CN115076505B - Underground sewage pipeline non-excavation stainless steel expansion ring joint repairing construction method - Google Patents
Underground sewage pipeline non-excavation stainless steel expansion ring joint repairing construction method Download PDFInfo
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- CN115076505B CN115076505B CN202210662652.6A CN202210662652A CN115076505B CN 115076505 B CN115076505 B CN 115076505B CN 202210662652 A CN202210662652 A CN 202210662652A CN 115076505 B CN115076505 B CN 115076505B
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- 238000010276 construction Methods 0.000 title claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 17
- 239000010935 stainless steel Substances 0.000 title claims abstract description 17
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- 238000009412 basement excavation Methods 0.000 title abstract description 9
- 229920001971 elastomer Polymers 0.000 claims abstract description 38
- 239000005060 rubber Substances 0.000 claims abstract description 38
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 claims abstract description 16
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 16
- 230000008439 repair process Effects 0.000 claims abstract description 15
- 239000011247 coating layer Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000010008 shearing Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000002262 irrigation Effects 0.000 claims description 4
- 238000003973 irrigation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004588 polyurethane sealant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The application relates to a construction method for repairing a non-excavation stainless steel expansion annular joint of an underground sewage pipeline, relating to the field of pipeline repair and comprising the following steps: s1, detecting a pipeline, determining a leakage position, and cleaning a leakage position and the interior of the pipeline; s2, fixing glass fibers on the inner peripheral wall of the pipeline to cover the leakage position, spraying quick-setting epoxy resin on one side, far away from the inner peripheral wall of the pipeline, of the glass fibers to form a coating layer, wherein the edge of the coating layer protrudes out of the glass fibers, and meanwhile, the quick-setting epoxy resin is poured into a crack of the leakage position; s3, installing a rubber ring matched with the inner peripheral wall of the pipeline at the leakage position, and aligning the rubber ring with a crack at the leakage position in the middle; s4, installing the expansion device in the pipeline, and tightly pressing and fixing the rubber ring on the inner peripheral wall of the pipeline; and S5, carrying out a watering test. This application has the effect that causes the emergence of structural damage problem to the pipeline among the reduction pipeline repair process.
Description
Technical Field
The application relates to the technical field of pipeline repair, in particular to a non-excavation stainless steel expansion ring joint repairing construction method for an underground sewage pipeline.
Background
More underground sewage pipelines are paved underground in cities. During long-term use, the pipeline can be damaged locally due to problems such as rot, overload or human factors. The local damage of the pipeline can cause leakage, and the normal operation of urban sewage discharge is seriously influenced. Pipeline rehabilitation usually adopts non-excavation prosthetic mode, lays and restores underground pipe through the condition of modes such as direction, directional drilling in the minimum part excavation in earth's surface, and this kind of mode can not obstruct the traffic, can not destroy the vegetation, can not influence resident normal life and work order simultaneously.
In the related technology, in the pipeline repairing construction, the rubber water stop is fixed in the area to be repaired through expansion bolts or chemical bolts and steel pressing plates, the rubber water stop is fixed on the inner wall of the pipeline mainly by the expansion bolts or the chemical bolts distributed along the circumferential direction of the pipeline and the whole circumference, so that the water stopping purpose is achieved, but the repaired pipeline causes local damage to the structure of the pipeline, and therefore improvement is needed.
Disclosure of Invention
In order to reduce the problem of structural damage to the pipeline in the pipeline repairing process, the application provides a non-excavation stainless steel expansion ring joint repairing construction method for the underground sewage pipeline.
The application provides a construction method for repairing a non-excavation stainless steel expansion ring joint of an underground sewage pipeline, which adopts the following technical scheme:
the underground sewage pipeline trenchless stainless steel expansion ring joint repairing construction method comprises the following steps:
s1, detecting a pipeline, determining a leakage position, and cleaning a leakage position and the interior of the pipeline;
s2, fixing glass fibers on the inner peripheral wall of the pipeline to cover the leakage position, spraying quick-setting epoxy resin on one side, far away from the inner peripheral wall of the pipeline, of the glass fibers to form a coating layer, wherein the edge of the coating layer protrudes out of the glass fibers, and meanwhile, the quick-setting epoxy resin is poured into a crack of the leakage position;
s3, installing a rubber ring matched with the inner peripheral wall of the pipeline at the leakage position, and aligning the rubber ring with a crack at the leakage position in the middle;
s4, installing the expansion device in the pipeline, and tightly fixing the rubber ring on the inner peripheral wall of the pipeline;
and S5, carrying out an irrigation test, carrying out secondary repair if the leakage position is found to have leakage, and finishing the repair if the leakage position has no leakage.
