JPH11334601A - Cart mounted with drum wound by long pipe liner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cart mounted with a drum wound by long pipe liner that can easily have on board a drum wound by a long pipe liner before being inserted to the previously installed pipe line for transporting by self-propelling or traction, and can serve for the lining work in the previously installed pipe line by pulling out the long pipe liner from the drum. SOLUTION: In this drum, side frames 32 or side plates are provided at both ends of a core frame 31 or a core cylinder. A long pipe liner 1 can be wound between the both side frame 32 or side plates on the core frame 31 or the cylinder. This cart has on board a drum provided with a rotation axis 33 on an elongation connecting the both side frames 32 or the center portions of the side plates. And stand 41 is installed on a floor or a bogy 4 that can run by self-propelling or by traction. On the stand 41, a pair of bearing 411 are provided with interval that open upward. The cart can be load with a drum 3 so that the drum 3 is placed from above on the both ends of the rotational axis 33 striding the bearings 411.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle equipped with a long pipe liner and a drum on which a long pipe liner is wound before being inserted into an existing pipeline.

[0002]

2. Description of the Related Art Conventionally, as a method of rehabilitating an aging pipe made of reinforced concrete pipe (fume pipe) or steel pipe, a new resin pipe having a predetermined length and a small diameter is inserted into an existing pipe while sequentially connecting the pipes. And laying a rehabilitation pipeline,
There is known a method of sealing by injecting a backfill material such as mortar or a foamable resin material into a gap with an existing pipeline.

In the rehabilitation method using this backfill material, there is a problem that the effective flow rate is reduced because the inner diameter of the rehabilitation pipe is considerably smaller than the inner diameter of the existing pipe. Since it is necessary to inject a sealing material into the gap between the road and the seal, there is a problem that workability is poor and rehabilitation work is slow.

In view of this point, for example, Japanese Patent Laid-Open No.
No. 31 discloses a pipe liner deformed into a U-shaped cross section having a cylindrical shape at a shape memory temperature made of a thermoplastic resin and drawn into a pipe inner surface such as a sewage pipe by heating and pressure expansion. And lining the inner surface of the pipe.

[0005] When lining the inner surface of a pipe such as a sewer pipe using such a pipe liner, the pipe liner is wound around a drum in a state where the pipe liner is deformed into a U-shaped cross section, and transported to the construction site in a drum shape. At the time of construction, the drum was set on a gantry and the pipe liner was pulled out by manually rotating the drum, and was drawn into a pipe such as a sewage pipe to perform lining work.

However, in such a conventional method, a crane or the like is required when the drum is transported or when the drum is set on a gantry at a construction site, and a large rotational force is required depending on the diameter of the pipe liner during the construction. Therefore, there is a problem that workability is poor.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and easily loads and constructs a drum wound with a long pipe liner before being inserted into an existing pipeline. The purpose is to provide a long pipe liner winding drum loading vehicle that can be transported to the site by self-propelling or towing, draw out a long pipe liner from the drum, and use it for lining construction in the existing pipeline It is.

[0008]

The invention according to claim 1 of the present application (the present invention 1) is characterized in that side frames or side plates are provided at both ends of a core frame or a core tube, and A long pipe liner rolling drum loading vehicle in which a long pipe liner can be wound between both side frames or side plates, and a drum having a rotating shaft provided on an extension line connecting the center portions of both side frames or side plates. A gantry is provided on the floor of a self-propelled or towable trolley, and a pair of bearings that are open upward are provided on the gantry at intervals, and both ends of the rotary shaft are astride these bearings. A long pipe liner winding drum loading vehicle in which the drum can be loaded so as to be loaded from above.

The invention described in claim 2 of the present application (Invention 2)
The present invention is provided with a drum rotating mechanism that can rotate the drum at least in a feeding direction of a long pipe liner when the drum is loaded on the carriage, and a brake mechanism that can stop the rotation of the drum. 1 is a vehicle loaded with a long pipe liner drum.

In the present invention, as a material of the pipe liner, a thermoplastic resin such as polyethylene which can be used as a pipe material for normal rehabilitation can be mentioned, and high-density polyethylene is particularly preferable.

In the present invention, as the pipe liner, a cylindrical pipe extruded from an extruder is cooled to a shape memory temperature, and a shape capable of recovering a cylindrical shape at the shape memory temperature is given. What deform | transformed so that an inner area may be reduced and what was wound on the drum in this state is used.

[0012]

According to the present invention, a long pipe liner rolling drum loading vehicle is provided with a platform on the floor of a self-propelled or towable truck, and a pair of bearings which open upward on the platform are provided at intervals. The two ends of the rotary shaft are placed from above in such a manner as to be placed on the bearings, so that the drum can be loaded, so that the long pipe liner before being inserted into the existing pipeline can be used. The wound drum can be easily loaded and transported to the construction site by self-propelled or towed.At the construction site, a long pipe liner is pulled out while the drum is loaded on the trolley, and lining in the existing pipeline Can be used for construction.

[0013] The truck is provided with a drum rotation mechanism that can rotate the drum at least in a feeding direction of the long pipe liner when the drum is loaded, and a brake mechanism that can stop the rotation of the drum. Accordingly, at the construction site, the long pipe liner can be easily pulled out at a constant speed while the drum is rotated by the drum rotating mechanism, and the lining in the existing pipeline can be provided with good workability. In addition, when the amount of pulling out the long pipe liner becomes excessive, it can be adjusted by stopping the rotation of the drum by the brake mechanism.
Furthermore, if the rotation direction of the drum can be rotated not only in the feeding direction of the long pipe liner but also in the retraction direction by the drum rotation mechanism, for some reason, the long pipe liner inserted into the existing pipeline is pulled out. When it is necessary to do so, it can be easily pulled out.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a part of a pipe liner used in the present invention, and FIG. 2 is a front view for explaining a manufacturing process of the pipe liner shown in FIG.

