Classifications

• • 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
• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • E21B7/00—Special methods or apparatus for drilling
  • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
  • E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
• • 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
  • F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
  • F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
• • 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
  • F16L21/00—Joints with sleeve or socket
  • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
  • F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
• • 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
  • F16L37/00—Couplings of the quick-acting type
  • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
  • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking

Definitions

• the invention relates to a jacking pipe, in particular made of plastic, which has - an inner and an outer wall,
• a jacking pipe of the type mentioned is known from DE 94 17 423 UI of the applicant. It is designed as an inliner tube and has an insertion and a pointed end.
• the tip end has at least one step tip element on its outer wall, on which a sealing element is placed, and has in its inner wall a sealing chamber into which a flexible ring sealing element is inserted.
• the insertion end has an inner tube extension.
• the inner tube extension is provided with a sealing chamber in which an annular sealing element is inserted.
• jacking pipes made of polymeric materials are known. They have a lockable, rubber-sealed push-in sleeve that can be axially subjected to pressure and tension.
• the pipe connection is in the pipe wall.
• jacking pipes which are made of PVC-U without plasticizers and have a pointed and an inserted end.
• Two sealing chambers are arranged in the tip end, into each of which an annular seal can be inserted.
• inserting the tip end into the insertion end only creates a liquid-tight connection that is detachable and can lead to leaks.
• the advantages achieved by the invention are, in particular, that a locking sleeve is created when the tip end is inserted into the insertion end.
• the locking sleeve ensures a positive connection between jacking pipes. Pressure and tensile loads arising when the jacking pipes are laid are absorbed in such a way that the jacking pipes cannot come apart. A liquid density of the jacking pipes is also ensured.
• the sliding block can also be provided with a sliding plane.
• the sliding plane can be slidable on the sliding surface in such a way that the second plug-in contact recess can be lifted with its sealing press surface over the ring sealing element. This prevents damage to the ring sealing element when pushing together two jacking pipes.
• Pushing together is facilitated if the sliding plane of the sliding block is at least partially beveled.
• the sliding block can be snapped into the sliding recess and its sliding end face can be placed against the sliding end face of the sliding recess. This ensures that the forces during driving are mainly taken over by these two sliding end faces.
• a circumferential anchoring recess can be arranged in front of the sliding block in the first insertion recess starting from the inner wall, and a circumferential anchoring block with an at least partially bevelled sliding surface can be arranged on the second tip-end recess emanating from the outer wall.
• the anchoring recess and the anchoring block are compatible with one another and cause a further locking of two jacking pipes with one another.
• Contact recess lying sealing press surface of the second tip-end contact recess can form such a sealing chamber with the sealing receiving recess introduced into the receiving surface that the ring sealing element can be pressed therein. This improves the sealing behavior of the jacking pipes connected to one another.
• the seal receiving recess can be designed as a seal receiving groove with a semicircular cross section.
• the seal receiving groove can also have a semi-ellipsoidal, triangular, square or other polygonal cross section. The formation of the cross section ensures a liquid-tight pressing of the ring sealing element.
• the ring sealing element has a round cross section, particularly in the case of a semicircular cross section of the seal receiving groove, so that effective pressing is ensured.
• the ring sealing element can consist of an elastomer, in particular a rubber or a plastic, which has a Shore A hardness between 50 and 60.
• the corners of the stop recesses can be at least partially rounded. This makes it easier to connect two jacking pipes together.
• FIG. 2 shows a detail All according to FIG. 1 with two jacking pipes connected to one another in a schematic, perspective illustration
