JPS624572Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a horizontal water gutter that is installed at the drainage side end of a dark pipe installed in the stratum below the rice field for drainage of rice fields, and adjusts the drainage.

This type of water sludge occurs on the rice field as shown in Figure 1.
A dark pipe buried in the strata below 2 and a rice field ridge 3
A drain pipe 5 is connected from the water wall A to the drainage gutter 4 side. Then, by operating the handle pipe 6 of the water sluice A, it is used to adjust the drainage to the drainage gutter 4 in the dark pipe 2. The dark pipe 2 has holes 7 or grooves for water collection, and a water-permeable material 8, such as rice husk, is buried around the pipe 2. In this configuration, when water in the drain pipe 2 is drained into the drainage gutter 4 by operating the water drain A, if the water level in the gutter 4 is lower than the drain pipe 5, air will flow into the drain pipe 2. accumulate. This air comes into contact with the surrounding material 8 through the hole 7, accelerates the decomposition of the material 8, and causes the hole 7 to become clogged by the decomposed products. For this reason, the dark drainage facilities have been out of service for a long time and need to be rebuilt. The reason why wood etc. in water can be preserved for a long time is because contact with air is cut off, so this idea consists of water wall A so that dark pipe 2 is filled with water. It eliminates clogging and maintains water flow efficiency, and is designed to withstand long-term use.

To explain the water plug A of this invention using an example, the T-shaped stopper box 10 at the bottom rises from the inflow port 11 side toward the outflow port 12, and one end port (inflow side) is located below the rising pipe 13. The other end is integrated with the inlet 11, and an L-shaped overflow pipe 14 rising inside the riser pipe 13 is integrally installed therein. Therefore, water from the inlet 11 overflows from the overflow port 15 on the top surface of the overflow pipe 14 and flows from around the overflow port 15 to the outflow port 1.
The overflow port 15 is connected to the dark pipe 2 connected to the inlet 11 so that it flows out to the drain pipe 5 connected to the pipe 2.
It is set at a higher level. In recent years, rice fields have been improved to larger sizes, and the rice field 1 of that single rice field is horizontal, so the dark pipe 2 is also buried horizontally. Next, a packing 16 that is inclined toward the inner circumference is fitted into the periphery of the overflow port 15, and a cylinder 1 with a diameter and an inclined surface is fitted with a packing 16 that is inclined toward the inner circumference.
7 is fitted onto the lower end of the operating pipe 18, which extends upward, and is fitted onto the joint between the pipe 18 and the cap 20 which is placed over the outer pipe 19 which is fitted over the rising pipe 13 of the stopper box 10. When the pipe 18 is rotated by a cap 20 that is indirectly fixed to the stopper box 10 by screwing together the threaded pipe 21, the pipe 18 can be moved up and down. A cap 22 loosely fitted onto the pipe 18 is placed over the upper end of the outer tube 19, and the pipe 1 extends upward from the cap 22.
A T-shaped handle pipe 6 shown in FIG. 3 is fitted onto the upper end of the handle pipe 8. This invention is constructed by screwing end caps 23 onto the left and right ends of the pipe 6. In addition, 24 on the upper part of the cap 20 in FIG. 1 is a protection pipe, and 25 is a scale or colored tape indicating the opening/closing of the overflow port 15 and intermediate water leakage.

As shown in FIG. 1, the handle pipe 6 is attached as shown in FIG. climb. When the handle pipe 6 is raised, water is drained from the overflow port 15 to the drain pipe 5 in a state where the inside of the dark pipe 2 is filled with water. Next, when the hole 7 finally starts to become clogged, the following method is performed to backwash the hole 7. That is, remove the caps 23 from both ends of the upper end of the handle pipe 6, connect a water supply hose to one end and a drainage hose to the other end, and force-feed water from the water supply hose.
Thereafter, when water is absorbed from the drain hose, the holes 7 are scoured and the clogging is eliminated.

In this way, this invention has the advantage of suppressing the occurrence of clogging of the dark pipe 2 as much as possible, and backwashing it when it occurs.

[Brief explanation of the drawing]

Figure 1 is a usage diagram of the water plaster of this invention, Figure 2
The figure is a vertical cross-sectional view of the water pipe of this invention, and Figure 3 is a vertical cross-sectional view of the handle pipe. In the figure, 1 is a rice field, 2 is a dark pipe, 4 is a drainage gutter, 5 is a drain pipe, 6 is a handle pipe, 7 is a hole, 8 is a permeable material, 10 is a stopper box, 11 is an inlet, and 12 is Outlet, 13 is a rising pipe, 14 is an overflow pipe, 15 is an overflow port, 16 is a packing, 17
is a cylinder, 18 is a pipe, 19 is an outer tube, 20 is a cap, 21 is a screw tube, 22 is a cap, and 23 is an end cap.

Claims (1)

[Scope of utility model registration request] Stopper box 1 connected to dark pipe 2 and drain pipe 5
0, and an L-shaped overflow pipe 14 that is integrated with the inlet 11 from the inlet 11 side and rises up into the riser pipe 13 from the inlet 11 side in the stopper box 10, and an outer pipe built on the riser pipe 13. Inside 19, at the lower end is a cylinder 17 seated at the overflow port 15 of the overflow pipe 14.
A pipe 18 with a handle pipe 6 provided at the upper end is inserted through the pipe 18, and a cap 20 at the upper end of the outer pipe 19 and a threaded pipe 21 provided in the middle of the pipe 18 are screwed together to allow the pipe 18 to move up and down freely. This field drainage system is characterized in that water in a pipe 2 overflows from an overflow port 15 located above the pipe 2 to prevent air from remaining in the pipe 2.