JP2565187Y2 - Scum removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a scum removing device. (Conventional technology) For example, in a circular sedimentation pond, while scraping a scum on the water surface with a scraper provided on an arm turning in the pond, it is caused to flow into a trough installed on an inner peripheral wall in the pond, The scum is removed outside the pond through the trough. [Problem to be Solved by the Invention] In the current scum removing device, the trough is made to freely float up and down by the arm, and the scum scraped by the scraper when it sinks is introduced into the opening of the trough. It was like. Such an ups and downs free type has a very complicated structure, leading to an increase in cost and a cause of trouble.
The present invention was made in order to solve such a problem. The purpose of the invention is to make it possible to reduce the cost while simplifying the structure.
An object of the present invention is to provide a scum removing device that prevents an operation trouble or the like from occurring. [Means for Solving the Problems] In order to solve the problems, the invention according to claim 1 is configured such that the substrate is fixed to the inner peripheral wall of the circular tank along the inner peripheral wall, A support frame is arranged in the direction of the center of the pond more than the substrate, and a tubular trough is provided rotatably back and forth around an axis horizontally provided coaxially with the substrate and the support frame. , This trough
The inflow port is open at the top, and the inflow port can swallow scum by rotating forward, and stop swallowing by returning to the backward direction.The forward rotation of the trough is a circular tank Along with the approach of the scum scraping scraper attached to the arm that pivots inside to the trough, it is configured to be performed in conjunction with the copying member, and at the outer periphery of the end portion on the inner peripheral wall side of the trough, A box-shaped support portion is provided protruding from the substrate toward the center of the pond, and the support portion is sealed so as to be relatively rotatable with the outer periphery of the trough end and communicated with the trough end. The scum is made to flow in, and a discharge tube is connected to the support portion in a communicating manner. According to a second aspect of the present invention, in the first aspect, an upper stay is connected to an upper portion of the support frame. According to a third aspect of the present invention, in the first or second aspect, the upper portion of the support portion is formed in a cylindrical shape. [Embodiment] Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiment. FIG. 1 to FIG. 6 show an embodiment thereof. 1 is a circular sedimentation basin and 2 shows the inner peripheral wall. At the center of the sedimentation basin 1, a turning drive means is provided, by which the arm 3 turns horizontally. At the bottom near the tip of the arm 3 is a water surface 4
A rubber plate-shaped scraper 5 for scraping the scum accumulated on the upper side in the direction of the arrow in FIG. 1 is attached so as to hang down and be deformed. At one or several places of the inner peripheral wall 2, a device main body of the scum removing device is fixedly installed. The apparatus main body can be assembled in advance as one unit body. At the inner end of the apparatus main body, there is provided a substrate 10 which is attached to the inner peripheral wall 2 with bolts 6... The upper end of the substrate 10 is located on the water surface 4 and most of the remaining substrate is disposed under the water surface 4. Have been. A support portion having a cylindrical base tube 11 having an upper portion and a rectangular box 12 having a lower portion protrudes integrally from the inside of the pond of the substrate 10. Base 11
Has a cylindrical shape in order to prevent the rubber plate scraper 5 from being damaged when passing over it. The lower part of the base cylinder 11 communicates with the box 12 through an opening, and the lower part of the box 12 is connected to a discharge cylinder 13 passed through the inner peripheral wall 2. The surface of the box 12 facing the inside of the pond is closed, but the surface of the base cylinder 11 facing the inside of the pond is open. A ring 14 is attached to the opening. A lower stay 15 protrudes from the surface of the box 12 facing the inside of the pond so as to face the center of the pond, and a support frame 16 stands on the tip of the stay 15. An L-shaped upper stay 17 is provided between the frame 16 and the upper surface of the base cylinder 11.
Are mounted with both ends mounted. Same upper stay 17
Is provided with a flat step 18 on which the operator can walk while riding. This step 18 may be angled so that the scraper 5 can pass easily. Water surface 4 of the substrate 10
A fixed shaft 19 having a horizontal axis protrudes from a position corresponding to the lower portion. The shaft 19 is provided with the inner end wall 2 of the trough 20.
1 is rotatably supported via a bearing 22. The inner end wall 21 is formed of a plate having a certain angle, and the other portion is open. The opening 23 allows the scum to be guided from the box 12 to the discharge tube 13. The other end of the trough 20 is rotatably supported by the support frame 16 via a rotary shaft 20 a having a horizontal axis and a bearing 24. The trough 20 has a cylindrical shape, and one end thereof is inserted so as to rotate in the base cylinder 11. In a portion of the trough 20 corresponding to the inside of the base cylinder 11, through holes 25 for guiding scum into the box 12 are provided.
