阅读说明：本技术 一种软管支撑结构、管道内壁修复装置及管道内壁修复方法 (Hose supporting structure, pipeline inner wall repairing device and pipeline inner wall repairing method ) 是由 李伦 朱明闯 于 2021-02-03 设计创作，主要内容包括：本发明提供了软管支撑结构、管道内壁修复装置及管道内壁修复方法,包括主轴及沿主轴径向延伸的多条支臂,每条支臂的末端均设置有支撑头,主轴为中空结构,支臂包括均呈筒状的第一段臂和第二段臂,第一段臂第一端与主轴贯通连接,第二段臂第一端密封滑动插设于第一段臂第二端内,第二段臂第二端与支撑头固定连接,主轴连接充气管道,支撑头包括支撑板、胀片和胀片安装板,支撑板为中空结构,支撑板内侧与第二段臂贯通连接,支撑板外侧开有通气孔,胀片安装板设有若干个与通气孔位置相对的安装板孔,胀片被压合至支撑板外侧,安装板孔内胀片能够被充胀呈气囊状。本发明能够在支撑软管的同时实现管道修复,且能够避免修复过程中产生卡滞现象。(The invention provides a hose supporting structure, a pipeline inner wall repairing device and a pipeline inner wall repairing method, which comprise a main shaft and a plurality of support arms extending along the radial direction of the main shaft, wherein the tail end of each support arm is provided with a supporting head, the main shaft is of a hollow structure, the support arms comprise a first section of cylindrical arm and a second section of cylindrical arm, the first end of the first section of cylindrical arm is communicated with the main shaft, the first end of the second section of cylindrical arm is hermetically and slidably inserted into the second end of the first section of cylindrical arm, the second end of the second section of cylindrical arm is fixedly connected with the supporting heads, the main shaft is connected with an inflation, the inflatable sheet and the inflatable sheet mounting plate are of a hollow structure, the inner side of the supporting plate is in through connection with the second section arm, an air vent is formed in the outer side of the supporting plate, the inflatable sheet mounting plate is provided with a plurality of mounting plate holes opposite to the positions of the air vent, the inflatable sheet is pressed to the outer side of the supporting plate, and the inflatable sheet in the mounting plate holes can be inflated to be in an air bag shape. The invention can realize pipeline repair while supporting the hose and can avoid the clamping stagnation phenomenon in the repair process.)

1. A hose supporting structure is characterized by comprising a main shaft and a plurality of supporting arms extending along the radial direction of the main shaft, wherein the tail end of each supporting arm is provided with a supporting head, the supporting arms are divided into two groups along the axial direction of the main shaft, each group of supporting arms are uniformly distributed at intervals along the circumferential direction of the main shaft, and the distribution positions of the two groups of supporting arms are staggered; the main shaft is of a hollow structure, the support arm comprises a first section arm and a second section arm which are both cylindrical, the first end of the first section arm is communicated with the main shaft, the first end of the second section arm is hermetically and slidably inserted into the second end of the first section arm, the second end of the second section arm is fixedly connected with the support head, and the main shaft is connected with an inflation pipeline;

the support head includes backup pad, bloated piece and bloated piece mounting panel, the backup pad is hollow structure, the backup pad inboard with second section arm through connection, open in the backup pad outside has the air vent, bloated piece mounting panel be equipped with a plurality of with the mounting plate hole that the air vent position is relative, bloated piece closely seals pressfitting to the backup pad outside by bloated piece mounting panel for the downthehole bloated piece of mounting panel can be inflated and be the gasbag form.

2. The hose support structure of claim 1, wherein the support heads are arcuate to match the curvature of the inner wall of the conduit, the number of arms in each set being 4, and the arc length of each support head being between 1/8 and 1/4 of the circumference of the hose.

3. The hose support structure of claim 2, wherein the mounting plate comprises four corner plates that can be enclosed to form a frame, the corner plates are L-shaped, one end of each corner plate is in sealing engagement with a side of the support plate, the other end of each corner plate presses the edge of each expansion plate into sealing engagement with the support plate, a rigid bead is connected between a pair of longer corner plates, the beads press the lower expansion plates into sealing engagement with the support plates, and the mounting plate holes are formed between the corner plates and the beads and between the beads.

