CN117307754A - Automatic water flow switching valve - Google Patents
Automatic water flow switching valve Download PDFInfo
- Publication number
- CN117307754A CN117307754A CN202311490725.9A CN202311490725A CN117307754A CN 117307754 A CN117307754 A CN 117307754A CN 202311490725 A CN202311490725 A CN 202311490725A CN 117307754 A CN117307754 A CN 117307754A
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- China
- Prior art keywords
- drip irrigation
- micro
- sprinkling
- irrigation
- water outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 176
- 238000003973 irrigation Methods 0.000 claims abstract description 214
- 230000002262 irrigation Effects 0.000 claims abstract description 212
- 239000003621 irrigation water Substances 0.000 claims abstract description 91
- 239000007921 spray Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 5
- 235000013399 edible fruits Nutrition 0.000 abstract description 8
- 239000000575 pesticide Substances 0.000 abstract description 7
- 238000005507 spraying Methods 0.000 abstract description 6
- 230000004720 fertilization Effects 0.000 abstract description 3
- 235000013311 vegetables Nutrition 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 19
- 239000003337 fertilizer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009342 intercropping Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
Abstract
The invention relates to a water flow automatic switching valve which comprises a valve body, wherein a water inlet channel, a drip irrigation water outlet channel, a micro-spray irrigation water outlet channel and an internal cavity are arranged in the valve body, the water inlet channel, the drip irrigation water outlet channel and the micro-spray irrigation water outlet channel are communicated through the internal cavity, a drip irrigation valve core which is closed along with the increase of water inlet pressure is arranged in the drip irrigation water outlet channel, a micro-spray irrigation valve core which is opened along with the increase of water inlet pressure is arranged in the micro-spray irrigation water outlet channel, when the drip irrigation valve core is opened, the micro-spray irrigation valve core is closed, and when the drip irrigation valve core is closed, the micro-spray irrigation valve core is opened. The valve can effectively realize free switching of two irrigation modes of micro-irrigation and drip irrigation by only adjusting water pressure, has simple structure, convenient maintenance and low cost, and can be well applied to high-efficiency water-saving irrigation and precise fertilization and pesticide spraying of economic crops such as agricultural fruit trees, vegetables, flowers, seedlings and the like.
Description
Technical Field
The invention relates to an automatic water flow switching valve, and belongs to the field of valves.
Background
Valves are currently available in a wide variety of fields, such as butterfly valves, ball valves, stop valves, etc., and these valves have different characteristics, but share a common point: the water flow direction is controlled in one direction, namely, the water flow direction is fixed, the outlet is single, and the opening and closing of the valve are manually adjusted, so that the automatic change of the water flow direction along with the change of the water supply pressure cannot be effectively realized. Drip irrigation is one of advanced water-saving irrigation technologies, which is a method for uniformly and accurately dripping irrigation water with a certain pressure into the soil surface near the root area of crops or the soil layer where the root system of the crops is positioned by dripping the irrigation water with a small flow rate to the last pipeline in facilities and the drippers arranged on the last pipeline through a water conveying pipeline and a water distributing pipeline, belongs to a local irrigation method, can accurately irrigate and fertilize the root of the crops, and has the water supply pressure required by the drip irrigation of 0.1MPa; the micro-sprinkling irrigation is another advanced water-saving irrigation technology, and is a water-sprinkling method for uniformly and accurately sprinkling pressurized water on branches and leaves of each plant or on the soil surface around the root system of the plant by means of a micro-sprinkling nozzle which is conveyed to the last pipeline in the facility by a water conveying pipeline and a water distributing pipeline, wherein the water supply pressure required by the micro-sprinkling irrigation is 0.2-0.3MPa, so that the micro-sprinkling irrigation can irrigate, fertilize and foliar spray economic crops such as fruit trees, vegetables and the like, and can regulate microclimate in the field and lighten the occurrence of plant diseases and insect pests.
