CN116254907B - Municipal drainage pipeline construction method - Google Patents
Municipal drainage pipeline construction method Download PDFInfo
- Publication number
- CN116254907B CN116254907B CN202310268403.3A CN202310268403A CN116254907B CN 116254907 B CN116254907 B CN 116254907B CN 202310268403 A CN202310268403 A CN 202310268403A CN 116254907 B CN116254907 B CN 116254907B
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- Prior art keywords
- pipeline unit
- centering
- worm
- pipeline
- centering rod
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Classifications
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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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/10—Accessories therefor, e.g. anchors for aligning
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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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/10—Sleeveless joints between two pipes, one being introduced into the other
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The application relates to the technical field of pipeline construction, in particular to a municipal drainage pipeline construction method, which comprises the steps of installing a sealing ring in a socket of one pipeline unit section, installing a centering device at the butt joint end parts of two pipeline unit sections respectively, wherein the centering device comprises a centering rod, the centering rod in one centering device is of a hollow structure, the inner diameter of the centering rod of the hollow structure is equal to the outer diameter of the centering rod of the other centering rod, and when the centering device is installed, the centering device is fixed on the inner wall of the pipeline unit section, the center of the centering rod coincides with the center of the pipeline unit section, and the end parts of the centering rods are beyond the end surfaces of the pipeline unit sections; then when the two pipeline unit sections are mutually close, the end parts of the two centering rods are mutually spliced and matched before the end parts of the two pipeline unit sections; and finally, extruding and sealing the two pipeline unit sections. The application has the effect of aligning two pipeline unit sections when the two pipeline unit sections are installed and improving the sealing performance.
Description
Technical Field
The application relates to the technical field of pipeline construction, in particular to a municipal drainage pipeline construction method.
Background
Pipeline construction refers to the fact that pipeline unit sections are sequentially connected and paved to a supporting position, and for municipal drainage pipes, the municipal drainage pipes are usually buried underground, the municipal drainage pipes located underground are required to have good corrosion resistance, the pipeline unit sections made of concrete materials are selected for use, when construction is carried out, grooves are required to be dug on the ground, then the pipeline unit sections are sequentially placed in the grooves, and then the pipeline unit sections are connected in a sealing mode.
The utility model discloses a connection structure of municipal drainage pipe in the related art, including two at least adjacent pipeline unit festival, the one end of pipeline is the socket, the other end is the bellmouth, when the installation, place annular sealing washer on the inner wall of bellmouth earlier, the one end diameter of socket is greater than the internal diameter of annular sealing washer, then use crane or excavator to hoist with one pipeline unit festival, make the socket one end of pipeline unit festival correspond with the bellmouth of another pipeline unit who has laid the completion, insert the socket of pipeline unit festival into the bellmouth of another pipeline unit festival again, thereby make the sealing washer be in between two pipeline unit festival and press from both sides, the sealing washer is between the outer wall of socket and the inner wall of bellmouth, make two pipeline unit festival carry out sealing connection.
However, in the above structure, when the pipe unit section is lifted and then is butted with the other pipe unit section, the center lines of the two pipe unit sections are difficult to coincide, and the circumferential sealing of the installed sealing ring is easily uneven.
Disclosure of Invention
In order to align two pipeline unit sections when being installed and improve the sealing performance, the application provides a municipal drainage pipeline construction method.
The application provides a municipal drainage pipeline construction method, which adopts the following technical scheme:
the utility model provides a municipal drainage pipeline construction method, includes installing the sealing washer in the bellmouth of a pipeline unit festival, still include installing a centering device respectively at the tip that two pipeline unit knots butt joint, centering device includes centering rod, the centering rod in a centering device is hollow structure, and the centering rod internal diameter of hollow structure equals with the external diameter of another centering rod, when centering device installs, centering device is fixed on the inner wall of pipeline unit festival, and the center of centering rod coincides with the center of pipeline unit festival, and the tip of centering rod surpasses the terminal surface of exit tube pipeline unit festival simultaneously; then when the two pipeline unit sections are mutually close, the end parts of the two centering rods are mutually spliced and matched before the end parts of the two pipeline unit sections; and finally, extruding and sealing the two pipeline unit sections.
