery 14, and the battery 14 supplies power for the water pump, A wire 15 is fixedly connected to the bottom of the left side of the lightning rod 12 .

When working, when the temperature drops at night, the water vapor in the air adheres to the collecting plate 43, and the water vapor condenses into dew, and the dew collected on the collecting plate 43 enters the support rod 41 through the leak hole 45, and follows the support The rod 41 flows into the collection box 1, the pleated structure inside the collection tray 43 can increase the contact area with the air, the pleated groove 44 facilitates the flow of water, further increases the contact area, and collects more rainwater and dew, the collection tray 43 is Three layers, the size of the collecting tray 43 decreases layer by layer from bottom to top, the bottom collecting tray 43 has only inner pleats, and the upper two layers of collecting trays 43 are also provided with outer pleats, which further increases the contact area, and the outer pleats collect The dew drips onto the collection tray 43 of the next layer, and the collection rate is higher. The heat insulation layer 432 on the collection tray 43 prevents the temperature of the collection tray 43 from being too high, and cooperates with the setting of the waterproof layer 433 to prevent the loss of collected water, and then starts the water pump. 21. Open the valve of the drain pipe 22, the drain pipe 22 supplies water to the first water supply pipe 23 and the second water supply pipe 25, and the first water supply pipe 23 and the second water supply pipe 25 pass the water outlet pipe 261 and the irrigation sprinkler The roots of the vegetation are infiltrated. During infiltration irrigation, the irrigation nozzles 262 are buried in the ground, and a layer of geotextile is wrapped to prevent clogging, or drip irrigation is used. A second screw is passed between the first water supply pipe 23 and the second water supply pipe 25 243 is connected with the nut 244. When connecting, the sealing ring 245 on the first flange 241 enters the sealing groove 246 on the second flange 242 to improve the sealing between the first water supply pipe 23 and the second water supply pipe 25. When transporting, unscrew the first screw 47 on the mounting block 48 next to the collecting tray 43, and the collecting tray 43 can be disassembled for easy transportation. It is lower than the surrounding terrain to facilitate the collection of rainwater. On the outer edge of the collection box 1, a first-level filter screen 8 is arranged vertically upward. The first-level filter screen 8 is used to filter large debris such as leaves that flow with the rainwater. After the inner box 10, water is discharged through the water outlet holes 11 on both sides, and the sediment is deposited at the bottom of the inner box 10, and then the rainwater passes through the coarse sand bag 63, the medium sand bag 62 and the fine sand bag 61 in turn. The sediment in the rainwater is filtered step by step to prevent clogging of the irrigation mechanism 2. When cleaning the sediment at the bottom of the inner box 10, just open the collection box 1 and the sealing plate on the front of the inner box 10. At the same time, the solar panel 13 absorbs the The light energy is converted into electric energy and stored in the battery 14 to supply power to the water pump 21. The installation of the lightning rod 12 improves the safety of the device, and the wire 15 of the lightning rod 12 is grounded.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides an irrigation system is jointly collected to semi-arid district dew and rainwater, includes collecting box (1) and sets up in the irrigation mechanism (2) of collecting box (1) the place ahead lower part, its characterized in that: the method comprises the following steps that a collection box (1) is buried underground, a support plate (3) is fixedly connected between two sides of the bottom of the inner wall of the collection box (1), a filtering mechanism (6) is arranged at the top of the support plate (3), and a dew collection mechanism (4) is arranged at the top of the collection box (1);

the dew collection mechanism (4) comprises a support rod (41), the bottom end of the support rod (41) is communicated with the top of the support plate (3), a collection disc (43) is fixedly connected to the outer surface of the top of the support rod (41), a pleat groove (44) is formed in the inner wall of the collection disc (43), a water leakage hole (45) is formed in the left side of the support rod (41) and the bottom of the inner wall of the collection disc (43), the support rod (41) is of a hollow tube structure, vertical plates (46) are fixedly connected to the two sides of the top of the collection box (1), one sides, far away from the collection box (1), of the vertical plates (46) are in threaded connection with mounting blocks (48) through first screws (47), and one side of the mounting blocks (48) is fixedly connected with the outer surface of the collection disc (43);