Aiming at different crops, the water-saving irrigation system with drip irrigation and micro-sprinkling irrigation effects is configured for efficient water saving, fertilizer saving, pesticide saving, precise irrigation, fertilizer application and pesticide application, yield improvement and quality improvement, and maximization of yield benefits, and different irrigation and fertilizer and pesticide spraying modes are required to be arranged according to the characteristics of the crops. Because the working pressure of the drip irrigation system and the micro-spray irrigation system is larger, if two different modes are required to be simultaneously arranged on the same planted crop, two sets of irrigation systems are required to be simultaneously input, so that the land utilization space is occupied, the equipment input in the earlier stage is increased, and the requirements of energy conservation and modern development are not met. If only one irrigation system is matched, any one irrigation system can not simultaneously meet the application requirements of efficient irrigation, precise fertilization and foliage spraying.
The three elements of the irrigation system are water source engineering, a water pump, matched power equipment, a pipeline system and accessories. The pipeline system and fittings are necessarily different in different irrigation modes, but the water source engineering, the water pump and the matched power equipment can be simultaneously used in two different irrigation modes. The valve is used as an indispensable link in the irrigation system, plays roles in controlling the water flow direction and the water flow circulation and the partition, and maintains the stable operation of the irrigation system. Therefore, on the premise of sharing a set of irrigation system water source engineering, a water pump and matched power equipment, a valve for automatically reversing along with water inflow pressure is researched, and a diversion control pipeline of a drip irrigation system and a micro-spray irrigation system is connected through the valve, so that the mutual switching and normal operation of two different irrigation technical modes of drip irrigation and micro-spray irrigation can be realized, and the valve has important research significance and practical application value in obviously reducing the number of matched equipment of the irrigation system, integrally investment, improving the utilization efficiency of irrigation water and the like.
Disclosure of Invention
The invention aims to design a valve capable of automatically switching the direction of a water flow channel along with pressure induction, so that a drip irrigation system and a micro-sprinkling irrigation system can flexibly switch on and off working states and mutually, and the technical problem that current economic crops such as fruit trees, vegetables and the like cannot reasonably and conveniently irrigate, fertilize and spray medicines is solved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a rivers automatic switch-over valve, includes the valve body, the valve body inside be provided with inlet channel, drip irrigation outlet channel, micro-spray water outlet channel and inside cavity, inlet channel, drip irrigation outlet channel and micro-spray water outlet channel pass through inside cavity intercommunication, drip irrigation outlet channel in be provided with the drip irrigation case of closing along with the inlet pressure increases, micro-spray water outlet channel in be provided with the micro-spray case of opening along with inlet pressure increases, the drip irrigation case open when opening, the micro-spray case close, drip irrigation case open when closing.
Preferably: the drip irrigation valve core comprises a drip irrigation external pipe hoop, an elastic membrane and a water guide column, the drip irrigation water outlet channel comprises a drip irrigation water inlet cavity and a drip irrigation water outlet cavity, the water guide column is arranged in the drip irrigation water inlet cavity, the elastic membrane is arranged in the drip irrigation water outlet cavity, one end of the drip irrigation external pipe hoop is connected with the drip irrigation water outlet channel, the other end of the drip irrigation external pipe hoop is connected with the drip irrigation water outlet pipe, the water guide column is fixed with the elastic membrane, the diameter of the water guide column is smaller than that of a water flow inlet pipeline, and the diameter of the elastic membrane is larger than or equal to that of the water guide column and smaller than that of the drip irrigation water outlet cavity, and the thickness of the elastic membrane is smaller than the length of the drip irrigation water outlet cavity.
Preferably: the water guide column is prepared from a material with the density not more than that of water.