• Figure 4 shows an insertion and a spigot end of two jacking pipes to be connected to one another in a further embodiment in a schematic sectional partial illustration
• Fig. 5 shows an enlarged section of a
• FIG. 6 shows a push-in and a spigot end of two jacking pipes to be connected to one another in a further embodiment, shown during the connection process in a schematic sectional partial representation
• Fig. 7 shows the insertion or pointed end of the jacking pipes from Fig. 6, shown after the connection has been made in a schematic sectional partial view.
• Pipelines are usually laid in trenches or below the surface in bores. In certain cases it is a It is not possible to excavate installation channels, e.g. when crossing busy streets, busy squares or buildings. In such cases, as shown in FIG. 1, a vertical shaft 7 is driven into the soil 6. From the shaft bottom, 8 jacking pipes 1, 2, 3 are driven and laid using a jacking pipe laying device 50 below the surface of the earth.
• the jacking pipes 1, 2, 3 are made of plastic, in particular a hard PVC. They have a wall thickness that corresponds to the pipe diameter. Your delivery lengths from the pointed end to the insertion end can be 0.7 m, 1 m, 1.20 m, 1.50 m or have the length that is necessary for laying the jacking pipes.
• the jacking pipe laying device 50 used for laying consists of an energy center 51, on which storage units 52 are arranged.
• the storage units 52 can be reached with the aid of a conductor 53.
• the energy center is connected to a propulsion unit 57 via lines 54.
• the propulsion unit 57 has a tubular screw 58 which drives a hole into the ground 6.
• the earth masses generated during drilling are transported to the storage units 152 via the pipelines 54 and the energy center 51 and stored there temporarily.
• the control center 56 is surrounded by a wheelhouse 55, which is connected to a lifting tool 50.
• a jacking pipe stack 5 is placed on the earth's surface 8. With the aid of the lifting device, a jacking pipe 4 is prepared for laying for lowering into the shaft 7.
• each jacking pipe has, as here the jacking pipe 1, an insertion end 11; the associated counterpart, the jacking pipe 2, has a compatible tip end 20.
• the push-in and tip ends of each jacking pipe 1, 2 are arranged at their opposite ends.
• the plug-in contact recess 15 is L-shaped from an inner wall 110 of the jacking pipe 1. It is slightly rounded at the angle point to form a fillet.
• a circumferential anchoring recess 18 is made in it, which has an essentially rectangular cross section. Towards the insertion end, a sliding block 14 adjoins the anchoring recess 18 and has an essentially rectangular cross section. Its downward sliding plane 16 is aligned with a partial length of the insertion contact recess 15.
• a second insertion contact recess 19 adjoins the first insertion contact recess 15 in the direction of the insertion end. It is also L-shaped and lies further outside than the first insertion system recess 15. Its one L-leg is formed by a radially extending sliding end face 14 'of the sliding block 14.
• a second surface of the insertion contact recess 19 is referred to as a sealing press surface 13. This merges at right angles into a radially extending stop surface 12. The transition from the sealing press surface 13 to the stop surface 12 is rounded via a fillet.
• Compatible elements are provided at the tip end 20. Starting from an outer wall 20, the first tip-end contact recess 22 is delimited by a contact surface 22 'and a receiving surface 23. In the corner corner, the tip end stop recess 22 is rounded by a fillet.
• a semicircular seal receiving groove 30 is introduced into its receiving surface 23.
• the second tip end contact recess 29 is delimited by a sliding surface 25 and a stop surface 29 '.
• An anchoring block 24 protrudes outward from the stop surface 29 '. It has a sliding surface 26 which is divided in two into a sliding bevel 46.1 inclined by approximately 45 ° and an adjoining sliding plane 26.2.
• the sliding plane 26.2 merges into a radially directed anchoring surface 27, which is part of a groove-like sliding recess 28.
• the jacking pipe 1, jacking pipe 2 and jacking pipe 3 are successively inserted into the bore created by auger 58 (see FIG. 1).
• the plug-in end 11 and the tip end 20 lie opposite one another when the jacking pipes 1, 2 are not connected.
• the sliding block 14 moves towards the anchoring block 24.
• the sliding bevel 26.1 Due to the inclination of the sliding slope, it reaches the sliding plane 26.2 with its sliding plane 16.
• the sealing press surface 13 is raised to such an extent that it Sealing element 31 with a round cross-section, which is inserted into the sealing receiving groove 30, not only does not damage it, but slides over it without pressing it out of the sealing receiving groove 30. This sliding is facilitated by the rounded edge between the stop surface 12 and the sealing press surface 13.