By adopting the technical scheme, impact operations such as punching on the pipeline are not needed, and structural damage to the pipeline is not easy to cause, so that the service life of the repaired pipeline is ensured; the leak tightness of the pipeline repair can be improved by filling the rapid-hardening epoxy resin into the crack at the leakage position, the glass fiber is matched with the rapid-hardening epoxy resin at two sides, so that the glass fiber can be stably and tightly attached to the pipeline, the connection strength of two sides of the pipeline crack is improved, the possibility of re-expansion of the crack is reduced, meanwhile, the glass fiber is laid firstly, and then the rapid-hardening epoxy resin is filled into the crack, so that the smoothness of the inner wall of the pipeline is favorably kept, and the leak tightness of the pipeline between the rubber rings is improved; the expansion device supports the rubber ring tightly and fixes on the internal perisporium of pipeline, not only can further improve the leakproofness of pipeline crack department, also makes the coating and the glass fiber of crack department further support tightly fixedly simultaneously, makes the coating and the glass fiber of crack department be difficult for sending out with the pipeline inner wall and can break away from when, reinforcing pipeline prosthetic leakproofness.
Optionally, the expansion device includes a plurality of connecting plates, the connecting plates are provided with a plurality of annular connecting plates, two adjacent connecting plates are provided with a fork shearing frame between the two adjacent connecting plates, two ends of the fork shearing frame are hinged to the connecting plates, the telescopic direction of the fork shearing frame is consistent with the circumferential direction of the pipeline, the fork shearing frame is arc-shaped after being unfolded, and the connecting plates are provided with adjusting mechanisms for adjusting and fixing the telescopic degree of the fork shearing frame.
By adopting the technical scheme, the telescopic degrees of the fork shearing frames are changed through the adjusting mechanism, and the adjacent two connecting plates are close to or far away from each other, so that the connecting plates can tightly support rubber rings in pipelines with different diameters, and the applicability of the expansion device is improved; and the plurality of connecting plates can ensure the stability of tightly supporting and fixing the rubber ring by the expansion device.
Optionally, the adjusting mechanism includes a telescopic rod disposed between two adjacent connecting plates, the telescopic rod is arc-shaped, one end of the telescopic rod is hinged to one connecting plate, a sliding through hole is formed in another connecting plate, the other end of the telescopic rod penetrates through the sliding through hole in a sliding manner, the sliding direction of the telescopic rod is consistent with the circumferential direction of the pipeline, the laying directions of the telescopic rods are consistent, one sliding end of the telescopic rod and the hinged end of the adjacent telescopic rod are located on the same connecting plate, the telescopic rod is located on one side, away from the inner side wall of the pipeline, of the fork shearing frame, and a fixing component for fixing the relative positions of the telescopic rod and the connecting plates is arranged on the connecting plate.
By adopting the technical scheme, the plurality of telescopic rods are rotated to drive the two adjacent connecting plates to be close to or away from each other, so that the fork frame is driven to stretch, the annular size formed by the plurality of connecting plates is matched with pipelines with different diameters, one end of the telescopic rod, which is far away from the hinged end of the telescopic rod, is fixed with the connecting plates through the fixing assembly, and the distance between the two adjacent connecting plates is fixed, so that the expansion device can be used for tightly fixing the rubber ring; the telescopic link is kept away from the one end and the connecting plate sliding connection of its hinged end, makes the telescopic link more firm to the support of the scissors frame between two adjacent connecting plates to reinforcing inflation device supports tight steadiness to the rubber circle.
Optionally, the fixing assembly comprises a support rod, a linkage and a locking piece;
the supporting rod is arranged on one connecting plate and is positioned on one side, far away from the fork shearing frame, of the telescopic rod, one end of the supporting rod is rotatably connected with the connecting plate, the other end of the supporting rod is connected with the telescopic rod in a sliding mode, and the sliding direction of the supporting rod is consistent with the circumferential direction of the pipeline;
the linkage piece is equipped with the multiunit, the multiunit the linkage piece is located respectively on a plurality of telescopic links, the linkage piece is used for making and takes place synchronous rotation between two adjacent telescopic links, the locking piece is located on the connecting plate and is used for making the turned angle of bracing piece fixed.
