JP4189057B2 - Guide roll device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guide roll device used when a member to be inserted into an existing buried pipeline is operated by a pulling device installed and fixed on the ground to be pulled into the existing pipeline and inserted.
[0002]
[Prior art]
Pipe insertion members such as plastic pipes for rehabilitating pipes, pipe cleaning tools such as brushes and scrapers, etc., are installed on the ground via pulling wires. When operating the traction device such as a winch installed and pulling from the inlet of the existing pipeline toward the outlet, a guide roll device is installed outside the outlet of the existing pipeline, and the guide roll device The traveling direction of the pulling wire is directed from the tube axis direction to the ground pulling device.
[0003]
Below, the problem in the conventional guide roll apparatus will be described by taking as an example the case of using a plastic pipe for lining as the pipe insertion member. The insertion of the plastic pipe into the existing pipe line digs a work pit on the inlet side and the outlet side of the existing pipe line, and changes the traveling direction of the pulling wire and the plastic pipe subsequent thereto in the outlet side work pit. A guide roll is installed at the outlet of an existing pipeline, and a puller wire and a plastic tube are drawn from the inlet of the pipeline toward the outlet using a towing device such as a winch, etc. This is performed by changing the traveling direction to the ground direction by the guide roll.
[0004]
However, conventionally, since the guide roll is supported only by being attached to the existing pipe line, it has the following disadvantages. That is, the guide roll serves as a fulcrum when guiding the traveling direction of the pulling wire and the in-pipe insertion member upward (toward the ground), so the in-pipe insertion member is inserted into the existing pipe. In this process, a large upward load is applied to the guide roll. Therefore, in the conventional configuration in which the guide roll is supported only by the existing pipeline, the existing pipeline is seriously damaged, which causes damage to the existing pipeline.
[0005]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described problems, and is installed in a work pit for changing the travel path of an in-pipe insertion member when the in-pipe insertion member is inserted into an existing pipe line. It is an object of the present invention to provide a guide roll device that can reduce the load on the existing pipe line and can improve work efficiency.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a member to be inserted into an existing pipeline buried in the ground by operating a traction device fixedly installed on the ground, and through the traction wire, the existing tube When pulling into the road from the inlet toward the outlet, the moving path of the pulling wire and the insertion member subsequent thereto is directed from the axial direction of the existing pipe line to the ground direction outside the outlet side of the existing pipe line. Guide roll device installed to guide the guide wire, the guide roll member being fixed to the outlet side end portion of the existing pipeline, and guiding the pulling wire and the insertion member drawn out from the existing pipeline exit in the ground direction A support member fixed to the traction device side so as to be positioned on a moving path of the traction wire between the traction device and the existing pipeline outlet, one end on the guide roll member, and the other end on the support Members, and a axial length adjustable struts respectively connected, wherein the posts and the guide roll member and the support member, there is provided a guide roll apparatus which is connected via a universal joint.
[0007]
Preferably, the support member may include a second guide roll member that guides the pulling wire and the insertion member toward the pulling device.
[0008]
Preferably, the guide roll member can be fixed to the existing pipe line so that the position in the pipe axis direction can be adjusted.
[0009]
Preferably, the support member can be fixed to the traction device so that the vertical position can be adjusted.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a guide roll device according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view showing an example of a step of drawing a lining plastic pipe into an existing pipe line as a pipe insertion member using the guide roll device according to the present embodiment, and FIG. FIG. 3 is a sectional view taken along the line BB in FIG. 1. In this embodiment, a plastic tube for lining is described as an example of a member to be inserted into the pipeline, but the present invention is not limited to this, for example, in a pipeline such as a brush or a scraper. It is used when various pipe insertion members such as cleaning tools are drawn into existing buried pipes.
[0011]
In the guide roll device 1 according to the present embodiment, an existing pipe embedded in the ground via a pulling wire 65 by operating a pulling device such as a winch 70 fixedly installed on the ground with a plastic pipe 60 for lining. When pulling into the passage 50 from the inlet toward the outlet, the moving path of the pulling wire 65 and the plastic pipe 60 subsequent thereto is routed from the axial direction of the conduit 50 to the ground outside the outlet 50 of the conduit 50. It is installed to guide in the direction.
[0012]
The guide roll device 1 includes a guide roll member 10 attached to an outlet side end portion of an existing pipe line 50, a column 20 having one end connected to the guide roll portion via a universal joint 40 and the other end extending to the ground. And a support member 30 that supports the other end of the support column 20 via a universal joint 45.
[0013]
4 is an enlarged view of a portion A in FIG. 1, FIG. 5 is an exploded view of the portion, and FIG. 6 is a view taken in the direction of arrow X in FIG. As shown in FIG. 4, the guide roll member 10 has a cylindrical clamp portion 11 that is fastened to the outlet end portion of the existing pipeline 50 and a roll portion 15 that is fixed to the clamp portion. is doing. The clamp part 11 and the roll part 15 can be integrally formed. However, it is preferable that the clamp part 11 and the roll part 15 are separated from each other in consideration of the efficiency of mounting work on the existing pipeline 50.
