Hose collection apparatus

Abstract

A hose recovery device according to one embodiment of the present invention comprises: a plate on which a hose is placed; a frame extending upward on the plate; a roller part supported by the frame and pulling the hose in one direction; a power part provided on the plate and providing power to the roller part; and a coupling part formed on the plate and having a structure coupled to a working device.

Description

Technology Field

[0001] The present invention relates to a hose recovery device. Background Technology

[0002] In general, sewer pipes buried underground accumulate soil, mud, and foreign matter due to long-term use, so it is necessary to remove and clean these deposits. Additionally, over time, cracks may form in the pipes or defects may occur at the connections. Therefore, it is necessary to inspect or maintain the sewer pipes.

[0003] In order to inspect or maintain sewer pipes, the inside of the sewer pipes needs to be emptied. Therefore, it is necessary to prevent sewage from flowing into the area to be inspected or maintained and to discharge the sewage filled in that area to the outside.

[0004] A pump may be used to discharge sewage from an underground structure, such as a sewer pipe. In this case, sewage from the underground structure may be discharged to the outside while the hose is connected to a pump installed above ground or while the pump is installed underground.

[0005] However, since the depth of the above underground structure varies depending on the height of the ground, the length of the hose extension or the height at which the pump is installed needs to be adjusted.

[0006] Meanwhile, the hose needs to be retrieved after maintenance of the underground structure. Some sewage may remain in the hose. This sewage can increase the weight of the hose. If the weight increases, more manpower may be required to move the hose. Therefore, it is necessary to retrieve the hose while removing the sewage.

[0007] Additionally, one end of the hose is connected to an underground structure, and the other end can be connected to a tank or the like located at a distance from the underground structure. Once the work is finished, a hose of a certain length can be extended on the ground. The hose can be retrieved by pulling it using a retrieval device such as a roller, but the further the hose is located from the retrieval device, the greater the load placed on the device.

[0008] Therefore, there is a need to develop technologies for positioning pumps according to the depth of underground structures and for efficiently recovering hoses. The problem to be solved

[0009] The present invention was created to solve the problems of the prior art as described above, and the objective of the present invention is to provide a hose recovery device for efficiently performing maintenance on underground structures.

[0010] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0011] A hose recovery device according to one aspect of the present invention comprises: a plate on which a hose is placed; a frame extending upward on the plate; a roller part supported by the frame and pulling the hose in one direction; a power part provided on the plate and providing power to the roller part; and a coupling part formed on the plate and having a structure coupled to a working device.

[0012] The above roller section can be arranged in multiple adjacent units to compress the hose.

[0013] The above-mentioned connecting part can be connected to the end of the excavator's arm.

[0014] The above frame includes a horizontal frame extending in a horizontal direction; and the horizontal frame may have a shape in which at least a portion is inclined downward.

[0015] It may include a horizontal maintaining member provided on the horizontal frame and assisting in maintaining the horizontal of the horizontal frame.

[0016] The roller part above can pull the hose while the plate is coupled to the working device.

[0017] The above plate can move in the opposite direction to the direction in which the hose is pulled by the above working device. Effects of the invention

[0018] A hose recovery device according to one embodiment of the present invention can efficiently recover hoses after maintenance of underground structures.

[0019] In addition, the underground structure maintenance system according to one embodiment of the present invention can position the pump at an appropriate height of the underground structure.

[0020] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0021] FIG. 1 is a drawing showing a hose recovery device according to one embodiment of the present invention. FIG. 2 is a drawing showing a hose passing through a roller section of a hose recovery device according to one embodiment of the present invention. FIG. 3 is a drawing showing the arm of a working device approaching a hose recovery device according to one embodiment of the present invention. FIG. 4 is a drawing showing a working device coupled to a coupling part of a hose recovery device according to one embodiment of the present invention. FIG. 5 is a side view of a hose recovery device according to one embodiment of the present invention. Figure 6 is a photograph showing the roller part of a hose recovery device according to one embodiment of the present invention. FIG. 7 is a photograph showing the horizontal frame of a hose recovery device according to one embodiment of the present invention. FIG. 8 is a photograph showing a hose recovery device and a working device combined according to one embodiment of the present invention. FIG. 9 is a drawing showing an underground structure maintenance system according to one embodiment of the present invention. FIG. 10 is a drawing showing a pumping unit moved to the lower part of an underground structure in an underground structure maintenance system according to one embodiment of the present invention. FIG. 11 is a drawing showing the filter section of the pumping unit in an underground structure maintenance system according to one embodiment of the present invention. FIG. 12 is a drawing showing an underground structure maintenance system according to another embodiment of the present invention. FIG. 13 is a drawing showing a pumping unit moved to the lower part of an underground structure in an underground structure maintenance system according to another embodiment of the present invention. Specific details for implementing the invention

[0022] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. It should be noted that in assigning reference numbers to the components of each drawing in this specification, the same components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of the invention.

