Cultivation device and hydroponic system

Abstract

The present invention relates to a cultivation device. The cultivation device comprises: a pipe body, which defines a cultivation space; a first cutting line, which is formed on the pipe body and by means of which at least one bendable area and a body area are divided on the pipe body, wherein a clamping space is formed between the bendable area and the body area, such that a potted plant is clamped in the clamping space; an upper cover, which is arranged at one end of the pipe body; a sprinkler, which is accommodated in the cultivation space and is arranged corresponding to the upper cover so as to atomize an irrigation fluid and and spray same into the cultivation space; and a lower cover, which is arranged at the other end of the pipe body and by means of which the irrigation fluid sprayed from the sprinkler is collected. The pipe body of the cultivation device provided in the present invention is made of an elastic material, the pipe body can support the potted plant when the pipe body is directly connected to the upper cover and to the lower cover, and the bendable area on the pipe body has resilience, such that the potted plant can be tightly clamped on the pipe body, and the plant can grow in the inclined direction of the potted plant, thereby providing a sufficient growth space and light receiving area for the plant.

Description

Plant cultivation device and hydroponic system

TECHNICAL FIELD

[0001] The present invention relates to a plant cultivation device, in particular to a vertical plant cultivation device and hydroponic system.

BACKGROUND

[0002] In the prior art, plants are usually cultivated on a flat surface in a large area. One cultivation method requires a large number of sprinklers to be arranged according to the distribution of the plants, and each sprinkler can only supply water to a small range of plants. After the water is absorbed by the plants, it is difficult to collect and reuse the water, which results in high cultivation costs. Although there is a vertical plant cultivation device composed of an iron frame, which can arrange plants along the height direction to supply water to multiple plants at one time, this type of cultivation device can only be set at a fixed point and is difficult to replace the consumables. After long-term exposure to sunlight and rain, the paint layer will fall off and the frame will rust, which makes the collected irrigation water contain a large amount of toxic substances and heavy metal ions, and it is difficult to reuse the water. Therefore, there is a need for a plant cultivation device that can be flexibly set, has convenient replacement of consumables, and can recycle irrigation water.

SUMMARY

[0003] The present invention aims to provide a plant cultivation device that is easy to set up and can recycle irrigation water.

[0004] To achieve the above-mentioned purpose, the first aspect of the present invention provides a plant cultivation device, comprising: a tube body extending along the height direction and defining a cultivation space; a first cutting line formed on the tube body to divide at least one bendable area and a body area on the tube body, wherein: the bendable area is selectively bent relative to the body area to form a clamping space with the body area, and a potted plant is selectively clamped in the clamping space; an upper cover arranged at one end of the tube body to selectively shield the cultivation space; a sprinkler accommodated in the cultivation space and arranged corresponding to the upper cover to selectively receive irrigation liquid and spray the irrigation liquid after atomization in the cultivation space; and a lower cover arranged at the other end of the tube body to selectively shield the cultivation space and collect the irrigation liquid sprayed from the sprinkler. Specifically, the tube body is composed of a soft material with certain flexibility and elasticity, so that when the environmental wind is strong or an earthquake occurs, the tube body can slightly vibrate to dissipate the force. When the tube body shakes or vibrates, the kinetic energy is dispersed from the body area to the bendable area, so that the whole tube body resonates, thereby better offsetting the influence of wind or vibration, and the potted plant or plant clamped in the clamping space can be maintained stable and will not fall off.

[0005] More preferably, the application further comprises a fixing rope, wherein: one end of the fixing rope is threaded through the upper cover and the position corresponding to the upper cover of the tube body to fix the upper cover and the tube body; and the other end of the fixing rope is threaded through the lower cover and the position corresponding to the lower cover of the tube body to fix the lower cover and the tube body.

[0006] More preferably, the inner diameter of the lower cover gradually decreases from the end of the lower cover in contact with the tube body to the other end.

