Vegetable cultivation apparatus and cultivation method thereof

Abstract

This invention discloses a vegetable cultivation device and method, comprising at least one cultivation rack and multiple cultivation racks located in a fish pond, which can be elongated. Each cultivation rack consists of a central tube and a spiral tube, with the spiral tube sleeved outside the central tube. This invention forms a fish-vegetable symbiotic system by integrating the cultivation rack with the fish pond. Water pumps and aeration pumps activate and oxygenate the aquaculture water, directing oxygen to the vegetable roots. The introduced airflow creates bubbles in the cultivation water, accelerating water vaporization and preventing excessively high root temperatures that could hinder normal growth. An intelligent monitoring system and power regulator allow the water pump to switch between three operating frequencies: root oxygenation, root hydration, and environmental humidification. The system also enables periodic water changes, providing water and nutrients to the vegetable roots. This solves both the problem of wasted cultivation solution and the harm caused by prolonged stagnation of the solution, promoting mutual benefit between fish and vegetables.

Description

Technical Field

[0001] This invention relates to the field of vegetable cultivation technology, specifically to a vegetable cultivation device and its cultivation method. Background Technology

[0002] Aquaponics is a new type of integrated farming system that combines two completely different agricultural techniques, aquaculture and hydroponics, through ingenious ecological design to achieve scientific synergy and symbiosis. This results in fish farming without water changes and water quality concerns, and vegetables growing normally without fertilizer.

[0003] In traditional aquaculture, the accumulation of fish excrement leads to an increase in ammonia nitrogen in the water, gradually increasing toxicity. However, in aquaponics systems, the water from aquaculture is transferred to the hydroponic system, where bacteria break down the ammonia nitrogen into nitrite, which is then further broken down into nitrate by nitrifying bacteria. The nitrate can be directly absorbed and utilized by the plants as nutrients. Because fish are present in aquaponics systems, no pesticides can be used; any misuse could result in the death of fish and beneficial microorganisms, and even system collapse. Aquaponics eliminates soil cultivation, avoiding heavy metal pollution from the soil. Heavy metal residues in vegetables and aquatic products from aquaponics systems are significantly lower than in traditional soil-grown products. Aquaponics achieves a harmonious ecological balance among animals, plants, and microorganisms, representing a sustainable, circular, zero-emission, low-carbon production model and an effective solution to the agricultural ecological crisis.

[0004] Because the vegetable culture solution in aquaponics systems contains plant growth nutrients, which are not easily recycled into the fish pond, this could negatively impact fish growth and lead to nutrient loss and waste. Therefore, static cultivation is typically used in vegetable growth, minimizing the replacement of the culture solution. However, after prolonged standing, the oxygen content in the culture solution decreases, hindering root respiration and failing to meet their physiological needs. This can also attract insects that harm the vegetable roots, causing root rot. Furthermore, current technologies are inconvenient for vegetable placement, support, and harvesting, making vegetables prone to tipping over and damage, resulting in low harvesting efficiency and hindering rapid use.

[0005] Therefore, it is necessary to invent a vegetable cultivation equipment and cultivation method to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a vegetable cultivation device and method. By forming an aquaponics system with a cultivation rack and a fish pond, a water pump and an aeration pump are used to activate and oxygenate the aquaculture water while directing oxygen to the vegetable roots to promote nutrient absorption. The intelligent monitoring system and power regulator enable the water pump to switch between three operating frequencies, corresponding to root oxygenation, root watering, and environmental humidification, respectively. It also enables regular water changes, thus solving the above-mentioned shortcomings in the technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a vegetable cultivation device, comprising at least one cultivation rack, and multiple cultivation racks located in a fish pond. The fish pond can be elongated, and its width and depth can be set according to actual production needs, facilitating the sequential distribution of multiple cultivation racks and their proximity to the edge for easy harvesting and management, thus achieving aquaponics. The cultivation rack consists of a core tube and a spiral tube, wherein the spiral tube is sleeved outside the core tube, the core tube is located at the axis of the spiral tube, and a first connecting tube and a second connecting tube extend from both ends of the spiral tube, respectively. The interiors of the first connecting tube and the second connecting tube are both connected to the spiral tube. A first bushing is provided at the end of the first connecting tube away from the spiral tube, and a second bushing is provided at the end of the second connecting tube away from the spiral tube. The first bushing is connected to the first connecting tube. The pipe is connected, and the bottom of the second connecting pipe is equipped with at least one high-pressure nozzle for drip irrigation or spraying dissolved oxygen water to oxygenate the water in the fish pond. The core pipe has a cavity inside, and the top and bottom of the core pipe are provided with through holes that penetrate the cavity. The through hole at the top is covered by a first bushing. The first bushing has an annular groove inside, which has a certain water storage capacity. It works with the through hole to maintain water pressure and discharge. A three-way pipe is provided in the through hole at the bottom. The two input ends of the three-way pipe away from the through hole are respectively connected to a water pump and an oxygen pump. The water pump and the oxygen pump are connected to realize water circulation and oxygen replenishment respectively. Oxygen dissolves in the water or enters the cavity from the three-way pipe with the water. After being discharged through the through hole, it winds around the spiral pipe to the bottom and is sprayed out from the atomizing nozzle to activate and oxygenate the water and improve the survival rate of fish farming.

[0008] The upper surface of the spiral tube along the spiral trajectory is set as a straight surface, and several evenly distributed slotted plates are arranged on the straight surface along the spiral trajectory. The slotted plates are set in the slots opened on the spiral tube and are integrally set with the spiral tube. A cultivation bottle is movably inserted into the slotted plate. The cultivation bottle is used to place vegetable plants, and a support part for supporting the vegetable plants is set on the top of the inner side of the cultivation bottle. The outer side of the cultivation bottle is hollowed out to facilitate the contact of the culture solution with the vegetable roots. An exhaust hole is opened at the top of the spiral tube and on one side of the slotted plate. A first solenoid valve is installed in the exhaust hole, and the output end of the exhaust hole is connected to a gas supply pipe. The other end of the gas supply pipe extends into the inside of the cultivation bottle. At least one liquid replenishment hole is opened on the slotted plate, and a second solenoid valve is installed in the liquid replenishment hole.

