CN219282756U - Supporting device for repairing pipeline - Google Patents

Abstract

The utility model provides a support device for pipeline repair, comprising: a lower support assembly for supporting the inner wall of the pipe downward; an upper support assembly for supporting the inner wall of the pipe upward; the lower supporting component and the upper supporting component are hinged with the connecting seat; the two ends of the jacking hydraulic cylinder are respectively hinged with the lower supporting component and the upper supporting component; the hydraulic driving part is connected with the jacking hydraulic cylinder through a high-pressure oil pipe, and due to the fact that the jacking hydraulic cylinder can radially jack up along a pipeline, hydraulic driving force can directly push against the inner wall of the pipeline through the jacking hydraulic cylinder, transmission by utilizing a lever principle in the prior art is not needed, and hydraulic driving force lost due to conversion is reduced.

Description

Supporting device for repairing pipeline

Technical Field

The utility model relates to the technical field of non-excavation operation of municipal pipelines, in particular to a supporting device for pipeline repair.

Background

Underground pipelines for storage towns can be broadly divided into two categories, gravity pipelines and pressure pipelines. The gravity pipeline mainly refers to a pipeline in which fluid in the pipeline flows by gravity, and mainly comprises a sewage pipeline, a rainwater pipeline and the like. The pressure pipeline mainly refers to a pipeline in which fluid in the pipeline moves under the action of the pressure in the pipeline, and mainly comprises a town water supply pipeline, a gas pipeline and the like. After 80 s of the last century, plastic drainage pipelines are widely applied to domestic drainage pipelines due to the obvious advantages of clear weight, corrosion resistance, easy installation, small water flow resistance and the like, but in recent years, serious structural defects such as deformation, collapse and the like are found in areas with poor geological conditions, weak stratum and coastal areas, and the pipelines are buried soon. The defects of the plastic drainage pipeline are mainly expressed as V-shaped sinking deformation, so that the overflow area of the existing pipeline is seriously reduced, and the sewage collection of the sewage pipeline is influenced. The main reasons for the defects are poor quality of pipes, insufficient backfill compactness in pipe construction and overlarge road load.

The trenchless pipeline repairing technology has a development process of nearly 40 years abroad, has the advantages of low comprehensive cost, good construction safety, short construction period, no influence on traffic, small environmental influence and the like, and can realize the purpose of repairing the underground pipeline on the premise of not influencing urban environment. Fig. 1 and 2 are examples of a pipe inner rounding device in the prior art, which is mainly applied to non-excavation repair construction of an underground sewage pipe and mainly aims at local collapse deformation of the pipe. In pipeline restoration engineering, if the collapse deformation of a small-caliber pipeline is needed to be restored, the body of a person cannot enter the small-caliber pipeline, and the pipeline replacement construction is performed on the road surface, so that the engineering cost is greatly increased, the time and labor are wasted in the road surface excavation construction, the construction period is long, and meanwhile, the influence on road traffic is large. The pipeline internal rounding device can well solve the problems. The working principle is that the hydraulic cylinder is arranged along the axis direction of the pipeline, and when the hydraulic cylinder is pushed out forwards, the two levers are driven to support the inner wall of the pipeline upwards and downwards respectively. However, the problem of low conversion efficiency when the hydraulic cylinder thrust converts vertical supporting force exists in the rounding device, and the transmission structure is complex and is easy to be blocked and lose efficacy by sundries in a pipeline.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art. In order to achieve the above object, the technical solution of the present utility model provides a support device for repairing a pipe, including:

a lower support assembly for supporting the inner wall of the pipe downward; an upper support assembly for supporting the inner wall of the pipe upward; the lower supporting component and the upper supporting component are hinged with the connecting seat;

the two ends of the jacking hydraulic cylinder are respectively hinged with the lower supporting component and the upper supporting component, and the jacking hydraulic cylinder can radially jack along a pipeline;

and the hydraulic driving part is connected with the jacking hydraulic cylinder through a high-pressure oil pipe.

Preferably, the method further comprises:

and the control system is communicated with the hydraulic driving part in an electric signal or wireless communication manner and can control the starting and stopping of the hydraulic driving part.

