JP2537918Y2 - 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 one is
A cam (copying member) is lifted by a roller (drive unit) provided on the flight, and a drive arm to which the cam is attached is lifted. With this operation, the weir member (float) provided in the fixed trough descends to attract scum on the water surface together with water into the trough. On the other hand, when the roller passes over the cam, the drive arm is lowered by the weight of the cam, and the weir member is lifted above the water surface by raising the other interlocking arm with the drive arm, so that the attraction of the scum is stopped. ing.

[Problems to be solved by the invention]

By the way, in the conventional device, since the drive arm and the interlocking arm are single, even when the scum is not accumulated to a large extent, the weir member moves up and down and wastefully attracts water. The present invention has been made to solve such a problem, and the subject thereof is to prevent unnecessary attraction of water and to temporarily stop the dehydrating device when the amount of scum is small, and to use each device. The problem is to reduce the occurrence of troubles.

[Means for solving the problem]

In order to solve the above-described problem, the present invention provides a driving unit that moves together with a flight circulated in a pond, an arm support shaft mounted on the pond, and a base supported by the arm support shaft to be rotatable. A drive arm having a cam at its distal end that can be moved up and down by the movement of the drive unit, and an interlocking arm having a base supported by the arm support shaft and having a distal end extending in a direction different from the drive arm. And a trough that is fixedly provided in the pond so that it is below the tip side of the interlocking arm and the front part is below the water surface, and a water surface that is provided on the front side of the trough and What is claimed is: 1. A scum processing apparatus comprising: a weir member that moves up and down; and an interlocking mechanism that connects the dam member and the interlocking arm, wherein the scum processing device is supported on one arm side between the drive arm and the interlocking arm. The other arm is provided with a detachable piece which can be disengaged by the movement. When the detachable piece is engaged with the other arm, the interlocking arm moves in conjunction with the drive arm, and the detachable piece moves on the other arm. When the arm is disengaged from the arm, only the drive arm moves and the interlocking arm stops.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIGS. 1 and 2 show an embodiment of the present invention.
a is a side wall which is the longer side of the rectangle of the pond 1, and 1b is a shorter end wall adjacent thereto. The sedimentation basins 1 are arranged in a number of rows and columns as is well known. Sewage is fed into the pond 1, and the sediment is scraped in one direction at the bottom below the flights 4 circulatingly driven by the driven chain 3 and is discharged out of the pond. Two chains 3 are arranged on the left and right, and these chains 3 are circulated by sprockets 6 attached to a plurality of rotating shafts 5 mounted between the side walls 1a. In the drawing, the upper part is shown. On the other hand, floating scum gradually accumulates on the water surface 7 and is sent in one direction by the movement of the flights 4. Each side wall 1a is provided with a bearing body 8, which faces each other. The arm support shaft 9 is rotatably supported by the two bearing members 8. The arm support shaft 9 is an integral shaft having a long shaft portion 9a at the center and short shaft portions 9b at both ends thereof. As shown in detail in FIGS. 3 and 4, a rotating cylinder 11 rotatable via a bush 10 is provided on the outer periphery of one shaft portion 9b. A drive arm 12 extends from the rotary cylinder 11 in a direction opposite to the direction in which the chain 3 advances. This drive arm 12 is one, and is arranged near one of the side walls 1a. A cam 13 is attached to the tip of the arm 12. As shown in FIG. 1, the cam 13 has a recess 13 between two projections 13a and 13b at the bottom.
c is formed. The cam 13 is lifted by a roller 14 arranged on the side of the flight 4. In particular, when the roller 14 reaches the protrusion 13 a, it is lifted in the first stage, and when the roller 14 reaches the recess 13 c, it is lowered once. When 14 reaches the protruding portion 13b, it is lifted in two stages so as to be lifted again.
The drive arm 12 is reliably guided up and down by a stopper guide 15 with a long hole provided on the pond 1 without lateral swing, and the lower limit when the arm 12 returns is made constant. You. The movement of the drive arm 12 that moves up and down is transmitted to the interlocking arm 16 when the amount of scum is large, and the movement of the interlocking arm 1 when the amount of scum is small.
6 is stopped, and only the drive arm 12 moves. That is, two opposed engaging pieces 1 are provided on the outer periphery of the rotating cylinder 11 which is prevented from swinging by the side stopper 17.
8 are protruding. On the other side of the rotary cylinder 11 of the arm support shaft 9, a support cylinder 19 is provided so as to rotate together, and on the outer periphery of the support cylinder 19, two opposing support protrusions 20 are provided. A shaft 21 is passed through the support projection 20,
A reciprocally rotatable engagement / disengagement piece 22 is supported via the shaft 21. The engaging and disengaging piece 22 is rotated forward and backward by inserting a tool into the engaging portion 21a of the shaft 21 and rotating. When the engaging and disengaging piece 22 is rotated to one side, the engaging and disengaging piece 18 is engaged.
It comes off from the engagement piece 18. When engaged,
When the rotational movement from the drive arm 12 is transmitted to the interlocking arm 16 and the engagement is released, only the drive arm 12 rotates without permission and the interlocking arm 16 does not rotate. This is the clutch mechanism. Reference numeral 23 denotes a fixing bolt, and reference numeral 24 denotes a tool guide provided on a side surface of the support projection 20. Reference numeral 25 denotes a manual arm set up on the arm support shaft 9, which can be freely operated back and forth from above the side wall 1a. In this embodiment, the following mechanism is also configured, and will be described here. In other words, one of the two interlocking arms 16, 16 is largely extended toward the end wall 1b to form a projection 16a. This protrusion 16a