Through adopting above-mentioned technical scheme, during the use, centering device includes centering rod, when installing centering device to the inner wall of pipeline unit festival, centering rod and pipeline unit festival central line coincidence, because when installing centering device, surpass the terminal surface of pipeline unit festival with the tip of centering rod, when being close to each other two pipeline unit festival, the tip of two centering rod is pegged graft each other in advance the tip of two pipeline unit festival, and then two centering rod cooperation in the centering device, make two pipeline unit can central line coincidence, and then when the bellmouth and the socket clearance for pipeline unit festival are great, still can guarantee that pipeline unit festival is in the state of alignment when installing, and then improve the circumference leakproofness that pipeline unit festival passes through the sealing washer.
Preferably, the centering device further comprises a main body, supporting legs and an adjusting disc, wherein the centering rod is fixed at the center of the main body, a plurality of supporting legs are arranged along the circumferential direction of the main body and are in sliding fit with the main body, the adjusting disc is rotatably connected to the main body and coincides with the center of the main body, a plurality of arc-shaped grooves are formed in the adjusting disc, one arc-shaped groove corresponds to one supporting leg, a driving rod is mounted on the supporting leg, the driving rod is inserted into the arc-shaped grooves, and one end of each arc-shaped groove gradually extends from the center of the adjusting disc to the edge of the adjusting disc to the other end of each arc-shaped groove; the adjusting disk is connected with a driving component.
Through adopting above-mentioned technical scheme, supporting leg and main part sliding fit, when the regulating disk passes through drive assembly and rotates, the arc groove on the regulating disk can drive the actuating lever and remove along the arc groove, and then can be with the supporting leg to the main part internal extension, make a plurality of supporting legs automatic with the inner wall butt of pipeline unit festival to guarantee that centering rod is in the center of pipeline unit festival, make things convenient for centering device's installation simultaneously.
Preferably, the drive assembly comprises a drive bevel gear, a driven bevel gear, a worm gear and a worm, wherein the driven bevel gear is fixedly connected with the adjusting disc coaxially, the drive bevel gear is fixedly connected with the worm gear coaxially and rotatably on a centering rod, the worm is mounted on the centering rod and is used for being meshed with the worm gear, a knob is coaxially arranged on the worm, and the knob extends out from one end of the centering rod, which is located outside the main body.
Through adopting above-mentioned technical scheme, when worm and worm wheel meshing, connect the knob on the worm, rotate the knob and can make the worm rotate, and then the worm rethread worm wheel will initiatively leave the rotation to make driven bevel gear drive the regulating disk and rotate, when the worm stopped, can utilize the auto-lock to make the supporting leg keep with the butt of pipeline unit festival inner wall, it is not hard up when reducing the installation.
Preferably, the centering rod is internally provided with an unlocking block, the unlocking block is in sliding fit on the centering rod and the sliding direction is perpendicular to the worm, the worm is rotationally arranged on the unlocking block, the centering rod is internally fixedly provided with a fixing block, the fixing block is slidably provided with a bolt, the bolt is used for connecting the fixing block and the unlocking block, the unlocking block is connected with a spring, and the acting force of the spring is used for driving the worm to be away from the worm wheel.
Through adopting above-mentioned technical scheme, unblock piece sliding fit is on centering rod, when the bolt loosens the fixed time to the unblock piece, and the unblock piece promotes the worm to keep away from the worm wheel under the effect of spring, makes worm and worm wheel separation, and then the supporting leg can break away from on the inner wall of pipeline unit festival automatically, conveniently takes out centering device.
Preferably, the inside of centering rod is provided with the stay cord, installs the stay cord and centering rod fixed connection in the centering rod of pipeline unit festival bellmouth department, two stay cords are dismantled and are connected to the bolt is fixed on the stay cord, installs the stay cord in the centering rod of pipeline unit festival socket department and stretches out from the other end of pipeline unit festival.