[0007] The second aspect of the application provides a hydroponic system, comprising: at least one cultivation device according to the first aspect of the application; a liquid storage tank connected to the lower cover to selectively collect and purify the irrigation liquid; a main flow pipe connected to the liquid storage tank and the sprinkler; and a water pump arranged in the liquid storage tank and connected to the main flow pipe to selectively deliver the purified irrigation liquid from the liquid storage tank to the sprinkler.

[0008] More preferably, the application further comprises a branch flow pipe, comprising: at least one input end connected to the main flow pipe; and at least one output end connected to the sprinkler of the cultivation device to deliver the irrigation liquid to the sprinkler of the cultivation device after being branched.

[0009] More preferably, the application further comprises: a water quality monitoring device arranged in the liquid storage tank to monitor the water state of the irrigation liquid, wherein the water state comprises: pH value, conductivity, water level, water temperature, hydrogen ion concentration index, water turbidity, water hardness, chloride content, ammonia nitrogen content, nitrate nitrogen content, nitrite nitrogen content, oxygen content, coliform bacteria content, total bacterial colony count, or metal ion content; and a water quality purification device arranged inside the liquid storage tank and connected to the water quality monitoring device to selectively receive the water state and purify the irrigation liquid to make the water state of the irrigation liquid meet the threshold value.

[0010] More preferably, the application further comprises: a nutrient supply device arranged in the liquid storage tank and connected to the water quality monitoring device to selectively configure nutrient liquid according to the water state and deliver the nutrient liquid to the liquid storage tank to mix with the irrigation liquid.

[0011] More preferably, the application further comprises: a return pipe connected to the lower cover and the liquid storage tank to deliver the irrigation liquid from the lower cover to the liquid storage tank.

[0012] More preferably, the application further comprises: a flushing pipe connected to the main flow pipe and the return pipe; and a flow control valve arranged between the main flow pipe and the flushing pipe to selectively adjust the flow of the irrigation liquid into the flushing pipe.

[0013] More preferably, the irrigation system further comprises a first filter valve disposed between the lower cover and the liquid storage tank to selectively filter particles having a size greater than a first predetermined value from the irrigation liquid, or a second filter valve disposed in the main flow pipe to selectively filter particles having a size greater than a second predetermined value from the irrigation liquid.

[0014] The present application has the advantages that the pipe body is made of elastic material, and the pipe body, the upper cover and the lower cover are directly connected to provide sufficient structural strength to support the potted plants. The cultivation device can be moved in real time according to environmental conditions or light conditions, so that the influence of wind disasters or water disasters on crops can be effectively prevented, and the growth efficiency of crops can be improved. In addition, the bendable area of the pipe body has resilience, so that the potted plants can be tightly clamped on the pipe body, and the plants can grow along the inclined direction of the potted plants, so that the plants have sufficient growth space and light receiving area. In addition, the pipe body is replaceable, so that it can be replaced regularly according to the growth cycle of the plants, so as to avoid damage to the growth of crops caused by long-term irrigation or sunlight, and to ensure the recyclability of the recycled irrigation liquid, so that it can be used in the next irrigation cycle without excessive treatment or filtration. In addition, the present application also provides water quality monitoring devices, water quality purification devices and nutrient supply devices to control the contents of the irrigation liquid, so as to ensure that the irrigation liquid can provide the nutrients required for the growth of crops. In addition, the modular structure design of the present application can freely select the types and planting areas of the plants to be cultivated, and the design of the shunt pipe can avoid pressure loss, so that each watering device of the cultivation device can receive sufficient irrigation liquid, and supply sufficient water and nutrients to the soil and crops of the potted plants. BRIEF DESCRIPTION OF DRAWINGS

[0015] FIG. 1 is a plan view of the cultivation device of the present application, which illustrates the structural features of the cultivation device;

[0016] FIG. 2 is a perspective view of the hydroponic system of the present application, which illustrates the structural features of the hydroponic system;

