Device and method for improving water use efficiency of plants in arid regions

Abstract

The present invention discloses a device and method for improving the water use efficiency of plants in arid areas in the technical field of planting devices, including: a water storage component and a controller. A drip irrigation component is communicatively connected to the water storage component. The water storage component is communicatively connected to a plurality of collection basins through a recovery pipe. A baffle is hinged to the collection basin and a driving member is used to drive the baffle to rotate to block the collection basin. An inlet and an installation box communicated with the inlet are provided on the baffle. An induced draft fan is provided in the installation box. In this application, the driving member is used to drive the baffle to rotate to block and shield the top of the collection basin, so that the collection basin is in a closed state when not collecting rainwater, reducing the probability of impurities clogging components such as the collection basin, ensuring the rainwater collection ability of the device, and the induced draft fan is used to introduce external air into the interior of the collection basin when the baffle blocks the collection basin to dredge the collection basin and the recovery pipe, ensuring the utilization rate of rainwater by the device.

Description

Technical Field

[0001] The present invention relates to the technical field of planting devices, and specifically to a device and method for improving the water use efficiency of plants in arid areas. Background Technique

[0002] Under the background of global climate change, the area of arid regions is expanding year by year, posing severe challenges to agricultural production and ecological systems; water resources are scarce in arid areas, making the water use efficiency of plants a key factor affecting the sustainable development of agriculture; to increase the utilization efficiency of water resources, rainwater collection devices are generally used to collect rainwater during rainfall and use the collected rainwater for plant irrigation. However, the collection basins of existing rainwater collection devices are exposed to the outside for a long time. Due to a large amount of dust and impurities in arid areas, impurities are likely to fall into the collection basins of rainwater collection devices, which will cause the rainwater collection devices to become blocked and affect their subsequent rainwater collection ability, having certain limitations. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for improving the water use efficiency of plants in arid areas, so as to solve the problem that the collection basins of existing rainwater collection devices are exposed to the outside for a long time. Due to a large amount of dust and impurities in arid areas, impurities are likely to fall into the collection basins of rainwater collection devices, which will cause the rainwater collection devices to become blocked and affect their subsequent rainwater collection ability as mentioned in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A device for improving the water use efficiency of plants in arid areas, comprising: a water storage component, a controller. A drip irrigation component is communicatively connected to the water storage component. The water storage component is communicatively connected to a plurality of collection basins through a recovery pipe. A baffle is hinged to the collection basin and a driving member for driving the baffle to rotate to block the collection basin;

[0005] An inlet and an installation box communicated with the inlet are provided on the baffle. An induced draft fan is provided in the installation box. The induced draft fan is used to introduce outside air into the interior of the collection basin when the baffle blocks the collection basin, and use the air to dredge the collection basin and the recovery pipe, so that rainwater enters the interior of the water storage component through the recovery pipe when the collection basin collects rainwater.

[0006] Preferably, a blocking component for truncating the recovery pipe is provided on the recovery pipe;

[0007] Among them, the blocking component includes an installation cover, a rotating rod and a partition plate. The partition plate is arranged in the recovery pipe, the installation cover is arranged on the outside of the recovery pipe, and the rotating rod is rotatably arranged in the installation cover and connected to the partition plate.

[0008] Preferably, a pull rope for connecting with the baffle is wound on the rotating rod, and a clockwork spring for connecting with the rotating rod is provided on the installation cover.

[0009] Preferably, the rotating rod includes a first connecting rod and a second connecting rod. The first connecting rod is rotatably arranged in the installation cover. The second connecting rod is connected to the partition board. Openings are provided at one ends of the first connecting rod and the second connecting rod close to each other. A screw sleeve and a pushing member for driving the screw sleeve to move are slidably arranged in one of the openings. A screw rod is arranged in the other opening. The screw rod is rotatably inserted into the screw sleeve. When the pushing member works, it pushes the screw sleeve to slide, so as to drive the screw rod and the second connecting rod to rotate, and drive the partition board to rotate to release the restriction on the recovery pipe.