4. A pipeline inner wall repair device, comprising the hose support structure according to any one of claims 1 to 3, wherein a hose heating structure is fixedly connected to one side of the support plate.

5. The pipeline inner wall repair device according to claim 4, wherein the hose heating structure includes a connection plate fixedly connected to the support plate, and a flame gun or a heating wire is installed outside the connection plate.

6. The device for repairing the inner wall of the pipeline as claimed in claim 5, wherein a guide structure is arranged at the end of the main shaft, the guide structure comprises universal wheels and three mounting rods, each mounting rod comprises a first section rod and a second section rod, a first end of each first section rod is fixedly connected with the main shaft and extends in the radial direction of the main shaft, the first section rods are uniformly distributed at intervals along the circumferential direction of the main shaft, a first end of each second section rod is hinged to a second end of each first section rod, a second end of each second section rod is fixedly connected with the universal wheels, compression springs are connected between the first section rods and the second section rods, and the universal wheels can be attached to the inner wall of the hose after the second section rods are spread.

7. The pipe inner wall repair device according to claim 6, further comprising a traction structure, wherein the traction structure comprises a traction rope, a rope winding column and a speed reduction motor, the rope winding column is driven by the speed reduction motor to rotate, a first end of the traction rope is fixedly connected to the rope winding column, and a second end of the traction rope is fixedly connected with the main shaft.

8. The pipe inner wall repair device of claim 7, wherein three of the second rods are sleeved by shearable rubber bands to form the installation rod in a folded receiving shape.

9. A pipeline wall restoration method using the pipeline wall restoration apparatus according to claim 8, comprising the steps of:

(1) the pipeline to be repaired is positioned between the first wellhead and the second wellhead, a hose is put into the pipeline through the first wellhead, and the hose is laid flat and extended to the second wellhead;

(2) the pipeline inner wall repairing device is placed into the first wellhead, the pipeline inner wall repairing device is in an initial state that the second section of arm is inserted into the first section of arm to the maximum extent, the three second sections of rods are sleeved to form a folded state, the outer diameter of the pipeline inner wall repairing device is minimum, and the pipeline inner wall repairing device can be placed into the hose only by slightly expanding the end part of the hose;

(3) loosening the lantern ring to enable the connecting rod to be in a stretched state, and elastically sending the universal wheels to be in contact with the inner wall of the pipeline;

(4) the main shaft is inflated through the inflation pipeline, air flows through the first section of arm, the second section of arm, the supporting plate, the vent hole and the mounting plate hole, the second section of arm is pushed outwards to enable the supporting arm to be lengthened, and meanwhile, the expansion sheet is inflated to protrude outwards from the mounting plate hole to form an air bag;

(5) after the air bag is contacted with the inner wall of the hose, the traction rope is connected with the main shaft, the speed reducing motor drives the rope winding column to rotate so as to pull the pipeline wall repairing device to move in the hose, the hose heating structure is started to heat and solidify the hose, the supporting hose and the solidifying hose are simultaneously carried out, and the inner wall of the pipeline passing through the pipeline wall repairing device is repaired;

(6) and when the pipeline wall repairing device reaches the vicinity of the second wellhead, the traction structure and the pipeline wall repairing device are taken out by the second wellhead.

Technical Field

The invention relates to the technical field of pipeline repair, in particular to a hose supporting structure, a pipeline inner wall repair device and a pipeline inner wall repair method.

Background

Municipal pipelines are one of important projects of urban infrastructure, wherein drainage pipelines are mainly used for collecting and discharging domestic sewage, industrial wastewater and rainwater in time so as to ensure the environmental sanitation of cities and the life and property safety of people. The drainage pipeline is generally made of concrete, metal or plastic, and is corroded by internal sewage or bitten by animals, and after the drainage pipeline runs for a period of time, the surface of the inner wall of the pipeline is likely to be structurally stripped, so that the pipeline wall becomes thin or even partially collapses, the pipeline is blocked and leaks, the urban environmental sanitation is seriously affected, and the life and property safety is threatened. Therefore, the drainage pipeline needs to be inspected regularly or as needed, and the drainage pipeline is overhauled in time when defects are found. Other utility pipes, such as water supply pipes, gas pipes, heat pipes, etc., have internal walls that are more or less worn after a period of operation.

