CN110012830B

CN110012830B - Prevent soilless culture vegetable planting device of root system oxygen deficiency protection rhizome

Info

Publication number: CN110012830B
Application number: CN201910141663.8A
Authority: CN
Inventors: 张康康
Original assignee: Huaian Tianmao Agricultural Technology Co ltd
Current assignee: Huaian Tianmao Agricultural Technology Co.,Ltd.
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2021-05-11
Anticipated expiration: 2039-02-26
Also published as: CN110012830A

Abstract

The invention discloses a soilless culture vegetable planting device for preventing root system from being anoxic and protecting roots, which structurally comprises a culture seat, an upper cover plate, a soilless culture device, an oxygen supply pipe, a nutrient solution groove and a motor, wherein nutrient solution flows to a nutrient solution guide pipe through a guide pipeline, the roots of Chinese chives are sprayed by a spray head to wet the roots and prevent the roots from being festered, the survival rate of the Chinese chives is improved, when the nutrient solution passes through the guide pipeline, a vibration film is driven by a sound wave diffuser to vibrate to squeeze air in an air cavity, a dielectric medium is squeezed to form a current guide electromagnet to adsorb a fixed plate main body to move, the situation that the spray head sprays the roots and the roots of the Chinese chives for a long time to influence growth is avoided, a rotator is pushed by the nutrient solution to rotate to push a sliding guide pillar to move upwards, a movable plate moves upwards to squeeze an air bag to guide oxygen to the roots of the, and the arc top plays the effect of dispersed root system through its circular arc surface and avoids the root system to form the root pad and make the plant lack of water.

Description

Prevent soilless culture vegetable planting device of root system oxygen deficiency protection rhizome

Technical Field

The invention relates to the technical field of vegetable planting, in particular to a soilless culture vegetable planting device capable of preventing root systems from being anoxic and protecting roots.

Background

Soilless culture is a new culture mode of replacing soil with nutrient solution or solid matrix and nutrient solution, and the soilless culture technology has good development prospect as a high and new technology of modern agricultural facility culture, but the current technical consideration is not comprehensive, and the following defects are achieved:

for example, when the Chinese chives are planted, the Chinese chives are strong in adaptability, cold-resistant and heat-resistant, and are cultivated everywhere in the country, but the Chinese chives have developed root systems, thick root cushions are formed at the bottoms of the grooves when the roots are large, nutrient solution flows unsmooth inside the root cushions, the root cushions are anoxic and rot, the nutrient solution flows unsmooth, plants lack water and are rapidly withered, only the root systems of the Chinese chives grow in the nutrient solution, the stems of the Chinese chives are exposed in the air, and the roots of the Chinese chives are not protected, so that the roots are easy to fester in soilless cultivation pipelines, and the Chinese chives die.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a soilless culture vegetable planting device capable of preventing roots from being anoxic and protecting roots, so that the problems that in the prior art, for example, when Chinese chives are planted, the Chinese chives are strong in adaptability, cold and heat resistant, and cultivated everywhere in the whole country, but the roots of the Chinese chives are developed, thick root pads are formed at the bottoms of the grooves when the roots are large, nutrient solution flows in the root pads difficultly, so that the root pads are anoxic and rot, and the nutrient solution flows difficultly, so that plants lack of water and are rapidly withered are solved, only the roots of the Chinese chives are grown in the nutrient solution, the stems of the Chinese chives are exposed in the air, the roots of the Chinese chives are not protected, and the roots are easy to be ulcerated in a soilless culture pipeline, so that the Chinese chives die.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a soilless culture vegetable planting device for preventing root system from being lack of oxygen and protecting rootstock structurally comprises a culture seat, an upper cover plate, a soilless culture device, an oxygen supply pipe, a nutrient solution groove and a motor, the cultivation seat penetrates through the upper cover plate, the lower end of the cultivation seat is embedded and installed in the soilless culture device, the upper cover plate is arranged above the soilless culture device and welded with the soilless culture device into an integrated structure, the oxygen supply pipe is positioned below the soilless culture device and is connected with the soilless culture device, the nutrient solution groove is arranged at the left side of the motor and is connected with the motor, the soilless culture device comprises a shunt conduit, a stem protector and an oxygen supply root-proof pad device, wherein the shunt conduit is connected with the side surface of the lower end of the stem protector, the oxygen supply root prevention pad device is arranged below the stem protection device and is connected with the lower end of the stem protection device.