Through adopting above-mentioned technical scheme, when needs adjust the flexible degree of fork frame, the rotation support pole, the bracing piece drives the telescopic link rotation rather than closing on, all the other telescopic links of rethread linkage synchronous drive take place to slide and take place to rotate on one side, thereby make and be close to or keep away from between two adjacent connecting plates, it is fixed to the turned angle of bracing piece through the locking piece, and then the rotation degree with a plurality of telescopic links is fixed, thereby make the distance between two adjacent connecting plates fixed, and then realize supporting tightly the rubber circle in the not pipeline of equidimension, repair efficiency is improved.
Optionally, the locking member comprises a first gear, a first rack and an adjusting bolt;
the connecting plate is provided with a rotating shaft in a rotating mode, the supporting rod is fixedly connected with the rotating shaft, the first gear is coaxially and fixedly connected to the rotating shaft, the adjusting bolt is assembled on the connecting plate in a threaded mode, the first rack is fixed to the free end of the adjusting bolt and is matched with the connecting plate in a sliding mode, and the first gear is meshed with the first rack.
Through adopting above-mentioned technical scheme, twist and move adjusting bolt, drive first rack and slide along adjusting bolt's axis direction, drive the first gear of meshing with it and take place to rotate to make the axis of rotation take place to rotate and realize the regulating of bracing piece to telescopic link turned angle, also can realize the rigidity to the telescopic link of rotating different angles simultaneously at any time, so that constructor uses the device that expands.
Optionally, the linkage is the wedge, the wedge is located one side that the fork frame was kept away from to the telescopic link, and is close to the hinged end setting of telescopic link, and the thickness that the hinged end was kept away from to the wedge is less than the thickness that is close to the hinged end, and adjacent telescopic link is close to one side and the wedge slip adaptation of wedge, and the circumference direction of slip direction and pipeline is unanimous.
Through adopting above-mentioned technical scheme, when the distance between two connecting plates needs to be enlarged, in two adjacent telescopic links, its slip end slides to the hinged end along the slip end of another telescopic link on the wedge when a telescopic link rotates to continuous promotion another telescopic link rotates to the direction that is close to the pipeline internal perisporium, and then realizes the rotation of a plurality of telescopic links, improvement operating efficiency.
Optionally, one side of the telescopic rod, which is far away from the hinged end of the telescopic rod, is rotatably provided with a second gear, one side of the wedge block, which is far away from the fork shearing frame, is provided with a second rack, the second rack is arranged along the circumferential direction of the pipeline, and the second gear is meshed with the second rack.
Through adopting above-mentioned technical scheme, second gear and second rack mesh mutually, can enough realize the firm slip between telescopic link and the wedge, better synchronous rotation also makes difficult relative slip that takes place between two adjacent telescopic links, supports each other.
Optionally, a pull rod is arranged between every two adjacent telescopic rods, one end of each pull rod is rotatably connected with the telescopic rod where the wedge-shaped block is located, and the other end of each pull rod is rotatably connected with the telescopic rod where the second gear is located.
Through adopting above-mentioned technical scheme, the pull rod makes difficult emergence separation between two adjacent telescopic links, guarantees to take place firm relative displacement between the two, better realization synchronous operation.
Optionally, one side of the fork shearing frame far away from the telescopic rod is provided with a plurality of abutting blocks, and the abutting blocks are movably attached to the inner peripheral wall of the rubber ring.
