JPH07197517A - Underground sewerage maintenance device and working bench used therefor - Google Patents

Abstract

PURPOSE:To improve the cleaning work efficiency for an underground sewerage. CONSTITUTION:Two units of maintenance device body 26 which is equipped with a winch drum 27 installed on a working bench 6, driving device 28 for the winch drum 27, rising/lowering leader 30 which is supported on the working bench 6 so as to project downward, lower part guide sheave 33 which is pivotally supported at the lower part of the rising/lowering leader 30 are provided. The driving side end part of a rope 27a wound on the winch drum 27 of one maintenance device body 26 is connected with the end part in the excavation direction side of a bucket 34 which is formed so as to be installed inside an underground water passage. Further, the driving out side end part of the rope 27a wound on the winch drum 27 of the other maintenance device body 26 is connected to the end part on the counter-excavation direction side of the bucket 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground sewer maintenance system and a workbench used in the underground sewer conservation system.

[0002]

2. Description of the Related Art Generally, an underground sewer is a laterally excavated underground waterway 1 having an extremely gentle slope in the ground as shown in FIG. It is composed of a work passage 2 excavated toward and a pit 3 provided at the bottom of the work passage 2.

A large number of the work passages 2 are provided at a predetermined interval, and the ground opening 2a of each work passage 2 is usually covered with a cover 4.

In such an underground sewer, cleaning work is carried out regularly in order to prevent blockage due to earth and sand and dust.

Conventionally, when cleaning the underground sewer, the ground opening 2a from which the cover 4 has been removed enters the underground waterway 1 through the work passage 2, and the earth and sand 5 accumulated in the underground waterway 1 is temporarily pitted by human power. The soil and sand 5 collected in the pit 3 is put into a bucket suspended from a hoisting device (not shown) such as a winch provided on the surface of the earth, and the bucket is rolled up to collect the sediment inside the underground sewer. 5 etc. are removed.

[0006]

However, since the underground waterway is narrow, many workers have the same work passage 2
There is a problem that it is impossible to enter the underground waterway 1 located between them once to perform the work, and it is impossible to efficiently perform the cleaning work of the underground sewer in a short time.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide an underground sewerage maintenance system and a workbench used for the underground sewerage maintenance system, which can efficiently perform the cleaning work of the underground sewerage system.

[0008]

SUMMARY OF THE INVENTION A first invention is a winch drum installed on a workbench, a drive device for driving the winch drum, and a lift leader supported on the workbench so as to project downward. It has two maintenance device main bodies each having a lower guide sheave pivotally supported at the bottom of the lifting leader, and one end of the rope wound around the winch drum of one maintenance device main body is connected to the end of the underground waterway. It is possible to install the end of the rope wound around the winch drum of the other maintenance device main body so that it can be connected to the end on the excavation side of the bucket that can be installed inside, and inside the underground waterway. The underground sewer conservation device is configured so that it can be connected to the end of the formed bucket on the side opposite to the excavation direction.

A second invention is, in the underground sewer maintenance system of the first invention, a guide leader having a hollow structure which is erected on a workbench, and an ascending / descending leader arranged so as to be able to ascend and descend inside the guide leader. And two lowering sheaves, each of which includes a lifting device for lifting the lifting leader with respect to the guide leader, and a lower guide sheave pivotally supported on the lower part of the lifting leader.

In a third aspect of the invention, the drive device for the winch drum of the underground sewer maintenance system of the first or second aspect is a hydraulic motor.

In a fourth aspect of the invention, the drive device for the winch drum of the underground sewer maintenance system of the first or second aspect is an electric motor.

A fifth aspect of the invention is a construction in which the raising / lowering leader of the underground sewer maintenance apparatus of the second to fourth aspects is formed hollow and the raising / lowering apparatus of the raising / lowering leader is disposed inside the raising / lowering leader. There is.

In a sixth aspect of the invention, an upper guide sheave is pivotally supported on a guide leader of each maintenance device body of the underground sewer maintenance device of the second to fifth aspects.

