Rainwater collecting and irrigating device and implementation method thereof

Abstract

The invention relates to the technical field of forest irrigation, and provides a rainwater collecting and irrigating device which comprises a rainwater collecting device, a rainwater filtering device, a water storage tank and an automatic sprinkling irrigation suite, the rainwater collecting device comprises an umbrella-shaped collector, and two semicircular first filtering layers are fixed through internal clamping grooves and used for collecting rainwater in a large area; the rainwater filtering device comprises a replaceable drawer type second filtering layer and a replaceable drawer type third filtering layer, and a storage tank is used for filtering rainwater and increasing water-soluble nutrients lost in soil; the automatic sprinkling irrigation suite comprises a capillary tube, a water sensor, an electromagnetic valve and a nozzle. The device can collect rainwater in a large area, store the rainwater through the filtering device, automatically detect the soil water shortage state to achieve automatic sprinkling irrigation, supplement water to drought trees in time, save water resources and reduce labor force.

Description

Technical Field

[0001] The invention relates to the technical field of forest irrigation, and in particular to a rainwater collection and irrigation device and an implementation method thereof. Background Art

[0002] Forest irrigation in arid and semi-arid areas mainly relies on natural rainfall. How to collect and utilize rainfall has become an urgent problem to be solved.

[0003] For example, the international patent with the international publication number WO2242140827A1 discloses a multifunctional rainwater collection device. It includes a sleeve surrounding the trunk of a garden tree, a foldable umbrella-shaped collector installed on the sleeve, and a water storage tank located below the foldable umbrella-shaped collector and used to store rainwater collected by the foldable umbrella-shaped collector; the foldable umbrella-shaped collector includes a collar slidably sleeved on the circumferential surface of the sleeve, an umbrella-shaped portion connected to the collar through a connecting rod, and the two ends of the connecting rod are respectively hinged to the collar and the umbrella-shaped portion, and is characterized in that: the top periphery of the foldable umbrella-shaped collector is structured with a flange, the foldable umbrella-shaped collector is also provided with a filter device, the filter device is clamped with the foldable umbrella-shaped collector, and the lower periphery of the water storage tank is provided with a plurality of water leakage holes along the circumferential direction, and the plurality of water leakage holes are all provided with a barrier net. However, the multifunctional rainwater collector does not realize automatic irrigation.

[0004] The present invention effectively improves the deficiencies of existing technologies and creates a rainwater collection device that can realize automatic irrigation. It not only solves the problems of difficulty in water collection and irrigation for afforestation in sandy land in existing arid areas and low afforestation survival rate, but is also suitable for irrigation and fertilization of urban gardens, greatly saving water resources and labor costs. Summary of the invention

[0005] The purpose of the present invention is to provide a rainwater collection and irrigation device, the main purpose of which is to fully utilize rainwater and realize automatic rainwater irrigation. The automatic rainwater irrigation device for garden ecological greening collects rainwater over a large area through an umbrella-shaped collector, stores rainwater through a filtering device, automatically detects soil water shortage to realize automatic sprinkler irrigation, replenishes water to drought trees in time, saves water resources, and reduces labor, as described below.

[0006] To achieve the above-mentioned purpose, the present invention provides a rainwater collection and irrigation device, including an umbrella-shaped collector surrounding the trunk of a tree, a filter cartridge, and a water storage tank. The bottom of the umbrella-shaped collector is fixedly connected to the filter cartridge, the bottom of the filter cartridge is fixedly connected to the water storage tank, and the bottom of the water storage tank is connected to a plurality of automatic sprinkler irrigation kits through openings. The automatic sprinkler irrigation kits can spray the water in the water storage tank onto the ground.

[0007] In the above technical solution, preferably, the upper end of the umbrella-shaped collector has an inwardly protruding slot, and a first filter layer is fixed on the slot. The first filter layer is a filter structure, which is used to filter out most of the leaves and other debris to prevent blocking the passage between the water storage tank and affecting the rainwater collection effect. The lower end of the umbrella-shaped collector is provided with a cavity for storing rainwater retained due to slow filtration of the lower layer, so as to increase the water storage capacity when the rainfall is less or more urgent.