[0010] Preferably, a pressure sensor and an elastic partition layer for covering the pressure sensor are arranged in the collection basin. The pressure sensor is used to transmit information to the controller. The induced draft fan is controlled by the controller to start and stop. When the controller detects that the air pressure inside the collection basin reaches the preset value, it controls the induced draft fan to stop working.

[0011] Preferably, an installation groove is provided on one side of the baffle facing the collection basin. A blocking plate for blocking the inlet and a reset member connected to the blocking plate are slidably arranged in the installation groove. When the baffle rotates to the horizontal position and opens the top of the collection basin, the side wall of the baffle will approach the side wall of the collection basin, so that the blocking plate is squeezed and moved by the side wall of the collection basin to block the inlet.

[0012] Preferably, a one-way valve is connected to the air inlet of the installation box.

[0013] Preferably, the water storage assembly includes a water tank, a filter screen arranged in the water tank, a pump arranged in the water tank, and a photovoltaic power generation assembly arranged on the water tank.

[0014] Preferably, an adsorption layer is provided on one side of the baffle.

[0015] Preferably, a method for improving the water use efficiency of plants in arid areas uses the above-mentioned device for improving the water use efficiency of plants in arid areas, and includes the following steps:

[0016] S1: When it does not rain in the arid area, after the driving member drives the baffle to rotate to block the top of the collection basin, the induced draft fan works to introduce the outside air into the inside of the collection basin, so that the air flows inside the collection basin and the recovery pipe. When it rains in the arid area, the driving member drives the baffle to rotate to open the top of the collection basin, so that the rainwater falls into the inside of the collection basin;

[0017] S2: The water stored in the collection basin flows into the inside of the water storage assembly through the recovery pipe, and the drip irrigation assembly uses the water inside the water storage assembly to drip irrigate the plants in the arid area.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In this application, a driving member is used to drive the baffle to rotate to block and cover the top of the collection basin, so that the collection basin is in a closed state when not collecting rainwater, reducing the probability of impurities blocking components such as the collection basin, ensuring the rainwater collection ability of the device, and an induced fan is used to introduce external air into the interior of the collection basin when the baffle blocks the collection basin to dredge the collection basin and the recovery pipe, further reducing the probability of the components for collecting rainwater of the device being blocked and ensuring the utilization rate of rainwater by the device;

[0020] In this application, when the induced fan introduces external air into the interior of the collection basin, a blocking component is used to cut off the recovery pipe, so that the air stays in the interior of the collection basin, and the moisture contained in the air in the collection basin is liquefied by the decrease in temperature at night in arid areas, increasing the water utilization efficiency of plants in arid areas and enhancing the water collection function of the device, and improving the utilization rate of water in arid areas. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the device for improving the water utilization efficiency of plants in arid areas of the present invention;

[0022] Figure 2 is a schematic cross-sectional structural diagram of the connection between the collection basin and the baffle of the present invention;

[0023] Figure 3 is of the present invention Figure 2 is an enlarged schematic diagram of the structure at A in;

[0024] Figure 4 is of the present invention Figure 2 is an enlarged schematic diagram of the structure at B in;

[0025] Figure 5 is of the present invention Figure 4 is an enlarged schematic diagram of the structure at C in;

[0026] Figure 6 is a schematic cross-sectional structural diagram of the water storage component of the present invention.