Because there are many structures on the urban ground usually, generally adopt the non-excavation technology to repair the municipal pipeline thus avoid causing the influence to people's daily life, ultraviolet light solidification CIPP repairs the technology to be common non-excavation pipeline at present, its principle is to make the flexible pipe soaked with resin closely laminate with the pipeline inner wall to be repaired through the way of blowing up at first, then utilize the characteristic that the resin meets the ultraviolet curing in the flexible pipe, put the ultraviolet lamp into the air-filled flexible pipe and make the flexible pipe solidify, cling to the pipeline inner wall to be repaired, form a layer of hard "tube-in-tube" structure, thus make the underground pipeline damaged or lost the transport function get the repair in situ. In the method, the operation of placing the ultraviolet lamp into the hose is required to be rapid, otherwise, the hose is easy to collapse, so that the ultraviolet lamp cannot be placed into the hose, and the requirement on the operation experience of workers is high.

Content of application

A first object of the present invention is to provide a hose supporting structure which can be suitably used for hose supporting work in the case of repairing an inner wall of a damaged pipe.

The second purpose of the invention is to provide a pipeline inner wall repairing device, which is characterized in that a supporting hose and a curing hose are carried out simultaneously, the construction process is smooth, no clamping stagnation exists, and the construction efficiency is high.

The third purpose of the invention is to provide a pipeline inner wall repairing method which is convenient to operate and saves manpower.

The embodiment of the invention is realized by the following technical scheme:

a hose supporting structure comprises a main shaft and a plurality of supporting arms extending along the radial direction of the main shaft, wherein the tail end of each supporting arm is provided with a supporting head, the supporting arms are divided into two groups along the axial direction of the main shaft, each group of supporting arms are uniformly distributed at intervals along the circumferential direction of the main shaft, and the distribution positions of the two groups of supporting arms are staggered; the main shaft is hollow structure, and the support arm is including the first section arm and the second section arm that all are the tube-shape, first section arm first end and main shaft through connection, and the sealed slip of second section arm first end is inserted and is located first section arm second end, second section arm second end and support first fixed connection, and the pipeline is aerifyd in the main shaft connection.

The supporting head comprises a supporting plate, an expansion piece and an expansion piece mounting plate, the supporting plate is of a hollow structure, the inner side of the supporting plate is in through connection with the second section arm, an air vent is formed in the outer side of the supporting plate, the expansion piece mounting plate is provided with a plurality of mounting plate holes opposite to the air vent, and the expansion piece is tightly sealed and pressed to the outer side of the supporting plate by the expansion piece mounting plate, so that the expansion piece in the mounting plate hole can be expanded to be in an air bag shape.

Furthermore, the support heads are in an arc shape matched with the curvature of the inner wall of the pipeline, the number of each group of support arms is 4, and the arc length of each support head is 1/8-1/4 of the perimeter of the hose.

Further, the expansion sheet mounting plate comprises four corner plates which can be enclosed to form a frame, the corner plates are L-shaped, one ends of the corner plates are in sealing fit with the side faces of the supporting plate, the other ends of the corner plates press the edges of the expansion sheets to be in sealing fit with the supporting plate, hard pressing strips are connected between a pair of longer corner plates, the pressing strips press the expansion sheets on the lower portions of the pressing strips to be in sealing fit with the supporting plate, and mounting plate holes are formed between the corner plates and the pressing strips and between the pressing strips.

A device for repairing the inner wall of a pipeline comprises the hose supporting structure, and a hose heating structure is fixedly connected to one side of a supporting plate.

Further, the hose heating structure comprises a connecting plate fixedly connected with the supporting plate, and a flame gun or an electric heating wire is installed on the outer side of the connecting plate.

Further, the main shaft end is provided with guide structure, guide structure includes universal wheel and installation pole, installation pole quantity is three, the installation pole includes first section pole and second section pole, first section pole first end just follows the main shaft and radially extends with main shaft fixed connection, the even interval distribution of circumference along the main shaft of first section pole, second section pole first end is articulated with first section pole second end, second section pole second end and universal wheel fixed connection, first section pole, be connected with compression spring between the second section pole, the second section pole struts the inner wall laminating that the rear universal wheel can with the hose.

