JP6589162B1 - A device that collects dust floating on the surface of liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for collecting dust drifting on a liquid surface. An apparatus according to the present invention includes a container having a space for collecting garbage therein, a first cylindrical portion at an upper portion, and a pump for discharging liquid that has entered the space to the lower portion. And a float part including a float connected to the second cylindrical part and a second cylindrical part that fits the cylindrical part in a state in which the container can move up and down, and the container has a first cylindrical shape. A first opening is provided on the side surface of the portion, and the float portion is provided with a second opening at a position including the liquid surface when floating on the liquid surface of the second cylindrical portion, and the position and width of the first opening are The area of the opening formed to overlap the second opening when there is no dust and liquid in the container space is the largest, and when the amount of dust and liquid exceeds a predetermined amount, the area of the opening decreases. The opening is closed and disappears after a predetermined amount of dirt and liquid has accumulated. The Do not discharge the waste collected when the pump is out of order. [Selection] Figure 1

Description

  The present invention relates to an apparatus for recovering dust floating on the surface of a liquid collected in the sea, the surface of a river, a pond, a pool, a bath or the like.

  As an apparatus for collecting the dust drifting on the surface of the liquid, for example, Patent Document 1 discloses a bowl-shaped container having an open top surface, which is a container for collecting the dust together with the liquid, and the liquid flowing into the container. A container having a mechanism for pumping is disclosed. This container once scoops up only the garbage by allowing the dust drifting to the liquid surface to flow into the container together with the liquid, and then lifting the garbage collection net.

  Patent Document 1 discloses that a pump is attached to the bottom of a container as a mechanism for pumping liquid. However, in this configuration, when the pump stops for some reason, the liquid level in the container rises, there is no difference from the liquid level, and the collected dust is discharged again.

JP 2018-17064 A

  An object of the present invention is to provide an apparatus for recovering dust floating on the surface of a liquid, which solves the problems of the conventional example.

  The device for collecting dust drifting on the surface of the liquid according to the present invention is a device for collecting the dust drifting on the surface of the liquid, and has a space for collecting the dust inside, and in the space above the space. A container having a first cylindrical portion that communicates with a pump that discharges the liquid that has entered the space to the outside, and the first cylindrical portion of the container can move up and down. And a float part including a float connected to the second cylindrical part, and the container is provided on the side surface of the first cylindrical part. 1 opening is provided, and the float portion is provided with a second opening including a position that becomes a liquid level when floated on the liquid in the second cylindrical portion, and the position and width of the first opening. Includes a position where an opening formed overlapping the second opening becomes the liquid level, and the container When there is no dust and liquid in the space, the area of the opening is the largest, and when the dust and liquid exceed a predetermined amount, the area of the opening becomes small, and after a predetermined amount of dust and liquid has accumulated The opening portion is closed and disappears.

  It is preferable that the first opening becomes narrower as it goes upward.

  Between the first opening of the container and the pump, the operation of the pump is stopped when the distance to the pump of heavy oil contained in the liquid that has entered the space reaches a predetermined value. Preferably, a switch is provided.

  The switch is a float switch that is lighter than the specific gravity of liquid assumed in advance and heavier than the specific gravity of heavy oil, and the float switch contains heavy oil in the liquid that has entered the space, and has a predetermined position. It is preferable to stop the operation of the pump when the heavy oil is accumulated up to.

  A filter is provided between the first opening of the container and the pump to separate the waste and liquid that has entered the space, and the float switch is provided between the filter and the pump. Is preferable.

  According to the present invention, when the pump stops due to a failure, a decrease in the battery, or the like, liquid accumulates in the container, and as a result, the opening formed by the overlap between the first opening and the second opening is closed and disappears. Therefore, the garbage once collected in the container can be prevented from being discharged again.