Preferably: the micro-sprinkling valve core comprises a micro-sprinkling external pipe hoop, a piston, a sprinkling spring and a sprinkling fixed plate, wherein a sprinkling water permeable hole is formed in the sprinkling fixed plate, the micro-sprinkling water outlet channel comprises a micro-sprinkling water inlet cavity and a micro-sprinkling water outlet cavity, one end of the micro-sprinkling external pipe hoop is connected with the micro-sprinkling water outlet channel, the other end of the micro-sprinkling external pipe hoop is connected with a micro-sprinkling water outlet pipe, one end of the sprinkling spring is fixed with the piston, the other end of the sprinkling spring is fixed with the sprinkling fixed plate, the diameter of the piston is consistent with the diameter of the micro-sprinkling water inlet cavity, the piston is located in the micro-sprinkling water inlet cavity when the micro-sprinkling valve core is closed, the sprinkling fixed plate is arranged in the micro-sprinkling water outlet cavity, and the diameter of the sprinkling fixed plate is smaller than or equal to the diameter of the micro-sprinkling water outlet cavity, and the diameter of the sprinkling fixed plate is larger than the diameter of the micro-sprinkling water outlet pipe.
Preferably: the micro-sprinkling irrigation valve core also comprises a water-proof ring, and the sprinkling irrigation spring is arranged in the water-proof ring.
Preferably: the utility model provides a drip irrigation case including drip irrigation external pipe hoop, closing plate, sealing ring, drip irrigation spring, drip irrigation fixed plate and drip irrigation water permeable hole, drip irrigation water outlet channel including drip irrigation water inlet cavity and drip irrigation water outlet cavity, drip irrigation external pipe hoop one end with drip irrigation water outlet channel connect, drip irrigation external pipe hoop other end with drip irrigation water outlet piping connection, one end and the closing plate of drip irrigation spring fix together, the other end of drip irrigation spring with the fixed plate fix together, the sealing ring with the closing plate fix together, the diameter of closing plate be not less than the diameter of drip irrigation water inlet cavity, the fixed plate set up in the water outlet cavity that drips irrigation, the diameter of drip irrigation fixed plate be less than or equal to the diameter of drip irrigation water outlet cavity, the diameter of drip irrigation fixed plate be greater than little sprinkling irrigation water outlet pipe diameter, the water permeable hole set up in the center of drip irrigation fixed plate, and the diameter of water permeable hole be less than the closing plate diameter.
Preferably: the outside of the valve body is a smooth radian metal shell.
The invention has the beneficial effects that:
the invention realizes the purpose of automatically switching irrigation modes by controlling two sets of different irrigation pipelines simultaneously on the premise of a junction of an irrigation system through the valve which changes the direction of the water outlet flow channel along with the pressure change. Through the binary channels design of automatic valve, connect drip irrigation pipeline and little sprinkling irrigation pipeline simultaneously, water source pivot and water pump engineering among the reuse irrigation system reach the purpose that improves the land utilization in the warmhouse booth, increase irrigation system irrigation water utilization. When the water flow pressure is lower, the drip irrigation pipeline valve is opened, after the water flow pressure continuously rises to a certain value, the drip irrigation pipeline valve is closed, the micro-sprinkling pipeline valve is opened, and the bidirectional control of the valve can be achieved through the elastic diaphragm and the sprinkling spring, so that the process is simple, the manufacturing cost is low, and the operation is simple and convenient.