[0027] In the figure: 1. Water storage component; 101. Water tank; 102. Filter screen; 103. Pump; 104. Photovoltaic power generation component; 2. Drip irrigation component; 3. Recovery pipe; 4. Collection basin; 5. Baffle; 6. Installation box; 7. Check valve; 8. Adsorption layer; 9. Pressure sensor; 10. Elastic partition; 11. Partition board; 12. Pull rope; 13. Induced fan; 14. Inlet; 15. Baffle plate; 16. Installation groove; 17. Installation cover; 18. Rotating rod; 181. First connecting rod; 182. Second connecting rod; 183. Screw sleeve; 184. Screw rod; 185. Pushing member; 19. Hairspring; 20. Controller. Detailed Embodiments

[0028] Next, in conjunction with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0029] Embodiment 1

[0030] Please refer to Figure 1 , a device for improving the water use efficiency of plants in arid areas, comprising: a water storage component 1, a drip irrigation component 2, a recovery pipe 3, and a plurality of collection basins 4; the drip irrigation component 2 refers to a pipeline provided with water outlet holes, the pipeline is communicated with the water storage component 1, the pipeline is laid in the planting area of the plants, and each water outlet hole corresponds to a plant, and the plants are watered by drip irrigation, which can save water resources and improve the utilization rate of water; a plurality of collection basins 4 are installed on the ground in the arid area, and a recovery pipe 3 is connected to each of the plurality of collection basins 4. After the plurality of recovery pipes 3 are aggregated, they are communicated with the water storage component 1. The collection basins 4 are used to collect rainwater during rainfall, and the rainwater is used to drip irrigate the plants, improving the utilization rate of water in the arid area.

[0031] Please refer to Figure 1 and Figure 2 , a baffle 5 is hinged on the side wall of the collection basin 4, a driving member (motor) is provided on the collection basin 4, and the output shaft of the motor is connected to the baffle 5 for driving the baffle 5 to rotate to block the top of the collection basin 4; an inlet 14 is provided on the baffle 5, an installation box 6 is installed on the baffle 5, the installation box 6 is provided with two openings, one opening is communicated with the inlet 14, and the other opening is for air to enter (a one-way valve 7 is provided on this opening to prevent air from running out from here), and an induced draft fan 13 is provided inside the installation box 6.

[0032] A method for improving the water use efficiency of plants in arid areas, the method steps are as follows:

[0033] First, when it does not rain in the arid area, the driving member drives the baffle 5 to rotate to block the top of the collection basin 4 (to avoid the collection basin 4 being open for a long time and reducing the probability of impurities entering the inside of the collection basin 4), and the induced draft fan 13 works to introduce external air into the inside of the collection basin 4, so that the air flows inside the collection basin 4 and the recovery pipe 3, for dredging the collection basin 4 and the recovery pipe 3 (preventing the rainwater collection facilities of the device from being blocked and ensuring that its rainwater collection ability will not be weakened, improving the utilization rate of water in the arid area); when it rains in the arid area, the driving member drives the baffle 5 to rotate to open the top of the collection basin 4, so that the rainwater falls into the inside of the collection basin 4;

[0034] Second, the water stored inside the collection basin 4 flows into the inside of the water storage assembly 1 through the recycling pipe 3, and the drip irrigation assembly 2 uses the water inside the water storage assembly 1 to drip-irrigate the plants in the arid area.

[0035] In this embodiment, as a further optimized solution, please refer to Figure 2 and Figure 3 : A mounting groove 16 is provided on the side of the baffle 5 facing the collection basin 4. A blocking plate 15 is slidably arranged in the inner cavity of the mounting groove 16. A reset member (spring) is provided between the blocking plate 15 and the mounting groove 16. When the baffle 5 is unfolded (the top of the collection basin 4 is open), the mounting box 6 is located at the bottom of the baffle 5. When the baffle 5 rotates to the horizontal position and opens the top of the collection basin 4, the side wall of the baffle 5 will approach the side wall of the collection basin 4, causing the blocking plate 15 to be squeezed by the side wall of the collection basin 4 and move into the inside of the inlet 14 to block the inlet 14. During the process of the collection basin 4 collecting rainwater, rainwater or impurities will not enter the inside of the mounting box 6 through the inlet 14. When the baffle 5 rotates to block the collection basin 4, the extrusion on the blocking plate 15 disappears, and under the action of the reset member, the blocking plate 15 moves to open the inlet 14.