[0009] A liquid level sensor is embedded inside the trough plate, and a microcontroller is connected to the liquid level sensor. The microcontroller has an A / D converter and a D / A converter at its input and output ends, respectively. The liquid level sensor is electrically connected to the A / D converter. The first and second solenoid valves are both electrically connected to the D / A converter. A power regulator is connected to the water pump's connection circuit in series and is electrically connected to the D / A converter. The power regulator is used to control the water pump to switch between three operating frequencies, denoted as N1, N2, and N3. When the water pump operates at power N1, the first solenoid valve is open and the second solenoid valve is closed. When the water pump operates at power N2, the first solenoid valve is closed and the second solenoid valve is open when the root system is being watered. When the cultivation water is being changed, both the first and second solenoid valves are open. When the water pump operates at power N3, both the first and second solenoid valves are closed. A timer is connected to the microcontroller and is used to calculate the duration of the water pump's operation at power N3.

[0010] As a preferred embodiment of the present invention, the cultivation bottle is configured as a cup-shaped structure with a smaller top and a larger bottom, and the top of the cup-shaped structure is configured as a straight cylindrical section, the bottom is configured as a convex arc shape, and the top of the cultivation bottle is configured as an opening shape. A notch is provided at the bottom axis of the cultivation bottle, and the cultivation bottle is made of soft plastic material.

[0011] The support consists of multiple fan-shaped plates arranged in a circular array. The fan-shaped plates are made of foam material, and a sponge pad is provided on the inner arc surface of the fan-shaped plate. The inner arc surface of the fan-shaped plate contacts the vegetable stem through the sponge pad, which has a certain buffering and protective effect.

[0012] As a preferred embodiment of the present invention, a first air pipe and a second air pipe are arranged along the spiral trajectory on the outer side of the spiral tube, and both the first air pipe and the second air pipe are fixed to the outer side of the spiral tube by cable ties.

[0013] An annular airbag is bonded to the middle section of the inner side wall of the slotted plate, and a cylindrical airbag is provided at the bottom of the inner side of the slotted plate. The annular airbag matches the installation state of the culture bottle, and the cylindrical airbag is snapped into the inside of the recess.

[0014] Multiple first branch tubes extend from the first trachea, and the multiple first branch tubes are respectively connected to multiple annular airbags. Multiple second branch tubes extend from the second trachea, and the multiple second branch tubes are respectively connected to multiple cylindrical airbags. A pressurizing air pump is provided at the connection end of the first trachea and the second trachea. Both the first trachea and the second trachea are provided with ball valves and pressure relief valves. Only one ball valve on the first trachea and the second trachea can be opened at the same time. At the same time, the pressure relief valve on the pipeline remains closed while the ball valve is open.

[0015] As a preferred embodiment of the present invention, the bottom of the cultivation rack is provided with a mounting part, the mounting part comprising:

[0016] The base is fixed to the bottom of the fish pond with screws, and an ear plate seat is fixedly connected to the top axis position of the base;

[0017] The T-shaped support plate is fixedly connected to the bottom end of the shaft tube, and the bottom of the T-shaped support plate is hinged to the ear plate seat. The through hole at the bottom passes through the top of the side wall of the T-shaped support plate.

[0018] The hydraulic cylinders are distributed at an angle on the top of the T-shaped support plate and the side of the base, and the bottom of the hydraulic cylinders is hinged to the base. The output shaft of the hydraulic cylinders is hinged to the T-shaped support plate, and the connecting end of the hydraulic cylinders is provided with a hydraulic mechanism to provide power.

[0019] As a preferred embodiment of the present invention, the first bushing and the second bushing slide on the outside of the shaft tube, and sealing rings are provided at the connection points between the two ends of the first bushing and the shaft tube.

[0020] A buffer spring is sleeved on the outside of the shaft tube, and the buffer spring is located between the T-shaped support plate and the second bushing.

[0021] As a preferred embodiment of the present invention, a ring plate is rotatably sleeved on the top outer side of the first bushing, and a support rod is fixedly connected between two adjacent ring plates to ensure that multiple cultivation racks are raised and lowered synchronously, thereby improving the overall stability of the device.

[0022] The bottom outer side of the second bushing is fixedly connected to a pulley, and a transmission belt is sleeved between the outer sides of two adjacent pulleys. When one cultivation rack rotates, the other cultivation racks can rotate synchronously.

[0023] As a preferred embodiment of the present invention, the spiral tube is configured as a pagoda-shaped structure with a small top and a large bottom. When vegetables are evenly distributed for cultivation, the influence of the outer wall of the top spiral tube is small, and when the environment is moistened, the atomized water molecules can be evenly sprayed onto the vegetables.

[0024] A vegetable cultivation method using the aforementioned cultivation equipment, with the following specific operating steps:

[0025] S1: Insert the vegetable roots into the cultivation bottle and use fan-shaped plates to form a support, which is then attached to the outside of the vegetable stem to make it stand stably. Then, insert the assembled cultivation bottles into the slotted plates one by one.

[0026] S2: Turn on the pressurized air pump and adjust the ball valves and pressure relief valves on the first and second air pipes. That is, open the ball valve on the first air pipe, close the ball valve on the second air pipe, close the pressure relief valve on the first air pipe, and open the pressure relief valve on the second air pipe, so that multiple annular air bags are inflated and press the culture bottle tightly and fix it inside the slot plate.

[0027] S3: Add the nutrients needed by the plants to the inside of the trough board and add water to carry out hydroponics. Combine the fish pond at the bottom of the cultivation rack to raise fish and achieve aquaponics. The plants purify the air in the breeding environment, and the fallen leaves produced by their metabolism during growth serve as food for the fish.

[0028] Aeration is achieved in fish ponds by using water pumps and aeration pumps, with dissolved oxygen content in the circulating water ranging from 2 to 7.5 mg / L. During the aeration process, excess oxygen is directed to the vegetable roots, increasing the amount of nutrients absorbed by the vegetables.