The invention not only meets the irrigation mode of intercropping crops with two different water demands, but also solves the problem that the existing fruit tree has no reasonable and convenient irrigation and application technology, promotes the yield increase and high yield of crops, and implements omnibearing space three-dimensional protection on planted crops. Meanwhile, the utilization efficiency of the land is improved to a certain extent, irrigation water resources are saved, the investment for construction of a drip irrigation system is also saved, the outflow direction of water flow in the valve can be automatically adjusted along with the change of the pressure in the pipeline, the complicated manual operation is avoided, and the energy-saving, specialized, modern, accurate and diversified development of facility agriculture in China is promoted.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a valve according to the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic view of another construction of the valve of the present invention;
in the figure, 1 is the sprinkling irrigation fixed plate, 2 is the sprinkling irrigation hole that permeates water, 3 is the sprinkling irrigation spring, 4 is the water-proof ring, 5 is the piston, 6 is the internal cavity, 7 is the valve body, 8 is the metal casing, 9 is the water inlet channel, 10 is the external ferrule of micro-sprinkling irrigation, 11 is the water outlet cavity of micro-sprinkling irrigation, 12 is the water inlet cavity of micro-sprinkling irrigation, 13 is the water inlet cavity of drip irrigation, 14 is the water outlet cavity of drip irrigation, 15 is the external ferrule of drip irrigation, 16 is the elastic membrane, 17 is the water guide column, 18 is the closing plate, 19 is the sealing ring, 20 is the drip irrigation spring, 21 is the fixed plate of drip irrigation, 22 is the hole of permeating water of drip irrigation.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in figures 1 and 2, the automatic water flow switching valve comprises a valve body 7, wherein the structure of the valve body 7 has an important influence on the service life of the valve, and the metal shell 8 with smooth radian is arranged outside the valve body 7, so that the stability of an internal structure is ensured, the service life of the valve is prolonged, and the operation reliability of an irrigation system is improved.
The valve body 7 inside be provided with inlet channel 9, drip irrigation the outlet channel, little sprinkling irrigation outlet channel and inside cavity 6, inlet channel 9, drip irrigation the outlet channel and little sprinkling irrigation outlet channel pass through inside cavity 6 intercommunication, drip irrigation the outlet channel in be provided with the drip irrigation case of closing along with inlet pressure increases, little sprinkling irrigation outlet channel in be provided with the little sprinkling irrigation case of opening along with inlet pressure increases, drip irrigation case open when opening, little sprinkling irrigation case close, drip irrigation case open when closing.
The drip irrigation valve core comprises a drip irrigation external pipe hoop 15, an elastic membrane 16 and a water guide column 17, wherein the drip irrigation water outlet channel comprises a drip irrigation water inlet cavity 13 and a drip irrigation water outlet cavity 14, the water guide column 17 is arranged in the drip irrigation water inlet cavity 13, the elastic membrane 16 is arranged in the drip irrigation water outlet cavity 14, one end of the drip irrigation external pipe hoop 15 is connected with the drip irrigation water outlet channel, the other end of the drip irrigation external pipe hoop 15 is connected with a drip irrigation water outlet pipe, the water guide column 17 and the elastic membrane 16 are fixed together, the diameter of the water guide column 17 is smaller than the diameter of a water flow inlet pipeline, the diameter of the elastic membrane 16 is larger than or equal to the diameter of the water guide column 17 and smaller than the diameter of the drip irrigation water outlet cavity 14, and the thickness of the elastic membrane 16 is smaller than the length of the drip irrigation water outlet cavity 14.
The water guide column 17 is made of a material with a density not greater than that of water. The weight of the water guide 17 has an important effect on the movement of the water guide 17 and if made of metal, it is horizontally placed at the time of installation without affecting the water output. But the weight is large and the adjustment is not easy, so that the material which can float in water is better.