Is formed of an L-shaped channel material. A tube 27 projects horizontally from above the end wall 1b from above the end wall 1b via a handrail 26, and an L-shaped channel 28 further projects from the tip of the tube 27. The following mechanism is provided at the base of the channel 28. This mechanism has a function for preventing the arm 16 from being lowered when the interlock arm 16 stops without rotating and interlocking as described above, and a function for preventing a load from being applied when the manual arm 25 is operated. The spring mechanism 30. Same mechanism 30
5 and 6, a rectangular tube 31, a bottom plate 32 and an upper lid 33 are provided, and a groove 34 is provided in one side of the rectangular tube 31 in a vertical direction. Equiangular cylinder 31
A vertically movable rod 35 is inserted into the rod 35, and a vertically movable slider 36 is provided on the outer periphery of the rod 35. A lock handle 37 is inserted into the slider 36, and a spring 38 is provided between the slider 36 and the bottom plate 32. In order to prevent the interlocking arm 16 from lowering when stopped without rotating interlocking, the slider 36 is locked as shown in the drawing, so that the spring 38 works and the interlocking arm 16 lowers without permission. To prevent In order to prevent a load from being applied when the manual arm 25 is operated, the handle 37 is pushed up above the groove 34 so that no load is applied. The rod 3
5 and the projection 16a are connected by a nut 39. 7 and 8 show the movement of the weir member 40 according to the fluctuating water level of the water surface 7 and the movement of the weir member 40
Shows a water surface following mechanism 41 that raises and lowers the water surface. The moving mechanism 41 is provided at the tip of each of the two interlocking arms 16. That is, the interlocking arm 1
Reference numeral 6 denotes a square tube, and a pin 42 is passed through the tip of the arm 16 to rotatably support a case 43 that covers the arm 16 with the pin 42. A support plate 44 projects horizontally below the distal end of the interlocking arm 16, and a through hole 45 is provided in the support plate 44. A lower locking plate 47 is provided below the support plate 44 and can be adjusted forward and backward by bolts 46. The locking plate 47 has a locking hole 4 concentric with the through hole 45.
8 are provided. The edge 48a functions as a lock. On the other hand, an upper locking plate 49 is provided in the case 43, and a locking hole 50 is provided in the locking plate 49, and an edge 50a thereof serves as a locking function. A spring 51 is provided between the interlocking arm 16 and the case 43 as a compression type. A rod 52 is passed through the case 43 so as to pass through the locking holes 50 and 48. At this time, a large hole 53 is formed in the upper surface of the case 43, and the lower surface of the case 43 is open. At the upper end of the rod 52, a retaining member 54 is provided. The rod 52 extends downward, and the rod 5
The weir member 40 is pinned to the lower end of 2 and moves up and down with the water surface 7 as a boundary. This weir member 40
Is provided on the front side of a trough 55 fixedly provided in the pond, and the weir member 40 is attached to a front portion of the trough 55 via a rubber sheet 56. The water surface tracking mechanism 41 is in a state shown in FIG. 7 when it is in a water level tracking state. At this time, the interlocking arm 16 and the case 43 are both horizontal, and the locking holes 48 and 50 are vertically centered. This is because the case 43 is leveled by the stopper bolt 57 and the spring 51 is in a compressed state. The rod 52 does not engage with the locking holes 48 and 50, so that the dam member 40 can freely move up and down in accordance with the water surface 7. The rod 52 following the water level is
As the 6 is lowered, the case 43 is separated from the stopper bolt 57 and the case 51 is rotated counterclockwise due to the action of the spring 51. Then, the locking holes 48 and 50 are twisted, thereby lowering the rod 52 while locking the rod 52. When the rod 52 is lowered, the weir member 40 is also lowered, and is attracted into the trough 55 together with the scum water floating on the water surface 7. The amount of reduction is always constant regardless of the height of the water level. When the interlocking arm 16 is raised, the rod 52 is lifted while the rod 52 is locked in the locking holes 48 and 50, and the case 43 is leveled by the case 43 hitting the stopper bolt 57. Now, rod 5
The locked state of 2 is released and returned to the original state shown in FIG. This operation is repeated. As shown in FIG. 9, the rod 58 may be a rectangular bar when viewed from above, and holes 60 for stopping the retaining members 59, which are bolts, may be provided in a staggered arrangement. In this manner, the set interval of the retaining member 59 for preventing the rod 58 from falling can be reduced vertically. First
In FIG. 0 as well, a large hole 62 is drilled vertically through the interlocking arm 61 so that the bottom of the arm 61 hits the bolt 64 of the rod 63 to push down the rod 63, and the same configuration as described above may be adopted. it can. Here, since the hole 62 is largely opened, the play is large, but in order to reduce the play,
A horizontal axis 65 is passed through the interlocking arm 61 and a guide 66 guided by the horizontal axis 65 through the hole 62 on the side of the rod 63.
May be provided. FIG. 11 shows another embodiment of the clutch mechanism. That is, the interlocking arm 67
An engagement piece 70 having a U-shaped groove 69 is provided on a rotary cylinder 68 attached to the support cylinder 71, and a support projection 72 is also provided on the outer periphery of the support cylinder 71. An L-shaped engaging and disengaging piece 73 whose tip is bent is detachably engaged with the groove of the engaging piece 70. This may be used.