[0036] In this embodiment, as a further optimized solution, please refer to Figure 6 : The water storage assembly 1 includes a water tank 101, a filter screen 102 arranged inside the water tank 101, a pump 103 arranged inside the water tank 101, and a photovoltaic power generation assembly 104 arranged on the water tank 101. The filter screen 102 divides the water storage tank 101 into two left and right cavities. The left cavity is communicated with the recycling pipe 3. The pump 103 is installed in the right cavity, and the outlet of the pump 103 is communicated with the drip irrigation assembly 2 to filter the water for drip irrigation by using the filter screen 102. The photovoltaic power generation assembly 104 generates electricity by using light energy and supplies the generated electricity to the electrical equipment of the device for improving the water use efficiency of plants in the arid area.

[0037] In this embodiment, as a further optimized solution, please refer to Figure 2 and Figure 3 : An adsorption layer 8 (made of sponge material) is provided on one side of the baffle 5. When the baffle 5 rotates and unfolds to open the top of the collection basin 4, the adsorption layer 8 is located at the top of the baffle 5. When the collection basin 4 collects rainwater, when the rainwater falls on the baffle 5, it will contact the adsorption layer 8, and part of the rainwater is adsorbed by the adsorption layer 8, increasing the ability to collect rainwater. At the same time, it reduces the probability of the rainwater splashing on the baffle 5 and increases the probability of the rainwater falling into the inside of the collection basin 4, thereby increasing the rainwater collection capacity of the collection basin 4.

[0038] Embodiment 2

[0039] As a further optimized solution of Embodiment 1, please refer to Figure 2 and Figure 4, a blocking component (for truncating the recovery pipe 3) is provided on the recovery pipe 3; wherein, the blocking component includes a mounting cover 17, a rotating rod 18 and a partition plate 11, the partition plate 11 is arranged in the inner cavity of the recovery pipe 3, the mounting cover 17 is arranged outside the recovery pipe 3, the rotating rod 18 is rotatably arranged in the inner cavity of the mounting cover 17, and one end of the rotating rod 18 extends into the inner cavity of the recovery pipe 3 and is connected to the partition plate 11.

[0040] It should be noted that when there is no rainfall in the arid area, when the baffle 5 blocks the top of the collection basin 4 and the induced draft fan 13 introduces external air into the collection basin 4 (the induced draft fan 13 works during the day without rainfall), rotate the rotating rod 18 to make the partition plate 11 rotate, truncate the recovery pipe 3, and make the introduced air stay inside the collection basin 4; after the air pressure inside the collection basin 4 reaches a certain value, the induced draft fan 13 stops working; the water contained in the air inside the collection basin 4 liquefies into water when the temperature drops at night (because the evaporation capacity in the arid area is strong, by recovering the water in the air, a part of the water consumption can be reduced); when recovering the liquefied water in the collection basin 4, rotate the partition plate 11 to release the restriction on the recovery pipe 3, and make the water and air inside the collection basin 4 be introduced into the internal storage water component 1 through the recovery pipe 3, and the air flow is used to dredge the recovery pipe 3 and reduce the probability of its blockage.

[0041] It should also be noted that a controller 20 is installed on the water storage component 1 (the controller 20 refers to a central control device, such as a programmable logic controller, which is an existing device and will not be described in detail here), and the controller 20 is used to control the opening and closing of the driving part and the induced draft fan 13; during rainfall, the controller 20 controls the driving part to drive the baffle 5 to rotate and open the top of the collection basin 4, and during non-rainfall, the controller 20 controls the driving part to drive the baffle 5 to rotate and close the top of the collection basin 4; and the controller 20 also controls the induced draft fan 13 to start during the day without rainfall; in order to ensure that the water in the air will liquefy, a cooling device (such as a heat exchanger) is installed on the collection basin 4.

