CN112050024A - Trenchless repair device and repair method for partial complete collapse of double-wall corrugated pipe - Google Patents
Trenchless repair device and repair method for partial complete collapse of double-wall corrugated pipe Download PDFInfo
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- CN112050024A CN112050024A CN202011039935.2A CN202011039935A CN112050024A CN 112050024 A CN112050024 A CN 112050024A CN 202011039935 A CN202011039935 A CN 202011039935A CN 112050024 A CN112050024 A CN 112050024A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
Abstract
The invention relates to the technical field of trenchless repair equipment and repair methods under the working condition of pipeline collapse and deformation, in particular to a trenchless repair device and a repair method for partial complete collapse of a double-wall corrugated pipe; the repairing device comprises a pipeline repairing lock ring supporting device, a repairing lock ring and a collapse propping device; the pipeline repairing lock ring supporting device comprises a left end cover, a right end cover, a repairing driving device and a pushing-away mechanism; the repairing method fully utilizes the inspection well spaces at two ends of the pipeline to be repaired under the trenchless condition, fully props up the completely collapsed pipe section through the collapse propping device, positions the repairing locking ring on the collapsed pipe section through the repairing locking ring supporting device, and is matched with the trenchless traction equipment, so that the local repairing operation of the pipeline under the trenchless condition of the small-caliber double-wall corrugated pipe can be realized; not only saves time and labor, but also does not damage the road surface, has no influence or little influence on ground traffic, and simultaneously avoids the environmental pollution problems of sewage crossflow and dust flying.
Description
Technical Field
The invention relates to the technical field of trenchless repair equipment and repair methods under pipeline collapse and deformation conditions, in particular to a trenchless repair device and a repair method for partial complete collapse of a double-wall corrugated pipe.
Background
In the process of constructing underground drainage pipelines in towns and towns all over the country in the last 15 to 20 years, a large number of double-wall corrugated pipes made of HDPE materials are selected for drainage pipeline construction as main materials of drainage pipelines, and due to excessive price competition in the market, the materials are extremely seriously deteriorated, and in addition, the market supervision is insufficient, a large number of unqualified products are buried underground; along with the increase of the age limit, the soil body changes around the pipeline and leads to pipeline atress environment to change, and structural and functional harmful defects such as collapse, deformation, fracture appear on a large scale in the pipeline to lead to taking place many security incidents and environmental protection pollution incident that lead to because of underground pipe disease to lead to in recent years, if: road collapse, urban inland inundation, inland rivers, lakes, soil and other pollution events.
At present, the existing trenchless pipeline repairing technology in the market is implemented under the working condition that the internal space of the original pipeline is complete, such as: ultraviolet curing repair technology, CIPP hot water in-situ curing method, in-situ thermoplastic forming repair technology and the like. When the pipeline collapses and deforms to cause the inner space of the original pipeline to be incomplete, the pipeline needs to be repaired in advance to completely restore the inner space of the pipeline. For pipelines made of other materials, such as concrete pipelines, clay pipelines and the like, grouting soil can be adopted for solidification, and then strong milling cutter hole reconstruction and other methods are adopted for treatment, but the double-wall corrugated pipe cannot be cut by a milling cutter due to the fact that the double-wall corrugated pipe is large in material toughness, and therefore the problem acknowledged by the trenchless pipeline repairing industry is solved.
The small-caliber double-wall corrugated pipe refers to double-wall corrugated pipes with pipe diameters of DN200 mm-DN 600mm and steel strip reinforced double-wall corrugated pipes, and when the pipeline needs to be repaired under the working condition that the local collapse deformation amplitude exceeds 50%, the pipeline can only be repaired by adopting a local excavation mode, so that the repair is troublesome and laborious, and the damage to the road surface is large. Therefore, a local repair device and a method capable of realizing the complete collapse of the pipeline in a non-excavation mode are urgently needed.
Disclosure of Invention
The invention provides a non-excavation repairing device and a repairing method for partial complete collapse of a double-wall corrugated pipe, overcomes the defects of the prior art, and can effectively solve the problems that under the working condition that the partial collapse deformation amplitude of the small-caliber double-wall corrugated pipe exceeds 50%, only a partial excavation mode can be adopted, which is time-consuming and labor-consuming, and has large damage to a road surface.
