JPS5934626Y2 - automatic sludge removal device - Google Patents

Description

[Detailed explanation of the idea] When carrying out construction work to extend the main water pipe or branch pipes from the main pipe, no matter how careful you are, it is impossible to prevent dirt from entering the new pipe. Can not.

In addition, water scale adheres to the pipe walls due to long-term use.

The first known method for removing mud and water scale is
As shown in the figure, a water utilization valve 4 is provided between a branch pipe 2 connected to a main pipe 1 and a new pipe 3, and a drain valve 5 and a riser pipe 6 are provided.

After the construction is completed, the water utilization valve 4 is opened to allow water to flow through the riser pipe 6.
When the water is drained into the side ditch 7 through the drain, the earth and sand in the new pipe 3 is discharged to the outside.

After this work is completed, when the drain valve 5 is opened, the riser pipe 6
The water inside is drained underground through the drain valve 5.

The above is a known method, but in cold regions such as Hokkaido, there is a risk that the water in the pipe will freeze in the winter, so
Both new pipes and new pipe 3 will be buried underground below the freezing depth.

Freezing depth varies from region to region, but it indicates the depth in units of length between the part of the ground that does not freeze even at the lowest temperature in that region and the ground surface.

Therefore, water control valves 4 and drain valves 5 located underground are located above the ground surface.
This means that you will have to operate the .

Whether or not the water control valve 4 has operated as expected can be known from the fact that water is being drained, but it is difficult to fully know whether or not the drain valve 5 has operated as expected. Even if the drain valve 5 is clogged and closed incompletely, causing water leakage, it is difficult to know.

The present invention focuses on the above points and aims to provide an automatic sludge draining device as a drain valve that can be automatically opened and closed.

A more detailed explanation will be given below with reference to an embodiment shown in the accompanying drawings.

8 in the face is an elbow type valve box, and the flange 9 is the new pipe 3.
The flange 10 is connected to the riser pipe 6.

Reference numeral 11 denotes a drainage elbow, which is attached to the vertical portion of the valve box 8, and has a drainage port 12 provided at its lower part.

13 is a resistance plate, the base 14 is gate-shaped, and the upper part is a resistance part 15.

16 is a rod, one end of which is fixed to the drainage elbow;
At the other end, a resistor plate is pivotally connected by a pin 17.

18 is a piston, and the piston rod 1 is fixed to this piston.
The other end of 9 is pivotally connected to the lower end of the base 14 by a pin 20.

The drainage elbow 11 is provided with a through hole 21, and the piston rod 19 is inserted through the through hole 21, and the internal inclined portion 2
The angle 2 is matched to the angle of the piston neck 23.

24 is a guide plug, which is screwed into the right side surface of the drainage elbow 11.

The mode of use of the invented product is as follows.

That is, when the construction is completed and the water utilization valve 4 is opened, water flow starts, but due to the water pressure, the resistance plate 13 receives pressure in the direction shown by the arrow in FIG. It cannot be rotated in the direction shown in FIG. 3, and is in the state shown in FIG.

In this way, the water is discharged into the gutter 7 through the riser pipe 6 while removing mud.

At this time, since the neck 23 of the piston 18 is pressed against the slope 22 of the drain elbow 11, water does not enter into the drain elbow 11 through the through hole 21.

When the water control valve 4 is closed, the water pressure from below disappears, and the pressure of the water column in the pipe 6 applies pressure in the direction shown by the arrow in FIG. 5, and the resistance plate 13 rotates counterclockwise about the pin 13 as a fulcrum. I am forced to do it.

As a result, the piston 18 moves to the right in the figure, resulting in the state shown in FIG.

At this time, the pressure bond between the slope 22 and the neck 23 is released, so that the water in the riser pipe 6 is guided into the drain elbow 11 through the through hole 21 and discharged into the ground from the drain port 12.

When a branch pipe connecting each household is attached to the new pipe 3, mud is removed as described above, and the above operation is repeated.

Since the present invention has the above-mentioned configuration, it does not cause clogging like known drain valves, and it automatically drains mud and drains water without requiring remote control, so it has the effect of eliminating all the shortcomings of known products. There is.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram illustrating a known method. FIG. 2 is a schematic diagram showing the mounting position of the product of the present invention. FIG. 3 is a front sectional view of the product of the present invention, showing the state during mud removal. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. FIG. 5 is a front sectional view of the product of the present invention, showing the state in which water in the riser pipe is being discharged underground.

Claims (1)

[Scope of utility model registration request] The vertical part of the elbow-type valve box 8 has a chamber inside and a through hole 2 on the side.
1 is provided with a drainage elbow 11 having a drainage port at the bottom, a rod 16 fixed to this elbow, and a piston 1 housed in a chamber.
A resistance plate 13 having a resistance part 5 at the top and a gate shape at the base 14 is pivotally connected to the other end of the piston rod 8 which protrudes through the through hole 21 by means of pins 17 and 20, respectively. Automatic sludge removal device.