[0017] FIGS. 3A and 3B are plan views of the hydroponic system of the present application, which illustrate the structural features of the hydroponic system;

[0018] FIG. 4 is a plan view of another embodiment of the hydroponic system of the present application, which illustrates the structural features of the hydroponic system;

[0019] FIG. 5 is a perspective view of the cultivation device of the present application, which illustrates the implementation state of the cultivation device;

[0020] Fig. 6 is a plan view of the cultivation device according to the present application, for illustrating another embodiment of the structural features of the pipe body;

[0021] Figs. 7A and 7B are enlarged partial perspective views of the first cutting line on the pipe body according to the present application, for illustrating the direction of insertion of the perforations formed on the pipe body;

[0022] Fig. 8 is a perspective view of the hydroponic system according to the present application, for illustrating an embodiment of the fixation of the pipe bodies to each other;

[0023] Fig. 9 is a plan view of the hydroponic system according to the present application, for illustrating another embodiment of the drainage method.

[0024]

IMPLEMENTATION

[0025] In order to make the above and / or other purposes, effects, features of the present application more apparent, the following preferred embodiments are described in detail:

[0026] The present invention aims to provide a cultivation device (1), as shown in Fig. 1, comprising: a tube body (2) extending along a height direction and defining a cultivation space (3); a first cutting line (4) formed on the tube body (2) to divide the tube body (2) into at least one bendable area (5) and a body area (6), wherein: the bendable area (5) is selectively bent relative to the body area (6) to form a clamping space (7) with the body area (6) and selectively clamp a potted plant in the clamping space (7); an upper cover (8) arranged at one end of the tube body (2) to selectively shield the cultivation space (3); a sprinkler (9) accommodated in the cultivation space (3) and arranged corresponding to the upper cover (8) to selectively receive irrigation liquid and spray the irrigation liquid after atomization in the cultivation space (3); and a lower cover (10) arranged at the other end of the tube body (2) to selectively shield the cultivation space (3) and collect the irrigation liquid sprayed from the sprinkler (9). In a preferred embodiment, in order to deliver irrigation liquid to the sprinkler (9), the upper cover (8) forms an upper opening to communicate the inside and outside of the tube body (2), and the sprinkler (9) is arranged in the upper cover (8) and communicates with the upper opening. In another preferred embodiment, the sprinkler (9) is arranged on the upper cover (8) in an extendable manner to selectively reciprocate in the cultivation space (3) relative to the upper cover (8) along the direction from the upper cover (8) to the lower cover (10) to irrigate the irrigation liquid to each height of the potted plant. In yet another preferred embodiment, in order to plant potted plants of various sizes or to place the potted plants in an up-down staggered manner so that the plants in the potted plants do not interfere with each other during growth and can receive sufficient sunlight, further comprising: a second cutting line arranged on the tube body (2) at intervals or staggered with the first cutting line (4). In yet another preferred embodiment, in order to maintain the cylindrical shape of the tube body (2), the side of the upper cover (8) in contact with the tube body (2) forms a first circular groove, and the side of the lower cover (10) in contact with the tube body (2) forms a second circular groove, so that the two ends of the tube body (2) can be respectively inserted into the first circular groove and the second circular groove, and the structural strength and stability of the tube body (2) are improved. In yet another preferred embodiment, in order to ensure that each potted plant arranged along the height direction on the tube body (2) can receive sufficient water, the number of sprinklers (9) is one or more, preferably 1 to 3. It can be understood that each sprinkler (9) is selectively arranged in sequence along the extension direction of the length of the tube body (2) and is selectively arranged in the upper cover (8) or the part of the cultivation space (3) corresponding to the tube body (2).

