CN114982596A - Air water collecting and drip irrigation device and method - Google Patents
Air water collecting and drip irrigation device and method Download PDFInfo
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- CN114982596A CN114982596A CN202210596162.0A CN202210596162A CN114982596A CN 114982596 A CN114982596 A CN 114982596A CN 202210596162 A CN202210596162 A CN 202210596162A CN 114982596 A CN114982596 A CN 114982596A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/023—Dispensing fittings for drip irrigation, e.g. drippers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/28—Methods or installations for obtaining or collecting drinking water or tap water from humid air
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Environmental & Geological Engineering (AREA)
- Drying Of Gases (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses an air water collecting and drip irrigation device and a method, comprising an air water collecting mechanism and a water storage drip irrigation mechanism; the air water collecting mechanism utilizes dew collecting plates and glass plates to collect dew at night or in the morning, and can release water vapor adsorbed from air at night or in the morning by the adsorbent bed again in the daytime, and the dew is condensed on the cooled glass plates, so that the dew on the dew collecting plates and the glass plates is finally collected, and the water collecting amount in desert air is increased; the water storage drip irrigation mechanism realizes the stability of the water level in the drip irrigation pipe by utilizing two water pipes with different height positions, so that the water quantity delivered to plants is stable; according to the different water demands of plants, the cotton hose and cotton rope quantity for supplying water are adjusted by the rope pressing mechanism, and the water quantity delivered to the plants is adjusted. The invention can effectively collect water from the air under the extreme climatic condition of the desert, and supply water to plants by utilizing the accurate drip irrigation mode of the water storage drip irrigation mechanism, thereby realizing the maximization of water resource utilization.
Description
Technical Field
The invention relates to the technical field of air water collection and drip irrigation, in particular to an air water collection and drip irrigation device and method.
Background
Land desertification is increasingly attracting wide attention of human society. In desert areas, how to effectively obtain water resources and realize water-saving and energy-saving planting is a difficult problem which must be solved. Many methods have been used worldwide to collect water, such as by desalination of sea water, collection of ground water, collection and storage of rainwater, but these sources are limited by geographical location and climatic conditions, and therefore, collecting water from the atmosphere becomes critical, and taking water by surface cooling is an important way to collect water from the atmosphere. However, the existing equipment for taking water by surface cooling has high cost due to difficult refrigeration; in addition, the flood irrigation of plants in the desert now requires a large amount of manpower and wastes water resources. Therefore, it is of great significance to develop a device capable of taking water in desert and carrying out drip irrigation on plants.
Disclosure of Invention
The invention aims to provide an air water collecting and drip irrigation device and method aiming at the defects in the prior art.
The invention relates to an air water collecting and drip irrigation device which comprises an air water collecting mechanism, a rotating mechanism and a water storage drip irrigation mechanism. The air water collecting mechanism comprises an upper layer water collecting tank, a first water pipe, a three-way pipe, a second water pipe, a front shutter, a rear shutter, a dew collecting plate, a glass plate, an adsorbent bed fixing plate and a lower layer water collecting tank; the dew collection plate, the glass plate and the adsorbent bed fixing plate are sequentially arranged at intervals from top to bottom, and the dew collection plate and the glass plate are obliquely arranged; the bottom end of the dew collection plate is embedded into the upper layer water collection tank, and the bottom end of the glass plate is embedded into the lower layer water collection tank; throttle air inlets with two sides respectively fixed with the two side plates are arranged between the top end of the dew collection plate and the top end of the glass plate, or a refrigerating sheet connected with a controller is fixed at the top end of the glass plate; the front louver and the rear louver are both positioned between the glass plate and the adsorbent bed fixing plate, the front louver is positioned at the top end of the glass plate, and the rear louver is positioned at the bottom end of the glass plate; one side of each of the dew collection plate, the glass plate, the adsorbent bed fixing plate, the upper layer water collecting tank, the front louver and the rear louver is fixed with one side plate, and the other side of each of the dew collection plate, the glass plate, the adsorbent bed fixing plate, the upper layer water collecting tank, the front louver and the rear louver is fixed with the other side plate; the two side plates are fixed on the upper section bar frame at intervals; the upper section bar frame is driven to rotate by the rotating mechanism; the lower layer water collecting tank is fixed on the rear louver; the front shutter driving mechanism drives the front shutter, and the rear shutter driving mechanism drives the rear shutter; both sides of the upper layer water collecting tank and the lower layer water collecting tank are sealed; the top end of the first water pipe is communicated with the upper layer water collecting tank, and the top end of the second water pipe is communicated with the lower layer water collecting tank; the bottom ends of the first water pipe and the second water pipe are respectively connected with two connectors of the three-way pipe; the adsorbent bed fixing plate is fixed with a plurality of adsorbent beds, and adsorbent materials are arranged in the adsorbent beds.
The water storage drip irrigation mechanism comprises a first water storage tank, a drip irrigation pipe, a cotton thread hose and a cotton rope; a first inlet of the first water storage tank is communicated with a third interface of a three-way pipe in the air water collecting mechanism, and a second inlet of the first water storage tank is used as an external water source interface and is in a closed state when not used; the drip irrigation pipe is connected with the outlet of the first water storage tank; one end of the cotton thread hose is inserted into the drip irrigation pipe and is fixed with the cotton rope arranged in the drip irrigation pipe.
Preferably, the upper layer water pipe connecting block is fixed on the upper layer water collecting tank, and the lower layer water pipe connecting block is fixed on the lower layer water collecting tank; the top end of the first water pipe penetrates through the upper layer water pipe connecting block to be communicated with the upper layer water collecting tank; the top end of the second water pipe penetrates through the lower-layer water pipe connecting block and is communicated with the lower-layer water collecting tank.