Through adopting above-mentioned technical scheme, the one end of stay cord stretches out from the tip of pipeline unit, and two stay cords are connected simultaneously, and when the diameter of pipeline unit festival is less, the staff can directly draw the stay cord from the one end of pipeline, and the stay cord can take off centering device from pipeline unit festival inner wall on the one hand, on the other hand can draw out two centering devices simultaneously.
Preferably, when the centering device is installed, the worm and the worm wheel are kept in a loose state, the adjusting disc is manually shifted, and when the supporting legs of the adjusting disc are driven to be close to the inner wall of the pipeline unit section, the worm and the worm wheel are meshed through the bolt.
Through adopting above-mentioned technical scheme, when centering device installs, make worm and worm wheel be in the state of unclamping earlier, and stir the adjustment disk and make the supporting leg be close to the inner wall of pipeline unit festival, rethread worm and worm wheel are adjusted, make the installation ratio of supporting leg faster, construction is more convenient.
Preferably, an inner wall of one end of the socket of the pipe unit section is provided with an inner edge, and the sealing ring is arranged on one side of the inner edge, which is close to the middle section of the pipe unit section.
Through adopting above-mentioned technical scheme, the sealing washer is installed in the one side that is close to pipeline unit festival middle section at the inner edge, and when the sealing washer in the use, the inner edge can keep off the sealing washer, reduces the sealing washer to the position removal of pipeline unit festival, and then guarantees the leakproofness that uses for a long time.
Preferably, an outer edge is arranged on the outer wall of one end of the pipe unit section socket, a plurality of anti-falling devices are circumferentially arranged on the pipe unit sections, and after the two pipe unit sections are in extrusion sealing connection, the angles of the two pipe unit sections need to be adjusted and the anti-falling devices are installed along the circumferential direction of the pipe unit sections, so that the anti-falling devices are abutted to the outer edge.
Through adopting above-mentioned technical scheme, connect a plurality of anticreep devices on the outer fringe, after adjusting the angle of two pipeline unit sections, by the butt of anticreep device with the outer fringe, can be with the angle of anticreep device control two pipeline unit sections, reduce the leakage that single pipeline unit section wide-angle slope that the accumulation of off-angle took place to cause in the use arouses.
Preferably, the anti-falling device comprises an L-shaped piece and a connecting bolt, one side of the L-shaped piece is inserted into a gap between the inner edge and the pipe unit joint, the connecting bolt is rotatably arranged at the other end of the L-shaped piece, and the connecting bolt is in threaded connection with the end face of one end of the socket of the pipe unit joint.
Through adopting above-mentioned technical scheme, L shape spare one end is gone into from the clearance of inner edge and pipeline unit festival for keep off the outer fringe, the other end rotates installation connecting bolt, makes connecting bolt's coupling depth more conveniently control L shape spare's installation depth.
Preferably, when the connecting bolt is installed, the L-shaped piece is abutted on the outer edge, and then the connecting bolt is reversely loosened for 1-3 circles according to the ambient temperature during construction.
By adopting the technical scheme, after the L-shaped piece is abutted to the outer edge, the connecting bolt is reversely loosened for 1-3 circles, so that the pipe unit sections are telescopic, and the overlarge stress generated during thermal expansion and contraction is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the centering device is installed, the end parts of the centering rods exceed the end surfaces of the pipeline unit sections, and when the two pipeline unit sections are mutually close, the end parts of the two centering rods are mutually spliced before the end parts of the two pipeline unit sections, so that the circumferential sealing performance of the pipeline unit sections through the sealing rings is improved;
2. the unlocking block pushes the worm to be far away from the worm wheel under the action of the spring, so that the worm is separated from the worm wheel, and further the supporting legs can be automatically separated from the inner wall of the pipeline unit section, so that the centering device is convenient to take out;
3. after the angles of the two pipeline unit sections are adjusted, the anti-falling device is abutted with the outer edge, so that the angle of the two pipeline unit sections can be controlled by the anti-falling device, and leakage caused by large-angle inclination of the single pipeline unit section due to accumulation of deflection angles in the use process is reduced.