[0029] S4: When homogenizing the growing environment of vegetables, one of the spiral tubes is rotated, causing the first and second connecting tubes to rotate outside the axial tube. Under the transmission of the pulley and the drive belt, and the support of the ring plate and the support rod, multiple cultivation racks can rotate synchronously. With the buffering effect of the buffer spring, the vegetables in each location can receive light, heat and wind evenly, and the growing environment becomes more uniform.

[0030] S5: When harvesting vegetables, the hydraulic mechanism is controlled to extend the output ends of multiple hydraulic cylinders simultaneously. The T-shaped support plate is hinged on the ear plate seat, thereby tilting and lowering the cultivation rack. At this time, the pressurized air pump is turned on, and the ball valve on the first air pipe is closed and the ball valve on the second air pipe is opened. At the same time, the pressure relief valve on the first air pipe is opened and the pressure relief valve on the second air pipe is closed. The annular airbag is deflated, and multiple cylindrical airbags inflate and pull the cultivation bottle outward, making it easy to remove the vegetables.

[0031] As a preferred embodiment of the present invention, S3 includes the steps of root oxygenation, root watering, and environmental humidification, and the three steps of root oxygenation, root watering, and environmental humidification correspond to the three operating frequencies of the water pump, namely N1, N2, and N3.

[0032] Among them, the liquid level sensor senses the water level inside the tank plate in real time. When the water level inside the tank plate exceeds the set warning line, no water needs to be added. The first solenoid valve opens and the second solenoid valve closes. At this time, at the working frequency of N1, water mixed with oxygen flows slowly down from the spiral tube and does not fill the entire internal chamber of the spiral tube. Oxygen enters the culture bottle from the exhaust port and the gas delivery pipe.

[0033] When the water level inside the trough plate reaches the set warning line, water is added. First, with the first and second solenoid valves closed, the water pump operates at N2 frequency to fill the entire internal chamber of the spiral tube with dissolved oxygen water. Then, the first solenoid valve remains closed, the second solenoid valve opens, and dissolved oxygen water enters the culture bottle from the replenishment hole until the set upper water level is reached. The second solenoid valve closes, the water pump operating frequency switches back to N1, and after the water flow decreases and the root oxygenation state is restored, the first solenoid valve opens.

[0034] When the water level inside the trough plate is detected to be below the water replenishment requirement, and the environment is to be moistened periodically as needed, both the first and second solenoid valves are closed. At the operating frequency of N3, water mixed with oxygen passes through the spiral tube and fills the entire internal chamber of the spiral tube. Then, it is atomized and sprayed out from the atomizing nozzle to moisten the environment and also moisten the surface of the vegetables. The timer keeps track of the time. After the set time is reached, the water pump operating frequency switches back to N1, and the first solenoid valve opens while the second solenoid valve remains closed.

[0035] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0036] 1. An aquaponics system is formed by combining cultivation racks and fish ponds. Water pumps and aeration pumps are used to activate and oxygenate the aquaculture water, directing oxygen to the vegetable roots to promote nutrient absorption. At the same time, the added air will circulate bubbles in the cultivation water, accelerating the vaporization of water mist and lowering the temperature of the cultivation water to prevent the vegetable roots from overheating and affecting normal growth. With the help of an intelligent monitoring system and power regulator, the water pump can switch between three working frequencies, corresponding to root oxygenation, root watering, and environmental humidification, respectively. It can also realize the function of regular water changes, providing water and nutrients to the vegetable roots. This solves the problem of waste of cultivation solution and the harm caused by long-term stagnation of cultivation solution, so that fish and vegetables can promote each other.

[0037] 2. By setting the spiral tube in a pagoda shape, the impact of the outer wall of the top spiral tube is small when vegetables are evenly distributed for cultivation. When the environment is humidified, the atomized water molecules can be evenly sprayed onto the vegetables. While the spiral tube moves freely outside the core tube, it ensures the circulation and delivery of dissolved oxygen water. The slight elasticity of the buffer spring allows the vegetables to vibrate when they move, making it easier for water droplets on the surface to fall off. Vegetables in all locations can receive light, heat and wind evenly, making the growth environment of the vegetables more uniform and ensuring that all vegetables can grow healthily and well.

[0038] 3. By setting up a cooperative structure between the cultivation bottle and the trough board, and using fan-shaped plates to form a support part to support the vegetable stems, the vegetables can stand stably and improve their resistance to lodging during planting. When planting, the vegetable roots are placed in the cultivation bottle, which facilitates the spread of the roots. The sponge pad is in contact with the vegetable stems, which has a certain buffering and protective effect, preventing the vegetables from being squeezed and damaged during growth, thus ensuring the appearance and quality of the vegetables.

[0039] 4. By setting a first air pipe and a second air pipe on the outside of the spiral tube, and adjusting the settings with a pressurizing air pump and ball valves and pressure relief valves on the first and second air pipes, the cultivation bottles containing vegetables are placed behind the trough plate, so that multiple annular air bags are inflated at the same time, and the cylindrical air bags are in the storage state. At this time, all cultivation bottles can be quickly fixed. When harvesting, multiple annular air bags are deflated, and multiple cylindrical air bags are inflated at the same time, which can slightly push all cultivation bottles out, and the cultivation bottles are no longer fixed, making it easy to remove them quickly.

[0040] 5. By setting up an installation part and movably connecting it to the cultivation rack, the cultivation rack can be laid down before harvesting vegetables, reducing the height of the vegetables in the cultivation rack. At the tilt angle, it is easier to pull the vegetables out at an angle, and it is less likely to break the vegetable stems and roots, making harvesting convenient and greatly improving efficiency. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0042] Figure 1 This is a first-view perspective perspective view of the overall structure of the present invention;

[0043] Figure 2 This is a second-view perspective perspective view of the overall structure of the present invention;

[0044] Figure 3 This is a side view of the overall structure of the present invention;

[0045] Figure 4 This is a perspective view of the spiral tube of the present invention;

[0046] Figure 5 This is a perspective view of the axial tube of the present invention;

[0047] Figure 6 This is a front view of the axial tube of the present invention;

[0048] Figure 7 For the present invention Figure 6 Schematic diagram of the cross-sectional structure of the middle AA section;

[0049] Figure 8 This is a schematic diagram of the distribution structure of the first and second tracheas of the present invention;

[0050] Figure 9 This is a partial cross-sectional view of the cultivation structure (vegetable growth state) of the present invention;

[0051] Figure 10 This is a diagram illustrating the root oxygenation effect of the vegetable cultivation (water pump operating at N1 frequency) according to the present invention.

