JP2001049641A - Dust removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the slipping-out of dust from a scraping mechanism and a section between screens. SOLUTION: The dust removing device has a screen 2 capturing dust mixed in flowing water W, a scraping mechanism 3 scraping-up and removing dust captured by the screen 2 from a lower section to an upper section and a dust discharge opening 4 formed on the upper side of the screen 2 and discharging dust. An elastic pressure mechanism 6 applying pressure to scraping-up is annexed to the scraping mechanism 3 scraping up dust up to the dust discharge opening at that time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD [0001] The present invention belongs to the technical field of a dust remover that captures and removes dust mixed in running water.

[0002]

2. Description of the Related Art Conventionally, as dust removing devices, for example, those described in Japanese Patent Publication No. 60-7928 and Japanese Utility Model Publication No. Sho 60-35617 are known.

[0003] This conventional dust removing device is provided on a screen for catching dust mixed in running water, a scraping mechanism for scraping up and removing dust trapped on the screen from below, and an upper portion of the screen. A dust outlet for discharging dust.

According to this conventional dust remover, dust that is mixed into running water and flows sequentially can be reliably captured by a screen, continuously scraped up by a scraping mechanism, and removed from a dust outlet.

[0005]

In the above-described conventional dust removing device, dust that is picked up by the scraping mechanism may come off from between the scraping mechanism and the screen and fall off, so that the dust removing efficiency is low. There is a problem.

SUMMARY OF THE INVENTION The present invention has been made in consideration of such problems, and has as its object to provide a dust removing apparatus which prevents dust from being extracted from between a scraping mechanism and a screen.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, a dust removing device according to the present invention employs the following means.

That is, in the first aspect, a screen for catching dust mixed in the running water, a scraping mechanism for scraping up and removing dust trapped on the screen from below to above, and provided on an upper side of the screen. In a dust removing device provided with a dust discharge port for discharging dust, a repelling mechanism for applying pressure to the scraping mechanism for scraping dust up to the dust discharge port is provided.

In this means, since the dusting mechanism presses the dust against the screen by the pressure of the resilient mechanism, the dust scraping mechanism,
Extraction from between the screens is prevented.

According to a second aspect of the present invention, in the dust removing apparatus of the first aspect, the resilient mechanism continuously applies pressure to the scraping by the scraping mechanism.

In this means, dust is continuously pressed against the screen.

According to a third aspect of the present invention, in the dust removal apparatus of the first aspect, the resilient mechanism presses a rotatable part of the scraping mechanism.

In this means, the dust is pressed against the screen by a part of the rotating scraping mechanism.

According to a fourth aspect of the present invention, in the dust removing apparatus according to the third aspect, the rotatable part of the scraping mechanism has a restricted rotation area.

In this means, the rotatably configured part of the scraping mechanism repels at the limit of the rotation range and jumps up dust.

According to a fifth aspect of the present invention, in the dust removing apparatus according to the fourth aspect, a part of the rotatable rotation area of the scraping mechanism is adjustable.

With this means, the jumping width of the dust is adjusted.

[0018]

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

This embodiment employs a structure including a machine frame 1, a screen 2, a scraping mechanism 3, and a dust discharge port 4, which are basic structures of the above-described conventional example.

The machine frame 1 is erected from the bottom of a pit or the like in which the flowing water W flows, and is formed in a gutter shape surrounded by a side wall 1a and a bottom wall 1b which are opened on the upstream side of the flowing water W. ing.

The screen 2 filters and captures dust mixed in the running water W. Wedge-shaped bars 2b are arranged at narrow intervals in a mounting frame 2a formed on four sides of a rectangle. . The mounting frame 2 a is fitted and mounted on the bottom wall 1 b of the machine frame 1.

The scraping mechanism 3 scrapes up and removes dust trapped on the screen 2, and is wrapped around an endless chain 3 a provided along the side wall 1 a of the machine frame 1 to rub the screen 2. 3b. The endless chain 3a is driven by a motor 3c supported on the upper part of the machine frame 1.

The dust outlet 4 is opened in the upper bottom wall 1b of the machine frame 1 adjacent to the screen 2. The dust outlet 4 is connected to a dust receiving chamber 5 for storing dust.

The scraping mechanism 3 includes a first repressing mechanism 6 and a second
And a repression mechanism 7.

As shown in detail in FIG. 3, the first resilient mechanism 6 is disposed on the moving surface of the scraping mechanism 3 on the bottom wall 1b side of the machine frame 1 between the endless chains 3a. Press frame 6a that presses the rake 3b toward the screen 2
A coil spring 6b for applying a pressing force to the pressing frame 6a; a column 6c fitted with the coil spring 6b for guiding the pressing movement of the pressing frame 6a; and a support bar for supporting the column 6c to the side wall 1a of the machine frame 1. 6d.
The pressing frame 6 a is provided from the upper portion of the screen 2 to the dust outlet 4.