[0023] In addition, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that all modifications, equivalents, and substitutions included within the concept and technical scope of the present invention are included.

[0024] Additionally, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0025] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0026] FIG. 1 is a drawing showing a hose retrieval device according to an embodiment of the present invention. FIG. 2 is a drawing showing a hose passing through a roller section (22) of a hose retrieval device according to an embodiment of the present invention. FIG. 3 is a drawing showing an arm of a work device approaching a hose retrieval device according to an embodiment of the present invention. FIG. 4 is a drawing showing a work device coupled to a coupling section (40) of a hose retrieval device according to an embodiment of the present invention. FIG. 5 is a side view of a hose retrieval device according to an embodiment of the present invention. FIG. 6 is a photograph showing a roller section (22) of a hose retrieval device according to an embodiment of the present invention. FIG. 7 is a photograph showing a horizontal frame (21) of a hose retrieval device according to an embodiment of the present invention. FIG. 8 is a photograph showing a hose retrieval device and a work device coupled according to an embodiment of the present invention.

[0028] Referring to FIGS. 1 to 8, a hose recovery device (1) according to one embodiment of the present invention comprises: a plate (10) on which a hose (H) is placed; a frame (21) extending upward on the plate (10); a roller part (22) supported by the frame (21) and pulling the hose (H) in one direction; a power part (30) provided on the plate (10) and providing power to the roller part (22); and a coupling part (40) formed on the plate (10) and having a structure that is coupled with a working device.

[0029] The above plate (10) may be a flat plate-shaped member. The above plate (10) may be made of metal. For example, the above plate (10) may be made of iron.

[0030] A frame (21) may be provided on the plate (10). A hose (H) may be loaded on the plate (10). The hose (H) may be folded and stacked in one area on the plate (10). A partition (11, 12) that partitions the area where the hose (H) is stacked may be provided on the plate (10).

[0031] The above-mentioned compartments (11, 12) may be provided in the central part of the plate (10). The above-mentioned compartments (11, 12) may be provided at the lower part of the frame (21) or the roller part (22). A hose (H) that has passed through the frame (21) or the roller part (22) may be seated inside the above-mentioned compartments (11, 12).

[0032] The above-mentioned section (11, 12) may have a shape that protrudes upward from the plate (10). The above-mentioned section (11, 12) may include a first section (11) formed facing in a direction parallel to the longitudinal direction of the roller section (22), and a second section (12) formed spaced apart from the roller section (22) relative to the first section (11). The first section (11) may support the hose (H) in the width direction of the hose (H), and the second section (12) may support the hose (H) in the longitudinal direction of the hose (H).

[0033] The second section (12) can fold the hose (H) recovered through the roller section (22). Specifically, the hose (H) passing through the roller section (22) can be caught on the second section (12) and folded in the opposite direction of the second section (12) it struck. The second section (12) may have a height greater than a certain value.

[0034] A recovery unit (20) may be provided on the plate (10). The recovery unit (20) may include the frame (21) and the roller unit (22). The recovery unit (20) may recover a used hose (H). The hose (H) may be used for various purposes, such as draining water or collecting foreign substances, but the present invention is not limited thereto.

[0035] The above frame (21) may include a vertical frame (211, 212) extending upward from the plate (10) and a horizontal frame (213, 214) extending from the vertical frame (211, 212) in a direction parallel to the plate (10).

[0036] The vertical frames (211, 212) may extend in a straight line upward from the plate (10). The vertical frames (211, 212) may extend vertically from the plate (10). The vertical frames (211, 212) may have a rod shape.

[0037] The above vertical frames (211, 212) may include a first vertical frame (211) extending to a first height and a second vertical frame (212) extending to a second height lower than the first height.