the three collecting trays (43) are sequentially arranged from bottom to top, the sizes of the collecting trays (43) are reduced layer by layer from bottom to top, the collecting tray (43) at the bottom is only provided with inner folds, the collecting trays (43) at the upper two layers are also provided with outer folds, each collecting tray (43) comprises a base layer (431), a heat insulation layer (432) is sprayed on the top of each base layer (431), and a waterproof layer (433) is sprayed on the top of each heat insulation layer (432);

the filtering mechanism (6) comprises a fine sand bag (61), the bottom of the fine sand bag is movably connected with the top of the supporting plate (3), the top of the fine sand bag (61) is movably connected with a medium sand bag (62), the top of the medium sand bag (62) is movably connected with a coarse sand bag (63), through grooves (7) are formed in two sides of the supporting plate (3), a primary filter screen (8) is fixedly connected to the periphery of the top of the collecting box (1), water inlets (9) are formed in two sides of the top of the collecting box (1), an inner box (10) is fixedly connected to the top of the inner wall of the collecting box (1) and is positioned below the water inlets (9), water outlets (11) are formed in the tops of two sides of the inner box (10), and the bottom end of the supporting rod (41) sequentially penetrates through the collecting box (1), the inner box (10) and the filtering mechanism (6) and extends to the outside of the filtering mechanism (6), the utility model discloses a solar energy filter, including bracing piece (41), bracing piece (41) extend to the outside one end of filter mechanism (6) and be linked together with the top of backup pad (3), the top fixedly connected with lightning rod (12) of bracing piece (41), the fixed surface at bracing piece (41) top is connected with solar cell panel (13), and the bottom fixedly connected with battery (14) of solar cell panel (13), the left bottom fixedly connected with wire (15) of lightning rod (12).

2. The combined collection and irrigation system for dew and rain water in semiarid regions according to claim 1, wherein: the bottom of installation piece (48) is seted up with riser (46) looks adaptation mounting groove (5), the screw thread end of first screw (47) runs through installation piece (48) and riser (46) in proper order and extends to the outside of riser (46).

3. The combined collection and irrigation system for dew and rain water in semiarid regions according to claim 1, wherein: the irrigation mechanism (2) comprises a water pump (21), a water outlet of the water pump (21) is communicated with a water drainage pipe (22), the right side of the water drainage pipe (22) is communicated with a first water supply pipe (23), one end, far away from the water drainage pipe (22), of the first water supply pipe (23) is communicated with a second water supply pipe (25) through a connecting mechanism (24), and the bottom of the first water supply pipe (23) and the bottom of the second water supply pipe (25) are both communicated with a water outlet mechanism (26).

4. The semi-arid region dew and rainwater combined collection irrigation system according to claim 3, wherein: the connecting mechanism (24) comprises a first flange plate (241) and a second flange plate (242), the left side of the first flange plate (241) is fixedly connected with the right end of the first water supply pipe (23), the right side of the second flange plate (242) is fixedly connected with the left end of the second water supply pipe (25), and the right side of the first flange plate (241) is in threaded connection with the left side of the second flange plate (242) through a second screw (243).

5. The combined collection and irrigation system for dew and rain water in semiarid regions according to claim 4, wherein: the screw thread end of second screw (243) runs through first ring flange (241) and second ring flange (242) in proper order and extends to the outside of second ring flange (242), the surperficial threaded connection that second screw (243) extended to the outside one end of second ring flange (242) has nut (244), the right side fixedly connected with sealing washer (245) of first ring flange (241), seal groove (246) with sealing washer (245) looks adaptation are seted up to the left side of second ring flange (242).

6. The semi-arid region dew and rainwater combined collection irrigation system according to claim 3, wherein: the water outlet mechanism (26) comprises a water outlet pipe (261), the top end of the water outlet pipe (261) is communicated with the bottom of the first water supply pipe (23), one end, far away from the first water supply pipe (23), of the water outlet pipe (261) is fixedly connected with an irrigation spray head (262), and through holes (263) are formed in the periphery of the irrigation spray head (262).

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