Through adopting above-mentioned technical scheme, when the connecting plate drove the fork frame and expandes, the tight leakproofness is supported to the rubber circle to a plurality of butt joint pieces and the interior perisporium butt of rubber circle to reinforcing fork frame.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the quick-setting epoxy resin is poured at the leakage crack, and the rubber ring is tightly abutted and fixed at the crack through the rubber ring and the expansion device on the inner side of the pipeline, so that the leakage position of the pipeline is repaired, the pipeline is not required to be subjected to impact operations such as punching and the like, the structural damage to the pipeline is not easily caused, and the service life of the repaired pipeline is ensured;
2. the telescopic degrees of the fork frames are changed through the adjusting mechanism, and the adjacent two connecting plates are close to or far away from each other, so that the connecting plates can tightly abut against rubber rings in pipelines with different diameters, and the applicability of the expansion device is improved;
3. the rotation bracing piece, the bracing piece drives rather than the telescopic link that closes on and rotates, the rotation takes place to slide while taking place to the rethread linkage drives all the other telescopic links in step, thereby make and be close to or keep away from between two adjacent connecting plates, it is fixed to the turned angle of bracing piece through the locking piece, and then the rotation degree with a plurality of telescopic links is fixed, thereby make the distance between two adjacent connecting plates fixed, and then the realization supports tightly the rubber circle in the not pipeline of equidimension, improve repair efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the expansion device of an embodiment of the present application;
FIG. 4 is a schematic view of the connection structure of the support rod, the connection plate and the locking member in the embodiment of the present application;
FIG. 5 is an enlarged partial view of portion B of FIG. 3;
fig. 6 is a partially enlarged schematic view of a portion C in fig. 3.
Reference numerals: 1. a connecting plate; 11. a slide through hole; 12. a rotating shaft; 2. a fork shearing frame; 3. an adjustment mechanism; 31. a telescopic rod; 311. a second gear; 4. a fixing component; 41. a support bar; 42. a linkage; 421. a wedge block; 4211. a second rack; 43. a locking member; 431. a first gear; 432. a first rack; 433. adjusting the bolt; 5. a pull rod; 6. a butting block; 7. a pipeline; 71. cracking; 8. glass fibers; 9. a coating layer; 10. a rubber ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a construction method for repairing a non-excavation stainless steel expansion ring joint of an underground sewage pipeline. Referring to fig. 1 and 2, the underground sewage pipeline trenchless stainless steel expansion ring joint repairing construction method comprises the following steps:
s1, firstly, detecting a pipeline 7, determining a leakage position, and then cleaning a crack 71 at a leakage position and the interior of the pipeline 7;
s2, laying glass fibers 8 on the inner peripheral wall of the pipeline 7 to cover the leakage position, spraying quick-setting epoxy resin on one side, far away from the inner peripheral wall of the pipeline 7, of the glass fibers 8 to form a coating layer 9, wherein the edge of the coating layer 9 protrudes out of the glass fibers 8, fixing the glass fibers 8 on the inner wall of the pipeline 7 after the quick-setting epoxy resin is condensed, pouring the quick-setting epoxy resin into a crack 71 of the leakage position, and coating polyurethane sealant on the leakage position of the outer peripheral wall of the pipeline 7 for sealing treatment;
s3, installing a rubber ring 10 matched with the inner peripheral wall of the pipeline 7 at the leakage position, aligning the rubber ring 10 with a crack 71 at the leakage position in the middle, wherein the width of the rubber ring 10 is greater than that of the crack 71 at the leakage position and is also greater than that of the coating layer 9, and the rubber ring 10 is made of styrene butadiene rubber;
s4, installing the expansion device in the pipeline 7, and tightly fixing the rubber ring 10 on the inner peripheral wall of the pipeline 7;
and S5, carrying out irrigation test, stopping irrigation and carrying out secondary repair if the leakage position is found to have leakage, and finishing repair if the leakage position has no leakage.
Referring to fig. 2 and 3, the expansion device includes connecting plate 1, connecting plate 1 is equipped with four, connecting plate 1 is circular-arc, four connecting plates 1 are that the annular form distributes and equidistant lay, the direction of laying of connecting plate 1 parallels with the axis of pipeline 7, be equipped with fork frame 2 between two adjacent connections, the both ends of fork frame 2 all lay the direction unanimous with the radius that connecting plate 1 articulated and articulated axis and pipeline 7 mutually, the flexible direction of fork frame 2 is unanimous with the girth direction of pipeline 7, and fork frame 2 is the arc form after expanding, one side interval fixedly connected with a plurality of butt pieces 6 of telescopic link 31 are kept away from to fork frame 2, butt piece 6 is made by rubber materials, butt piece 6 keeps away from one side of fork frame 2 and the interior perisporium activity laminating of rubber circle 10, in order to strengthen fork frame 2 and to rubber circle 10 tight leakproofness.