[0052] Figure 11 This is a diagram illustrating the root watering effect of the vegetable cultivation (water pump operating at N2 frequency) according to the present invention;

[0053] Figure 12 This image illustrates the effect of changing the cultivation water in vegetable cultivation (with the water pump operating at N2 frequency) according to the present invention.

[0054] Figure 13 This is a partial cross-sectional view of the cultivation structure (vegetable harvesting state) of the present invention;

[0055] Figure 14 This is a first-view perspective perspective view of the disassembled structure of the culture bottle and support part of the present invention.

[0056] Figure 15 This is a second-view perspective view of the disassembled structure of the culture bottle and support part of the present invention.

[0057] Figure 16 This is a system control flowchart of the present invention.

[0058] Explanation of reference numerals in the attached figures:

[0059] Cultivation rack-1; Fish pond-2; Cultivation bottle-3; Support unit-4; First solenoid valve-5; Air supply pipe-6; Second solenoid valve-7; Liquid level sensor-8; Microcontroller-9; Water pump-10; Timer-11; First air pipe-12; Second air pipe-13; Annular airbag-14; Cylindrical airbag-15; Pressurized air pump-16; Mounting unit-17; Buffer spring-18; Ring plate-19; Support rod-20; Pulley-21; Transmission belt-22;

[0060] Core tube - 101; Spiral tube - 102; First connecting tube - 103; Second connecting tube - 104; First bushing - 105; Second bushing - 106; High-pressure nozzle - 107; Through hole - 108; T-connector - 109; Atomizing nozzle - 110; Slotted plate - 111; Exhaust hole - 112; Liquid replenishment hole - 113;

[0061] Base - 171; Ear plate seat - 172; T-shaped support plate - 173; Hydraulic cylinder - 174. Detailed Implementation

[0062] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0063] This invention provides, for example Figure 1-16 The vegetable cultivation equipment shown includes at least one cultivation rack 1, and multiple cultivation racks 1 are located in a fish pond 2. The fish pond 2 can be set in a long strip shape, and the width and depth of the fish pond 2 can be set according to actual production needs, so that multiple cultivation racks 1 can be distributed in sequence and close to the edge for easy harvesting and management, realizing aquaponics. The cultivation rack 1 is composed of a core tube 101 and a spiral tube 102, wherein the spiral tube 102 is sleeved on the outside of the core tube 101, the core tube 101 is located at the core of the spiral tube 102, and a first connecting tube 103 and a second connecting tube 104 extend from both ends of the spiral tube 102, respectively. The interiors of the first connecting tube 103 and the second connecting tube 104 are both connected to the spiral tube 102. A first bushing 105 is provided at the end of the first connecting tube 103 away from the spiral tube 102, and a second bushing 106 is provided at the end of the second connecting tube 104 away from the spiral tube 102. The first bushing 105 is connected to the first connecting tube 103. At least one high-pressure nozzle 107 is provided at the bottom of the two-way connecting pipe 104 for drip irrigation or spraying dissolved oxygen water to oxygenate the water in the fish pond 2. The core pipe 101 has a cavity inside, and through holes 108 are provided at the top and bottom of the core pipe 101. The through hole 108 at the top is covered by a first bushing 105. The first bushing 105 has an annular groove inside, which has a certain water storage capacity. Together with the through hole 108, it realizes water pressure maintenance and discharge. The through hole 108 at the bottom is covered by a first bushing 105. A three-way pipe 109 is installed inside the through hole 108 of the part, and the two input ends of the three-way pipe 109 away from the through hole 108 are respectively connected to the water pump 10 and the air pump. The water pump 10 and the air pump are connected to realize water circulation and oxygen replenishment respectively. Oxygen is dissolved in the water or enters the cavity from the three-way pipe 109 along with the water. After being discharged through the through hole 108, it winds around the spiral tube 102 to the bottom end and is sprayed out from the atomizing nozzle 110 to realize water activation and oxygenation, thereby improving the survival rate of fish farming.

[0064] The upper surface of the spiral tube 102 along the spiral trajectory is set as a flat surface, and several evenly distributed slotted plates 111 are arranged on the flat surface along the spiral trajectory. The slotted plates 111 are set in the slots opened on the spiral tube 102, and the slotted plates 111 are integrally set with the spiral tube 102. A cultivation bottle 3 is movably inserted into the slotted plate 111. The cultivation bottle 3 is used to place vegetable plants, and a support part 4 for supporting vegetable plants is set on the top inner side of the cultivation bottle 3. The outer side of the cultivation bottle 3 is hollowed out to facilitate the contact of the culture solution with the vegetable roots. An exhaust hole 112 is opened on the top of the spiral tube 102 and on one side of the slotted plate 111. A first solenoid valve 5 is installed in the exhaust hole 112, and the output end of the exhaust hole 112 is connected to a gas supply pipe 6. The other end of the gas supply pipe 6 extends into the inside of the cultivation bottle 3. At least one liquid replenishment hole 113 is opened on the slotted plate 111, and a second solenoid valve 7 is installed in the liquid replenishment hole 113.

[0065] A liquid level sensor 8 is embedded inside the trough plate 111, and a microcontroller 9 is connected to the liquid level sensor 8. The microcontroller 9 has an A / D converter at its input and a D / A converter at its output. The liquid level sensor 8 is electrically connected to the A / D converter. The first solenoid valve 5 and the second solenoid valve 7 are both electrically connected to the D / A converter. A power regulator is connected to the water pump 10 in series in the water pump 10's circuit and is electrically connected to the D / A converter. The power regulator controls the water pump 10 to switch between three operating frequencies. The frequencies are denoted as N1, N2, and N3, respectively. When the water pump 10 operates at power N1, the first solenoid valve 5 is open and the second solenoid valve 7 is closed. When the water pump 10 operates at power N2, the first solenoid valve 5 is closed and the second solenoid valve 7 is open when the root system is being watered. When the cultivation water is being replaced, both the first solenoid valve 5 and the second solenoid valve 7 are open. When the water pump 10 operates at power N3, both the first solenoid valve 5 and the second solenoid valve 7 are closed. The connection terminal of the microcontroller 9 is equipped with a timer 11, and the timer 11 is used to calculate the operating time of the water pump 10 at power N3.