Drawings
FIG. 1 is a schematic view of the internal structure of a pipe unit section according to an embodiment of the present application;
FIG. 2 is a schematic view of a centering device according to an embodiment of the present application;
FIG. 3 is a schematic view of the connection of the worm in an embodiment of the application;
FIG. 4 is a schematic view showing the abutting state of two centering devices according to an embodiment of the present application;
FIG. 5 is a schematic view of the overall structure in an embodiment of the present application;
fig. 6 is an enlarged partial schematic view of the portion a in fig. 1.
Reference numerals illustrate: 1. a pipe unit section; 2. a centering device; 21. a main body; 211. a guide hole; 22. support legs; 23. an adjusting plate; 231. an arc-shaped groove; 24. a drive assembly; 241. a drive bevel gear; 242. a driven bevel gear; 243. a worm wheel; 244. a worm; 245. a rotating shaft; 246. a frame body; 247. a knob; 25. a driving rod; 3. a seal ring; 4. an anti-falling device; 41. an L-shaped member; 42. a connecting bolt; 43. a baffle ring; 5. centering rod; 51. chamfering; 6. unlocking the block; 61. a spring; 71. a pull rope; 72. a plug pin; 73. a fixed block; 74. a jack; 81. an outer edge; 82. and an inner edge.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a municipal drainage pipeline construction method, referring to fig. 1, comprising the steps of firstly installing a centering device 2 in two pipeline unit sections 1, putting a sealing ring 3 into a bell mouth of one pipeline unit section 1, hoisting the other pipeline unit section 1, mutually matching the centering devices 2 in the two pipeline unit sections 1 to guide the central lines of the two pipeline unit sections 1 to coincide, enabling a jack of the hoisted pipeline unit section 1 to enter the bell mouth with the sealing ring 3, finally extruding one end of the bell mouth of the hoisted pipeline unit section 1, enabling the jack of the pipeline unit section 1 to enter the sealing ring 3, adjusting the angles of the two pipeline unit sections 1 to enable the two pipeline unit sections 1 to meet the trend of pipeline laying, and connecting an anti-falling device 4 outside the pipeline unit section 1 so as to reduce falling off of the pipeline unit section 1 in the use process.
Referring to fig. 2, the centering device 2 includes a main body 21, support legs 22 and an adjusting disk 23, the main body 21 is configured in a cylindrical shape in this embodiment, of course, the support legs 22 may be configured in a polygonal shape, the support legs 22 are configured in a plurality, the support legs 22 are uniformly arranged in a circumferential direction of the main body 21 and are arranged at least two circles along an axial direction of the main body 21, in this embodiment, the support legs 22 are arranged two circles along the axial direction of the main body 21, three support legs 22 are arranged in each circle along the circumferential direction of the main body 21, guide holes 211 are formed in a side wall of the main body 21, a middle portion of the support legs 22 is slidably fitted in the guide holes 211, one end of the support legs 22 is located in the main body 21, the other end of the support legs 22 is located outside the main body 21, one end of the support legs 22 located outside the main body 21 is used for abutting against an inner wall of the pipe unit section 1, and one end located inside the main body 21 is connected with the adjusting disk 23 disposed inside the main body 21. The arrangement of the support legs 22 is arranged along a radial line of the center of the main body 21. The dial 23 is rotatably coupled to an inner wall of the main body 21, and a driving assembly 24 for driving the dial 23 to rotate is provided in the main body 21. A plurality of arc grooves 231 are formed in the regulating plate 23, and one end of the arc grooves 231 gradually extends from the center of the regulating plate 23 to the edge of the regulating plate 23 from the other end. In this embodiment, two adjusting discs 23 are provided and are fixedly connected coaxially, the two adjusting discs 23 are respectively located at two ends of the main body 21, and stability can be improved through the two adjusting discs 23. The driving rod 25 is arranged at one end of the supporting leg 22, which is positioned in the main body 21, the driving rod 25 is rotatably connected to the supporting leg 22, the end part of the driving rod 25 is inserted into the arc-shaped groove 231, the driving rod 25 is matched with the arc-shaped groove 231, two supporting legs 22 which are arranged along the axis of the main body 21 are connected to the same driving rod 25, when the adjusting disk 23 is driven by the driving component 24, the driving rod 25 moves along the arc-shaped groove 231, when the driving rod 25 starts to move from one end, which is close to the center of the adjusting disk 23, of the arc-shaped groove 231, the supporting leg 22 gradually extends out of the main body 21, and a plurality of supporting legs 22 simultaneously move towards the inner wall of the pipeline unit section 1, so that the center of the main body 21 can be aligned with the center of the pipeline unit section 1.
