CN108040701A - Suitable for the automatic rainproof cover of tall and big crop - Google Patents

Abstract

The invention provides an automatic rainproof cover suitable for tall crops, which comprises: a double-layer tube in a helical structure, which spirals into a frustum-shaped cylindrical structure as a whole, and includes a hard tube and a thin film tube, and the thin film tube is airtight Sleeved on the outside of the hard tube, the extending direction of the hard tube and the thin film tube are consistent, and the hard tube is provided with a plurality of through holes; the rain sensor is used to detect rainfall and send a rainfall signal; Machine, connected with the hard pipe, used to deliver airflow to the hard pipe; controller, connected with the rain-sensing sensor and blower, after the controller receives the rainfall signal sent by the rain-sensing sensor, The air blower is started to deliver airflow to the hard tube, and the thin film tubes are bulged and close to each other, so that the double-layer tubes form a sealed structure to prevent rain from passing through. The invention does not need to move the animal cultivation container, and can realize the rain shelter simply and quickly.

Description

Automatic rain cover for tall crops

technical field

The invention relates to the technical field of crop science research, in particular to an automatic rainproof cover suitable for tall crops.

Background technique

Barrel/pot experiment is a common means of crop science research, in the barrel/pot experiment often need sheltered rainfall. The conventional methods are as follows:

First, regardless of whether it is barreled or potted, the cultivation containers (barrels, pots) used can be moved. Therefore, it is possible to manually move the rain shelter before the precipitation occurs, such as moving the cultivation container to the bottom of the greenhouse or indoors. The defect of this method is that it needs to consume more manpower, especially for larger crops such as corn, cotton, sorghum, because its cultivation container is large and heavy, it is very heavy to move, and it is often necessary to move the roots and crowns of the crops. Layers will generate large disturbances, which will affect the test results.

Second, use rainproof sheds to shelter from rainfall. This method requires the canopy to be completely covered by the canopy, which affects the microenvironment of the canopy such as canopy light, temperature, and humidity, and also affects the physiological and ecological process of the crop and affects the experimental results.

In addition, for the cultivation containers of crops with small plants, the volume is small and easy to move. Although the above-mentioned problems exist, they are not obvious, but for crops with large plants, the above-mentioned problems are more prominent.

Therefore, it is necessary to develop a rain-shielding scheme suitable for the cultivation containers of tall crops such as corn, cotton, sorghum, etc., which can achieve rain protection without significantly disturbing the microenvironment of the plant canopy.

Contents of the invention

The object of the present invention is to provide an automatic rainproof cover suitable for tall crops, so as to solve the problem that the crop cultivation containers in the prior art cannot automatically shield the rain.

In order to solve the above problems, the present invention provides the following technical solutions:

An automatic rainproof cover suitable for tall crops, which includes: double-layer pipes, in a spiral structure, spiraled into a cylindrical structure in the shape of a frustum as a whole, and includes a hard pipe and a thin film pipe, and the thin film pipe is tightly sleeved on the On the outside of the hard tube, the extending directions of the hard tube and the thin film tube are consistent, and the hard tube is provided with a plurality of through holes to communicate with the thin film tube; the rain sensor is used to detect rainfall and send a rainfall signal; An air machine, connected with the hard pipe, is used to deliver airflow to the hard pipe, and inflate the film pipe; a controller, connected with the rain-sensing sensor and the air blower, when the controller receives the rain-sensing sensor After the rain signal is sent, the air blower is started to deliver airflow to the hard tube, and the thin film tubes are bulged and close to each other, so that the double-layer tubes form a sealed structure to prevent rain from passing through.

Preferably, it also includes: a pressure sensor connected to the inside of the hard tube or thin film tube to detect the pressure inside the hard tube or thin film tube, and connected to the controller at the same time to send a pressure signal to the controller .

Preferably, it also includes: also includes: an aspirator, connected with the hard pipe, used to extract the gas inside the double-layer pipe, and connected with the controller at the same time, when the rain stops, the controller controls The aspirator extracts the gas inside the double pipe.

Preferably, it further includes: an electromagnetic three-way valve, the outlet is connected to the hard pipe, the two inlets are respectively connected to the blower and the aspirator, and are electrically connected to the controller.

Preferably, the film tube is made of rubber.