Preferably, the front louver driving mechanism comprises a front steering engine, a front connecting rod and a front iron wire; the front steering engine is fixed on the upper section frame; one end of the front connecting rod is fixed with one of the blades of the front shutter, and the other end of the front connecting rod is fixed with one end of the front iron wire; the other end of the front iron wire is fixed with an output shaft of the front steering engine; the rear louver driving mechanism comprises a rear steering engine, a rear connecting rod and a rear iron wire; the rear steering engine is fixed on the upper section bar frame; one end of the rear connecting rod is fixed with one blade of the rear shutter, and the other end of the rear connecting rod is fixed with one end of a rear iron wire; the other end of the rear iron wire is fixed with an output shaft of the rear steering engine.
Preferably, the rotating mechanism comprises a motor, a first optical axis, a first synchronous pulley, a turntable upper plate, a turntable outer ring, a turntable inner ring, a turntable lower plate, a second optical axis, a second synchronous pulley and a synchronous belt; the motor is fixed on the motor bracket; the first optical axis and the first bearing seat form a rotating pair and are connected with an output shaft of the motor through a coupler; the second optical axis and the second bearing seat form a revolute pair; the motor support, the first bearing seat and the second bearing seat are all fixed on the lower section frame; the first synchronous belt wheel is fixed on a first optical axis; the second synchronous belt wheel is fixed on the second optical axis and is connected with the first synchronous belt wheel through a synchronous belt; the outer ring of the rotary table is fixed on the lower plate of the rotary table, and the lower plate of the rotary table is fixed on the lower section frame; the upper plate of the turntable is fixed with the second optical axis through a flange plate; the inner ring and the outer ring of the turntable form a revolute pair and are fixed on the bottom surface of the upper plate of the turntable.
Preferably, a third interface of the three-way pipe in the air water collecting mechanism is connected with one end of a fifth water pipe through a quick joint, and the other end of the fifth water pipe is connected with an inlet of the second water storage tank; the outlet of the second water storage tank is communicated with the first inlet of the first water storage tank through a third water pipe; the top of the second water storage tank is provided with an air vent; a second electromagnetic valve is arranged on the third water pipe; the first water storage tank is fixed on the lower section bar frame through a first water storage tank bracket, and the second water storage tank is fixed on the lower section bar frame through a second water storage tank bracket; the second inlet of the first water storage tank is connected with a fourth water pipe, the fourth water pipe is connected with an external water source, and a first electromagnetic valve is arranged on the fourth water pipe.
Preferably, the outlet of the middle part of the first water storage tank is connected with the first inlet of the drip irrigation pipe through a seventh water pipe; a third electromagnetic valve is arranged on the seventh water pipe; an outlet at the bottom of the first water storage tank is connected with a second inlet of the drip irrigation pipe through a sixth water pipe; a fourth electromagnetic valve is arranged on the sixth water pipe; the first inlet position of the drip irrigation pipe is higher than the second inlet position; a liquid level sensor connected with the controller is arranged in the first water storage tank.
Preferably, the rope pressing mechanism is further arranged and comprises a rope pressing support, a first rope pressing block, a spring, a hose connector, a first connecting rod, a rope pressing steering engine, a second connecting rod, a rope pressing limiting block and a second rope pressing block; the drip irrigation pipe is fixed on the pressing rope bracket; the rope pressing steering engine is fixed on the rope pressing support, an output shaft of the rope pressing steering engine is fixed with one end of the first connecting rod, and the other end of the first connecting rod is hinged with one end of the second connecting rod; the other end of the second connecting rod is hinged with the rope pressing limiting block; the rope pressing limiting block and the rope pressing bracket form a sliding pair; the first rope pressing block and the second rope pressing block form a sliding pair with the rope pressing support, and are connected with the rope pressing limiting block through springs, and the first rope pressing block is lower than the second rope pressing block; the water storage drip irrigation mechanism is provided with three groups of cotton thread hoses and cotton ropes, three inlets of a hose joint are respectively connected with the other ends of the three cotton rope hoses, and an outlet of the hose joint is connected with a drip irrigation rope pipe; the first rope pressing block and the second rope pressing block are respectively positioned above one cotton rope hose.
Preferably, a solar device is further arranged, and the solar device comprises a solar panel, a wind direction sensor and a sensor connecting block; the solar panel is fixed on the upright column and provides electric energy for the controller, the rotating mechanism, the front shutter driving mechanism, the rear shutter driving mechanism and the rope pressing mechanism; the wind direction sensor is fixed at the top end of the upright post through a sensor connecting block, and the signal output end of the wind direction sensor is connected with the controller; the photosensitive sensor is fixed on the upright post, and the signal output end of the photosensitive sensor is connected with the controller.
The method for water collection and drip irrigation of the air water collection and drip irrigation device comprises the following specific steps:
the water collecting process comprises the following steps:
when the wind direction sensor detects the wind direction, the signal is fed back to the controller, and the controller controls the rotating mechanism to adjust the direction of the air water collecting mechanism, so that the top end of the dew collecting plate, the top end of the glass plate and the front louver are always windward.
When the photosensitive sensor detects that the blind is at night, the controller controls the front louver driving mechanism to drive the blades of the front louver to be opened and controls the rear louver driving mechanism to drive the blades of the rear louver to be opened; the water vapor in the wind entering the front shutter and passing through the adsorbent bed is absorbed by the adsorbent material in the adsorbent bed; when wind passes through the glass plate and the dew collecting plate, dew formed on the glass plate flows into the lower layer water collecting tank, and dew formed on the dew collecting plate flows into the upper layer water collecting tank.
When the photosensitive sensor detects that the blind is in the daytime, the controller controls the front blind driving mechanism to drive the blades of the front blind to close and controls the rear blind driving mechanism to drive the blades of the rear blind to close; as the temperature gradually increases during the day, water in the adsorbent material in the adsorbent bed gradually evaporates into water vapor; when the throttling air inlet is arranged, due to the throttling expansion principle of the throttling air inlet, the air pressure entering the throttling air inlet is reduced, the speed is increased, the temperature is reduced, the temperature of the glass plate is lower than that of water vapor, and the water vapor is condensed into water drops to flow into the lower-layer water collecting tank when meeting the bottom surface of the glass plate; if the refrigeration piece is arranged, the glass plate is cooled, and the water vapor is condensed into water drops to the lower-layer water collecting tank when meeting the bottom surface of the glass plate.