The micro-sprinkling irrigation valve core comprises a micro-sprinkling irrigation external pipe hoop 10, a piston 5, a sprinkling irrigation spring 3 and a sprinkling irrigation fixed plate 1, wherein a sprinkling irrigation water permeable hole 2 is formed in the sprinkling irrigation fixed plate 1, a micro-sprinkling irrigation water outlet channel comprises a micro-sprinkling irrigation water inlet cavity 12 and a micro-sprinkling irrigation water outlet cavity 11, one end of the micro-sprinkling irrigation external pipe hoop 10 is connected with the micro-sprinkling irrigation water outlet channel, the other end of the micro-sprinkling irrigation external pipe hoop 10 is connected with a micro-sprinkling irrigation water outlet pipe, one end of the sprinkling irrigation spring 3 is fixed with the piston 5, the other end of the sprinkling irrigation spring 3 is fixed with the sprinkling irrigation fixed plate 1, the diameter of the piston 5 is consistent with the diameter of the micro-sprinkling irrigation water inlet cavity 12, the piston 5 is located in the micro-sprinkling irrigation water inlet cavity 12 when the micro-sprinkling irrigation valve core is closed, the sprinkling irrigation fixed plate 1 is arranged in the micro-sprinkling irrigation water outlet cavity 11, and the diameter of the sprinkling irrigation fixed plate 1 is smaller than or equal to the diameter of the micro-sprinkling irrigation water outlet cavity 11, and the diameter of the sprinkling irrigation fixed plate 1 is larger than the diameter of the micro-sprinkling irrigation water outlet pipe.
The micro-spray irrigation valve core further comprises a water-proof ring 4, and the spray irrigation spring 3 is arranged in the water-proof ring 4. The water-proof ring 4 is arranged to effectively protect the spray irrigation spring 3, so that the service life of the spray irrigation spring is effectively prolonged. The diameter of the piston 5 is identical with that of the water-proof ring 4, or slightly larger than that of the water-proof ring 4 and smaller than that of the external micro-spray irrigation water pipe. The distance from the top of the water-proof ring 4 to the top of the micro-spray water outlet channel is larger than the thickness of the piston 5, so that water can smoothly flow out.
When water flow enters the valve, the water pressure is relatively low, the water inlet pressure is below 2 kg, the micro-sprinkling irrigation valve core is in an open state, only the drip irrigation valve core forms a water flow passage, and the water flow enters the drip irrigation pipeline through the drip irrigation valve core to perform drip irrigation operation. When the water inflow pressure is gradually increased to more than two kilograms, the larger water flow pressure is applied to the water guide column 17 in the drip irrigation diversion direction, and the water guide column 17 tightly presses the elastic membrane 16 on the drip irrigation water outlet, so that water cannot pass through, and the drip irrigation valve core is in a closed state. Under the water pressure, the water pressure extrudes the piston 5, so that the spray spring 3 is compressed, the piston 5 moves upwards, the micro spray valve core forms a water flow passage, and water flow can be converged into the micro spray pipe through the flow guide flow passage to perform micro spray fertilization and pesticide spraying. When the valve is closed, the internal water pressure of the valve is zero, and the water guide column 17 of the drip irrigation valve core and the piston 5 of the micro-spray irrigation valve core are reset so as to irrigate again. For the fruit trees, if water and fertilizer integrated irrigation is needed to be carried out on the roots of the fruit trees, the pressure can be controlled to be drip irrigation pressure; if the fertilizer and pesticide spraying operation is required to be carried out on the fruit trees, the water inlet pressure can be further increased until the micro-spray valve opening is opened, and the foliar fertilizer or pesticide spraying operation is carried out on the fruit trees.
The application method of the valve capable of adjusting drip irrigation and micro-spray irrigation diversion pipelines along with the water inlet pressure in the embodiment comprises the following steps:
1. drip irrigation
The water source gate valve is opened, the pressure of the equipment is regulated to the pressure required by drip irrigation, water flows into the inner cavity 6 through the water inlet channel 9, and when the pressure is small, the water flow is insufficient to compress the piston 5 to enable the piston to slide upwards, so that the micro-spray irrigation valve core does not flow through water, and the micro-spray irrigation valve core is in an unopened state. At this time, water enters the drip irrigation water inlet cavity 13, the drip irrigation water outlet cavity 14 and the space under the elastic membrane 16 through the two sides of the water guide column 17, so that a complete water flow passage is formed at the drip irrigation valve opening, and crop drip irrigation is started. Along with the gradual increase of the water flow pressure, the pressure acting on the water guide column 17 is gradually increased, the water guide column 17 and the elastic membrane 16 connected with the water guide column are pushed to the water outlet of the drip irrigation valve core under the pressure, the water guide column 17 and the elastic membrane 16 block the water outlet, so that water cannot pass through the water guide column, the drip irrigation water inlet is free of water, and the drip irrigation valve opening is in a closed state. When the pressure of the water flow at the inlet of the valve is reduced to be disappeared, the pressure applied to the water guide column 17 and the elastic membrane 16 connected with the water guide column is disappeared, and then the water guide column 17 and the elastic membrane 16 are not tightly blocked at the water outlet of the drip irrigation valve opening, and the drip irrigation valve opening is restored to the original state and the irrigation is stopped.