The perspective view which shows the state which floats and uses the apparatus which concerns on one embodiment of this invention on the sea surface. (A) is a perspective view of the container which comprises the apparatus, (b) is a perspective view of the float part which comprises the apparatus. (A) and (b) are sectional drawings for demonstrating the internal structure of the container shown to Fig.2 (a). (A) thru | or (f) is a perspective view for demonstrating the area change of the opening part which changes with the vertical motion of the container which comprises the apparatus. (A) shows the initial state when the device is put into the sea, (b) shows the state in which the container of the device is filled with seawater, (c) shows the state when the pump of the device container is operating. FIG.

  An apparatus for collecting dust drifting on the surface of a liquid according to an embodiment of the present invention has a space for collecting dust inside, a first cylindrical portion communicating with the space in an upper portion, and a lower portion A container having a pump that discharges the liquid that has entered the space to the outside, a second cylindrical part that fits the first cylindrical part of the container in a state in which the container can move up and down, and the And a float part including a float connected to the second cylindrical part. The container is provided with a first opening on a side surface of the first cylindrical portion. The float portion is provided with a second opening having an upper end portion and a lower end portion including a position that becomes a liquid level when floated on the liquid in the second cylindrical portion. The position and width of the first opening include the position where the opening formed overlapping the second opening becomes the liquid level, and the area of the opening is the largest when there is no dirt or liquid in the container space. For example, when the liquid exceeds a predetermined amount, the width of the opening portion is set narrower toward the upper portion so that the opening portion becomes smaller continuously or intermittently. The position and width of the first opening are set so that the opening portion is closed and eliminated after a predetermined amount of dust and liquid has accumulated. If the pump stops due to power off, failure, battery low, etc., liquid will accumulate in the container, and as a result there will be no opening part, so that the garbage once collected in the container will not be released again be able to.

  Hereinafter, the apparatus 1 which collect | recovers the dust drifting on the liquid level based on a 1st Example is demonstrated. In the present specification, the term “garbage drifting on the liquid surface” refers to a place where liquid with a depth sufficient to float the device 1 is collected, and depends on the size of the device 1, for example, the sea, river, Such as plastic trash such as plastic bottles, polystyrene foam, plastic bags, empty cans, glass bottles, dirt, floating seaweeds, heavy oil, etc. I say garbage.

  FIG. 1 shows a state in which dust drifting on the surface of the sea surface 100 is collected using the apparatus 1. The apparatus 1 is comprised by the container 2 and the float part 3 which supports the said container 2 so that a vertical movement is possible. In the overlapping part of the container 2 and the float part 3, an opening part 4 whose area changes depending on the vertical position of the container 2 is formed. The opening 4 is designed so that its lower end 4a is always below the sea level, and garbage 5 such as plastic bags, empty cans, plastic bottles, etc. drifting on the sea surface flows into the container 2 together with seawater. .

  2A is a perspective view of the container 2, and FIG. 2B is a perspective view of the float portion 3 shown at the same scale as the container 2 shown in FIG. 3A is a cross-sectional view of the container 2 viewed from the front, FIG. 3B is a cross-sectional view of the container 2 viewed from the side, and FIG. 3C is a bottom view of the container 2. The structure of the container 2 and the float part 3 is demonstrated referring FIG. 2, FIG.

  The container 2 shown in FIGS. 2 (a), 3 (a), 3 (b), and 3 (c) is made of, for example, plastic resin, and has an inside diameter of 990 mm, an outside diameter of 1000 mm, that is, a thickness of 5 mm and a depth of 1500 mm. A cylindrical container at the bottom. The container 2 has a space 6 for collecting dust inside, a first cylindrical portion 7 communicating with the space 6 in the upper portion, and a pump 8 for discharging the liquid that has entered the space 6 to the lower portion (see FIG. 3 (a)). A first opening 9 is provided in the first cylindrical portion 7. The first opening 9 has the same shape and is provided at two positions in the first cylindrical portion 7 facing each other. By adopting this configuration, the propulsive force generated in the opposite direction when seawater flows into the space 6 of the container 2 is offset, so that the device 1 does not move in an unintended direction. The first opening 9 is formed by stacking rectangular openings 9b and 9c having a narrow width stepwise on the rectangular opening 9a, that is, as shown in FIG. 3A. It has a shape.

