Mud collection system

Abstract

To provide a mud collection system capable of facilitating hose handling and suitably collecting mud accumulated under a floor.SOLUTION: A mud collection system S includes a mud collection head 1, a mud collection container 20 connected to the mud collection head 1 through a first hose 10, a first suction apparatus 50 connected to the mud collection container through a second hose 30, a mud collection box 60 connected to the mud collection container through a third hose 40 and formed larger than the mud collection container, and a second suction apparatus 80 connected to the mud collection box through a fourth hose 70. The mud collection container 20 is positioned closer to an underfloor B2 than the mud collection box 60. The first suction apparatus 50 performs suction to cause mud M accumulated in the underfloor B2 to be collected inside the mud collection container 20. The second suction apparatus 80 performs suction to cause the mud collected in the mud collection container 20 to be collected inside the mud collection box 60.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mud recovery system, and more particularly to a mud recovery system used to recover mud that has accumulated under the floor of a building. [Background technology]

[0002] In the past, flooding occurred due to typhoons and torrential rains, and buildings such as houses experienced flooding under or above the floor. River water or rainwater that entered under the floor contains fine particles of mud from the surrounding area, and it became necessary to remove the mud (muddy water) that had accumulated under the floor, but this work was very hard work. For this reason, a mud recovery system is known that uses a suction device such as a vacuum cleaner to recover mud that has accumulated under the floor of a building.

[0003] Specifically, the mud recovery system is installed outdoors, with a suction device (the main body of the suction device) and a large mud recovery box connected by a hose. The hose is then extended from the outdoors of the building to underneath the floor inside the building, and the mud recovery head at the end of the hose is operated to suck up the mud that has accumulated underneath the floor. The sucked up mud is then collected in the mud recovery box. For example, Patent Document 1 proposes a sludge recovery device for efficiently recovering sludge that has accumulated in a specified area, although it is not used to recover mud that has accumulated under the floor of a building. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2014-125754 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the mud recovery system used to recover mud accumulated under the floor of a building, a large suction device and a large mud recovery box are installed outside the building. Therefore, the hose must be continuously extended from the outdoors to the floor inside the building, and the hose becomes long and difficult to handle. For example, when the hose becomes long, the weight of the mud is added when sucking up the mud accumulated under the floor, making the hose considerably heavy and difficult to handle. In addition, the mud is likely to become stuck in the hose. For this reason, there has been a demand for technology that makes it easier to handle the hose and efficiently collect mud that has accumulated under the floor.

[0006] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a mud recovery system that makes it easier to handle the hose than conventional systems and can effectively recover mud that has accumulated under the floor. Another object of the present invention is to provide a mud recovery system that is less likely to cause mud to accumulate in the hose and that is easy to deal with even if mud does accumulate in the hose. [Means for solving the problem]

[0007] The above problem is solved by the mud recovery system of the present invention, which is a mud recovery system used to recover mud accumulated under the floor of a building, comprising: a mud recovery head for recovering mud accumulated under the floor; a mud recovery container connected to the mud recovery head through a first hose and for collecting the mud inside; a first suction device connected to the mud recovery container through a second hose; a mud recovery box connected to the mud recovery container through a third hose and formed larger than the mud recovery container and for collecting the mud inside; and a second suction device connected to the mud recovery box through a fourth hose, wherein the mud recovery container is positioned closer to the underfloor than the mud recovery box, and the first suction device performs a suction operation to recover the mud accumulated under the floor into the inside of the mud recovery container through the mud recovery head and the first hose, and the second suction device performs a suction operation to recover the mud recovered in the mud recovery container into the inside of the mud recovery box through the third hose.

[0008] The above configuration makes it possible to realize a mud recovery system that makes it easier to handle the hose than before and that can effectively recover mud that has accumulated under the floor. In detail, the mud recovery system includes a mud recovery container, a first suction device, a mud recovery box formed larger than the mud recovery container, and a second suction device, each of which is connected by a plurality of hoses. The mud recovery container is disposed in a position closer to the underfloor than the mud recovery box. This allows the length of the hose to be shorter than in the past (the length of each hose can be shortened by using a plurality of hoses), making it easier to handle the hose. In other words, it is possible to avoid the hose becoming heavy due to the weight of the mud being added as a result of a single hose becoming longer. It is also possible to suppress the accumulation of mud in the hose. Furthermore, by providing the mud recovery container and the mud recovery box, the lift height (suction lift height) can be lowered when sucking the mud accumulated under the floor into the mud recovery container, so that the mud can be collected appropriately even if the suction force of the suction device is set relatively low. In addition, the vehicle is equipped with first and second suction devices, and by dividing the functions of each suction device, mud that has accumulated under the floor can be efficiently collected.

