JP3286267B2 - Self-cleaning device for drains - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to rainwater, domestic wastewater,
The present invention relates to a self-cleaning device for a drainage ditch, which is installed in a drainage ditch for flowing factory drainage and the like and used for automatically cleaning the drainage ditch.

[0002]

2. Description of the Related Art Drainage drains that drain rainwater, domestic drainage, factory drainage, etc., which are present in large numbers in residential areas and in the vicinity of factories, have a structure in which drainage is drained by natural flow due to gradients. It is installed on the side of the road.

[0003]

The above-mentioned conventional drains have a large flow of water during precipitation, so that trash, foreign matter, fallen leaves, etc., which fall into the grooves, flow out beautifully, but when clear weather continues or when water flows. When the amount is small, the "garbage" that has fallen in the grooves accumulates and becomes unsightly and contaminated, so that it is sometimes necessary to manually clean it, and there is a problem that the management is troublesome and the aesthetic appearance is impaired. The present invention is to provide a self-washing device for drainage which solves the above-mentioned problems.

[0004]

A self-cleaning device for a drainage gutter according to the present invention, which solves the above technical problem, comprises a flowing weir suspended by being hingedly connected to a gate plate holding portion provided at the upper end of the drainage gutter. a stopper gate plate, comprising a float for level detection of the upstream side of the drainage groove, the float is vertically movably held by the gate plate holding unit to the lower end by the locking pin and forming the actuating pin, further, the gate plate Is open upward and at the bottom
Concave arc-shaped lock pipe having a lock hole and approximately 1/4 circumference
A lock receiver is provided on the running water blocking side near the upper end.
The gate plate is closed by engaging the lock plate with the lock hole.
Lock the posture and raise the float due to rising water level
The lock is unlocked by rising
The gate plate is automatically tilted and released, before the water level drops
The lock can be automatically restored by lowering the float
It has become the structure ".

That is, in the self-washing device for drainage ditch of the present invention, a ditch gate plate is installed to be openable and closable across the ditch to stop the drainage and store water upstream, and the water level of the storage water is set in advance. When the water reaches the top dead center, the float set on the upstream side rises to unlock the gate plate, and the gate plate is pushed open by the pressure of the stored water to generate a single airflow, and the single airflow causes the flow in the downstream groove. When the water level on the upstream side drops, the gate plate returns to the closed state by its own weight and is locked by the lock pin on the float side, and the gate plate is stored again on the upstream side to generate the next airflow. Then, the above-mentioned automatic cleaning action is repeated.

[0006]

The self-cleaning device for drainage ditch of the present invention described above uses a pool for storing drainage water on the upstream side and automatically opens the gate to repeatedly generate a single airflow. Kind "
Can be automatically flushed by the air flow.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. That is, the drainage self-cleaning device 1 of this embodiment is to be installed in a gutter composed of a concrete U-shaped groove 10 which is often present in a residential area, a factory area, and the like.
The gate plate holding portion 3 is fixed across the groove mounting portion 5 that is set on the upper edge of both sides of the U-shaped groove 10 while being covered. A closing gate plate 2 that can be freely opened and closed is suspended via the hinge portion 4 and hangs down by its own weight in a free state where it is not subjected to an external force, and the U-shaped groove 10 is formed on the upstream side and the downstream side. Partition and close.

The gate plate 2 is provided with lock / unlock means for locking the gate plate 2 in the closed position and releasing the lock by the upstream water level. More specifically, an upper end of an operation bar 7 slidably inserted vertically into a holding portion 9 provided on the gate plate holding portion 3 is bent in an inverted U-shape, and a float 6 is suspended from the gate plate 2. It is a detection unit for the upstream water level that rises or descends in conjunction with the water level on the upstream side, which is located on the upstream side.

[0009] Then, the upper end of the gate plate 2 on the side of the running water dam.
The part has an opening that is upward and has a lock hole 12 at the bottom.
Lock pin receiver 11 with concave arc shape of 1/4 circumference is provided.
And a lock pin at the lower end of the operating bar 7 through the holding portion 9
8 is joined to the inner periphery of the lock pin receiver 11 and the float 6
When the gate plate 2 is in the closed position, the lock pin 8 is in the lock hole 12
The gate plate 2 enters the gate plate 2 to lock the closing position of the gate plate 2.

