JPH036654Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is installed in the middle of a waterway of water treatment equipment such as water supply and sewage, and scrapes up the dust mixed in the flowing water flowing through the waterway. Regarding the dust removal machine.

[Prior Art] Generally, a dust remover installed in the middle of a waterway in a water treatment facility for water supply or sewage causes dust mixed in flowing water to adhere to a grid-shaped dust removal screen installed in the waterway. By bringing the rake into contact with the dust removal screen and raising it, the dust adhering to the dust removal screen is raked up and removed.

By the way, in the above-mentioned dust remover, it is necessary for the rake to come into contact with the dust removal screen only when the rake is rising, and conventionally, in order to satisfy the above conditions, a fourth
It is constructed as shown in the figure and FIG. The dust remover A shown in the figure has a rake that moves up and down using a pin rack mechanism, and is composed of a dust removal screen 1, a guide rail 2, and a rake device 3. The dust removal screen 1 is formed by forming long flat steel plates 4 into a lattice shape, and is installed in the middle of a waterway to remove dust from flowing water flowing through the waterway. Further, the guide rails 2 are provided near both side edges of the dust removal screen 1. As shown in FIG. 5, pin racks 5 are provided on mutually facing surfaces of the guide rails 2 along the longitudinal direction, and guide grooves 6 are provided around the pin racks 5.
is formed. The guide groove 6 connects the lower ends of two grooves 7 and 8 formed parallel to each other on both sides of the pin rack 5 by curving it along the lower end of the pin rack 5, and connects the outer side of the pin rack 5 with respect to the dust removal screen 1. The upper end of the groove 7 located on the inner side of the pin rack 5 is formed to reach the upper end of the guide rail 2, and the upper end of the groove 8 located on the inside of the pin rack 5 is curved along the upper end of the pin rack 5 to connect with the outer groove 7. It has a structure in which a gate 9 is attached to the top. Here, the gate 9 is biased to close the groove 8 located on the inside of the pin rack 5 in the normal state, and when a force resisting this biasing force acts, the gate 9 closes the groove 7 located on the outside of the pin rack 5. It is becoming more and more obstructed. On the other hand, the rake device 3 has a rake 11 attached to the lower end of the rake frame 10 that comes into contact with the dust removal screen 1 to scrape up the dust adhering to the dust removal screen 1, and has the guide grooves at the upper ends of both sides of the rake frame 10. A main guide roller 12 is attached to the main guide roller 12 which engages with the pin rack 6 and moves, and a pinion 14 which engages with the pin rack 5 and is rotated by the drive device 13 is attached to the intermediate portion of both sides of the rake frame 10. An auxiliary guide roller 15 is attached to the outside so that the axis of the pinion 14 reaches the pinion 14, and the sub-guide roller 15 moves while engaging with the guide groove 6.
Here, the main guide roller 12 is the rake device 3.
When the pin rack 5 is raised and lowered, it reciprocates up and down in the groove 7 located outside the pin rack 5. On the other hand, as the pinion 14 meshes with the pin rack 5 and moves around the pin rack 5, the auxiliary guide roller 15 descends in the groove 7 located outside the pin rack 5 and is positioned inside the pin rack 5. It is designed to rise within the groove 8. When the sub-guide roller 15 is engaged with the groove 7 located on the outside of the pin rack 5, the rake 11
is now separated from the dust removal screen 1,
Further, when the sub-guide roller 15 is engaged with the inner groove 8 of the pin rack 5, the rake 11 is brought into contact with the dust removal screen 1.

The dust remover A configured as described above lowers the rake device 3 with the rake 11 separated from the dust removal screen 1 by rotating the pinion 14 in a predetermined direction, and then lowers the rake device 3 to the lowest end. At this time, the rake 11 can be automatically brought into contact with the dust removal screen 1, and this state can be maintained to raise the rake device 3.

[Problem that the invention attempts to solve]

However, with the above-mentioned dust removal screen, the rake cannot be brought into contact with the dust removal screen and raised unless the rake device is lowered to the lowest end of its movement range. This caused problems such as the inability to work efficiently.

[Means to solve the problem]

In order to solve the above-mentioned problems, the dust remover according to this invention is provided with a sliding part that has two stopping positions in the middle of the guide rail and slides in the direction of cutting the guide rail. A continuous groove connecting the guide grooves formed above and below the slide part at one stop position with the slide part in between, and two grooves formed above the slide part at the other stop position are connected to each other. It has a structure in which a communication groove is formed.

[Effect]

With the means described above, the dust remover according to this invention slides the slide part and connects the two grooves formed above the slide part with the communication groove formed in the slide part. Since the rake device can be raised from the slide portion with the rake in contact with the dust removal screen, efficient work can be performed depending on the water level of the running water in the waterway.

〔Example〕

Hereinafter, one embodiment of this invention will be described in detail with reference to FIGS. 1 to 3.

In addition, in FIGS. 1 to 3, the same members as those shown in FIGS. 4 and 5 are designated by the same reference numerals, and detailed explanation thereof will be omitted.

