JPS5830443B2 - Wiper device for waterway dust remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sieve sludge scraping device for a waterway dust remover installed in a sewage channel, an irrigation water intake channel, or the like.

Conventionally used dust removers can be roughly divided into three types: surface scraping type, middle scraping type, and back scraping type, depending on the positional relationship of the sieve residue scraping device to the dust removal grid installed across the flow path. Ru.

Among these, the so-called back scraping type has a sieve residue scraping device installed on the downstream side of the dust removal grid, and is therefore convenient for scraping up dust in the flow path.

However, the garbage contains various types of materials such as hard and soft shapes, and even after being scraped up by the scraping device, they do not come off easily, making it extremely difficult to discharge them.

For this reason, a wiper device that slides into contact with the rake that constitutes the raking device is attached, but it is usually a pendulum-type self-weight lever set.

In such a pendulum-type self-weight lever set, one end of the rake collides with one end of the wiper scraper blade as the rake moves, and as the wiper lifts up in sliding contact with the rake, the wiper scraper blade slides on the rake in the direction in which the sieve residue falls. It is something.

The scraping contact trajectory can be set freely, and the mechanism is simple, so it is inexpensive and requires less space, so it is widely used.

However, due to the closeness of the hard and soft shape of the sieve residue on the rake, the wiper tip does not always come into contact with the upper surface of the rake and often rides on the sieve residue.

Also, depending on the size of the object that has climbed on it, a portion of the object may often be left unscrewed.

Furthermore, since the wiper scraper uses the action of sliding on the rake, it also forces the sieve residue onto the rake.
There is a drawback that sieve residue wrapped around clay made of flat cloth, paper, vinyl, etc. or string-like materials becomes extremely difficult to wipe.

This invention provides a device that applies force to the end of the scraping part of a wiper during scraping and its return, makes each tip independent, and satisfies the wiper tip without transmitting the adverse effects of non-uniformity of sieve residue to the entire length. The purpose is to

This invention will be explained with reference to figures of embodiments.

FIG. 1 shows a view of the upper part of the dust remover during scraping of sieve residue, and FIG. 2 shows a view of the swinging arm away from the grid.

The screen par 1 is formed by integrating a horizontal beam that crosses the flow path at right angles to an upper frame 2 installed horizontally above the flow path, and tension bolts 3 attached to the horizontal beam are used to connect the bottom frame to the bottom of the flow path. The bar screen is placed in a vertically tensioned waterway mountain.

Waterway O The water flow is directed from the A side of Screen Par 1 to the B side,
There is a blocked sieve residue 4 on the A side (front side) of the screener 1.

On the B side (rear side) of the screen par 1, the rake 5 is fixed to the rake frame 6, and the rake frame 6 is connected to the swinging guide arm 7.
It is fitted so that it can be raised and lowered freely.

A lifting rope 8 is connected to the rake frame 6, and this lifting rope 8
Wrap it around the rope sheep 9.

The rope sheep 9 and the swing guide arm 7 are rotatably fitted onto the support shaft 10.

On the A side of the screen par 1, a chute 11 is swingably provided above the water surface via a hinge 12, and one edge of the chute 11 is always placed against the screen par 1.

Wiping bars 13 arranged in rows in a rake shape are provided above the chute 11 so that their tips pass through the gap between the screeners 1.

The base of this wiping bar 13 is installed side by side under the upper end lever 15 through which the support shaft 14 passes.

The communication lever 1 is connected to the upper end of the upper end lever 15 via a pin 16.
Connect one end of 7 in a flexible manner.

On the other hand, a piece 19 is fixed above the swing guide arm 7, and the piece 19 and the connecting lever 17 are connected via a pin 18 so as to be freely bendable.

The hinge 12 and the support shaft 14 are fixed to a frame cover 20 provided on the upstream side of the screener 1.

A screener 1 blocks the sieve residue 4 in the flowing water of the flow channel to its A side.

The guide arm 7 of the rake frame, which has swung to the swing limit parallel to g, stops at the screen par 1, and the rake frame 6 is pulled by the rope, and while it is in constant contact with the guide arm, the rake moves along with the rake frame to the screen par. rise in parallel direction.

By the rising rake frame 6, the tip of the rake 5 scrapes upward the sieve residue 4 blocked by the screener 1.

When the rake 5 and the rake frame 6 reach the upper end of their ascending and descending strokes, the traction by the rope 8 is stopped and the arm 7 is swung away from position C in FIG. 1 to position D in FIG. 2.

The swinging arm 7 can retract the tip of the rake 5 protruding upstream of the screen par 1 downstream, so that the sieve residue 4 on the rake 5 falls freely from the screen par 1 due to its own weight. .

That is, the rake 5 supported from below is pulled downstream and removed, and the rake 5 is prevented from interfering with the chute 11 when descending.