As shown in detail in FIG. 4, the second repressing mechanism 7 is formed integrally with the rake 3b of the scraping mechanism 3, and rotates along the scraping direction on the shaft 3d. The rake 3b is formed of a torsion coil spring that imparts rotational elasticity to the tip 3e of the rake 3b. Note that a bolt 3f with a nut is attached to the rake 3b. The bolt 3f is penetrated by the tip portion 3e, and regulates the rotation range of the tip portion 3e so as to be adjustable together with the rake 3b.

According to this embodiment, similarly to the above-described conventional example, the dust mixed in the flowing water W and flowing sequentially is surely captured by the screen 2 and continuously scraped and removed by the scraping mechanism 3. Can be. The removed dust is collected from the dust outlet 4 into the dust receiving chamber 5.

In the removal of dust, the first rake mechanism 6 causes the entire rake 3b of the scraping mechanism 3 to move to the screen 2.
Continuously pressed to the side. Therefore, pressure is applied to the entire stroke of the rake 3b of the scraping mechanism 3 and the dust is firmly held between the rake 3b of the scraping mechanism 3 and the screen 2 to be scraped. Become. As a result, the dust is prevented from being pulled out from between the scraping mechanism 3 and the screen 2, and the dust removal efficiency is increased.

The second resilient mechanism 7 rotates the tip portion 3e of the scraping mechanism 3 due to the resistance of the scraping, thereby causing the tip portion 3e to rotate.
It allows e to recede to the opposite side in the direction in which the dust is lifted (the state shown by the two-dot chain line in FIG. 4), and functions so as not to damage the dust by applying unnecessary pressure. Therefore, it is possible to prevent the dust from being damaged and transmitting through the screen 2.
During this time, since the dust is firmly held between the rake 3b (tip portion 3e) of the scraping mechanism 3 and the screen 2, the dust is prevented from being extracted from between the scraping mechanism 3 and the screen 2. Is done.

Further, the tip portion 3 of the swiveled scraping mechanism 3
When e comes into contact with the rake 3b, the tip portion 3e is repelled by the scraping drive force and jumps up the dust. Therefore, dust caught between the screens 2 and dust adhered to the screens 2 can be reliably scraped up. The jumping width of the dust can be freely adjusted by the bolt 3f with the nut of the scraping mechanism 3 according to the material of the dust and the like.

As described above, in addition to the illustrated embodiment, a configuration in which only one of the first resilient mechanism 6 and the second resilient mechanism 7 is provided is also possible.

[0032]

As described above, in the dust removing apparatus according to the present invention, since the dusting mechanism presses the dust against the screen by the pressure of the resilient mechanism, the dust is prevented from being extracted from between the scraping mechanism and the screen. Has an effect. Also, due to this effect,
The effect of increasing the dust removal efficiency is produced.

Further, the dust is continuously pressed against the screen, so that the dust can be more reliably prevented from being removed from the space between the screen and the scraping mechanism.

Furthermore, since the scraping mechanism does not rotate and apply unnecessary pressure to the dust and is not damaged, the dust is damaged at the time of scraping and penetrates the screen. There is an effect that can be prevented.

Further, since a part of the scraping mechanism is repelled at the rotation limit and dust is jumped up, it is possible to reliably scrape dust caught in the screen and dust adhered to the screen. There is an effect that can be raised.

Further, since the jumping width of the dust by the scraping mechanism can be adjusted according to the material of the dust and the like, the dust can be more reliably scraped.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a dust remover according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is an enlarged view of a main part of FIG. 1;

FIG. 4 is an enlarged view of another main part of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 2 Screen 3 Scraping mechanism 4 Dust discharge port 6 Resilient mechanism (first) 7 Resilient mechanism (second)

Claims (5)

[Claims] 1. A screen for catching dust mixed in running water, a scraping mechanism for scraping up and removing dust trapped on the screen from below to above, and a dust provided on an upper side of the screen for discharging dust. In a dust removing device having a discharge port,
A dust removing device, further comprising an elastic force mechanism for applying pressure to the scraping mechanism that scrapes dust to a dust outlet. 2. The dust removing apparatus according to claim 1, wherein the resilient pressure mechanism continuously applies pressure to the scraping by the scraping mechanism. 3. The dust removing device according to claim 1, wherein the resilient mechanism presses a rotatable part of the scraping mechanism. 4. The dust removing apparatus according to claim 3, wherein a part of the scraping mechanism that is rotatable has a restricted rotation area. 5. The dust removing apparatus according to claim 4, wherein a part of the rotatable rotation area of the scraping mechanism is adjustable.