In order to realize the abutting operation of the rubber rings 10 in the pipelines 7 with different diameters, the applicability of the expansion device is improved; two ends of the connecting plate 1 are respectively provided with an adjusting mechanism 3 for adjusting and fixing the telescopic degree of the fork shearing frame 2. Adjustment mechanism 3 is including locating telescopic link 31 between two adjacent connecting plates 1, telescopic link 31 is the arc form, telescopic link 31's one end is articulated mutually and articulated axis parallels with pipeline 7's axis with a connecting plate 1, sliding through hole 11 has been seted up on another connecting plate 1, telescopic link 31's the other end slides all the time and runs through sliding through hole 11, and the girth direction of sliding direction and pipeline 7 is unanimous, and a plurality of telescopic links 31 lay the direction unanimously, lay clockwise in proper order along pipeline 7's girth direction, telescopic link 31's slip end and adjacent telescopic link 31's hinged end are located same connecting plate 1, telescopic link 31 is located the one side that pipeline 7 inside walls were kept away from to fork frame 2.
Referring to fig. 3 and 4, the connecting plate 1 is provided with a fixing assembly 4 for fixing the relative position of the telescopic rod 31 and the connecting plate 1. The fixing assembly 4 includes a support rod 41, a link member 42, and a locking member 43; the supporting rod 41 is arranged on one connecting plate 1 and is positioned on one side of the telescopic rod 31 far away from the fork frame 2, one end of the supporting rod 41 is rotatably connected with the connecting plate 1, the line of the rotating shaft 12 is arranged in the same direction with the axis of the pipeline 7, the other end of the supporting rod is slidably connected with the adjacent telescopic rod 31, the locking piece 43 is arranged on the connecting plate 1 and is used for fixing the rotating angle of the supporting rod 41, the linkage pieces 42 are provided with three groups, the three groups of linkage pieces 42 are respectively arranged on three telescopic rods 31 which are not slidably connected with the supporting rod 41, and the linkage pieces 42 are used for enabling the adjacent two telescopic rods 31 to synchronously rotate,
referring to fig. 4 and 5, set up bracing piece 41 on being located a connecting plate 1 in pipeline 7 middle part in this application embodiment, in other embodiments, also can locate bracing piece 41 on being located connecting plate 1 of pipeline 7 bottom to make things convenient for constructor to operate, the other end integrated into one piece of bracing piece 41 is connected with the slider of T type, set up the spout of T type on the telescopic link 31 that closes on with bracing piece 41, the spout is laid along the girth direction of pipeline 7, slider and spout slip adaptation.
Referring to fig. 4 and 5, the locking member 43 includes a first gear 431, a first rack 432, and an adjusting bolt 433; the connecting plate 1 is rotatably provided with a rotating shaft 12, the line of the rotating shaft 12 is consistent with the axis direction of the pipeline 7, the supporting rod 41 is fixedly connected with the rotating shaft 12, one end of the rotating shaft 12 protrudes out of one side of the connecting plate 1, the first gear 431 is coaxially and fixedly connected to one end of the rotating shaft 12 protruding out of the connecting plate 1, mounting plates (not marked in the drawing) are fixedly connected to the end faces of two ends of the connecting plate 1, an adjusting bolt 433 is assembled on the connecting plate 1 in a threaded mode, the first rack 432 is fixed to the free end of the adjusting bolt 433 and is in sliding fit with the connecting plate 1, one side of the first rack 432 close to the connecting plate 1 is fixedly connected with a dovetail, a dovetail groove is formed in the end face of the connecting plate 1, the arrangement direction of the dovetail groove is perpendicular to the arrangement direction of the length of the rotating shaft 12, the dovetail groove is in sliding fit with the dovetail groove, and the first gear 431 is meshed with the first rack 432.
Referring to fig. 2 and 6, the link 42 is a wedge 421, the wedge 421 is fixedly connected to one side of the telescopic rod 31 far away from the fork frame 2, and is close to the hinged end of the telescopic rod 31, the thickness of the wedge 421 far away from the hinged end is smaller than that of the wedge 421 near the hinged end, one side of the wedge 421 far away from the fork frame 2 is fixedly connected with a second rack 4211, the second rack 4211 is arranged along the circumferential direction of the pipeline 7, one side of the telescopic rod 31 far away from the hinged end is rotatably provided with a second gear 311, the axial arrangement direction of the line of the rotating shaft 12 is the same as that of the pipeline 7, and the second gear 311 is meshed with the second rack 4211. A pull rod 5 is arranged between two adjacent telescopic rods 31, one end of the pull rod 5 is rotatably connected with the telescopic rod 31 where the wedge block 421 is located, the other end of the pull rod 5 is rotatably connected with the telescopic rod 31 where the second gear 311 is located, and the arrangement directions of the rotating shafts 12 at the two ends of the pull rod 5 are consistent with the arrangement directions of the axes of the pipelines 7.
