CN112715333A

CN112715333A - Water-saving irrigation device

Info

Publication number: CN112715333A
Application number: CN202011561473.0A
Authority: CN
Inventors: 毕庆生
Original assignee: Henan Agricultural University
Current assignee: Henan Agricultural University
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-04-30
Anticipated expiration: 2040-12-25
Also published as: CN112715333B

Abstract

The application relates to a water-saving irrigation device, its characterized in that: the irrigation pipeline comprises a plurality of sections of outer pipes, the outer pipes of all the sections are firmly and hermetically connected through a water outlet assembly, the water outlet assembly comprises an inner shell, the inner shell is shaped like a water cup, one end of the inner shell is provided with a wall, the other end of the inner shell is open, a pressure relief plug B is arranged on the wall, at least one circle of positioning concave pits are arranged around the outer periphery of the inner shell, rolling bodies are limited in the concave pits, a circle of water guide grooves are also arranged on the outer periphery of the inner shell, and the pressure relief plugs A for communicating the inner wall and the outer wall of the; the water outlet assembly also comprises an outer shell sleeved outside the inner shell, and the inner wall of the outer shell is provided with a raceway corresponding to the rolling body and is limited by the rolling body to rotate outside the inner shell; a water leakage hole is arranged on the shell wall corresponding to the water guide groove, and a counterweight is arranged on the circumference of the water leakage hole; after the pipeline is buried in the soil, the outer pipe is drawn out, and only the other part is left for irrigation and water supply. This application has realized that the apopore of the pipe of driping irrigation after the installation is always in the below and down, and the water resource waste problem that is forced to increase water pressure that waterproof earth invades and causes.

Description

Water-saving irrigation device

Technical Field

The application relates to agricultural and horticultural irrigation equipment, in particular to a water-saving irrigation device.

Background

Drip irrigation is an important water-saving means in agricultural production irrigation operation. In the current irrigation of driping irrigation, the water pipe pipeline is buried in soil, water is applied to the soil quantitatively through water holes or water droppers, the plant root system is directly supplied, the loss caused by volatilization is reduced, and the method is a main water-saving technology.

Drip irrigation equipment among the prior art because with soil and plant roots contact closely, is plugged up the delivery port by earth easily when going out water to the plant grows according to water, bores into mouth of a river department easily and influences equipment operation.

Meanwhile, after the water outlet is blocked, the water pressure must be increased, so that the actual water supply quantity has larger deviation from the pre-calculated value, and waste is caused.

Some improved drip irrigation devices have appeared, as CN107624616B discloses an irrigation pipe, comprising a pipe body including a main pipe body provided with a main flow passage and a secondary pipe body provided with a secondary flow passage, the secondary pipe body communicating with the main pipe body; the method is characterized in that: the irrigation unit comprises an irrigation cavity, thin pipelines, a buffer cavity and a communicating part, the buffer cavity is positioned at the left side and the right side of the irrigation cavity and symmetrically arranged, the thin pipelines are arranged in a zigzag manner and communicated with the irrigation cavity and the buffer cavity, and the buffer cavity is connected with the communicating part through the communicating part and communicated with the main runner; a copper sheet is arranged in the buffer cavity; the irrigation cavity is provided with an outer water outlet exposed out of the pipe body. But the structure in the tube is complex, and the problem of waste caused by increasing the water pressure if one part is blocked still exists.

For another example, CN106718670A is a method for irrigation using buried irrigation pipe, comprising: step 1, providing a buried irrigation pipe, wherein an air bag is arranged in a pipe body of the buried irrigation pipe; step 2, burying the buried irrigation pipe into soil of a farmland; during irrigation, the valve on the air pipe is opened, the air bag is deflated, the water pipe is communicated with an external water source, and water enters the water flow channel through the water pipe and the water pipe joint and finally flows out of the water outlet hole on the pipe body; when the irrigation is not carried out, the water source is cut off, the air pipe is communicated with the air charging device, the valve on the air pipe is opened, the air charging device charges air into the air bag through the air pipe and the air pipe connector, the air bag is expanded to be attached to the inner wall of the pipe body and seal the water outlet hole, and then the valve is closed. According to the scheme, a certain anti-blocking function is realized, but each node needs an electronic element to be higher in control cost, and the problem that the water outlet is damaged by a plant root system cannot be solved.