The drip irrigation process comprises the following steps:
water in the lower layer water collecting tank and the upper layer water collecting tank flows into a second water storage tank for storage; when the liquid level sensor detects that the water level of the first water storage tank is lower than a set water level point, the controller controls the third electromagnetic valve and the fourth electromagnetic valve to be kept in a closed state, the second electromagnetic valve is opened, and water flows into the first water storage tank from the second water storage tank; if an external water source exists and the water in the second water storage tank is not enough to enable the water level of the first water storage tank to be higher than the set water level point, the first electromagnetic valve is opened to enable the first water storage tank to be filled with water. When the liquid level sensor detects that the water level of the first water storage tank is higher than a set water level point, the second electromagnetic valve is closed after being continuously opened for a set time; then the third electromagnetic valve and the fourth electromagnetic valve are opened, water in the first water storage tank flows into the drip irrigation pipe through the sixth water pipe until the water level in the drip irrigation pipe is higher than the outlet of the seventh water pipe, the first water storage tank is completely sealed, and the water level in the drip irrigation pipe is not changed any more; when the plant root is lack of water, the drip irrigation rope pipe realizes drip irrigation on the plant root, and the water in the drip irrigation rope pipe is absorbed by the cotton rope from the drip irrigation pipe and is transmitted through the cotton thread hose and the hose joint. When the water level in the drip irrigation pipe drops below the outlet of the seventh water pipe due to plant drip irrigation, the sixth water pipe supplies the water in the first water storage tank to the drip irrigation pipe again until the water level in the drip irrigation pipe is higher than the outlet of the seventh water pipe, and the water level in the drip irrigation pipe is in a stable state again and does not change any more.
Preferably, in the drip irrigation process, the number of the cotton thread hoses and the cotton ropes for supplying water is adjusted according to different water demands of plants, and the drip irrigation process specifically comprises the following steps: when the water demand of the plant is large, the three groups of cotton hose and cotton rope supply water simultaneously; when the water demand of the plant is moderate, the rope pressing steering engine drives the rope pressing limiting block to move downwards for a set distance through the first connecting rod and the second connecting rod, so that the first rope pressing block presses the cotton rope below, but the first rope pressing block does not completely press the cotton rope below due to the existence of the spring; the second rope pressing block is higher than the first rope pressing block and does not press the cotton rope below the second rope pressing block; when the water demand of the plant is low, the rope pressing steering engine continues to drive the rope pressing limiting block to move downwards, so that the first rope pressing block completely compresses the cotton rope below the rope pressing steering engine, and the second rope pressing block also presses the cotton rope below the rope pressing steering engine.
The invention has the following beneficial effects:
the invention can effectively collect water from the air under the extreme climatic condition of the desert, and supply water to plants by using the accurate drip irrigation mode of the water storage drip irrigation mechanism, thereby realizing the maximization and the optimization of water resource utilization, solving the problem that the plants in the desert can not survive due to water shortage to the utmost extent, and making contribution to ecological restoration and desert greening. Wherein, can not only utilize dew collection board and the hardened and unleahed dew of glass in night or early morning, can also release adsorbent bed night or early morning adsorbed vapor in the air again daytime moreover to dew on the glass board after the cooling is collected the dew on dew collection board and the glass board finally, greatly increased the water collection capacity in the desert air. In the drip irrigation process, the water level in the drip irrigation pipe is stable by utilizing the two water pipes with different height positions, so that the water quantity delivered to plants is stable. Furthermore, according to the difference of the water demand of different plants in each growth stage, the cotton hose and the cotton rope quantity for supplying water can be adjusted by the rope pressing mechanism, so that the water quantity delivered to the plants can be adjusted.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of an air water collecting mechanism according to the present invention;
FIG. 3 is a schematic structural view of the air water collecting mechanism of the present invention with the side plate removed;
FIG. 4 is a schematic structural view of a rotating mechanism according to the present invention;
FIG. 5 is a schematic view of the communication between the air water collecting mechanism and the water storage drip irrigation mechanism according to the present invention;
FIG. 6 is an assembled view of the rope pressing mechanism of the present invention;
fig. 7 is a schematic structural view of the solar device of the present invention.
Detailed Description
As shown in fig. 1, an air water collecting and drip irrigation device comprises an air water collecting mechanism 1, a rotating mechanism 2 and a water storage drip irrigation mechanism 3.
As shown in fig. 2 and 3, the air water collecting mechanism 1 comprises upper layer water collecting grooves 1-3, first water pipes 1-7, three-way pipes 1-8, second water pipes 1-12, front shutters 1-6, rear shutters 1-16, dew collection plates 1-18, glass plates 1-19, adsorbent beds 1-20, adsorbent bed fixing plates 1-21 and lower layer water collecting grooves 1-22; the dew collection plates 1-18, the glass plates 1-19 and the adsorbent bed fixing plates 1-21 are sequentially arranged at intervals from top to bottom, and the dew collection plates 1-18 and the glass plates 1-19 are obliquely arranged; the bottom ends of the dew collection plates 1-18 are embedded into the upper layer water collection grooves 1-3 so as to collect the dew on the upper and lower surfaces of the dew collection plates 1-18 to the maximum; the bottom ends of the glass plates 1-19 are embedded into the lower water collecting grooves 1-22; throttle air inlets 1-5 with two sides respectively fixed with the two side plates 1-2 are arranged between the top ends of the dew collection plates 1-18 and the top ends of the glass plates 1-19, or refrigeration sheets connected with a controller are fixed at the top ends of the glass plates 1-19; the throttle air inlet 1-5 is in a round table shape, and the cross section of the throttle air inlet 1-5 gradually becomes smaller from the inlet to the outlet; the front shutters 1-6 and the rear shutters 1-16 are positioned between the glass plates 1-19 and the adsorbent bed fixing plates 1-21, the front shutters 1-6 are positioned at the top end positions of the glass plates 1-19, and the rear shutters 1-16 are positioned at the bottom end positions of the glass plates 1-19; 1-18 parts of dew collection plate, 1-19 parts of glass plate, 1-21 parts of adsorbent bed fixing plate, 1-3 parts of upper layer water collection tank, 1-6 parts of front shutter and 1-16 parts of rear shutter are fixed with one side plate 1-2, and the other side is fixed with the other side plate 1-2; the two side plates are fixed on the upper section frame at a distance of 1-2; the upper section bar frame is driven to rotate by the rotating mechanism 2; the lower layer water collecting tank 1-22 is fixed on the rear louver 1-16; the front shutter driving mechanism drives the front shutters 1-6, and the rear shutter driving mechanism drives the rear shutters 1-16; both sides of the upper layer water collecting tank 1-3 and the lower layer water collecting tank 1-22 are closed; the top ends of the first water pipes 1-7 are communicated with the upper layer water collecting tank 1-3, and the top ends of the second water pipes 1-12 are communicated with the lower layer water collecting tank 1-22; the bottom ends of the first water pipe 1-7 and the second water pipe 1-12 are respectively connected with two connectors of the three-way pipe 1-8; the adsorbent bed fixing plates 1-21 are fixed with a plurality of adsorbent beds 1-20, and the adsorbent beds 1-20 are internally provided with adsorbent materials which can absorb water vapor in air and release the absorbed water vapor at high temperature.