[0009] In this case, it is preferable that the first suction device, the second suction device, and the mud collection box are arranged outdoors of the building, and the mud collection container is arranged indoors of the building and is used to temporarily collect the mud. With the above configuration, the length of the hose (particularly the length of the first hose) can be shortened, and the retention of mud in the first hose can be suppressed. Also, the lift height can be lowered when sucking mud accumulated under the floor into the mud collection container.

[0010] At this time, the first suction device is connected to the upper part of the mud recovery container through the second hose and performs suction operation to exhaust the air inside the mud recovery container, and the second suction device is connected to the lower part of the mud recovery container through the fourth hose, the mud recovery box, and the third hose and performs suction operation to transfer the mud inside the mud recovery container to the mud recovery box, and when the first suction device and the second suction device each perform suction operation, it is preferable that the suction pressure by the second suction device is greater than the suction pressure by the first suction device. As described above, the function of the first suction device (mainly the function of discharging air) and the function of the second suction device (mainly the function of discharging mud) are shared, so that mud accumulated under the floor can be collected appropriately. In addition, by making the suction pressure of the second suction device higher than that of the first suction device, the mud collected in the mud collection container can be efficiently transferred to the mud collection box.

[0011] At this time, the first suction device performs a suction operation to recover the mud accumulated under the floor through the first hose into the inside of the mud recovery container, and the second suction device performs a suction operation with a suction pressure greater than that of the first suction device to recover the mud accumulated inside the first hose into the inside of the mud recovery container. With the above configuration, under normal circumstances, the first suction device sucks the mud accumulated under the floor so as to transfer it into the mud recovery container. Then, the second suction device sucks the mud in the mud recovery container so as to transfer it into the mud recovery box. On the other hand, if mud accumulates in the first hose, the second suction device sucks the mud accumulated in the first hose so as to discharge it into the mud recovery container after the mud in the mud recovery container has been completely transferred. In other words, the second suction device functions to discharge the mud into the mud recovery container together with or instead of the first suction device.

[0012] In this case, it is preferable to provide a mud detection sensor attached to the mud recovery container which detects when the amount of mud recovered in the mud recovery container has reached a predetermined amount or is greater than a predetermined amount, and a control unit which controls the suction operation of the first suction device and the second suction device based on the detection result by the mud detection sensor. With the above configuration, it is possible to realize a mud recovery system that can control the suction operation (suction pressure) of the first and second suction devices based on the amount of mud recovered in the mud recovery container and preferably recover mud.

[0013] In this case, when the mud detection sensor determines that a predetermined amount of mud has been recovered in the mud recovery container, the control unit performs a first control to cause the first suction device and the second suction device to perform suction operation and to make the suction pressure of the second suction device greater than that of the first suction device, and when the mud detection sensor determines that a predetermined amount of mud has not been recovered in the mud recovery container while performing the first control, the control unit performs a second control to stop the first suction device and cause the second suction device to perform suction operation, and when the mud detection sensor determines that a predetermined amount of mud has been recovered in the mud recovery container while performing the second control, the control unit performs a third control to cause the first suction device to perform suction operation and the second suction device to perform suction operation. With the above configuration, for example, if mud becomes trapped in the first hose, the mud can be removed by utilizing the suction pressure from the second suction device, and after the mud has been removed, the system returns to normal and the first and second suction devices can operate. Effect of the Invention

