JPH07279141A - Method and device for carrying machine into horizontal hole - Google Patents

Abstract

PURPOSE:To perform a carrying work without requiring manual work in a sewer pipe when a cleaning machine is carried into the sewer pipe. CONSTITUTION:A bellows guide cylinder 21 having a number of slide pipes 22, 23 continued to each other is inserted from a vertical hole 9, and a wire 26 is inserted thereto to curve the guide cylinder 21, so that the guide cylinder 21 is set in the state curved from the inlet port of the vertical hole 9 to the bottom surface 1a of a sewer pipe 1. A cleaning machine is carried through the guide cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for loading a machine into a lateral hole through a vertical hole.

[0002]

2. Description of the Related Art The inside of a sewer pipe is regularly inspected and deposited soil is cleaned, and in some cases repaired. The maintenance work is carried out by bringing the machine into the sewer pipe.

The loading of the machine into the sewer pipe depends on the length of the machine,
Provide an inlet with a size that allows the width to be connected to the sewer pipe and carry in from there, or insert the machine vertically with a small vertical hole connected to the sewer pipe and use a chain block etc. in the vertical hole. The machine was leveled and put into the sewer pipe.

However, if the vertical holes and the like are modified and enlarged according to the size of the machine, the construction cost will increase.
In addition, there are gas pipes and holes for electric wires nearby, so it may not be possible to expand the vertical holes. Therefore, at present, the machine is mainly thrown in through a small existing vertical hole by a crane, and a person operates a chain block or the like in the vertical hole to change the direction of the machine and guide it into the sewer pipe which is a horizontal hole.

FIG. 4 shows a state in which a cleaning machine 2 is carried into the sewer pipe 1 as a maintenance machine. The cleaning machine 2 is configured by connecting a first body 4 having a suction port 3, a second body 5, a mud collection pump truck 6 and a power unit truck 7 to each other, and deposits at the suction port 3 of the first body 4. It takes in the soil and transports it to the ground.

A vertical hole 9 leading to the ground 12 is provided in the vertical shaft portion 8 of the sewer pipe. Inside the vertical shaft portion 8, the cleaning machine 1 is provided.
Wire 10 connected to the rear of the power unit truck 7 of
The sheave 11 on which the wire 10 is hung is provided, and the ground 12 is provided with the winch 13 that winds the wire 10 when the cleaning machine 2 is collected and the sheave 14 that winds the wire 10.

The cleaning machine 2 is inserted into the sewer pipe 1 separately for each part. FIG. 5 shows a state in which the first body 4 at the tip is inserted. The rear part of the first main body 4 is suspended by a crane 15 on the ground 12 and lowered into the vertical hole 9. At this time, the leg portion 4a of the first main body is in a folded state like a cap.
When the first main body 4 comes into the vertical shaft portion 8, the hook of the chain block 16 supported on the wall surface of the vertical shaft portion 8 is hooked on the front portion of the first main body 4, and the chain block 16 is operated to make the first operation.
The main body 4 is gradually brought into a horizontal state, and at the same time, the crane 15 is operated to land on the bottom surface 1a of the sewer pipe 1.

Next, the hook of the chain block 17 supported on the ceiling surface of the sewer pipe 1 is hooked on the tip of the first main body, and the chain block 17 is operated to move the first main body 4 forward in the sewer pipe 1. At this time, the edges of the first main body 4, the crane 15 and the chain block 16 are cut off.

In the same manner, the second main body 5, the mud collecting pump truck 6, and the power unit truck 7 are carried in in the same manner, and the cleaning machine 2 is constructed without carrying them.

[0010]

However, in the above-mentioned method of carrying in the cleaning machine, it is necessary for the worker to work in the sewer pipe for a long time, and there is a risk of oxygen deficiency or generation of hydrogen sulfide gas in the sewer pipe. It is dangerous because of the presence of the wastewater, and because the sewage sludge flows in the sewer pipe under adverse conditions, there is a problem in that the worker is forced to perform harsh work.

Therefore, it is desired to allow the machine to be carried into the lateral hole of the sewer pipe or the like without the operator entering the lateral hole.