It can be seen from the analysis that the double-layer pipe provided by the present invention is a truncated cone-shaped cylindrical structure. When the crop is large, it can be sleeved on the base of the crop (the lower part of the stem, near the bottom surface), and when it rains, it can be quickly inflated to the inside. , the film tube swells to form a structure similar to an umbrella, thereby preventing rainfall from falling into the crop cultivation container. When the rainfall is over, the film tube is no longer inflated, and the film tube shrinks and is attached to the hard tube. It can be seen that the present invention does not need to move the animal cultivation container, and can prevent rainfall from entering the cultivation container simply and quickly.

Description of drawings

Fig. 1 is a schematic structural diagram of the principle of an embodiment of the present invention;

Fig. 2 is a cross-sectional schematic diagram of a double-layer pipe according to an embodiment of the present invention (inner inflation);

Fig. 3 is the second schematic cross-sectional structure diagram of the double-layer tube of the embodiment of the present invention (the membrane tube collapses after inhalation).

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the embodiment of the present invention provides a kind of automatic rainproof cover that is applicable to tall crops, in order to describe this embodiment more clearly, Fig. 1 also shows the application scene of this embodiment: tall crops (corn , cotton, etc.) 100 grows in a cultivation container (barrel, pot, etc.) 200, and this embodiment is located above the cultivation container 200, and is sleeved on the base (the lower part of the stalk) 101 of the crop 100. The function of the embodiment of the present invention is to cover the top of the cultivation container 200 to prevent precipitation from falling on the soil below the crop 100, but it does not affect the illumination of the main body of the aboveground part of the crop, such as the illumination of micro-meteorological parameters such as temperature and humidity, so as to obtain more accurate crop monitoring. Specific parameter data such as water consumption and water demand.

As shown in Figure 1, Figure 2 and Figure 3, the embodiment of the present invention includes a double-layer pipe 3, a pressure sensor 4, an electromagnetic three-way valve 5, an air blower 6, an aspirator 7, a controller 8, and a rain sensor 9 .

Specifically, the double-layer pipe 3 is in a spiral structure, and the whole spirals into a cylindrical structure in the shape of a frustum of a cone. The reason why it is designed as a cylindrical structure is because the crops 100 need to pass through it. The reason for the truncated cone shape is that after the rainfall, raindrops can flow down naturally from top to bottom; in addition, the upper end is shrunk and thinner, which can wrap more tightly around the base 101 of the crop 100, basically preventing rainwater from falling onto the cultivation container 200.

As shown in Figures 2-3, the double-layer tube 3 includes a hard tube 1 and a thin film tube 2. The thin film tube 2 is hermetically sleeved outside the hard tube 1. The extension directions of the hard tube 1 and the thin film tube 2 are the same. When the tube 1 needs to be connected with the sensor and the blower, the hard tube 1 is basically located in the thin film tube 2 . The hard tube 1 includes a tube wall 11 on which a plurality of through holes 10 are formed. Inside the tube wall 11 is a cavity 12 , and the cavity 12 communicates with the inside of the thin film tube 2 through the through holes 10 . The hard tube 1 can be made of stainless steel (thinner, easy to bend) or a plastic material with stronger hardness, and the thin film tube 2 is a rubber material with better elasticity and aging resistance, preferably using medical grade rubber (antibacterial gloves, condoms, etc.).

The rain sensor 9 is used to detect rainfall, and sends a rainfall signal to the controller 8 electrically connected thereto for the controller 8 to make a judgment.

The air blower 6 is connected with the hard tube 1 and is used to deliver air flow to the hard tube 1 . Preferably, one end of the hard tube 1 extends out of the film tube 2 and is connected to the blower 6 . Of course, it is also possible to provide additional connecting pipes to be inserted into the double-layer pipes to connect the hard pipes. The blower 6 is also connected with the controller 8, and its operation and stop are controlled by the controller 8.

In use, after the controller 8 receives the rainfall signal sent by the rain sensor 9, the blower 6 is started to deliver airflow to the hard tube 1, and the airflow in the cavity 10 is input into the film tube 2 through the through hole 11, and the film tube 2 Bulge and close to each other, there is no gap between the upper and lower adjacent two-layer film tubes 2, so that the double-layer tube 3 forms a sealed rainproof cover structure, preventing rainfall from passing through and falling into the soil of the cultivation container 200.

In order to avoid excessive pressure in the thin film tube 2, safety valves, pressure relief valves, etc. can be set on the thin film tube 2 and on the exposed part of the hard tube 2.

