Liquid collection device, liquid recovery system, and liquid recovery method

Abstract

The present invention provides a liquid collection device, a liquid recovery system, and a liquid recovery method that can efficiently drain water even when the water depth is shallow. [Solution] The liquid collection device 10 collects and stores the liquid L accumulated on the target surface F. The liquid collection device 10 has an annular weir 1 that forms a liquid storage space 3 for storing the liquid L. At least a part of the outer surface of the weir 1 has a liquid guide section 4 that slopes downward toward the outside. The liquid collection device 10 further has a bottom plate 2. The liquid collection device 10 is formed in a container shape by the weir 1 and the bottom plate 2.

Description

Technical Field

[0001] The present invention relates to a liquid collecting tool, a liquid recovery system, and a liquid recovery method.

Background Art

[0002] When water accumulates on the floor surface of a building due to floods, water overflows, etc., drainage may be performed using a pump (for example, see Patent Document 1). In the technique described in Patent Document 1, water can be sucked and discharged by a pump.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the technique described in Patent Document 1, when the depth of the water to be discharged is insufficient, it may be difficult to discharge the water by the pump.

[0005] One aspect of the present invention aims to provide a liquid collecting tool, a liquid recovery system, and a liquid recovery method that can efficiently drain water even when the water depth is shallow.

Means for Solving the Problems

[0006] The liquid collecting tool according to Aspect 1 of the present invention is a liquid collecting tool that collects and stores the liquid accumulated on the target surface, and has an annular weir portion that forms a liquid storage space for storing the liquid, and at least a part of the outer surface of the weir portion is formed with a liquid guiding portion that inclines downward toward the outside.

[0007] The liquid collecting tool according to Aspect 2 of the present invention further has a bottom plate formed at the lower end of the weir portion in the liquid collecting tool according to Aspect 1, and is formed in a container shape by the weir portion and the bottom plate.

[0008] The liquid collection device according to embodiment 3 of the present invention is the liquid collection device described in embodiment 1 or 2, and is elastically bendable and deformable.

[0009] A liquid collection device according to aspect 4 of the present invention is a liquid collection device described in any one of aspects 1 to 3, wherein a weight is provided in the weir portion.

[0010] A liquid recovery system according to aspect 5 of the present invention is a liquid recovery system for recovering liquid accumulated on a target surface, comprising: a liquid collection device having an annular weir that forms a liquid storage space for storing the liquid, and a liquid guide portion having at least a part of the outer surface of the weir that slopes downward toward the outside; and a liquid suction device having a suction portion for sucking up the liquid.

[0011] A liquid recovery system according to embodiment 6 of the present invention is the liquid recovery system according to embodiment 5, wherein the suction unit has a suction port for sucking up the liquid, and the suction port is positioned inside the liquid storage space at a position lower than the highest liquid level.

[0012] A liquid recovery method according to embodiment 7 of the present invention is a liquid recovery method for recovering liquid accumulated on a target surface, comprising: a first step of collecting the liquid in a liquid storage space using a liquid collection device having an annular weir that forms a liquid storage space for storing the liquid; and a second step of using a liquid suction device having a suction part to suck up the liquid stored in the liquid storage space with the suction part, wherein at least a part of the outer surface of the weir is a liquid guide part that slopes downward toward the outward, and in the first step, the liquid collection device is installed on the target surface and the liquid on the target surface is guided through the liquid guide part and over the weir into the liquid storage space. [Effects of the Invention]

[0013] One aspect of the present invention provides a liquid collection device, a liquid recovery system, and a liquid recovery method that can efficiently drain water even when the water depth is shallow. [Brief explanation of the drawing]