[0014] According to the mud recovery system of the present invention, the hose can be handled more easily than in the past, and mud that has accumulated under the floor can be efficiently recovered. Furthermore, mud is less likely to accumulate inside the hose, making it easier to deal with any mud that does accumulate inside the hose. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a configuration diagram of a mud recovery system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an explanatory diagram of the mud recovery container, the first hose, the second hose, and the third hose, showing the state in which the mud recovery system is performing a normal suction operation. [Diagram 3] FIG. 13 is a diagram showing a state in which mud clogging has occurred in a first hose in the mud recovery system. [Figure 4] FIG. 4 is a continuation of FIG. 3 and shows a state in which the first hose is cleared of clogging with mud. [Diagram 5] FIG. 5 is a continuation of FIG. 4 and shows the mud recovery system again performing normal suction operation. [Figure 6] FIG. 4 is a process flow diagram showing a method for controlling the suction operation by the mud recovery system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a "mud recovery system" that is used when recovering mud that has accumulated under the floor of a building, making it easy to handle the hose and enabling the mud that has accumulated under the floor to be efficiently recovered.

[0017] <Mud recovery system> As shown in Figure 1, the mud recovery system S is used when flooding occurs due to a typhoon, heavy rain, etc., and water reaches under or above the floor of a building B, such as a house. More specifically, the mud recovery system S is used to efficiently recover mud M (which may be muddy water) that has accumulated in the underfloor B2 (underfloor space) located under the floor B1 of the building B. "Flooding above the floor" refers to a state in which the water is above the floor of a building (home) and exceeds 45cm above ground level. "Flooding below the floor" refers to a state in which the water is below the foundation of a building and not more than 45cm above ground level. For example, by law, the height of a building floor must be at least 45cm from the ground directly below it to the top of the floor.

[0018] Specifically, the mud recovery system S is mainly composed of a mud recovery head 1, a first hose 10, and a mud recovery container 20 installed under the floor B2 of building B, a second hose 30 and a third hose 40 extending from the under the floor B2 of building B to the outdoors, a first suction device 50, a mud recovery box 60, a fourth hose 70, a second suction device 80, and a generator 90 installed outdoors of building B, and an information processing device 100 operated indoors or outdoors of building B.

[0019] The mud recovery head 1 is a hollow head member connected to the tip of the first hose 10, and sucks up mud M accumulated under the floor B2 in association with the suction operation of the first suction device 50 (second suction device 80). Specifically, the mud recovery head 1 has a hollow head body 2, a head port 3 provided at the tip of the head body, and a hose connection part 4 provided at the end of the head body and connected to the first hose.

[0020] The first hose 10, the second hose 30, the third hose 40, and the fourth hose 70 are transfer hoses (transfer pipes) for transferring air and mud M (muddy water). The first hose 10 is a hose for mainly passing the mud M accumulated under the floor B2, and connects the mud recovery head 1 and the mud recovery container 20. The second hose 30 is a hose that mainly exhausts air from within the mud recovery container 20, and connects the mud recovery container 20 to the first suction device 50. The third hose 40 is a hose that mainly passes the mud M temporarily collected in the mud collection container 20 to the mud collection box 60. The fourth hose 70 is a hose that mainly exhausts air from within the mud recovery box 60, and connects the mud recovery box 60 to the second suction device 80. 1, the first hose 10 extends along an underfloor B2 of the building B. The second hose 30 and the third hose 40 extend from the underfloor B2 through an underfloor opening B3, from inside the building B to outside. The fourth hose 70 is disposed outside the building B.

[0021] A check valve 31 for preventing backflow of air and mud is attached to the second hose 30. Check valves may also be attached to the first hose 10, the third hose 40, and the fourth hose 70.

[0022] 1 and 2, the mud recovery container 20 is a box-shaped container (sealed container) having a size that allows it to be installed under the floor B2 of the building B. For example, it has a height of about 30 to 40 cm so that it can fit under the floor B2, and a length of about 40 to 50 cm in both length and width so that it can pass through the underfloor opening B3. The mud recovery container 20 is capable of recovering mud M inside by exhausting air from within the container body 21 through the second hose 30 through the suction action of the first suction device 50, and sucking up mud M through the first hose 10.

[0023] The mud collection container 20 has a container body 21 for collecting mud M, a lid portion 22 that covers the container body 21 from above, a first hose connection portion 23 connected to the first hose 10, a second hose connection portion 24 connected to the second hose 30, and a third hose connection portion 25 connected to the third hose 40. In addition, the mud recovery container 20 further includes a mud detection sensor 26 that is attached inside the container body 21 and detects whether the amount of mud M recovered in the container body 21 has reached a predetermined amount or exceeded a predetermined amount.