Referring to fig. 2 and 3, the driving assembly 24 includes a drive bevel gear 241, a driven bevel gear 242, a worm gear 243, and a worm 244, and a centering rod 5 is provided at the center of the main body 21, and the centering rod 5 is fixedly coupled with the main body 21. The axis of the worm 244 is parallel to the axis of the centering rod 5, the worm 244 is arranged inside the centering rod 5, the worm wheel 243 is coaxially arranged with the drive bevel gear 241, and the rotating shaft 245 is arranged on the worm wheel 243 and the drive bevel gear 241 in a penetrating manner, so that the rotating shaft 245 is perpendicular to the center line of the main body 21 and penetrates through the centering rod 5, one end of the rotating shaft 245 is positioned outside the centering rod 5, the drive bevel gear 241 is arranged on the outer side of the centering rod 5, the worm wheel 243 is positioned inside the centering rod 5 and is fixed with the centering rod 5, and when the worm 244 is meshed with the worm wheel 243, the worm wheel 243 can be driven to rotate through the worm 244, so that the drive bevel gear 241 can be rotated. The driven bevel gear 242 is rotatably installed at the outside of the centering rod 5, and the axis of the driven bevel gear 242 coincides with the axis of the centering rod 5. A frame 246 is fixedly arranged between the two adjusting plates 23, and the frame 246 is fixed with the driven bevel gear 242, so that the driven bevel gear 242 can drive the two adjusting plates 23 to rotate when rotating, and further the adjusting plates 23 drive the supporting legs 22 to stretch and retract relative to the main body 21. Because worm 244 and worm wheel 243 can auto-lock, make supporting leg 22 and pipeline unit section 1 inner wall butt back, can make centering device 2 fix on pipeline unit section 1, simultaneously the fixed knob 247 that is provided with in one end of worm 244, conveniently rotate worm 244, because worm 244 is on a parallel with centering rod 5, make knob 247 can set up in centering rod 5 be in the outside position of main part 21, when centering device 2 installs the tip of pipeline unit section 1, knob 247 is close to the tip of pipeline unit section 1, convenient operation.
Referring to fig. 3, an unlocking block 6 is slidably coupled inside the centering rod 5, a sliding direction of the unlocking block 6 with respect to the centering rod 5 is perpendicular to an axis of the centering rod 5, and a worm 244 is rotatably coupled to the unlocking block 6, the worm 244 being adapted to be disengaged or engaged from the worm wheel 243 when the unlocking block 6 slides with respect to the centering rod 5. When the worm 244 is separated from the worm gear 243, the worm 244 is locked to the worm gear 243, so that the worm gear 243 can release the support legs 22, and the support legs 22 are separated from the inner wall of the pipe unit section 1, thereby facilitating the removal of the centering device 2 from the pipe unit section 1. A spring 61 is fixedly provided on the unlocking block 6, one end of the spring 61 abuts against an inner wall of the centering rod 5, the other end abuts against the unlocking block 6, and a longitudinal direction of the spring 61 is along a sliding direction of the centering rod 5 and an elastic force of the spring 61 is used to drive the worm 244 to be disengaged from the worm wheel 243. When the centering device 2 is installed, the worm 244 is firstly kept to be separated from the worm wheel 243, and at the moment, the adjusting disc 23 is directly stirred by hands, so that the length of the supporting leg 22 can quickly reach a position close to the inner wall of the pipeline unit section 1, the worm 244 is meshed with the worm wheel 243 after the centering device 2 is taken out, the worm 244 is rotated by rotating the knob 247, and the supporting leg 22 is more convenient to operate.