[0038] At least a portion of the roller section (22) may be provided on the first vertical frame (211). Multiple roller sections (22) may be arranged vertically on the first vertical frame (211). A hose (H) may be compressed as it passes between the roller sections (22).

[0039] The first vertical frame (211) may be composed of a plurality of members. Some of the first vertical frames (211) may extend to a first height from the plate (10), and some of the first vertical frames (211) may extend to a first height from the first horizontal frame (213). The first roller section (221) may be provided between the plurality of first vertical frames (211).

[0040] The second vertical frame (212) can support the horizontal frame. The second vertical frame (212) can reinforce the strength of the horizontal frame.

[0041] The above horizontal frames (213, 214) may include a first horizontal frame (213) extending in a direction (horizontal direction) parallel to the plate (10) at a second height, and a second horizontal frame (214) extending in a direction parallel to the plate (10) at a first height higher than the second height. The first horizontal frame (213) may be extended longer than the second horizontal frame (214).

[0042] One end of the first horizontal frame (213) is connected to the first vertical frame (211), and at least a portion of the roller part (22) can be seated on the other end. At least a portion of the roller part (22) can be provided at the end of the first horizontal frame (213) opposite to the first vertical frame (211).

[0043] One end of the second horizontal frame (214) is connected to the first vertical frame (211), and at least a portion of the roller part (22) can be seated on the other end. At least a portion of the roller part (22) can be provided at the end of the second horizontal frame (214) opposite to the first vertical frame (211).

[0044] The second horizontal frame (214) may have a shape in which at least a portion is inclined downward.

[0045] A horizontal maintaining member (216) that assists in maintaining the horizontal position of the second horizontal frame (214) may be provided on the second horizontal frame (214). The horizontal maintaining member (216) may have both ends fixed to both ends of the second horizontal frame (214). The horizontal maintaining member (216) may include a tension member having tension, such as a chain. The horizontal maintaining member (216) can prevent one end of the second horizontal frame (214) from sagging in the direction of gravity.

[0046] The second horizontal frame (214) and the first vertical frame (211) are orthogonal, and a reinforcing frame (215) may be provided at the point where the second horizontal frame (214) and the first vertical frame (211) meet. The reinforcing frame (215) may support the second horizontal frame (214) from below. The reinforcing frame (215) may be provided without limitation at any location where the vertical frame and the horizontal frame meet.

[0047] The tension of the horizontal maintaining member (216) can be adjusted. For example, the tension of the horizontal maintaining member (216) can be adjusted by tension adjusting members (not shown) provided at both ends. The tension adjusting members can adjust the tension of the tension member by adjusting the length of the tension member.

[0048] The roller portion (22) may be supported on the frame (21). Both longitudinal ends of the roller portion (22) may be supported on the frame (21). Specifically, the roller portion (22) may be rotatably coupled to the frame (21). The configuration or method of fixing or installing the roller portion (22) on the frame (21) may be applied without limitation.

[0049] The roller part (22) has a cylindrical shape and can rotate in the circumferential direction of the cylinder. The roller part (22) can pull the hose (H) that is seated in one direction using rotational force. Both ends of the roller part (22) may receive power through a connecting member such as a chain or belt, but the present invention is not limited thereto.

[0050] The roller section (22) may include a first roller section (221) provided on a first vertical frame (211), a second roller section (222) provided on a second horizontal frame (214), and a third roller section (223) provided on a first horizontal frame (213).

[0051] The first roller part (221) can move up and down along the first vertical frame (211), and the installation height can be adjusted.

[0052] The second roller part (222) can move horizontally along the second horizontal frame (214). The second roller part (222) can move toward the first vertical frame (211) along the second horizontal frame (214). The second roller part (222) can be fixed to the first vertical frame (211).

[0053] Referring to FIG. 6, the first roller part (221) and the second roller part (222) can be arranged vertically. The distance between the first roller part (221) and the second roller part (222) can be adjusted by moving the first roller part (221).

[0054] Referring to FIG. 6, the third roller section (223) may be spaced apart horizontally from the first roller section (221) or the second roller section (222). Specifically, the third roller section (223) may be positioned far apart from the vertical frame (211) relative to the first roller section (221) or the second roller section (222). The third roller section (223) may be positioned below the first roller section (221) or the second roller section (222).

[0055] Referring to FIG. 2, the hose (H) supported by and passing through the third roller section (223) can pass between the first roller section (221) and the second roller section (222).