As shown in fig. 5 and 6, the water storage drip irrigation mechanism 3 comprises a first water storage tank 3-2, a drip irrigation pipe 3-14, a cotton thread hose 3-13 and a cotton rope 3-18; a first inlet of the first water storage tank 3-2 is communicated with a third interface of a three-way pipe 1-8 in the air water collecting mechanism 1, and a second inlet is used as an external water source interface and can be connected with an external water source according to actual requirements; the drip irrigation pipe 3-14 is connected with the outlet of the first water storage tank 3-2; one end of the cotton thread hose 3-13 is inserted into the drip irrigation pipe 3-14 and fixed with the cotton rope 3-18 arranged in the drip irrigation pipe 3-14, and water is gradually infiltrated into the other end of the cotton thread hose 3-13 through the cotton rope 3-18 and then is led to the root of the plant.
Preferably, the dew collecting plates 1-18 are provided with a plurality of collecting grooves arranged at equal intervals on the top and bottom surfaces, so that the contact area with air can be increased, and more dew can be collected.
Preferably, the dew collection plate 1-18 is fixedly connected to the side plate 1-2 by a plurality of L-shaped connecting members 1-4.
Preferably, the inclination angles of the dew collection plates 1 to 18 and the glass plates 1 to 19 are each 30 degrees.
Preferably, the adsorbent beds 1-20 are provided with openings in the form of strips to allow sufficient contact between the air and the adsorbent material.
Preferably, the upper layer water pipe connecting blocks 1-17 are fixed on the upper layer water collecting grooves 1-3, and the lower layer water pipe connecting blocks 1-1 are fixed on the lower layer water collecting grooves 1-22; the top end of the first water pipe 1-7 penetrates through the upper layer water pipe connecting block 1-17 to be communicated with the upper layer water collecting tank 1-3; the top end of the second water pipe 1-12 passes through the lower layer water pipe connecting block 1-1 to be communicated with the lower layer water collecting tank 1-22.
Preferably, the front shutter driving mechanism comprises a front steering engine 1-9, a front connecting rod 1-11 and a front iron wire 1-10; front steering engines 1-9 are fixed on the upper section frame; one end of a front connecting rod 1-11 is fixed with one of the blades of the front shutter 1-6, and the other end is fixed with one end of a front iron wire 1-10; the other end of the front iron wire 1-10 is fixed with an output shaft of the front steering engine 1-9; the front steering engine 1-9 can drive the front connecting rod 1-11 to rotate by pulling the front iron wire 1-10, so that the front shutter 1-6 is opened and closed; the rear louver driving mechanism comprises rear steering gears 1-13, rear connecting rods 1-15 and rear iron wires 1-14; rear steering engines 1-13 are fixed on the upper section bar frame; one end of a rear connecting rod 1-15 is fixed with one of the blades of the rear louver 1-16, and the other end of the rear connecting rod is fixed with one end of a rear iron wire 1-14; the other end of the rear iron wire 1-14 is fixed with an output shaft of the rear steering engine 1-13; the rear steering engine 1-13 rotates to drive the rear iron wires 1-14 and the rear connecting rods 1-15 to open and close the rear shutters 1-16; the simultaneous linkage of the front louvers 1-6 and the rear louvers 1-16 may allow for ventilation or sealing of the adsorbent beds 1-20.
Preferably, as shown in fig. 4, the rotating mechanism 2 includes a motor 2-1, a first optical axis 2-3, a first synchronous pulley 2-4, a turntable upper plate 2-6, a turntable outer ring 2-8, a turntable inner ring 2-9, a turntable lower plate 2-10, a second optical axis 2-12, a second synchronous pulley 2-13 and a synchronous belt 2-14; the motor 2-1 is fixed on the motor bracket 2-15; the first optical axis 2-3 and the first bearing seat 2-5 form a rotating pair and are connected with an output shaft of the motor 2-1 through a coupler 2-2; the second optical axis 2-12 and the second bearing seat 2-11 form a revolute pair; the motor support 2-15, the first bearing seat 2-5 and the second bearing seat 2-11 are all fixed on the lower section bar frame; the first synchronous belt wheel 2-4 is fixed on the first optical axis 2-3; the second synchronous belt wheel 2-13 is fixed on the second optical axis 2-12 and is connected with the first synchronous belt wheel 2-4 through a synchronous belt 2-14; the outer ring 2-8 of the rotary table is fixed on the lower plate 2-10 of the rotary table, and the lower plate 2-10 of the rotary table is fixed on the lower section frame; the turntable upper plate 2-6 and the second optical axis 2-12 are fixed through a flange 2-7; the inner ring 2-9 of the turntable and the outer ring 2-8 of the turntable form a revolute pair and are fixed on the bottom surface of the upper plate 2-6 of the turntable; the turntable outer ring 2-8 plays a supporting role for the turntable inner ring 2-9.