  The pump 8 provided on the bottom surface of the container 2 is battery-driven, and discharges the liquid sucked from the upper suction port 8a from the discharge port 10 provided at the center of the bottom surface as shown in FIG. . By adopting a configuration in which the discharge port 10 is provided at the center of the bottom surface, the propulsive force generated by discharging the liquid prevents the apparatus 1 from moving in an unintended direction.

  In addition, although the opening part 4 and the discharge port 10 are arranged so that the direction and the number thereof do not move in an unintended direction, the orientation assumed in advance, for example, one direction or a circle is drawn. It may be arranged to move in the direction. Further, the discharge port 10 may be formed in a nozzle shape, the direction thereof can be controlled by remote operation, and the apparatus 1 can be moved in an arbitrary direction.

  Inside the container 2, a filter 11 that separates dust and liquid is provided between the space 6 and the pump 8. A float switch (or level switch) 12 is provided between the filter 11 and the pump 8. The float switch 12 includes a float 12a that is lighter than the specific gravity of liquid such as seawater or water and that is heavier than the specific gravity of heavy oil, and a lever-type switch that has a float 12a attached to the tip and pivotally supported at the other end. The pump 8 is turned on and off according to the vertical movement of the float 12a. When heavy oil does not enter the space 6, the float 12 a floats upward so as to hit the filter 11, and the float switch 12 turns on the pump 8. However, when heavy oil enters the space 6 and the float 12a is pushed down by heavy oil to a position where the distance between the heavy oil and the pump 8 becomes a predetermined value, for example, 200 mm, the float switch 12 turns off the pump 8. When heavy oil passes through the inside of the pump 8, it sticks to the liquid path and causes a failure. By providing this float switch 12, the pump 8 can be stopped at a position away from the heavy oil by a distance that does not cause a failure. .

  For example, flanges 13 and 14 having an outer diameter of 1020 mm and a vertical width of 10 mm are provided on the top and bottom of the container 2. The flanges 13 and 14 hit the upper edge 3a and the lower edge 3b of the float part 3 and restrict the vertical movement of the container 2. For example, when the apparatus 1 is used on the sea surface, the flange 13 can be used for the container 2 even when seawater enters the space where the buoyancy of the collected waste is generated in the space 6 of the container 2 and sinks or receives an unexpected wave. Is prevented from penetrating through the float 3 and sinking. For example, when the device 1 is used on the sea surface, the flange 14 receives an unexpected wave, and the lower end portion 4a of the opening portion 4 (see FIG. 1) becomes higher than the sea surface. Suppress it from moving up. In addition, when using it in the condition without such a possibility, one or both of the flanges 13 and 14 can be abbreviate | omitted.

  Although not shown, one or more rails are provided along the vertical direction of the container 2, and the float portion 3 is provided with a groove into which the rails are fitted. By adopting this configuration, the orientation of the container 2 in the float unit 3 is kept constant. If technology such as bearings is used, smoother vertical movement is realized. In addition, the rail and the groove have the shape of the container 2 and the float portion 3 changed to a cross-sectional shape in which the container 2 does not rotate, for example, a polygon including a triangle and a rectangle, a kamaboko shape, an elliptical shape, etc. By doing so, it becomes unnecessary.