One of the technical schemes of the invention is realized by the following measures: a non-excavation repairing device for partial and complete collapse of a double-wall corrugated pipe comprises a pipeline repairing lock ring supporting device, a repairing lock ring and a collapse opening device; the pipeline repairing lock ring supporting device comprises a left end cover, a right end cover, a repairing driving device and a pushing-away mechanism; a repair locking ring is arranged between the left end cover and the right end cover, a repair driving device is fixedly arranged in the repair locking ring, and a push-open mechanism which can open the repair locking ring under the driving action of the repair driving device is arranged between the repair driving device and the repair locking ring; the collapse opening device comprises a lower bottom plate, a driving mechanism, a top supporting plate and a connecting rod, wherein the lower bottom plate is fixed at the bottom of the right side of the right end cover, the driving mechanism capable of upwards opening the top supporting plate is fixed on the lower bottom plate, and the connecting rod is fixedly connected to the right end of the lower bottom plate.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
the repairing driving device comprises a center-penetrating jack, a main shaft, a bearing disc and a force transmission disc; an oil cylinder support is fixed between the left end cover and the right end cover through a support, a center-penetrating jack is fixedly installed in the oil cylinder support, the right end of the main shaft abuts against the right end cover, the left end of the main shaft penetrates through the center-penetrating jack and then extends out of the left end cover, the force bearing disc and the force transmission disc are fixedly installed on the main shaft on the left side and the right side of the center-penetrating jack respectively, the telescopic end of the inner cylinder on the left side of the center-penetrating jack abuts against the force bearing disc, and the force bearing disc and the force transmission disc are connected with a push-away mechanism respectively.
The pushing-away mechanism comprises at least two supporting arc plates which are distributed in a circumferential manner, a first supporting plate hinge seat is fixed on the inner side of the left part of each supporting arc plate, a first moving plate hinge seat corresponding to the first supporting plate hinge seat is fixed on the left side of the bearing disc, and the corresponding first supporting plate hinge seat is hinged with the first moving plate hinge seat through a first connecting rod; and a second support plate hinge seat is fixed on the inner side of the right part of each support arc plate, a second movable plate hinge seat corresponding to the second support plate hinge seat is fixed on the left side of the force transmission disc, and the corresponding second support plate hinge seat is hinged with the second movable plate hinge seat through a second connecting rod.
The right side of the bearing disc is provided with at least one first guide plate extending to the support arc plate at intervals along the circumference, the support arc plate corresponding to the first guide plate is fixed with a first limiting plate, the first limiting plate is a trapezoidal limiting plate with the inner end being high at the left and low at the right, the outer end of the first guide plate corresponding to the position of the first limiting plate is provided with a first opening guide groove, the outer end of the first guide plate is sleeved on the first limiting plate through the first opening guide groove, and the groove bottom surface of the first opening guide groove is abutted to the inclined inner end surface of the first limiting plate; the right side of the force transmission disc is provided with at least one second guide plate extending to the support arc plate at intervals along the circumference, a second limiting plate is fixed on the support arc plate corresponding to the second guide plate from top to bottom, the second limiting plate is a trapezoidal limiting plate with the inner end being high at the left and low at the right, a second opening guide groove is formed in the outer end of the second guide plate corresponding to the second limiting plate, the outer end of the second guide plate is sleeved on the second limiting plate through the second opening guide groove, and the groove bottom surface of the second opening guide groove is abutted to the inclined inner end surface of the second limiting plate.
The top supporting plate is a circular arc-shaped cover plate with a high left and a low right.
The main shaft on the right side of the left end cover is sleeved with a left end plate, and a spring is sleeved on the main shaft between the left end plate and the bearing disc; or a spring is sleeved on the main shaft between the center-penetrating jack and the force transmission disc.
A supporting pipe support is fixed on the right side of the right end cover, the upper left end of the jacking plate is hinged and mounted on the upper right side of the supporting pipe support, and the driving mechanism comprises a driving oil cylinder, a fixing plate and a jacking connecting rod; the driving oil cylinder is horizontally fixed on the lower bottom plate through the fixing plate, an oil cylinder hinging seat is fixed on a telescopic rod of the driving oil cylinder, an upper cover plate hinging seat is fixed on the lower right side of the jacking plate, and a jacking connecting rod is hinged between the oil cylinder hinging seat and the upper cover plate hinging seat.
The lower bottom plate is an arc plate with an upward opening, a closed cavity is formed between the lower bottom plate and the top supporting plate, and the driving oil cylinder and the top supporting connecting rod are arranged in the closed cavity.