Preferably, the drip irrigation pipes 3 to 14 are in the shape of inverted cones, so that the drip irrigation pipes can be conveniently inserted into soil for fixation.
Preferably, a third interface of a three-way pipe 1-8 in the air water collecting mechanism 1 is connected with one end of a fifth water pipe 3-8 through a quick joint 3-7, and the other end of the fifth water pipe 3-8 is connected with an inlet of a second water storage tank 3-9; an outlet of the second water storage tank 3-9 is communicated with a first inlet of the first water storage tank 3-2 through a third water pipe 3-4; the top of the second water storage tank 3-9 is provided with a vent hole to ensure that the pressure in the second water storage tank 3-9 is equal to the atmospheric pressure, thereby ensuring that the water in the three-way pipe 1-8 can flow down smoothly; a second electromagnetic valve 3-11 is arranged on the third water pipe 3-4; the first water storage tank 3-2 is fixed on the lower section bar frame through a first water storage tank bracket 3-3, and the second water storage tank 3-9 is fixed on the lower section bar frame through a second water storage tank bracket 3-10; a second inlet of the first water storage tank 3-2 is connected with a fourth water pipe 3-5, the fourth water pipe 3-5 is connected with an external water source, and a first electromagnetic valve 3-6 is arranged on the fourth water pipe 3-5.
Preferably, the outlet of the middle part of the first water storage tank 3-2 is connected with the first inlet of the drip irrigation pipe 3-14 through a seventh water pipe 3-17; a third electromagnetic valve 3-12 is arranged on the seventh water pipe 3-17; an outlet at the bottom of the first water storage tank 3-2 is connected with a second inlet of the drip irrigation pipe 3-14 through a sixth water pipe 3-15; a fourth electromagnetic valve 3-16 is arranged on the sixth water pipe 3-15; the first inlet position of the drip irrigation pipes 3-14 is higher than the second inlet position; a liquid level sensor connected with the controller is arranged in the first water storage tank 3-2.
More preferably, the outlet at the middle part of the first water storage tank 3-2 is connected with the seventh water pipe 3-17 through the rubber mat pagoda head 3-1, and the outlet at the bottom of the first water storage tank 3-2 is connected with the sixth water pipe 3-15 through the rubber mat pagoda head 3-1.
Preferably, a rope pressing mechanism is further arranged, and the rope pressing mechanism comprises a rope pressing support 3-19, a first rope pressing block 3-20, a spring 3-21, a hose connector 3-22, a first connecting rod 3-23, a rope pressing steering engine 3-24, a second connecting rod 3-25, a rope pressing limiting block 3-26 and a second rope pressing block 3-27; the drip irrigation pipes 3-14 are fixed on the rope pressing brackets 3-19; the rope pressing steering engine 3-24 is fixed on the rope pressing support 3-19, an output shaft of the rope pressing steering engine 3-24 is fixed with one end of the first connecting rod 3-23, and the other end of the first connecting rod 3-23 is hinged with one end of the second connecting rod 3-25; the other end of the second connecting rod 3-25 is hinged with a rope pressing limiting block 3-26; the rope pressing limiting blocks 3-26 and the rope pressing supports 3-19 form a sliding pair; the first rope pressing block 3-20 and the second rope pressing block 3-27 and the rope pressing support 3-19 form a sliding pair, and are connected with the rope pressing limiting block 3-26 through a spring 3-21, and the first rope pressing block 3-20 is lower than the second rope pressing block 3-27; three groups of cotton thread hoses 3-13 and cotton ropes 3-18 are arranged in the water storage drip irrigation mechanism 3, three inlets of hose joints 3-22 are respectively connected with the other ends of three cotton rope hoses 3-13, outlets of the hose joints 3-22 are connected with drip irrigation rope pipes, and the drip irrigation rope pipes guide water to the roots of plants; the first rope pressing block 3-20 and the second rope pressing block 3-27 are respectively positioned above one cotton rope hose 3-13.
Preferably, as shown in fig. 7, a solar device 4 is further provided, wherein the solar device 4 comprises a solar panel 4-1, a wind direction sensor 4-2 and a sensor connecting block 4-3; the solar panel 4-1 is fixed on the upright column and provides electric energy for the controller, the rotating mechanism 2, the front shutter driving mechanism, the rear shutter driving mechanism and the rope pressing mechanism, in particular for the controller, a motor 2-1 in the rotating mechanism 2, a front steering engine 1-9 of the front shutter driving mechanism, a rear steering engine 1-13 of the rear shutter driving mechanism and a rope pressing steering engine 3-24 of the rope pressing mechanism, so that the problem of power supply difficulty in desert can be solved; preferably, the inclination angle of the solar panel 4-1 is 40 degrees; the wind direction sensor 4-2 is fixed at the top end of the upright post through the sensor connecting block 4-3, the signal output end of the wind direction sensor 4-2 is connected with the controller, the wind direction can be detected, the rotating mechanism 2 can adjust the orientation of the air water collecting mechanism 1, the air water collecting mechanism 1 always faces the wind, and the conversion efficiency is improved; the photosensitive sensor is fixed on the upright post, and the signal output end of the photosensitive sensor is connected with the controller and used for detecting whether the light source is in the daytime or at night; the motor 2-1, the front steering engine 1-9, the rear steering engine 1-13, the rope pressing steering engine 3-24 and each electromagnetic valve are controlled by a controller; wherein, the wind direction sensor 4-2 and each electromagnetic valve are powered by the controller.
A method for water collection and drip irrigation of an air water collection and drip irrigation device comprises the following specific steps:
the water collecting process comprises the following steps:
when the wind direction sensor 4-2 detects the wind direction, a signal is fed back to the controller, and the controller controls the rotating mechanism 2 to adjust the direction of the air water collecting mechanism 1, so that the top ends of the dew water collecting plates 1-18, the top ends of the glass plates 1-19 and the front shutters 1-6 always face the wind.
