Plant planting device capable of regulating and controlling soil moisture

Abstract

The utility model discloses a plant planting device capable of regulating and controlling soil moisture, which comprises a base platform, round holes are formed in the base platform side by side, flowerpots are placed in the round holes, a main water conveying pipeline is arranged between the two rows of flowerpots, a water tank is arranged on the side face of the base platform, and the bottom of the water tank is communicated with the main water conveying pipeline. The lower end of the main water conveying pipeline is connected with the base station through a supporting frame, the side face of the main water conveying pipeline is communicated with a plurality of branch water outlet pipelines corresponding to the flowerpots, the water outlet ends of the branch water outlet pipelines are communicated with annular weeping pipes, the annular weeping pipes are located over the flowerpots, and electric water valves are arranged on the branch water outlet pipelines. An outgoing line of the humidity sensor penetrates through a vent hole in the bottom of the flowerpot and then is connected with the signal input end of the PLC, and the signal output end of the PLC is electrically connected with the electric water valve. The device is simple and convenient to operate, can improve the water content control precision, and avoids inaccurate experimental results of water stress research.

Description

Technical Field

[0001] The utility model relates to a plant planting device capable of regulating soil moisture, belonging to the technical field of laboratory plant planting. Background Art

[0002] Water is not only an important factor for plant survival, but also an important component of plants, and plays a vital regulatory role in plant growth and development. Water stress is a type of environmental stress suffered by plants. When plants grow in an adverse external environment for a long time, there is too much or no water in the plant body, which has an adverse effect on plant growth and causes pressure on plant survival. Existing laboratory studies on water stress of herbaceous plants generally plant the herbaceous plants in pots, and use a combination of manual watering and overall weighing of the pots to control and regulate the water in the pots. The above method has the following defects: manual watering and weighing methods have the defect of being cumbersome to operate. In addition, the precision of controlling the moisture content of the soil in the pot by weighing is not high, which will cause inaccurate experimental results of water stress research. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a plant planting device that can regulate soil moisture, which is easy to operate and can improve the accuracy of controlling moisture content, thereby avoiding inaccurate experimental results of water stress research.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A plant planting device capable of regulating soil moisture comprises a base, wherein circular holes are arranged side by side on the base, flower pots are placed in the circular holes, a main water pipeline is arranged between two rows of the flower pots, a water tank is arranged on the side of the base, the bottom of the water tank is connected to the main water pipeline, the lower end of the main water pipeline is connected to the base through a support frame, a plurality of branch water pipelines corresponding to the flower pots are connected to the side of the main water pipeline, the outlet end of the branch water pipeline is connected to an annular drip pipe, the annular drip pipe is located directly above the flower pot, an electric water valve is arranged on the branch water pipeline, a humidity sensor is arranged in the flower pot, a lead wire of the humidity sensor passes through the air vent at the bottom of the flower pot and is connected to the signal input end of a PLC controller, and the signal output end of the PLC controller is electrically connected to the electric water valve.

[0006] A water receiving plate is arranged below the base, and a water outlet hole is arranged below the water receiving plate.

[0007] The number of the flower pots is N, wherein N is an integer greater than or equal to 4, and the flower pots are symmetrically distributed along both sides of the main water supply pipeline.

[0008] The number of the flower pots is 6.

[0009] In the horizontal direction, the humidity sensor is located at the center of the flower pot.

[0010] The water tank is provided with a flip cover plate, and the material of the water tank is polycarbonate.

[0011] The beneficial effects of the utility model are as follows: the utility model provides a plant planting device that can regulate soil moisture, the water outlet end of the branch water pipe is connected to an annular drip pipe, the annular drip pipe is located directly above the flower pot, an electric water valve is arranged on the branch water pipe, a humidity sensor is arranged in the flower pot, the lead wire of the humidity sensor passes through the air vent at the bottom of the flower pot and is connected to the signal input end of the PLC controller, the signal output end of the PLC controller is electrically connected to the electric water valve, the PLC controller parameters are set according to the requirements of different soil moisture experiments to control the opening and closing of the electric water valve, so that the soil moisture in the flower pot reaches the set value, and different water stress research experiments are carried out, without manual watering and weighing, and the operation is simple, and the detection and control are carried out by the cooperation of the humidity sensor and the PLC controller, which can improve the accuracy of controlling the moisture content and avoid inaccurate results of the water stress research experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the top view of a plant planting device capable of regulating soil moisture in the utility model:

[0013] Figure 2 This is a schematic diagram of the humidity sensor position structure in the utility model:

[0014] Figure 3 It is a front view structural schematic diagram of a plant planting device capable of regulating soil moisture according to the utility model.

[0015] The reference numerals in the figure are as follows: 1-base; 2-water tank; 3-flower pot; 4-annular drip pipe; 5-water pipeline; 6-electric water valve; 7-humidity sensor; 8-PLC controller; 9-water receiving plate; 10-main water pipeline; 11-support frame; 12-water outlet. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the protection scope of the present invention.