When the telescopic degree of the fork frame 2 needs to be adjusted, the adjusting bolt 433 is screwed, the first rack 432 is driven to slide along the axis direction of the adjusting bolt 433, and the first gear 431 engaged with the first rack is driven to rotate, so that the rotating shaft 12 rotates to adjust the rotating angle of the supporting rod 41, and further the telescopic rods 31 connected with the supporting rod 41 are driven to rotate, in two adjacent telescopic rods 31, when one telescopic rod 31 rotates, the sliding end slides to the hinged end along the sliding end of the other telescopic rod 31 on the wedge 421, so that the other telescopic rod 31 is continuously pushed to rotate in the direction close to the inner peripheral wall of the pipeline 7, and further the rotation of the telescopic rods 31 is realized, so that two adjacent connecting plates 1 are close to or far away, and further the fork frame 2 is driven to stretch, the annular size surrounded by the connecting plates 1 is matched with the pipelines 7 with different diameters, the adjusting bolt 433 assembled by threads can synchronously fix the rotating angle of the supporting rod 41, and further fix the rotating degree of the telescopic rods 31, so that the distance between two adjacent connecting plates 1 is fixed, further the rubber rings 10 in the pipelines 7 with different sizes are repaired, and the repairing efficiency is improved.
The implementation principle of the underground sewage pipeline trenchless stainless steel expansion ring joint repairing construction method in the embodiment of the application is as follows: pouring quick-setting epoxy resin into the crack 71 at the leakage position can improve the sealing performance of repairing the pipeline 7, laying glass fiber 8 on the inner side of the leakage position of the pipeline 7, spraying quick-setting epoxy resin on one side, far away from the inner side wall of the pipeline 7, of the glass fiber 8 to form a coating layer 9, matching the glass fiber 8 with the quick-setting epoxy resin on two sides, enabling the glass fiber 8 to be firmly and tightly attached to the pipeline 7, improving the connection strength of two sides of the crack 71 of the pipeline 7, reducing the possibility of re-expansion of the crack 71, simultaneously enabling a rubber ring 10 to be tightly fixed on the inner peripheral wall of the pipeline 7 through an expansion device, not only further improving the sealing performance of the crack 71 of the pipeline 7, but also enabling the coating layer 9 and the glass fiber 8 at the crack 71 to be further tightly fixed, enabling the coating layer 9 and the glass fiber 8 at the crack 71 not to be easily separated from the inner wall of the pipeline 7, and enhancing the sealing performance of repairing the pipeline 7.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The underground sewage pipeline trenchless stainless steel expansion ring joint repairing construction method is characterized by comprising the following steps: the method comprises the following steps:
s1, detecting a pipeline (7) to determine a leakage position, and then cleaning a leakage position and the interior of the pipeline (7);
s2, fixing glass fibers (8) on the inner peripheral wall of the pipeline (7) to cover the leakage position, spraying quick-setting epoxy resin on one side, far away from the inner peripheral wall of the pipeline (7), of the glass fibers (8) to form a coating layer (9), wherein the edge of the coating layer (9) protrudes out of the glass fibers (8), and meanwhile, the quick-setting epoxy resin is poured into a crack (71) of the leakage position;
s3, installing a rubber ring (10) matched with the inner peripheral wall of the pipeline (7) at the leakage position, and aligning the rubber ring (10) with a crack (71) at the leakage position in the middle;
s4, installing the expansion device in the pipeline (7), and tightly fixing the rubber ring (10) on the inner peripheral wall of the pipeline (7);
s5, performing an irrigation test, performing secondary repair if leakage occurs at the leakage position, and completing repair if no leakage exists at the leakage position;
the expansion device comprises a plurality of connecting plates (1), the connecting plates (1) are annularly distributed, a fork shearing frame (2) is arranged between every two adjacent connecting plates, two ends of the fork shearing frame (2) are hinged to the connecting plates (1), the telescopic direction of the fork shearing frame (2) is consistent with the circumferential direction of a pipeline (7), the fork shearing frame (2) is arc-shaped after being unfolded, and an adjusting mechanism (3) for adjusting and fixing the telescopic degree of the fork shearing frame (2) is arranged on the connecting plates (1);
adjustment mechanism (3) are including locating telescopic link (31) between two adjacent connecting plates (1), and telescopic link (31) are the arc form, the one end and a connecting plate (1) of telescopic link (31) are articulated mutually, have seted up slip through-hole (11) on another connecting plate (1), the other end of telescopic link (31) slides and runs through slip through-hole (11), and the girth direction of slip direction and pipeline (7) is unanimous mutually, and the direction of laying of a plurality of telescopic links (31) is unanimous, one the slip end of telescopic link (31) is located same connecting plate (1) with the hinged end of adjacent telescopic link (31), telescopic link (31) are located one side of pipeline (7) inside wall is kept away from in scissors frame (2), be equipped with on connecting plate (1) and be used for making telescopic link (31) and fixed subassembly (4) of connecting plate (1) relative position.