[0014] [Figure 1] It is a plan view of the liquid collector according to the first embodiment. [Figure 2] It is a perspective view of the liquid collector according to the first embodiment. [Figure 3] It is a cross-sectional view of the liquid collector according to the first embodiment. [Figure 4] It is a partial cross-sectional view of the liquid collector according to the first embodiment. [Figure 5] It is a cross-sectional view of the normal form of the liquid collector according to the first embodiment. [Figure 6] It is a cross-sectional view of the folded form of the liquid collector according to the first embodiment. [Figure 7] It is a configuration diagram of the liquid suction device. [Figure 8] It is a configuration diagram of the suction part of the liquid suction device. [Figure 9] It is an explanatory diagram of the liquid recovery method according to the embodiment. [Figure 10] It is a cross-sectional view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 11] It is a perspective view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 12] It is a cross-sectional view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 13] It is a perspective view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 14] It is a partial cross-sectional view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 15] It is a cross-sectional view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 16] It is a perspective view of the liquid collector in the liquid recovery method according to the embodiment. [Figure 17] It is a schematic diagram of the liquid collector and the liquid suction device in the liquid recovery method according to the embodiment. [Figure 18] It is a schematic diagram of the liquid collector and the liquid suction device in the liquid recovery method according to the embodiment. [Figure 19] [ It is a plan view of the liquid collector according to the second embodiment. [Figure 20]This is a perspective view of the liquid collection device according to the second embodiment. [Figure 21] This is a cross-sectional view of the liquid collection device according to the second embodiment. [Figure 22] This is a cross-sectional view of a part of the first modified example of the liquid collection device according to the first embodiment. [Figure 23] This is a cross-sectional view of a part of a second modified example of the liquid collection device according to the first embodiment. [Figure 24] This is a cross-sectional view of a third modified example of the liquid collection device according to the first embodiment. [Figure 25] This is a cross-sectional view of a part of a fourth modified example of the liquid collection device according to the first embodiment. [Figure 26] This is a cross-sectional view of a fifth modified example of the liquid collection device according to the first embodiment. [Figure 27] This is a cross-sectional view of the liquid collection device according to the third embodiment. [Figure 28] This is a cross-sectional view showing an example of the installation of a liquid collection device according to the third embodiment. [Modes for carrying out the invention]

[0015] The following description of the liquid collection device, liquid recovery system, and liquid recovery method according to the present invention will be based on the drawings.

[0016] Figure 1 is a plan view of the liquid collection device 10 according to the first embodiment. Figure 2 is a perspective view of the liquid collection device 10. Figure 3 is a cross-sectional view of the liquid collection device 10. Figure 4 is a cross-sectional view of a part of the liquid collection device 10. Figures 3 and 4 show section II of Figure 1. Figure 5 is a cross-sectional view of the liquid collection device 10 in its normal form. Figure 6 is a cross-sectional view of the liquid collection device 10 in its folded form.

[0017] [Liquid collection device] (First embodiment) As shown in Figures 1 and 2, the liquid collection device 10 has an annular weir 1 and a bottom plate 2. The bottom plate 2 is formed in a rectangular shape. As shown in Figure 3, the weir 1 protrudes upward from the periphery of the bottom plate 2. The weir 1 is formed in a rectangular annular shape along the periphery of the bottom plate 2. The bottom plate 2 is formed at the lower end of the weir 1. The bottom plate 2 is formed integrally with the weir 1. The space enclosed by the weir 1 is a liquid storage space 3 for storing liquid. The liquid collection device 10 is formed in a container shape having a liquid storage space 3. The liquid collection device 10 can contain liquid in the liquid storage space 3.

[0018] As shown in Figure 4, the cross-section perpendicular to the longitudinal direction of the weir section 1 is triangular in shape. The inner surface 1a of the weir section 1 is, for example, a surface perpendicular to the bottom plate 2. The lower surface 1c of the weir section 1 is flush with the lower surface 2a of the bottom plate 2.

[0019] The outer surface 1b of the weir section 1 has a fluid guide section 4. The fluid guide section 4 is inclined to slope downward toward the outward direction. "Outward" means the direction away from the center C1 of the fluid collector 10 in a plan view (see Figure 1). Outward is, for example, the direction parallel to the bottom plate 2. The center C1 is, for example, the center of the outer shape (rectangle) of the fluid collector 10 in a plan view.