[Effect of the invention]

This invention is as described above. Accordingly, it is possible to prevent wasteful attraction of water and to temporarily stop the dehydrating device when there is little scum and to reduce the occurrence of trouble in each device. it can.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a plan view of a clutch mechanism, FIG. 4 is a side sectional view thereof, and FIG. FIG. 6 is a cross-sectional view thereof, FIG. 6 is a cross-sectional view thereof, FIG. 7 is a cross-sectional view of the water level following mechanism at the time of following the water level, FIG.
9 is a side view showing a modification of the rod, FIG. 10 is a side view showing an additional embodiment, and FIG. 11 is a perspective view showing another embodiment of the clutch mechanism. 1 ... sedimentation area 3 ... chain 4 ... flight 7 ... water surface
9: arm support shaft 12: drive arm 13: cam 1
6 ... Interlocking arm 18 ... Engagement piece 20 ... Support projection piece 22
… Locking pieces

Claims (1)

(57) [Scope of request for utility model registration] 1. A drive unit that moves with a flight circulating in a pond, an arm support shaft mounted on the pond,
A drive arm having a base supported by the arm support shaft and rotatable, and having a cam at the distal end side that can be moved up and down by the movement of the drive unit; and a distal end having a base supported by the arm support shaft. A movement arm whose side extends in a direction different from that of the drive arm; and a trough fixedly provided in the pond so as to be below the distal end side of the interlocking arm and having a front portion below the water surface. And a weir member provided on the front side of the trough and moving up and down on the water surface, and an interlock mechanism connecting the weir member and the interlock arm, wherein the drive arm and the interlock arm Between the arm and the other arm is provided and is capable of engaging and disengaging the other arm by reciprocating movement, and the engaging arm is engaged with the other arm, the interlocking arm is provided. Drive Motion in conjunction with the over arm, scum processing apparatus only drive arm by engaging and disengaging piece is out of the other arm, characterized in that the motion link arm is adapted to stop.