Referring to fig. 3, a pull rope 71 is provided along the length direction of the centering rod 5, one end of the pull rope 71 is used for extending out of the pipe unit section 1, a bolt 72 is fixedly connected to the pull rope 71, a fixed block 73 is fixedly provided in the centering rod 5, an insertion hole 74 is formed in the fixed block 73, the bolt 72 is used for being inserted into the insertion hole 74, the fixed block 73 is arranged close to the unlocking block 6, a positioning hole is formed in the surface of the unlocking block 6 opposite to the fixed block 73, and after the bolt 72 penetrates through the insertion hole 74 and is inserted into the positioning hole, the bolt 72 can lock the position of the unlocking block 6 and the position of the fixed block 73 and is positioned at a position where a worm 244 is meshed with a worm gear 243. In operation, the worm 244 is pressed by the knob 247, so that the unlocking block 6 presses the spring 61, the positioning hole corresponds to the position of the insertion hole 74, and the unlocking block 6 is fixed by the latch 72. Because the pull rope 71 is connected with the plug 72, when the two pipeline unit sections 1 are installed, the pull rope 71 is pulled from one end of the pipeline unit section 1, so that the plug 72 can be separated from the positioning hole, and the spring 61 pushes the unlocking block 6 to move, so that the worm 244 is separated from the worm wheel 243.
Referring to fig. 4, the centering bars 5 in the two centering devices 2 are different in diameter, and one centering bar 5 is of a hollow structure such that the outer diameter of the other centering bar 5 is equal to the inner diameter of the centering bar 5 of the hollow pair. When the centering device 2 is installed in two pipe unit sections 1, the ends of the two centering bars 5 that cooperate with each other should be oriented opposite each other and the ends of the two centering bars 5 each extend beyond the end surfaces of the pipe unit sections 1 that are connected to each other. When the centering device 2 in the two pipeline unit sections 1 is installed to guide the center lines of the two pipeline unit sections 1 to coincide with each other, the end parts of the two centering rods 5 are contacted with each other in advance than the end parts of the two pipeline unit sections 1, and then one centering rod 5 is inserted into the other centering rod 5, the end parts of the centering rods 5 with smaller diameters can be provided with chamfers 51, and when the two centering rods 5 are matched, the center lines of the two pipeline unit sections 1 can coincide with each other. The inner diameter of the bell mouth of the pipe unit sections 1 is not equal to the inner diameter of the spigot for the sealing ring 3 arranged between the inner wall of the bell mouth and the outer wall of the spigot in the two pipe unit sections 1, so that the central lines of the two pipe unit sections 1 cannot be directly spliced with each other in a coincident state during installation. The pull ropes 71 in the two centering devices 2 are quickly connected through joints, and the joints can adopt the structure of two climbing buckles or bolts and sleeves. Wherein the pull rope 71 in the centering device 2 fixed at one end of the socket of the pipe unit section 1 is fixed to the centering rod 5, and the pull rope 71 in the centering device 2 located at one end of the socket of the pipe unit section 1 penetrates the centering rod 5 and protrudes from the other end of the pipe unit section 1. After the insertion opening of the pipe unit section 1 is inserted into the seal ring 3, the pull rope 71 is directly pulled from one end of the pull rope 71 leaked from the pipe unit section 1, and the two centering devices 2 are simultaneously pulled out from the pipe unit section 1.
