CN115918495A

CN115918495A - Farmland irrigation mechanism

Info

Publication number: CN115918495A
Application number: CN202211456652.7A
Authority: CN
Inventors: 楼淑君
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-04-07

Abstract

The invention relates to a farmland irrigation mechanism, which mainly comprises a water supply part and a water discharge gate, wherein the water supply part comprises an underdrain positioned below a roadbed, and the underdrain is communicated with the water discharge gate through a water pipe; the water-proof gate comprises a shell, the lower part of the shell is communicated with the blind ditch through a water pipe, a water outlet pipe is arranged above the shell, a supporting plate is arranged in the shell, a light material is arranged above the supporting plate to be made into an opening and closing plate, a water discharging pipe is arranged on the opening and closing plate, a water flow hole is formed in the supporting plate, the opening and closing plate is freely pressed on the supporting plate to completely cover the water flow hole, the water discharging pipe is sleeved in the water outlet pipe, the end part of the water discharging pipe is higher than the water outlet pipe, an inner pipe is arranged on the supporting plate, the diameter of the upper end of the inner pipe is larger than that of the water discharging pipe, and the lower end of the inner pipe extends into the water outlet pipe. Firstly, saying the open channel and changing into the hidden channel, practicing thrift the arable land and can make full use of as the part of road, secondly realize the automation to the farmland irrigation through setting up the automatic start-stop valve, need not open the breach again and block up the breach, it is laborsaving to save trouble, and can effectively avoid the farmland to leak.

Description

Farmland irrigation mechanism

Technical Field

The invention belongs to the technical field of water conservancy equipment, and particularly relates to a farmland irrigation mechanism.

Background

Hydraulic engineering plays an important role in the agricultural production process. Perfecting water conservancy facilities and improving irrigation efficiency are always key points of agricultural infrastructure construction. Because the most comparison of cultivated land of our country is dispersed, the mode moisturizing that the field irrigation generally adopted artifical excavation, the manual work blocks up the breach again after the moisturizing is accomplished, troublesome poeration, waste time and energy, or need the peasant household wait for the moisturizing to accomplish stifled at the field ground, or the peasant household goes busy other farming affairs in the moisturizing clearance, in case forget will appear two problems, or water is not too much, or just forget stifled breach, lead to the decline of ditch water level, what the farmland has also let out. In addition, most of the water channels of farmlands in China are open channels at the present stage, namely, the water channels are excavated on two sides of a farmland road, and cultivated land in China is few originally, so that the water channels occupy a lot of land, and the cultivated land per capita is less, which is not beneficial to the full utilization of the farmlands.

Disclosure of Invention

The invention aims to solve the technical problem of providing an agricultural irrigation mechanism which is simple and convenient to operate and occupies less cultivated land.

The technical scheme adopted by the invention for solving the technical problems is as follows: the farmland irrigation mechanism comprises a water supply part and a water discharge gate, wherein the water supply part comprises an underdrain positioned below a roadbed, and the underdrain is communicated with the water discharge gate through a water pipe; the water-proof gate comprises a shell, the lower part of the shell is communicated with the blind ditch through a water pipe, a water outlet pipe is arranged above the shell, a supporting plate is arranged in the shell, a light material is arranged above the supporting plate to be made into an opening and closing plate, a water discharging pipe is arranged on the opening and closing plate, a water flow hole is formed in the supporting plate, the opening and closing plate is freely pressed on the supporting plate to completely cover the water flow hole, the water discharging pipe is sleeved in the water outlet pipe, the end part of the water discharging pipe is higher than the water outlet pipe, an inner pipe is arranged on the supporting plate, the diameter of the upper end of the inner pipe is larger than that of the water discharging pipe, and the lower end of the inner pipe extends into the water outlet pipe.

The supporting plate is fixed on the inner wall of the shell, and a gap is reserved between the supporting plate and the bottom of the shell.

The opening and closing plate is integrated with the water drainage pipe, and the opening and closing plate is larger than the water flow hole in the supporting plate.

The shell in still be equipped with a plurality of limiting plates, the limiting plate is connected with the shell lateral wall, the limiting plate is the net board, open and close the board end and do not block in the clearance between the limiting plate and make and open and close the board and keep stable when reciprocating.

