TW202102745A - Device for collecting garbage floating on surface of liquid - Google Patents

Abstract

Provided is a device that collects garbage floating on the surface of a liquid. This device is characterized by being configured from: a container having a space for storing garbage therein, a first cylindrical portion in the upper part, and a pump in the lower part that discharges to the outside liquid that has entered the space; and a float part that includes a second cylindrical portion that engages with the first cylindrical portion in a state such that the container can move vertically, and floats that are connected to the second cylindrical portion, the device being such that the container is provided with a first opening in the side surface of the first cylindrical portion, the float part is provided with a second opening in the second cylindrical portion at a position that includes the water surface when floating on the water surface, the position and width of the first opening are such that the area of the opening portion formed overlapping with the second opening is largest when there is no garbage or liquid in the space of the container and becomes smaller when the garbage and liquid exceed a preset amount, and the opening portion closes so as to disappear after a preset amount of garbage and liquid have collected. If the pump fails, etc., collected garbage is not discharged again to the outside.

Description

Device for recycling garbage floating on liquid surface

The present invention relates to a device for recovering garbage floating on the surface of oceans, rivers, ponds, swimming pools, bathtubs, etc., which accumulate on liquid surfaces.

As a device for recovering garbage floating on a liquid surface, for example, Patent Document 1 discloses a container that uses a bowl-shaped container with an opening on the top to collect liquid and garbage together, and has a mechanism for sucking the liquid flowing into the container. In this container, the garbage floating on the surface of the liquid flows into the container together with the liquid, and then only the garbage is picked up by lifting the garbage collection net.

In Patent Document 1, it is disclosed that a pump is installed at the bottom of the container as a mechanism for pumping liquid. However, this structure is used when the pump is stopped for some reason, the liquid level in the container rises, and the difference between the liquid surface disappears, and The previously collected garbage will be discharged again. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Publication No. 2018-17064

[The problem to be solved by the invention]

The purpose of the present invention is to provide a device for recovering garbage floating on a liquid surface that solves the problems of the above-mentioned conventional examples. [Means to Solve the Problem]

The device for recovering garbage floating on a liquid surface of the present invention is a device for recovering garbage floating on a liquid surface, which is characterized by having a space for accumulating garbage inside and a first cylindrical part communicating with the space on the upper part , A container with a pump for discharging the liquid entering the space at the lower part, and a second cylindrical part that fits into the first cylindrical part of the container in a state where the container can move up and down, and the second cylindrical part. 2 The buoy part of the buoy connected to the cylindrical part is formed. The container is provided with a first opening on the side of the first cylindrical part; the buoy part is provided on the second cylindrical part and becomes liquid when floating on the liquid surface. The second opening of the position of the surface; the position and width of the first opening include the position where the opening formed by overlapping with the second opening becomes the position of the liquid surface, and when there is no garbage and liquid in the space of the container, the opening The area of the part becomes the largest. The area of the opening becomes smaller when the garbage and liquid exceed the preset amount, and the opening is closed and disappears after the garbage and liquid accumulate the preset amount.

The width of the first opening is preferably narrower as it goes upward.

A switch is preferably provided between the first opening of the container and the pump to stop the operation of the pump when the distance between the heavy oil contained in the liquid entering the space and the pump reaches a preset value.

The above-mentioned opening relation is a buoy switch whose specific gravity is lighter than the predetermined liquid and the specific gravity of heavier oil is heavier, and the buoy switch stops the operation of the pump when the liquid entering the space contains heavy oil and the heavy oil accumulates to a preset position Better.

A filter element is provided between the first opening of the container and the pump to separate garbage and liquid entering the space, and the buoy switch is preferably provided between the filter element and the pump. [Effects of Invention]

According to the present invention, when the pump is stopped due to malfunctions, low battery power, etc., liquid accumulates in the container. As a result, the opening formed by the overlap of the first opening and the second opening is closed and disappears. Prevent the previously collected garbage from being discharged again.

