JPS5913611B2 - dust remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for scraping and removing solid matter trapped in a dust removal grid provided in a waterway, and more particularly to a rocking stabilization mechanism for a rocking rake.

As shown in FIGS. 1 and 2, the conventional improved waterway dust remover is provided with a dust removal grid 2 that crosses the waterway 1 and is slightly inclined, and has an upward stroke on both sides of the waterway 1 to remove dust. Lattice 2
A pair of endless chinos 3 are rotatably provided along the upstream side of the machine.

An arm 5 with one end projecting forward is provided at both ends of the rake 4 that is to scrape the dust removal grid 2, the projecting end of the arm 5 is rotatably fixed to the chino 3, and a guide roller 6 is provided at the rear thereof. .

A rail 7.8 on which the guide roller 6 runs is provided for the ascending stroke and descending stroke of the chino 3.

The rake 4, which rotates together with the cheno 3, is guided by the rail 7 via the arm 5 and roller 6 in the upward stroke to rake up the solid matter caught on the dust removal grate 2, turns over in the upper direction, and in the downward stroke The rake 4 is improved so that when it descends downward guided by the rail 8 and turns over at the bottom of the waterway 1, the rake 4 swings to freely engage with coarse foreign matter staying at the bottom.

However, the drawback remains that during heavy rain, the increased water force causes the rake 4 to overturn the vertical position and fall downstream, and rise along the dust removal grid 2 in the fallen position.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide a dust remover having a rake return mechanism that allows the rake to return to the raking position during the upward stroke, no matter how large the rake swings at the bottom of the waterway.

The purpose of this invention is to provide a protrusion on which the arm of the rake should come into contact with the cheno, so that the arm of the rake, which swings and enters the waterway bottom, is oriented so that it can return to its original position by the weight of the rake. They are trying to guide them through Cheno.

An embodiment of this invention will be explained based on FIGS. 3 and 4.

In the figures, parts that are the same as those in FIGS. 1 and 2 are designated by the same reference numerals.

Arms 5 that can protrude forward are fixed to both ends of the rake 4,
A pin 9 directed outward is fixed to the protruding end of the arm 5.

The endless rotating chino 3 has a bush 10 that passes through the link.
is fixed, and the pin 9 is rotatably fitted into the bush 10 to pivotally support the arm 5.

A guide roller 11 is rotatably attached to the rear end of the arm 5 via a short shaft 12 facing outward.

A contact piece 14 to be engaged with the connecting pin 13 of the rotating chino 3 is projected from the outer surface of the arm 5, and the position of the contact piece 14 is set relative to the line connecting the center of the pin 9 and the center of the short shaft 12. rake 4
Provided unevenly on the side opposite to the blade.

A rail 7.8 is provided on which the guide roller 11 runs along the ascending stroke and descending stroke of the rotary chino 3.

The operation of the above configuration will be described next.

The actions of the chino 3 and the rake 4 in the ascending stroke, upper reversal, and descending stroke are the same as before.

When the arm 5 is turned over at the bottom of the water channel 1, the contact piece 14 of the arm 5, which can be swung by the force of the water, engages with the connecting pin 13 in front of the pivot pin 9.

The connecting pin 13, together with the link through which the bushing 10 can pass, reverses the bottom of the water channel 1 and pushes the arm 5 back in the return direction via the contact piece 14, and in the latter half of the reversal, the direction of swing of the arm is reversed.

The arm 5 whose swing direction has been reversed returns to its original position due to its own weight.

If the size of the contact piece 14 that is unevenly distributed on the opposite side of the rake blade is increased, the forward swing angle will be reduced, and the bottom of the water channel will be scratched deeply when returning.

In this invention, the rake arm of the dust remover is made to protrude forward, the protruding end is rotatably connected to the rotating chino, and the abutting piece is provided near the protruding end of the arm to engage with the chino. By regulating the inversion angle of the rake, when the rake comes to the side facing the grid, the rake's own weight will cause the rake to fall back so that the tip of the arm is on top.

No matter how much water there is or how much sediment there is on the bottom of the pond, the rake will definitely return to its raking position.

[Brief explanation of the drawing]

Figure 1 is an overall conceptual diagram of the dust remover, Figure 2 is a diagram of a conventional example,
FIG. 3 is a diagram showing an embodiment of the present invention, and FIG. 4 is a detailed diagram of the arm. 4: Rake, 5: Arm, 13: Connecting pin, 14: Contact piece.

Claims (1)

[Scope of Claims] 1. A dust removal grid is provided that crosses the waterway, and a cheno is provided rotatably along both upstream sides of the dust removal grate, and a guide rail of a rake attached to this chino is arranged substantially along the outside of the cheno track. In the dust remover installed in the factory, an arm 5 protruding forward is fixed to the surface end of the rake 4, and a pin 9 is turned outside the protruding end of the arm 5 to rotatably connect the rotatable chino 3. A roller 11 that runs on the rail 7 is rotatably mounted on the outside of the rear part of the arm 5, and an abutment piece 14 is provided near the outside protruding end of the arm 5 on the opposite side of the protruding blade of the rake 4 so as to interfere with the chino 3. A dust remover characterized by: 2. The dust remover according to item 1 above, characterized in that a contact piece 14 is provided on the outside of the arm 5 so as to protrude so as to engage with the connecting pin 13 of the chino 3.