JPH034862Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a flow rate regulating device that regulates the flow of rainwater and sewage in reservoirs, water tanks, large water tanks, etc. in developed areas.

(Prior Art) Conventionally, in this type of device, a slide gate is attached to the drain port of a water tank interposed in a flow channel, and the water is drained through the gate via a spindle having a handle at the tip, which is vertically attached to the gate. It opened and closed its mouth to adjust the flow rate.

(Problems to be Solved by the Invention) In the above-mentioned conventional apparatus, as the depth of water increases, the spindle becomes longer and the operation chamber becomes larger, which increases the equipment cost even though it is used less frequently. There were also cases in which operation became impossible due to shaft distortion caused by ground movement.

(Means for Solving the Problems) The present invention was proposed in order to solve these problems, and is a method of separating an upper inflow part and a lower outflow part in a water storage tank installed in a flow channel. A water passage hole is formed in the intermediate floor by inserting a water passage hole into which a vinyl chloride pipe is inserted, and a lifting cable is attached to a hanging metal fitting provided at the upper end of a spherical valve that opens and closes the water passage hole. A water flow rate adjusting device for a water storage tank, characterized in that a lower end is attached to the spherical valve, and a chain is suspended from the lower end of the spherical valve, passing through the water passage hole and having a pullout prevention iron rod connected to the lower end. This is related.

Since the present invention is constructed as described above,
When draining water from the water tank, a spherical valve that closes a water passage hole formed in the intermediate floor that partitions the upper inflow part and the lower outflow part of the water tank is attached to a hanging metal fitting provided at the upper end of the valve. By raising the attached lifting cable, it is removed from the water passage hole, and the running water that has flowed into the upper inflow part is introduced into the lower outflow part through the water passage hole, and is drained from the same part.

At this time, since a chain is suspended at the lower end of the spherical valve that passes through the water hole and has a pull-out prevention iron rod connected to the lower end, if the lifting cable is about to be hoisted up excessively, , the iron rod is locked to the lower peripheral edge of the water hole in the intermediate floor,
This prevents overwinding of the lifting cable.

When storing water in the water tank, the lifting cable is lowered and a spherical valve suspended from the lower end of the cable is seated in the water passage hole of the intermediate floor, thereby connecting the upper inflow part and the lower outflow part. The communication is cut off and water is stored in the inflow section.

At this time, the chain to which the iron rod for preventing extraction is connected induces the spherical valve to sit in the water passage hole.

Furthermore, since the water passage hole is formed in a cylindrical shape with a PVC pipe inserted into the intermediate floor, it can be used in water storage tanks such as reservoirs and silt ponds where earth and sand and muddy water flows in and are used extremely infrequently. Unlike when the water hole is shaped like a funnel, there is no risk of the valve being buried due to accumulation of earth and sand.

In addition, since the water passage hole is constructed by inserting a vinyl chloride pipe into the intermediate floor, the spherical valve is in close contact with the inner circumferential surface of the vinyl chloride pipe that forms the inner circumferential surface of the water passage hole, thereby shutting off water. This is to reliably seal the hole.

(Effects of the invention) As described above, according to the invention, instead of the conventional flow control mechanism using a slide gate and a spindle,
Using a circular valve that is attached to and removed from a cylindrical water hole formed by inserting a vinyl chloride pipe into the intermediate floor that separates the upper inlet and lower outflow of the water tank, and a lifting cable that raises and lowers the valve. This greatly simplifies the structure and operation, and prevents operations from becoming impossible as in the past even if ground movement occurs. Further, since the water passage hole is formed in a cylindrical shape, there is no possibility that the spherical valve will be buried in accumulated earth and sand.

Furthermore, a chain having a pull-out prevention iron rod attached to the lower end is suspended from the spherical valve, so that the chain serves as a guide member when seating the spherical valve in the water passage hole, and The iron rod prevents the lifting cable from being overwound.

(Example) The present invention will be described below with reference to the illustrated embodiments.

Reference numeral 1 denotes a water storage tank disposed within a developed area, and an intermediate floor 2 is disposed to partition an upper inflow portion 1A and a lower outflow portion 1B.

3 is an inlet provided in the upper inflow portion 1A;
4 is a screen disposed at the inlet 3, and 5 is an outflow pipe connected to the lower outflow portion 1B.

A circular water hole 7 into which a vinyl chloride pipe 6 is inserted is formed in the intermediate floor 2, and a soft vinyl chloride plate 8 is layered around the water hole 7 on the intermediate floor 2.

A spherical valve 9 made of vinyl chloride is provided in the water hole 7.
The spherical valve 9 is suspended from the tip of the lifting cable 10 via a hanging fitting 11.

In the figure, 12 is a guide roller for the lifting cable 10.

Further, a chain 14 is suspended from the lower end of the spherical valve 9, passing through the water passage hole 7 and having a pull-out prevention iron rod 13 connected to the lower end.

Since the illustrated embodiment is configured as described above, from the water cutoff state shown in FIG. When the spherical valve 9 is lifted up and removed above the water passage hole 7, the fluid in the upper inflow part 1A enters the lower outflow part 1B through the water passage hole 7.
It is discharged from the outflow pipe 5.

Further, when the lifting cable 10 is lowered and the spherical valve 9 is seated in the water passage hole 7, the water stops as shown in FIG. 1.

In this way, according to the embodiment, instead of the conventional flow control mechanism using a slide gate and a spindle, a flow control mechanism consisting of a spherical valve 9 and a lifting cable 10 is used, and the lifting cable 10 is raised and lowered to control the spherical valve. 9 is attached to and detached from the water passage hole 7 provided in the intermediate floor 2 to adjust the amount of water flowing.
The structure and operation are significantly simplified, and the flow rate can be controlled without any problems even if ground movement occurs.

FIG. 3 shows a case in which the present invention is applied to a flow rate regulating device for a waterway flowing from the ground to an outflow culvert, in which a vertical hump pipe 16 communicating with the outflow culvert 15 is used,
A spherical valve 9 suspended from a lifting cable 10 is detachably mounted at the upper end opening of the hue pipe 16 which forms a water passage hole for the outflow conduit 15.

In the figure, reference numeral 17 denotes a packing made of a soft vinyl chloride plate, reference numeral 18 denotes reinforcing concrete around the outer periphery of the humid pipe 16, and other parts in the figure that are equivalent to those of the previous embodiment are given the same reference numerals.

[Brief explanation of the drawing]

FIGS. 1 and 2 are longitudinal sectional views showing a water stop state and a draining state of an embodiment of the water flow rate regulating device in a water storage tank according to the present invention, respectively, and FIG. 3 is a longitudinal sectional view showing another embodiment of the present invention. FIG. 1...Water tank, 1A...Upper inflow section, 1B...
Lower outflow section, 2... Intermediate floor, 7... Water hole, 9...
... Spherical valve, 10... Lifting cable.

Claims (1)

[Scope of utility model registration request] A water passage hole formed by inserting a water passage hole into which a vinyl chloride pipe is inserted is formed in an intermediate floor that partitions an upper inflow part and a lower outflow part in a water storage tank interposed in a flow channel, and The lower end of the lifting cable is attached to the hanging metal fitting provided at the upper end of the spherical valve that opens and closes the water hole, and an iron rod for preventing extraction is connected to the lower end of the spherical valve and passes through the water hole. A water flow rate adjusting device for a water storage tank, characterized in that it is formed by suspending a suspended chain.