As a further aspect of the present invention, the shunt tube includes a stem supply hole, a shunt, and a root supply hole, the stem supply hole is installed above the shunt, and the root supply hole is installed below the shunt.

As a further scheme of the present invention, the stem protection device includes a fixing plate main body, a nutrient solution flow guide pipe, a positioning ring, a spray head, and a fixing plate moving device, wherein the spray head is provided with a plurality of positioning rings annularly distributed at equal intervals on the inner side, and the nutrient solution flow guide pipe is embedded in the fixing plate main body and connected with the positioning rings.

As a further aspect of the present invention, the oxygen supply root prevention device comprises an oxygen supply conduit, a rotator, a sliding guide pillar, an oxygen injection device, and an arc-shaped top end, wherein the oxygen supply conduit is installed below the oxygen supply conduit and is connected with the oxygen supply conduit in a penetrating manner, the rotator is installed below the sliding guide pillar and is connected with the lower surface of the sliding guide pillar in a sliding manner, the sliding guide pillar is connected with the oxygen injection device, and the oxygen injection device is embedded and installed above the arc-shaped top end.

As a further scheme of the invention, the oxygen injection device comprises a rubber sealing block, an air bag and a moving plate, wherein the air bag is arranged below the rubber sealing block, the upper end of the air bag is embedded in the rubber sealing block, and the air bag is positioned on the moving plate and fixedly connected with the moving plate in a welding mode.

As a further scheme of the invention, the sliding guide column is of a guide column structure with an arc-shaped interface at the lower end of a main body which is hollow inside, and a one-way valve is arranged inside the sliding guide column and used for limiting the air flow direction to flow to the air bag through the one-way valve.

As a further scheme of the present invention, the fixing plate moving device includes a drainage pipeline, a sound wave diffuser, a vibration membrane, an air cavity, an elastic element, a permanent magnet, a dielectric, and an electromagnet, wherein the upper end of the drainage pipeline is embedded in the fixing plate main body and connected with the nutrient solution flow guide pipe, the sound wave diffuser is disposed on the outer surface of the drainage pipeline and is in fit-through connection with the drainage pipeline, the outer surface of the sound wave diffuser is attached to the outer surface of the vibration membrane, the elastic element is welded to the upper surface of the fixing plate main body by electric welding, the permanent magnet is provided with two permanent magnets symmetrically mounted on two sides of the elastic element, and the dielectric is disposed below the electromagnet and is electrically.

As a further scheme of the invention, the sound wave diffuser is composed of a circle of arc-shaped circular rings, and the sound wave vibration effect can be better achieved through the arc-shaped structure.

As a further scheme of the invention, the arc-shaped top end is of an arc-shaped outer surface structure, and the root system is prevented from forming a root cushion by the effect of dispersing the root system through the arc-shaped outer surface.

As a further scheme of the invention, the rhizome of the Chinese chives is sprayed by the spray head to wet the rhizome, so that the root and the rhizome are prevented from being ulcerated, and the survival rate of the Chinese chives is improved.

As a further aspect of the present invention, the sliding guide post and the rotator are both arc-shaped surfaces, so that the sliding guide post is pushed to move upwards by the rotation of the rotator.

As a further scheme of the invention, the upper end of the drainage pipeline is of a flexible folding pipeline structure, so that the drainage pipeline can better match with the fixing plate main body to move.

As a further scheme of the invention, the two rubber sealing blocks are connected in a clamping groove mode to avoid backflow of nutrient solution.