• the sliding block 14 slides from the anchoring block 26 into the sliding recess 28 in front of it (cf. FIG. 3c).
• the insertion end 11 and the tip end 20 assume their original dimensions.
• the sealing press surface 13 lies non-positively on the receiving surface. This creates a sealing chamber 32 in which the ring sealing element 31 lies pressed through the sealing press surface 13.
• the interconnected jacking pipes 1, 2 and 3 are driven further through the hole created by the auger 58, within the existing locking sleeves in particular the mutually adjacent sliding end faces 14 'and 25 absorb the jacking forces. Because the system recesses 15, 19, 22, 29 are compatible with one another, they also absorb propulsive forces. This ensures that when driving the
• Jacking pipes the forces are transmitted so that no relative movement of the jacking pipes 1, 2, 3 m of the Ver ⁇ ege- sleeve is possible. Pulling apart of the jacking pipes is also prevented by the sliding block 26 pressed in the sliding recess 28. Damage to the ring sealing element 31 is hereby excluded. The pressing of the ring sealing element 31 in the sealing chamber 32 also ensures an improvement in the liquid-tight connection of the jacking pipes 1, 2, 3 to one another.
• FIGS. 4 and 5 show a second embodiment of an insertion end and a spike end of two jacking pipes 61 and 62 to be connected to one another.
• the jacking tube 61 has an insertion end 71 and the jacking tube 62 has a spigot end 80 with an annular sealing element 91.
• the spigot end and spigot end both have two mutually compatible contact recesses 75, 79 and 82, 89 and form a locking sleeve in the assembled state.
• the first insertion contact recess 75 forms a radial shoulder, which starts from an inner wall 310 of the jacking pipe 71. It forms a fillet at the angle point.
• An at least partially circumferential sliding block 74 is arranged on it and carries a sliding surface 76.
• the second insertion contact recess 19 adjoining the first insertion contact recess 15 is delimited by a sliding end face 74 'of the sliding block 74 and a sealing press surface 73. It also has a fillet at the angle point.
• the sealing press surface 73 merges via a bevel 73.1 inclined by 30 ° into a stop surface 72 lying at right angles to it.
• the first tip-end contact recess 82 forms a radial closure of an outer wall 410 of the jacking pipe 62. It is delimited by a stop surface 82 'and a receiving surface 83, which have a fillet between them.
• a sealing receiving groove 90 is introduced into the receiving surface 82. It has a rectangular cross section.
• a round sealing ring 91 is inserted into the seal receiving groove 90.
• the tip end contact recess 89 has a sliding surface 86, into which a sliding recess 88 with an anchoring surface 87 is made.
• the sliding surface 86 is thus subdivided in front of the sliding recess 88 into a sliding plane 86.2 which merges into a sliding bevel 86.1 inclined by a sliding angle.
• the glide angle is about 20 °.
• the jacking pipes 61, 62 are made of plastic and have a wall thickness that is appropriate for the respective pipe diameter.
• the laying of the jacking pipes 61, 62 is similar to the laying of the jacking pipes 1, 2, ....
• Pushing the insertion end 71 onto the opposite tip end 20 is facilitated by the bevel 73.1 of the sealing press surface 73, since this meets the slide bevel 86.1 when the pipe ends are canted. Both slopes ensure that the free end of the tip end of the insertion end 11 can be received in the correct position.
• the sliding block 74 with the rounded end of its sliding plane 76 is pushed onto the sliding bevel 86.1.
• the elasticity of the tube material enables the sliding block 74 with its sliding surface 76 to be pressed onto the sliding slope 86.2.
• the receiving surface 83.1 is raised so far that it is above the tion receiving groove 90 inserted sealing element 91 is. If pushed further, the ring sealing element is not damaged; the receiving surface 83.1 slides over it without pushing it out of the sealing receiving groove 90.
• the bevel 73.1 present on the sealing press surface 73 facilitates the corresponding deformation of the ring sealing element 91.
• the sliding block 74 slides into the sliding recess 88.
• the sliding end face 74 'rests on the sliding end face 85 and prevents the two jacking pipes from being pushed further into one another.
• the sealing press surface 73 lies flush on the receiving surface 83 and forms with the seal receiving groove 90 a sealing chamber 92 in which the sealing ring 91 is pressed.
• the compression of the sealing ring 91 in the sealing chamber 92 ensures the high tightness of the locking sleeve formed in this way.
• the sliding block 74 anchored in the sliding recess 88 ensures that the two jacking pipes 61, 62 are locked together.