[0027] More preferably, the first cutting line (4) is arc-shaped, and the opening of the arc-shaped is downward, so that the bendable region (5) of the tube body (2) can be rotated around the position where the bendable region (5) is connected to the body region (6) of the tube body (2), and relative to the cultivation space (3), and a clamping space (7) is defined between the body region (6) of the tube body (2). In addition, the tube body (2) is made of elastic material, so that when the bendable region (5) is released in the bent state, the bendable region (5) will automatically rebound to the initial position. By the above mechanism, the pot can be optionally clamped in the clamping space (7), and one end of the pot passes through the tube body (2) and contacts the cultivation space (3) to receive the irrigation liquid provided by the sprinkler (9). Since the bendable region (5) can clamp the pot, the pot can present an inclined angle, so that the plant can have better growth space and light receiving area. In addition, when the pot is clamped by the bendable region (5), the pot is pressed on the tube body (2) and contacts the inner and outer sides of the tube body (2), so as to further improve the fixation and stability of the pot, and prevent the pot from shaking due to wind or external force.

[0028] More preferably, in order to maintain the stability of the overall structure of the cultivation device (1), a fixing rope (11) is further included, wherein: one end of the fixing rope (11) is threaded through the upper cover (8) and the position corresponding to the tube body (2) of the upper cover (8) to fix the two; and the other end of the fixing rope (11) is threaded through the lower cover (10) and the position corresponding to the tube body (2) of the lower cover (10) to fix the two. In a preferred embodiment, a strap is further included, which is bound to the middle part of the tube body (2) and connected to the fixing rope (11), so as to further improve the bonding strength between the upper cover (8), the lower cover (10) and the tube body (2). In another preferred embodiment, in order to improve the efficiency of collecting irrigation liquid and prevent the components contained in the irrigation liquid from caking or precipitating, the inner diameter of the lower cover (10) gradually decreases from the end of the lower cover (10) in contact with the tube body (2) to the other end. In yet another preferred embodiment, the inside of the lower cover (10) includes a tapered space, and the tapered space gradually shrinks in the direction of the lower cover (10) relative to the cultivation space (3).

[0029] Another object of the present application is to provide a hydroponic system (12) as shown in Figs. 2-3A, comprising at least one cultivation device (1) as described above; a reservoir (13) connected to the lower cover (10) for selectively collecting and purifying the irrigation liquid; a main flow pipe (14) connected to the reservoir (13) and the sprinkler (9), respectively; and a water pump (15) disposed in the reservoir (13) and connected to the main flow pipe (14) for selectively delivering the purified irrigation liquid from the reservoir (13) to the sprinkler (9). In particular, the hydroponic system (12) can deliver and irrigate the potted plants in the tube (2) with the irrigation liquid, collect the irrigation liquid dripping or sliding from the tube (2) due to gravity, and recycle the remaining irrigation liquid by returning it to the reservoir (13) for purification. In a preferred embodiment, the first cutting line (4) or the second cutting line is disposed at the middle portion of the tube (2), and the corresponding portion of the tube (2) and the sprinkler (9) is free of the first cutting line (4) or the second cutting line to prevent the irrigation liquid sprayed from the sprinkler (9) from flowing out of the tube (2) through the gap between the bendable region (5) and the body region (6) of the tube (2), thereby avoiding waste in use.

[0030] More preferably, to avoid pressure loss and uneven distribution of the irrigation liquid to the sprinklers (9) of the cultivation devices (1), the hydroponic system (12) further comprises a flow divider (16) as shown in Figs. 3A-3B, comprising at least one input end (17) connected to the main flow pipe (14) and at least one output end (18) connected to the sprinkler (9) of the cultivation device (1) for delivering the irrigation liquid to the sprinkler (9) of the cultivation device (1). In a preferred embodiment, to improve the effect of the flow divider, the flow divider has one input end (17) and three output ends (18), but is not limited thereto.