Advantageous effects of the invention

Compared with the traditional vegetable planting device for soil cultivation, under the action of the stem protection device, nutrient solution flows to the nutrient solution guide pipe through the drainage pipe, the roots and stems of the Chinese chives are sprayed through the spray head to moisten the roots and stems and avoid the roots and stems from being canker, the survival rate of the Chinese chives is improved, the spray head is provided with a plurality of annular equally-distributed parts on the inner side of the positioning ring, so that the spray angle is more comprehensive, dead corners are avoided, when the nutrient solution passes through the drainage pipe, the sound wave vibration effect can be better achieved through the arc-shaped structure of the sound wave diffuser, the vibration film is driven to vibrate to extrude air in the air cavity, the dielectric medium is extruded to form current guide electromagnets to adsorb the fixing plate main body to move downwards, the dielectric medium can form discontinuous current due to the reciprocating motion between the vibration film, and the fixing plate main body can move up and down to avoid the influence of excessive moisture on the roots and stems of the Chinese chives Long.

Under the action of the oxygen supply root pad prevention device, the nutrient solution pushes the rotator to rotate to push the sliding guide post to move upwards, so that the moving plate moves upwards to extrude the air bag to limit the air flow direction to flow towards the air bag through the one-way valve, oxygen is guided to the root system of the Chinese chives to avoid rotting caused by oxygen deficiency, and meanwhile, the arc-shaped top end plays a role in dispersing the root system through the arc outer surface of the arc-shaped top end to avoid the root system from forming a root pad to cause water shortage of plants.

Drawings

Other features, objects and advantages of the invention will become more apparent from a reading of the detailed description of non-limiting embodiments with reference to the attached drawings.

In the drawings:

FIG. 1 is a schematic structural view of a soilless culture vegetable planting device for preventing root systems from being anoxic and protecting rootstocks.

FIG. 2 is a plan view showing the structure of a vegetable planting device for soilless culture according to the present invention.

Fig. 3 is a schematic structural diagram of a soilless culture device of the present invention.

Fig. 4 is a schematic structural view of a shunt catheter of the present invention.

Fig. 5 is a schematic top view of a stem protector according to the present invention.

Fig. 6 is a schematic structural view of an oxygen supply root prevention pad device according to the present invention.

Fig. 7 is a schematic structural diagram of an oxygen injection device according to the present invention.

Fig. 8 is an enlarged view of a portion of the structure of fig. 6 according to the present invention.

Fig. 9 is a front view of a fixing plate moving device according to the present invention.

In the figure: a cultivation seat-1, an upper cover plate-2, a soilless cultivation device-3, an oxygen supply pipe-4, a nutrient solution groove-5, a motor-6, a diversion conduit-31, a stem protection device-32, an oxygen supply root prevention pad device-33, a stem flow supply hole-3101, a diverter-3102, a root system flow supply hole-3103, a fixing plate main body-3201, a nutrient solution diversion pipe-3202, a positioning ring-3203, a spray head-3204, a fixing plate moving device-3205, an oxygen supply conduit-3301, a rotator-3302, a sliding guide pillar-3303, an oxygen spraying device-3304, an arc top-3305, a rubber sealing block-a, an air bag-b, a moving plate-c, a drainage pipeline-320501, a sound wave diffuser-320502, a vibration film-320503, a, Air cavity-320504, elastic element-320505, permanent magnet-320506, dielectric-320507, electromagnet-320508.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in figures 1-9, the invention provides a technical scheme of a soilless culture vegetable planting device for preventing roots from being anoxic and protecting rootstocks:

as shown in figures 1-3, a cultivation seat 1, an upper cover plate 2, a soilless culture device 3, an oxygen supply pipe 4, a nutrient solution tank 5 and a motor 6, the cultivation seat 1 penetrates through the upper cover plate 2, the lower end of the cultivation seat 1 is embedded and installed in the soilless culture device 3, the upper cover plate 2 is arranged above the soilless culture device 3 and is welded with the soilless culture device 3 into an integrated structure, the oxygen supply pipe 4 is positioned below the soilless culture device 3 and is connected with the soilless culture device 3, the nutrient solution tank 5 is arranged at the left side of the motor 6 and is connected with the motor 6, the soilless culture device 3 comprises a diversion conduit 31, a stem protection device 32 and an oxygen supply root prevention pad device 33, the shunt tube 31 is connected to the lower end side surface of the stem protector 32, and the oxygen supply root guard device 33 is disposed below the stem protector 32 and connected to the lower end of the stem protector 32.