2. Micro-sprinkling irrigation
When micro-sprinkling irrigation is needed, the water pressure is continuously increased, when the pressure of the device gradually increases to the pressure required by the micro-sprinkling irrigation, water flows into the inner cavity 6 through the water inlet pipeline of the water inlet channel 9, and at the initial stage of adjusting the water flow pressure, water firstly flows into the drip irrigation water inlet cavity 13 and the drip irrigation water outlet cavity 14 through the water guide column 17, but along with the gradual increase of the water flow pressure, the elastic membrane 16 and the water guide column 17 are compressed, so that the water flow cannot pass, and the drip irrigation water inlet is free of water. Meanwhile, the water flow compresses the piston 5, so that the spray irrigation spring 3 is shortened, the piston 5 and the spray irrigation spring 3 slide upwards along the wall of the water-proof ring 4 until an orifice appears, so that the water flow outwards flows out along the water outlet flow channel, and flows into the micro spray irrigation pipeline for irrigation through the spray irrigation water permeable holes 2. When irrigation is completed, the water pressure decreases, the sprinkler spring 3 rebounds, closing the orifice, and at the same time, the elastic membrane 16 is pressed down, and the rebound returns to its original state.
The valve can effectively realize free switching of two irrigation modes of micro-irrigation and drip irrigation by only adjusting water pressure, and elements at each part recover the initial state after irrigation is finished.
Example 2
As shown in fig. 3, the structure of an automatic water flow switching valve is basically the same as that of embodiment 1, and the difference in this embodiment is that: the drip irrigation valve core has different structures, and is specifically as follows:
the drip irrigation valve core comprises a drip irrigation external pipe hoop, a sealing plate 18, a sealing ring 19, a drip irrigation spring 20, a drip irrigation fixing plate 21 and a drip irrigation water permeable hole 22, the drip irrigation water outlet channel comprises a drip irrigation water inlet cavity and a drip irrigation water outlet cavity, one end of the drip irrigation external pipe hoop is connected with the drip irrigation water outlet channel, the other end of the drip irrigation external pipe hoop is connected with a drip irrigation water outlet pipe, one end of the drip irrigation spring 20 is fixed with the sealing plate 18, the other end of the drip irrigation spring 20 is fixed with the drip irrigation fixing plate 21, the sealing ring 19 is fixed with the sealing plate 18, the diameter of the sealing plate 18 is not smaller than the diameter of the drip irrigation water inlet cavity, the diameter of the sealing plate 18 in this embodiment is larger than the diameter of the drip irrigation water inlet cavity, the fixing plate 21 is arranged in the drip irrigation water outlet cavity, the diameter of the drip irrigation fixing plate 21 is smaller than or equal to the diameter of the drip irrigation water outlet cavity, the diameter of the fixing plate 21 is smaller than the diameter of the drip irrigation water outlet cavity, the diameter of the sealing plate 21 is larger than the diameter of the drip irrigation fixing plate 21, and the diameter of the drip irrigation water outlet pipe is smaller than the diameter of the sealing plate 22 is smaller than the diameter of the water permeable hole 22.