2. The trenchless stainless steel expanding ring joint repair construction method of claim 1, wherein: the fixing component (4) comprises a support rod (41), a linkage piece (42) and a locking piece (43);
the supporting rod (41) is arranged on one connecting plate (1) and is positioned on one side, far away from the fork shearing frame (2), of the telescopic rod (31), one end of the supporting rod (41) is rotatably connected with the connecting plate (1), the other end of the supporting rod is connected with the telescopic rod (31) in a sliding mode, and the sliding direction of the supporting rod is consistent with the circumferential direction of the pipeline (7);
linkage (42) are equipped with the multiunit, the multiunit linkage (42) are located respectively on a plurality of telescopic links (31), linkage (42) are used for making and take place synchronous rotation between two adjacent telescopic links (31), locking piece (43) are located on connecting plate (1) and are used for making the turned angle of bracing piece (41) fixed.
3. The underground sewage pipeline trenchless stainless steel expansion ring joint repairing construction method of claim 2, wherein: the locking member (43) comprises a first gear (431), a first rack (432) and an adjusting bolt (433);
rotate on connecting plate (1) and be provided with axis of rotation (12), bracing piece (41) with axis of rotation (12) fixed connection, first gear (431) coaxial fixed connection is on axis of rotation (12), adjusting bolt (433) screw assembly is on connecting plate (1), first rack (432) be fixed in adjusting bolt (433) the free end and with connecting plate (1) slip adaptation, first gear (431) mesh with first rack (432).
4. The trenchless stainless steel expanding ring joint repair construction method of claim 3, wherein: linkage (42) are wedge (421), one side of fork frame (2) is kept away from in telescopic link (31) is located in wedge (421), and is close to the hinged end setting of telescopic link (31), and the thickness that the hinged end was kept away from in wedge (421) is less than the thickness that is close to the hinged end, and adjacent telescopic link (31) are close to one side and the wedge (421) slip adaptation of wedge (421), and the girth direction of slip direction and pipeline (7) is unanimous.
5. The trenchless stainless steel expanding ring joint repair construction method of claim 4, wherein: one side of the telescopic rod (31) far away from the hinged end of the telescopic rod is provided with a second gear (311) in a rotating mode, one side of the wedge block (421) far away from the fork shearing frame (2) is provided with a second rack (4211), the second rack (4211) is arranged along the circumferential direction of the pipeline (7), and the second gear (311) is meshed with the second rack (4211).
6. The underground sewage pipeline trenchless stainless steel expansion ring joint repairing construction method of claim 1, wherein: two adjacent be equipped with pull rod (5) between telescopic link (31), the one end of pull rod (5) rotates with telescopic link (31) that wedge block (421) belonged to be connected, and the other end rotates with telescopic link (31) that second gear (311) belonged to be connected.
7. The trenchless stainless steel expanding annular joint repairing construction method of claim 6, wherein: one side of the fork shearing frame (2) far away from the telescopic rod (31) is provided with a plurality of abutting blocks (6), and the abutting blocks (6) are movably attached to the inner peripheral wall of the rubber ring (10).
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| CN116617792B (en) * | 2023-05-30 | 2023-10-20 | 宿迁凯达环保设备制造有限公司 | Exhaust emission purifying equipment |
| CN116792598A (en) * | 2023-07-25 | 2023-09-22 | 齐力建设集团有限公司 | Local repair structure of micro-disease sewage pipeline and construction method thereof |
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