As shown in fig. 4, the shunt catheter 31 includes a stem supply hole 3101, a shunt 3102, and a root supply hole 3103, the stem supply hole 3101 is installed above the shunt 3102, and the root supply hole 3103 is installed below the shunt 3102.

As shown in fig. 5, the stem protector 32 includes a fixing plate main body 3201, a nutrient solution guide tube 3202, a positioning ring 3203, a spray head 3204, and a fixing plate moving device 3205, wherein the spray head 3204 is provided with a plurality of positioning rings 3203 distributed in an equidistant annular shape, and the nutrient solution guide tube 3202 is embedded in the fixing plate main body 3201 and connected with the positioning ring 3203.

As shown in fig. 6, the oxygen supply root prevention device 33 includes an oxygen supply duct 3301, a rotator 3302, a sliding guide column 3303, an oxygen injection device 3304, and a curved top end 3305, wherein the oxygen supply duct 4 is installed below the oxygen supply duct 3301 and is connected to the oxygen supply duct 3301, the rotator 3302 is installed below the sliding guide column 3303 and is connected to the lower surface of the sliding guide column 3303 in a sliding manner, the sliding guide column 3303 is connected to the oxygen injection device 3304, and the oxygen injection device 3304 is inserted into and installed above the curved top end 3305.

As shown in fig. 7, the oxygen injection device 3304 includes a rubber sealing block a, an air bag b, and a moving plate c, wherein the air bag b is disposed below the rubber sealing block a, the upper end of the air bag b is embedded in the rubber sealing block a, and the air bag b is disposed on the moving plate c and fixedly connected thereto by welding.

As shown in fig. 8, the sliding guide post 3303 is a hollow guide post structure with an arc-shaped opening at the lower end of the main body, and a check valve is provided inside to limit the air flow to the air bag b.

As shown in fig. 9, the fixing plate moving device 3205 includes a flow guiding duct 320501, a sound wave diffuser 320502, a diaphragm 320503, an air chamber 320504, an elastic member 320505, a permanent magnet 320506, a dielectric 320507, and an electromagnet 320508, an upper end of the flow guiding duct 320501 is embedded in the fixing plate main body 3201 and connected with the nutrient solution flow guiding pipe 3202, the sound wave diffuser 320502 is disposed on an outer surface of the flow guiding duct 320501 and is in through connection with the flow guiding duct 320501, an outer surface of the sound wave diffuser 320502 is attached to an outer surface of the diaphragm 320503, the elastic member 320505 is welded to an upper surface of the fixing plate main body 3201 by electric welding, the permanent magnet 320506 is disposed symmetrically on both sides of the elastic member 320505, and the dielectric 320507 is disposed below the electromagnet 320508 and is electrically connected.

The specific realization principle is as follows: the starter motor 6 guides the nutrient solution in the nutrient solution groove 5 into the soilless culture device 3 to form nutrient solution circulation, the nutrient solution is divided by the shunt 3102 in the shunt conduit 31, a part of the nutrient solution flows into the stem protection device 32, the nutrient solution flows to the nutrient solution guide pipe 3202 through the drainage conduit 320501, the roots and the stems of the Chinese chives are sprayed by the spray head 3204 to wet the roots and the stems to avoid the root and the stems from being canker, the survival rate of the Chinese chives is improved, the spray head 3204 is provided with a plurality of annular equally-spaced distribution on the inner side of the positioning ring 3203 to ensure that the spray angle more comprehensively avoid dead corners, when the nutrient solution passes through the drainage conduit 320501, the arc-shaped structure of the sound wave diffuser 320502 can better play a sound wave vibration effect, so as to drive the vibration membrane 320503 to vibrate to squeeze the air in the air cavity 320504, and the dielectric 320507 is squeezed to form a current guide electromagnet 320508 to adsorb the fixing plate, because vibrating diaphragm 320503 vibrates and thereby reciprocating motion dielectric 320507 can form discontinuous electric current, thereby make fixed plate main part 3201 reciprocating motion from top to bottom avoid atomising head 3204 to the rhizome of leek the same place long-term spraying lead to the rhizome excessive moisture to influence the growth, in the root pad device 33 is prevented to another part nutrient solution flow direction oxygen suppliment, nutrient solution promotes the circulator 3302 rotation and promotes the sliding guide post 3303 rebound, thereby movable plate c rebound extrusion gasbag b flows to gasbag b through check valve b1 restriction air current direction, lead the root system of leek to oxygen direction and avoid the root system oxygen deficiency and rot, and rubber seal block a is equipped with two and connects through the draw-in groove mode and avoid the nutrient solution backward flow. Simultaneously, the arc top 3305 prevents the root system from forming a root cushion to cause the plant to lack water by playing the effect of dispersing the root system through the arc outer surface.

