JP2599647B2 - Garbage collector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refuse remover installed in an intake channel for sewage, seawater, lake water, river water, or the like to remove relatively large trash contained in running water. is there.

[0002]

2. Description of the Related Art In this type of conventional dust remover, a bar-shaped or grid-like bar screen composed of a plurality of bars is disposed in a tubular water passage so as to cross the water passage in an orthogonal direction. The garbage contained in the running water during normal use is configured to be captured by the bar screen.

[0003]

The conventional refuse remover is constructed as described above, and when the bar screen becomes full of refuse, the use of the water channel must be stopped to disassemble the screen. Cleaning work takes a lot of time and labor. In addition, when the bar screen is clogged with dirt, a method of performing backwashing and automatically removing dirt from the screen has been conventionally implemented.
Even by this backwashing, string-like debris entangled with the bar screen is difficult to remove. Therefore, it is conceivable to install a special automatic cleaning device near the bar screen to eliminate string-like debris, but in this case, the entire equipment becomes expensive.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a refuse remover which can surely remove refuse or the like entangled in a screen by backwashing and can easily reduce the cost.

[0005]

In order to achieve the above object, the present invention provides a refuse remover comprising a grid-like or mesh-like bar screen arranged so as to traverse a waterway, and a flow of water used during normal use. And a plurality of movable screen bars which are freely movable such that the front ends thereof are separated to a position facing downstream in the flow direction of the backwashing water at the time of backwashing.

[0006]

According to the above construction, during normal use, the movable screen bar comes into contact with the screen in the flow of the water used, so that the opening of the bar screen becomes small, and the dust contained in the water normally used is captured as specified. be able to. When this bar screen is clogged with debris, backwashing is performed. At this time, the movable screen bar moves so that its tip is separated from the bar screen by the flow of backwash water. Opening becomes larger.
As a result, the garbage can be automatically discharged without disassembling the bar screen, and since the movable screen bar has a posture along the downstream side in the backwashing direction, string-like garbage entangled in the movable screen bar or the like can also be removed. It easily falls off and is discharged.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing a dust remover according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a tubular water channel for taking in sewage or the like, and a bar screen 3 formed by arranging a plurality of bars 2 in a lattice pattern as shown in FIG. It is installed so that it crosses. Reference numeral 4 denotes a plurality of movable screen bars scatteredly mounted on the bar screen 3, and is made of, for example, a string made of a synthetic resin. The string 4 has a stiffened portion 4a at the distal end, and a proximal end 4b is formed to be thin to provide flexibility.
And is freely pivotally attached to the upstream side surface of the bar screen 3 via the. Thereby, the scring 4
During normal use, the flow of the used water abuts on the upstream side surface of the bar screen 3, and at the time of backwashing, the flow of the backwash water causes the tip to move from the bar screen 3 side to the downstream side in the backwash direction. It is designed to be separated. The length L of each string 4 is set to be longer than the diagonal length 1 of the opening of the bar screen 3.

Next, the operation of the above configuration will be described. During normal use of the waterway 1, dirt contained in the water used is captured by the bar screen 3 arranged so as to cross the waterway 1. Moreover, at this time, since the plurality of strings 4 abut on the upstream side surface of the bar screen 3 due to the flow of the normal use water as shown by the solid line in FIG. 1, the opening of the bar screen 3 is small. Therefore, even small refuse is effectively captured.

When the bar screen 3 is clogged with dust, backwashing is performed to remove the dust. That is, at the time of backwashing, the string 4 is separated from the upstream side surface of the bar screen 3 by the flow of the backwashing water as shown by the chain line in FIG. growing. Therefore, the refuse is automatically discharged without disassembling the bar screen 3 due to the flow of the backwash water and the increase of the opening.

In particular, at the time of the above-mentioned backwashing, the leading end portion 4a side of the string 4 is separated and the posture extends to the downstream side in the flow direction of the backwash water, so that string-like debris entangled with the string 4 can be easily obtained. You will fall out. As a result, there is no need to introduce a dedicated cleaning device, and a low-cost cleaning operation is achieved.

Since the strings 4 have rigid end portions 4a, entanglement between the strings 4 or between the strings 4 and the bar screen 3 is effectively prevented.

By the way, in the above-described embodiment, the string 4 having a flexible end portion 4b as a movable screen bar is provided.
However, the present invention is not limited to this. For example, as shown in FIG. 4, a rigid bar 41 is used, and its base end is pivotally connected to the bar screen 3 side via a universal joint 42 so as to be freely movable. However, the same effect can be obtained.

[0014]

As described above, according to the present invention, the bar screen arranged so as to cross the waterway is brought into contact with the bar screen during normal use, and the tip thereof is separated from the bar screen during backwashing. Since the screen bar is freely movable, the dust trapped on the bar screen can be discharged without the need for disassembly of the bar screen, and even if the dust entangled with the bar screen is a string, Without depending on the cleaning equipment
It can be automatically eliminated by the movement of the movable screen bar.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an example of a refuse remover according to the present invention.

FIG. 2 is a front view showing a bar screen in the garbage collector.

FIG. 3 is an enlarged explanatory view of a string which is an example of a movable screen bar.

FIG. 4 is a side view showing another example of the movable screen bar.

[Explanation of symbols]

 1 Waterway 3 Bar screen 4,41 Movable screen bar

Claims (1)

(57) [Claims] 1. A grid-like or net-like screen arranged so as to traverse a water channel, and in normal use, abuts against the upstream side surface of the screen by the flow of use water. A refuse remover comprising a plurality of movable screen bars which are freely movable so as to be separated from each other in a posture facing a downstream side in a flow direction.