That is, when the lock pin 8 is pulled out of the lock hole 12 and the unlocked gate plate 2 is released from the closed restraint and rotates and opens around the hinge 4, the lock pin receiver 11 is turned on. The lock pin 8 receives the lock pin 8 irrespective of the rotation angle, and serves as a “lock pin 8 descent prevention portion” for maintaining the unlocked state.

In the open state of the gate plate 2, regardless of the release angle, the "lock pin 8 going down by gravity" is placed and held, and the lock pin 8 is moved in accordance with the fluctuation of the rotation angle of the gate plate 2. Is held while sliding.

The drainage self-cleaning device 1 of the embodiment shown in FIG.
Operates as follows. That is, (see FIG. 2), since the gate plate 2 installed in the U-shaped groove 10 is locked by the lock pin 8 in the hanging posture, a small amount of flowing water is blocked and stored upstream. And the water storage 15
When the water level reaches the upper limit water level, the lock pin 8 rises together with the rise of the float 6 linked with the rise of the water level, and when the float 6 finally comes out of the lock hole 12, the gate plate 2 is unlocked and the upstream water storage The air pressure is released at once by the water pressure, and the air current 20 flows out to the downstream side.

Then, the lock pin 8 during the outflow of the water is stored.
Due to its own weight, it is joined to the concave arc-shaped lock pin receiver 11 and the ascending position is maintained, and the unlocked state of the lock pin 8 detached accurately is maintained regardless of the opening angle of the gate plate 2.

When the water storage 15 has finished flowing, the gate plate 2 returns to the vertical position by its own weight, a lock hole 12 appears below the lock pin 8, falls by gravity, is automatically locked, and is again locked upstream. And the same operation is repeated. Thus, on the downstream side of the gate plate 2, “dust / foreign matter” is swept away by the air current 20 and is removed and automatically cleaned. The “garbage / foreign matter” that has flowed to the downstream side is collectively collected and removed by a “garbage net” or the like set at the terminal of the U-shaped groove 10.

The present invention is not limited to the above-described embodiment. Although not shown, a seal between the peripheral edge of the gate plate 2 in a closed state and the inner periphery of the U-shaped groove 10 to prevent water leakage is provided with a seal portion U. A protection net that is provided on the inner circumference of the groove 10, allows the set point of the float 6 with respect to the operation bar 7 to be adjusted up and down, and prevents the lock pin receiver 11 and the float 6 from being caught by “garbage and foreign matter” in the water. And other changes.

Further, in the locking / unlocking means for the gate plate 2, the lock hole 12 is formed to be a long hole in the rotation direction of the gate plate 2, and the lock pin 8 can be opened even when the gate plate 2 is slightly opened by a small amount of flowing water. Lock by
In some cases, water is stored in that state.

[0017]

As described above, the drainage self-cleaning device of the present invention can automatically clean the inside of the ditch by a single flow of the pooled running water, so that complicated daily management of the drainage ditch is not required. There are various effects of preventing pollution of the drainage ditch, constantly maintaining a clean and beautiful feeling, and maintaining and improving the aesthetic appearance around the existence of the drainage ditch.

[Brief description of the drawings]

FIG. 1 shows a self-washing device for drainage of one embodiment of the present invention,
(A) is a perspective view showing its structure, and (B) is a perspective view of its use state.

FIG. 2 is an explanatory view of the operation of the self-washing device for drainage ditch of FIG. 1 embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-washing device for drain grooves 2 Gate board 3 Gate board holding part 4 Hinge part 5 Groove mounting part 6 Float 7 Operating bar 8 Lock pin 9 Holding part 10 Side groove 11 Lock pin receiver 12 Lock hole 15 Water storage 20

Claims (1)

(57) [Claims] 1. A running water blocking gate plate hingedly connected to a gate plate holding portion laterally provided at an upper end portion of a drainage groove, and a float for detecting a water level upstream of the drainage groove,
The float is vertically movably held by the gate plate holding portion by an operation pin having a lower end serving as a lock pin, and the gate plate is opened upward and has a lock hole at the bottom.
The lock pin receiver with a concave arc shape of about 1/4 circumference
The lock pin has
Locks the closed position of the gate plate by engaging the lock holes
And rise of the float due to rising water level
Therefore, the lock is unlocked and the gate plate
Automatically release the tilt and lower the water level
A self-cleaning device for drainage, characterized in that the lock can be automatically restored to the lock by lowering .