[0024] The mud recovery container 20 temporarily recovers the mud M therein while creating a vacuum state (low vacuum state) inside the container body 21 by the suction action of the first suction device 50 (second suction device 80). The first hose connection portion 23 is attached to the upper portion of the side of the container body 21. The second hose connection part 24 is attached to the upper part (lid part 22) of the container body 21 in order to expel air inside the container body 21 in an appropriate manner. The third hose connection portion 25 is attached to a lower portion of the side portion of the container body 21 in order to suitably discharge the mud M accumulated inside the container body 21.

[0025] The mud detection sensor 26 is, for example, a float sensor (also called a float switch or a level sensor), and is disposed at a predetermined height position of the container body 21. The mud detection sensor 26 is connected to the information processing device 100 via communication, detects when the collected amount of mud M reaches a predetermined amount, and transmits a detection signal to the information processing device 100.

[0026] As shown in FIG. 1, the first suction device 50 and the second suction device 80 are also called vacuum devices, and are devices that receive electricity from a generator 90 to perform a suction operation. The generator 90 is a device that generates electricity, for example, by electromagnetic induction, and supplies the electricity to the suction devices 50, 80. The generator 90 is installed outside the building B together with the suction devices 50, 80. The first suction device 50 performs a suction operation to recover the mud M accumulated under the floor B2 through the mud recovery head 1 and the first hose 10 into the mud recovery container 20. The second suction device 80 performs a suction operation to recover the mud M recovered in the mud recovery container 20 through the third hose 40 into the mud recovery box 60. In the first suction device 50 and the second suction device 80, the operation is turned on and off manually or by control of the information processing device 100, and the set value of the suction pressure (vacuum pressure) is also manipulated.

[0027] As shown in FIG. 1, the mud recovery box 60 is formed larger than the mud recovery container 20 and is used to collect the mud M therein, and is, for example, a mud recovery box such as a drum can. The mud recovery container 20 is used to temporarily collect the mud M, and the mud recovery box 60 is used to transfer and collect the mud M from the mud recovery container 20. The mud recovery box 60 has a box body 61, a lid portion 62, a third hose connection portion 63 connected to the third hose 40, and a fourth hose connection portion 64 connected to the fourth hose 70. In addition, the mud recovery box 60 may further include a bag-shaped sandbag for collecting the mud M.

[0028] In the above configuration, as shown in Fig. 1, in the mud recovery system S, a small mud recovery container 20 is installed under the floor B2 of a building B. Therefore, the length of the hose can be made shorter than in the past (the length of each hose can be shortened by using multiple hoses), making it easier to handle the hose. In other words, it is possible to avoid the hose becoming heavy due to the weight of the mud being added when a single hose becomes longer. Furthermore, by providing the mud recovery container 20 and the mud recovery box 60, the lift (suction lift) can be lowered when the mud M accumulated under the floor B2 is sucked into the mud recovery container 20 (mud recovery box 60). Therefore, even if the suction power of the suction devices 50, 80 is set low, the mud M can be suitably collected. For example, it is possible to use a home suction device (voltage 100V specification) instead of a commercial suction device (voltage 200V specification).

[0029] Also, in the above configuration, as shown in Figure 2, when the mud recovery system S is performing "normal suction operation", the first suction device 50 performs suction operation to exhaust air inside the mud recovery container 20, and the second suction device 80 performs suction operation to transfer the mud M inside the mud recovery container 20 to the mud recovery box 60. The suction pressure (kPa) by the second suction device 80 is set to be greater than the suction pressure by the first suction device 50 when the first suction device 50 and the second suction device 80 perform their suction operations. In this way, by dividing the function of the first suction device 50 (mainly the function of discharging air) and the function of the second suction device 80 (mainly the function of discharging mud), the mud M accumulated under the floor can be efficiently collected. In addition, by making the suction pressure of the second suction device 80 higher than that of the first suction device 50, the mud M collected in the mud collection container 20 can be efficiently transferred to the mud collection box 60.