A telescopic protective cover is arranged between the top supporting plate and the lower bottom plate, and a front-back telescopic spring is fixedly connected in the telescopic protective cover.
The second technical scheme of the invention is realized by the following measures:
the method comprises the following steps that a non-excavation repairing device with a small-caliber double-wall corrugated pipe partially and completely collapsed is placed into a first inspection well on the left side of a pipeline to be repaired, a quick-connection pull rod or a steel wire rope is connected to a connecting rod at the right end of a collapse expanding device, the other end of the quick-connection pull rod or the steel wire rope is connected with a traction device at a second inspection well on the right side of the pipeline to be repaired, the non-excavation repairing device with the double-wall corrugated pipe partially and completely collapsed is pulled to the initial position of a collapsed pipe section by starting the traction device, a driving oil cylinder is started, a telescopic rod of the driving oil cylinder extends out rightwards, a jacking connecting rod drives a jacking plate to lift; then the driving oil cylinder is driven to retract, and the jacking plate is reset; repeatedly drawing, jacking and resetting until the end position of the completely collapsed pipe section is reached, and gradually completely expanding the pipeline at the collapsed section; and then continuing to pull the repair equipment rightwards, pulling the repair lock ring to the expanded collapse section, starting the penetrating jack, driving the force bearing disc and the force transmission disc to synchronously move leftwards by the penetrating jack, expanding the support arc plates outwards until the support arc plates expand the repair lock ring, self-locking the repair lock ring after the repair lock ring is expanded, stopping the penetrating jack, resetting the force bearing disc and the force transmission disc under the action of respective corresponding springs, synchronously resetting the support arc plates, separating the repair lock ring from the support arc plates, recovering the repair driving device and the collapse expansion device, and completing local repair.
The invention has reasonable and compact structure and convenient use; under the non-excavation condition, the inspection well spaces at two ends of the pipeline to be repaired are fully utilized, the completely collapsed pipe section is fully expanded through the collapse expansion device, the repair lock ring is positioned on the collapsed pipe section through the repair lock ring supporting device, and the pipeline local repair operation of the small-caliber double-wall corrugated pipe under the non-excavation condition can be realized by matching with non-excavation traction equipment; compared with a repair mode of local excavation, the equipment and the method do not need to excavate the road surface greatly, save time and labor, do not damage the road surface, have no influence or little influence on ground traffic, simultaneously avoid safety incidents and the like caused by damage to an original pipeline in an excavation process, and simultaneously can also avoid the problem of environmental pollution caused by transverse flow of sewage and flying of dust due to excavation.
Drawings
Fig. 1 is a schematic front sectional view of a top bracing plate in an unsupported state according to embodiment 1 of the present invention.
Fig. 2 is a schematic sectional view of a top supporting plate in a supporting state according to embodiment 1 of the present invention.
FIG. 3 is a schematic sectional view taken along the line A-A in FIG. 1.
FIG. 4 is an enlarged sectional view taken along line B-B of FIG. 2.
FIG. 5 is a schematic cross-sectional view taken along the direction C-C in FIG. 2.
The codes in the figures are respectively: the device comprises a main shaft 1, a left end cover 2, a supporting arc plate 3, a cylinder support 4, a penetrating jack 5, a second supporting plate hinged seat 6, a second connecting rod 7, a second moving plate hinged seat 8, a second limiting plate 9, a second guiding plate 10, a right end cover 11, a force transmission plate 12, a spring 13, a support 14, a first limiting plate 15, a first guiding plate 16, a force bearing plate 17, a first supporting plate hinged seat 18, a first connecting rod 19, a first moving plate hinged seat 20, a repairing lock ring 21, a left end plate 22, a top supporting plate 23, a lower bottom plate 24, a supporting pipe support 25, a connecting rod 26, a top supporting connecting rod 27, a telescopic protective cover 28, a telescopic spring 29, a cylinder hinged seat 30, an upper cover plate hinged seat 31, a driving cylinder 32 and a fixing plate 33.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.