Disclosure of Invention

Problem (A)

To the above prior art, the present application is directed to the following technical problems:

1. preventing the irrigation water pipe from being blocked by soil;

2. the water pressure of the outlet water of the whole pipeline is uniform, and the waste of water caused by pressure is prevented;

3. prevent the water outlet structure from being damaged by the plant root system.

(II) technical scheme

In order to solve the technical problem, the scheme provided by the application is as follows: a water-saving irrigation device is characterized in that: the irrigation pipeline comprises a plurality of sections of outer pipes, the outer pipes of all the sections are firmly and hermetically connected through a water outlet assembly, the water outlet assembly comprises an inner shell, the inner shell is shaped like a water cup, one end of the inner shell is provided with a wall, the other end of the inner shell is open, a pressure relief plug B is arranged on the wall, at least one circle of positioning concave pits are arranged around the outer periphery of the inner shell, rolling bodies are limited in the concave pits, a circle of water guide grooves are also arranged on the outer periphery of the inner shell, and the pressure relief plugs A for communicating the inner wall and the outer wall of the;

the water outlet assembly also comprises an outer shell sleeved outside the inner shell, and the inner wall of the outer shell is provided with a raceway corresponding to the rolling body and is limited by the rolling body to rotate outside the inner shell; a water leakage hole is arranged on the shell wall corresponding to the water guide groove, and a counterweight is arranged on the circumference of the water leakage hole;

after the pipeline is buried in the soil, the outer pipe is drawn out, and only the other part is left for irrigation and water supply.

Further, the inner wall of the outer tube is coated with a lubricant.

Further, the counterweight is made of heavy metal materials.

Further, the pressure relief plugs a and B are rubber plugs with central straight holes, and the straight holes open to the maximum hole diameter when a certain pressure is applied, so as to obtain the maximum flow, and the pressure at this time is called as the opening pressure.

Further, the opening pressure Pa of the pressure relief plug a is greater than the opening pressure Pb of the pressure relief plug B.

Further, the through hole diameter of the pressure relief plug A is smaller than that of the pressure relief plug B.

Furthermore, the inner shell and the inner tube are connected in a sealing mode through pipe threads and the raw material belt.

Further, the inner shell and the inner pipe are welded by hot melting or integrally formed.

(III) advantageous effects

This application has mainly realized the apopore of the pipe of driping irrigation after the installation always in the below and down, and waterproof earth invasion causes is forced to increase hydraulic water waste problem, adopts the heavy metal counter weight simultaneously, has simplified the structure, has reduced the component quantity and has played the technological effect of arranging the plant roots destruction.

Drawings

FIG. 1 is a schematic partial cross-sectional view of the present application;

FIG. 2 is a front cross-sectional view of the water outlet assembly of the present application;

FIG. 3 is a semi-sectional isometric view of the apparatus of the present application with the outer sleeve removed;

fig. 4 is a partial enlarged view of the structure of fig. 3 at reference numeral 8/9.

Reference numerals

1. Inner pipe

2. Outer sleeve

3. Inner shell

4. Rolling body

5. Outer casing

6. Pressure relief plug A

7. Pressure relief plug B

8. Counterweight

9. Water leakage mouth

10. Water chute

Detailed Description

The present invention will be further described with reference to the following examples.

As shown in fig. 1, a water-saving irrigation device according to the present application is characterized in that: the irrigation pipeline comprises a plurality of sections of outer pipes 2, the outer pipes 2 are firmly and hermetically connected through water outlet assemblies, each section of outer pipe 2 comprises an inner shell 3, each inner shell 3 is shaped like a water cup, one end of each inner shell is provided with a wall, the other end of each inner shell is provided with an opening, a pressure relief plug B (7) is arranged on each wall, at least one circle of positioning pits are arranged on the periphery of each inner shell 3 in a surrounding mode, rolling bodies 4 are limited in the pits, a circle of water guide grooves 10 are also arranged on the periphery of each inner shell 3, and pressure relief plugs A (6) for communicating the inner wall and the;

the water outlet assembly also comprises an outer shell 5 sleeved outside the inner shell 3, and the inner wall of the outer shell 5 is provided with a roller path corresponding to the rolling body 4, is limited by the rolling body 4 and can rotate outside the inner shell 3; a water leakage hole 9 is formed in the wall of the shell 5 at a position corresponding to the water guide groove, and a counterweight 8 is arranged on the circumference of the water leakage hole 9;

after the pipeline is buried in the soil, the outer pipe 2 is drawn out, and only the other part is left for irrigation and water supply.