[0020] The liquid guide section 4 is formed in a height range from the upper end to the lower end of the outer surface 1b of the weir section 1. The inclination angle α of the liquid guide section 4 with respect to the lower surface 1c of the weir section 1 can be, for example, 30° or more. This allows for a larger volume of the liquid storage space 3. The inclination angle α can be 60° or less. This makes it easier to guide the liquid into the liquid collection device 10 when recovering the liquid.

[0021] The liquid collection device 10 is preferably elastically bendable and deformable. In Figure 5, the liquid collection device 10 is shown in its normal form. In the normal form of the liquid collection device 10, the bottom plate 2 is flat. As shown in Figure 6, the liquid collection device 10 can be folded in half. By folding the liquid collection device 10, it can be made smaller. Therefore, the liquid collection device 10 becomes easier to transport and store.

[0022] The liquid collector 10 is formed from, for example, resin, rubber, etc. Examples of materials used to make up the liquid collector 10 include silicone rubber, fluororubber, silicone resin, and fluororesin. It is desirable that the specific gravity of the liquid collector 10 is greater than 1.

[0023] [Liquid recovery system] Figure 7 is a diagram showing the configuration of the liquid absorption device 20. Figure 8 is a diagram showing the configuration of the suction section 21. As shown in Figure 7, the liquid recovery system 100 according to this embodiment includes a liquid collection device 10 (see Figure 1) and a liquid absorption device 20. The liquid suction device 20 comprises a suction unit 21, a main body 22, and a suction tube 23. As shown in Figure 8, the suction unit 21 comprises a nozzle 25 having a plurality of suction ports 24 and a case 26. The plurality of suction ports 24 are formed at intervals along the length of the nozzle 25. The suction ports 24 can suck up liquid. The case 26 covers the nozzle 25. The suction unit 21 is attached to the tip of the suction tube 23.

[0024] The main body 22 is equipped with a power source for sucking liquid. The liquid suction device 20 can suck liquid from the suction port 24 of the suction section 21 via the suction tube 23 by operating the main body 22. It is desirable that the maximum height of the suction port 24 (maximum height from the bottom surface of the suction section 21) be lower than the height of the weir 1 (height of the weir 1 from the bottom plate 2). This allows the suction port 24 to be positioned lower than the highest liquid level in the liquid storage space 3.

[0025] [Liquid recovery method] An example of a liquid recovery method using a liquid recovery system 100 to recover liquid L accumulated on a target surface will be explained.

[0026] (Step 1: Liquid collection using a liquid collection device) As shown in Figure 9, the liquid recovery method according to this embodiment targets liquid L accumulated on the floor surface F (target surface) of a building. Liquid L is, for example, water. As shown in Figures 10 and 11, the liquid collection device 10 is placed on the floor surface F. At this point, the liquid storage space 3 does not contain liquid L.

[0027] As shown in Figures 12 and 13, the liquid L accumulated on the floor surface F is moved toward the liquid collection device 10 using a dry wiper 30. The dry wiper 30 comprises a head portion 32 having a rubber wiper portion 31 and a handle 33 extending from the head portion 32. When the wiper portion 31 is in contact with the floor surface F and the head portion 32 is moved along the floor surface F, the liquid L is pushed by the head portion 32 and flows toward the liquid collection device 10.

[0028] As shown in Figure 14, the liquid L flowing toward the liquid collection device 10 hits the liquid guide section 4 of the weir section 1, changes its flow direction upward, and flows over the weir section 1 into the inside of the weir section 1. In this way, the liquid L is guided through the liquid guide section 4 and over the weir section 1 into the liquid storage space 3.

[0029] As shown in Figures 15 and 16, the liquid L that has flowed over the weir 1 is stored in the liquid storage space 3. As shown in Figure 15, in this embodiment, the liquid level of liquid L reaches the highest liquid level in the liquid storage space 3. That is, the liquid level of liquid L reaches the height of the upper end of the weir 1.