[0066] The high-pressure nozzle 107 has a lower spray pressure, and it can spray continuously when the water pump 10 is operating at power N1, N2 and N3. The atomizing nozzle 110 has a higher spray pressure, and it can only spray when the water pump 10 is operating at high power N3.

[0067] To ensure the cleanliness of the culture medium and prevent the breeding of mosquitoes, the culture medium should be changed regularly, such as every 1-2 weeks. During replacement, with the first solenoid valve 5 and the second solenoid valve 7 closed, the water pump 10 should operate at N2 frequency to fill the entire internal chamber of the spiral tube 102 with dissolved oxygen water. Then, the first solenoid valve 5 and the second solenoid valve 7 should be opened simultaneously, allowing dissolved oxygen water to enter the trough plate 111 from the replenishment hole 113 and flush the outer wall of the cultivation bottle 3. Dissolved oxygen water from the top should then flow out... The vent 112 and the air supply pipe 6 enter the cultivation bottle 3, flushing the vegetable roots and the inner wall of the cultivation bottle 3. When the water in the trough plate 111 is full, it overflows from the top and flows down along the water channel formed by the spiral tube 102, flushing the attached substances on the surface of the spiral tube 102 into the fish pond 2. After the water in the cultivation bottle 3 is replaced, the second solenoid valve 7 is closed, and the working frequency of the water pump 10 is switched back to N1. When the water flow decreases and the root oxygenation state is restored, root oxygenation and fish pond oxygenation continue.

[0068] After changing the water, nutrient solution needs to be added again to the trough plate 111 to provide water and nutrients for the vegetable roots.

[0069] like Figure 11-15 As shown, in order to facilitate vegetable cultivation and improve its resistance to lodging and stability during planting, the following improvements are made to cultivation bottle 3:

[0070] The cultivation bottle 3 is designed as a cup-shaped structure with a smaller top and a larger bottom. The top of the cup-shaped structure is a cylindrical straight section, and the bottom is a convex arc shape. The top of the cultivation bottle 3 is open, and there is a notch at the bottom axis of the cultivation bottle 3. The cultivation bottle 3 is made of soft plastic material.

[0071] The support part 4 consists of multiple fan-shaped plates, which are arranged in a ring array on the top of the inner side of the cultivation bottle 3. The fan-shaped plates are made of foam material, and the inner arc surface of the fan-shaped plates is provided with a sponge pad. The inner arc surface of the fan-shaped plates contacts the vegetable stems through the sponge pad, which has a certain buffering and protective effect, preventing the vegetables from being squeezed and damaged during growth.

[0072] like Figure 8-15 As shown, in order to improve the cultivation efficiency and harvesting speed of vegetables, the following improvements are made to the installation structure of cultivation bottle 3:

[0073] The outer side of the spiral tube 102 is provided with a first air tube 12 and a second air tube 13 along the spiral trajectory, and the first air tube 12 and the second air tube 13 are both fixed to the outer side of the spiral tube 102 by cable ties. After the structure is sorted, it will not affect the distribution of vegetables and their growth process.

[0074] An annular airbag 14 is bonded to the middle section of the inner side wall of the slotted plate 111, and a cylindrical airbag 15 is provided at the bottom of the inner side of the slotted plate 111. The annular airbag 14 matches the installation state of the culture bottle 3, and the cylindrical airbag 15 is snapped into the inside of the recess.

[0075] Multiple first branch tubes extend from the first trachea 12, and the multiple first branch tubes are respectively connected to multiple annular airbags 14. Multiple second branch tubes extend from the second trachea 13, and the multiple second branch tubes are respectively connected to multiple cylindrical airbags 15. A pressurizing air pump 16 is provided at the connection end of the first trachea 12 and the second trachea 13. Both the first trachea 12 and the second trachea 13 are provided with ball valves and pressure relief valves. Only one ball valve on the first trachea 12 and the second trachea 13 is open at the same time. At the same time, the pressure relief valve on the pipeline where the ball valve is open remains closed. That is, multiple cylindrical airbags 15 are inflated or deflated at the same time, and multiple annular airbags 14 are inflated or deflated at the same time. The cylindrical airbags 15 and the annular airbags 14 work alternately.

[0076] like Figure 1-3 As shown, in order to facilitate the harvesting of vegetables, the following improvements are made to the installation structure of cultivation rack 1:

[0077] The bottom of the cultivation rack 1 is provided with an installation part 17, which includes:

[0078] The base 171 is fixed to the bottom of the fish pond 2 by screws, and the ear plate seat 172 is fixedly connected to the top axis position of the base 171.

[0079] T-shaped support plate 173 is fixedly connected to the bottom end of shaft tube 101, and the bottom of T-shaped support plate 173 is hinged to ear plate seat 172. The through hole 108 at the bottom penetrates the top of the side wall of T-shaped support plate 173.

[0080] Hydraulic cylinder 174 is inclinedly distributed at the top of T-shaped support plate 173 and the side of base 171, and the bottom end of hydraulic cylinder 174 is hinged to base 171. The output shaft of hydraulic cylinder 174 is hinged to T-shaped support plate 173. The connecting end of hydraulic cylinder 174 is provided with a hydraulic mechanism to provide power.

[0081] like Figure 1-7 As shown, in order to ensure the circulation and transportation of dissolved oxygen water while allowing the spiral tube 102 to move freely outside the core tube 101, the following improvements are made to the core tube 101 and its external sleeve structure:

[0082] The first bushing 105 and the second bushing 106 slide on the outside of the shaft tube 101, and the connection between the two ends of the first bushing 105 and the shaft tube 101 is provided with a sealing ring, that is, the first bushing 105 is sealed with the shaft tube 101 by the sealing ring, so that the water inside the annular groove will not overflow, and can be introduced into the spiral tube 102 from the first connecting pipe 103.