When the photosensitive sensor detects that the blind is at night, the controller controls the front blind driving mechanism to drive the blades of the front blinds 1 to 6 to be opened and controls the rear blind driving mechanism to drive the blades of the rear blinds 1 to 16 to be opened; the water vapor in the wind entering the front shutters 1 to 6 and passing through the adsorbent beds 1 to 20 is absorbed by the adsorbent material in the adsorbent beds 1 to 20; when wind passes through the glass plates 1-19 and the dew-water collecting plates 1-18, dew-water accumulated on the glass plates 1-19 flows into the lower-layer water collecting grooves 1-22, and dew-water accumulated on the dew-water collecting plates 1-18 flows into the upper-layer water collecting grooves 1-3.
When the photosensitive sensor detects that the blind is in the daytime, the controller controls the front blind driving mechanism to drive the blades of the front blinds 1 to 6 to close and controls the rear blind driving mechanism to drive the blades of the rear blinds 1 to 16 to close; as the temperature gradually rises during the day, the water in the adsorptive material in the adsorbent beds 1-20 gradually evaporates into water vapor; when the throttling air inlet 1-5 is arranged, the air pressure entering the throttling air inlet 1-5 is reduced due to the throttling expansion principle of the throttling air inlet 1-5, the speed is accelerated, the temperature is reduced, the temperature of the glass plate 1-19 is lower than that of water vapor, and the water vapor is condensed into water drops to flow into the lower-layer water collecting tank 1-22 when meeting the bottom surface of the glass plate 1-19; if the refrigeration piece is arranged, the glass plates 1-19 are cooled, and the water vapor is condensed into water drops to flow into the lower-layer water collecting grooves 1-22 when meeting the bottom surfaces of the glass plates 1-19.
The drip irrigation process comprises the following steps:
water in the lower layer water collecting tank 1-22 and the upper layer water collecting tank 1-3 flows into the second water storage tank 3-9 for storage; when the liquid level sensor detects that the water level of the first water storage tank 3-2 is lower than a set water level point (the set water level point is necessarily higher than the liquid level height of an inlet of the sixth water pipe 3-15), the controller controls the third electromagnetic valve 3-12 and the fourth electromagnetic valve 3-16 to keep a closed state, the second electromagnetic valve 3-11 is opened, and water flows into the first water storage tank 3-2 from the second water storage tank 3-9; wherein, if an external water source exists and the water in the second water storage tank 3-9 is not enough to make the water level of the first water storage tank 3-2 higher than the set water level point, the first electromagnetic valve 3-6 can be opened to make the first water storage tank 3-2 filled. When the liquid level sensor detects that the water level of the first water storage tank 3-2 is higher than a set water level point, the second electromagnetic valve 3-11 is closed after being continuously opened for a set time; then the third electromagnetic valve 3-12 and the fourth electromagnetic valve 3-16 are opened, water in the first water storage tank 3-2 flows into the drip irrigation pipe 3-14 through the sixth water pipe 3-15 (the liquid level of the inlet of the seventh water pipe 3-17 is higher, and the water inevitably flows out of the sixth water pipe 3-15), until the water level in the drip irrigation pipe 3-14 is higher than the outlet of the seventh water pipe 3-17, the first water storage tank 3-2 is in a completely closed state, and the water level in the drip irrigation pipe 3-14 is not changed any more; when the plant roots are lack of water, the drip irrigation rope pipes achieve a drip irrigation effect on the plant roots, and water in the drip irrigation rope pipes is sucked from the drip irrigation pipes 3-14 through the cotton ropes 3-18 and is transmitted through the cotton thread hoses 3-13 and the hose connectors 3-22. When the water level in the drip irrigation pipe 3-14 drops below the outlet of the seventh water pipe 3-17 due to plant drip irrigation, the sixth water pipe 3-15 supplies the water in the first water storage tank 3-2 to the drip irrigation pipe again until the water level in the drip irrigation pipe 3-14 is higher than the outlet of the seventh water pipe 3-17, and the water level in the drip irrigation pipe 3-14 is in a stable state again and does not change.
Preferably, in the drip irrigation process, the number of the cotton thread hoses 3-13 and the cotton ropes 3-18 for supplying water can be adjusted according to different water requirements of different plants in different growth stages, and the number is as follows: when the water demand of the plant is large, the three groups of cotton hose 3-13 and cotton rope 3-18 supply water simultaneously; when the water demand of the plant is moderate, the rope pressing steering engine 3-24 drives the rope pressing limiting blocks 3-26 to move downwards for a set distance through the first connecting rods 3-23 and the second connecting rods 3-25, so that the first rope pressing blocks 3-20 press the cotton ropes below, but the first rope pressing blocks 3-20 do not completely press the cotton ropes below due to the existence of the springs 3-21; the second rope pressing block 3-27 is higher than the first rope pressing block 3-20 and does not press the cotton rope below the second rope pressing block 3-27; when the water demand of the plant is low, the rope pressing steering engine 3-24 continues to drive the rope pressing limiting blocks 3-26 to move downwards, so that the first rope pressing blocks 3-20 completely press the cotton rope below, and the second rope pressing blocks 3-27 also press the cotton rope below (the second rope pressing blocks 3-27 can completely press the cotton rope below or can not completely press the cotton rope below depending on the situation).