Further, pipeline inner wall prosthetic devices still includes pulls the structure, pulls the structure and includes haulage rope, wiring post and gear motor, and the wiring post is rotatory by gear motor drive, haulage rope first end fixed connection in wiring post, haulage rope second end and main shaft fixed connection.

Furthermore, the three second section rods are sleeved through shearable rubber bands to enable the installation rods to be in a folding and accommodating shape.

A pipeline inner wall repairing method adopts the pipeline wall repairing device and comprises the following steps:

(1) the pipeline to be repaired is positioned between the first wellhead and the second wellhead, a hose is put into the pipeline through the first wellhead, and the hose is laid flat and extended to the second wellhead;

(2) the pipeline inner wall repairing device is placed into the first wellhead, the pipeline inner wall repairing device is in an initial state that the second section arms are inserted into the first section arms to the maximum extent, the three second section rods are sleeved to form a folded state, the outer diameter of the pipeline inner wall repairing device is minimum, and the pipeline inner wall repairing device can be placed into the hose only by slightly opening the end parts of the hose;

(3) loosening the lantern ring to enable the connecting rod to be in a stretched state, and elastically sending the universal wheels to be in contact with the inner wall of the pipeline;

(4) the main shaft is inflated through the inflation pipeline, air flows through the first section of arm, the second section of arm, the supporting plate, the vent hole and the mounting plate hole, the second section of arm is pushed outwards to enable the supporting arm to be lengthened, and meanwhile, the expansion sheet is inflated to protrude outwards from the mounting plate hole to form an air bag;

(5) stopping inflating after the air bag is contacted with the inner wall of the hose, connecting the traction rope with the main shaft, driving the rope winding column to rotate by the speed reducing motor so as to pull the pipeline wall repairing device to move in the hose, starting the hose heating structure to heat and solidify the hose, simultaneously carrying out the supporting of the hose and the solidification of the hose, and repairing the inner wall of the pipeline passing by the pipeline wall repairing device;

(6) and when the pipeline wall repairing device reaches the position near the second wellhead, the traction rope is taken down, and the traction structure and the pipeline wall repairing device are taken out by the second wellhead.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:

(1) the hose supporting structure is mainly used for repairing the inner wall of a pipeline, a hose is placed in the pipeline to be repaired, the hose supporting structure is inflated to a main shaft after entering the hose, a second section of arm extends out of a first section of arm, and a support arm is integrally increased to push a support head outwards, so that the support head is pressed against the inner wall of the hose to play a role in supporting the hose. In order to solve the problems, the support head is internally provided with the expansion sheet which can be inflated to form an air bag, and when the hose support structure moves forwards and meets the bulge part of the inner wall of the pipeline, the air bag-shaped expansion sheet can be extruded and deformed, so that the hose support structure can smoothly pass through obstacles to avoid the clamping stagnation phenomenon. Simultaneously, when the pipeline inner wall has the depressed part, the bloated piece can also outwards expand to a certain extent to guarantee that this department hose and pipeline closely laminate in this department, reach the purpose that supports the hose comprehensively, make hose and the pipeline of waiting to restore fully laminate.

(2) In addition to the beneficial effects of the above (1), the pipe inner wall repairing device integrates the hose heating structure and the hose supporting structure together, so that the hose supporting and the hose curing are carried out simultaneously, the pipe inner wall passing through the pipe wall repairing device is repaired, the process is simple, and the operation is convenient.

(3) The method for repairing the inner wall of the pipeline has the advantages that the method has large wellhead space and is convenient for operation in a well, and meanwhile, the traction structure is used for driving the pipeline inner wall repairing device to move, so that labor is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a hose support structure according to embodiment 1 of the present invention, in which dotted lines are omitted drawings of the same structures as those of a support arm and a support head;

fig. 2 is a schematic view of an airbag formed after an expansion sheet is inflated in a support head of the hose support structure provided in example 1 of the present invention;

FIG. 3 is a schematic view of an installation structure of an expansion piece in the hose support structure according to embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of a pipeline inner wall repair device provided in embodiment 2 of the present invention, wherein the hose support structure is omitted from illustration, and refer to fig. 1 and 2 in particular;

FIG. 5 is a schematic structural diagram of a hose heating structure and a support head of a pipeline inner wall repair device provided in example 2 of the present invention;

