JP2531089Y2 - Scum processing device - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a scum processing device.

[Conventional technology]

A large amount of scum accumulates on the surface of the sedimentation basin, and various devices are used to remove it.

One of them is a scum processing device proposed by the present applicant. This device has an arm support shaft, and rotatably supports a drive arm such that the intermediate portion of the arm is supported by the support shaft. The drive arm is provided with a copying member on the tip side which is kicked up by a roller (kick-up portion) provided on a flight circulated in the pond. In the pond behind the arm, a trough-shaped trough is provided between the pond side walls so that the longitudinal direction thereof is oriented. The trough has a front entrance that is lower than the surface of the water. A rubber plate is provided in the trough, and a weir member (float) is provided by the plate so as to move up and down on the water surface. This weir member and the rear side of the drive arm are connected by a suspension member.

[Problems to be solved by the invention]

By the way, in the conventional scum processing apparatus, when the roller kicks up the copying member, the tip side of the drive arm is lifted and the rear side is lowered, and when the rear side is lowered, the weir member is connected via the hanging member. It falls below the surface of the water. Then, as the kick-up portion passes through the copying member, the distal end side of the drive arm is lowered and returned, and the rear side is lifted. As a result, the weir member lifts up and floats on the water surface to stop inducing scum.

In the current scum processing device that performs such an operation, the drive arm has one tip, but the rear end has two projections protruding from two places of the arm support shaft.
Not only was the structure very large, but transportation was also a problem, leading to higher costs.

This inventor has been made to solve such a problem, and the subject is to simplify the structure and to make it convenient to transport and to reduce the cost. It is in.

[Means for solving the problem]

In order to solve the above-mentioned problem, the present invention is directed to a kick-up unit which moves together with a flight circulated in a pond, an arm support shaft provided in the pond, and front and rear arm portions. A drive arm rotatably mounted on the drive arm, a copying member provided at the tip of the drive arm and being kicked up by the kick-up section, and a long gutter-shaped one facing the pond. A trough that is fixed between the side walls in the longitudinal direction and has a front portion that serves as an inlet for inviting scum on the water surface, and in the internal space of the trough so as to move up and down on the water surface A weir member supported to be swingable, a rotation shaft provided below the weir member in the trough and rotatably provided so that the axis is oriented in the longitudinal direction of the trough, and an outer periphery of the rotation shaft. Rolled up A transmission member by the link chain or the like which is coupled to the rear portion of Rutotomoni the drive arm, the front end projects from the outer periphery of said rotary shaft and a cam member to push up the dam member.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment.

1 to 3 show an embodiment of the present invention. In this embodiment, the sedimentation basin 1 has a rectangular plane, and the drawing shows a side wall 1a which is the longer side of the rectangle of the pond 1. The sedimentation basins 1 are arranged in large numbers at least in parallel. Sewage is sent into pond 1,
The sediment is scraped in one direction at the bottom by a flight 3... Driven by a chain 2 along a guide rail and is removed. On the other hand, floating scum gradually accumulates on the water surface 4 and is sent in one direction by the movement of the flights 3.

A bearing 5 is attached to a position above the water surface 4 of one of the side walls 1a, and an arm support shaft 6 is provided on the bearing 5 so as to protrude. A drive arm 7 is rotatably supported by the protruding portion of the support shaft 6.
The drive arm 7 is merely one upper arm, and an intermediate portion thereof is supported by the arm support shaft 6. 7a is the tip side,
7b is on the back. A copying member 9 is attached to the distal end side 7a. The copying member 9 includes front and rear protrusions 9a, 9b.
It has a weight that is a cam plate having a concave portion 9c formed therebetween. A roller (kick-up unit) 10 provided at the end of the flight 3 hits the protrusions 9a and 9b, and performs a kick-up operation.

On the other hand, passage pipes 12, 12 are inserted and fixed to the side walls 1a, 1a of the pond. A flange 13 is fixed to the end of each passage 12, and a trough 14 is fixed between the flanges 13,13. The trough 14 has a trough-like shape having a square cross section, and has a front portion formed with an inlet 15 lower than the water surface 4. The trough 14 has flanges 16 at both ends.
The end of the trough 14 is inserted and fixed therein, and the trough 14 is fixed by bolting the flange 16 to the flange 13. The trough 14 has a longitudinal shape, and its longitudinal direction is oriented in the direction opposite to the pond.
FIG. 3 shows one of the flanges 16, and a support plate 17 is fixed to the lower part of the opening by welding. The other flange 16
Similarly, the support plate is fixed. Fixed support shafts 18 protrude from the surface corresponding to the inside of each support plate 17,
A bush 20 is fitted in the bush 18 so as to face each other, and a cylindrical rotary shaft 21 is rotatably supported via the bush 20, 20. The rotating shaft 21 has its axis centered in the longitudinal direction of the trough 14, and has a remote end near one end thereof.
A chain hook 22 composed of a single plate is fixed in a protruding manner. The chain hook 22 is located below the rear side 7b of the drive arm 7, and a transmission member 23 is provided between the chain hook 22 and the rear side 7b. The transmission member 23 includes a link chain 23a and a rod 23b,
The link chain 23a has one end fixed to the chain hook 22 and is wound from below to above, and the rod 23b is connected to the upper end thereof and connected to the drive arm 7 so as to be vertically adjustable. The space where the rod 23b passes is left as a space.