An embodiment of the present invention is a device for recovering garbage floating on the surface of a liquid, which has a space for accumulating garbage inside and a first cylindrical part communicating with the space on the upper part, and a device for removing the liquid entering the space from the lower part. The container of the pump that discharges, and the second cylindrical part that fits into the first cylindrical part of the container in a state where the container can move up and down, and the buoy part of the buoy connected to the second cylindrical part . The container is provided with a first opening on the side surface of the first cylindrical part. The buoy part is provided with a second cylindrical part with a second opening having an upper end and a lower end that become the liquid surface when floating on the liquid surface. The position and width of the first opening include the position where the opening part formed by overlapping with the second opening becomes the position of the liquid surface, and the area of the opening part becomes the largest when there is no garbage and liquid in the space of the container. The opening part becomes smaller continuously or intermittently after a predetermined amount is exceeded, for example, the width becomes narrower toward the upper part. The position and width of the first opening are set in such a way that the opening part is closed and disappears after the garbage and liquid accumulate a preset amount. When the pump stops due to power off, malfunction, or low battery power, the liquid accumulates in the container, and the opening disappears. Therefore, it can prevent the garbage that has been collected in the container from being discharged again.

Hereinafter, the device 1 for recovering garbage floating on the liquid surface of the first embodiment will be described. In this specification, the so-called "garbage floating on the surface of a liquid" refers to a place where liquid with a depth sufficient to float the device 1 is accumulated, depending on the size of the device 1, such as oceans, rivers, ponds, etc. Plastic trash such as PET bottles, styrofoam, plastic bags, empty cans, glass bottles, stains and other floating objects, floating seaweeds, heavy oil and other trash floating on the surface of the seawater or water of swimming pools and bathtubs.

FIG. 1 shows a situation in which the device 1 is used to recover garbage floating on the surface of the sea 100 of the ocean. The device 1 is composed of a container 2 and a float part 3 that supports the container 2 to be able to move up and down. At the overlapping portion of the container 2 and the buoy portion 3, an opening 4 whose area changes according to the upper and lower positions of the container 2 is formed. The opening part 4 is designed such that its lower end 4a is always located below the sea surface, and plastic bags, empty cans, PET bottles and other garbage 5 floating on the sea surface flow into the container 2 together with sea water.

Fig. 2(a) is a perspective view of the container 2, and Fig. 2(b) is a perspective view of the buoy part 3 shown at the same scale as the container 2 shown in (a). 3 (a) is a cross-sectional view of the container 2 viewed from the front, (b) is a cross-sectional view of the container 2 viewed from the side, and (c) is a bottom view of the container 2. The structure of the container 2 and the buoy part 3 will be described with reference to FIGS. 2 and 3.

The container 2 shown in Figures 2(a) and 3(a)(b)(c) is, for example, made of plastic resin and has an inner diameter of 990 mm and an outer diameter of 1000 mm, that is, a thickness of 5 mm and a depth of 1500 mm cylindrical container with bottom. The container 2 has a space 6 for accumulating garbage inside, a first cylindrical portion 7 connected to the space 6 at the upper part, and a pump 8 at the lower part that discharges the liquid entering the space 6 outward (refer to Figure 3(a)) ). A first opening 9 is provided in the first cylindrical portion 7. The first opening 9 is provided in the same shape at two positions facing each other in the first cylindrical portion. By adopting this structure, the propulsive forces generated in opposite directions when seawater flows into the space 6 of the container 2 cancel each other, and the device 1 is prevented from moving in an unintended direction. The first opening 9 has a shape in which a rectangular opening 9a is laminated with discontinuous widths, that is, rectangular openings 9b and 9c whose width is gradually narrowed as shown in FIG. 3(a).

The pump 8 provided on the bottom surface of the container 2 is battery driven, as shown in FIG. 3(c), and discharges the liquid sucked in from the upper suction port 8a through the discharge port 10 provided in the center of the bottom surface. By adopting the configuration in which the discharge port 10 is provided in the central part of the bottom surface, the device 1 is prevented from moving in an unintended direction by the propulsion force generated by discharging the liquid.