A seventh aspect of the present invention is a workbench used in the underground sewer maintenance system according to any one of the first to sixth aspects, having a top surface on which the maintenance device body can be placed, and a lower guide of the maintenance device body. A plurality of pin holes that extend horizontally in a direction parallel to the rope groove of the sheave and that face each other at intervals in the width direction are provided at predetermined equal intervals along the respective side faces. The workbench main body and the lower surface of the workbench main body are attached to the one end of the workbench main body in a symmetrical position deviated to one side in the longitudinal direction and at a predetermined distance in the width direction, and are provided at the tip portion. A workbench positioning device having a screw device capable of advancing and retracting the pressing member, and a workbench main body directed toward the other side of the workbench main body through pins that can be inserted into the pin holes at appropriate positions on both side surfaces of the workbench main body. Can be attached and detached and the pressing member provided at the tip of the rod It has a configuration that includes a work platform fixing device having the advance may be retracted cylinder.

[0015]

Therefore, according to the present invention, a pin hole at a proper position is selected from a plurality of pin holes provided on the side surface of the workbench, and the workbench fixing device is mounted on the workbench fixing device so that the workbing fixing device is pressed. The space between the workbench positioning device and the pressing member can correspond to the width of the surface opening of the sewer.

When the main body of each maintenance device and the workbench are mounted on the surface opening of the sewer for their respective purposes, the screw device of the workbench positioning device is operated to move the pressing member forward and backward to open the workbench surface. The workbench can be fixed at a predetermined position of the ground surface opening by determining the position with respect to the part, operating the cylinder of the workbench fixing device in the extension direction, and advancing the pressing member to press it against the edge side surface of the ground surface opening.

Further, the payout side end of the rope wound around the winch drum of one maintenance device main body is connected to the excavation direction side end of the bucket installed inside the underground waterway, and the winch of the other maintenance device main body. The end of the rope wound around the drum on the payout side is connected to the end of the bucket on the opposite side of the excavation direction, and the drive device of each maintenance device body is operated to wind the rope around the winch drum of one maintenance device body. If you drive the winch drum of the other maintenance device body in the direction to pull out the rope,
The bucket inside the underground waterway can be moved forward in the excavation direction. On the contrary, if the winch drum of one maintenance device body is driven in the direction in which the rope is unwound and at the same time the winch drum of the other maintenance device body is driven in the direction in which the rope is wound up, the bucket inside the underground waterway moves in the anti-excavation direction. Can be retracted.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4 are side views showing an outline of an example of an underground sewer maintenance system and a workbench used in the underground sewer conservation system of the present invention. In the figure, the same parts as those in FIG.

Reference numeral 6 denotes a workbench, which has a sufficient length to bridge the surface opening 2a of the work passage 2 of the underground sewer, and has a maintenance device main body 26 described later mounted on the upper surface thereof. Has a plurality of pin holes 7 formed so that it can be placed on both side surfaces in the width direction at regular intervals along the respective side surfaces, and both ends in the length direction in the width direction. A workbench main body 9 having slide wheels 8 pivotally supported so as to be able to roll in the width direction, which are arranged at intervals, is provided. The workbench positioning device 10 is provided at symmetrical positions that are slightly biased to one side and are spaced apart by a predetermined distance in the width direction.

The workbench positioning device 10 mounted on the lower surface of the workbench body 9 has a frame 12 having a hollow guide portion 11 with one end of the workbench body closed as shown in FIG. And a jack main body 13 slidably fitted in the guide portion 11 of the frame 12.
And a screw rod 15 having a handle 14 at an end portion that extends through the closed side of the guide portion 11 and is screwed to the rear end portion of the jack body 13, and the screw device 16 is provided. The pressing member 17 provided at the tip of the jack body 13 is attached to the work table body 9 in the longitudinal direction.

When the handle 14 of the screw device 16 is manually operated to rotate the screw rod 15, the jack body 13 moves forward or backward in the longitudinal direction of the worktable body 9 to require the pressing member 17 provided at the tip. Is configured to occupy the position of.