Preferably, the lower support assembly further comprises:

the lower arc plate is fixedly connected with the lower connecting arm, the radian of the lower arc plate is matched with the shape of the inner wall of the pipeline, and the lower connecting arm is hinged with the connecting seat;

the upper support assembly and the lower support assembly are structurally identical, and are symmetrically distributed relative to the central line of the support device for repairing the pipeline.

Preferably, the method further comprises:

and the two ends of the resetting hydraulic cylinder are respectively hinged with the lower supporting component and the upper supporting component, and the resetting hydraulic cylinder is used for providing resetting tension when the supporting device for repairing the pipeline is folded. The reset hydraulic cylinder comprises a rod cavity and a rodless cavity, wherein the rod cavity is connected to the hydraulic driving part through a high-pressure oil pipe.

Preferably, the method further comprises:

the monitoring camera is arranged on the connecting seat and can transmit video signals to the control system.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a schematic view of a prior art in-tube rounding device in a closed state;

FIG. 2 shows a schematic view of a prior art in-tube rounding device in a propped-up state;

fig. 3 shows a schematic view of the support device for repairing a pipe of the present embodiment in a closed state;

fig. 4 shows a schematic view of the support device for repairing a pipe of the present embodiment in a supported state;

fig. 5 shows another schematic view from the perspective of the support device for repairing a pipe of the present embodiment in the supported state.

The correspondence between the marks and the structures in fig. 1 to 5 is as follows:

10: lower support assembly, 11: lower arc plate, 12: lower link arm, 20: upper support assembly, 21: upper arc plate, 22: upper link arm, 30: connecting seat, 40: resetting the hydraulic cylinder, 41: rodless cavity port, 42: rod chamber port, 50: jacking hydraulic cylinder, 51: cylinder block, 52: inner cavity, a: jacking direction of supporting device in prior art, F: in the prior art, a supporting device hydraulic cylinder applies force in a direction A1: jacking direction of the supporting device, A1: the jacking hydraulic cylinder force application direction of the supporting device.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

Some embodiments according to the present utility model are described below with reference to fig. 1 to 5.

Example 1

The present embodiment proposes a support device for pipe repair, which can be used to repair defects including, but not limited to, pipe V-shaped invaginations. For example, it is found that serious V-shaped deformation occurs in a main road DN500 corrugated pipe drainage pipeline of a commercial area in a coastal city, the pipeline is locally broken, surrounding sediment enters the interior of the pipeline to make sewage pass through effectively, and upstream sewage overflows from an inspection well. The pipeline to be repaired is heavy in traffic and has great excavation repair influence, so that the pipeline to be repaired is to be repaired by adopting a non-excavation repair process. The existing non-excavation repair process needs to rely on the original pipeline shape to form a lining, and the engineering pipeline is seriously deformed and collapsed and basically loses the original shape, so that the deformed and collapsed part is required to be pretreated before the non-excavation repair process is adopted.

The present embodiment proposes a support device for repairing a pipeline for treating the collapsed pipe section, referring to fig. 3 to 5, wherein the support device for repairing a pipeline has a support state and a contracted state. In the supported state, the lower support assembly 10 for supporting the inner wall of the pipe downward; an upper support assembly 20 for supporting the inner wall of the pipe upward; the lower support assembly 10 and the upper support assembly 20 are both hinged with the connecting seat 30; the two ends of the jacking hydraulic cylinder 50 are respectively hinged with the lower support assembly 10 and the upper support assembly 20, and the jacking hydraulic cylinder 50 can be jacked along the radial direction of the pipeline; and a hydraulic drive unit connected to the lift cylinder 50 through a high-pressure oil pipe.

When repairing deformed or collapsed plastic pipes, the method may comprise the steps of:

step 1, cleaning a deformed or collapsed plastic pipeline; if necessary, soil excavation is needed to be carried out on the collapse part;

step 2, digging soil body, taking 300mm as a feeding rule, immediately supporting after digging a feeding rule, introducing the supporting device through an upstream inspection well, introducing the supporting device into a deformation or collapse area of the deformed or collapsed plastic pipeline, and adjusting the position of the repairing device to enable the upper supporting component and the lower supporting component to be positioned right below the deformation or collapse area of the deformed or collapsed plastic pipeline;

step 3, an operator inputs a command to the controller, and starts a driver to drive the jacking hydraulic cylinder 50, so that the upper and lower support assemblies jack up the deformed or collapsed plastic pipeline, and the plastic pipeline is restored to the original state; the driver drives the upper and lower support assemblies to shrink so as to separate the upper and lower support assemblies from the plastic pipeline; after the lining of the pipe is finished, the next footage digging treatment can be carried out, and the process is repeated until the whole deformation part is dug, and after the lining of the pipe in the original shape is restored, the gap outside the lining of the pipe is filled with cement slurry, and sundries inside the pipe and overflowed cement are cleaned;

and 4, after the construction is finished, taking the repairing device out of the plastic pipeline by pulling the rope.