[0083] A buffer spring 18 is sleeved on the outside of the spindle tube 101, and the buffer spring 18 is located between the T-shaped support plate 173 and the second bushing 106. The buffer spring 18 provides a certain support force and a slight elastic force, effectively supporting the spiral tube 102 while the slight elastic force can gently shake the vegetables, making it easier for water droplets on the vegetables to fall off.

[0084] Furthermore, in the above technical solution, in order to ensure that the vegetables in various locations receive light, heat, and wind evenly, and to make the vegetable growth environment more uniform, the following improvements are made to the structure of the cultivation rack 1:

[0085] The outer top of the first bushing 105 is rotatably fitted with a ring plate 19, and a support rod 20 is fixedly connected between two adjacent ring plates 19 to ensure that multiple cultivation racks 1 are raised and lowered synchronously, thereby improving the overall stability of the device.

[0086] A pulley 21 is fixedly connected to the bottom outer side of the second bushing 106, and a transmission belt 22 is sleeved between the outer sides of two adjacent pulleys 21. When one cultivation rack 1 rotates, the other cultivation racks 1 can rotate synchronously.

[0087] Furthermore, in the above technical solution, the spiral tube 102 is set as a pagoda-shaped structure with a small top and a large bottom. When vegetables are evenly distributed for cultivation, the influence of the outer wall of the top spiral tube 102 is small, and when the environment is moistened, the atomized water molecules can be evenly sprayed on the vegetables.

[0088] A vegetable cultivation method using the aforementioned cultivation equipment, with the following specific operating steps:

[0089] S1: Insert the vegetable roots into the cultivation bottle 3 and use fan-shaped plates to form a support part 4, which is then attached to the outside of the vegetable stem to make it stand stably. Then, insert the installed cultivation bottles 3 into the slotted plates 111 one by one.

[0090] S2: Turn on the pressurizing air pump 16 and adjust the ball valves and pressure relief valves on the first air pipe 12 and the second air pipe 13, that is, open the ball valve on the first air pipe 12, close the ball valve on the second air pipe 13, close the pressure relief valve on the first air pipe 12, and open the pressure relief valve on the second air pipe 13, so that the multiple annular air bags 14 are inflated and pressed and fixed the culture bottle 3 inside the slot plate 111;

[0091] S3: Add the nutrients required by the plants to the inside of the trough plate 111 and add water to carry out hydroponics. The nutrients required by the plants can be obtained by adding nutrient solution. The nutrient solution should be inorganic minerals that are harmless to fish. Combined with the fish pond 2 at the bottom of the cultivation rack 1, fish and vegetables can be raised to achieve fish-vegetable symbiosis. The plants purify the air in the breeding environment, and the fallen leaves produced by metabolism during the growth process serve as food for the fish.

[0092] Fish and vegetable roots have a mutually beneficial relationship: due to metabolism, adsorption, and algal activity, the surface of the roots will produce and be covered with a layer of organic matter, which provides food for the fish; the fish eat the cleaned-off root matter, and their small amount of excrement also provides nutrients for the plants, which is beneficial to plant growth.

[0093] Aeration is achieved by using water pump 10 and air pump to oxygenate the fish pond 2. During the oxygenation process, excess oxygen is directed to the vegetable roots, increasing the absorption of nutrients by the vegetables. At the same time, the added air will circulate and bubble in the cultivation water, accelerating the vaporization of the water mist. In summer, the vaporization of the water mist can lower the temperature of the cultivation water, preventing the vegetable roots from getting too hot and affecting their normal growth.

[0094] S4: When homogenizing the growth environment of vegetables, one of the spiral tubes 102 is rotated, causing the first connecting tube 103 and the second connecting tube 104 to rotate outside the axial tube 101. Under the transmission of the pulley 21 and the drive belt 22, and the support of the ring plate 19 and the support rod 20, multiple cultivation racks 1 can rotate synchronously. With the buffering effect of the buffer spring 18, the vegetables located in each place can be evenly exposed to light, heat and wind, and the growth environment becomes more uniform.

[0095] S5: When harvesting vegetables, the output ends of multiple hydraulic cylinders 174 are extended synchronously by controlling the hydraulic mechanism. The T-shaped support plate 173 is hinged on the ear plate seat 172, thereby tilting the cultivation rack 1 down. At this time, the pressurized air pump 16 is turned on, and the ball valve on the first air pipe 12 is closed and the ball valve on the second air pipe 13 is opened. At the same time, the pressure relief valve on the first air pipe 12 is opened and the pressure relief valve on the second air pipe 13 is closed. The annular air bag 14 is deflated, and multiple cylindrical air bags 15 inflate and drag the cultivation bottle 3 outward, so that the vegetables can be easily taken out.

[0096] To further clarify the description of vegetable cultivation methods, S3 will be explained in detail:

[0097] S3 includes the steps of root oxygenation, root watering, and environmental humidification, and the three steps of root oxygenation, root watering, and environmental humidification correspond to the three working frequencies of the water pump 10, namely N1, N2, and N3.

[0098] The liquid level sensor 8 senses the water level inside the tank plate 111 in real time. When the water level inside the tank plate 111 exceeds the set warning line, no water needs to be added. The first solenoid valve 5 opens and the second solenoid valve 7 closes. At this time, under the working frequency of N1, water mixed with oxygen flows slowly down from the spiral tube 102, but does not fill the entire internal cavity of the spiral tube 102. Specifically, under the action of gravity, dissolved oxygen water gathers at the bottom of the spiral tube 102, and the dissolved oxygen water at the bottom position does not reach the height of the liquid replenishment hole 113. The rest of the spiral tube 102 only has water flowing through the bottom wall of the internal cavity of the spiral tube 102, and oxygen flows in other positions. Oxygen enters the culture bottle 3 from the exhaust hole 112 and the gas supply pipe 6.