[0012]

A method of loading a machine into a horizontal hole according to the present invention which solves the above-mentioned problems is a circle extending from an inlet of the vertical hole to the horizontal hole when the machine is loaded into the horizontal hole through the vertical hole. An arc-shaped guide member is installed, and the machine is carried in along the guide member. Further, the machine carry-in device for a lateral hole according to the present invention is a bellows-like device that can be inserted from a vertical hole. And a means for contracting only one of the bellows portions of the guide cylinder.

[0013]

According to the method for loading a machine into a horizontal hole according to the present invention, the machine is loaded along an arcuate guide member extending from the entrance of the vertical hole to the horizontal hole. If it goes, the direction is automatically changed while following the guide member, and it becomes a horizontal state on the inner bottom surface of the lateral hole.

According to the apparatus for loading a machine into a lateral hole according to the present invention, a bellows-shaped guide tube inserted from a vertical hole is bent to a desired side by a bending means, and a guide path for loading a machine is provided. Can be formed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method and apparatus for loading a machine into a lateral hole according to the present invention will be described with reference to the drawings. FIG. 1 shows an outline of a carry-in device according to one embodiment, and FIGS.

In FIG. 1, reference numeral 21 denotes a guide tube as a guide member having a bellows shape, and a large number of inner and outer slide tubes 2
2 and 23 are connected to each other so that they can expand and contract and bend. As shown in FIG. 2, both ends of the inner slide tube 22 are engaging portions 22a bent outward so that the cross section thereof has a U shape. On the other hand, a step portion 23a is formed at the end portion of the outer slide tube 23, and an engaging portion 23 that engages with the engaging portion 22a of the inner slide tube 22 is formed at the end of the step portion 23a.
b is formed by bending inward so that the cross-sectional shape is U-shaped.

Inner slide tube 22 and outer slide tube 23
The engaging portions 22a and 23b are extendable and retractable. That is, in the extended state, as shown in FIG. 2, the end surface 23c of the engaging portion 23b of the outer slide tube 23 is in contact with the inner curved surface 22b of the engaging portion 22a of the inner slide tube 22, and the maximum length is obtained. In the contracted state, as shown in FIG. 3, the outer curved surface 2 of the engaging portion 22a of the inner slide tube 22 is
2c comes into contact with the inner step surface 23d of the outer slide tube 23. That is, "X" in FIG.
This is the amount of expansion and contraction between the outer slide tubes 22 and 23, and X = 0 in the contracted state.

Even in this state, the outer slide tube 23
The end surface 23c of the engaging portion 23b and the end surface 22d of the engaging portion 22a of the inner slide tube 22 are not disengaged from each other, and the end portions overlap each other.

A stopper 24 is provided like a collar at the rear end of the slide tube 22 or 23 located at the rearmost end of the guide cylinder 21. The stopper 24 contacts the ground surface at the edge of the upright hole 9 and holds the guide cylinder 21.

The slide tube 2 located at the front of the guide tube 21
A tip metal fitting 25 is attached to the tip of 2 or 23,
The tip of the wire 26 is fastened to the tip hardware 25. The wire 26 is passed through the guide cylinder 21, and the rear end side thereof is wound up by a winding device 27 mounted on the stopper 24. A winch, a chain block, or the like is also used as the winding device 27.

Next, the procedure for installing the above-mentioned carry-in device will be described. Here, the case where it installs in the sewer pipe 1 which is a horizontal hole from the upright hole 9 is shown.

The wire 26 is wound up by the winding device 27 while the rear portion of the guide cylinder 21 is hung by a crane and is thrown into the vertical hole 9 from the tip side. The amount of expansion and contraction on the side pulled by the wire 26 between the inner and outer slide tubes 22 and 23 gradually decreases, and as shown in FIG. 1, only one side is curved. The size of the curved R can be adjusted by changing the winding amount of the wire 26.