When the output end of the jacking hydraulic cylinder 50 is jacked upwards, the upper supporting component 20 is carried to move along the output direction, the hinging positions of the upper supporting component and the lower supporting component relative to the jacking hydraulic cylinder 50 and the connecting seat 30 are correspondingly rotated, meanwhile, the upper supporting component and the lower supporting component are expanded in the direction away from the jacking hydraulic cylinder 50, the jacking hydraulic cylinder 50 in the state is in a supporting state, the pipe wall of the pipeline is attached to the jacking hydraulic cylinder 50 in the state, and therefore the circle supporting work is completed, and conditions are created for the detection and repair work of the subsequent pipeline. When the output end of the jacking hydraulic cylinder 50 moves along the direction opposite to the output direction with the jacking hydraulic cylinder 50, the upper and lower support assemblies are contracted towards the jacking hydraulic cylinder 50, the upper and lower support assemblies are in a contracted state, the contracted state enables the general outline of the pipeline rounding device to be smaller, the pipeline rounding device is enabled to move in a smaller pipeline, and therefore workers can conveniently operate the pipeline rounding device.

Because the structure that the jacking hydraulic cylinder 50 can radially jack up along the pipeline is adopted in the embodiment, the hydraulic driving force directly abuts against the inner wall of the pipeline through the jacking hydraulic cylinder 50, and the transmission by utilizing the lever principle in the prior art is not needed, so that the hydraulic driving force lost due to conversion is reduced.

In this embodiment, the foregoing supporting device is used to perform non-excavation repair on a small-caliber pipeline with deformation and collapse defects, so that the water passing capability of the original pipeline is recovered, and meanwhile, the structural strength of the pipeline is enhanced. And (3) performing a water closing test and detecting the mechanical properties of the lining material during engineering acceptance, wherein the acceptance is qualified. The method is completely carried out in a non-excavation mode in engineering construction, the construction period is short, the influence on traffic and society is small, the comprehensive construction cost has obvious advantages compared with a pipeline excavation and replacement mode, and approval of a management unit is obtained, so that the repair method is popularized and applied in the repair engineering of similar defective pipelines below local DN 800.

Example 2

This embodiment includes, in addition to the features of the foregoing embodiments,: a control system (not shown in the drawings) in electrical or wireless communication with the hydraulic drive unit and capable of controlling the start and stop of the hydraulic drive unit. The controller is internally provided with a driver, the driver is connected with the jacking hydraulic cylinder 50 through a high-pressure oil pipe, and the driver is used for driving the jacking hydraulic cylinder 50 to jack up the deformed or collapsed plastic pipeline by the jacking hydraulic cylinder 50 so as to restore the deformed or collapsed plastic pipeline. In this embodiment, the driver is a hydraulic station.

Example 3

In addition to including the features of the previous embodiments, the lower support assembly 10 includes: the lower arc plate 11 and the lower connecting arm 12 are fixedly connected, and an obtuse angle is formed between the lower arc plate 11 and the lower connecting arm 12, so that in the folded state, the lower arc plate 11 is more against the jacking hydraulic cylinder 50, and in the supporting state, the lower arc plate 11 is basically completely attached to the inner wall of the pipeline. The radian of the lower arc plate 11 is adapted to the shape of the inner wall of the pipeline, and the lower connecting arm 12 is hinged with the connecting seat 30; the upper support assembly 20 is structurally identical to the lower support assembly 10, and the upper support assembly 20 and the lower support assembly 10 are symmetrically distributed with respect to a center line of the support device for pipe repair.