The key points of the scheme are as follows: after the inner pipe 1 is filled with water (neglecting the pressure relief plug A, B, it is regarded as a through hole), the water in the inner pipe can be discharged from the pressure relief plug a (6), and is guided through the water chute, and because the outer shell 5 can rotate outside the inner shell, under the action of the counterweight body 8, the water leakage hole 9 is sunk to the bottom, the water flowing down from the water chute can be led into the water leakage hole 9, but at this time, the outer wall also wraps the outer pipe 2, and the water can not flow into the soil.

At this time, the outer tube 2 is withdrawn and the rest remains. The water in the water leakage hole can be dropped into the soil. At this time, the water leakage holes are right below the water pipe, so that the water leakage holes cannot be invaded by soil, and all the water leakage holes are located below the water pipe. The covering soil can be compacted at this time, because the position of the water leakage hole is downward, because all the movable parts can not move any more, the covering soil can also keep the state of the adjusted movable parts.

In order to facilitate the extraction of the outer tube 2,

further, the inner wall of the outer tube 2 is coated with a lubricant.

Further, the counterweight is made of heavy metal materials.

The inner shell and the outer shell can be made of plastic materials, the counterweight is made of heavy metal materials, the weight is heavier, and the inner shell and the outer shell fall down to enable the hole on the outer shell to face downwards all the time; on the other hand, the heavy metal material is combined with water and oxygen to generate trace compounds, so that the plant root system cannot grow nearby, and the effect of draining the root system is achieved. Similar ideas are already applied in patent CN107624616B, but the patent is limited to use copper sheets, and the specially-arranged elements cannot be applied to habits of various crops, and in this scheme, heavy metals are used as weights, and no special elements need to be arranged, so the structure is simpler and more reliable.

The working principle here is: the water is firstly fed into an upstream water inlet (the right side in the attached figure 1), the water is filled into an inner shell 3 of one water outlet assembly and then is accumulated, the pressure P is increased after the water is filled, when the pressure P is greater than Pb, a pressure relief plug B is opened, the following pipelines and the water outlet assembly are continuously filled until all the pipelines are filled with water, the pressure P is continuously increased at the moment, and when the pressure P is greater than Pa, a pressure relief plug A is opened and water outlet (irrigation) is started. Because the pore diameter of the pressure relief plug A is small, the pressure of the downstream water outlet assembly is not influenced, the pressure of the whole pipeline is uniform, and the water outlet quantity is kept similar.

Further, the inner shell 3 and the inner tube 1 are connected in a sealing mode through tube threads and a raw material belt.

Further, the inner shell 3 and the inner tube 1 are welded by hot melting or integrally formed.

Further, the rolling bodies are balls, rollers or rolling needles.

In addition, the pressure relief plug can also use a relief valve of the existing specification.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A water-saving irrigation device is characterized in that: the irrigation pipeline comprises a plurality of sections of outer pipes, the outer pipes of all the sections are firmly and hermetically connected through a water outlet assembly, the water outlet assembly comprises an inner shell, the inner shell is shaped like a water cup, one end of the inner shell is provided with a wall, the other end of the inner shell is open, a pressure relief plug B is arranged on the wall, at least one circle of positioning concave pits are arranged around the outer periphery of the inner shell, rolling bodies are limited in the concave pits, a circle of water guide grooves are also arranged on the outer periphery of the inner shell, and the pressure relief plugs A for communicating the inner wall and the outer wall of the;

2. The water-saving irrigation device as claimed in claim 1, wherein: the inner wall of the outer tube is coated with a lubricant.

3. The water-saving irrigation device as claimed in claim 1, wherein: the counterweight is made of heavy metal materials.

4. The water-saving irrigation device as claimed in claim 1, wherein: the pressure relief plugs A and B are rubber plugs with central straight holes, the straight holes are opened to the maximum aperture when the pressure relief plugs A and B are under specific pressure, the maximum flow is obtained, and the pressure at the moment is called as opening pressure.

5. The water-saving irrigation device as claimed in claim 4, wherein: the opening pressure Pa of the pressure relief plug A is greater than the opening pressure Pb of the pressure relief plug B.

6. The water-saving irrigation device as claimed in claim 1, wherein: the straight-through aperture of the pressure relief plug A is smaller than that of the pressure relief plug B.

7. The water-saving irrigation device as claimed in claim 1, wherein: the inner shell and the inner tube are connected in a sealing mode through pipe threads and a raw material belt.

8. The water-saving irrigation device as claimed in claim 1, wherein: the inner shell and the inner pipe are welded by hot melting or are integrally formed.