CN201614581U - A water level control pipe for farmland drainage - Google Patents

Abstract

The utility model relates to a water level control pipe for farmland drainage. The top of the pipe section is located inside the tubular shell with a pull rod, the tubular shell at the flexible telescopic pipe section is provided with a water outlet, and the tubular shell between the flexible telescopic pipe section and the bottom cover is provided with a water inlet. The utility model has the advantages of simple structure, low manufacturing cost, convenient operation management and maintenance.

Description

A water level control pipe for farmland drainage

technical field

The utility model relates to a device for controlling the underground water level of farmland, in particular to a control pipe for the water level of farmland drainage.

Background technique

Controlled drainage is a new modern farmland water management technology. Its purpose is to control the groundwater depth of the whole growth period of the plant at a certain value. Through drainage management, the burial concentration of groundwater in different growth stages of plants is different, so as to effectively prevent and control agricultural non-point source pollution, increase crop yield, prevent and control soil salinization, and efficiently and rationally use and manage water resources. Controlled drainage technology has not been widely used in China, mainly because the controlled drainage equipment is relatively backward, it is not economical, and it is not very convenient to use.

Utility model content

The purpose of the utility model is to solve the above problems and provide a farmland drainage water level control pipe with simple structure, low manufacturing cost, convenient operation management and maintenance.

The technical solution adopted by the utility model to solve the problems of the technologies described above is:

It includes a tubular shell, with a top cover on the top of the tubular shell, a bottom cover on the bottom of the tubular shell, a flexible telescopic pipe section in the middle of the tubular shell, and a pull rod on the top of the flexible telescopic pipe section inside the tubular shell. A water outlet is provided on the tubular shell at the pipe section, and a water inlet is provided on the tubular shell between the flexible telescopic pipe section and the bottom cover.

A joint is provided between the above-mentioned flexible telescopic pipe section and the tubular shell at the bottom thereof.

Above-mentioned pull bar is provided with scale.

Compared with the prior art, the utility model has achieved the following technical effects:

1. This utility model has a simple structure. By pulling the pull rod to control the change of the outlet position of the telescopic hose, the underground pipe is controlled to discharge groundwater, effectively achieving the purpose of controlling the groundwater level;

2. By designing a scale on the pull rod, some reference values are given for different growth periods of different crops, which is convenient for users to use.

Description of drawings

Fig. 1 is a sectional view of the utility model.

Among them: 1-tie rod, 2-top cover, 3-flexible telescopic pipe section, 4-water outlet, 5-joint, 6-water inlet, 7-bottom cover.

Detailed ways

Further illustrate the embodiment of the present utility model below in conjunction with accompanying drawing.

Example 1

Referring to Fig. 1 , a pipe for controlling the water level of farmland drainage, which includes a tubular shell, a top cover 2 is provided at the top of the tubular shell, a bottom cover 7 is provided at the bottom of the tubular shell, and a flexible telescopic pipe section 3 is provided in the middle of the tubular shell , the top of the flexible telescopic pipe section is located inside the tubular shell with a pull rod 1 designed with a scale, the tubular shell at the flexible telescopic pipe section is provided with a water outlet 4, and the tubular shell between the flexible telescopic pipe section and the bottom cover is set. There is water inlet 6. A joint 5 is provided between the flexible telescopic pipe section and the tubular shell at its bottom. The diameter of the tubular shell can generally be 10-15cm, so the device occupies a small area. The water inlet interface is connected with the hidden pipe laid in the original field, and only needs to be buried in the ground, which is convenient for installation.

The utility model is buried in the field at the exit of the concealed pipe, and connected with the exit of the concealed drainage pipe. The water discharged from the concealed drainage pipe enters the lower part of the tubular shell, and then enters the telescopic pipe. The outlet position of the telescopic pipe is changed by the pull rod. The field water level will be controlled, the field water volume and field drainage will be controlled.

When plants are in the seedling stage, the amount of evapotranspiration is small, the water demand of the crops is small, the root system of the crops is also very short, the water level of the groundwater can be kept at a relatively shallow depth, the roots of the crops will not be soaked, and the crops will not be reduced. And The moisture in the field is maintained for the subsequent growth period of plants, and the high groundwater level is controlled. It can also prevent the loss of fertilizer in the soil moisture, improve the utilization rate of fertilizer, and reduce the non-point source pollution caused by farmland drainage. The minimum groundwater burial depth required for the seedling stage of different crops is different and determined according to the length of the root system of the crop. At this time, the user only needs to pull the pull rod to make the outlet of the telescopic pipe higher, so that the requirement of controlling the groundwater level can be met. In the subsequent growth period, with the growth of the root system of the crops, it is necessary to ensure that the roots of the crops are not soaked, and the required groundwater burial concentration is increased, and the outlet position of the telescopic tube is correspondingly reduced. In the later stage of crop growth, waterlogging has little effect on crops. Therefore, the buried depth of groundwater can be reduced to a certain extent.

The scope of protection of the utility model is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and deformations to the utility model without departing from the scope and spirit of the utility model. If these changes and deformations fall within the scope of the claims of the utility model and their equivalent technologies, the intent of the utility model is to include these changes and deformations.

Claims (3)

1. water level control pipe for farmland subsurface water control, it comprises tubular outer casing, it is characterized in that: the tubular outer casing top is provided with top cover (2), the tubular outer casing bottom is provided with bottom (7), be provided with flexible telescopic tube section (3) in the middle of the tubular outer casing, flexible telescopic tube section top is positioned at tubular outer casing inside and is provided with pull bar (1), and the tubular outer casing at flexible telescopic tube section place is provided with delivery port (4), and the tubular outer casing between flexible telescopic tube section and the bottom is provided with water inlet (6).

2. water level control pipe for farmland subsurface water control according to claim 1 is characterized in that: be provided with joint (5) between the tubular outer casing of described flexible telescopic tube section and its bottom.

3. water level control pipe for farmland subsurface water control according to claim 1 and 2 is characterized in that: described pull bar is provided with scale.

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