If there is a risk that not only one side but also both sides will be contracted by pulling the wire 26,
A stopper is provided between the engaging portions 22a and 23b on the side opposite to the contracting side so that only one side contracts. In Figure 2,
The stopper 28 provided between the outer curved surface 22c of the inner slide tube 22 and the inner step surface 23d of the outer slide tube 23 is shown by a broken line.

The wire 26 attached to the metal tip 25
When the guide tube 21 cannot be bent sufficiently by simply pulling, the wire may be anchored to the slide tube 22 or 23 on the way and the wire may also be wound up.

Finally, as shown in FIG. 1, the guide tube 21
The tip of the will be in contact with the bottom surface 1a of the sewer pipe 1,
The rear end stopper 24 is in contact with the ground surface 12.

If a cleaning machine such as that shown in FIGS. 4 and 5 is inserted in order from the rear of the guide cylinder 21 while supporting the rear side by a crane or the like, the cleaning machine will follow the curve of the guide cylinder 21. And the direction is changed, and the guide tube 21 is in the horizontal state when it comes out from the tip end side. That is, the machine can be carried into the sewer pipe 1 without requiring human labor.

When removing the cleaning machine from the inside of the sewer pipe 1, it can be carried out through the guide cylinder 21 in the same manner.
In other words, connect the crane to the rear of the machine and pull it up. The machine is pulled up to the ground 12 using the guide tube 21 as a guide. In this way, if the machine is removed through the guide tube 21, it is possible to prevent the machine from colliding with and damaging the vertical shaft portion 8 and the vertical hole 9, as compared with the case of suspending and collecting the machine only by the crane.

In the above embodiment, only one wire 26 for expanding and contracting the guide cylinder 21 is shown, but a plurality of wires 26 are provided so that they can be selectively used according to the bending direction. Good. Further, the means for bending the guide tube 21 is not limited to the wire, but the slide tubes 22 inside and outside,
You may make it install a jack, a cylinder, etc. between 23. Further, the guide cylinder as the guide member does not need to be a perfect cylinder in the circumferential direction, and may be a trough shape.

In the present embodiment, the sewer pipe 1 is used as the horizontal hole, but the present invention can be generally applied to other cases where the machine is carried into the horizontal hole from the vertical hole or the machine is removed from the horizontal hole.

[0030]

According to the method of loading a machine into a horizontal hole according to the present invention, an arcuate guide member extending from the entrance of the vertical hole to the horizontal hole is installed, and the machine is loaded along the guide member. Therefore, even if there is no operator in the lateral hole, the machine can be automatically oriented and carried into the lateral hole. Therefore, the carrying-in work time can be shortened and the burden on the worker can be reduced. Further, like the carrying-in work, the removing work does not require manpower in the lateral hole, the machine can be taken out in a short time, and the collision between the machine and the vertical hole can be avoided, so that the machine can be prevented from being damaged.

Further, according to the machine carry-in device for the lateral hole according to the present invention, the machine having the above-mentioned effect can be carried in by bending the bellows-shaped guide tube inserted from the vertical hole to the desired side by the bending means. It is possible to form a guide path that can realize

[Brief description of drawings]

FIG. 1 is a schematic view of a device for loading a machine into a lateral hole according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a portion A in FIG.

FIG. 3 is an enlarged cross-sectional view of a portion A in FIG. 1 in different states.

FIG. 4 is a schematic view of an example of a cleaning device carried into a sewer pipe.

FIG. 5 is an explanatory view of a conventional carrying-in method into the sewer pipe of the cleaning device.

[Explanation of symbols]

 1 Sewage pipe 2 Cleaning device 8 Vertical shaft 9 Vertical hole 21 Inner slide pipe 22a Engagement portion 23 Outer slide pipe 23a Stepped portion 23b Engagement portion 26 Wire

Claims (2)

[Claims] 1. When loading a machine into a horizontal hole through a vertical hole, an arc-shaped guide member extending from the entrance of the vertical hole to the horizontal hole is installed, and the machine is loaded along the guide member. How to carry the machine into the side hole. 2. An apparatus for loading a machine into a lateral hole, comprising: a bellows-shaped guide tube that can be inserted from a vertical hole, and a means for shrinking only one of the bellows portions of the guide tube.