[0030] In the above configuration, a case is assumed in which first hose 10 is clogged with mud as shown in Figs. At this time, the suction pressure of the first suction device 50 is not enough to remove the mud stuck in the first hose 10. In this case, the second suction device 80 performs a suction operation with a suction pressure greater than that of the first suction device 50 to transfer the mud stuck in the first hose 10 to the inside of the mud recovery container 20. By doing so, even if the first hose 10 is clogged with mud, the clog can be cleared. In other words, after the second suction device 80 has completely transferred the mud in the mud recovery container 20, it sucks the mud clogged in the first hose 10 so as to discharge it into the mud recovery container 20. In other words, the second suction device 80 functions to discharge the mud into the mud recovery container 20 together with the first suction device 50 or instead of the first suction device 50.

[0031] When mud clogging occurs in the first hose 10, the mud clogging can be eliminated by setting the suction pressure of the second suction device 80 to be greater than that of the first suction device 50, as described above. On the other hand, mud accumulated under the floor can be more efficiently collected by controlling the operation of the suction devices 50, 80 using the information processing device 100. This will be described in detail below.

[0032] <Control by information processing device> As shown in FIG. 1, the information processing device 100 is a computer having a CPU (processor), a storage device, and a communication interface, and is communicatively connected to the first suction device 50, the second suction device 80, and the mud detection sensor 26. The information processing device 100 controls the suction operations of the first suction device 50 and the second suction device 80 based on the detection result by the mud detection sensor 26. The information processing device 100 may be operated by an operator inside the building B, or may be operated outside the building B.

[0033] From the functional aspect, the information processing device 100 mainly comprises a storage unit 101 for temporarily storing various programs and various data, a communication unit 102, a determination unit 103, and an operation control unit (control unit) 104. These are constituted by a CPU (processor), a ROM, a RAM, a HDD, a communication interface, various programs, etc.

[0034] The operation control unit 104 of the information processing device 100 controls the first suction device 50 and the second suction device 80 to perform a "normal suction operation" as shown in Fig. 2. Then, when an abnormality occurs, the operation control unit 104 controls the first suction device 50 and the second suction device 80 based on a detection signal from the mud detection sensor 26 as shown in Figs. 3 to 5. Specifically, the following applies:

[0035] The operation control section 104 controls the first suction device 50 to perform a suction operation. Then, when the judgment unit 103 determines that a predetermined amount of mud has been collected in the mud collection container 20 by the mud detection sensor 26, the operation control unit 104 performs a "first control" in which the first suction device 50 and the second suction device 80 perform suction operation and the suction pressure of the second suction device 80 is made greater than that of the first suction device 50. Then, when the above-mentioned "first control" is being performed, when the judgment unit 103 determines that the mud detection sensor 26 has not collected a predetermined amount of mud in the mud collection container 20, the operation control unit 104 performs "second control" by stopping the first suction device 50 and causing the second suction device 80 to perform suction operation. Then, during the above-mentioned "second control", when the judgment unit 103 determines that a predetermined amount of mud has been collected in the mud collection container 20 by the mud detection sensor 26, the operation control unit 104 performs "third control" to cause the first suction device 50 to perform suction operation and the second suction device 80 to perform suction operation.

[0036] With the above control, for example, if mud accumulates in the first hose 10, the mud can be removed by utilizing the suction pressure of the second suction device 80, and after the mud has been removed, the system returns to normal (normal suction operation) and the first and second suction devices 50, 80 can be operated. A more specific control method is as shown in the process flow of FIG.

[0037] <Control method by information processing device> Next, the process of the control method (control program) for the suction operation by the mud recovery system S will be described with reference to FIG. The above program is executed upon receiving an operational instruction from an operator, and starts from a state in which the first suction device 50 and the second suction device 80 are inactive (operation OFF). The above program is repeatedly executed until a stop instruction is received from the operator.

[0038] The process flow shown in FIG. 6 starts with step 1 (S1) in which the information processing device 100 (determination unit 103) determines whether the first suction device 50 is operating (whether its operation is ON) or not. If it is determined that the first suction device 50 is in an ON state (step 1: Yes), the process proceeds directly to step 2. On the other hand, if it is determined that the first suction device 50 is not turned on (step 1: No), the process proceeds to step 3. In step 3, the operation control unit 104 controls the operation of the first suction device 50 to be turned on, and then the process proceeds to step 2. As a result, the first suction device 50 can perform a suction operation to collect mud accumulated under the floor into the mud collection container 20 through the first hose 10.