[0030] (Step 2: Liquid recovery using a liquid absorption device) As shown in Figures 17 and 18, the suction port 21 of the liquid absorption device 20 is placed in the liquid storage space 3 of the liquid collection device 10. As shown in Figure 18, the suction port 24 can be positioned lower than the highest liquid level. This makes it easier for the liquid L to be drawn in by the liquid absorption device 20.

[0031] By operating the main body 22 of the liquid absorption device 20, the liquid L in the liquid storage space 3 is sucked out from the suction port 24 of the suction unit 21 and recovered via the suction tube 23.

[0032] [Effects of the liquid collection device, liquid recovery system, and liquid recovery method according to the embodiment] In this embodiment, the liquid collection device 10 has an inclined liquid guide section 4 formed on at least a part of the outer surface 1b of the weir section 1 (see Figure 4). Therefore, when liquid L accumulated on the floor surface F is flowed toward the liquid collection device 10, the liquid L hits the liquid guide section 4, changes its flow direction upward, and is guided over the weir section 1 into the liquid storage space 3. This makes it easy to collect the liquid L inside the liquid collection device 10. Consequently, a sufficient depth of liquid L can be secured in the liquid storage space 3. As a result, the liquid absorption device 20 can fully exhibit its liquid absorption performance. Thus, the liquid L can be recovered efficiently.

[0033] Since the liquid collection device 10 is formed in a container shape by the weir section 1 and the bottom plate 2, the collected liquid L can be held in the liquid storage space 3. Therefore, leakage of liquid L from the liquid collection device 10 is suppressed, and liquid L can be recovered efficiently.

[0034] Since the liquid collection device 10 is elastically bendable and deformable (see Figures 5 and 6), transportation and storage of the liquid collection device 10 are made easy.

[0035] Since the liquid collection device 10 is rectangular in plan view, it can secure a sufficient volume in the liquid storage space 3. Therefore, the liquid L can be recovered efficiently.

[0036] Since the liquid recovery system 100 uses a liquid collection device 10 in which a liquid guide portion 4 is formed on the outer surface 1b of the weir portion 1, the liquid L can be efficiently recovered by the liquid absorption device 20.

[0037] The aforementioned liquid recovery method comprises a first step of collecting liquid L using a liquid collection tool 10 and a second step of aspirating liquid L using a liquid suction device 20. Therefore, a sufficient depth of liquid L can be secured in the liquid storage space 3. Thus, liquid L can be recovered efficiently.

[0038] [Liquid collection device] (Second embodiment) Figure 19 is a plan view of the liquid collection device 110 according to the second embodiment. Figure 20 is a perspective view of the liquid collection device 110. Figure 21 is a cross-sectional view of the liquid collection device 110. Figure 21 shows the II-II cross-section of Figure 19.

[0039] As shown in Figures 19 and 20, the liquid collection device 110 has an annular weir 101 and a bottom plate 102. The bottom plate 102 is formed in a circular shape. As shown in Figure 21, the weir 101 protrudes upward from the periphery of the bottom plate 102. The weir 101 is formed in an annular shape. The bottom plate 102 is formed at the lower end of the weir 101. The space surrounded by the weir 101 is a liquid storage space 103 for storing liquid. The liquid collection device 110 is formed in a container shape having a liquid storage space 103.

[0040] The shape of the cross-section perpendicular to the longitudinal direction of the weir section 101 is the same as the shape of the weir section 1 shown in Figure 4.

[0041] The liquid collection device 110, like the liquid collection device 10 according to the first embodiment (see Figure 1), facilitates the collection of liquid L into the liquid storage space 3. Therefore, a sufficient depth of liquid L can be ensured in the liquid storage space 3. Thus, liquid L can be recovered efficiently.

[0042] Since the liquid collection device 110 is circular in shape when viewed from above, it is easy to install in a relatively narrow target area. Therefore, liquid L can be collected even in a narrow target area.