  The float 3 shown in FIG. 2B is made of, for example, a plastic resin, and has an inner diameter of 1010 mm and an outer diameter of 1020 mm, that is, a thickness of 5 mm, and the first cylindrical portion 7 of the container 2 is moved up and down with an interval of 5 mm. It is comprised by the 2nd cylindrical part 15 fitted in the state which can move, and the float 16 connected to this 2nd cylindrical part 15. FIG. A second opening 17 is provided in the second cylindrical portion 15. Regardless of the change in buoyancy caused by the vertical movement of the container 2, the float 16 has an upper end 17a of the second opening 17 that is always higher than the sea level, and at the same time, the lower end 17b is always lower than the sea level. With buoyancy designed to be

  4A to 4F show the shape of the opening 4 that changes depending on the positional relationship between the container 2 and the float 3. The opening portion 4 is formed by the overlap of the first opening 9 of the container 2 and the second opening 17 of the float portion 3. The position of the lower end portion 9a (see FIG. 2A) of the first opening 9 is provided at a position where the lower end portion 4a of the opening portion 4 is always lower than the sea level. As shown in FIG. 4A, from the state where the container 2 is floating and the flange 14 is in contact with the lower edge 3b of the float portion 3, the container 2 is sunk as shown in FIG. A state until it comes into a state where it hits the upper edge 3a of the float part 3 is shown.

  As shown in FIG. 4A, the opening portion 4 has the largest area when there is no dust and liquid in the space 6 of the container 2. When the amount of dust and liquid exceeds a predetermined amount and the container 2 starts to sink, the second opening 17 overlaps the narrow rectangular openings 9b and 9c of the first opening 9, and as a result, FIG. As shown in FIG. 4B to FIG. 4E, the area of the opening 4 becomes smaller. Since the shape of the first opening 9 becomes smaller as it goes upward, the shape of the opening portion 4 becomes an isosceles trapezoid, and the flow rate above the lower side of the opening portion 4 is increased, thereby increasing the liquid The collection rate of garbage floating on the surface can be improved. After the predetermined amount of dust and liquid is accumulated, the opening 4 is closed and disappears as shown in FIG. In this specification, “the opening portion 4 is closed and disappears” not only means that the overlap between the first opening 9 and the second opening 17 is completely eliminated, but the target garbage once enters the space 6 of the container 2. After the recovery, the overlap between the first opening 9 and the second opening 17 substantially disappears below an interval that cannot be discharged through the opening portion 4 again.

  Since the discharge port 10 of the pump 8 provided at the bottom of the container 2 is provided at the center of the bottom surface, the propulsive force generated by discharging this liquid lifts the container 2 upward, Acts in the direction of increasing the area. When the pump is stopped, this propulsive force is lost, the container 2 sinks, and the state shown in FIG.

  FIG. 5 is a diagram for explaining a change in the position of the float portion 3 with respect to the sea surface 100, which changes as the container 2 moves up and down. FIG. 5A shows a state when the apparatus 1 is thrown into the sea in a state where the pump 8 is not operated. A weight (not shown) is provided inside or around the pump 8 of the container 2, and when the apparatus 1 is floated in the sea, the first opening 9 of the container 2 is located at the position shown in FIG. It is designed to be. This state is the same as in FIG. 4A, and the float 16 is slightly lifted because the buoyancy of the container 2 is received by the engagement of the flange 14, but the lower end 17 b of the second opening 17. Is lower than the sea level of the sea 100.

  FIG. 5B shows a state in which the container 2 is most sinked as a result of being left in the state of FIG. In this case, since the weight of the container 2 is received by the engagement of the flange 13, the float 16 is slightly sunk. The lower end 17 b of the second opening 17 is at a position lower than the sea level of the sea 100. Since the opening portion 4 is in a closed state, the dust sucked into the space 6 of the container 2 is not discharged outside.