[0008] Preferably, the filter cartridge is provided with a second filter layer, a third filter layer and a storage tank from top to bottom, and the filter cartridge is provided with three layers of sliding slots to match them, which are used to pull and fix the second filter layer, the third filter layer and the storage tank to facilitate cleaning of obstructions, and rubber sealing strips are provided on the edges of the second filter layer and the third filter layer to prevent rainwater from overflowing.

[0009] In the above technical solution, preferably, the filter material of the second filter layer is gravel wrapped in a fine mesh, which filters out impurities in rainwater through physical properties; the filter material of the third filter layer is activated carbon wrapped in a fine mesh, which effectively removes odors and harmful substances such as heavy metals in the water; water-soluble nutrient materials can be placed in the storage tank to increase the nutrient content in the water tank, thereby realizing integrated water and fertilizer treatment.

[0010] A plurality of pluggable water inlet pipes are arranged between the filter cartridge and the water tank for introducing filtered water into the water tank. A plurality of support legs are arranged at the bottom of the water tank. A conical plug rod is arranged at the lower end of each support leg. The conical plug rod is inserted into the soil for supporting and fixing the water tank. The number of the support legs depends on the situation and is usually four or more. The height of the support legs is adjustable and the surface of the conical plug rod is provided with anti-slip grooves.

[0011] In the above technical solution, preferably, each of the automatic sprinkler irrigation kits includes a capillary, a water sensor, a solenoid valve and a nozzle, the water sensor is composed of a power supply and a two-pole probe, the power supply is connected in series to the two-pole probe and the solenoid valve, one end of the solenoid valve is connected to the water tank, and the other end is connected to the nozzle, the solenoid valve is a normally open solenoid valve, which is in an open state when the power is off and in a closed state when the power is on; the capillary is made of a hydrophilic material, the upper end of which is connected to the two-pole probe, and the lower end is inserted into the soil.

[0012] In the above technical solution, preferably, during the installation process of the device, in order to adapt to different tree diameters, two rows of positioning adjustment buckles are set at the opening and closing part of the water tank, and the positioning adjustment buckles can be slidably adjusted according to the required diameter for easy installation.

[0013] The present application also provides an implementation method of a rainwater collection irrigation device, which is as follows: when the soil moisture reaches a certain level, the water level in the capillary tube rises due to the capillary effect, and when the liquid level rises and touches the two-pole probe, the circuit is in a closed state, the power supply is activated, the solenoid valve is closed, and the sprinkler stops sprinkling; when the soil moisture drops to a certain level, the water level in the capillary tube drops, and when the liquid level drops and leaves the two-pole probe, the circuit is disconnected, the power supply is turned off, the solenoid valve is opened, and the sprinkler starts sprinkling.

[0014] Through the above method, automatic sprinkler irrigation can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 or the description of the prior art 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.

[0016] Figure 1 It is a schematic diagram of the structure of the rainwater collection and irrigation device of the present invention; Figure 2 yes Figure 1 The structural diagram of the automatic sprinkler irrigation kit part; Figure 3 yes Figure 1 A top view of the rainwater harvesting irrigation device; Figure 4 yes Figure 1 The circuit diagram of the automatic sprinkler irrigation kit; In the figure: 1. umbrella-shaped collector, 11. card slot, 12. first filter layer, 13. cavity; 2. filter cartridge, 21. second filter layer, 22. third filter layer, 23. storage tank, 24. sliding slot; 3. Tree trunk; 4. Water storage tank; 5. Support legs, 51. Conical plug rod; 6. Automatic sprinkler kit, 61. sprinkler head, 62. capillary tube, 63. water sensor, 631. power supply, 632. bipolar probe, 64. solenoid valve; 7. The water inlet pipe can be plugged in and out; 8. Positioning adjustment buckle. DETAILED DESCRIPTION

[0017] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0018] It should be understood that the terms "top", "bottom", "inside", "side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] Attached Figure 1 It is a schematic diagram of the structure of the rainwater collection and irrigation device of the present invention. It can be seen from the figure that the rainwater collection and irrigation device includes a filter cartridge 2 surrounding the trunk 3 of a tree, an umbrella-shaped collector 1, a water storage tank 4, an automatic sprinkler set 6, and support legs 5 arranged in a square shape near the base and a conical plug rod 51 fixed at the bottom end of the support leg 5. The umbrella-shaped collector 1 is installed on the top of the filter cartridge 2; the filter cartridge is installed on the top of the water storage tank 4 through a number of pluggable water inlet pipes 7; the internal components of the filter cartridge 2 can be pulled out and replaced; the lower end of the water storage tank 4 has an opening connected to a number of automatic sprinkler sets 6 and is fixed through the bottom support legs 5 and the conical plug rod 51, the height of the support legs 5 is adjustable, and the surface of the conical plug rod 51 is provided with anti-slip patterns.