The opening and closing plate is provided with a sealing ring, and the sealing ring is positioned at a position of a gap between the aligned water outlet and the drain pipe.

The opening and closing plate is a hollow plastic plate or a foam plate.

Compared with the prior art, the invention has the following advantages: firstly change the open channel into the closed channel, practice thrift the arable land and can make full use of as the part of road, secondly realize the automation to the field irrigation through setting up the automatic start-stop valve, need not to open breach and stifled breach again, it is laborsaving to save trouble, and can effectively avoid the farmland to leak.

Drawings

FIG. 1 is a schematic view of the structure of an agricultural irrigation mechanism (for supplying water) according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of the structure of the farmland irrigation mechanism (water supply completed) according to the invention;

fig. 4 is a partially enlarged view of fig. 3.

Detailed Description

As shown in fig. 1-4, the farmland irrigation mechanism of the invention comprises a water supply part 1 and a water discharge gate 2, wherein the water supply part 1 comprises an underdrain 3 positioned below a roadbed, and the underdrain 3 is communicated with the water discharge gate 2 through a water pipe 4; the water drain gate 2 comprises a shell 21, the lower part of the shell 21 is communicated with the underground canal 3 through a water pipe 4, a water outlet pipe 5 is arranged above the shell 21, a supporting plate 6 is arranged in the shell 21, a light material opening and closing plate 7 is arranged above the supporting plate 6, a water drain pipe 8 is arranged on the opening and closing plate 7, a water flow hole 9 is arranged on the supporting plate 6, the opening and closing plate 7 is freely pressed on the supporting plate 6 and completely covers the water flow hole 9, the water drain pipe 8 is sleeved in the water outlet pipe 5, and the end part of the water drain pipe 8 is higher than the water outlet pipe 5; the supporting plate 6 is fixed on the inner wall of the shell 21, and a gap 10 is reserved between the supporting plate 6 and the bottom of the shell 21; an inner pipe 22 is arranged on the supporting plate 6, the diameter of the upper end of the inner pipe 22 is larger than that of the drain pipe 8, and the lower end of the inner pipe 22 extends into the water pipe 4.

The working principle is as follows: when needs irrigate, in the water in the underdrain can gush the floodgate, in the clearance 10 of backup pad 6 below was firstly washed to the rivers, rivers passed through rivers hole 9 and give and open and close board buoyancy, then, open and close the board and float under the buoyancy effect, rivers just can up gush into the farmland through outlet pipe 5, realize the irrigation to the farmland, because 8 tip of drain pipe are higher than outlet pipe 5, consequently, the water in farmland can not spill from 8 of drain pipe. In the irrigation process, if the water level in farmland and the underdrain in water level pressure the same mean irrigation completion, rivers in the gate that at this moment drains are motionless, the start-stop plate begins to descend under the dead weight effect, after most of farmland irrigation are accomplished, water pressure in the underdrain can descend, then the start-stop plate offsets with the backup pad under the combined action of dead weight and the water in farmland through the delivery port refluence rapidly and plugs up the rivers hole in the backup pad, then, the backup pad top just forms confined space in the shell, play the gate effect, irrigation is accomplished. When the water level of the farmland rises under the conditions of rain and the like, the water level exceeds a drain pipe when the water level exceeds a certain value (the value is set differently according to different crops), and excessive water in the farmland can be drained from the drain pipe, so that waterlogging is avoided, and the operation is automatically finished, so that time and labor are saved. The inner pipe 22 is arranged to guide the excessive water to be directly discharged into the water pipe 4 during water discharging, so that the phenomenon that the water is accumulated in the gap 10 due to large water quantity, and if the water is accumulated in the gap 10, the water can reversely impact the opening and closing plate 7 to cause instability of the opening and closing plate 7, and the possibility that the opening and closing plate is flushed to cause a large amount of water leakage is avoided.

In order to realize the purpose, the opening and closing plate 7 is integrated with the drain pipe 8, and the opening and closing plate 7 is larger than the water flow hole 9 on the supporting plate 6. The opening and closing plate and the drain pipe are made of gas materials, and the opening and closing plate and the drain pipe can not deform under the action of water pressure of the farmland. Of course, the opening and closing plate and the water discharging pipe can be in a split installation structure, and even can be made of different materials, so long as the purpose of the invention can be achieved on the basis of the principle of the invention.

