JPS6038733Y2 - screen dust remover - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a screen dust remover that makes it easy to remove extremely flexible objects, such as plastic bags, from the screen bar.

Generally, a screen is installed in a river to prevent the flow of various types of garbage, and a dust remover is installed to remove the garbage attached to the screen. The conventional screen dust remover was constructed as shown in Figure 3.

That is, a plurality of plate-shaped screen bars a are arranged vertically at regular intervals, and a recessed portion surrounding the upstream side of the screen bar a is formed on the upstream side of the screen bar a. The rake C is arranged so that it can move up and down,
By moving the rake C up and down, the dust blocked by the screen bar a is removed.

However, with this conventional dust remover, large or solid dust can be removed without any problems;
For example, when very flexible garbage such as a plastic bag flows and is blocked by the screen bar a, such garbage usually sticks to the screen bar a and cannot be removed.

Therefore, in this invention, a plurality of approximately Y-shaped screen bars are installed vertically at regular intervals with the Y-shaped groove facing upstream, and on the upstream side of the screen bar, A rake with a recess that surrounds the upstream side of the screen bar is arranged so as to be movable up and down.
The bottom surface of this rake engages with the groove of the screen bar,
A raking rake that works in conjunction with the rake is provided, so that even if such flexible dust adheres to the screen bar, the presence of the groove of the screen bar allows the groove to form a space, This was developed with the aim of providing a screen dust remover in which dust can be reliably removed by engaging a scraping rake in this space.

Next, an embodiment of the screen dust remover according to this invention will be described based on FIGS.
A plurality of grooves 2 are arranged vertically with the Y-shaped grooves 2 facing upstream at a constant interval.

Reference numeral 3 designates a plate-shaped rake disposed on the upstream side of the screen bar 1, and this rake 3 is formed with a recess 4 that surrounds the upstream side of the screen bar 1. 3 is configured to be vertically movable like the conventional one.

5 is a raking rake arranged on the lower surface of the rake 3;
This rake 5 engages with the groove 2 of the screen par 1.

In addition, 6 in the figure is a rotation axis.

In normal times, the rake 3 and the rake 5 are lowered to the lowest part of the screen par 1.

When dirt adheres to the screen par 1 and is to be removed, the rake 3 and scraping rake 5 are raised along the screen par 1 to remove it.

In this case, large or solid trash is removed by the rake 3, and flexible trash such as plastic bags is removed by the rake 5.

That is, since the tip of this rake rake 5 engages with the groove 2 of the screen par 1, even if the plastic bag gets stuck around the screen par 1, the tip of the rake rake 5 will not touch the screen par 1. Since it reaches the position where it reaches the back side of the plastic bag, it can be removed from the screener 1.

Further, when the garbage is raised in this manner, the rake 3 and the scraping rake 5 are reversed to the upstream side by the rotating shaft 6, and the garbage is transferred to a collection box (not shown) disposed above and lowered. That's fine.

Furthermore, when the rake 3 is moved up and down, the rake 3 may experience a large amount of resistance, so in order to avoid this, the rake 3 may be provided with a water passage hole 7.

As mentioned above, according to the screen dust remover according to this invention, the screen par is formed into a substantially Y-shape and is provided with a groove, and a scraping rake that engages with this groove is provided. This method has the effect that not only large or solid garbage but also flexible garbage such as plastic bags stuck to the screener can be effectively removed.

[Brief explanation of the drawing]

The drawings show one embodiment of the screen dust remover according to this invention. Fig. 1 is a side view of the main parts, Fig. 2 is a sectional view taken along line A-A, and Fig. 3 is a plan view showing a conventional example. be. 1 is a screen par, 2 is a groove, 3 is a rake, 4 is a recess, 5 is a rake, 6 is a rotating shaft, and 7 is a water hole.

Claims (1)

[Scope of utility model registration request] A plurality of approximately Y-shaped screen bars are provided vertically at regular intervals with the Y-shaped grooves facing upstream, and a plurality of screen bars are provided in the upstream direction of the screen bar. A rake having a concave portion surrounding the side thereof is disposed so as to be movable up and down, and a rake rake is disposed on the lower surface of the rake that engages with the groove of the screen bar and interlocks with the rake. screen dust remover.