In addition, although the opening portion 4 and the discharge port 10 are arranged in such a way that the device 1 does not move in an unintended direction by their orientation and number, the device 1 is oriented in a predetermined orientation, for example, a single direction, or It can also be configured to move in the direction of the circle. Furthermore, the discharge port 10 may be a nozzle shape, its orientation may be controlled by a remote control, or the device 1 may be movable in any direction.

In the interior of the container 2, a filter 11 is provided between the space 6 and the pump 8 to separate garbage and liquid. A float switch (or level switch) 12 is provided between the filter element 11 and the pump 8. The buoy switch 12 is composed of a buoy 12a which has a lighter specific gravity than a predetermined liquid such as sea water or water and a heavier oil which has a heavier specific gravity; 12a moves up and down to power on and power off the pump 8. When the heavy oil does not enter the space 6, the buoy 12a floats above in contact with the filter 11, and the buoy switch 12 turns the pump 8 on. However, after heavy oil enters the space 6 and the buoy 12a is pressed by the heavy oil until the distance between the heavy oil and the pump 8 becomes a preset value, for example, 200 mm, the buoy switch 12 turns the pump 8 off. The heavy oil passes through the inside of the pump 8 and adheres to the liquid flow path, which is the cause of the failure. However, by setting the float switch 12, the pump 8 can be stopped at a distance away from the heavy oil that does not cause failure.

The upper part and the bottom part of the container 2 are provided with flanges 13 and 14 with an outer diameter of 1020 mm and a vertical width of 10 mm, for example. The flanges 13 and 14 are in contact with the upper edge 3a and the lower edge 3b of the buoy portion 3 to restrict the up and down movement of the container 2. The flange 13 is used, for example, when the device 1 is used on the sea surface, even if seawater enters the space where the buoyancy of garbage collected in the space 6 of the container 2 is generated and sinks, or is subjected to unexpected waves, the container 2 will not It is suppressed by passing through the buoy part 3 and sinking. The flange 14 is used, for example, to prevent the lower end 4a of the opening 4 (refer to FIG. 1) from moving upward in the buoy portion 3 to an extent higher than the sea surface when the device 1 is used on the sea surface under unexpected waves. Way to suppress. In addition, when it is used without such risks, one or both of the flanges 13 and 14 can be omitted.

Furthermore, although not shown, one or more rails are provided along the upper and lower directions of the container 2, and the buoy portion 3 is provided with grooves into which the rails fit. By adopting this structure, the orientation of the container 2 in the buoy part 3 is maintained constant. If technology such as bearings is used, smoother up and down movements can be achieved. In addition, when the shape of the container 2 and the buoy portion 3 is set to a cross-sectional shape that the container 2 does not rotate, such as a polygonal shape including a triangle and a rectangle, a fish plate shape, an ellipse, etc., instead of a circular cross-sectional shape, The track and groove are not required.

The buoy part 3 shown in Figure 2(b) is made of, for example, plastic resin with an inner diameter of 1010 mm and an outer diameter of 1020 mm, that is, a thickness of 5 mm, and is spaced at a distance of 5 mm in the first cylinder of the container 2. The second cylindrical portion 15 which is fitted in a state where the cylindrical portion 7 can move up and down, and the buoy 16 connected to the second cylindrical portion 15 are constituted. A second opening 17 is provided in the second cylindrical portion 15. The buoy 16 has a buoyancy designed in such a way that the upper end 17a of the second opening 17 always becomes a position higher than the sea surface, and the lower end 17b is not affected by the change of the buoyancy caused by the up and down movement of the container 2 Has always become a position lower than the sea.

4(a) to 4(f) show the shape of the opening portion 4 that changes due to the positional relationship between the container 2 and the float portion 3. The opening portion 4 is formed by overlapping the first opening 9 of the container 2 and the second opening 17 of the float portion 3. The position of the lower end 9a (refer to FIG. 2(a)) of the first opening 9 is set at a position where the lower end 4a of the opening 4 always becomes a position lower than the sea surface. It is shown that the state where the container 2 as shown in FIG. 4(a) floats and the flange 14 is in contact with the lower edge 3b of the buoy portion 3 becomes the container 2 sinking and the flange 13 and the buoy as shown in FIG. 4(f) The state where the upper edge 3a of the part 3 is in contact.

