Pipeline regeneration material feeding device

Abstract

Provided is a pipeline rehabilitation material feeding device that reduces the burden on workers engaged in the operation of feeding pipeline rehabilitation materials. 【Solution means】The pipeline rehabilitation material feeding device 10 includes a plurality of drive rollers 30-1 to 30-3, and a plurality of non-drive rollers 20-1 to 20-2, 40, 50-1 to 50-n. Each stage of non-drive rollers has a right roller and a left roller. The right roller and the left roller in each stage of non-drive rollers are each inclined inward so as to sandwich the pipeline rehabilitation material 500 therebetween. The angle between the right roller and the left roller in each stage of non-drive rollers becomes smaller as it approaches the manhole 700.

Description

Technical Field

[0001] This specification discloses a technology related to a pipeline rehabilitation material feeding device.

Background Art

[0002] There is known a pipeline rehabilitation technology for rehabilitating existing buried pipelines such as aging or damaged sewer and power pipelines without excavation. Patent Document 1 describes a pipeline rehabilitation technology in which a tubular pipeline rehabilitation material is drawn into an existing pipeline and then hardened in a state where the pipeline rehabilitation material is inflated in the existing pipeline.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the pipeline rehabilitation technology of Patent Document 1, the operation of pulling out the folded pipeline rehabilitation material from the loading platform and feeding it into the existing pipeline while unfolding it is heavy labor for the operator, and there has been a demand for reducing the burden on the operator engaged in the operation of feeding the pipeline rehabilitation material.

Means for Solving the Problems

[0005] One form disclosed in this specification is a pipeline rehabilitation material feeding device that feeds a folded tubular pipeline rehabilitation material into an existing pipeline. This pipeline rehabilitation material feeding device includes a plurality of driving rollers and a plurality of non-driving rollers. The plurality of driving rollers are arranged in multiple stages from the upstream to the downstream in the conveying direction for conveying the pipeline rehabilitation material, and drive and rotate about a rotation axis perpendicular to the conveying direction and along the horizontal direction to convey the pipeline rehabilitation material. The plurality of non-driving rollers are arranged in multiple stages from the upstream to the downstream in the conveying direction onto a manhole connected to the existing pipeline downstream of the plurality of driving rollers, and convey the pipeline rehabilitation material by non-driving rotation. Each stage of the non-driving rollers has a right-side roller that non-drivingly rotates about a rotation axis perpendicular to the conveying direction on the right side of the conveying direction, and a left-side roller that non-drivingly rotates about a rotation axis perpendicular to the conveying direction on the left side of the conveying direction. The right-side roller and the left-side roller in each stage of the non-driving rollers are each inclined inward so as to sandwich the pipeline rehabilitation material therebetween. The angle between the right-side roller and the left-side roller in each stage of the non-driving rollers becomes smaller as it approaches the manhole. According to the pipeline rehabilitation material feeding device of this form, while pulling out the folded pipeline rehabilitation material by a plurality of driving rollers and unfolding it into a cylindrical shape by a plurality of non-driving rollers, the pipeline rehabilitation material can be fed into the existing pipeline. Thereby, the burden on the workers engaged in the operation of feeding the pipeline rehabilitation material can be reduced.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0007] FIG. 1 is an explanatory diagram showing a pipeline rehabilitation material feeding device 10. The pipeline rehabilitation material feeding device 10 is used in a pipeline rehabilitation method in which a tubular pipeline rehabilitation material 500 is drawn into an existing pipeline 800 buried in the ground and then hardened in a state where the pipeline rehabilitation material 500 is inflated in the existing pipeline 800. The pipeline rehabilitation material feeding device 10 is a device that feeds out the folded tubular pipeline rehabilitation material 500 to the existing pipeline 800.

[0008] The existing pipeline 800 is a sewer connected to a manhole 700. The existing pipeline 800 may be other pipelines buried in the ground, such as a water supply pipe, a gas pipe, a power pipe, a communication cable pipe, etc.

[0009] The pipeline rehabilitation material 500 is a tubular fiber cloth impregnated with a thermosetting resin. The pipeline rehabilitation material 500 is brought into the work site in a folded state on the loading platform 650 of the cold storage truck 600. During the operation of drawing the pipeline rehabilitation material 500 into the existing pipeline 800, the pipeline rehabilitation material 500 has a laminated portion 510, a flat portion 520, a deployed portion 530, and a tip portion 550. The laminated portion 510 is the portion folded on the loading platform 650 of the cold storage truck 600. The flat portion 520 is the portion drawn out from the loading platform 650 of the cold storage truck 600 by the pipeline rehabilitation material feeding device 10 and conveyed in a flat state. The deployed portion 530 is the portion conveyed in a state of being deployed from a flat state into a cylindrical shape. The tip portion 550 is the portion fixed to the towing sling 552 using a tape 554. The tip portion 550 is towed to the other end of the existing pipeline 800.

[0010] The pipeline rehabilitation material feeding device 10 includes a frame 12, two non-driven rollers 20-1, 20-2, three driven rollers 30-1, 30-2, 30-3, an inverter 35, a non-driven roller 40, and a plurality of non-driven rollers 50-1 to 50-n. The frame 12 supports various rollers of the pipeline rehabilitation material feeding device 10. The number and arrangement of various rollers of the pipeline rehabilitation material feeding device 10 can be appropriately changed according to the characteristics such as the weight, width, and material of the pipeline rehabilitation material 500, as well as the situation of the work site.

[0011] The non-driven rollers 20-1 and 20-2 of the pipeline regeneration material feeding device 10 are arranged in two stages from the upstream to the downstream in the conveying direction DC for conveying the pipeline regeneration material 500. The non-driven rollers 20-1 and 20-2 convey the pipeline regeneration material 500 by non-driven rotation about a rotation axis orthogonal to the conveying direction DC and along the horizontal direction.

[0012] The driving rollers 30-1, 30-2, and 30-3 of the pipeline regeneration material feeding device 10 are arranged in three stages from the upstream to the downstream in the conveying direction DC for conveying the pipeline regeneration material 500. The driving rollers 30-1, 30-2, and 30-3 convey the pipeline regeneration material 500 by driving rotation about a rotation axis orthogonal to the conveying direction DC and along the horizontal direction. The driving rollers 30-1, 30-2, and 30-3 are driven to rotate by the rotational power output from an electric motor (not shown) controlled by an inverter 35. The driving roller 30-2 is arranged at a position higher than the driving roller 30-1 located on the upstream side in the conveying direction DC. The driving roller 30-2 is arranged at a position higher than the driving roller 30-3 located on the downstream side in the conveying direction DC.

[0013] The non-driven roller 40 of the pipeline regeneration material feeding device 10 is arranged between the driving roller 30-3 and the non-driven roller 50-1. The non-driven roller 40 conveys the pipeline regeneration material 500 by non-driven rotation about a rotation axis orthogonal to the conveying direction DC and along the horizontal direction.

[0014] The plurality of non-driven rollers 50-1 to 50-n in the pipeline regeneration material feeding device 10 are arranged in a plurality of stages from the downstream of the non-driven roller 40 onto the manhole 700 from the upstream to the downstream in the conveying direction DC. The plurality of non-driven rollers 50-1 to 50-n convey the pipeline regeneration material 500 by non-driven rotation.

[0015] FIG. 2 is an explanatory view of a plurality of non-driven rollers 50-1 to 50-n as seen from the upstream in the conveyance direction DC. The non-driven roller 50-a in FIG. 2 is a non-driven roller located upstream of the non-driven roller 50-b among the plurality of non-driven rollers 50-1 to 50-n.

[0016] Each stage of the non-driven rollers 50-1 to 50-n has a right roller 52 and a left roller 54. The right roller 52 rotates non-driven about a rotation axis orthogonal to the conveyance direction DC on the right side of the conveyance direction DC. The left roller 54 rotates non-driven about a rotation axis orthogonal to the conveyance direction DC on the left side of the conveyance direction DC.

[0017] The right roller 52 and the left roller 54 in each stage of the non-driven rollers 50-1 to 50-n are each inclined inward so as to sandwich the pipeline rehabilitation material 500 therebetween. The angle between the right roller 52 and the left roller 54 in each stage of the non-driven rollers 50-1 to 50-n becomes smaller as it approaches the manhole 700.

[0018] Non-driven rollers 60-1, 60-2, 60-3, 60-4 are arranged at the connection portion 810 of the existing pipeline 800 with the manhole 700. The non-driven rollers 60-1, 60-2, 60-3, 60-4 guide the pipeline rehabilitation material 500 from the manhole 700 to the existing pipeline 800.

[0019] According to the pipeline rehabilitation material feeding device 10 described above, while pulling out the folded pipeline rehabilitation material 500 by the plurality of driving rollers 30-1, 30-2, 30-3, and while expanding it into a cylindrical shape in the plurality of non-driven rollers 50-1 to 50-n, the pipeline rehabilitation material 500 can be fed into the existing pipeline 800. Thereby, the burden on the operator engaged in the work of feeding out the pipeline rehabilitation material 500 can be reduced.

[0020] The technology disclosed in this specification is not limited to the above-described embodiments, examples, and variations, and can be realized in various configurations without departing from the spirit thereof. For example, among the technical features in the above-described embodiments, examples, and variations, those corresponding to the technical features in each form described in the column of the outline of the invention can be appropriately replaced and combined in order to solve some or all of the above-described problems or to achieve some or all of the above-described effects. In addition, technical features not described as essential in this specification can be appropriately deleted.

Explanation of Signs

[0021] 10…Pipe regeneration material feeding device 12…Frame 20-1, 20-2…Non-driven rollers 30-1~30-3…Driven rollers 35…Inverter 40…Non-driven roller 50-1~50-n…Non-driven rollers 50-a…Non-driven roller 50-b…Non-driven roller 52…Right roller 54…Left roller 60-1~60-4…Non-driven rollers 500…Pipe regeneration material 510…Laminated part 520…Flat part 530…Deployment part 550…Tip part 552…Traction sling 554…Tape 600…Refrigerated truck 650…Loading platform 700…Manhole 800…Existing pipeline 810…Connection part DC…Conveying direction

Claims

Claim 1 A pipeline rehabilitation material feeding device for feeding a folded tubular pipeline rehabilitation material into an existing pipeline, a plurality of driving rollers arranged in a plurality of stages from upstream to downstream in the conveying direction for conveying the pipeline rehabilitation material, and driven to rotate about a rotation axis perpendicular to the conveying direction and along the horizontal direction to convey the pipeline rehabilitation material; a plurality of non-driving rollers arranged in a plurality of stages from upstream to downstream in the conveying direction onto a manhole connected to the existing pipeline from downstream of the plurality of driving rollers, and conveying the pipeline rehabilitation material by non-driving rotation and comprising each stage of the non-driving rollers has a right-side roller that non-drivingly rotates about a rotation axis perpendicular to the conveying direction on the right side of the conveying direction, and a left-side roller that non-drivingly rotates about a rotation axis perpendicular to the conveying direction on the left side of the conveying direction; the right-side roller and the left-side roller in each stage of the non-driving rollers are each inclined inward so as to sandwich the pipeline rehabilitation material therebetween; and an angle between the right-side roller and the left-side roller in each stage of the non-driving rollers becomes smaller as it approaches the manhole. A pipeline rehabilitation material feeding device.

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