Is formed in a notch shape, and is turned to the opening at the upper end of the box 12 by rotation. On the outer circumference of the trough 20,
Several seals 26 are provided, and the seal 26 comes into contact with the inner peripheral surface of the ring 14 of the base cylinder 11 to exert a sealing function. A large part of the trough 20 protruding from the base cylinder 11 is formed with an inflow port 27 which is opened in a rectangular shape when viewed from above. The inflow port 27 is a port for taking in scum, and usually faces upward, but by rotating the trough 20 in one direction, the opening edge of the port sinks below the water surface 4 to introduce scum on the water surface 4 together with water. It has become. Trough 2
A weight 28 is provided on one side of the outer periphery of the zero 0, and the weight 28 is for returning the trough 20 to the normal state. A stopper 29 is provided on the outer periphery of the trough 20 and the outer periphery of the base cylinder 11 to stop the trough 20 in the normal state when the trough 20 is rotated back. Further, a shaft 30 for transmitting a rotational force to the trough 20 protrudes from the end surface of the trough 20 on the distal end side. A rotary roller 31 is attached to the tip of the shaft 30 so as to freely rotate. The roller 31 is at the same height as the rotation shaft 20a. A copying member 35 to be described later rides on the roller 31. Since this mechanism does not require a separate power for holding down, this mechanism is also referred to as a so-called no-power. In some cases, another shaft 32 may be bent and protruded from the end surface of the trough 20 so as to be symmetrical with the shaft 30. A roller 33 may be provided at the tip of the shaft 32 so that the roller 33 is located on the inner side of the pond than the roller 31. This is for rotating the trough 20 in the opposite direction. The bent shape is used to prevent the turning side of a copying member or the like to be described later from hitting the shaft 32 when the roller 31 operates.
When attaching the roller 33, the stopper 2
9 need not be configured. This is because the trough 20 does not rotate in both directions. However, even in the case of rotating in both directions, a rotation returning means such as a weight is required. At a position slightly before the tip of the arm 3, a support bar 35 is provided so as to be horizontally bent again so as to correspond to the roller 31. Two adjusting members 36 are attached to the lower portion of the support bar 35. This copying member 37
Is dressed like a sled, and is 3
7a and 37c are low, and the middle part 37b in the length direction is slightly high. In the trough 20, in the normal state, as shown in FIG. Arm 3
Is rotating and scraping scum, and the copying member 3
7 can be put on the roller 31. When the front portion 37a of the copying member 37 rests on the roller 31, the shaft 30
The trough 20 is rotated forward through. This is done against the force of the weight 28. When the front portion 37a pushes down the roller 31, as shown in FIG.
7 sinks below the water surface 4. As a result, water is introduced into the inflow port 27, and the scum scraped by the scraper 5 follows and flows in.
When the front portion 37a rests on the roller 31, the trough 20 is rotated largely so as to allow a large scum to flow in initially. When the intermediate portion 37b rests on the roller 31, the trough 20 is slightly returned by the force of the weight 28 to slightly reduce the inflow amount, thereby increasing the flow velocity and drawing the scum following the trough. Rear 3
When the roller 7c rests on the roller 31, the trough 20 rotates again largely downward, and a relatively large scum is finally introduced into the inlet 27. When the copying member 37 passes through the roller 31, it is stopped by the weight 28. The introduced scum is rejected in the trough 20 or through the discharge tube 13. The other roller 33 is activated by providing another copying member 38 on the arm 3. The other copying member 38 functions after rotation of the trough 20. That is, the trough 20 is returned to the normal state.
Is rotated in the opposite direction by the other copying member 38 resting on the roller 33. Thereby, trough 2
0 allows scum gathering on the back side to flow in as well.
The other copying member 38 is attached to the illustrated arm 3, but may be attached to another arm. [Effects of the Invention] Since the invention is configured as described above, the structure can be simplified, the cost can be reduced, and operation troubles and the like do not occur.
In particular, in the present invention, since the base of the trough is surrounded by a box-shaped support and sealed between the trough and the drainage pipe, the drainage structure is very simple.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG.
FIG. 4 is a sectional view taken along the line IV in FIG. 2, and FIG. 5 and FIG. 6 are operation explanatory diagrams. DESCRIPTION OF SYMBOLS 1 ... Circular settling pond 2 ... Pond inner peripheral wall 3 ... Arm 4 ... Water surface 5 ... Scraper 10 ... Substrate 11, 12 ... Support part (base cylinder and box) 13 ... Drainage cylinder 17 ... Upper stay 19, 20a ... Shaft 20 ... Trough 26 ... seal 27 ... inlets 31, 33 ... rollers (pressed members) 37, 38 ... copying members.

Claims (1)

(57) [Claims for registration of utility model] (1) The substrate is fixed to the inner peripheral wall of the circular tank along the inner peripheral wall, while the support frame is located closer to the center of the pond than the substrate. Are arranged, and a tubular trough is provided rotatably back and forth about an axis horizontally provided coaxially with the substrate and the support frame, and the trough has an inflow opening at an upper portion. The inlet is able to swallow the scum by rotating forward, and the swallowing is stopped by returning to the backward,
The forward rotation of the trough is configured to be performed in conjunction with the copying member along with the approach of the scraper for scraping the scum attached to the arm rotating in the circular tank to the trough, and the trough is A box-shaped support portion is provided on the outer periphery of the end on the inner peripheral wall side so as to project from the substrate toward the center of the pond, and the support portion is sealed relative to the outer periphery of the trough end so as to be relatively rotatable. A scum removal device in which the scum is made to flow in communication with the end of the trough and a discharge tube is connected to the support portion in communication. (2) In claim 1, on the upper part of the support frame,
A scum removal device to which the upper stay is connected. (3) The scum removing device according to claim 1 or 2, wherein the upper portion of the support portion is formed in a cylindrical shape.