[0042] In this embodiment, as a further optimized solution, please refer to Figure 2 and Figure 4, a pull rope 12 is wound around the rotating rod 18. A guiding hole is formed in the outer wall of the collection basin 4. One end of the pull rope 12 away from the rotating rod 18 passes through the guiding hole and is connected to the baffle 5. A spiral spring 19 is sleeved on the outer wall of the rotating rod 18. Two ends of the spiral spring 19 are respectively connected to the outer wall of the rotating rod 18 and the inner wall of the mounting cover 17. When the baffle 5 rotates to block the top of the collection basin 4, the pull rope 12 will be pulled, causing the rotating rod 18 to drive the partition 11 to rotate, cutting off the recycling pipe 3, so that when the baffle 5 rotates to block the collection basin 4, it can drive the partition 11 to move synchronously to block the recycling pipe 3. When the baffle 5 rotates to open the top of the collection basin 4, the tension on the pull rope 12 disappears and it relaxes, causing the tension on the rotating rod 18 to disappear. Under the action of the spiral spring 19, the rotating rod 18 drives the partition 11 to rotate in the reverse direction, and the recycling pipe 3 is unblocked.

[0043] In this embodiment, as a further optimized solution, please refer to Figure 4 and Figure 5 , the rotating rod 18 includes a first connecting rod 181 and a second connecting rod 182. The first connecting rod 181 is rotatably arranged in the mounting cover 17. The second connecting rod 182 is connected to the partition 11. Openings are formed at the ends of the first connecting rod 181 and the second connecting rod 182 that are close to each other. A screw sleeve 183 is slidably arranged in the inner cavity of one of the openings (this opening is located on the first connecting rod 181), and a pushing member 185 (electric telescopic rod) is arranged in this hole. The moving end of the pushing member 185 is connected to the screw sleeve 183. A screw rod 184 is fixedly arranged in the other opening (this opening is located on the second connecting rod 182). One end of the screw rod 184 is rotatably inserted into the screw sleeve 183. When the partition 11 cuts off the recycling pipe 3, the pushing member 185 works, pushing the screw sleeve 183 to slide, increasing the length of the screw rod 184 entering the screw sleeve 183, so as to drive the screw rod 184 to rotate, causing the second connecting rod 182 to rotate, driving the partition 11 to rotate, and releasing the restriction on the recycling pipe 3, so that when the baffle 5 does not rotate and unfold, the blocking effect of the blocking assembly can also be actively released, enabling the liquefied water collected inside the collection basin 4 to enter the inside of the water storage assembly 1 through the recycling pipe 3.

[0044] In this embodiment, as a further optimized solution, please refer to Figure 1 and Figure 2 , a pressure sensor 9 (the pressure sensor 9 refers to a gas pressure sensor) is arranged inside the collection basin 4. An elastic interlayer 10 (made of rubber) is installed inside the collection basin 4. The pressure sensor 9 is located inside the elastic interlayer 10 to protect the pressure sensor 9. The pressure sensor 9 continuously transmits information to the controller 20. When the induced draft fan 13 guides the outside air into the inside of the collection basin 4, the air pressure inside the collection basin 4 will gradually increase (because the blocking assembly cuts off the recycling pipe 3). The controller 20 receives the pressure information continuously transmitted by the pressure sensor 9. When it detects that the air pressure inside the collection basin 4 reaches the preset value, the controller 20 will control the induced draft fan 13 to stop working.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for improving water utilization efficiency of plants in arid areas, comprising: A water storage component (1), a controller (20), wherein the water storage component (1) is connected to a drip irrigation component (2), and the water storage component (1) is connected to a plurality of collection basins (4) via a recovery pipe (3), characterized in that a baffle (5) and a driving member for driving the baffle (5) to rotate and block the collection basin (4) are hingedly connected to the collection basin (4); The baffle plate (5) is provided with an inlet (14) and a mounting box (6) connected to the inlet (14); the mounting box (6) is provided with an exhaust fan (13); the exhaust fan (13) is used to introduce outside air into the interior of the collection basin (4) when the baffle plate (5) blocks the collection basin (4), and to use air to clear the collection basin (4) and the recovery pipe (3), so that when the collection basin (4) collects rainwater, rainwater enters the interior of the water storage assembly (1) through the recovery pipe (3); The recovery pipe (3) is provided with a plugging component for cutting off the recovery pipe (3); The plugging assembly comprises a mounting cover (17), a rotating rod (18) and a partition (11); the partition (11) is arranged in the recovery pipe (3); the mounting cover (17) is arranged outside the recovery pipe (3); the rotating rod (18) is rotatably arranged in the mounting cover (17) and connected to the partition (11); A pull rope (12) for connecting to the baffle (5) is wound around the rotating rod (18), and a spring (19) for connecting to the rotating rod (18) is provided on the mounting cover (17).