[0014]
The said clamp part 15 can be comprised from various pipe clamps, for example, can be provided with a pair of semi-cylindrical bodies and a fastening metal fitting for fastening these. As shown in FIGS. 5 and 6, an engaging convex portion 12 is formed on the upper portion of the clamp portion 11 along the axial direction of the existing conduit 50. Mounting holes 12 a penetrating in the width direction are formed in the engaging convex portion 12 at a predetermined pitch along the axial direction of the existing pipe line 50.
[0015]
The roll portion 15 includes a concave portion 16 that engages with the engaging convex portion 12 of the clamp, a support shaft 17 provided at the front of the concave portion, and a first roll 18 that is supported by the support shaft so as to be relatively rotatable. And a plate portion 19 provided above the first roll.
[0016]
On both side walls of the concave portion 16, through holes 16 a corresponding to attachment holes formed in the convex portions for engagement of the clamp are formed. Therefore, by aligning the through hole 16a and the mounting hole 12a, the roll portion 15 can be attached to the clamp portion 11 so that the axial position can be adjusted. As described above, the fixing of the roll portion 15 to the clamp portion 11 is made possible to adjust the position in the tube axis direction, so that the distance between the exit end of the existing pipeline 50 and the first roll 18 and the proximal end side wall surface of the exit side work pit 101 are increased. And the space | interval of the roll part 15 can be adjusted easily, and efficiency improvement of a plastic tube insertion operation | work can be aimed at. That is, depending on the size of the work pit to be formed and the cutting position of the existing pipeline, the length of the existing pipeline protruding from the proximal end side wall surface of the exit-side work pit may be shortened. In this case, if the roll unit 15 cannot adjust the position in the pipe axis direction with respect to the existing pipe line, the work pit needs to be dug again. On the other hand, in the present embodiment, since the roll portion 15 can be fixed so that the position in the pipe axis direction can be adjusted, the work can be performed even when the existing pipe length protruding into the work pit is short. The guide roll member 10 can be fixed to the existing pipeline without re-digging the pits.
[0017]
The support column is swingably connected to the plate portion 19 via a universal joint 40, preferably a ball joint. The strut 20 has a double pipe structure, and the inner pipe and the outer pipe are screwed together, or an adjustment hole is formed in the inner pipe and the outer pipe at a predetermined pitch in the axial direction, and this alignment is performed. Therefore, it can extend and contract in the axial direction. In the present embodiment, as shown in FIG. 7, it is divided into three in the axial direction, and the central portion 22 sandwiched between both end portions 21 and 21 has a double tube structure.
[0018]
The other end of the column 20 extends from the work pit 101 to the ground. The support column includes a universal joint 45 at the other end, and is swingably connected to the support member 30 via the universal joint 45. The universal joint 45 provided at the other end of the column 20 has an engaging projection 46 as shown in FIG. In the present embodiment, two struts are provided. However, the number of installation can be appropriately changed depending on the load applied to the guide roll member, the strength of the struts, and the like.
[0019]
The support member 30 is fixed so as not to move relative to the winch 70. The fixing position of the support member 30 to the winch 70 can be adjusted in the vertical direction (see FIGS. 1 and 9). The support member 30 may be fixed to the winch 70 by fixing the support member 30 to the winch 70 itself, fixing it to a work vehicle (reference numeral 110 in FIGS. 1 and 9) on which the winch is mounted, or holding the winch. It also includes fixing to a member.
[0020]
The support member 30 is a plate-like long member that is orthogonal to the support column and extends in the horizontal direction, and preferably includes a second guide roll 31 that guides the pulling wire and the plastic tube toward the winch 70. By providing the second guide roll 31, it is possible to prevent the pulling wire 50 caught in the winch 70 from coming into contact with other members, thereby improving the efficiency of the plastic pipe drawing operation. As shown in FIGS. 2 and 8, the support member 30 has mounting holes 32 that engage with the engaging protrusions 46 of the universal joint 45 provided at the other end of the support column at a predetermined pitch along the longitudinal direction. Has been. As described above, both ends of the support column 20 are connected to the guide roll member 10 and the support member 30 via the universal joints 40 and 45 so as to be freely connected, and are extendable in the axial direction. Therefore, it is possible to connect the other end of the support column 20 to any of the mounting holes 32 formed in the support member. The universal joint 45 and the mounting hole 32 are connected to each other by a pin 47 so as not to drop off, as shown in FIG.