[0056] The third roller section (223) can bend the hose (H) to discharge residual material inside the hose (H). The first roller section (221) and the second roller section (222) can compress the hose (H) to discharge residual material inside the hose (H). The first roller section (221) and the second roller section (222) can compress the hose (H) to pull the hose (H) in one direction.

[0057] Additionally, the roller section (22) may include a fourth roller section (224) formed on the vertical frames (211, 212) and arranged in a direction parallel to the vertical frames (211, 212). Specifically, the fourth roller section (224) may be provided on the first vertical frame (211). The fourth roller section (224) may be provided on each of the first vertical frames (211) facing each other.

[0058] The fourth roller section (224) can support the width direction of the hose (H). For example, it can support the width direction of the hose (H) when the hose (H) passes through the first vertical frame (211). The hose (H) can be pulled in a direction perpendicular to the first vertical frame (211).

[0059] A power unit (30) is provided on the plate (10) and can provide power to the roller unit (22). Specifically, the power unit (30) can provide rotational force to the roller unit (22). The power unit (30) can provide rotational force to at least some of the plurality of roller units (22). For example, the power unit (30) can provide rotational force to the first roller unit (221). The power unit (30) can provide power to the roller unit (22) using electricity, hydraulics, etc., but the present invention is not limited thereto.

[0060] The power unit (30) may be provided on one side of the plate (10). The power unit (30) may be provided on one side of the plate (10) and connected to one side of the roller unit (22).

[0061] The connecting portion (40) may be formed on the plate (10) and may have a structure that is connected to a working device. The connecting portion (40) may include a plurality of facing plate-shaped members (41) and a connecting member (42) connecting the plate-shaped members (41). The plate-shaped members (41) may be welded to the plate (10), but the present invention is not limited thereto. The connecting member (42) may be bolted to the plate-shaped members (41), but the present invention is not limited thereto.

[0062] The above-mentioned coupling part (40) may be coupled to a work device. The work device may be heavy equipment such as an excavator, but the present invention is not limited thereto. The above-mentioned coupling part (40) may be coupled to a drive part (not shown), such as the arm of an excavator. Specifically, the above-mentioned coupling part (40) may be coupled to the end of the arm.

[0063] The above driving unit may be combined with auxiliary equipment (50) of various shapes. For example, the auxiliary equipment (50) may have a shape corresponding to the shape of the coupling unit (40). Specifically, the auxiliary equipment (50) may have a shape corresponding to the connecting member (42) of the coupling unit (40).

[0064] In detail, the auxiliary equipment (50) may include an auxiliary equipment body (51) connected to a driving unit, a driving unit connecting part (52) connecting the auxiliary equipment body (51) and the driving unit, and a groove (53) provided in the auxiliary equipment body (51) and having a shape corresponding to the connecting member (42).

[0065] Referring to FIG. 8, the auxiliary equipment (50) can lift the connecting member (42) of the coupling part (40). For example, the connecting member (42) may be a rod connecting a plurality of plate-shaped members (41), and the auxiliary equipment (50) may have an end extending between the rods and the end bent toward the connecting member (42) to support the lower portion of the connecting member (42). The auxiliary equipment (50) may be a quick clamp or quick coupler of an excavator, but the present invention is not limited thereto.

[0066] The above work device may be a movable device. The above work device may move while connected to the above coupling part (40). Specifically, the above work device may move while the above coupling part (40) is lifted.

[0067] At this time, the roller part (22) can pull the hose (H) while the plate (10) is connected to the work device. At this time, the plate (10) may be in a lifted state from the ground. Therefore, the height difference between the roller part (22) and the ground may be large. When the hose (H) placed on the ground is pulled by the roller part (22), the hose (H) and the ground may form a large angle. Therefore, sewage, etc. can be efficiently discharged from the hose (H).

[0068] The plate (10) can move in a direction opposite to the direction in which the hose (H) is pulled by the working device. The plate (10) can move toward the position where the hose (H) is placed by the working device.

[0069] If the above hose (H) is located far from the plate (10), a large load may be placed on the power unit (30) to retrieve the above hose (H). A hose retrieval device according to one embodiment of the present invention can reduce the load placed on the power unit (30) by retrieving the hose (H) while the working device moves toward the above hose (H).