The invention is further described with reference to the following examples and figures:
example 1: as shown in fig. 1 to 5, the trenchless repairing device with the partially and completely collapsed double-wall corrugated pipe comprises a pipe repairing lock ring supporting device, a repairing lock ring 21 and a collapsing and opening device; the pipeline repairing lock ring supporting device comprises a left end cover 2, a right end cover 11, a repairing driving device and a pushing-away mechanism; a repair locking ring 21 is arranged between the left end cover 2 and the right end cover 11, a repair driving device is fixedly arranged in the repair locking ring 21, and a push-away mechanism which can push the repair locking ring 21 open under the driving action of the repair driving device is arranged between the repair driving device and the repair locking ring 21; the collapse opening device comprises a lower bottom plate 24, a driving mechanism, a top supporting plate 23 and a connecting rod 26, wherein the lower bottom plate 24 is fixed at the bottom of the right side of the right end cover 11, the driving mechanism capable of upwards opening the top supporting plate 23 is fixed on the lower bottom plate 24, and the connecting rod 26 is fixedly connected to the right end of the lower bottom plate 24.
Wherein, the repair lock ring 21 is a common stainless steel repair lock ring known in the art;
when in repair, the space of the inspection wells at the two ends of the pipeline to be repaired is fully utilized, the repair equipment can be placed in the underground pipeline, and the repair equipment can move under the action of the traction device; aiming at the situation that a completely collapsed pipe section exists in the small-caliber double-wall corrugated pipe, the completely collapsed pipe section is fully expanded through a top supporting plate 23 of an expanding device, and then a repairing locking ring 21 is positioned on the completely collapsed pipe section through a pipeline repairing locking ring supporting device, so that the local repairing of the small-caliber double-wall corrugated pipe is realized under the condition that ground excavation is not needed; compared with local large excavation pipe replacement repair, the method is time-saving and labor-saving, does not damage the road surface, has no influence or little influence on ground traffic, and avoids safety incidents and environmental pollution problems caused by locks in the excavation process.
Aiming at the characteristics that the collapse surface of a completely collapsed section with the local collapse deformation amplitude exceeding 50 percent is large and the completely collapsed section is concentrated on the top of the pipeline, the top supporting plate 23 of the adopted collapse expanding device can upwards support the top of the collapsed pipeline under the action of a driving mechanism, so that the completely collapsed section can quickly recover the space in the pipeline; and then, the collapse expanding device is utilized, the repair driving device drives the push-open mechanism to expand the repair locking ring 21 outwards and self-lock the repair locking ring to the completely collapsed pipe section, so that the pipe-in-pipe repair of the completely collapsed pipe section of the small-pipe-diameter double-wall corrugated pipe is realized.
The trenchless repairing device for the partial and complete collapse of the double-wall corrugated pipe can be further optimized or/and improved according to actual needs:
as shown in fig. 1 and 2, the top supporting plate 23 is a circular arc-shaped cover plate with a high left and a low right; the top bracing plate 23 with higher left and lower right is more convenient to be inserted in the completely collapsed section; the double-wall corrugated pipe is a circular pipe with corrugation, so that the arc-shaped supporting plate 23 can be used for enabling the supported pipe inner space to be larger.
As shown in the attached drawings 1 and 2, the repairing driving device comprises a center-penetrating jack 5, a main shaft 1, a force bearing disc 17 and a force transmission disc 12; an oil cylinder support 4 is fixed between the left end cover 2 and the right end cover 11 through a support 14, a penetrating jack 5 is fixedly installed in the oil cylinder support 4, the right end of the spindle 1 abuts against the right end cover 11, the left end of the spindle 1 penetrates through the penetrating jack 5 and then extends out of the left end cover 2, the force bearing disc 17 and the force transmission disc 12 are fixedly installed on the spindles 1 on the left side and the right side of the penetrating jack 5 respectively, the telescopic end of the inner cylinder on the left side of the penetrating jack 5 abuts against the force bearing disc 17, and the force bearing disc 17 and the force transmission disc 12 are connected with a pushing mechanism respectively.
The center-penetrating jack 5 is a device which is well known and commonly used in the prior art, and the starting and stopping of the center-penetrating jack are well known in the prior art; when the repairing device is used, the penetrating jack 5 is driven, the telescopic end of the inner cylinder of the penetrating jack 5 extends leftwards, the force-transmitting disc 12 is driven to move leftwards synchronously by the main shaft 1 while the force-bearing disc 17 is pushed, the pushing-away mechanism is pushed outwards under the action of the pushing force of the left movement of the force-bearing disc 17 and the force-transmitting disc 12 and props up the repairing locking ring 21, the repairing locking ring 21 is self-locked and props up a collapsed pipe section, and the repairing work of the completely collapsed pipe section is completed.