The invention solves the problems that in the prior art, for example, when the Chinese chives are planted, the Chinese chives are strong in adaptability, cold-resistant and heat-resistant, and are cultivated everywhere in China, but the Chinese chives have developed root systems, when the root amount is large, thick root pads are formed at the bottoms of the grooves, nutrient solution flows unsmooth in the root pads, so that the root pads are anoxic and rotten, and the nutrient solution flows unsmooth, so that the plants lack water and are quickly withered, only the root systems of the Chinese chives grow in the nutrient solution, the stems of the Chinese chives are exposed in the air, and the protection for the roots of the Chinese chives is lacked, so that the roots are easy to be rotted in a soilless cultivation pipeline, and the Chinese chives die, the invention uses the mutual combination of the components, under the action of a stem protection device, the nutrient solution flows to a nutrient solution guide pipe through the guide pipe, and sprays on the Chinese chives through a spray nozzle to moisten the roots and avoid the, the survival rate of the Chinese chives is improved, the spraying angle is more comprehensively prevented from dead angles by arranging a plurality of annular spraying heads on the inner side of the positioning ring at equal intervals, when the nutrient solution passes through the drainage pipeline, the sound wave vibration effect can be better played by the arc-shaped structure of the sound wave diffuser, so that the vibration of the vibration film is driven to extrude the air in the air cavity, the dielectric medium is extruded to form current to be led into the electromagnet to adsorb the fixing plate main body to move downwards, the dielectric medium can form discontinuous current due to the reciprocating motion of the vibration film, the fixing plate main body can reciprocate up and down to avoid that the spraying heads spray the same part of the Chinese chives for a long time to cause that the moisture of roots and stems affects the growth, under the action of the oxygen supply root prevention pad device, the nutrient solution pushes the rotator to rotate to push the sliding guide pillar to move upwards, so that the moving plate moves upwards to extrude the, the root system that leads leek with oxygen avoids the root system oxygen deficiency and rot, and the effect that the arc top played dispersed root system through its circular arc surface simultaneously avoids the root system to form the root pad and makes the plant lack of water.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a prevent soilless culture vegetable planting device of root system oxygen deficiency protection rhizome, its structure includes cultivation seat (1), upper cover plate (2), soilless culture device (3), oxygen supply pipe (4), nutrient solution groove (5), motor (6), its characterized in that: the cultivation seat (1) penetrates through the upper cover plate (2) and the lower end of the cultivation seat (1) is embedded into the soilless culture device (3), the upper cover plate (2) is arranged above the soilless culture device (3) and welded with the soilless culture device (3) to form an integrated structure, the oxygen supply pipe (4) is positioned below the soilless culture device (3) and connected with the soilless culture device (3), and the nutrient solution groove (5) is arranged on the left side of the motor (6) and connected with the motor (6); the soilless culture device (3) comprises a shunt conduit (31), a stem protection device (32) and an oxygen supply root prevention pad device (33), wherein the shunt conduit (31) is connected with the side surface of the lower end of the stem protection device (32), and the oxygen supply root prevention pad device (33) is arranged below the stem protection device (32) and is connected with the lower end of the stem protection device (32); the shunt catheter (31) comprises a stem flow supply hole (3101), a shunt (3102) and a root system flow supply hole (3103), wherein the stem flow supply hole (3101) is arranged above the shunt (3102), and the root system flow supply hole (3103) is arranged below the shunt (3102); the stem protection device (32) comprises a fixing plate main body (3201), a nutrient solution guide pipe (3202), a positioning ring (3203), a spray head (3204) and a fixing plate moving device (3205), wherein the spray head (3204) is provided with the inner sides of the positioning rings (3203) which are distributed in an annular shape at equal intervals, and the nutrient solution guide pipe (3202) is embedded in the fixing plate main body (3201) and connected with the positioning rings (3203); the oxygen supply root prevention pad device (33) comprises an oxygen supply conduit (3301), a rotator (3302), a sliding guide pillar (3303), an oxygen injection device (3304) and an arc-shaped top end (3305), wherein the oxygen supply conduit (4) is installed below the oxygen supply conduit (3301) and is communicated with the oxygen supply conduit (3301), the rotator (3302) is arranged below the sliding guide pillar (3303) and is in sliding connection with the lower surface of the sliding guide pillar (3303), the sliding guide pillar (3303) is connected with the oxygen injection device (3304), and the oxygen injection device (3304) is embedded in the middle upper part of the arc-shaped top end (3305); the oxygen injection device (3304) comprises a rubber sealing block (a), an air bag (b) and a moving plate (c), wherein the air bag (b) is arranged below the rubber sealing block (a), the upper end of the air bag (b) is embedded in the rubber sealing block (a), and the air bag (b) is positioned on the moving plate (c) and is fixedly connected with the moving plate (c) in a welding mode; the sliding guide column (3303) is of a hollow guide column structure with an arc-shaped connector at the lower end of the main body, and a one-way valve is arranged inside the sliding guide column; the fixed plate moving device (3205) comprises a drainage pipeline (320501), a sound wave diffuser (320502), a vibration membrane (320503), an air cavity (320504), an elastic element (320505), a permanent magnet (320506), a dielectric medium (320507) and an electromagnet (320508), the upper end of the drainage pipeline (320501) is embedded in the fixing plate main body (3201) and is connected with the nutrient solution guide pipe (3202), the sound wave diffuser (320502) is arranged on the outer surface of the drainage pipeline (320501) and is in fit and through connection with the drainage pipeline (320501), the outer surface of the acoustic wave diffuser (320502) is in abutment with the outer surface of the diaphragm (320503), the elastic element (320505) is welded with the upper surface of the fixing plate main body (3201) in an electric welding mode, the permanent magnet (320506) is provided with two symmetrical parts which are arranged at two sides of the elastic element (320505), the dielectric (320507) is disposed below the electromagnet (320508) and is electrically connected thereto.