The spring is different with the spring force of sprinkling irrigation spring, and the spring force of sprinkling irrigation spring is less than the spring of sprinkling irrigation, and when the spring of dripping irrigation is compressed to the bottom, the spring of sprinkling irrigation just begins to be compressed, and then realizes the alternation of drip irrigation and sprinkling irrigation.
The drip irrigation operation in this embodiment:
and opening a water source gate valve, regulating the pressure of the equipment to the pressure required by drip irrigation, and enabling water flow to enter the inner cavity through the water inlet channel, wherein when the pressure is smaller, the water flow is insufficient to compress the piston to enable the piston to slide upwards, so that the micro-spray irrigation valve core does not flow through water, and is in an unopened state. At this time, the pressure of the water flow can compress the drip irrigation spring 20 to compress the drip irrigation spring, and the water enters the drip irrigation water inlet cavity and the drip irrigation water outlet cavity through the two sides to form a complete water flow passage with the drip irrigation water permeable holes 22 of the drip irrigation fixing plate 21, so that the drip irrigation of crops is started. Along with the gradual increase of the water flow pressure, the pressure acting on the sealing plate 18 is gradually increased, the sealing ring 19 and the drip irrigation spring 20 connected with the sealing ring are pushed to the water outlet of the drip irrigation valve core under the pressure, the sealing ring 19 and the sealing plate 18 block the water outlet, so that the water flow cannot pass through, the drip irrigation water inlet is free of water, and the drip irrigation valve opening is in a closed state. When the valve inlet water flow pressure is reduced to disappear, the pressure applied to the sealing plate 18 and the drip irrigation spring 20 connected with the sealing plate is then disappeared, and the sealing plate 18 and the sealing ring 19 are not tightly blocked at the water outlet of the drip irrigation valve opening, and the drip irrigation valve opening is restored to the original state and irrigation is stopped.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (1)
1. The utility model provides a rivers automatic switch-over valve which characterized in that: the drip irrigation valve comprises a valve body, wherein a water inlet channel, a drip irrigation water outlet channel, a micro-spray irrigation water outlet channel and an internal cavity are arranged in the valve body, the water inlet channel, the drip irrigation water outlet channel and the micro-spray irrigation water outlet channel are communicated through the internal cavity, a drip irrigation valve core which is closed along with the increase of water inlet pressure is arranged in the drip irrigation water outlet channel, a micro-spray irrigation valve core which is opened along with the increase of water inlet pressure is arranged in the micro-spray irrigation water outlet channel, when the drip irrigation valve core is opened, the micro-spray irrigation valve core is closed, and when the drip irrigation valve core is closed, the micro-spray irrigation valve core is opened; the micro-sprinkling valve core comprises a micro-sprinkling external pipe hoop, a piston, a micro-sprinkling spring and a micro-sprinkling fixing plate, wherein micro-sprinkling water holes are formed in the micro-sprinkling fixing plate, a micro-sprinkling water outlet channel comprises a micro-sprinkling water inlet cavity and a micro-sprinkling water outlet cavity, one end of the micro-sprinkling external pipe hoop is connected with the micro-sprinkling water outlet channel, the other end of the micro-sprinkling external pipe hoop is connected with a micro-sprinkling water outlet pipe, one end of the micro-sprinkling spring is fixed with the piston, the other end of the micro-sprinkling spring is fixed with the micro-sprinkling fixing plate, the diameter of the piston is consistent with that of the micro-sprinkling water inlet cavity, the piston is positioned in the micro-sprinkling water inlet cavity when the micro-sprinkling valve core is closed, and the micro-sprinkling fixing plate is arranged in the micro-sprinkling water outlet cavity and has a diameter larger than that of the micro-sprinkling water outlet pipe;
the drip irrigation valve core comprises a drip irrigation external pipe hoop, a sealing plate, a sealing ring, a drip irrigation spring, a drip irrigation fixing plate and a drip irrigation water permeable hole, the drip irrigation water outlet channel comprises a drip irrigation water inlet cavity and a drip irrigation water outlet cavity, one end of the drip irrigation external pipe hoop is connected with the drip irrigation water outlet channel, the other end of the drip irrigation external pipe hoop is connected with a drip irrigation water outlet pipe, one end of the drip irrigation spring is fixed with the sealing plate, the other end of the drip irrigation spring is fixed with the drip irrigation fixing plate, the sealing ring is fixed with the sealing plate, the diameter of the sealing plate is not smaller than the diameter of the drip irrigation water inlet cavity, the drip irrigation fixing plate is arranged in the drip irrigation water outlet cavity, the diameter of the drip irrigation fixing plate is smaller than or equal to the diameter of the drip irrigation water outlet cavity, the diameter of the drip irrigation fixing plate is larger than the diameter of the micro-sprinkling water outlet pipe, the drip irrigation water permeable hole is arranged in the center of the drip irrigation fixing plate, and the diameter of the drip irrigation water permeable hole is smaller than the diameter of the sealing plate.