As shown in fig. 1, 2, 3 and 4, the push-away mechanism includes at least two supporting arc plates 3 distributed circumferentially, a first supporting plate hinge seat 18 is fixed on the inner side of the left portion of each supporting arc plate 3, a first moving plate hinge seat 20 corresponding to the first supporting plate hinge seat 18 is fixed on the left side of the force bearing disc 17, and the corresponding first supporting plate hinge seat 18 is hinged to the first moving plate hinge seat 20 through a first connecting rod 19; a second support plate hinge seat 6 is fixed on the inner side of the right part of each support arc plate 3, a second moving plate hinge seat 8 corresponding to the second support plate hinge seat 6 is fixed on the left side of the force transmission disc 12, and the corresponding second support plate hinge seat 6 is hinged to the second moving plate hinge seat 8 through a second connecting rod 7. Under the action of the thrust of the left movement of the bearing disc 17 and the force transmission disc 12, the first connecting rod 19 and the second connecting rod 7 drive the support arc plate 3 to be outwards expanded and support the repair lock ring 21; the self-locking is carried out after the repair lock ring 21 is propped up; on the contrary, the center-penetrating jack 5, the bearing disc 17 and the force transmission disc 12 are reset in sequence, at the moment, the supporting plate 3 loses the supporting force and pushes the bearing disc 17 and the force transmission disc 12 reversely to gradually recover the original position, reverse reset is realized, and the repairing equipment can be taken out from the pipeline conveniently.
As shown in fig. 1, at least one first guide plate 16 extending to the support arc plate 3 is circumferentially arranged on the right side of the bearing disc 17 at intervals, first limit plates 15 are fixed on the support arc plate 3 vertically corresponding to the first guide plate 16, the first limit plates 15 are trapezoidal limit plates with inner ends being high at the left and low at the right, a first opening guide groove is arranged at the outer end of the first guide plate 16 corresponding to the position of the first limit plate 15, the outer end of the first guide plate 16 is sleeved on the first limit plate 15 through the first opening guide groove, and the groove bottom surface of the first opening guide groove is abutted to the inclined inner end surface of the first limit plate 15; at least one second guide plate 10 extending to the supporting arc plate 3 is arranged on the right side of the force transmission disc 12 at intervals along the circumference, a second limiting plate 9 is fixed on the supporting arc plate 3 vertically corresponding to the second guide plate 10, the second limiting plate 9 is a trapezoidal limiting plate with the inner end being high at the left and low at the right, a second opening guide groove is arranged at the outer end of the second guide plate 10 corresponding to the second limiting plate 9, the outer end of the second guide plate 10 is sleeved on the second limiting plate 9 through the second opening guide groove, and the groove bottom surface of the second opening guide groove is abutted to the inclined inner end surface of the second limiting plate 9.
Under the action of the thrust of the left movement of the force bearing disc 17 and the force transmission disc 12, the first guide plate 16 and the second guide plate 10 also move left, but under the guiding and limiting effects of the first limiting plate 15 and the second limiting plate 9, the supporting arc plate 3 can only radially extend and retract, and the supporting arc plate 3 is ensured to be fully stressed and fully coaxially and radially expanded; secondly, form the interior support to the left of supporting backplate 3 between first limiting plate 15 and the first deflector 16 to and form the interior support to the right of supporting backplate 3 between second limiting plate 9 and the second deflector 10, when first deflector 16 and the left shift of second deflector 10, provide continuous supporting role for supporting backplate 3, make the process of opening of supporting arc board 3 more reliable and stable.
As shown in the attached fig. 1 and 2, a left end plate 22 is sleeved on the main shaft 1 on the right side of the left end cover 2, and a spring 13 is sleeved on the main shaft 1 between the left end plate 22 and the bearing disc 17; or, a spring 13 is sleeved on the main shaft 1 between the penetrating jack 5 and the force transmission disc 12. The spring 13 can further improve the resetting reliability of the force bearing disc 17 and the force transmission disc 12, and the trenchless repairing device with the small-diameter double-wall corrugated pipe partially and completely collapsed can be conveniently taken out of the pipeline.
As shown in fig. 1, a supporting tube support 25 is fixed on the right side of the right end cover 11, the upper left end of the top supporting plate 23 is hinged on the upper right side of the supporting tube support 25, and the driving mechanism comprises a driving oil cylinder 32, a fixing plate 33 and a top supporting connecting rod 27; the driving oil cylinder 32 is horizontally fixed on the lower bottom plate 24 through a fixing plate 33, an oil cylinder hinge seat 30 is fixed on a telescopic rod of the driving oil cylinder 32, an upper cover plate hinge seat 31 is fixed on the right lower side of the top supporting plate 23, and a top supporting connecting rod 27 is hinged between the oil cylinder hinge seat 30 and the upper cover plate hinge seat 31.