As shown in FIG. 1, the pipe liner 1
It is made of high-density polyethylene, and has a concave portion 11 along the axial direction on the outer periphery in a state where the capability of recovering a cylindrical shape at the shape memory temperature is provided, so that the area in the cross-sectional outer shape is reduced. It has been transformed. This pipe liner 1
Is laid in an existing pipeline, steam is continuously supplied into the pipe liner 1 to restore the shape of the cylinder, and the cylinder is expanded by applying internal pressure in a preheated state. It is used as a lining material that is tightly fixed to the inner surface of the pipeline.

As a method for manufacturing the pipe liner 1, for example, as shown in FIG. 2, a cylindrical tube is extruded by an extruder 21 (extrusion temperature 190 ° C.), and the cylindrical tube is passed through a cooling water tank 22. Then, it is cooled by a deforming device 23 and pulled by a pulling device 24 so as to have a concave portion along the axial direction on the outer periphery at a shape memory temperature (resin temperature 125 ° C.) at a shape memory temperature (resin temperature 125 ° C.). For example, a method of winding on the 26 is adopted.

Hereinafter, an example of a vehicle loaded with a long pipe liner winding drum according to the present invention will be described with reference to FIGS.
As shown in FIG. 3, the drum 3 has side frames 32, 32 provided at both ends of a core frame 31, and the side frames 3 around the core frame 31.
The long pipe liner 1 can be wound between 2 and 32. The rotating shaft 33 is provided on a line connecting the central portions of the both side frames 32 and 32 and on an extension thereof.

As shown in FIG. 4, the carriage 4 is capable of self-running or towing, and has a pair of first mounts 41 on its floor.
Are provided at intervals, and a bearing portion 411 that opens upward is provided on the first base 41.

The bearing 411 of the first gantry 41 of the carriage 4
The drum 3 can be stacked so that both ends of the rotating shaft 33 are placed from above. A second frame (not shown) is provided on the floor of the cart 4.
A roller 5 for driving the rotation of the drum and a brake roller 6 are mounted on the mount so that the drum 3 can be brought into contact with the outer peripheral edges of both side frames 32 when the drum 3 is loaded. The drum rotation driving roller 5 can be driven and rotated in a feeding direction and a retraction direction of the long pipe liner by a driving device (not shown). The rotation of the drum 3 can be stopped by the contact of the brake roller 6. Note that a general-purpose brake device of a type that applies frictional resistance may be provided instead of the brake roller 6.

The mode of use of the long pipe liner winding drum loading vehicle of the present invention described with reference to FIGS. 3 and 4 will be described below with reference to FIG. The drum 3 in a state where the long pipe liner 1 is wound around the bearing portion 411 of the first gantry 41 of the carriage 4 is loaded from above so as to straddle both ends of the rotation shaft 33. In this state, the carriage 4 is conveyed to the construction site by self-propelled or towed.

By driving the drum rotation drive roller 5 at the construction site, the long pipe liner 1 is pulled out at a constant speed and inserted into an existing pipe (not shown). In this state, after heating to the shape memory temperature of the pipe liner and heating and restoring to the cylindrical body, the compressed air is sent from the steam generator / pressurizer into the cylindrical body to expand and compress it from the inside. In close contact with the inner surface of the road, in this pressurized state,
Lining of the inner surface of the existing pipeline is performed by cooling and fixing.

[0022]

As described above, the vehicle loaded with a long pipe liner winding drum according to the present invention is constructed as described above, so that the drum wound with the long pipe liner before being inserted into the existing pipeline can be easily loaded. Then, it can be transported by self-propelled or towed to the construction site, and a long pipe liner can be pulled out from the drum and used for lining construction in the existing pipeline.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of an example of a long pipe liner used in the present invention.

FIG. 2 is a schematic diagram illustrating an example of a method for manufacturing the long pipe liner shown in FIG.

FIG. 3 is an explanatory view showing an example of a drum used in the present invention, wherein (a) is a front view and (b) is a side view.

FIG. 4 is a front view showing an example of the long pipe liner winding drum loading vehicle of the present invention.

[Description of Signs] 1 long pipe liner 3 drum 4 carriage 5 drum rotation drive roller 6 brake roller 31 core frame 32 side frame 33 rotating shaft

Claims (2)

[Claims] A side frame or side plate is provided at both ends of a core frame or a core tube, and a long pipe liner can be wound between the side frames or side plates on the core frame or the core tube. A long pipe liner winding drum loading vehicle that loads a drum provided with a rotation axis on an extension line connecting the center part of the side plate, a gantry is provided on the floor of a self-propelled or towable trolley,
A pair of bearings that are open upward are provided on the gantry at an interval, and the drum can be stacked so that both ends of the rotating shaft are placed from above from above the bearings. A vehicle equipped with a long pipe liner wound drum. 2. A drum rotating mechanism capable of rotating the drum at least in a feeding direction of a long pipe liner when the drum is loaded on the carriage, and a brake mechanism capable of stopping rotation of the drum. The long pipe liner winding drum loading vehicle according to claim 1, wherein: