JP4514579B2 - Pipe lining method and lining apparatus - Google Patents

Description

  The present invention relates to a pipe lining method and a lining apparatus, and more particularly, a strip as a lining material is spirally wound in a pipe such as an existing buried pipe, and an engagement joint portion formed on a side edge of the strip is provided. The present invention relates to a lining method and a lining apparatus for engaging and lining a pipe.

Conventionally, as a technique of this kind, a method and apparatus for installing a lining pipe making machine in a vertical shaft leading to a pipe to be lined, and feeding the lining material spirally produced by the pipe making machine for lining into the pipe to be lined (For example, Patent Document 1) and a method and apparatus for lining a pipe-making apparatus for lining while moving the pipe-making apparatus for lining along the pipe to be lined (for example, Patent Document 2) ~ 4) etc. are known.
JP-A-6-262672 JP-A-8-61559 JP 2003-39552 A Japanese Patent No. 28245549

  However, both of the above prior art lining methods and lining apparatuses require the side edge joint portions of the strip as the lining material to be engaged with each other in an overlapping manner, or to require a separate joining member for joining the strips. Therefore, there is a problem that the structure of the lining device is complicated and the cost is increased.

  Accordingly, an object of the present invention is to provide a lining method and a lining device that can simplify the structure of the lining device.

The above object of the present invention is a pipe lining method in which a strip is spirally wound in a pipe, and adjacent winding side edges are joined by an engaging portion formed on the strip side edge. The part is formed to be able to be joined by abutting the adjacent winding side edges with each other in the width direction of the strip, and the spiral track of the strip to be wound is a locking part that can be locked to the engaging part. A lining pipe-making machine that is driven to rotate along the pipe is installed in a pipe, and a loading device that is connected to the lining pipe-making machine and applies a traction force or a movement resistance force to the lining pipe-making machine is installed in the pipe. The engaging portion is engaged with the engaging portion, and the engaging portion is provided with a traction force or a movement resistance force with respect to the lining pipe making machine by the load device, and the engaging portion is provided with the spiral. Drive along a trajectory More, characterized in that in association with the winding the strip helically tube to move the steel pipe machine the lining is accomplished by lining method of the tube.

  Further, the above object according to the present invention is a pipe lining device in which a strip is spirally wound in a pipe and an adjacent winding side edge is joined by an engaging portion formed on the strip side edge, The engaging portion is formed to be able to be joined by abutting the adjacent winding side edges with each other in the width direction of the strip. The main body is movable in a tube, and is supported by the main body and is engaged with the engaging portion. A lining pipe-making machine having a stop portion that can be stopped, and a drive unit that is mounted on the main body and that drives the locking portion to rotate along a spiral orbit of the strip to be wound, and the lining pipe-making machine And a loading device that is connected to the lining pipe making machine to apply a traction force or a movement resistance force to the lining pipe making machine.

  Moreover, it is preferable that the said lining apparatus is supported so that the said latching | locking part can roll along the side edge of the said spiral wound while latching to the said engaging part.

  In the lining apparatus, it is preferable that the lining pipe making machine includes a guide member for guiding a strip onto the spiral track.

  In the lining apparatus, it is preferable that the lining pipe making machine includes a pressing member that presses the strip against the inner wall of the pipe via the guide member.

  Further, the lining device includes a roller that enables the lining pipe making machine to move the lining pipe making machine within the pipe, and the roller to line the main body so as not to rotate around the pipe axis in the pipe. It is preferable to have pressing means for pressing.

  According to the lining method and the lining device of the present invention, the lining strip is a strip that can be joined by abutting adjacent winding side edges in the width direction of the strip, and the locking portion of the lining pipe making machine is stripped. Since the lining is formed by engaging with the engaging portion of the strip and turning the engaging portion along the spiral path of the strip, the structure of the lining device can be simplified.

  A pipe lining method and a lining apparatus according to the present invention will be described below with reference to the embodiments shown in FIGS.

  FIG. 1 shows a state in which the lining is applied to the middle of the pipe by the device of the present invention. Referring to FIG. 1, the existing underground pipe 3 to be lined communicates with the two vertical shafts 1 and 2. In the pipe 3, a lining pipe making machine 5 for winding the lining strip 4 in a spiral shape and lining the inside of the pipe 3 is disposed. A control device 6 that controls the lining pipe making machine 5 is connected to the lining pipe making machine 5 by a connecting member 7 such as a wire, and a back tension is applied to the lining pipe making machine 5 near the ground entrance of one vertical shaft 1. The load applying device 8 is provided. In the other vertical shaft 2, a curl forming device 9 is disposed near the bottom pipe entrance, and a drum 10 around which the strip 4 is wound is installed near the ground entrance.

  The strip 4 is of a type in which adjacent winding side edges are joined by engaging portions formed on the side edges thereof, and can be joined by abutting adjacent winding side edges in the width direction of the strip 4. Yes. Such strips 4 have various shapes, but as engaging portions, for example, as shown in side views in FIGS. Moreover, it can be set as the shape by which the engagement recessed part 4b engaged with the engagement convex part 4a was formed in the other side end surface.

  As shown in enlarged views in FIGS. 5 and 6, the lining pipe making machine 5 includes a main body 11 that can move in the pipe 3, and a locking portion 12 that is supported by the main body 11 and that can be locked in the engaging recess 4 b. And a drive unit 13 that is mounted on the main body 11 and that is driven to rotate along the spiral trajectory of the strip 4 around which the locking unit 12 is to be wound. In addition, the latching | locking part 12 can also be made into the shape which can be engaged with the engagement convex part 4a.

  The main body 11 supports a roller 14 that can move the main body 11 within the tube 3. The main body 11 includes pressing means 15 that presses the roller 14 against the lining. The pressing means 15 can employ, for example, an elastic member such as a coil spring, a hydraulic jack, and a pneumatic jack.

  The drive unit 13 can be a motor provided inside the main body 11. The drive unit 13 is driven under the control of the control device 6 through the power supply line 16. A turntable 17 is fixed to the rotation drive shaft 13 a of the drive unit 13. A rod-like support member 18 is projected from the rotating disk 17, and the locking portion 12 is attached to the support member 18. The locking portion 12 is supported so as to roll along the side edge of the strip 4 wound spirally while being locked to the engaging portion 4b. In the example of illustration, the latching | locking part 12 is carrying out the disk shape which can be fitted in the recessed part of the engaging recessed part 4b, and is rotatably supported. Further, a plurality of the locking portions 12 are spaced apart on the spiral track of the strip 4.

  The turntable 17 is further provided with a guide member 19 for guiding the strip 4 on the spiral track. The guide member 19 includes a guide pole 19a having a truncated conical tip and a tapered guide plate 19b. The guide pole 19a is supported so as to be rotatable about its axis, and a plurality of guide poles 19a are arranged along the inner peripheral surface of the tube 3. The guide plate 19b extends longer than the guide pole 19a and has a cross-sectional shape.

  The guide pole 19 a can press the wound strip 4 against the inner wall of the tube 3 by the action of the pressing member 20. In the illustrated example, the pressing member 20 employs an elastic pressing means using a spring, but an inelastic pressing means using an adjuster or the like may be used.

  The loading device 8 applies a traction force or a movement resistance force to the lining pipe making machine 5 via the connecting member 7. An example of such a load device 8 is a winch having a back tension function.

  As shown in FIGS. 7 and 8, the curl forming apparatus 9 includes a three-point roll processing unit 24 having a pair of rotational drive rollers 21 and 22 and a curvature adjusting roller 23, a guide roller 25 disposed oppositely, It has. The curvature adjusting roller 23 can adjust the relative distance between the pair of rotation driving rollers 21 and 22, and the bending crease is formed on the strip 4 with a desired curvature by adjusting the relative distance. The rotation driving rollers 21 and 22 and the curvature adjusting roller 23 are arranged with a certain inclination angle, and form a desired spiral shape on the strip 4 delivered from the drum 10.

  According to the lining apparatus having the above-described configuration, the strip 4 delivered from the drum 10 is spirally delivered with a desired curvature by the curl forming apparatus 9, and the strip 4 is guided to the locking portion 12 by the guide member 19. The stopping portion 12 is engaged with the engaging recess 4b of the strip 4, and the driving portion 13 is driven while the traction force or the movement resistance force is applied to the lining pipe making machine 5 by the loading device 8 to lock the locking portion. While the lining pipe making machine 5 is moved while being driven to rotate along the spiral trajectory 12, the strip is wound spirally in the pipe 3 to perform lining.

  The guide plate 19b guides the strip 4 delivered from the curl forming device 9 to the guide pole 19a. The guide pole 19a guides the strip 4 received from the guide plate 19b to the outer periphery of the guide pole 19a where the locking portion 12 is located, and further slides the cylindrical outer periphery of the guide pole 19a. Guide to stop 12.

  The guide pole 19a presses the strip 4 immediately after winding by the cylindrical outer peripheral portion by the action of the pressing member 20, and leveles the lining so that there is no unevenness.

  During the movement of the lining pipe making machine 5, the pressing means 15 is operated to press the roller 14 against the lining, so that the main body 11 of the lining pipe making machine 5 is caused by the frictional resistance between the locking portion 12 and the engaging recess 4b. It is designed not to rotate.

It is a side view which shows the state which is lining by suitable embodiment of the lining apparatus which concerns on this invention in a partial cross section. It is a side view which shows one Embodiment of the strip for lining used for this invention. It is a side view which shows one Embodiment of the strip for lining used for this invention. It is a side view which shows one Embodiment of the strip for lining used for this invention. It is a side view which expands and shows the pipe manufacturing machine for lining which is a part of FIG. It is a front view which shows the pipe making machine for linings of FIG. It is a side view which expands and shows the curl forming apparatus which is a part of FIG. It is a front view which shows the curl forming apparatus of FIG.

Explanation of symbols

3 Pipe 4 Strip 4a, 4b Engagement part 5 Lining pipe making machine 8 Loading device 9 Curly hook forming device 11 Body 12 Locking part 13 Drive part 14 Roller 15 Pressing means 19 Guide member 20

Claims (6)

A method for lining a tube, in which a strip is wound spirally in a tube, and adjacent winding side edges are joined by an engagement portion formed on the strip side edge,
The engaging portion is formed to be joinable by abutting the adjacent winding side edges with each other in the width direction of the strip,
A lining pipe-making machine that drives the locking portion that can be locked to the engaging portion to rotate along the spiral trajectory of the strip to be wound is installed in the pipe,
A loading device that is connected to the lining pipe making machine and applies a traction force or a movement resistance force to the lining pipe making machine is disposed outside the pipe.
The engaging portion is engaged with the engaging portion, and the engaging portion is turned along the spiral track while applying a traction force or a movement resistance force to the lining pipe making machine by the load device. A pipe lining method, wherein the lining pipe making machine is moved as the strip is spirally wound in the pipe by being driven. A pipe lining device for spirally winding a strip in a pipe and joining adjacent winding side edges by an engagement portion formed on the side edge of the strip,
The engaging portion is formed to be joinable by abutting the adjacent winding side edges with each other in the width direction of the strip,
A main body movable in the tube, a locking portion supported by the main body and lockable to the engaging portion, and a swing drive provided on the main body along the spiral trajectory of the strip to be wound. A lining pipe-making machine having a drive unit to be
A loading device connected to the lining pipe making machine to give a traction force or a movement resistance force to the lining pipe making machine;
A pipe lining device characterized by comprising: The lining device according to claim 2, wherein the locking portion is supported so as to be rollable along a side edge of the spirally wound strip while being locked to the engaging portion. . The lining apparatus according to claim 2, wherein the lining pipe making machine includes a guide member for guiding a strip onto the spiral track. The lining apparatus according to claim 4, wherein the lining pipe making machine includes a pressing member that presses the strip against the inner wall of the pipe via the guide member. The lining pipe making machine includes a roller that enables the lining pipe making machine to move within a pipe, and a pressing unit that presses the roller against the lining so that the main body does not rotate around the pipe axis in the pipe. The lining apparatus according to claim 2.

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