The driving of the driving oil cylinder 32 is the prior known technology, and an external hydraulic system can be adopted to assist the driving; through the power output of the driving oil cylinder 32, the top bracing connecting rod 27 pushes the top bracing plate 23 to be braced upwards, and the completely collapsed pipe section is fully braced.
As shown in fig. 1 and 2, the lower bottom plate 24 is an arc plate with an upward opening, and a closed cavity is formed between the lower bottom plate and the top supporting plate 23, and the driving oil cylinder 32 and the top supporting connecting rod 27 are arranged in the closed cavity. The top supporting plate 23 and the lower bottom plate 24 can form a closed cavity when being closed, so that dirt in the pipe can be blocked in the advancing process of the pipe, and the opening and closing of the top supporting plate 23 are prevented from being influenced; while protecting the drive cylinder 32.
As shown in fig. 2 and 5, in order to further prevent sludge and the like from falling into the structures such as the driving oil cylinder 32 and the like during the process of expanding the fully collapsed pipe section, a telescopic protective cover 28 is installed between the top supporting plate 23 and the lower bottom plate 24, and a front-back telescopic spring 29 is fixedly connected in the telescopic protective cover 28. After the top supporting plate 23 is opened, the telescopic protective cover 28 is opened to block dirt outside; when the top supporting plate 23 is reset, the contraction spring 29 automatically contracts to retract the front-back telescopic protective cover 28 inwards, and the telescopic protective cover 28 is retracted into the top supporting plate 23 while the top supporting plate 23 is closed.
Example 2: the trenchless repairing method for the partial complete collapse of the double-wall corrugated pipe is carried out according to the following steps: the method comprises the following steps of putting a partial completely-collapsed non-excavation repairing device of the small-caliber double-wall corrugated pipe down into a first inspection well on the left side of a completely-collapsed pipeline to be repaired, connecting a quick-connection pull rod or a steel wire rope to a connecting rod 26 at the right end of a collapse expanding device, connecting the other end of the quick-connection pull rod or the steel wire rope with a traction device at a second inspection well on the right side of the pipeline to be repaired, pulling the partial completely-collapsed non-excavation repairing device of the double-wall corrugated pipe to the initial position of a collapsed pipe section by starting the traction device, starting a driving oil cylinder 32, extending a telescopic rod of the driving oil cylinder 32 rightwards, driving a jacking connecting rod 27 to drive a jacking plate 23 to; then the driving oil cylinder 32 is driven to retract, and the top supporting plate 23 is reset; repeatedly drawing, jacking and resetting until the end position of the completely collapsed pipe section is reached, and gradually completely expanding the pipeline at the collapsed section; and then continuing to pull the repair equipment rightwards, pulling the repair lock ring 21 to the expanded collapse section, starting the penetrating jack 5, driving the force bearing disc 17 and the force transmission disc 12 to synchronously move leftwards by the penetrating jack 5, expanding the support arc plates 3 outwards until the support arc plates 3 expand the repair lock ring 21, self-locking the repair lock ring 21 after expansion, stopping the penetrating jack 5, resetting the force bearing disc 17 and the force transmission disc 12 under the action of the respective corresponding springs 13, synchronously resetting the support arc plates 3, separating the repair lock ring 21 from the support arc plates 3, recovering the repair drive device and the collapse expansion device, and completing local repair.
The traction device adopts the existing conventional traction equipment.
Before the trenchless repairing method is adopted, a high-pressure water cleaning vehicle is used for cleaning sludge sundries in a pipeline; and then detecting the interior of the pipeline by using a pipeline detection robot (CCTV): shooting a video, positioning defects, evaluating the types and the grades of the defects and making a repair scheme.
Under the condition of not needing ground excavation, the inspection well spaces at two ends of the pipeline to be repaired are fully utilized, the completely collapsed pipe section is fully expanded through the collapse expansion device, the repairing locking ring 21 is positioned at the collapsed pipe section through the pipeline repairing locking ring supporting device, and then the repairing locking ring 21 is left at the collapsed pipe section as a replacer of the completely collapsed pipe section.