Referring to fig. 5 and 6, the anti-falling device 4 is provided with a plurality of anti-falling devices along the circumference of the pipe unit section 1, the anti-falling device 4 comprises an L-shaped piece 41 and a connecting bolt 42, an outer edge 81 is provided on the outer wall of one end of the socket of the pipe unit section 1, an inner edge 82 is provided on the inner wall of one end of the socket of the pipe unit section 1, the outer diameter of the sealing ring 3 is larger than the inner diameter of the inner edge 82, and the sealing ring 3 is mounted on one side of the inner edge 82 close to the middle section of the pipe unit section 1, so that the inner edge 82 can limit the sealing ring 3 to fall off from the pipe unit section 1. Meanwhile, one end of the L-shaped piece 41 is inserted into a position abutting against the outer edge 81 from a gap position between the inner edge 82 and the pipeline unit section 1, the outer wall of the outer edge 81 is matched with the inner wall of the sealing ring 3, the other end of the L-shaped piece 41 is rotatably provided with the connecting bolt 42, the connecting bolt 42 can be provided with the baffle ring 43, the baffle ring 43 and a nut of the connecting bolt 42 are positioned on two side surfaces of the L-shaped piece 41 to clamp the L-shaped piece 41, the connecting bolt 42 is connected with the end part of a socket of the pipeline unit section 1 in a threaded mode, and then the two pipeline unit sections 1 can be prevented from being separated from each other through the L-shaped piece 41. After the angle of two pipeline unit sections 1 is adjusted to enable the two pipeline unit sections 1 to meet the running direction of pipeline laying, the connected anti-falling device 4 can fix the angle of the two pipeline unit sections 1 through the connecting depth of the connecting bolt 42, so that the problem that one pipeline unit section 1 generates an oversized corner after the pipeline unit sections 1 are accumulated due to the deflection angle in the use process is reduced, sealing cannot be guaranteed, and leakage occurs. When the connecting bolt 42 is installed, the L-shaped piece 41 can be abutted on the outer edge 81, then the connecting bolt 42 is reversely loosened for 1-3 circles according to the ambient temperature during construction, and the number of the loosened circles is larger than that of the loosened circles when the temperature is high, so that the pipeline unit section 1 can have enough space for expanding with heat and contracting with cold.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. The utility model provides a municipal drainage pipeline construction method, includes installing sealing washer (3) in the bellmouth of a pipeline unit festival (1), its characterized in that: the centering device is characterized by further comprising that a centering device (2) is respectively arranged at the butted end parts of the two pipeline unit sections (1), the centering device (2) comprises centering rods (5), the centering rods (5) in one centering device (2) are of hollow structures, the inner diameter of each centering rod (5) of each hollow structure is equal to the outer diameter of the other centering rod (5), when the centering device (2) is arranged, the centering device (2) is fixed on the inner wall of the pipeline unit section (1), the center of each centering rod (5) coincides with the center of the pipeline unit section (1), and meanwhile, the end parts of the centering rods (5) are beyond the end faces of the pipeline unit sections (1); then when the two pipeline unit sections (1) are mutually close, the end parts of the two centering rods (5) are mutually spliced and matched before the end parts of the two pipeline unit sections (1); finally, two pipeline unit sections (1) are extruded and connected in a sealing way;
the centering device (2) further comprises a main body (21), supporting legs (22) and an adjusting disc (23), wherein the centering rod (5) is fixed at the center of the main body (21), the supporting legs (22) are arranged in a plurality along the circumference of the main body (21), the supporting legs (22) are in sliding fit with the main body (21), the adjusting disc (23) is rotationally connected to the main body (21) and the adjusting disc (23) coincides with the center of the main body (21), a plurality of arc grooves (231) are formed in the adjusting disc (23), one arc groove (231) corresponds to one supporting leg (22), a driving rod (25) is installed on the supporting leg (22), and the driving rod (25) is inserted into the arc groove (231), and one end to the other end of the arc groove (231) gradually extends from the center of the adjusting disc (23) to the edge of the adjusting disc (23); the adjusting disc (23) is connected with a driving component (24);
the driving assembly (24) comprises a driving bevel gear (241), a driven bevel gear (242), a worm wheel (243) and a worm (244), wherein the driven bevel gear (242) is fixedly connected with the adjusting disc (23) coaxially, the driving bevel gear (241) is fixedly connected with the worm wheel (243) coaxially and rotatably on the centering rod (5), the worm (244) is arranged on the centering rod (5) and is used for being meshed with the worm wheel (243), a knob (247) is coaxially arranged on the worm (244), and the knob (247) extends out from one end, located outside the main body (21), of the centering rod (5);