2. The device for soilless culture of vegetable as claimed in claim 1, wherein the device for soilless culture of vegetable comprises: the motor (6) is started to guide the nutrient solution in the nutrient solution tank (5) into the soilless culture device (3) to form nutrient solution circulation, the nutrient solution is divided by the shunt (3102) in the shunt conduit (31), a part of the nutrient solution flows into the stem protection device (32), the nutrient solution flows into the nutrient solution guide pipe (3202) through the drainage conduit (320501), the tuber of the Chinese chives is sprayed by the spray head (3204), the spray head (3204) is provided with a plurality of annular equally-spaced rings which are distributed on the inner side of the positioning ring (3203) to more comprehensively avoid dead angles, when the nutrient solution passes through the drainage conduit (320501), the arc structure of the sound wave diffuser (320502) can better play a sound wave vibration effect, so that the vibration membrane (320503) is driven to vibrate to squeeze the air in the air cavity (320504), and the dielectric medium (320507) is squeezed to form a current guide electromagnet (320508) to absorb the fixing plate body (3201) to move downwards, because vibrating diaphragm (320503) vibrates and reciprocates thereby dielectric medium (320507) can form discontinuous electric current, thereby make fixed plate main part (3201) up-and-down reciprocating motion avoid atomising head (3204) to the rhizome of leek the same place long-term spraying lead to the rhizome excessive moisture influence growth, in another part nutrient solution flow direction oxygen suppliment prevents root pad device (33), nutrient solution promoted the rotator (3302) and rotates and promote slip guide pillar (3303) rebound, thereby movable plate (c) rebound extrusion gasbag (b) through check valve (b1) restriction air current direction to gasbag (b) flow, and rubber seal piece (a) is equipped with two and connect through the draw-in groove mode and avoid the nutrient solution backward flow, arc top (3305) play the effect of dispersed root system through its circular arc surface and avoid the root system to form the root pad and make the lack of water plant.