Claims (10)
1. The utility model provides an air catchment and drip irrigation device, drips irrigation the mechanism including air catchment mechanism, rotary mechanism and water storage, its characterized in that: the air water collecting mechanism comprises an upper layer water collecting tank, a first water pipe, a three-way pipe, a second water pipe, a front shutter, a rear shutter, a dew collecting plate, a glass plate, an adsorbent bed fixing plate and a lower layer water collecting tank; the dew collection plate, the glass plate and the adsorbent bed fixing plate are sequentially arranged at intervals from top to bottom, and the dew collection plate and the glass plate are obliquely arranged; the bottom end of the dew collecting plate is embedded into the upper layer water collecting tank, and the bottom end of the glass plate is embedded into the lower layer water collecting tank; throttle air inlets with two sides respectively fixed with the two side plates are arranged between the top end of the dew collection plate and the top end of the glass plate, or a refrigerating sheet connected with a controller is fixed at the top end of the glass plate; the front shutter and the rear shutter are positioned between the glass plate and the adsorbent bed fixing plate, the front shutter is positioned at the top end of the glass plate, and the rear shutter is positioned at the bottom end of the glass plate; one side of each of the dew collection plate, the glass plate, the adsorbent bed fixing plate, the upper layer water collecting tank, the front louver and the rear louver is fixed with one side plate, and the other side of each of the dew collection plate, the glass plate, the adsorbent bed fixing plate, the upper layer water collecting tank, the front louver and the rear louver is fixed with the other side plate; the two side plates are fixed on the upper section bar frame at intervals; the upper section bar frame is driven to rotate by the rotating mechanism; the lower layer water collecting tank is fixed on the rear louver; the front shutter driving mechanism drives the front shutter, and the rear shutter driving mechanism drives the rear shutter; both sides of the upper layer water collecting tank and the lower layer water collecting tank are sealed; the top end of the first water pipe is communicated with the upper layer water collecting tank, and the top end of the second water pipe is communicated with the lower layer water collecting tank; the bottom ends of the first water pipe and the second water pipe are respectively connected with two connectors of the three-way pipe; a plurality of adsorbent beds are fixed on the adsorbent bed fixing plate, and adsorbent materials are arranged in the adsorbent beds;
the water storage drip irrigation mechanism comprises a first water storage tank, a drip irrigation pipe, a cotton thread hose and a cotton rope; a first inlet of the first water storage tank is communicated with a third interface of a three-way pipe in the air water collecting mechanism, and a second inlet is used as an external water source interface and is in a closed state when not used; the drip irrigation pipe is connected with the outlet of the first water storage tank; one end of the cotton thread hose is inserted into the drip irrigation pipe and is fixed with the cotton rope arranged in the drip irrigation pipe.
2. An air water collecting and drip irrigation device according to claim 1, wherein: the upper layer water pipe connecting block is fixed on the upper layer water collecting tank, and the lower layer water pipe connecting block is fixed on the lower layer water collecting tank; the top end of the first water pipe penetrates through the upper layer water pipe connecting block to be communicated with the upper layer water collecting tank; the top end of the second water pipe penetrates through the lower-layer water pipe connecting block and is communicated with the lower-layer water collecting tank.
3. An air drip irrigation and water collection device according to claim 1 and further comprising: the front shutter driving mechanism comprises a front steering engine, a front connecting rod and a front iron wire; the front steering engine is fixed on the upper section frame; one end of the front connecting rod is fixed with one blade of the front shutter, and the other end of the front connecting rod is fixed with one end of the front iron wire; the other end of the front iron wire is fixed with an output shaft of the front steering engine; the rear louver driving mechanism comprises a rear steering engine, a rear connecting rod and a rear iron wire; the rear steering engine is fixed on the upper section bar frame; one end of the rear connecting rod is fixed with one blade of the rear shutter, and the other end of the rear connecting rod is fixed with one end of a rear iron wire; the other end of the rear iron wire is fixed with an output shaft of the rear steering engine.
4. An air water collecting and drip irrigation device according to claim 1, wherein: the rotating mechanism comprises a motor, a first optical axis, a first synchronous belt wheel, a turntable upper plate, a turntable outer ring, a turntable inner ring, a turntable lower plate, a second optical axis, a second synchronous belt wheel and a synchronous belt; the motor is fixed on the motor bracket; the first optical axis and the first bearing seat form a rotating pair and are connected with an output shaft of the motor through a coupler; the second optical axis and the second bearing seat form a revolute pair; the motor bracket, the first bearing seat and the second bearing seat are all fixed on the lower section bar frame; the first synchronous belt wheel is fixed on a first optical axis; the second synchronous belt wheel is fixed on the second optical axis and is connected with the first synchronous belt wheel through a synchronous belt; the outer ring of the rotary table is fixed on the lower plate of the rotary table, and the lower plate of the rotary table is fixed on the lower section frame; the upper plate of the turntable is fixed with the second optical axis through a flange plate; the inner ring and the outer ring of the turntable form a revolute pair and are fixed on the bottom surface of the upper plate of the turntable.
5. An air drip irrigation and water collection device according to claim 1 and further comprising: a third interface of a three-way pipe in the air water collecting mechanism is connected with one end of a fifth water pipe through a quick joint, and the other end of the fifth water pipe is connected with an inlet of a second water storage tank; the outlet of the second water storage tank is communicated with the first inlet of the first water storage tank through a third water pipe; the top of the second water storage tank is provided with an air vent; a second electromagnetic valve is arranged on the third water pipe; the first water storage tank is fixed on the lower section bar frame through a first water storage tank bracket, and the second water storage tank is fixed on the lower section bar frame through a second water storage tank bracket; the second inlet of the first water storage tank is connected with a fourth water pipe, the fourth water pipe is connected with an external water source, and a first electromagnetic valve is arranged on the fourth water pipe.
6. An air collection and drip irrigation device according to claim 5 and further comprising: an outlet in the middle of the first water storage tank is connected with a first inlet of the drip irrigation pipe through a seventh water pipe; a third electromagnetic valve is arranged on the seventh water pipe; an outlet at the bottom of the first water storage tank is connected with a second inlet of the drip irrigation pipe through a sixth water pipe; a fourth electromagnetic valve is arranged on the sixth water pipe; the first inlet position of the drip irrigation pipe is higher than the second inlet position; a liquid level sensor connected with the controller is arranged in the first water storage tank.