The workbench 6 is also provided with a workbench fixing device 19 which can be attached to and detached from the pin holes 7 provided on both side surfaces of the workbench body 9 via pins 18.

As shown in FIG. 4, the workbench fixing device 19 includes a bracket 20 having two pin holes formed at a pitch substantially double the pitch of the pin holes 7 of the workbench body 9,
A frame 22 is provided which is fixed to the bracket 20 and has a rectangular hollow cross section whose one end is closed, and a frame 22. The frame 22 has a hollow inside closed end side of the guide 21. The base portion is pivotally supported by the guide portion 2
1 is provided with a cylinder 24 having a pressing member 23 at the tip of a rod extending toward the open end side, is slidably inserted into the hollow inside of the guide portion 21, and supports the vicinity of the tip of the rod of the cylinder 24. It has a hollow guided member 25 formed as described above.

The workbench fixing device 19 has the pressing member 2
3 toward the outer side in the longitudinal direction of the workbench main body 9, and the pins 18 are provided in each of the plurality of pin holes 7 provided on the side surface of the workbench main body 9.
It is possible to attach and detach via the work table, and it is possible to install the work table positioning device 10 by appropriately selecting an interval from the work table positioning device 10.

By operating the cylinder 24 in the direction in which the rod extends, the pressing member 2 at the tip of the rod is moved.
3 can be pushed out in the longitudinal direction of the workbench body 9.

Further, the maintenance device body 26 is placed on the upper surface of the workbench body 9.

The maintenance device body 26 is the workbench body 9
A winch drum 27 in which a shaft extends horizontally in the width direction of the workbench main body 9 in the central portion in the width direction near the end on the workbench fixing device 19 attachment side of the upper surface of the workbench fixing device 19.
And a hydraulic motor 28 for driving the winch drum 27, which is erected at a central portion in the width direction that is deviated from the center of the workbench main body 9 to the workbench positioning device 10 mounting side,
In addition, a hollow guide leader 29 extending in the vertical direction and an elevating leader 30 arranged so as to be able to ascend and descend inside the guide leader 29 and to project below the workbench body 9.
And an elevating device 31 for connecting the upper part of the hollow inside of the guide leader 29 and the middle part of the elevating leader 30 to elevate the elevating leader 30 with respect to the guide leader 29. An upper guide sheave 32 rotatably supported by a rope groove in the upper part of the guide leader 29 toward the winch drum 27, and the elevating leader 3 described above.
A lower guide sheave 33 rotatably supported is provided in the same plane as the upper guide sheave 32 at the lower part of 0.

Furthermore, it can be put into the underground waterway 1 and can freely reciprocate in the underground waterway 1, and it has an opening 34a for excavation on one side, and the opening 34a side and the anti-opening 3
A bucket 34 formed so that the end of the rope can be connected to the 4a side is provided.

Then, the rope 27a fed from the winch drum 27 of the maintenance device body 26 is wound around the upper guide sheave 32, and further the lower guide sheave 33.
It is formed so that it can be connected to the bucket 34 after being wrapped around.

Next, the operation will be described. The surface opening 2a of the work passage 2 at two places communicating with the underground sewer system to be cleaned by the two underground sewer system maintenance devices composed of the work table 6 and the maintenance device main body 26 placed on the work table 6.
In addition, each workbench positioning device 10 is installed so as to be located on the side of the groundwater channel 1 to be cleaned.

At this time, using the pressing member 17 of the workbench positioning device 10 as a reference, the workbench is fixed at a position slightly narrower than the opening width of the ground surface opening 2a of the intended underground sewer in the direction in which the underground waterway 1 is extended. A pin hole 7 at an appropriate position is selected from the pin holes 7 provided on the side surface of the workbench body 9 so that the pressing member 23 of the device 19 is positioned, and the workbench fixing device 19 is fixed via the pin 18. Put.