[0039] In step 2, the determination unit 103 determines, by the mud detection sensor 26, whether a predetermined amount of mud has been recovered in the mud recovery container 20 or not. If it is determined that a predetermined amount of mud has been collected in the mud collection container 20 (step 2: Yes), the process proceeds to step 4. On the other hand, if it is determined that the predetermined amount of mud has not been collected in the mud collection container 20 (step 2: No), the process proceeds to END of the process flow shown in Fig. 6. (Strictly speaking, the process returns to step 1 since the process is repeated.)

[0040] In step 4, the operation control section 104 controls the operation of the second suction device 80 to be ON. As a result of the above, the second suction device 80 performs a suction operation to collect the mud collected in the mud collection container 20 into the mud collection box 60 through the third hose 40. The operation control unit 104 controls the suction pressure of the second suction device 80 to be greater than that of the first suction device 50.

[0041] In step 5, the determination unit 103 determines whether or not a predetermined amount of mud has been recovered in the mud recovery container 20 by the mud detection sensor . When it is determined that a predetermined amount of mud has been collected in the mud collection container 20 (step 5: Yes), the process proceeds to step 6. This means that the first suction device 50 and the second suction device 80 perform their suction operations normally, and mud M is recovered from under the floor B2 of the building B without mud clogging occurring in the hoses in the mud recovery system S.

[0042] In step 6, the determination unit 103 determines whether the operation of the first suction device 50 is OFF or not. If it is determined that the first suction device 50 is OFF (step 6: Yes), the process proceeds to step 7. In step 7, the operation control unit 104 controls the operation of the first suction device 50 to be ON, and then the process proceeds to END of the process flow shown in FIG. 6 (strictly speaking, the process returns to step 1). On the other hand, if it is determined that the first suction device 50 is not in the operation OFF state (step 6: No), the process proceeds directly to the END of the process flow shown in FIG. This means that when the first suction device 50 is temporarily in a stopped state (operation OFF), the operation control section 104 starts the operation of the first suction device 50 (operation ON).

[0043] In step 5, if it is determined that the predetermined amount of mud has not been collected in the mud collection container 20 (step 5: No), the process proceeds to step 8. This means that the mud recovery system S is in a state where the first hose 10 is clogged with mud, as shown in FIG. Then, in step 8, the judgment unit 103 judges whether the operation of the first suction device 50 is ON. If the answer is Yes in step 8, the process proceeds to step 9, where the operation control unit 104 stops the operation of the first suction device 50 (turns the operation OFF). This means that, as shown in Fig. 4, after the second suction device 80 has completely transferred the mud in the mud recovery container 20, it sucks the mud stuck in the first hose 10 so as to discharge it into the mud recovery container 20. In other words, this means that the second suction device 80 functions to discharge the mud into the mud recovery container 20 instead of the first suction device 50. This also means that the operation of the first suction device 50 is temporarily stopped. Then, the process proceeds to END of the process flow shown in Figure 6. (To be precise, the process returns to step 1.)

[0044] In step 8, if it is determined that the first suction device 50 is not in an ON state (step 8: No), the process returns to step 5. This means that, as shown in Fig. 4, the second suction device 80 continues to function to discharge mud into the mud recovery container 20 in place of the first suction device 50. When a predetermined amount of mud has been recovered into the mud recovery container 20 as shown in Fig. 5, the operation control unit 104 restarts the operation of the first suction device 50, restoring the normal suction operation shown in Fig. 2.

[0045] As described above, the process flow shown in Fig. 6 is repeatedly executed, and when a stop instruction is received from the worker, the process is completely terminated. In other words, this means that the mud M has been collected from under the floor B2 of the building B, and the work by the mud collection system S has ended.

[0046] The mud recovery system S (mud recovery method using the mud recovery system S) makes it easier to handle the hose than ever before, and can effectively recover mud that has accumulated under the floor. In addition, mud is less likely to accumulate in the hose, and even if the hose becomes clogged with mud, the clog can be effectively cleared.