7. An air collection and drip irrigation device according to claim 6 and further comprising: the rope pressing mechanism comprises a rope pressing bracket, a first rope pressing block, a spring, a hose connector, a first connecting rod, a rope pressing steering engine, a second connecting rod, a rope pressing limiting block and a second rope pressing block; the drip irrigation pipe is fixed on the pressing rope bracket; the rope pressing steering engine is fixed on the rope pressing support, an output shaft of the rope pressing steering engine is fixed with one end of the first connecting rod, and the other end of the first connecting rod is hinged with one end of the second connecting rod; the other end of the second connecting rod is hinged with the rope pressing limiting block; the rope pressing limiting block and the rope pressing bracket form a sliding pair; the first rope pressing block and the second rope pressing block form a sliding pair with the rope pressing bracket, and are connected with the rope pressing limiting block through springs, and the first rope pressing block is lower than the second rope pressing block; the water storage drip irrigation mechanism is provided with three groups of cotton thread hoses and cotton ropes, three inlets of a hose joint are respectively connected with the other ends of the three cotton rope hoses, and an outlet of the hose joint is connected with a drip irrigation rope pipe; the first rope pressing block and the second rope pressing block are respectively positioned above one cotton rope hose.
8. An air collection and drip irrigation device according to claim 7 and further comprising: the solar energy device comprises a solar panel, a wind direction sensor and a sensor connecting block; the solar panel is fixed on the upright column and provides electric energy for the controller, the rotating mechanism, the front shutter driving mechanism, the rear shutter driving mechanism and the rope pressing mechanism; the wind direction sensor is fixed at the top end of the upright post through a sensor connecting block, and the signal output end of the wind direction sensor is connected with the controller; the photosensitive sensor is fixed on the upright post, and the signal output end of the photosensitive sensor is connected with the controller.
9. The method for water collection and drip irrigation of an air collection and drip irrigation device according to claim 8, wherein the method comprises the steps of: the method comprises the following specific steps:
the water collecting process comprises the following steps:
when the wind direction sensor detects the wind direction, the signal is fed back to the controller, and the controller controls the rotating mechanism to adjust the direction of the air water collecting mechanism, so that the top end of the dew collecting plate, the top end of the glass plate and the front louver are always windward;
when the photosensitive sensor detects that the blind is at night, the controller controls the front louver driving mechanism to drive the blades of the front louver to be opened and controls the rear louver driving mechanism to drive the blades of the rear louver to be opened; the water vapor in the wind entering the front shutter and passing through the adsorbent bed is absorbed by the adsorbent material in the adsorbent bed; when wind passes through the glass plate and the dew collecting plate, dew formed on the glass plate flows into the lower layer water collecting tank, and dew formed on the dew collecting plate flows into the upper layer water collecting tank;
when the photosensitive sensor detects that the blind is in the daytime, the controller controls the front blind driving mechanism to drive the blades of the front blind to close and controls the rear blind driving mechanism to drive the blades of the rear blind to close; as the temperature gradually increases during the day, water in the adsorbent material in the adsorbent bed gradually evaporates into water vapor; when the throttling air inlet is arranged, due to the throttling expansion principle of the throttling air inlet, the air pressure entering the throttling air inlet is reduced, the speed is increased, the temperature is reduced, the temperature of the glass plate is lower than that of water vapor, and the water vapor is condensed into water drops to flow into the lower-layer water collecting tank when meeting the bottom surface of the glass plate; if the refrigeration piece is arranged, the glass plate is cooled, and the water vapor is condensed into water drops to the lower-layer water collecting tank when meeting the bottom surface of the glass plate;
the drip irrigation process comprises the following steps:
water in the lower layer water collecting tank and the upper layer water collecting tank flows into a second water storage tank for storage; when the liquid level sensor detects that the water level of the first water storage tank is lower than a set water level point, the controller controls the third electromagnetic valve and the fourth electromagnetic valve to be kept in a closed state, the second electromagnetic valve is opened, and water flows into the first water storage tank from the second water storage tank; if an external water source exists and the water in the second water storage tank is not enough to enable the water level of the first water storage tank to be higher than a set water level point, the first electromagnetic valve is opened to enable the first water storage tank to be filled with water; when the liquid level sensor detects that the water level of the first water storage tank is higher than a set water level point, the second electromagnetic valve is closed after being continuously opened for a set time; then the third electromagnetic valve and the fourth electromagnetic valve are opened, water in the first water storage tank flows into the drip irrigation pipe through the sixth water pipe until the water level in the drip irrigation pipe is higher than the outlet of the seventh water pipe, the first water storage tank is completely sealed, and the water level in the drip irrigation pipe is not changed any more; when the plant roots are lack of water, the drip irrigation rope pipe realizes drip irrigation on the plant roots, and water in the drip irrigation rope pipe is absorbed from the drip irrigation pipe by a cotton rope and is transmitted through a cotton thread hose and a hose joint; when the water level in the drip irrigation pipe is reduced to the position below the seventh water pipe outlet due to the drip irrigation plants, the sixth water pipe supplies the water in the first water storage tank to the drip irrigation pipe again until the water level in the drip irrigation pipe is higher than the seventh water pipe outlet, and the water level in the drip irrigation pipe is in a stable state again and does not change any more.
10. The method for water collection and drip irrigation of an air collection and drip irrigation device according to claim 9, wherein: drip irrigation the in-process, carry out the cotton thread hose and the cotton rope quantity that supply water according to the different regulation of plant water demand, specifically do: when the water demand of the plant is large, the three groups of cotton hose and cotton rope supply water simultaneously; when the water demand of the plants is moderate, the rope pressing steering engine drives the rope pressing limiting block to move downwards for a set distance through the first connecting rod and the second connecting rod, so that the first rope pressing block presses the cotton rope below, but the first rope pressing block does not completely press the cotton rope below due to the existence of the spring; the second rope pressing block is higher than the first rope pressing block and does not press the cotton rope below the second rope pressing block; when the water demand of the plant is low, the rope pressing steering engine continues to drive the rope pressing limiting block to move downwards, so that the first rope pressing block completely compresses the cotton rope below the rope pressing steering engine, and the second rope pressing block also presses the cotton rope below the rope pressing steering engine.
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