Then, the handle 14 of the screw device 16 of the workbench positioning device 10 is manually operated to rotate the screw rod 15 to move the jack body 13 forward so that the pressing member 17 at the tip of the jack body 13 is brought to the surface. The position of the workbench 6 with respect to the surface opening 2a is determined by abutting the opening 2a on the peripheral side surface on the side of the groundwater channel 1 to be cleaned, and the cylinder 24 of the workbench fixing device 19 is operated to extend the rod. The workbench main body 9 is fixed to a predetermined position of the ground surface opening 2a by pressing the pressing member 23 at the tip of the rod against the peripheral side surface on the other side of the ground surface opening 2a.

Further, an opening for excavating the bucket 34 in which the end of the rope 27a wound around the winch drum 27 of the main body 26 of the maintenance device on one side (A side shown in FIG. 1) is fed into the underground waterway 1. The end portion of the rope 27a wound around the winch drum 27 of the other maintenance device main body 26 (the side B shown in FIG. 1) is connected to the side of the portion 34a, and is connected to the side opposite to the opening 34a of the bucket 34. .

Then, the elevating device 31 of each maintenance device body 26, 26 is operated to elevate the elevating leader 30, and the height position of the lower guide sheave 33 provided at the lower end of the elevating leader 30 is adjusted. The reciprocating passage position of the bucket 34 in the groundwater channel 1 is adapted to the height of the groundwater channel 1.

After that, the hydraulic motor 28 of the winch drum 27 of each of the maintenance device bodies 26, 26 is actuated to drive the winch drum 27 of one of the maintenance device bodies 26 (A side in FIG. 1) in the direction of winding the rope 27a. At the same time, the winch drum 2 of the other maintenance device main body 26 (B side in FIG. 1).
When 7 is driven in the direction of unwinding the rope 27a, the bucket 34 inside the groundwater channel 1 advances in the excavation direction, and the earth and sand 5 and the like accumulated in the groundwater channel 1 are used as one working passage (A side in FIG. 1). 2 Transport to lower pit 3.

On the contrary, the winch drum 27 of the maintenance device main body 26 on one side (A side in FIG. 1) is driven in the direction in which the rope 27a is extended, and at the same time, the winch drum 27 of the other maintenance device main body 26 (on the B side in FIG. 1). If the winch drum 27 is driven in the direction in which the rope 27a is wound up, the bucket 34 inside the underground waterway 1
Retreats in the anti-excavation direction.

In this way, by reciprocating the bucket 34 in the groundwater channel 1, the earth and sand 5 accumulated in the groundwater channel 1 is excavated in the bucket 34 (A side in FIG. 1).
Can be accumulated in the pit 3 below the work passage 2 of.

According to the above, since the mounting position of the workbench fixing device 19 with respect to the workbench 6 can be freely selected, the workbench 6 and the maintenance device main body 26 are formed in the ground surface opening 2a of various sizes. Can be installed. Further, the bucket 34, which is wound into the winch drum 27 driven by the hydraulic motor 28 and is guided into the groundwater channel 1 by the rope 27a guided by the lower guide sheave 33 provided at the tip of the elevating leader 30 capable of ascending and descending. Since it is formed so as to be able to reciprocate, the height of the reciprocating position of the bucket 34 can be selected by raising and lowering the raising / lowering leader 30, and it is possible to correspond to the groundwater channel 1 of various depths. At the same time, by making full use of mechanical power, it becomes possible for a small number of workers to perform efficient sewer cleaning work in a short time.

In the above embodiment, the maintenance device main body 2
Although the case where the hydraulic motor 28 is provided as a device for driving the winch drum 27 of No. 6 has been described, various other modifications may be made within the scope not departing from the gist of the present invention, such as an electric motor instead of the hydraulic motor 28. Of course, changes can be made.

[0041]

EFFECTS OF THE INVENTION According to the underground sewerage conservation system and the workbench used in the underground sewerage conservation system of the present invention, various excellent effects as described below can be obtained.

I) Since the mounting position of the workbench fixing device with respect to the workbench can be freely selected, the workbench and the maintenance device main body can be installed corresponding to the ground surface openings of various sizes. .