[0071] FIG. 9 is a drawing showing an underground structure maintenance system according to an embodiment of the present invention. FIG. 10 is a drawing showing a pumping unit moved to the lower part of an underground structure in an underground structure maintenance system according to an embodiment of the present invention. FIG. 11 is a drawing showing a filter unit of a pumping unit in an underground structure maintenance system according to an embodiment of the present invention.

[0072] Referring to FIGS. 9 to 11, an underground structure maintenance system (100) according to one embodiment of the present invention comprises: a hose (H) inserted into an underground structure (M); and a pumping unit (150) provided at the end of the hose (H) and pumping fluid inside the underground structure (M) to the outside.

[0073] The above underground structure (M) may include a manhole formed on the ground and a manhole structure connecting the manhole and the sewer pipe (L). The above underground structure (M) may be a passageway for a worker to move through or for a work tool to be delivered.

[0074] The above underground structure (M) may be composed of multiple units. The multiple underground structures (M) may have different heights from each other. Additionally, the multiple underground structures (M) may have different volumes. For example, the underground structure (M) may include a first underground structure (M1) and a second underground structure (M2) located adjacent to the first underground structure (M1). The first underground structure (M1) and the second underground structure (M2) may have different volumes or heights from each other.

[0075] The above underground structure (M) may be connected to a sewer pipe (L). The height of the above underground structure (M) may be the same as or different from that of the sewer pipe (L). For example, the above underground structure (M) and the sewer pipe (L) may have the same or similar width and height. However, the present invention is not limited thereto.

[0076] The sewer pipe (L) may be blocked for maintenance of the above underground structure (M) or the above sewer pipe (L). The packing part (P) can block the movement of fluid between a plurality of adjacent underground structures (M).

[0077] After the above sewer pipe (L) is blocked, sewage, etc., can be discharged to the outside from the area requiring maintenance. In addition, sewage from the area requiring maintenance can be transferred to another underground structure.

[0078] The hose (H) can be inserted into the underground structure (M). Specifically, the hose (H) can be inserted through a manhole of the underground structure (M). The hose (H) may include the hose body (110) and an extension hose (120) extending from the hose body (110). For example, the extension hose (120) may be provided inside the hose body (110) and extend downward from the hose body (110). A boundary (130) may be formed between the hose body (110) and the extension hose (120). A packing material (not shown) may be inserted between the hose body (110) and the extension hose (120) to seal the connection between the hose body (110) and the extension hose (120).

[0079] The hose body (110) may be made of a rigid material, and the extension hose (120) may be made of a flexible material. A fixing part (140) may be provided on the outside of the hose body (110) to fix the hose (H) or the pumping part (150) to the side wall of the underground structure (M). The fixing part (140) may be inserted into a narrow manhole and then extend toward the side wall of the underground structure (M). The fixing part (140) may fix the hose body (110) at a fixed position. After the hose body (110) is fixed by the fixing part (140), the extension hose (120) may extend to the bottom of the underground structure (M).

[0080] In detail, the fixed part (140) may include an extension part (not shown) extending toward the side wall and a support part (not shown) provided at the end of the extension part. The support part may have a shape corresponding to the side wall.

[0081] A groove (not shown) into which the support member is inserted may be formed in the above side wall. As the extension member is extended, the support member may be inserted into the groove.

[0082] In addition, the support member may be made of an elastic material such as rubber. Accordingly, as the extension member stretches, the support member is compressed, and the support member may have frictional force against the side wall.

[0083] A pumping unit (150) may be provided at the end of the hose (H). The pumping unit (150) may move up and down by the hose (H). Specifically, the pumping unit (150) may move up and down by the extension hose (120).

[0084] The pumping unit (150) can discharge sewage inside the underground structure (M) to the outside. The pumping unit (150) may be a pump. Specifically, the pumping unit (150) may include an impeller (not shown). A pump equipped with the impeller can suck up sewage within the underground structure without priming water. Additionally, the pump can discharge foreign substances from the sewage along with the sewage.

[0085] The above pumping unit (150) may be a sludge pump that sucks in sludge having a viscosity greater than a certain value, but the present invention is not limited thereto.

[0086] The pumping unit (150) may include a filter unit (160) that surrounds the sewage suction port and filters foreign substances within the underground structure. The filter unit (160) may be a mesh, but the present invention is not limited thereto.