As shown in Fig. 4(a), the area of the opening 4 is maximized when there is no garbage or liquid in the space 6 of the container 2. After the amount of garbage and liquid exceeds the preset amount and the container 2 starts to sink, the second opening 17 becomes overlapped with the narrow rectangular openings 9b and 9c of the first opening 9, and the result is shown in Figure 4(b)~ As shown in Fig. 4(e), the area of the opening 4 gradually becomes smaller. In addition, by setting the shape of the first opening 9 to a shape whose width becomes narrower as it goes upward, the shape of the opening portion 4 becomes an isosceles trapezoid. Compared with the lower side of the opening portion 4, the inflow speed of the upper side can be increased, which can improve The recovery rate of garbage floating on the liquid surface. After garbage and liquid have accumulated in a preset amount, as shown in FIG. 4(f), the opening portion 4 is closed and disappears. In this specification, "the opening 4 is closed and disappears" not only refers to the situation where the overlap of the first opening 9 and the second opening 17 completely disappears, but also includes that the object garbage is first collected in the space 6 of the container 2, and then the first opening 9 and the second opening 17 disappear. The overlap of the first opening 9 and the second opening 17 substantially disappears to such an extent that the garbage will not be discharged through the opening portion 4 again.

In addition, because 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 propelling force generated by discharging the liquid lifts the container 2 upward and acts in the direction of expanding the area of the opening 4. When the pump stops, the propulsive force disappears and the container 2 sinks and becomes the state shown in Fig. 4(f). Therefore, the positional relationship between the container 2 and the buoy part 3 does not cause any problems.

FIG. 5 is a diagram illustrating the change of the position of the buoy portion 3 relative to the sea surface that changes due to the up and down movement of the container 2. Fig. 5(a) shows the situation when the device 1 is thrown into the sea in a state where the pump 8 is not operated. A weight body (not shown) is arranged inside or around the pump 8 of the container 2, and is designed so that when the device 1 is floated in the sea, the first opening 9 of the container 2 becomes the position shown in Fig. 5(a). This state is the same as Fig. 4(a). Because the flange 14 is engaged to bear the buoyancy of the container 2, although the buoy 16 rises slightly, the lower end 17b of the second opening 17 is still located lower than the sea surface of the ocean 100 The location.

Fig. 5(b) shows the state where it is placed in the state of Fig. 5(a), the result is that seawater is filled into the space 6 of the container 2, and the container 2 is the most sinking state. In this case, because the flange 13 is engaged with and bears the weight of the container 2, the buoy 16 sinks slightly. The lower end 17 b of the second opening 17 is located at a lower position than the sea surface of the ocean 100. Since the opening 4 is in a closed state, the garbage that has been sucked into the space 6 of the container 2 will not be discharged to the outside.

Fig. 5(c) shows the state after starting the pump 8 from the state of Fig. 5(b). The seawater flowing into the space 6 of the container 2 is discharged outward by the pump 8. As a result, the container 2 moves up and down due to the balance of the amount of seawater flowing in from the opening 4 and the amount of seawater discharged outward from the pump 8. That is, in this case, the buoy portion 3 receives the force of the degree of friction caused by its up and down movement from the container 2, and does not actually bear any force. Therefore, as designed, the lower end 17b of the second opening 17 becomes a position lower than the sea surface of the ocean 100. In this case, as long as the pump 8 operates normally to form a liquid flow from the opening 4 to the pump 8, the inhaled garbage will not flow back. In addition, the device 1 was actually tried out and the water level in the situation of Fig. 5(a)(b)(c) was confirmed, and it operated without any hindrance.

The garbage collected in the space 6 of the container 2 can be recovered from above the container 2 using a fishing net or the like. In addition, it is preliminarily put into a net cage or a net-shaped bag provided with a cut portion according to the shape of the first opening 9, and the net cage or net-shaped bag may be recovered by pulling up the net. When recycling garbage, the device 1 is in the state of Fig. 4(f) and Fig. 5(b), and the collected garbage will not escape to the outside. The leaked garbage that cannot be recovered by the net cage or the net-shaped bag floats in the space 6 of the container 2, so it can be easily picked up with a fishing net.