In order to make the control of the present embodiment more efficient and stable, the present embodiment also includes a pressure sensor 4, which is internally connected with the hard tube 1 or the thin film tube 2 to detect the pressure inside the hard tube 1 or the thin film tube 3, and simultaneously communicates with the controller 8 Connect to send a pressure signal to the controller 8. Preferably, the other end of the hard tube 1 extends out of the thin film tube 2 and is connected with the pressure sensor 4 .

At the end of the rain, in order to enable the rapid ventilation of the crop 100 base 101, the present embodiment also includes an aspirator 7, which is also connected with the cavity 10 of the hard pipe 1, and is used to extract the gas inside the double-layer pipe 3, and at the same time communicate with the control 8 is electrically connected, and when the rainfall stopped, the controller 8 controlled the aspirator 7 to extract the gas inside the double-layer pipe 3 .

In order to simplify the structure of this embodiment and improve the accuracy of control, this embodiment includes an electromagnetic three-way valve 5, the outlet of which is connected to the hard pipe 1, and the two inlets are respectively connected to the air blower 6 and the aspirator 7. The controller 8 is electrically connected.

When this embodiment is in use, when rainfall occurs, the rain sensor 9 sends a rainfall signal to the controller 8, and the controller 8 starts the blower 6, and opens the connection between the blower 6, the electromagnetic three-way valve 5, and the hard pipe 1. Passage, film tube 2 bulges (Fig. 2), and double-layer pipe 3 forms a sealed rainproof cover, and rainwater flows down from the edge (the circular edge formed by the lower end of double-layer pipe 3 is greater than and lower than the cultivation container edge), and does not fall into the cultivation container in container 3.

When the pressure in the film tube 2 reaches the set value, the controller 8 controls the blower 6 to brake, and the electromagnetic three-way valve 5 is turned off. When the pressure decreased, the controller 8 started the blower 6 and the electromagnetic three-way valve 5 again.

When the rainfall ends (or after a period of time), the controller 8 stops the operation of the air blower 6, opens the passage between the aspirator 7, the electromagnetic three-way valve 5, and the hard pipe 1, and quickly takes away the air in the double pipe 3. Gas, the thin film tube 2 shrinks, dries up, and sticks to the outside of the hard tube 1 (as shown in FIG. 3 ), so as not to affect the ventilation and gas exchange of the base 101 .

In summary, the present invention can realize automatic rain protection without moving the crop cultivation container, so as to avoid adverse effects on crops (loose soil, damage to stems and leaves, etc.) caused by movement. In addition, the present invention is not only suitable for tall crops, but also can be used for taller forest tree experiments.

It can be known from common technical knowledge that the present invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Claims (5)

1. a kind of automatic rainproof cover suitable for tall and big crop, which is characterized in that including：

Bimetallic tube, helically structure integrally spiral into the tubular structure of taper type, and including hard tube, film tube, the film tube The outside of the hard tube is hermetically set in, the hard tube, the extending direction of film tube are consistent, and the hard tube is equipped with multiple logical Hole；

Sense Rain Sensor for detecting rainfall, and sends rainfall signal；

Air feeder is connected with the hard tube, for the hard tube delivery air；

Controller, the Sense Rain Sensor, air feeder connection, when the controller receives the rainfall of the Sense Rain Sensor transmission After signal, start the air feeder to the hard tube delivery air, the film tube is heaved and mutually in close proximity to so that institute It states bimetallic tube and forms sealing structure, rainfall is avoided to pass through.

2. the automatic rainproof cover according to claim 1 suitable for tall and big crop, which is characterized in that further include：Pressure passes Sensor, with being connected inside the hard tube or film tube, to detect the pressure inside the hard tube or film tube, at the same with it is described Controller connects, to send pressure signal to the controller.

3. the automatic rainproof cover according to claim 1 suitable for tall and big crop, which is characterized in that further include：It further includes： Lift pump is connected with the hard tube, for extracting the gas inside the bimetallic tube out, while is connected with the controller, is worked as drop When rain stops, the controller controls the lift pump to extract the gas inside the bimetallic tube out.

4. the automatic rainproof cover according to claim 3 suitable for tall and big crop, which is characterized in that further include：Electromagnetism three Port valve, outlet be connected with the hard tube, two entrances are connected respectively with the air feeder, lift pump, at the same with the controller Electrical connection.

5. the automatic rainproof cover according to claim 1 suitable for tall and big crop, which is characterized in that the film tube is rubber Glue material matter.