The outside of the valve body is a smooth radian metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311490725.9A CN117307754A (en) | 2022-02-28 | 2022-02-28 | Automatic water flow switching valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186281.9A CN114562585B (en) | 2022-02-28 | 2022-02-28 | Automatic reversing valve for pressure-regulating water flow |
| CN202311490725.9A CN117307754A (en) | 2022-02-28 | 2022-02-28 | Automatic water flow switching valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210186281.9A Division CN114562585B (en) | 2022-02-28 | 2022-02-28 | Automatic reversing valve for pressure-regulating water flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117307754A true CN117307754A (en) | 2023-12-29 |
Family
ID=81716537
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210186281.9A Active CN114562585B (en) | 2022-02-28 | 2022-02-28 | Automatic reversing valve for pressure-regulating water flow |
| CN202311490725.9A Pending CN117307754A (en) | 2022-02-28 | 2022-02-28 | Automatic water flow switching valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210186281.9A Active CN114562585B (en) | 2022-02-28 | 2022-02-28 | Automatic reversing valve for pressure-regulating water flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114562585B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1061205B (en) * | 1976-12-30 | 1983-02-08 | Fiat Spa | SELF-PILOTED IRRIGATION SYSTEM |
| US4653695A (en) * | 1985-09-11 | 1987-03-31 | Drip Irrigation Systems, Ltd. | Pressure compensating drip irrigation emitter |
| CN103053387B (en) * | 2013-01-11 | 2014-05-28 | 中国农业大学 | Capillary inlet flow regulator |
| CN104259019B (en) * | 2014-08-15 | 2016-03-16 | 湖北孚龙管业科技有限公司 | A kind of pressure-compensated shower nozzle |
| CN105782533B (en) * | 2016-05-04 | 2019-04-30 | 中国水利水电科学研究院 | A kind of pressure-adjusting type elasticity douche |
| IL259501A (en) * | 2018-05-21 | 2018-07-31 | Lutzki Moshe | Drip emitter for periodic, volumetrically timed, irrigation |
| CN109258409B (en) * | 2018-10-15 | 2020-10-30 | 西北农林科技大学 | Ceramic root irrigation and micro-irrigation complementary irrigation device |
| CN211153130U (en) * | 2019-11-29 | 2020-08-04 | 马中楷 | Irrigation equipment of desert sand field plant |
| CN214508544U (en) * | 2021-01-20 | 2021-10-29 | 南京农业大学 | Micro-spraying and drip irrigation linked irrigation device |
| CN113349032A (en) * | 2021-07-14 | 2021-09-07 | 尚燕慧 | Flow divider for water-saving irrigation and irrigation system thereof |
-
2022
- 2022-02-28 CN CN202210186281.9A patent/CN114562585B/en active Active
- 2022-02-28 CN CN202311490725.9A patent/CN117307754A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN114562585A (en) | 2022-05-31 |
| CN114562585B (en) | 2023-12-15 |
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