[0088] FIG. 12 is a drawing showing an underground structure maintenance system according to another embodiment of the present invention. FIG. 13 is a drawing showing a pumping unit moved to the lower part of an underground structure in an underground structure maintenance system according to another embodiment of the present invention.

[0089] Referring to FIG. 12 and FIG. 13, an underground structure maintenance system (100) according to one embodiment of the present invention comprises: a hose (H) inserted into an underground structure (M); a pumping unit (150) provided at the end of the hose (H) and pumping fluid inside the underground structure (M) to the outside; a guide unit (170) formed in the height direction of the underground structure (M); and a connecting unit (130a) connecting the guide unit (170) and the hose (H) or the pumping unit (150); wherein the guide unit (170) guides the vertical movement of the hose (H) or the pumping unit (150).

[0090] The guide portion (170) may be fixed to a manhole of the underground structure (M). The guide portion (170) may extend from the manhole to the lower part of the underground structure (M). The guide portion (170) may be a ladder provided in the manhole.

[0091] The above connecting part (130a) can slide along the guide part (170). Specifically, the above connecting part (130a) can slide along the guide part (170) while connected to the hose (H) or the pumping part (150).

[0092] The above connecting part (130a) may be fixed to the hose (H) or the pumping part (150). Specifically, the connecting part (130a) may include a connecting part body (not shown) that surrounds the hose (H) or the pumping part (150) and a guide ring (not shown) that connects the connecting part body and the guide part (170).

[0093] The guide ring may have a shape that wraps around a portion of the circumference of the guide portion (170), which includes a vertically elongated rod (not shown). The guide ring may have a shape corresponding to the rod of the guide portion (170). Specifically, if the horizontal cross-section of the rod is circular, the guide ring may have a shape that wraps around at least a portion of the circumference of the rod. If the guide portion (170) is a ladder, the guide ring may engage with at least a portion of the elongated rod of the ladder.

[0094] The above guide section (170) includes a rod extending vertically in the underground structure (M), and a plurality of rods may be arranged in parallel.

[0095] Additionally, multiple rods may be arranged so that they are close to each other at the bottom of the underground structure (M). That is, multiple rods may be arranged so that they converge toward each other. Multiple guide rings are configured and each is connected to a rod, and multiple guide rings may be spaced apart from each other by a certain distance. Therefore, at a depth where the width of the multiple rods is less than a certain width, the guide rings can no longer move toward the bottom of the underground structure (M) and can be spaced apart from the bottom of the underground structure (M).

[0096] The above rods may be maintained in parallel from the top up to a certain length and may be bent toward each other at a certain length. Accordingly, when the guide portion (170) is inserted into the underground structure (M), the height at which the guide ring is spaced from the bottom of the underground structure (M) can be maintained at a constant level.

[0097] A spacing portion (180) may be provided at the bottom of the guide portion (170). The spacing portion (180) may maintain the pumping portion (150) at a position spaced apart from the bottom of the underground structure (M). The spacing portion (180) may maintain the pumping portion (150) at a position spaced apart from the bottom of the underground structure (M) when the hose (H) or the pumping portion (150) extends to the bottom of the underground structure (M). The pumping portion (150) may discharge sewage from the underground structure (M) through an impeller provided at the bottom.

[0098] The above separation portion (180) may include a buffer portion (not shown) provided between the guide rings. The buffer portion may support the guide rings and separate the pumping portion (150) from the floor of the underground structure (M). In this case, the buffer portion may be made of an elastic material to reduce the impact applied to the pumping portion (150), etc. Additionally, the buffer portion may include a hydraulic damper or a hydraulic cylinder. The buffer portion may be provided at the bottom of the guide rings, in which case the buffer portion of the separation portion (180) may be omitted.

[0099] In addition, the above separation part (180) can support the lower end of the pumping part (150) to prevent the pumping part (150) from colliding with the floor of the underground structure (M).

[0100] A maintenance system for an underground structure (100) according to one embodiment of the present invention can recover a hose (H) through a hose recovery device (1) according to one embodiment of the present invention after the maintenance of the underground structure is completed. The hose recovery device (1) includes: a plate (10) on which the hose (H) is placed; a frame (21) extending upward on the plate (10); a roller part (22) supported by the frame (21) and pulling the hose (H) in one direction; a power part (30) provided on the plate (10) and providing power to the roller part (22); and a coupling part (40) formed on the plate (10) and having a structure that is coupled with a work device.