[0020] Attached Figure 2 yes Figure 1 Schematic diagram of the structure of the automatic sprinkler irrigation kit 6 used in; it can be seen from the local structural diagram that the automatic sprinkler irrigation kit 6 is located at the bottom of the water tank 4, each water sensor is composed of a power supply and a two-pole probe, the power supply is connected in series with the two-pole probe and the solenoid valve, one end of the solenoid valve is connected to the water tank, and the other end is connected to the sprinkler head. The solenoid valve is a normally open solenoid valve, which is in the open state when the power is off and in the closed state when the power is on; the capillary is made of hydrophilic material, and the capillary can be made of cotton fiber material to ensure that the capillary effect can be produced. The upper end of the capillary is connected to the two-pole probe, and the lower end is inserted into the soil.

[0021] Attached Figure 3 yes Figure 1A top view of the rainwater collection and irrigation device; From the top view of the structural diagram, it can be seen that the upper end of the inner periphery of the umbrella-shaped collector 1 is provided with an inwardly protruding card slot 11, which is used to fix two semi-circular first filter layers 12. The first filter layer 12 is used to filter out most of the leaves and other debris to prevent blocking the passage between the water storage tank 4 and affecting the rainwater collection effect. A cavity 13 is left between the lower end of the umbrella-shaped collector 1 and the filter cylinder 2, which is characterized in that the water storage capacity is increased when the rainfall is small or urgent due to the rainwater that is retained too slowly by filtering, and the cavity 13 can temporarily store 5-10L of rainwater.

[0022] Figure 4 yes Figure 1 The circuit diagram of the automatic sprinkler irrigation kit 6 is shown in the figure. As can be seen from the circuit diagram, the power supply 631 of the water sensor 63 is connected in series with the bipolar probe 632 of the water sensor and the solenoid valve 64 connected to the sprinkler 61. The solenoid valve 64 is a normally open solenoid valve, which is closed after power is turned on. Normally, the bipolar probe 632 is insulated by air and is not powered. The solenoid valve 64 is in the open state and the sprinkler is turned on. In the immersed state, the bipolar probe 632 is turned on. When the bipolar probe 632 is immersed in water to a height of about 1 mm, the power supply 631 is turned on, the solenoid valve 64 is closed, and the sprinkler stops sprinkling. The power supply 631 can be a No. 1 dry battery.

[0023] Specifically, in order to achieve rainwater collection, please refer to the attached Figure 3 The rainwater passes through the umbrella-shaped collector 1 to the first filter layer 12, and then passes through a cavity 13 to the filter cartridge 2 at the bottom.

[0024] The umbrella-shaped collector 1 can be made of lightweight plastic into an umbrella-shaped structure.

[0025] For details, please refer to the attached Figure 1 In order to filter out impurities in rainwater, rainwater passes through the filter cartridge 2 surrounding the tree trunk 3 and the closed connection area of ​​the umbrella-shaped collector 1. The filter cartridge 2 includes a second filter layer 21, a third filter layer 22 and a storage tank 23. The second filter layer 21, the third filter layer 22 and the storage tank 23 are embedded in the filter cartridge 2 in a drawer-type hollow square box, and are pulled and fixed through three layers of sliding slots 24 between the inner walls of the filter cartridge 2. It is more convenient to replace the fillers in the second filter layer 21, the third filter layer 22 and the storage tank 23 to prevent pollutants from accumulating and blocking the filter screen. The edge of the filter screen can be sealed with a rubber strip to prevent water leakage.

[0026] The filter material of the second filter layer 21 can be gravel wrapped in a fine mesh, which can filter out large particles of impurities in rainwater through physical properties; the filter material of the third filter layer 22 can be activated carbon wrapped in a fine mesh, which can adsorb pollutants and effectively remove harmful substances such as odor and heavy metals in the water; water-soluble slow-release fertilizers can be placed in the storage tank 23 to increase the nutrient content in the water storage tank 4, thereby realizing integrated water and fertilizer treatment.