  FIG.5 (c) shows the state after starting the pump 8 from the state of FIG.5 (b). Seawater that has flowed into the space 6 of the container 2 is discharged to the outside by the pump 8, and as a result, the container 2 moves up and down by the balance between the amount of seawater that flows from the opening 4 and the amount of seawater that the pump 8 discharges to the outside. That is, in this case, the float part 3 receives only a frictional force due to its vertical movement from the container 2 and does not receive any force. Therefore, as designed, the lower end 17 b of the second opening 17 is at a position lower than the sea level of the sea 100. In this case, as long as the pump 8 is operating normally, a liquid flow from the opening 4 toward the pump 8 is created, and the sucked dust does not flow backward. In addition, although the apparatus 1 was actually prototyped and the water level in the case of FIG. 5 (a) (b) (c) was confirmed, it operate | moved without the problem in particular.

  Garbage collected in the space 6 of the container 2 can be collected from above the container 2 with a hand net or the like. In addition, a net basket or a net-like bag provided with a notch portion in advance in accordance with the shape of the first opening 9 may be put in and collected by pulling up the net basket or the net-like bag. When collecting the waste, the apparatus 1 is in the state shown in FIGS. 4 (f) and 5 (b), and the collected waste does not go out. Garbage that has been spilled with the mesh bag or mesh bag drifts in the space 6 of the container 2 and can be easily scrubbed with a hand net or the like.

  The present invention can be modified in various ways as long as the effect can be obtained. For example, the first opening 9 may have a triangular shape or an isosceles trapezoidal shape whose width continuously decreases from the lower part toward the upper part. In addition, a part or all of the side surfaces of the contact surface of the container 2 and the float portion 3 are inclined, for example, the first cylindrical portion 7 and the second cylindrical portion 15 are formed in a weight shape, and the flange 13 or the flange 14 is suppressed. If the effect is substituted, the flange 13 or the flange 14 can be omitted.

  The apparatus of the present invention is assumed to be used in the sea, river, pond, pool, bath, etc., but is not limited to this, and liquid of a depth that can be used to store the apparatus, such as a dam lake, water tank, etc. If it is, it can be used.

DESCRIPTION OF SYMBOLS 1 Apparatus 2 Container 3 Float part 4 Open part 5 Garbage 6 Space 7 1st cylindrical part 8 Pump 9 1st opening 10 Discharge port 11 Filter 12 Float switch 13, 14 Flange 15 2nd cylindrical part 16 Float 17 2nd opening

Claims (5)

A device that collects dust floating on the surface of a liquid,
A container having a space for collecting dust inside, a first cylindrical portion communicating with the space at the top, and a pump for discharging the liquid that has entered the space to the bottom at the bottom; The first cylindrical portion of the container includes a second cylindrical portion that fits in a state in which the container can move up and down, and a float portion that includes a float connected to the second cylindrical portion. Has been
The container is provided with a first opening on a side surface of the first cylindrical portion,
The float portion is provided with a second opening in the second cylindrical portion including a position that becomes a liquid level when floated on the liquid,
The position and width of the first opening include the position where the opening formed overlapping the second opening becomes the liquid level, and the area of the opening is the largest when there is no dirt and liquid in the space of the container. Large, when the amount of dust and liquid exceeds a predetermined amount, the area of the opening portion is reduced, and after the predetermined amount of dust and liquid has accumulated, the opening portion is closed and disappears. A device that collects dust floating on the surface of the liquid. The apparatus for collecting dust floating on the surface of the liquid according to claim 1, wherein the first opening is narrower as it goes upward. Between the first opening of the container and the pump, the operation of the pump is stopped when the distance to the pump of heavy oil contained in the liquid that has entered the space reaches a predetermined value. 3. The apparatus for recovering dust floating on the surface of the liquid according to claim 1, wherein a switch is provided. The switch is a float switch that is lighter than the specific gravity of liquid assumed in advance and heavier than the specific gravity of heavy oil, and the float switch contains heavy oil in the liquid that has entered the space, and has a predetermined position. 4. The apparatus according to claim 3, wherein the operation of the pump is stopped when the heavy oil is accumulated up to the point. Between the first opening of the container and the pump, a filter that separates the waste and liquid that has entered the space is provided,
The apparatus according to claim 4, wherein the float switch is provided between the filter and the pump.