[0101] A system for maintaining an underground structure (100) according to one embodiment of the present invention may be used in a method for maintaining an underground structure. The method for maintaining an underground structure may include: a step of partially inserting a hose (H) into an underground structure (M); a step of installing a guide section (170) formed in the height direction of the underground structure (M) on the inner side of the underground structure (M); a step of connecting the guide section (170) to a pumping section (150) provided at the end of the hose (H) or the hose (H) and pumping fluid inside the underground structure (M) to the outside; and a step of lowering the hose (H) or the pumping section (150) to the bottom of the underground structure (M) along the guide section (170).

[0102] The above method for maintaining an underground structure may further include the step of fixing the hose (H) or the pumping unit (150) to the side wall of the underground structure (M). Additionally, the above method for maintaining an underground structure may further include the step of maintaining the bottom of the hose (H) or the pumping unit (150) at a position spaced apart from the floor of the underground structure.

[0103] The above method for maintaining an underground structure may further include a step of retrieving the hose (H). The step of retrieving the hose (H) may include a first retrieval step in which the hose (H) is fixed to a roller part (22); a second retrieval step in which the roller part (22) pulls the hose (H) in one direction; and a third retrieval step in which the hose (H) is placed on a plate (10).

[0104] The step of retrieving the hose (H) may include the step of the plate (10) being coupled to the working device. That is, the step of retrieving the hose (H) may be performed while the plate (10) is coupled to the working device. Specifically, the step of retrieving the hose (H) may be performed while the plate (10) is lifted by the working device.

[0105] In this way, an underground structure maintenance system according to one embodiment of the present invention can discharge sewage by introducing a pumping unit into an underground structure with an uneven depth. At this time, the underground structure maintenance system can deliver the pumping unit to the bottom of the underground structure through a guide unit, a separation unit, etc.

[0106] The present invention is not limited to the embodiments described above, and it is obvious that it may include a combination of the above embodiments or a combination of at least one of the above embodiments and known technology as another embodiment.

[0107] Although the present invention has been described above with reference to embodiments, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various combinations, modifications, and applications not exemplified in the embodiments are possible without departing from the essential technical content of the embodiments. Therefore, technical details regarding modifications and applications that can be easily derived from the embodiments of the present invention should be interpreted as being included in the present invention. Explanation of the symbols

[0108] 1: Hose recovery device 10: Plate 11: Section 1 12: Section 2 20: Recovery unit 21: Frame 211: 1st vertical frame 212: 2nd vertical frame 213: 1st horizontal frame 214: 2nd horizontal frame 215: Reinforcement frame 216: Leveling member 22: Roller Section 221: 1st Roller Section 222: 2nd Roller Section 223: 3rd Roller Section 224: 4th Roller Section 30: Power unit 40: Connection unit 41: Plate-shaped member 42: Connecting member 50: Auxiliary equipment 51: Auxiliary equipment main body 52: Drive unit connection part 53: Home 100: Underground Structure Maintenance System 110: Hose body 120: Extension hose 130: Boundary 130a: Connection 140: Fixed part 150: Pumping section 160: Filter section 170: Guide section 180: Separation section H: Hose M: Underground structure M1: 1st underground structure M2: Second underground structure

Claims

Claim 1 A hose retrieval device comprising: a plate on which a hose is seated; a frame extending upward on the plate; a roller part supported by the frame and pulling the hose in one direction; a power part provided on the plate and providing power to the roller part; and a coupling part formed on the plate and having a structure coupled to a working device; wherein the frame comprises a horizontal frame extending in a horizontal direction; and the horizontal frame comprises a horizontal maintaining part provided on the horizontal frame and assisting in maintaining the horizontal of the horizontal frame, wherein at least a portion of the horizontal frame has a shape inclined downward. Claim 2 In claim 1, the hose recovery device, wherein a plurality of roller parts are arranged adjacently to compress the hose. Claim 3 In paragraph 1, the coupling part is a hose recovery device coupled to the end of the arm of an excavator. Claim 4 delete Claim 5 delete Claim 6 In claim 1, the roller part is a hose retrieval device that pulls the hose while the plate is coupled to the working device. Claim 7 In claim 1, the above plate is a hose recovery device that moves in a direction opposite to the direction in which the hose is pulled by the above working device.

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