[0099] When the water level inside the trough plate 111 is detected to have reached the set warning line, water is replenished. First, with the first solenoid valve 5 and the second solenoid valve 7 closed, the water pump 10 fills the entire internal chamber of the spiral tube 102 with dissolved oxygen water at the working frequency of N2. Then, the first solenoid valve 5 remains closed, the second solenoid valve 7 is opened, and dissolved oxygen water enters the culture bottle 3 from the replenishment hole 113 until the set upper water level is reached. Then, the second solenoid valve 7 is closed, the working frequency of the water pump 10 is switched back to N1, and when the water flow decreases and the root oxygen replenishment state is restored, the first solenoid valve 5 is opened.

[0100] When the water level inside the trough plate 111 is not detected to meet the water replenishment requirements, and the environment is moistened periodically as needed, both the first solenoid valve 5 and the second solenoid valve 7 are closed. At the working frequency of N3, water mixed with oxygen passes through the spiral tube 102 and fills the entire internal chamber of the spiral tube 102. Then, it is atomized and sprayed out from the atomizing nozzle 110 to moisten the environment and also moisten the surface of the vegetables. The timer 11 keeps track of the time. After the set time is reached, the working frequency of the water pump 10 is switched back to N1. When the water flow decreases and the root oxygenation state is restored, the first solenoid valve 5 is opened and the second solenoid valve 7 remains closed.

[0101] In addition, change the cultivation water regularly and replenish the nutrient solution.

[0102] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vegetable cultivation device, comprising multiple cultivation racks (1) and a water pump (10), wherein the multiple cultivation racks (1) are located in a fish pond (2), characterized in that: The cultivation rack (1) is composed of a central tube (101) and a spiral tube (102). The upper surface of the spiral tube (102) along the spiral trajectory is set as a straight surface, and several evenly distributed slotted plates (111) are arranged on the straight surface along the spiral trajectory. The slotted plates (111) are integrally set with the spiral tube (102). A cultivation bottle (3) is movably inserted into the slotted plate (111). The cultivation bottle (3) is used to place vegetable plants, and a support is provided on the top inner side of the cultivation bottle (3) to support the vegetable plants. Part (4), the outer side of the culture bottle (3) is hollowed out, the top of the spiral tube (102) and located on one side of the slotted plate (111) are provided with an exhaust hole (112), the exhaust hole (112) is provided with a first solenoid valve (5), and the output end of the exhaust hole (112) is connected to a gas supply pipe (6), and the other end of the gas supply pipe (6) extends into the inside of the culture bottle (3). At least one liquid replenishment hole (113) is provided on the slotted plate (111), and a second solenoid valve (7) is provided in the liquid replenishment hole (113). A liquid level sensor (8) is embedded inside the trough plate (111), and a microcontroller (9) is provided at the connection end of the liquid level sensor (8). The input and output ends of the microcontroller (9) are respectively provided with an A / D converter and a D / A converter. The liquid level sensor (8) is electrically connected to the A / D converter. The first solenoid valve (5) and the second solenoid valve (7) are both electrically connected to the D / A converter. The connection end of the water pump (10) is provided with a power regulator, and the power regulator is electrically connected to the D / A converter. It is used to control the water pump (10) to switch between three working frequencies, which are represented as N1, N2 and N3 respectively. The connection end of the microcontroller (9) is provided with a timer (11), and the timer (11) is used to calculate the working time of the water pump (10) under N3 power. The spiral tube (102) is provided with a first air tube (12) and a second air tube (13) along the spiral trajectory on the outside of the spiral tube (102), and the first air tube (12) and the second air tube (13) are both fixed to the outside of the spiral tube (102) by cable ties; An annular airbag (14) is bonded to the middle section of the inner wall of the slotted plate (111), and a cylindrical airbag (15) is provided at the bottom of the inner side of the slotted plate (111). The annular airbag (14) matches the installation state of the culture bottle (3), and the cylindrical airbag (15) is snapped into the inside of the notch. Multiple first branch tubes extend from the first trachea (12), and the multiple first branch tubes are respectively connected to multiple annular airbags (14). Multiple second branch tubes extend from the second trachea (13), and the multiple second branch tubes are respectively connected to multiple cylindrical airbags (15). A pressurizing air pump (16) is provided at the connection end of the first trachea (12) and the second trachea (13). A ball valve and a pressure relief valve are provided on both the first trachea (12) and the second trachea (13). Only one ball valve on the first trachea (12) and the second trachea (13) is open at the same time. At the same time, the pressure relief valve on the pipeline remains closed when the ball valve is open. The first bushing (105) and the second bushing (106) slide on the outside of the shaft tube (101), and sealing rings are provided at the connection between the two ends of the first bushing (105) and the shaft tube (101); A buffer spring (18) is sleeved on the outside of the shaft tube (101), and the buffer spring (18) is located between the T-shaped support plate (173) and the second bushing (106).

2. The vegetable cultivation equipment according to claim 1, characterized in that: The cultivation bottle (3) is configured as a cup-shaped structure with a smaller top and a larger bottom, and the top of the cultivation bottle (3) is configured as an opening. The bottom axis of the cultivation bottle (3) is provided with a notch. The cultivation bottle (3) is made of soft plastic material. The support part (4) is composed of multiple fan-shaped plates, and the multiple fan-shaped plates are arranged in a ring array. The fan-shaped plates are made of foam material, and the inner arc surface of the fan-shaped plates is provided with a sponge pad. The spiral tube (102) is sleeved outside the core tube (101), and a first connecting tube (103) and a second connecting tube (104) extend from both ends of the spiral tube (102). A first bushing (105) is provided at the end of the first connecting tube (103) away from the spiral tube (102), and a second bushing (106) is provided at the end of the second connecting tube (104) away from the spiral tube (102). The first bushing (105) is connected to the first connecting tube (103), and the bottom of the second connecting tube (104) is provided with... At least one high-pressure nozzle (107) is provided. The core tube (101) has a cavity inside, and the top and bottom of the core tube (101) are provided with through holes (108) that penetrate the cavity. The through hole (108) at the top is covered by a first bushing (105). A three-way pipe (109) is provided in the through hole (108) at the bottom. The two input ends of the three-way pipe (109) away from the through hole (108) are respectively connected to a water pump (10) and an oxygen pump. An atomizing nozzle (110) is provided at the top of the core tube (101).