[0031] More preferably, to ensure the water quality of the irrigation liquid so that the plant can obtain sufficient nutrients and moisture, wherein further comprising: a water quality monitoring device (19) disposed in the liquid storage tank (13) to monitor a water state of the irrigation liquid, wherein the water state comprises: pH value, conductivity, water level, water temperature, hydrogen ion concentration index, water turbidity, water hardness, chloride content, ammonia nitrogen content, nitrate nitrogen content, nitrite nitrogen content, oxygen content, coliform bacteria content, total bacterial colony count, or metal ion content; and a water quality purification device (20) disposed inside the liquid storage tank (13) and connected with the water quality monitoring device (19) to selectively receive the water state and purify the irrigation liquid so that the water state of the irrigation liquid meets a threshold value. In a preferred embodiment, the connection between the water quality monitoring device (19) and the water quality purification device (20) includes electrical connection or signal connection, but is not limited thereto. In another preferred embodiment, to facilitate maintenance or cleaning of the water quality purification device (20), wherein the water quality purification device (20) is independently disposed outside the liquid storage tank (13) and selectively communicates with the inside of the liquid storage tank (13) through a pipeline to extract the liquid contained in the liquid storage tank (13) and deliver it back to the liquid storage tank (13) after purification.

[0032] More preferably, wherein further comprising: a nutrient supply device (21) disposed in the liquid storage tank (13) and connected with the water quality monitoring device (19) to selectively configure a nutrient liquid according to the water state and deliver the nutrient liquid into the liquid storage tank (13) to mix with the irrigation liquid. In a preferred embodiment, the nutrient supply device (21) comprises: a water storage tank for storing and supplying water; a first raw material tank for storing and supplying A agent; and a second raw material tank for storing and supplying B agent; and a stirring box connected with the water storage tank, the first raw material tank, the second raw material tank, and the liquid storage tank (13) respectively to selectively receive water, A agent, and B agent and stir and mix them to configure the nutrient liquid and deliver the nutrient liquid into the liquid storage tank (13). In another preferred embodiment, to effectively control the concentration of nutrients, the nutrient supply device (21) can automatically dilute the nutrient liquid.

[0033] More preferably, in order to simultaneously receive the irrigation liquid flowing out of the lower cover (10) of multiple cultivation devices (1), as shown in FIG. 4, a return pipe (22) is further included, which is connected with the lower cover (10) of the cultivation device (1) and the liquid storage tank (13) respectively, so as to transport the irrigation liquid from the lower cover (10) to the liquid storage tank (13). In a preferred embodiment, when the irrigation liquid flows back from the lower cover (10) to the liquid storage tank (13) for a long time, impurities may be accumulated, foreign matters or soil may be adhered, and bacteria may be bred or the pipe may be blocked. In order to regularly dredge the pipe, remove bacteria, and clean, a flushing pipe (23) is further included, which is connected with the main flow pipe (14) and the return pipe (22) respectively, and a flow control valve (24) is arranged between the main flow pipe (14) and the flushing pipe (23), so as to selectively adjust the flow of the irrigation liquid into the flushing pipe (23). In another preferred embodiment, in order to prevent sand or particles with a larger particle size from entering the liquid storage tank (13), or prevent impurities in the irrigation liquid from damaging the internal structure of the water pump (15) when the water pump (15) extracts the irrigation liquid in the liquid storage tank (13), a first filter valve (25) is further included, which is arranged between the lower cover (10) and the liquid storage tank (13), so as to selectively filter particles with a particle size greater than a first preset value in the irrigation liquid, or a second filter valve (26) is arranged in the main flow pipe (14), so as to selectively filter particles with a particle size greater than a second preset value in the irrigation liquid. It can be understood that the first preset value is greater than the second preset value, but is not limited thereto. In yet another preferred embodiment, the flushing pipe (23) is selectively connected with a water supply device, so that the water supply device can selectively transport clean water into the flushing pipe (23) and clean the flushing pipe (23). In yet another preferred embodiment, the first filter valve (25) or the second filter valve (26) is a bag filter or a barrel filter, but is not limited thereto.