2. The device for improving water utilization efficiency of plants in arid areas according to claim 1, characterized in that: The rotating rod (18) comprises a first connecting rod (181) and a second connecting rod (182), wherein the first connecting rod (181) is rotatably arranged in the mounting cover (17), and the second connecting rod (182) is connected to the partition (11). An opening is provided at one end of the first connecting rod (181) and the second connecting rod (182) which are close to each other, and a screw sleeve (183) and a pushing member (185) for driving the screw sleeve (183) to move are slidably arranged in the opening on one side, and a screw rod (184) is provided in the opening on the other side, and the screw rod (184) is rotatably inserted in the screw sleeve (183); the pushing member (185) works to push the screw sleeve (183) to slide, and is used to drive the screw rod (184) and the second connecting rod (182) to rotate, so as to rotate with the partition (11) and release the restriction on the recovery pipe (3).

3. The device for improving water utilization efficiency of plants in arid areas according to claim 1, characterized in that: A pressure sensor (9) and an elastic barrier layer (10) for covering the pressure sensor (9) are provided in the collection basin (4); the pressure sensor (9) is used to transmit information to the controller (20); the exhaust fan (13) is controlled to be turned on and off by the controller (20); when the controller (20) detects that the air pressure inside the collection basin (4) reaches a preset value, the exhaust fan (13) is controlled to stop working.

4. The device for improving water utilization efficiency of plants in arid areas according to claim 1, characterized in that: A mounting groove (16) is provided on a side of the baffle plate (5) facing the collection basin (4), and a blocking plate (15) for blocking the inlet (14) and a reset member connected to the blocking plate (15) are slidably provided in the mounting groove (16); when the baffle plate (5) is rotated to a horizontal position and the top of the collection basin (4) is opened, the side wall of the baffle plate (5) approaches the side wall of the collection basin (4), so that the blocking plate (15) is squeezed and moved by the side wall of the collection basin (4), thereby blocking the inlet (14).

5. The device for improving water utilization efficiency of plants in arid areas according to claim 1, characterized in that: The air inlet of the installation box (6) is connected to a one-way valve (7).

6. The device for improving water utilization efficiency of plants in arid areas according to claim 1, characterized in that: The water storage component (1) comprises a water tank (101), a filter screen (102) arranged in the water tank (101), a pump (103) arranged in the water tank (101), and a photovoltaic power generation component (104) arranged on the water tank (101).

7. The device for improving water utilization efficiency of plants in arid areas according to claim 1, characterized in that: An adsorption layer (8) is provided on one side of the baffle (5).

8. A method for improving water use efficiency of plants in arid areas, using a device for improving water use efficiency of plants in arid areas as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: When there is no rainfall in the arid area, the driving member drives the baffle (5) to rotate to seal the top of the collection basin (4), and then the exhaust fan (13) operates to introduce outside air into the interior of the collection basin (4), so that the air flows inside the collection basin (4) and the recovery pipe (3). When there is rainfall in the arid area, the driving member drives the baffle (5) to rotate to open the top of the collection basin (4), so that rainwater falls into the interior of the collection basin (4); S2: The water stored in the collection basin (4) flows into the interior of the water storage component (1) through the recovery pipe (3), and the drip irrigation component (2) uses the water in the water storage component (1) to drip irrigate the plants in the arid area.

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