[0047] <Other embodiments> In the above embodiment, as shown in Fig. 1, the mud recovery container 20 is installed under the floor B2 of the building B, but this is not particularly limited and may be installed on an indoor floor of the building B. In other words, the mud recovery container 20 may be installed in a position closer to the under floor B2 than the mud recovery box 60.

[0048] In the above embodiment, as shown in Fig. 1, the mud recovery system S includes the information processing device 100, but is not particularly limited, and may not include the information processing device 100. In other words, an operator may manually operate the suction operations of the first suction device 50 and the second suction device 80.

[0049] In the above embodiment, the mud recovery system according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof. In particular, the above-described embodiment is merely an example and does not limit the present invention. [Explanation of symbols]

[0050] S Mud Recovery System 1 Mud recovery head 2 Head body 3 Head opening 4 Hose connection 10 First hose (first hose) 20 Mud collection container 21 Container body 22 Lid 23 First hose connection 24 Second hose connection 25 Third hose connection 26 Mud detection sensor 30 Second hose (Second hose) 31 Check valve 40 Third Hose (Third Hose) 50 First suction device (first suction device) 60 Mud Collection Box 61 Box body 62 Lid 63 Third hose connection 64 4th hose connection 70 4th hose (4th hose) 80 Second suction device (second suction device) 90 Generator 100 Information processing device 101 Storage section 102 Communications Department 103 Judgment Department 104 Operation control section (control section) B Building B1 floor B2 Underfloor (underfloor space) B3 Underfloor Entrance M mud

Claims

1. A mud recovery system used to recover mud accumulated under the floor of a building, A mud recovery head for recovering mud accumulated under the floor; A mud recovery container connected to the mud recovery head through a first hose and configured to collect the mud therein; a first suction device connected to the mud recovery container through a second hose; A mud recovery box that is connected to the mud recovery container through a third hose and is larger than the mud recovery container and collects the mud therein; a second suction device connected to the mud recovery box through a fourth hose; The mud recovery container is disposed closer to the underfloor than the mud recovery box, The first suction device performs a suction operation to recover the mud accumulated under the floor through the mud recovery head and the first hose into the mud recovery container, A mud recovery system characterized in that the second suction device performs a suction operation to recover the mud recovered in the mud recovery container through the third hose into the inside of the mud recovery box.

2. The first suction device, the second suction device, and the mud recovery box are disposed outdoors of the building; The mud recovery system according to claim 1, characterized in that the mud recovery container is placed inside the building and temporarily collects the mud.

3. The first suction device is connected to an upper portion of the mud recovery container through the second hose and performs a suction operation to exhaust air from inside the mud recovery container; The second suction device is connected to a lower portion of the mud recovery container through the fourth hose, the mud recovery box, and the third hose, and performs a suction operation to transfer the mud inside the mud recovery container to the mud recovery box; The mud recovery system described in claim 2, characterized in that when the first suction device and the second suction device each perform a suction operation, the suction pressure by the second suction device is greater than the suction pressure by the first suction device.

4. The first suction device performs a suction operation to recover the mud accumulated under the floor through the first hose into the mud recovery container, The mud recovery system described in claim 3, characterized in that the second suction device performs a suction operation to recover the mud accumulated inside the first hose into the mud recovery container using a suction pressure greater than that of the first suction device.

5. A mud detection sensor attached to the mud recovery container and detecting when the amount of the mud recovered in the mud recovery container has reached a predetermined amount or is greater than or equal to a predetermined amount; A mud recovery system as described in any one of claims 1 to 4, characterized in that it is further equipped with a control unit that controls the suction operation of the first suction device and the second suction device based on the detection results by the mud detection sensor.

6. The control unit is When the mud detection sensor determines that a predetermined amount of mud has been collected in the mud collection container, a first control is performed to cause the first suction device and the second suction device to perform suction operation and to make the suction pressure of the second suction device greater than that of the first suction device; When the mud detection sensor determines that a predetermined amount of mud has not been collected in the mud collection container during the first control, the first suction device is stopped and the second suction device is caused to perform a suction operation. The mud recovery system described in claim 5, characterized in that when the second control is being performed, when the mud detection sensor determines that a predetermined amount of mud has been recovered in the mud recovery container, a third control is performed in which the first suction device is caused to perform suction operation and the second suction device is caused to perform suction operation.

Images