[0034] More preferably, in order to reduce the erection cost of the cultivation device (1) of the present application, as shown in FIG. 5, the cultivation device (1) can be erected on a plastic chair, but is not limited thereto. In a preferred embodiment, as shown in FIG. 6, the first cutting line (4) is replaced by a perforation, so that the perforation selectively allows the pot to be inserted. In another preferred embodiment, as shown in FIG. 7A, the insertion direction of the perforation is perpendicular to the extension direction of the length of the pipe body (2); or as shown in FIG. 7B, the insertion direction of the perforation forms an acute angle with the central axis of the pipe body (2), and the opening of the acute angle faces upward, so that the pot can be placed obliquely and grow upward and receive sunlight.

[0035] More preferably, as shown in FIG. 8, when the water culture system (12) has multiple cultivation devices (1) at the same time, the rope body can be wound around the outer edge of the pipe body (2), and the adjacent rope bodies can be connected and fixed by a fixing rope to improve the support strength of the cultivation device (1) and maintain the stability of the water culture system (12). In a preferred embodiment, the rope body or the fixing rope is a cotton rope, a hemp rope or a nylon rope, but is not limited thereto. As shown in FIG. 9, in order to avoid contamination of the irrigation liquid, the water culture system (12) further comprises a discharge pipe arranged on the return pipe (22) to selectively discharge the waste water after cleaning the return pipe (22) outside the return pipe (22) without flowing into the liquid storage tank (13) again; and a shunt valve arranged on the return pipe (22) to selectively control the flow direction of the irrigation liquid or the waste water.

[0036] The effect of the present application over the prior art is that the pipe body (2) is made of elastic material, and the pipe body (2) is directly connected with the upper cover (8) and the lower cover (10), so that the pipe body (2) has sufficient structural strength and supports the potted plants. The present application has high mobility, and can migrate the cultivation device (1) in real time according to the environmental state or light conditions, so as to effectively prevent the influence of wind disasters or water disasters on crops and improve the growth efficiency of crops. In addition, the bendable area (5) on the pipe body (2) has resilience, so that the potted plants can be tightly clamped on the pipe body (2), and the plants can grow along the inclined direction of the potted plants, so that the plants have sufficient growth space and light receiving area. In addition, the pipe body (2) is replaceable, so that it can be replaced regularly according to the growth cycle of the plants, so as to avoid damage to the growth of crops due to the residues of foreign matters or the breeding of bacteria on the pipe body (2) under long-term irrigation or sunlight, and to ensure the recyclability of the recycled irrigation liquid, so that it can be used in the next irrigation cycle without excessive treatment or filtration. In addition, the present application further comprises a water quality monitoring device (19), a water quality purification device (20) and a nutrient supply device (21) to control the contents in the irrigation liquid, so as to ensure that the irrigation liquid can provide the nutrients required for the growth of crops. In addition, the modular structure design of the present application can freely select the types of plants to be cultivated and the planting area, and the design of the shunt pipe (16) can avoid pressure loss, so that each sprinkler (9) of the cultivation device (1) can receive sufficient irrigation liquid and supply sufficient water and nutrients to the soil and crops of the potted plants.

[0037] The above descriptions are only the preferred embodiments of the present application, and cannot limit the scope of the present application. Any simple equivalent changes and modifications made according to the scope of the present application and the content of the present application are still within the scope of the present application. In addition, any embodiment or scope of the present application does not necessarily achieve all the purposes or advantages or features disclosed in the present application. Furthermore, the abstract and title are only used to assist the search of the patent document, and are not used to limit the scope of the present application. In addition, the terms first, second, etc. mentioned in the specification are only used to represent the names of elements, and are not used to limit the upper or lower limit of the number of components.