[0021]
According to the guide roll device configured as described above, the following effects can be obtained. That is, since the guide roll member 10 is attached to the existing pipeline 50 and is also connected to the support column 20 that is substantially integrated with the winch 70, the conventional configuration in which the guide roll is supported only by the existing pipeline. As compared with the above, it is possible to reduce the load applied to the existing pipeline 50, thereby preventing the existing pipeline 50 from being damaged.
[0022]
In addition, since both ends of the support column 20 are connected to the guide roll member 10 and the support member 30 through the universal joints 40 and 45, respectively, the winch 70 is wound in the winding direction of the existing pipe 50. There is no need to arrange them so as to match the direction, thereby improving work efficiency. In other words, the winch is usually placed on the work vehicle, but depending on the situation at the work site, the work vehicle may not be stopped so that the winding direction of the winch and the axial direction of the existing pipe line coincide with each other. . In this case, if the mounting angle of the support column cannot be adjusted, the plastic pipe cannot be inserted. However, according to the guide roll device according to the present embodiment, the support column 20 is connected to the axis of the existing pipeline 50. Since it can be swung in any direction with respect to the direction, the plastic tube can be inserted even if the working vehicle is stopped in any direction.
[0023]
Further, since the fixing position of the support member 30 to the winch 70 can be adjusted in the vertical direction, the work pit 101 can be reduced. That is, as shown in FIG. 9, if the fixing position of the support member 30 is raised upward to increase the inclination angle of the support column 20 in a side view, the plastic tube can be inserted with a small work pit. Thus, the efficiency of the plastic tube insertion work can be improved.
[0024]
【The invention's effect】
According to the guide roll device of the present invention, the pulling wire drawn out from the exit of the existing pipe line by the operation of the pulling apparatus installed on the ground and the movement path of the pipe insertion member that follows the pulling wire are connected to the axis of the pipe line. The guide roll that changes from the direction to the ground direction is supported by the existing pipe line and a column whose length in the axial direction is adjustable, one end of which is fixed to the traction device, and both ends of the column are supported via universal joints. Since it connects, the protection of the existing pipe line in the insertion operation | work of the said pipe | tube penetration member, and working efficiency improvement can be aimed at.
[0025]
Further, if the support member is provided with a second guide roll for guiding the pulling wire and the pipe insertion member toward the pulling device, the winding efficiency of the pulling wire by the pulling device can be improved.
[0026]
If the guide roll member can be fixed to the existing pipe line so that the position in the pipe axis direction can be adjusted, the guide roll member can be efficiently attached to the existing pipe line.
[0027]
Furthermore, if the fixing position of the support member on the traction device side can be adjusted in the vertical direction, the work pit can be reduced, and as a result, the efficiency of the plastic tube insertion work can be improved.
[Brief description of the drawings]
FIG. 1 is a side view showing an example of a plastic tube insertion process using a guide roll device according to an embodiment of the present invention.
FIG. 2 is a plan view of the plastic tube insertion step shown in FIG.
FIG. 3 is a front view of the plastic tube insertion step shown in FIG. 1;
FIG. 4 is an enlarged view of a part A in FIG. 1;
FIG. 5 is an exploded view of a part A in FIG. 1;
FIG. 6 is a view taken in the direction of arrow X in FIG. 5;
FIG. 7 is a detailed view of a column in the guide roll device shown in FIG. 1;
FIG. 8 is a diagram for explaining a connection state between a support column, a guide roll member, and a support member in the guide roll device shown in FIG. 1;
FIG. 9 is a side view showing another example of the plastic tube inserting step using the guide roll device shown in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Guide roll apparatus 10 Guide roll member 20 Support | pillar 30 Support member 40,45 Universal joint 50 Existing pipe line 70 Winch

Claims (1)

When the member to be inserted into the existing pipeline buried in the ground is pulled from the entrance to the exit through the pulling wire into the existing pipeline by operating the traction device fixedly installed on the ground, A guide roll device installed to guide the moving path of the pulling wire and the insertion member subsequent thereto from the axial direction of the existing pipe line toward the ground direction outside the outlet side of the existing pipe line. There,
A first guide roll member fixed to the outlet side end of the existing pipeline, and leading the pulling wire and the insertion member drawn out from the existing pipeline outlet in the ground direction;
A support member fixed to the traction device side so as to be positioned on a moving path of the traction wire between the traction device and an existing pipeline outlet;
One end is provided on the first guide roll member and the other end is provided on the support member.
And the strut and the first guide roll member and the support member, the Rukoto linked via a universal joint, the strut is possible to shake in an arbitrary direction with respect to the axial direction of the existing pipe,
The support member includes a second guide roll member that guides the pulling wire and the insertion member in the direction of the pulling device.
The first guide roll member is fixed to the existing pipe line so that the position in the pipe axis direction can be adjusted,
The guide roll device according to claim 1, wherein the support member is fixed to the traction device so as to be vertically adjustable .

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