FIG. 6 is a schematic diagram illustrating the construction operation of a pipe inner wall repair method according to embodiment 3 of the present invention;

icon: 100-hose support structure, 110-main shaft, 120-support arm, 121-first section arm, 122-second section arm, 130-support head, 131-support plate, 1311-vent hole, 132-expansion sheet, 133-expansion sheet mounting plate, 1331-mounting plate hole, 1332-angle plate, 1333-pressing bar, 200-hose heating structure, 210-connecting plate, 220-heating wire, 300-guide structure, 310-universal wheel, 320-mounting rod, 321-first section rod, 322-second section rod, 323-compression spring, 400-traction structure, 410-traction rope, 420-rope winding column, 430-speed reducing motor, 510-first well head, 520-second well head, 530-hose and 540-pipeline.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 and fig. 2, the present embodiment provides a hose supporting structure 100, which includes a main shaft 110 and a plurality of supporting arms 120 extending along a radial direction of the main shaft 110, wherein a supporting head 130 is disposed at a distal end of each supporting arm 120, the supporting arms 120 are divided into two groups along an axial direction of the main shaft 110, each group of supporting arms 120 is uniformly spaced along a circumferential direction of the main shaft 110, and distribution positions of the two groups of supporting arms 120 are staggered; the main shaft 110 is a hollow structure, the support arm 120 includes a first section arm 121 and a second section arm 122 both in a cylindrical shape, a first end of the first section arm 121 is connected with the main shaft 110 in a through manner, a first end of the second section arm 122 is inserted into a second end of the first section arm 121 in a sealing and sliding manner, a second end of the second section arm 122 is fixedly connected with the support head 130, and the main shaft 110 is connected with an inflation pipeline. According to the hose supporting structure 100, as the first section arm 121 is connected with the second section arm 122 in a sliding manner, when the spindle 110 is not ventilated, the first section arm 121 can be partially accommodated in the second section arm 122, meanwhile, the supporting head 130 is drawn close to the spindle 110, the two groups of supporting arms 120 are staggered to avoid mutual interference when the supporting head 130 is drawn close to the spindle 110, the overall outer diameter of the hose supporting structure 100 in an initial state is smaller, at the moment, the hose 530 can be placed into the hose 530 by slightly expanding the hose 530, the hose supporting structure 100 is inflated to the spindle 110 after entering the hose 530, the second section arm 122 extends out from the first section arm 121, the supporting head 130 is integrally extended outwards, and the supporting head 130 presses the inner wall of the hose 530 to support the hose 530.

Because the flexible tube 530 and the tube are both in a tubular structure, in order to make the abutting surface of the flexible tube 530 and the tube larger during supporting, the supporting head 130 is in a circular arc shape matching with the curvature of the inner wall of the tube, in order to avoid mutual interference between the supporting heads 130 of the flexible tube supporting structure 100 in the initial state, in this embodiment, the number of each group of supporting arms 120 is 4, and the arc length of each supporting head 130 is between 1/8 and 1/4 of the perimeter of the flexible tube 530.

Hose bearing structure 100 mainly used pipe inner wall is restoreed in this embodiment, places hose 530 in waiting to restoreing the pipeline, and when hose bearing structure 100 need move ahead after one section pipeline is restoreed, because there may be the bellying in the pipe inner wall, if hose bearing structure 100 is whole to be the rigidity, then very easily produces the jamming phenomenon and leads to hose bearing structure 100 can't move ahead when meetting the arch of pipe inner wall. In this embodiment, in order to solve the above problem, the support head 130 is designed to include a support plate 131, an expansion sheet 132 and an expansion sheet mounting plate 133, the support plate 131 is of a hollow structure, the inner side of the support plate 131 is connected to the second-stage arm 122 in a penetrating manner, a vent hole 1311 is formed in the outer side of the support plate 131, the expansion sheet mounting plate 133 is provided with a plurality of mounting plate holes 1331 opposite to the vent hole 1311, and the expansion sheet 132 is tightly sealed and pressed to the outer side of the support plate 131 by the expansion sheet mounting plate 133, so that the expansion sheet 132 in the mounting plate holes 1331 can be inflated to be. In this embodiment, the specific installation manner of the expansion sheet 132 is as shown in fig. 3, the expansion sheet installation plate 133 includes four corner plates 1332 capable of enclosing to form a frame shape, the corner plates 1332 are L-shaped, one end of each corner plate 1332 is in sealing fit with a side of the support plate 131, the other end of each corner plate 1332 presses the edge of the expansion sheet 132 to be in sealing fit with the support plate 131, a hard pressing strip 1333 is connected between a pair of longer corner plates 1332, the pressing strip 1333 presses the expansion sheet 132 at the lower part thereof to be in sealing fit with the support plate 131, and an installation plate hole 1331 is formed between each corner plate 1332 and the pressing strip 1333 between the pressing strip 1333. The expansion sheet 132 is of a single sheet type, the expansion sheet 132 after being blown is divided into a plurality of air bags by the pressing strip 1333, the assembly is simple, the sealing performance of the structure is improved, and the replacement is convenient when the breakage occurs.