II) Since the height of the reciprocating position of the bucket can be selected depending on the raising / lowering position of the raising / lowering leader, it is possible to cope with underground waterways of various depths.

III) Since the bucket put into the underground waterway is formed so as to be able to reciprocate by mechanical force,
Efficient sewer cleaning work can be performed within a short time by a small number of workers.

[Brief description of drawings]

FIG. 1 is a side view showing an outline of an underground sewer conservation system of the present invention and a workbench used in the underground sewer conservation system.

FIG. 2 is a view taken along the line II-II of FIG.

FIG. 3 is a side view schematically showing a workbench positioning device related to FIG. 1.

FIG. 4 is a side view schematically showing a workbench fixing device related to FIG. 1.

FIG. 5 is a cross-sectional view schematically showing an example of underground sewer.

[Explanation of symbols]

 1 Groundwater Channel 6 Worktable 7 Pinhole 9 Worktable Main Body 10 Worktable Positioning Device 16 Screw Device 17 Pushing Member 18 Pin 19 Worktable Fixing Device 23 Pushing Member 24 Cylinder 26 Maintenance Device Main Body 27 Winch Drum 28 Hydraulic Motor (Drive Device) 29 Guide Reader 30 Lifting Leader 31 Lifting Device 32 Upper Guide Sheave 33 Lower Guide Sheave 34 Bucket

Claims (7)

[Claims] 1. A winch drum installed on a workbench, a drive device for driving the winch drum, an elevating leader supported on the workbench so as to project downward, and a pivotal support under the elevating leader. It has two maintenance device main bodies each provided with a lower guide sheave, and one end of the rope wound around the winch drum of one of the maintenance device main body is provided on the inside of the ground water channel. A side end of the bucket which is formed so that it can be connected to the end on the side of the excavation direction and the end of the other side of the rope wound around the winch drum of the main body of the maintenance device can be installed inside the underground waterway. An underground sewer conservation system characterized by being configured so that it can be connected to a section. 2. A winch drum installed on a workbench, a drive device for driving the winch drum, a guide leader having a hollow structure installed upright on the workbench, and arranged so as to be able to move up and down inside the guide leader. A lifting / lowering leader, a lifting / lowering device for lifting / lowering the lifting / lowering leader with respect to the guide reader, and a lower guide sheave pivotally supported on a lower portion of the lifting / lowering leader. One end of the main body of the maintenance device is connected so that the end of the rope wound around the winch drum can be connected to the end of the bucket formed in the underground waterway in the excavating direction. The end of the rope wound around the winch drum on the other side is connected to the end on the side opposite to the excavation direction of the bucket that can be installed inside the underground waterway. Underground sewer conservation equipment to collect. 3. The underground sewer maintenance system according to claim 1, wherein the drive device for the winch drum is a hydraulic motor. 4. The underground sewer maintenance system according to claim 1, wherein the drive device for the winch drum is an electric motor. 5. The underground sewer maintenance system according to claim 2, wherein the elevating leader is formed hollow, and the elevating device for the elevating leader is disposed inside the elevating leader. 6. The underground sewer maintenance system according to claim 2, wherein an upper guide sheave is pivotally supported by a guide leader of each maintenance system body. 7. An upper surface on which the maintenance device main body can be placed,
A pair of side faces that extend horizontally in a direction parallel to the rope groove of the lower guide sheave of the maintenance device body and face each other at intervals in the width direction are provided at predetermined equal intervals along the respective side faces. A workbench main body having a plurality of pin holes and attached to one side of the workbench main body at symmetrical positions on the lower surface of the workbench main body that are biased to one side in the longitudinal direction and are spaced apart by a predetermined distance in the width direction. And a workbench positioning device having a screw device capable of advancing and retracting a pressing member provided at the tip end, and a workbench main body via pins that can be inserted into the pin holes at appropriate positions on both side surfaces of the workbench main body. 7. A workbench fixing device having a cylinder that can be attached and detached toward the other side of the rod and that can move forward and backward a pressing member provided at the tip of the rod. A workbench used for sewer maintenance equipment.