The swinging wiping bar 13 wipes off the sieve residue 4 attached to the screener 1.

The chute 11 allows the ascending rake 5 for lifting up the sieve sludge 4 to pass freely, and guides the sieve sludge 4 swept away from the sumo wrestler to a place away from the screener 1.

After swinging the arm 7 that guides the rake frame to the D position,
When the rope 8 is loosened, the rake 5 and the rake frame 6 descend along the arm 7 due to their own weight.

When the rake frame 6 reaches the lower end, the arm 7 is swung in the direction C, and the rake 5 penetrates into the gap between the screeners 1.

The sieve residue 4 is removed by repeating the above action.

The wiping bars 13 are lined up in the same number of gaps as the screeners 1, each with a round bar with a pointed tip, and by leaving a slight gap with the upper surface of the blade of the rake 5 when swinging, the sieve residue 4 can be cleaned smoothly. brush it off.

Further, by making the distance between the bins of the upper end lever 15 and the connecting lever 17 adjustable, the swing range, swing angle, and rotation speed of the tip of the wiping bar 13 can be freely adjusted.

It is convenient if the wiping bar 13 has a removable structure.

As described above, in the present invention, a rake is passed through the gap between the screen bars from the downstream side of the screen bar provided vertically, and the rake rises from the bottom to the top of the sieve residue blocked on the upstream surface of the screen bar. The material is scraped up one after another and collected upwards as a sieve residue, similar to folding miscellaneous cloth into a bellows shape.

The sieve residue has moved vertically by being pushed up from below and reached its lifting limit, and has entered the gap between the bar screens.
It is pushed in from the front.

The present invention uses a wiping bar to push away the sieve residue pushed in from the front of the bar screen from the rear to the front at the upper limit, and also utilizes the swing of the arm of the scraping mechanism for the swing of the wiping bar. Therefore, a separate vibration source is not required.

The ability to swing the wiping bar without a separate vibration source eliminates the need for economical and complex maintenance such as detection sensors, wiring, control panels, and power consumption.

From the above, the present invention can remove the entire amount of sieve residue entangled with the bar screen from the top surface of the rake without secondarily getting entangled with the wiping bar, so that the sieve residue can be removed reliably and efficiently. Since it was possible to swing without any special control, the structure was simple, no maintenance was required during operation, it could be operated continuously, and it was also economically inexpensive.

[Brief explanation of drawings]

FIG. 1 is a view of the upper part of the dust remover according to the embodiment of the present invention while sieve residue is being scraped up, and FIG. 2 is a view of the above-mentioned swing arm being swung. 1...Screen bar rake frame, T...Arm, 13...Wiping bar upper end lever. 5...Rake, 6...11...Chute, 14...Axis, 15...

Claims (1)

[Scope of Claims] 1. A horizontal beam provided at the upper part of the flow path substantially perpendicular to the flow path;
A bar screen consisting of a plurality of bars stretched vertically from this horizontal beam to the bottom of the channel at approximately equal intervals is installed, while a rake as a scraping mechanism is installed on the downstream side of the channel with the bar screen in between. A guide arm is provided on which the rake frame with the rake runs in order to allow the rake frame with the rake to move up and down and swing freely.
The arm itself is suspended by being pivotally supported on a bracket on a horizontal beam, and the rake frame with a rake, which runs in contact with the swinging guide arm, moves in the desired direction away from the bar screen, and is guided at the lower limit. At the same time as the arm swings toward the screen, the tip of the rake enters the gap between multiple bars from the downstream side of the bar screen and penetrates to the upstream side, scraping up the sieve residue that was blocked on the upstream side of the bar screen. At the same time, only the rake frame with rake rises to the upper limit, and at the upper limit, the guide arm swings in the downstream direction, and at the same time, the rake frame with rake that is running in contact with the bar screen is pulled out in the direction away from the bar screen. In a waterway dust remover that consists of a series of raking mechanisms that repeat the cycle of lowering the rake, penetrating the gap between the bars, raising the rake to scrape up the sieve residue, and removing the rake at the upper limit of the rake, the rake at the upper limit of the rake rises. The tip of the wiping bar facing the upper end swings between the gap between the screen bars and the upstream space of the screen bar,
A sieve sludge scraping device for a waterway dust remover, characterized in that the swinging of the wiping bar is operated via a communication member provided on a guide arm. 2. In claim 1, the wiping bar has a number of bars that almost match the number of gaps between the screen bars and is fixed to a shaft that is supported through a frame cover fixed to a horizontal beam, and one end is attached to this shaft. The link of the pin support is fixed, a pin seat is provided on the guide arm, and a connecting lever is interposed between the link of the pin support and the pin seat, so that the guide arm swings by the swing of the guide arm. A sieve sludge lifting device for a waterway dust remover in which the wiping bar always swings in the opposite direction to the direction of power.