[0027] During the installation process of the water storage tank 4 and the filter cartridge 2, in order to adapt to different tree diameters, two rows of positioning and adjusting buckles 8 are arranged at the opening and closing parts thereof. The positioning and adjusting buckles 8 can be slidably adjusted according to the required diameter for easy installation.

[0028] Regarding the implementation method of the automatic sprinkler irrigation of the present invention, please refer to the attached Figure 2 , Attachment Figure 4 When the soil moisture reaches a certain level, the water level in the capillary tube 62 rises due to the capillary effect. When the level rises and touches the bipolar probe 632, the circuit is closed, the power supply 631 is activated, the solenoid valve 64 is closed, and the sprinkler 61 stops sprinkling. When the soil moisture drops to a certain level, the water level in the capillary tube 62 drops. When the level drops and leaves the bipolar probe 632, the circuit is disconnected, the power supply 631 is closed, the solenoid valve 64 is opened, and the sprinkler 61 starts sprinkling.

[0029] Through the above method, the solenoid valve can automatically open and close according to the changes in soil moisture, thereby realizing automatic sprinkler irrigation.

Claims

1. A rainwater collection irrigation device, characterized in that: include: An umbrella-shaped collector (1) is arranged around a tree trunk (3), and its bottom is connected to a filter cartridge (2); a slot (11) is provided at the upper end of the umbrella-shaped collector (1) to fix a first filter layer (12), and a cavity (13) is provided at the lower end; A filter cartridge (2) is provided with a second filter layer (21), a third filter layer (22) and a storage tank (23) from top to bottom inside, and the inner wall of the filter cartridge (2) is provided with three layers of sliding slots (24) for pulling and installing the second filter layer (21), the third filter layer (22) and the storage tank (23); A water storage tank (4) is connected to the filter cartridge (2) via a pluggable water inlet pipe (7); a support leg (5) and a conical plug rod (51) are provided at the bottom of the water storage tank (4), and a plurality of automatic sprinkler assemblies (6) are connected via openings; The automatic sprinkler irrigation kit (6) comprises a sprinkler head (61), a capillary tube (62), a water sensor (63) and a solenoid valve (64); the water sensor (63) is in contact with the soil via the capillary tube (62); the solenoid valve (64) is a normally open type, and its opening and closing is controlled by the water sensor (63).

2. The rainwater collection and irrigation device according to claim 1, characterized in that: The first filter layer (12) is a filter screen, and the cavity (13) is an annular water storage tank for temporarily storing filtered and retained rainwater; The second filter layer (21) is composed of gravel wrapped in a fine mesh, the third filter layer (22) is composed of activated carbon wrapped in a fine mesh, and the storage tank (23) is used to place water-soluble nutrient materials; Rubber sealing strips are provided on the edges of the second filter layer (21) and the third filter layer (22).

3. The rainwater collection and irrigation device according to claim 1, characterized in that: The water sensor (63) comprises a power supply (631) and a bipolar probe (632), wherein the bipolar probe (632) extends into the interior of the capillary tube (62); The capillary tube (62) is made of a hydrophilic material, with its lower end inserted into the soil and its upper end connected to the two-pole probe (632); The solenoid valve (64) is powered on and closed when the liquid surface in the capillary tube (62) contacts the bipolar probe (632), and is powered off and opened when the liquid surface separates.

4. The rainwater collection and irrigation device according to claim 1, characterized in that: The opening and closing portion of the water storage tank (4) is provided with two rows of positioning adjustment buckles (8) for adjusting the fit between the device and the tree trunk (3); The support leg (5) is height-adjustable, and the surface of the tapered insert rod (51) is provided with anti-slip grooves.

5. An implementation method based on the rainwater collection and irrigation device according to any one of claims 1 to 4, characterized in that: The following steps are involved: When the soil moisture decreases, the liquid level in the capillary tube (62) is separated from the bipolar probe (632), the circuit of the water sensor (63) is disconnected, the solenoid valve (64) is opened, and the water in the water storage tank (4) is sprayed onto the soil through the nozzle (61); When the soil moisture increases, the liquid surface in the capillary tube (62) contacts the bipolar probe (632), the circuit of the water sensor (63) is closed, the solenoid valve (64) is closed, and the sprinkler irrigation stops.

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