That is, a support member which is a rubber plate is provided inside the trough 14.
The support member 25 is provided with a weir member (float) 26 at its upper end so that the weir member 26 can swing up and down. The end is shortened because the transmission member 23 is passed therethrough. Side plates 27 are provided at both ends of the weir member 26, and the flange 16
A seal 29 is also provided between the front plate 28 having one end fixed to the side plate 27 and the side plate 27 to prevent scum and water from entering.

Further, a cam member 30 protrudes in a rod shape at two locations on the outer periphery of the rotating shaft 21 which are separated in the longitudinal direction. This cam member
30 is configured to contact rollers 31 provided on the back surface of the weir member 26 from below.

[Action]

In a normal state, the weight of the copying member 9 overcomes the other weight, and the copying member 9 and the drive arm 7 are horizontal and the weir member 26 floats on the water surface as shown in FIGS. This state is maintained by a stopper (not shown). Then, when the roller 10 kicks up the copying member 9, the drive arm 7 is rotated so as to lift the front end 7 a and lower the rear side 7 b. As a result, the transmission member 23 operates in the loosening direction, and since the weir member 26 is under water pressure, the weir member 26 is pushed down below the water surface. At this time, the roller 31 of the weir member 26 pushes down the cam member 30 and the rotating shaft 21
To rotate. When the weir member 26 is lowered, scum and a small amount of water flow into the trough 14 and are discharged to the outside through a pipe (not shown). Roller 10
Passes through the copying member 9, the weight of the copying member 9 acts. As a result, the rear side 7b of the drive arm 7 is lifted, and the transmission member 23 is tightened to rotate the rotary shaft 21 in the opposite direction, and the cam member 30 provided on the rotary shaft 21 is The weir member 26 is pushed up and returned via 31. This movement is stopped by the stopper and returns to the state shown in FIGS.

FIG. 4 shows an additional embodiment. The water pressure applied to the weir member 26 is not always constant. The water pressure is high when the water level is high, and is low when the water level is low. Therefore, when the water pressure is high, the lowering operation of the weir member 26 may be abrupt. As a countermeasure, not only the transmission member 23 is coupled to the drive arm 7 but also the trough The control weight 36 extends to the front surface of the device 14 and is provided at the end thereof. In order to perform such a similar function, a balance mechanism including the weight 38 and the link 39 may be configured so as to urge the dam member 26 upward, as indicated by a virtual line in FIG.

The transmission member may be a normal chain, a wire, or a belt in addition to the link chain.

[Effect of the invention]

Since the present invention is configured as described above, it is structurally simplified and convenient for transportation,
Moreover, it leads to lower costs.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line II of FIG. 2 showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is an exploded perspective view showing a support structure for a rotating shaft, and FIG. FIG. 10 is a cross-sectional view showing another additional embodiment. 1 Pond, 3 Flight, 4 Water surface, 6 Arm support shaft, 7 Drive arm, 9 Copying member, 10 Roller (kick-up section), 14 Trough, 15 …… the entrance,
21 ... Rotating shaft, 23 ... Transmission member, 26 ... Weir member, 30 ...
Cam member

Claims (1)

(57) [Scope of request for utility model registration] 1. A kick-up unit which moves together with a flight circulated in a pond, an arm support shaft provided in the pond, and front and rear arm portions, and an intermediate point thereof is rotatably mounted on the arm support shaft. A drive arm, a copying member provided at the tip of the drive arm, and adapted to be kicked up by the kick-up section, and a long gutter-like shape, and a longitudinal direction between opposing side walls of the pond. A trough that is fixed and provided at the front of the trough and serves as an inlet for inviting scum on the water surface, and is supported to be swingable so as to move up and down on the water surface in the internal space of the trough. A weir member, a rotating shaft provided below the weir member in the trough and rotatably provided so that the axis thereof is oriented in the longitudinal direction of the trough, and wound around the outer periphery of the rotating shaft. Drive gear Scum processing apparatus and a cam member and the transmission member by the link chain or the like which is coupled to the rear portion, which the tip projects from the outer periphery of said rotary shaft to push up the dam member.