[0043] [Liquid collection device] (First modified example) Figure 22 is a cross-sectional view of a part of a liquid collection device 210, which is a first modified example of the liquid collection device 10 according to the first embodiment. As shown in Figure 22, in the liquid collection device 210, a metal weight 205 is provided inside the weir section 1. The weight 205 may extend in the longitudinal direction of the weir section 1, or it may be provided intermittently in the longitudinal direction of the weir section 1. The cross-sectional shape of the weight 205 perpendicular to the longitudinal direction is triangular. The weight 205 has, for example, an inner surface 205a parallel to the inner surface 1a of the weir section 1, an outer surface 205b parallel to the outer surface 1b, and a bottom surface 205c parallel to the bottom surface 1c.

[0044] The liquid collection device 210 is equipped with a weight 205 in the weir section 1, which allows for a high specific gravity. Therefore, it can be installed stably without floating on a floor surface where liquid has accumulated. Thus, the work of collecting liquid into the liquid collection device 210 becomes easier.

[0045] [Liquid collection device] (Second modified version) Figure 23 is a cross-sectional view of a part of a liquid collection device 310, which is a second modified example of the liquid collection device 10 according to the first embodiment. As shown in Figure 23, in the liquid collection device 310, a metal weight 305 is provided inside the weir section 1. The weight 305 may extend in the longitudinal direction of the weir section 1, or it may be provided intermittently in the longitudinal direction of the weir section 1. The cross-sectional shape of the weight 305 perpendicular to the longitudinal direction is circular.

[0046] The liquid collection device 310 has a weight 305 in the weir section 1, which allows for a high specific gravity. Therefore, it can be stably installed even on a floor surface where liquid has accumulated. Thus, the work of collecting liquid into the liquid collection device 310 becomes easier.

[0047] [Liquid collection device] (Third modified example) Figure 24 is a cross-sectional view of a part of a liquid collection device 410, which is a third modified example of the liquid collection device 10 according to the first embodiment. As shown in Figure 24, in the liquid collection device 410, a metal weight 405 is provided on the outer surface 401b of the weir section 401. The weight 405 may extend in the longitudinal direction of the weir section 401, or it may be provided intermittently in the longitudinal direction of the weir section 401. The weight 405 is formed in layers. In the liquid collection device 410, a liquid guide section 404 is formed on the outer surface of the weight 405, which slopes downward toward the outside.

[0048] The liquid collection device 410 has a weight 405 in the weir section 1, which allows for a high specific gravity. Therefore, it can be stably installed even on a floor surface where liquid has accumulated. Thus, the work of collecting the liquid into the liquid collection device 410 becomes easier.

[0049] [Liquid collection device] (4th modified version) Figure 25 is a cross-sectional view of a part of a liquid collection device 510, which is a fourth modified example of the liquid collection device 10 according to the first embodiment. As shown in Figure 25, in the liquid collection device 510, a liquid guide section 504 is formed on the outer surface of the weir section 501, which slopes downward toward the outside. The liquid guide section 504 is formed in a curved concave shape.

[0050] [Liquid collection device] (5th modified version) Figure 26 is a cross-sectional view of a part of a liquid collection device 610, which is a fifth modified example of the liquid collection device 10 according to the first embodiment. As shown in Figure 26, in the liquid collection device 610, a liquid guide portion 604 is formed on the outer surface of the weir portion 601, which slopes downward toward the outside. The liquid guide portion 604 is formed in a curved convex shape.

[0051] [Liquid collection device] (Third embodiment) Figure 27 is a cross-sectional view of the liquid collection device 710 according to the third embodiment. Figure 28 is a cross-sectional view showing an example of the installation of the liquid collection device. As shown in Figure 27, the liquid collection device 710 has an annular weir section 701. The weir section 701 has the same configuration as the weir section 1 of the liquid collection device 10 (see Figures 3 and 4). The liquid collection device 710 differs from the liquid collection device 10 (see Figures 3 and 4) in that it does not have a bottom plate 2.

[0052] When the liquid collection device 710 is placed on the floor surface F, liquid can be stored in the liquid storage space 703, which is the space inside the weir section 701.