3. The vegetable cultivation equipment according to claim 2, characterized in that: The cultivation rack (1) has a mounting part (17) at its bottom, and the mounting part (17) includes: The base (171) is fixed to the bottom of the fish pond (2) by screws, and the ear plate seat (172) is fixedly connected to the top axis of the base (171). T-shaped support plate (173) is fixedly connected to the bottom end of the shaft tube (101), and the bottom of the T-shaped support plate (173) is hinged to the ear plate seat (172). The through hole (108) at the bottom penetrates the top of the side wall of the T-shaped support plate (173). Hydraulic cylinders (174) are distributed at an angle on the top of the T-shaped support plate (173) and the side of the base (171), and the bottom end of the hydraulic cylinders (174) is hinged to the base (171). The output shaft of the hydraulic cylinders (174) is hinged to the T-shaped support plate (173). The connecting end of the hydraulic cylinders (174) is provided with a hydraulic mechanism that provides power.

4. The vegetable cultivation equipment according to claim 3, characterized in that: The first bushing (105) has a ring plate (19) rotatably sleeved on the top of its outer side, and a support rod (20) is fixedly connected between two adjacent ring plates (19). The bottom outer side of the second bushing (106) is fixedly connected to a pulley (21), and a transmission belt (22) is sleeved between the outer sides of two adjacent pulleys (21).

5. The vegetable cultivation equipment according to claim 4, characterized in that: The spiral tube (102) is configured as a pagoda-shaped structure with a small top and a large bottom.

6. A method for cultivating vegetables, using the cultivation equipment as described in claim 5, characterized in that: The specific operating steps are as follows: S1: Insert the vegetable roots into the cultivation bottle (3) and use fan-shaped plates to form a support part (4), which is then attached to the outside of the vegetable stem to make it stand stably. Then, insert the installed cultivation bottles (3) into the slotted plate (111) one by one. S2: Turn on the pressurizing air pump (16) and adjust the ball valves and pressure relief valves on the first air pipe (12) and the second air pipe (13), that is, open the ball valve on the first air pipe (12), close the ball valve on the second air pipe (13), close the pressure relief valve on the first air pipe (12) and open the pressure relief valve on the second air pipe (13), so that multiple annular air bags (14) are inflated and the culture bottle (3) is pressed and fixed inside the slotted plate (111); S3: Add the nutrients required by the plants to the inside of the trough board (111) and add water to carry out hydroponics. Combine the fish pond (2) at the bottom of the cultivation rack (1) to raise fish and realize fish-vegetable symbiosis. The plants purify the air of the breeding environment, and the fallen leaves produced by metabolism during the growth process serve as food for the fish. Aeration is carried out in the fish pond (2) by water pump (10) and oxygen pump, and excess oxygen is directed to the vegetable roots during the aeration process, so that the vegetables can absorb more nutrients. S4: When homogenizing the growing environment of vegetables, one of the spiral tubes (102) is rotated so that the first connecting tube (103) and the second connecting tube (104) rotate outside the axial tube (101). Under the transmission of the pulley (21) and the drive belt (22) and the support of the ring plate (19) and the support rod (20), multiple cultivation racks (1) can rotate synchronously. With the buffering effect of the buffer spring (18), the vegetables located in each place can be evenly exposed to light, heat and wind, and the growing environment becomes similar. S5: When harvesting vegetables, the output ends of multiple hydraulic cylinders (174) are extended synchronously by controlling the hydraulic mechanism. The T-shaped support plate (173) is hinged on the ear plate seat (172) to tilt the cultivation rack (1) down. At this time, the pressurized air pump (16) is turned on, and the ball valve on the first air pipe (12) is closed and the ball valve on the second air pipe (13) is opened. At the same time, the pressure relief valve on the first air pipe (12) is opened and the pressure relief valve on the second air pipe (13) is closed. The annular air bag (14) is released, and multiple cylindrical air bags (15) inflate and drag the cultivation bottle (3) outward, so that the vegetables can be easily taken out.

7. A vegetable cultivation method according to claim 6, characterized in that: The S3 includes the steps of root oxygenation, root watering and environmental humidification, and the three steps of root oxygenation, root watering and environmental humidification correspond to the three working frequencies of the water pump (10), namely N1, N2 and N3. Among them, the liquid level sensor (8) senses the water level inside the trough plate (111) in real time. When it is detected that the water level inside the trough plate (111) exceeds the set warning line, no water needs to be added. The first solenoid valve (5) opens and the second solenoid valve (7) closes. At this time, under the working frequency of N1, water mixed with oxygen flows slowly down from the spiral tube (102) and does not fill the entire internal cavity of the spiral tube (102). Oxygen enters the culture bottle (3) from the exhaust hole (112) and the gas delivery pipe (6). When the water level inside the trough plate (111) is detected to reach the set warning line, water is replenished. First, with the first solenoid valve (5) and the second solenoid valve (7) closed, the water pump (10) fills the entire internal chamber of the spiral tube (102) with dissolved oxygen water at the working frequency of N2. Then, the first solenoid valve (5) remains closed, the second solenoid valve (7) is opened, and dissolved oxygen water enters the culture bottle (3) from the replenishment hole (113) until the set upper water level is reached. Then, the second solenoid valve (7) is closed, the working frequency of the water pump (10) is switched back to N1, and when the water flow decreases and the root oxygen replenishment state is restored, the first solenoid valve (5) is opened. When the water level inside the trough plate (111) is not reached to meet the water replenishment requirements, and the environment is moistened periodically as needed, the first solenoid valve (5) and the second solenoid valve (7) are both closed. At the working frequency of N3, water mixed with oxygen passes through the spiral tube (102) and fills the entire internal chamber of the spiral tube (102). Then, it is atomized and sprayed out from the atomizing nozzle (110) to moisten the environment and moisten the surface of the vegetables. The timer (11) keeps track of the time. After the set time is reached, the working frequency of the water pump (10) is switched back to N1, and the first solenoid valve (5) is opened while the second solenoid valve (7) remains closed.

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