In order to ensure that the opening and closing plate can accurately cover the water flow holes in the supporting plate to achieve a practical sealing effect, a plurality of limiting plates 11 are further arranged in the shell 21, the limiting plates 11 are connected with the side wall of the shell 21, the limiting plates 11 are grid plates, and the ends of the opening and closing plate 7 are not clamped in gaps among the limiting plates 11 so that the opening and closing plate 7 can be kept stable during up and down movement.

In a further improvement, a sealing ring 12 is arranged on the opening and closing plate 7, and the sealing ring 12 is positioned at a position aligned with a gap between the water outlet and the water drainage pipe 8. In reality, the water in the farmland is poured backwards, a lot of water even exceeds a drain pipe, but the external water pressure is too high, so that the water pressure in the underdrain is also ultrahigh, under the condition, the opening and closing plate can be fully jacked up, under the normal condition, the water pressure delivered in the underdrain is no matter how high, the farmland can be entered as long as the opening and closing plate floats water flow, the water pressure in the shell can not be too high, the whole device can normally work to control the water quantity of the farmland, but the water pressure in the underdrain is too high, and under the condition that the farmland is filled, the opening and closing plate can float the shell under the action of buoyancy to block the water outlet, the contact sealing ring can better realize the sealing of the water outlet, and the purpose of preventing the water from being poured backwards is realized. If the opening and closing plate floats to the uppermost end of the shell, water in the underdrain can enter a farmland from the drain pipe, the condition is that the water conservancy system problem is explained, and the problem which can be solved by the mechanism is not solved. Moreover, the situation is extreme, has low probability and can be solved by cutting off water from the source once being discovered.

The opening and closing plate 7 is a hollow plastic plate or a foam plate. The opening and closing plate with the material measuring structure has lower cost and is easy to popularize.

Claims

1. An agricultural irrigation mechanism, its characterized in that: the water supply device mainly comprises a water supply part (1) and a water discharge gate (2), wherein the water supply part (1) comprises an underdrain (3) positioned below a roadbed, and the underdrain (3) is communicated with the water discharge gate (2) through a water pipe (4); the water drain gate (2) comprises a shell (21), the lower part of the shell (21) is communicated with the underground canal (3) through a water pipe (4), a water outlet pipe (5) is arranged above the shell (21), a supporting plate (6) is arranged in the shell (21), a light material opening and closing plate (7) is arranged above the supporting plate (6), a water drain pipe (8) is arranged on the opening and closing plate (7), a water flow hole (9) is arranged on the supporting plate (6), the opening and closing plate (7) is freely pressed on the supporting plate (6) and completely covers the water flow hole (9), the water drain pipe (8) is sleeved in the water outlet pipe (5), and the end part of the water drain pipe (8) is higher than the water outlet pipe (5); the support plate (6) is fixed on the inner wall of the shell (21), and a gap (10) is reserved between the support plate (6) and the bottom of the shell (21); be equipped with inner tube (22) on backup pad (6), inner tube (22) upper end diameter is greater than drain pipe (8), and inner tube (22) lower extreme extends to in water pipe (4).

2. The mechanism of claim 1, wherein: the opening and closing plate (7) and the drain pipe (8) are integrated, and the opening and closing plate (7) is larger than the water flow holes (9) in the supporting plate (6).

3. The mechanism of claim 2, wherein: still be equipped with a plurality of limiting plates (11) in shell (21), limiting plate (11) are connected with shell (21) lateral wall, limiting plate (11) are the graticule, open and close the end of board (7) and do not make in the clearance between limiting plate (11) and open and close board (7) and remain stable when reciprocating.

4. The farm irrigation mechanism of claim 3, wherein: and a sealing ring (12) is arranged on the opening and closing plate (7), and the sealing ring (12) is positioned at a position aligned with a gap between the water outlet and the water drainage pipe (8).

5. The mechanism of claim 4, wherein: the opening and closing plate (7) is a hollow plastic plate or a foam plate.