Example 4

This embodiment includes, in addition to the features of the foregoing embodiments,: and a restoring hydraulic cylinder 40 having both ends respectively hinged with the lower support assembly 10 and the upper support assembly 20 for providing restoring tension when the support device for pipe repair is folded.

The jack-up cylinder 50 may be a single-acting cylinder, i.e., a piston cylinder having a piston column on one side of a piston and capable of supplying pressure oil to only one side of the piston. The piston is only one-way to be a working stroke, and the return stroke is to make use of the dead weight or load to push the piston back. In this embodiment, the jacking cylinder 50 does not require frequent, rapid and repeated extension or retraction of the piston rod during operation, but has a high requirement for jacking capacity, so that the single-acting cylinder is selected to output more jacking force under the condition of the same cylinder diameter.

To assist the support device in moving from the support state to the collapsed state, a return hydraulic cylinder 40 may be added, comprising a rod chamber and a rodless chamber, wherein the rod chamber is connected to the hydraulic drive through a high pressure oil line. The return cylinder 40 is also a single-acting cylinder, and only when the supporting device needs to be folded, high-pressure hydraulic oil is arranged in the rod cavity, so that the upper supporting component and the lower supporting component are pulled inwards to shrink towards the jacking cylinder 50. The return hydraulic cylinder 40 is connected at both ends to the lower connecting arm 12 and the upper connecting arm 22, respectively. During the jacking of the jacking hydraulic cylinder 50, the piston rod of the resetting hydraulic cylinder 40 passively moves to be pulled out of the cylinder body, but when the hydraulic cylinder is folded, the rod cavity of the resetting hydraulic cylinder 40 enters a high-pressure hydraulic medium to execute folding action.

Example 5

This embodiment includes, in addition to the features of the foregoing embodiments,:

a monitoring camera mounted on the connection base 30 and capable of transmitting video signals to the control system.

For changing the condition that can provide the plastic pipe for operating personnel in, advance for prosthetic devices and change, the operating personnel of being convenient for accurately carry prosthetic devices to deformation or subside the region to adjust prosthetic devices's jack-up structure's position, accurate judgement plastic pipe's restoration degree, prosthetic devices still includes the surveillance camera head (not shown) of installing on connecting seat 30, and is equipped with display screen (not shown) on the control system, and the display screen is used for showing the deformation or subside the image of plastic pipe that the surveillance camera head shot.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A support device for pipe repair, comprising:

a lower support assembly (10) for supporting the inner wall of the pipe downward; an upper support assembly (20) for supporting the inner wall of the pipe upward; the lower supporting component (10) and the upper supporting component (20) are both hinged with the connecting seat (30);

the two ends of the jacking hydraulic cylinder (50) are respectively hinged with the lower supporting component (10) and the upper supporting component (20), and the jacking hydraulic cylinder (50) can radially jack along a pipeline;

and a hydraulic drive unit connected to the lifting hydraulic cylinder (50) via a high-pressure oil pipe.

2. The support device for pipe repair of claim 1, further comprising:

and the control system is communicated with the hydraulic driving part in an electric signal or wireless communication manner and can control the starting and stopping of the hydraulic driving part.

3. The support device for pipe repair according to claim 1, wherein the lower support assembly (10) further comprises:

the arc-shaped connecting device comprises a lower arc plate (11) and a lower connecting arm (12) which are fixedly connected, wherein the radian of the lower arc plate (11) is matched with the shape of the inner wall of a pipeline, and the lower connecting arm (12) is hinged with a connecting seat (30);

the upper support assembly (20) and the lower support assembly (10) are identical in structure, and the upper support assembly (20) and the lower support assembly (10) are symmetrically distributed relative to the central line of the support device for pipeline repair.

4. The support device for pipe repair of claim 1, further comprising:

and the two ends of the resetting hydraulic cylinder (40) are respectively hinged with the lower supporting component (10) and the upper supporting component (20) and are used for providing resetting tension when the supporting device is folded.

5. The support device for pipe repair according to claim 4, wherein the resetting hydraulic cylinder (40) further comprises:

a rod cavity and a rodless cavity, wherein the rod cavity is connected to the hydraulic driving part through a high-pressure oil pipe.

6. The support device for pipe repair of claim 1, further comprising:

and the monitoring camera is arranged on the connecting seat and can transmit video signals to the control system.

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