In addition, the present invention can be modified in various ways if its effects can be obtained. For example, the first opening 9 may have a shape such as a triangle or an isosceles trapezoid whose width continuously narrows from the lower part to the upper part. Furthermore, one part or all of the side surfaces of the contact surface between the container 2 and the float portion 3 are inclined. For example, the first cylindrical portion 7 and the second cylindrical portion 15 are made into a spindle shape, and the flange 13 or In the case of the suppression effect of the flange 14, the flange 13 or the flange 14 may be omitted. [Industrial availability]

Although the device of the present invention is supposed to be used in oceans, rivers, ponds, swimming pools, bathtubs, etc., it is not limited to this, as long as it is a place where there is enough liquid to be put into the device, such as reservoirs and water storage tanks.

1: device 2: container 3: Buoy Department 3a: upper edge 3b: lower edge 4: Opening part 4a: lower end 5: garbage 6: space 7: The first cylindrical part 8: Pump 8a: suction port 9: The first opening 9a, 9b, 9c: opening 10: Outlet 11: Filter 12: Buoy switch 12a: Buoy 12b: Lever switch 13,14: flange 15: The second cylindrical part 16: Buoy 17: The second opening 17a: upper end 17b: Lower end 100: Ocean

[Fig. 1] A perspective view showing the state when the device of one embodiment of the present invention is floated on the sea surface and used. [Figure 2] (a) is a perspective view of the container constituting the device, and (b) is a perspective view of the buoy portion constituting the device. [Figure 3] (a) and (b) are cross-sectional views for explaining the internal structure of the container shown in Figure 2 (a), and (c) is a bottom view of the container. [Figure 4] (a) to (f) are perspective views for explaining the change in the area of the opening portion that changes due to the up and down movement of the container constituting the device. [Figure 5] (a) is a perspective view showing the initial state of putting the device into the sea; (b) is a perspective view showing the state that the container of the device is filled with seawater; (c) is a perspective view showing the state of the device when the pump of the container is operating The side view.

1: device

2: container

3: Buoy Department

4: Opening part

4a: lower end

5: garbage

100: Ocean

Claims (5)

A device for recovering garbage floating on the surface of a liquid, characterized in that: It consists of a container with a space for accumulating garbage inside, a first cylindrical part communicating with the above space on the upper part, a pump for discharging liquid entering the space on the lower part, and a container that can move up and down. It is composed of a second cylindrical part fitted into the first cylindrical part of the container in a state and a buoy part of a buoy connected to the second cylindrical part, The container is provided with a first opening on the side surface of the first cylindrical portion; The buoy part is provided with a second opening in the second cylindrical part that includes a position that becomes the liquid surface when it floats on the liquid surface; The position and width of the first opening include the position where the opening formed by overlapping with the second opening becomes the surface of the liquid, and the area of the opening becomes the largest when there is no garbage or liquid in the space of the container, The area of the opening portion becomes smaller when the garbage and liquid exceed the preset amount, and the opening portion is closed and disappears after the garbage and liquid accumulate the preset amount. Such as the device for recovering garbage floating on the liquid surface in claim 1, in which: The width of the first opening becomes narrower as it goes upward. For example, the device for recovering garbage floating on the liquid surface of claim 1 or 2, in which, A switch is provided between the first opening of the container and the pump to stop the operation of the pump when the distance between the heavy oil contained in the liquid entering the space and the pump reaches a preset value. For example, the device for recovering garbage floating on the liquid surface in claim 3, in which: The above-mentioned opening relationship is a buoy switch whose specific gravity is lighter than the predetermined liquid and the specific gravity of heavier oil is heavier, and the buoy switch activates the pump when the liquid entering the space contains heavy oil and the heavy oil accumulates to a preset position stop. Such as the device for recovering garbage floating on the liquid surface in claim 4, in which: Between the first opening of the container and the pump is provided with a filter element that separates the garbage and liquid entering the space; The buoy switch is arranged between the filter element and the pump.

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