[0038] [Symbol Description] 1 Cultivation device 2 Tube body 3 Cultivation space 4 First cutting line 5 Foldable area 6 Body area 7 Clamping space 8 Upper cover 9 Sprinkler 10 Lower cover 11 Fixed rope 12 Hydroponic system 13 Liquid storage tank 14 Main flow pipe 15 Water pump 16 Branch flow pipe 17 Input end 18 Output end 19 Water quality monitoring device 20 Water quality purification device 21 Nutrient supply device 22 Return flow pipe 23 Flushing pipeline 24 Flow control valve 25 First filter valve 26 Second filter valve

Claims

1. A cultivation device, characterized in that, Comprising: a tube body, extending along a height direction and being divided into a cultivation space; a first cutting line formed on the tube body to divide the tube body into a bendable region and a body region, wherein the bendable region is selectively bendable relative to the body region to form a clamping space with the body region, so that a potted plant is selectively clamped in the clamping space; an upper cover arranged at one end of the tube body to selectively shield the cultivation space; a sprinkler accommodated in the cultivation space and arranged corresponding to the upper cover to selectively receive irrigation liquid, and to spray the irrigation liquid after atomization in the cultivation space; and a lower cover arranged at the other end of the tube body to selectively shield the cultivation space and collect the irrigation liquid sprayed from the sprinkler.

2. The cultivation device according to claim 1, characterized in that Further comprising: a fixing rope, one end of which is arranged through the upper cover and a position corresponding to the upper cover of the tube body to fix the upper cover and the tube body; and the other end of the fixing rope is arranged through the lower cover and a position corresponding to the lower cover of the tube body to fix the lower cover and the tube body.

3. The cultivation device according to claim 1, characterized in that The inner diameter of the lower cover gradually decreases from one end of the lower cover in contact with the tube body to the other end.

4. A hydroponic system characterized by, Comprising: at least one cultivation device according to any one of claims 1-3; a liquid storage tank connected with the lower cover of the cultivation device to selectively collect and purify the irrigation liquid; a main flow pipe connected with the liquid storage tank and the sprinkler of the cultivation device, respectively; and a water pump arranged in the liquid storage tank and connected with the main flow pipe to selectively transport the purified irrigation liquid from the liquid storage tank to the sprinkler. Further comprising a shunt pipe, 5. The hydroponic system of claim 4, wherein, the shunt pipe comprising: an input end connected with the main flow pipe; and an output end connected with the sprinkler of the cultivation device to transport the irrigation liquid to the sprinkler of the cultivation device after shunting. Further comprising:

6. The hydroponic system of claim 4, wherein, a water quality monitoring device arranged in the liquid storage tank to monitor a water state of the irrigation liquid, wherein the water state comprises pH value, conductivity, water level, water temperature, hydrogen ion concentration index, water quality turbidity, water quality hardness, chlorine salt content, ammonia nitrogen content, nitrate nitrogen content, nitrite nitrogen content, oxygen content, coliform group content, total bacterial colony count, or metal ion content; and a water quality purification device arranged inside the liquid storage tank and connected with the water quality monitoring device to selectively receive the water state and purify the irrigation liquid so that the water state of the irrigation liquid meets a threshold value. Further comprising:

7. The hydroponic system of claim 6, wherein, a nutrient supply device arranged in the liquid storage tank and connected with the water quality monitoring device to selectively configure nutrient liquid according to the water state and transport the nutrient liquid to the liquid storage tank to mix with the irrigation liquid. Further comprising:

8. The hydroponic system of claim 4, wherein, a return pipe connected with the lower cover and the liquid storage tank, respectively, to transport the irrigation liquid from the lower cover to the liquid storage tank. Further comprising:

9. The hydroponic system of claim 8, wherein, a flushing pipeline connected with the main flow pipe and the return pipe, respectively; and a flow control valve arranged between the main flow pipe and the flushing pipeline to selectively adjust the flow of the irrigation liquid into the flushing pipeline. Further comprising:

10. The hydroponic system of claim 4, wherein, ​ A first filter valve is arranged between the lower cover and the liquid storage tank to selectively filter particles having a size greater than a first predetermined value from the irrigation liquid. A second filter valve is arranged in the main flow pipe to selectively filter particles having a size greater than a second predetermined value from the irrigation liquid.

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