When the main shaft 110 is inflated, the support arm 120 is longest and the expansion piece 132 is inflated to be in the shape of an air bag, the hose support structure 100 is in a support state, and at this time, the outer diameter of the whole support structure is the largest, it should be noted that the outer diameter of the whole hose support structure 100 in the support state should be matched with the pipe diameter of the hose 530, that is, the air bag-shaped expansion piece 132 is just abutted to the inner wall of the hose 530 in the support state. In the supporting state, the air supply to the main shaft 110 is stopped, and the supporting state is maintained by preventing the gas in the hose supporting structure 100 from being lost by means of installing a valve on the main shaft 110 or the air supply pipe.

With the above structure, when the hose supporting structure 100 moves forward to meet the convex portion of the inner wall of the pipe, the air-bag-shaped expansion piece 132 can be extruded and deformed, so that the hose supporting structure 100 can smoothly pass through the obstacle to avoid the occurrence of the clamping stagnation. Meanwhile, when the inner wall of the pipeline has a concave part, the expansion sheet 132 can also expand outwards to a certain extent under the inflation condition, so that the hose 530 and the pipeline are tightly attached to each other at the position, and the purpose of comprehensively supporting the hose 530 is achieved.

The hose 530 in this embodiment is: the non-woven fabric lining pipe or the glass fiber is coated with a polymer coating (PU or PE) on the outer layer, the non-woven fabric lining pipe or the glass fiber is wholly soaked in polyester resin or epoxy resin, the polyester resin or the epoxy resin is thermosetting resin, and the outer diameter of the hose 530 is matched with the inner diameter of the pipeline to be repaired. When the hose support structure 100 in this embodiment is used for repairing the inner wall of a pipeline, it only plays a role of supporting the hose 530, and can be matched with a flame gun, an electric heater, and a nail gun to heat and cure the hose 530 to form a "tube-in-tube", or to attach the hose 530 to the pipeline in a pin manner, thereby repairing the inner wall of the pipeline.

Embodiment 2, this embodiment discloses a pipeline inner wall repair device, which includes the hose supporting structure 100 shown in embodiment 1, as shown in fig. 4 and 5, a hose heating structure 200 is fixedly connected to one side of the supporting plate 131. The material of the hose 530 in this embodiment is the same as that in embodiment 1. The hose heating structure 200 includes a connection plate 210 fixedly connected to the support plate 131, and heating wires 220 are installed at the outer side of the connection plate 210. Of course, in other embodiments of the present invention, the heating wire 220 may be replaced with a flame gun. The hose heating structure 200 is integrated with the hose support structure 100, so that the hose 530 can be cured while the hose 530 is supported, and the hose heating structure is simple in process and convenient to operate. The inner wall device of the pipeline not only can be applied to a drainage pipeline, but also is applicable to repair engineering of municipal pipelines such as water supply pipelines, gas pipelines and heating pipelines, and before construction, water and hazardous gas in the pipeline need to be removed firstly so as to ensure safe and smooth construction.