[0017] like Figures 1 to 3As shown, the utility model discloses a plant planting device capable of regulating soil moisture, comprising a base 1, circular holes are arranged side by side on the base 1, flower pots 3 are placed in the circular holes, and a main water supply pipeline 5 is arranged between two rows of flower pots 3. The number of flower pots 3 is N, where N is an integer greater than or equal to 4, and the flower pots 3 are symmetrically distributed along both sides of the main water supply pipeline 10. The number of flower pots 3 is selected according to the number of experimental groups of the actual stress experiment. In this embodiment, the number of flower pots 3 is 6, and the water stress of herbaceous plants under six different soil moisture contents can be studied.

[0018] A water tank 2 is provided on the side of the base 1, and the bottom of the water tank 2 is connected to the main water pipeline 10. The water tank 2 is used to supply water to the main water pipeline 10, and the end of the main water pipeline 10 away from the water tank 2 is a closed structure. The lower end of the main water pipeline 10 is connected to the base 1 through a support frame 11, and the lower end of the support frame 11 is detachable to facilitate the subsequent removal of the main water pipeline 10. A flip cover is provided on the water tank 2. When no water is added, the flip cover is used to cover the upper opening of the water tank 2. The material of the water tank 2 is polycarbonate, which is convenient for observing the water level in the water tank 2.

[0019] The side of the main water supply pipeline 10 is connected with a plurality of branch water pipes 5 corresponding to the flower pots 3, and the outlet end of the branch water pipe 5 is connected with an annular drip pipe 4, which is located directly above the flower pot 3. The utility model uses the annular drip pipe 4 to water the flower pot, and the water flows out from the small holes on the annular drip pipe 4 to the flower pot 3 to prevent the water flow from washing the soil too fast. The branch water pipe 5 is provided with an electric water valve 6 for controlling the opening and closing of the annular drip pipe 4.

[0020] A humidity sensor 7 is arranged in the flower pot 3, and in the horizontal direction, the humidity sensor 8 is located at the center of the flower pot 3. The lead wire of the humidity sensor 7 passes through the air vent at the bottom of the flower pot 3 and is connected to the signal input end of the PLC controller 8, and the signal output end of the PLC controller 8 is electrically connected to the electric water valve 6. The utility model controls the switch of the electric water valve 6 by monitoring the signal of the humidity sensor 7 by the PLC controller 8. A water receiving plate 9 is arranged under the base 1, and a water outlet 12 is arranged under the water receiving plate 9 for receiving the water from the flower pot 3 that is not absorbed by the soil.

[0021] The working process of the utility model is as follows: the parameters of the PLC controller 8 are set according to different soil moisture experimental requirements, water is poured into the water tank 2, the water flows from the bottom of the water tank 2 into the main water supply pipe 10, the humidity sensor 7 works normally, when it is detected that the soil moisture does not reach the set value, the PLC controller 8 controls the electric water valve 6 to be in an open state, and the annular drip pipe 4 drips water to add water to the soil, and when it is detected that the soil moisture reaches the set value, the electric water valve 6 is closed, and the annular drip pipe 4 stops dripping water.

[0022] The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plant planting device capable of regulating soil moisture, Features: The invention comprises a base (1), wherein circular holes are arranged side by side on the base (1), wherein flower pots (3) are placed in the circular holes, and a main water supply pipeline (10) is arranged between two rows of the flower pots (3). A water tank (2) is arranged on the side of the base (1), and the bottom of the water tank (2) is connected to the main water supply pipeline (10). The lower end of the main water supply pipeline (10) is connected to the base (1) via a support frame (11), and the side of the main water supply pipeline (10) is connected to a plurality of branch water pipes corresponding to the flower pots (3). A water outlet pipe (5) is connected to the water outlet end of the branch water outlet pipe (5) with an annular drip pipe (4), the annular drip pipe (4) is located directly above the flower pot (3), an electric water valve (6) is arranged on the branch water outlet pipe (5), a humidity sensor (7) is arranged in the flower pot (3), a lead wire of the humidity sensor (7) passes through an air hole at the bottom of the flower pot (3) and is connected to a signal input end of a PLC controller (8), and a signal output end of the PLC controller (8) is electrically connected to the electric water valve (6).

2. A plant planting device capable of regulating soil moisture according to claim 1, Features: A water receiving plate (9) is provided below the base (1), and a water outlet hole (12) is provided below the water receiving plate (9).

3. A plant planting device capable of regulating soil moisture according to claim 1, Features: The number of the flower pots (3) is N, where N is an integer greater than or equal to 4, and the flower pots (3) are symmetrically distributed along both sides of the main water supply pipeline (10).

4. A plant planting device capable of regulating soil moisture according to claim 3, Features: The number of the flower pots (3) is 6.

5. A plant planting device capable of regulating soil moisture according to claim 1, Features: In the horizontal direction, the humidity sensor (7) is located at the center of the flower pot (3).

6. A plant planting device capable of regulating soil moisture according to claim 1, Features: The water tank (2) is provided with a flip cover plate, and the water tank (2) is made of polycarbonate.

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