• the adjoining sliding end faces 74 ', 85 ensure that the two jacking pipes 61, 62 can be advanced in a pipe assembly so that there is no damage and impairment of the liquid-tight
• FIGS. 6 and 7 show details of a further locking device for connecting two jacking pipes 101 and 102.
• each jacking pipe like jacking pipe 101 here, has an insertion end 111; the associated counterpart, the jacking pipe 102, has a compatible tip end 120.
• the plug-in and the tip end of each jacking pipe 101, 102 are arranged at their opposite ends.
• the insertion system recess 119 is L-shaped from an inner wall 210 of the jacking pipe 10. It is slightly rounded at the angle point to form a fillet.
• a circumferential anchoring recess 118 is made in it, which has an essentially rectangular cross section.
• a sliding block 114 adjoins the anchoring recess 118 and has an essentially desk-like cross section. Its slanted sliding plane 116 is used to drive onto a compatible sliding plane 126 of the tip end.
• a second insertion contact recess 115 adjoins the first insertion contact recess 119 in the direction of the insertion end. It is also L-shaped and lies further outside than the first insertion contact recess 119. It is delimited by the sliding block 114.
• a second surface of the insertion contact recess 115 is referred to as a sealing press surface 113. This merges at right angles into a radially extending stop surface 112. The transition from the sealing press surface 113 to the stop surface 112 is rounded by a fillet.
• the tip end 120 is delimited by a contact surface 122 'and a receiving surface 123.
• the tip end stop recess 122 is rounded by a groove.
• a sealing receiving groove 130 with a rectangular cross section is introduced into its receiving surface 123.
• a sealing ring 31 is inserted here.
• the second tip end contact recess 129 is through a
• the anchor block 124 projects outwardly and has the sliding surface 126, which ge in an inclined by about 45 ° Gleitschrä ⁇ 126.1 and an adjoining sliding plane 126.2 is divided into two parts.
• the sliding plane 126.2 merges into a radially directed anchoring surface 127.
• Anchoring block 124 In the lower region of its rounded sliding end face 114 ', it rests on the sliding bevel 126.1. Due to the inclination of the sliding bevel, it reaches the sliding plane 126.2 with its sliding plane 116. This upwardly sliding is possible with the corresponding driving force and un ⁇ ter utilizing the elasticity of the material of the propulsion tube. It is essential that in a position of the insertion end 111 in relation to the tip end 120 (cf. FIG.
• the sealing press surface 113 is raised so far that it has a sealing ring 131 with a round cross section, which is inserted into the seal receiving groove 130, not only not damaged, but slides over it without pushing it out of the seal receiving groove 130. This sliding over is facilitated by the rounded edge between the stop surface 112 and the sealing press surface 113.
• the finished connection of two jacking pipes 101, 102 is shown in FIG. 7.
• the anchoring block 124 of the insertion end 111 lies in the compatible insertion contact recess 119 of the tip end 102 and the sliding block 114 in the tip end contact recess 129.
• the sealing press surface 113 which is raised during the establishment of the connection (see FIG. 6), is lowered and lies on the receiving surface 123.
• the ring sealing element 131 which is supported in the seal receiving groove 130 and which projects above the receiving surface 123 in the undeformed state, is compressed by the sealing pressing surface 113. Due to the restoring force of the permanently elastic ring sealing element 131, a liquid-tight connection is brought about here.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Mechanical Engineering (AREA)
• Mining & Mineral Resources (AREA)
• Geology (AREA)
• Geochemistry & Mineralogy (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Environmental & Geological Engineering (AREA)
• Health & Medical Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Excavating Of Shafts Or Tunnels (AREA)
• Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7820367

Family Applications (1)

Country Status (6)

Families Citing this family (3)

Citations (4)

Family Cites Families (4)

• 1997
  • 1997-02-15 DE DE19705857A patent/DE19705857C2/de not_active Expired - Fee Related
• 1998
  • 1998-02-04 PL PL98329388A patent/PL329388A1/xx unknown
  • 1998-02-04 EP EP98905401A patent/EP0892902A1/de not_active Withdrawn
  • 1998-02-04 CZ CZ983280A patent/CZ328098A3/cs unknown
  • 1998-02-04 WO PCT/EP1998/000603 patent/WO1998036206A1/de not_active Application Discontinuation
• 2003
  • 2003-02-21 AT AT0011003U patent/AT7376U1/de not_active IP Right Cessation

Patent Citations (4)

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