Because the hose supporting structure 100 is a similar cylindrical structure with a small length, and may be deviated during the traveling process, so that the hose supporting structure 100 cannot fully support the hose 530, in this embodiment, the guiding structure 300 is disposed at the end of the main shaft 110, the guiding structure 300 includes universal wheels 310 and three mounting rods 320, the number of the mounting rods 320 is three, the mounting rods 320 include first rod sections 321 and second rod sections 322, a first end of the first rod section 321 is fixedly connected with the main shaft 110 and extends along the radial direction of the main shaft 110, the first rod sections 321 are uniformly distributed along the circumferential direction of the main shaft 110 at intervals, a first end of the second rod section 322 is hinged to a second end of the first rod section 321, a second end of the second rod section 322 is fixedly connected with the universal wheels 310, a compression spring 323 is connected between the first rod section 321 and the second rod section 322, when the hose supporting structure 100 is in the initial state, the second rod section 322 is folded and stored without affecting the overall outer, guarantee that hose bearing structure 100 and guide structure 300 all can get into hose 530 smoothly, hose bearing structure 100 and guide structure 300 get into hose 530 the back, second section pole 322 struts, and universal wheel 310 can be laminated with the inner wall of hose 530, and the skew of hose bearing structure 100 can be avoided to three leading wheels along main shaft 110 circumference evenly distributed, guarantees that hose bearing structure 100 supports and targets in place. In order to facilitate the retraction operation of the guide structure 300, the three second rods 322 are sleeved by shearable rubber bands to make the mounting rod 320 in a folding and accommodating shape.

In order to reduce artifical intensity of labour, improve the efficiency of construction, pipeline inner wall prosthetic devices still includes pulls structure 400 in this application, pull structure 400 and include haulage rope 410, wiring post 420 and gear motor 430, wiring post 420 is rotatory by gear motor 430 drive, haulage rope 410 first end fixed connection is in wiring post 420, haulage rope 410 second end and main shaft 110 fixed connection, utilize gear motor 430 drive wiring post 420 to rotate and coil haulage rope 410 to wiring post 420, thereby realize hose bearing structure 100's removal.

Embodiment 3, this embodiment discloses a method for repairing an inner wall of a pipeline, and as shown in fig. 6, the method for repairing an inner wall of a pipeline using the apparatus of embodiment 2 includes the following steps:

(1) the pipeline 410 to be repaired is positioned between the first wellhead 510 and the second wellhead 520, a hose 530 is put into the pipeline 410 through the first wellhead 510, and the hose 530 is flatly laid and extended to the second wellhead 520; the material of the hose 530 in this embodiment is the same as that in embodiment 2.

(2) The pipe inner wall repairing device is placed in the first well mouth 510, the pipe inner wall repairing device is in an initial state that the second section arm 122 is inserted into the first section arm 121 to the maximum extent, the three second section rods 322 are sleeved by rubber bands to be in a folded state, the outer diameter of the pipe inner wall repairing device is minimum, and the pipe wall repairing device can be placed in the hose 530 only by slightly expanding the end part of the hose 530;

(3) the rubber band is cut off to enable the connecting rod to be in a stretching state, and the universal wheel 310 is elastically conveyed to be in contact with the inner wall of the hose 530;

(4) the spindle 110 is inflated through the inflation tube, air flows through the first section arm 121, the second section arm 122, the support plate 131, the vent hole 1311 and the mounting plate hole 1331, the second section arm 122 is pushed outwards to enable the support arm 120 to grow, and meanwhile, the expansion sheet 132 is inflated to protrude outwards from the mounting plate hole 1331 to form an air bag;

(5) stopping inflating after the air bag is contacted with the inner wall of the hose, connecting the traction rope 410 with the main shaft 110, driving the rope winding column 420 to rotate by the speed reducing motor 430 so as to pull the pipeline wall repairing device to move in the hose, starting the hose heating structure 200 to heat and solidify the hose 530, enabling the supporting hose 530 and the repaired pipeline to be carried out simultaneously, and repairing the inner wall of the pipeline 410 where the pipeline wall repairing device passes;

(6) when the pipeline wall rehabilitation apparatus reaches the vicinity of the second wellhead 520, the pipeline wall rehabilitation apparatus and the pull structure 400 are removed by the second wellhead 520.

The method for repairing the inner wall of the pipeline has the advantages that the hose 530 does not need to be continuously inflated, the operation is simple, the hose 530 is supported and the pipeline 410 is repaired at the same time, the construction process is smooth and free of clamping stagnation, the construction efficiency is high, and the method is particularly suitable for drainage pipelines with inspection wells and other municipal pipelines.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.