an unlocking block (6) is arranged in the centering rod (5), the unlocking block (6) is in sliding fit on the centering rod (5) and the sliding direction is perpendicular to the worm (244), the worm (244) is rotatably arranged on the unlocking block (6), a fixing block (73) is fixedly arranged in the centering rod (5), a bolt (72) is arranged on the fixing block (73) in a sliding mode, the bolt (72) is used for connecting the fixing block (73) and the unlocking block (6), a spring (61) is connected to the unlocking block (6), and the acting force of the spring (61) is used for driving the worm (244) to be far away from a worm wheel (243);
a pull rope (71) is arranged in the centering rod (5), the pull rope (71) arranged in the centering rod (5) at the socket of the pipeline unit section (1) is fixedly connected with the centering rod (5), the two pull ropes (71) are detachably connected, a bolt (72) is fixed on the pull rope (71), and the pull rope (71) arranged in the centering rod (5) at the socket of the pipeline unit section (1) extends out from the other end of the pipeline unit section (1);
when the centering device (2) is installed, the worm (244) and the worm wheel (243) are kept in a loosening state, the adjusting disc (23) is manually shifted, and when the adjusting disc (23) drives the supporting leg (22) to be close to the inner wall of the pipeline unit section (1), the worm (244) is meshed with the worm wheel (243) through the bolt (72);
during operation, the worm (244) is extruded through the position of the knob (247), the unlocking block (6) extrudes the spring (61), so that the positioning hole corresponds to the position of the jack (74), the unlocking block (6) is fixed through the bolt (72), and as the stay cord (71) is connected with the bolt (72), after two pipeline unit sections (1) are installed, the stay cord (71) is pulled from one end of the pipeline unit section (1), the bolt (72) can be separated from the positioning hole, and the spring (61) pushes the unlocking block (6) to move, so that the worm (244) is separated from the worm wheel (243).
2. The municipal drainage pipeline construction method according to claim 1, wherein the method comprises the following steps of: an inner edge (82) is arranged on the inner wall of one end of the socket of the pipeline unit section (1), and the sealing ring (3) is arranged on one side, close to the middle section of the pipeline unit section (1), of the inner edge (82).
3. The municipal drainage pipeline construction method according to claim 2, wherein the method comprises the following steps of: the outer edge (81) is arranged on the outer wall of one end of the socket of the pipeline unit section (1), a plurality of anti-falling devices (4) are arranged in the circumferential direction of the pipeline unit section (1), after the two pipeline unit sections (1) are connected in an extrusion sealing mode, the angles of the two pipeline unit sections (1) need to be adjusted, the anti-falling devices (4) are installed along the circumferential direction of the pipeline unit sections (1), and the anti-falling devices (4) are abutted to the outer edge (81).
4. A municipal drainage pipe construction method according to claim 3, wherein: the anti-falling device (4) comprises an L-shaped piece (41) and a connecting bolt (42), one side of the L-shaped piece (41) is inserted into a gap between the inner edge (82) and the pipe unit section (1), the connecting bolt (42) is rotatably installed at the other end, and the connecting bolt (42) is in threaded connection with the end face of one end of the socket of the pipe unit section (1).
5. The municipal drainage pipeline construction method according to claim 4, wherein the method comprises the following steps of: when the connecting bolt (42) is installed, the L-shaped piece (41) is abutted against the outer edge (81) firstly, and then the connecting bolt (42) is reversely loosened for 1-3 circles according to the environment temperature during construction.
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| CN216692423U (en) * | 2022-02-19 | 2022-06-07 | 广西北投环保水务集团有限公司 | PCCP pipeline quick centering installation device |
| CN115653067A (en) * | 2022-10-15 | 2023-01-31 | 广东华正建设工程有限公司 | Prevent blockking up municipal drainage system |
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2023
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| EP0462527A1 (en) * | 1990-06-21 | 1991-12-27 | Hermann Hemscheidt Maschinenfabrik GmbH & Co. | Method for inserting and aligning the connection pipes of a liner in a conduit and apparatus for carrying out such method |
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| CA2929579A1 (en) * | 2016-05-09 | 2017-11-09 | Patrick George Curran | Pex needle |
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| CN116254907A (en) | 2023-06-13 |
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