What is shown in Figure 1 is a dust remover B based on this invention.
The structure other than the guide rail 16 is the same as the conventional dust remover A shown in FIGS. 4 and 5 described above. The guide rail 16 has a guide groove 6 and a pin rack 5 cut in the middle thereof, and a slide groove 17 is formed by protruding in the cutting direction, and the guide groove 6 and pin rack 5 are cut inside the slide groove 17. A plate-shaped sliding portion 18 that slides in the direction of movement is provided. The slide portion 18 has two stop positions, and the surface thereof has a continuous groove that connects the guide groove 6 and the pin rack 5 formed above and below the slide portion 18 at one stop position. A communication groove 21 that connects the groove 19 and the continuous pin rack 20 with the two grooves 7 and 8 formed above the slide portion 18 at the other stop position, and a pin rack end portion 22 that connects to the pin rack 5 are formed. There is. On the other hand, an engaging portion 24 is formed on the back surface of the slide portion 18, as shown in FIG. 3, which engages with a hook-shaped support portion 23 formed on the bottom surface of the slide groove 17. The slide portion 18 is connected to a drive device 2 installed on the top of a lid 25 provided in the waterway.
6 via a connecting rod 27 and a screw rod 28, and is configured to slide when the drive device 26 is activated.

Next, the operation of the apparatus configured as described above will be explained.

First, when the water level of the flowing water in the waterway is low, dust adheres to the relatively low position of the dust removal screen 1, so the slide portion 1 of the guide rail 16
8 is connected to the upper and lower guide grooves 6 of the slide portion 18 by continuous grooves 19 and continuous pin racks 20.
and pin rack 5 are stopped at consecutive positions.
In this state, the rake device 3 descends to the lowest end of the guide rail 16, and then the rake 11 comes into contact with the dust removal screen 1 and rises to perform a raking operation from the lowest end of the dust removal screen 1.

Further, when the water level in the waterway is high, since there is no dust attached to the lower part of the dust removal screen 1, the slide part 18 is connected to the upper grooves 7 and 8 of the slide part 17 by the connecting groove 21. At the same time, the pin rack terminal portion 22 is stopped at a position where it is connected to the pin rack 5. In this state, the rake device 3 descends to the slide portion 17, and then
In order for the rake 11 to come into contact with the dust removal screen 1 and rise, a rake operation is performed from the middle part of the dust removal screen 1.

In addition, in the above embodiment, one slide portion 18 was provided on each guide rail 16, but
It is not limited to this, and may be provided at multiple locations as necessary. Furthermore, although the slide portion 18 is slid by the driving device 26, the present invention is not limited thereto, and the slide portion 18 may be slid by, for example, a cylinder or the like.

[Effect of idea]

As mentioned above, the dust remover according to this invention has two stopping positions in the middle part of the guide rail, a sliding part that slides in the direction of cutting the guide rail, and one stopping position in the sliding part. A continuous groove that connects the guide grooves formed above and below with the slide part in between, and a connecting groove that connects the two grooves formed above the slide part at the other stop position. Therefore, the rake device can be raised from the lowest end of the guide rail or from the slide portion. Therefore, the raking operation can be performed from the lowermost end or the middle part of the dust removal screen depending on the water level of the flowing water in the waterway, so there is an advantage that the work can be carried out efficiently.

[Brief explanation of the drawing]

Figures 1 to 3 all show one embodiment of this invention, in which Figure 1 is a configuration diagram of a dust remover according to this invention, and Figure 2 is a configuration of a slide section provided on a guide rail. Figure 3 is a cross-sectional view taken along the - line shown in Figure 2, Figures 4 and 5 show a conventional dust remover, Figure 4 is a front view, and Figure 5 is a partial view. Shown in Figure 4 with omitted -
It is an arrow view along a line. B...Dust remover, 1...Dust removal screen, 3...
Rake device, 6... Guide groove, 7, 8... Groove, 1
1... Rake, 12... Main guide roller, 15...
... Sub-guide roller, 16 ... Guide rail, 18
...Sliding portion, 19...Continuous groove, 21...Communication groove.

Claims (1)

[Scope of utility model registration request] A lattice-shaped dust removal screen installed in a waterway to remove dust from the flowing water flowing through the waterway, and two grooves erected along both side edges of this dust removal screen and formed along the longitudinal direction. It has a guide rail in which a substantially loop-shaped guide groove is formed by connecting the lower ends thereof, and two guide rollers that move up and down along this guide rail and are provided on both sides with a predetermined distance from each other. A rake device comprising a rake device in which a guide roller formed at the bottom moves within the loop-shaped guide groove, and only when rising, the rake comes into contact with the dust removal screen to scrape up dust adhering to the dust removal screen. A slide part is provided in the middle part of the guide rail and has two stop positions and slides in the direction of cutting the guide rail, and the slide part is provided with a slide part that sandwiches the slide part at one stop position. A dust removal device characterized in that a continuous groove that connects the guide grooves formed at the upper and lower sides of the sliding part is formed, and a communication groove that connects the two grooves formed above the slide part at the other stop position. Machine.