[0053] As shown in Figure 28, a watertight layer 705 may be formed between the weir 701 and the floor surface F. The watertight layer 705 deforms under the weight of the liquid collection device 710 and itself, and takes shape to conform to the lower surface of the weir 701 and the surface of the floor surface F. The watertight layer 705 is in close contact with the lower surface of the weir 701 and the floor surface F without any gaps. Therefore, it is possible to prevent the liquid in the liquid storage space 703 from leaking out through the gap between the weir 701 and the floor surface F. If a weight (see Figures 22 to 24) is formed on the weir 701, the weight of the weir 701 makes it easier for the watertight layer 705 to adhere tightly to the lower surface of the weir 701 and the floor surface F, thereby enhancing the watertight effect. The watertight layer 705 can be formed from, for example, a silicone-based sealant, epoxy resin, underwater polymer gel, underwater adhesive, slime (special formulation), etc.

[0054] Although the present invention has been described above based on the best mode, the present invention is not limited to the best mode described above, and various modifications are possible without departing from the spirit of the invention. For example, as shown in Figure 4, the fluid guide portion 4 only needs to be formed on at least a part of the outer surface 1b of the weir portion 1. For example, the fluid guide portion 4 may reach the lower end of the outer surface 1b of the weir portion 1, or it may not reach the lower end of the outer surface 1b. The fluid guide portion 4 may be formed over the entire area of ​​the outer surface 1b, or it may be formed over a part of the outer surface 1b. It is desirable that the lower end (lowest part) of the fluid guide portion 4 is located lower than the center of the outer surface 1b in the height direction. The shape of the fluid collector in plan view is not limited to a rectangular shape (see Figure 1) or a circular shape (see Figure 19), but may also be a polygonal shape, an elliptical shape, etc.

[0055] In the liquid collection device shown in Figures 22 to 24, a weight is provided in the weir section, but the weight may also be provided in the bottom plate. The weight can be provided in at least one of the weir section and the bottom plate. [Explanation of Symbols]

[0056] 1,101,401,501,601,701...Weir section, 1b...Outer surface, 2,102...Bottom plate, 3,103,703...Liquid storage space, 4,404,504,604...Liquid guide section, 10,110,210,310,410,510,610,710...Liquid collector, 20...Liquid suction device, 21...Suction section, 24...Suction port, 100...Liquid recovery system, 205,305,405...Weighing weight, F...Floor surface (target surface), L...Liquid

Claims

1. A liquid collection device that collects and stores liquid accumulated on a target surface, It has an annular weir that forms a liquid storage space for storing the aforementioned liquid, A fluid guide portion is formed on at least a part of the outer surface of the weir portion, which slopes downward toward the outside. Liquid collection device.

2. The weir section further has a bottom plate formed at its lower end, The weir and the bottom plate form a container shape. The liquid collection device according to claim 1.

3. It is considered to be elastically bendable. The liquid collection device according to claim 1.

4. A weight is provided in the aforementioned weir section. The liquid collection device according to claim 1.

5. A liquid recovery system for collecting liquid accumulated on a target surface, A liquid collection device having an annular weir that forms a liquid storage space for storing the aforementioned liquid, and a liquid guide portion having at least a part of the outer surface of the weir that slopes downward toward the outside, The device comprises a liquid suction device having a suction section for drawing up the aforementioned liquid, Liquid recovery system.

6. The suction section has a suction port for sucking up the liquid, The suction port is positioned within the liquid storage space at a height lower than the highest liquid level. The liquid recovery system according to claim 5.

7. A liquid recovery method for recovering liquid accumulated on a target surface, A first step of collecting the liquid into the liquid storage space using a liquid collection device having an annular weir that forms a liquid storage space for storing the liquid, The process includes a second step of using a liquid absorption device having a suction section to suck up the liquid stored in the liquid storage space using the suction section, At least a portion of the outer surface of the weir is a fluid guide section that slopes downward toward the outside, In the first step, the liquid collection device is installed on the target surface, and the liquid on the target surface is guided through the liquid guide section and over the weir section into the liquid storage space. Liquid recovery method.

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