The above technical features constitute a preferred embodiment of the present invention, which has strong adaptability and better implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (10)
1. A non-excavation repairing device for partial complete collapse of a double-wall corrugated pipe is characterized by comprising a pipeline repairing lock ring supporting device, a repairing lock ring and a collapse opening device; the pipeline repairing lock ring supporting device comprises a left end cover, a right end cover, a repairing driving device and a pushing-away mechanism; a repair locking ring is arranged between the left end cover and the right end cover, a repair driving device is fixedly arranged in the repair locking ring, and a push-open mechanism which can open the repair locking ring under the driving action of the repair driving device is arranged between the repair driving device and the repair locking ring; the collapse opening device comprises a lower bottom plate, a driving mechanism, a top supporting plate and a connecting rod, wherein the lower bottom plate is fixed at the bottom of the right side of the right end cover, the driving mechanism capable of upwards opening the top supporting plate is fixed on the lower bottom plate, and the connecting rod is fixedly connected to the right end of the lower bottom plate.
2. The trenchless rehabilitation device for the partial complete collapse of the double-wall corrugated pipe as claimed in claim 1, wherein the rehabilitation driving device comprises a through jack, a main shaft, a bearing disc and a force transmission disc; an oil cylinder support is fixed between the left end cover and the right end cover through a support, a center-penetrating jack is fixedly installed in the oil cylinder support, the right end of the main shaft abuts against the right end cover, the left end of the main shaft penetrates through the center-penetrating jack and then extends out of the left end cover, the force bearing disc and the force transmission disc are fixedly installed on the main shaft on the left side and the right side of the center-penetrating jack respectively, the telescopic end of the inner cylinder on the left side of the center-penetrating jack abuts against the force bearing disc, and the force bearing disc and the force transmission disc are connected with a push-away mechanism respectively.
3. The trenchless restoration device for the partial complete collapse of the double-wall corrugated pipe according to claim 2, wherein the pushing-away mechanism comprises at least two supporting arc plates distributed circumferentially, a first supporting plate hinge seat is fixed on the inner side of the left part of each supporting arc plate, a first moving plate hinge seat corresponding to the first supporting plate hinge seat is fixed on the left side of the bearing disc, and the corresponding first supporting plate hinge seat is hinged with the first moving plate hinge seat through a first connecting rod; and a second support plate hinge seat is fixed on the inner side of the right part of each support arc plate, a second movable plate hinge seat corresponding to the second support plate hinge seat is fixed on the left side of the force transmission disc, and the corresponding second support plate hinge seat is hinged with the second movable plate hinge seat through a second connecting rod.
4. The trenchless repairing device for the local complete collapse of the double-wall corrugated pipe as claimed in claim 3, wherein at least one first guide plate extending to the support arc plate is arranged on the right side of the bearing disc at intervals along the circumference, a first limiting plate is fixed on the support arc plate corresponding to the first guide plate from top to bottom, the first limiting plate is a trapezoidal limiting plate with the inner end being high from left to right, a first opening guide groove is arranged at the outer end of the first guide plate corresponding to the position of the first limiting plate, the outer end of the first guide plate is sleeved on the first limiting plate through the first opening guide groove, and the groove bottom surface of the first opening guide groove is abutted against the inclined inner end surface of the first limiting plate; the right side of the force transmission disc is provided with at least one second guide plate extending to the support arc plate at intervals along the circumference, a second limiting plate is fixed on the support arc plate corresponding to the second guide plate from top to bottom, the second limiting plate is a trapezoidal limiting plate with the inner end being high at the left and low at the right, a second opening guide groove is formed in the outer end of the second guide plate corresponding to the second limiting plate, the outer end of the second guide plate is sleeved on the second limiting plate through the second opening guide groove, and the groove bottom surface of the second opening guide groove is abutted to the inclined inner end surface of the second limiting plate.
5. The trenchless repairing device for repairing the local complete collapse of the double-wall corrugated pipe as claimed in claim 2, 3 or 4, wherein a left end plate is sleeved on a main shaft on the right side of the left end cover, and a spring is sleeved on the main shaft between the left end plate and the bearing disc; or a spring is sleeved on the main shaft between the center-penetrating jack and the force transmission disc.
6. The trenchless rehabilitation apparatus for repairing partially and completely collapsed of double-wall corrugated pipe as claimed in claim 5, wherein the top supporting plate is a circular arc shaped cover plate with a high left and a low right.
7. The trenchless rehabilitation device for the partial complete collapse of the double-wall corrugated pipe as claimed in claim 1, 2, 3, 4 or 6, wherein a supporting pipe support is fixed on the right side of the right end cover, the upper left end of the top supporting plate is hinged and installed on the upper right side of the supporting pipe support, and the driving mechanism comprises a driving oil cylinder, a fixing plate and a top supporting connecting rod; the driving oil cylinder is horizontally fixed on the lower bottom plate through the fixing plate, an oil cylinder hinging seat is fixed on a telescopic rod of the driving oil cylinder, an upper cover plate hinging seat is fixed on the lower right side of the jacking plate, and a jacking connecting rod is hinged between the oil cylinder hinging seat and the upper cover plate hinging seat.
8. The trenchless rehabilitation device for the partial complete collapse of the double-wall corrugated pipe as claimed in claim 7, wherein the lower bottom plate is an arc plate with an upward opening, a closed cavity is formed between the lower bottom plate and the top supporting plate, and the driving oil cylinder and the top supporting connecting rod are arranged in the closed cavity.
9. The trenchless rehabilitation device for repairing partially and completely collapsed double-wall corrugated pipe as claimed in claim 1, 2, 3, 4, 6 or 8, wherein a telescopic protective cover is installed between the top supporting plate and the lower bottom plate, and a front-back contraction spring is fixedly connected in the telescopic protective cover.
10. A method of repairing a partially fully collapsed trenchless rehabilitation apparatus using the double-walled corrugated pipe of any of claims 1 to 9 by:
the method comprises the following steps that a non-excavation repairing device with a small-caliber double-wall corrugated pipe partially and completely collapsed is placed into a first inspection well on the left side of a pipeline to be repaired, a quick-connection pull rod or a steel wire rope is connected to a connecting rod at the right end of a collapse expanding device, the other end of the quick-connection pull rod or the steel wire rope is connected with a traction device at a second inspection well on the right side of the pipeline to be repaired, the non-excavation repairing device with the double-wall corrugated pipe partially and completely collapsed is pulled to the initial position of a collapsed pipe section by starting the traction device, a driving oil cylinder is started, a telescopic rod of the driving oil cylinder extends out rightwards, a jacking connecting rod drives a jacking plate to lift; then the driving oil cylinder is driven to retract, and the jacking plate is reset; repeatedly drawing, jacking and resetting until the end position of the completely collapsed pipe section is reached, and gradually completely expanding the pipeline at the collapsed section; and then continuing to pull the repair equipment rightwards, pulling the repair lock ring to the expanded collapse section, starting the penetrating jack, driving the force bearing disc and the force transmission disc to synchronously move leftwards by the penetrating jack, expanding the support arc plates outwards until the support arc plates expand the repair lock ring, self-locking the repair lock ring after the repair lock ring is expanded, stopping the penetrating jack, resetting the force bearing disc and the force transmission disc under the action of respective corresponding springs, synchronously resetting the support arc plates, separating the repair lock ring from the support arc plates, recovering the repair driving device and the collapse expansion device, and completing local repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039935.2A CN112050024A (en) | 2020-09-28 | 2020-09-28 | Trenchless repair device and repair method for partial complete collapse of double-wall corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039935.2A CN112050024A (en) | 2020-09-28 | 2020-09-28 | Trenchless repair device and repair method for partial complete collapse of double-wall corrugated pipe |
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| CN112050024A true CN112050024A (en) | 2020-12-08 |
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| CN202011039935.2A Pending CN112050024A (en) | 2020-09-28 | 2020-09-28 | Trenchless repair device and repair method for partial complete collapse of double-wall corrugated pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352224A (en) * | 2021-12-28 | 2022-04-15 | 海安发达石油仪器科技有限公司 | Petroleum pipe tool repairing device |
| CN117267512A (en) * | 2023-09-27 | 2023-12-22 | 北京北排建设有限公司 | Pipeline integration prosthetic devices |
-
2020
- 2020-09-28 CN CN202011039935.2A patent/CN112050024A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352224A (en) * | 2021-12-28 | 2022-04-15 | 海安发达石油仪器科技有限公司 | Petroleum pipe tool repairing device |
| CN114352224B (en) * | 2021-12-28 | 2022-08-23 | 海安发达石油仪器科技有限公司 | Petroleum pipe tool repairing device |
| CN117267512A (en) * | 2023-09-27 | 2023-12-22 | 北京北排建设有限公司 | Pipeline integration prosthetic devices |
| CN117267512B (en) * | 2023-09-27 | 2024-04-05 | 北京北排建设有限公司 | Pipeline integration prosthetic devices |
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