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EP0795653A2 - Dispositif pour tenir un obturateur - Google Patents

Dispositif pour tenir un obturateur Download PDF

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Publication number
EP0795653A2
EP0795653A2 EP97104236A EP97104236A EP0795653A2 EP 0795653 A2 EP0795653 A2 EP 0795653A2 EP 97104236 A EP97104236 A EP 97104236A EP 97104236 A EP97104236 A EP 97104236A EP 0795653 A2 EP0795653 A2 EP 0795653A2
Authority
EP
European Patent Office
Prior art keywords
support
protection against
strut
pressure
against displacement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97104236A
Other languages
German (de)
English (en)
Other versions
EP0795653A3 (fr
Inventor
Erhard Beck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0795653A2 publication Critical patent/EP0795653A2/fr
Publication of EP0795653A3 publication Critical patent/EP0795653A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/02—Shut-off devices

Definitions

  • the invention relates to a displacement lock for sheeting devices on pipe closures during a leak test or shut-off in the inspection shaft of sewers and pipes with frictionally adhering to the wall of the pipe to be closed and pressure pieces applied to the pipe closure.
  • a shoring device of the above-mentioned type in which two pressure rods are provided which are articulated at the ends and which can be expanded by means of a spreading device, at the free ends of which pressure pieces can be placed on the pipe closure and pressed radially against the inner wall of the pipe are provided.
  • the latter are in frictional engagement with the inner wall of the pipe in order to absorb the axial pressure exerted on the pipe closure during pressure tests.
  • the radial pressure against the pipe wall by the pressure rods for generating the frictional connection can, however, only be increased to a limited extent in order to withstand the high axial pressures required, not least because the inner wall of the pipe could be damaged by high pressures.
  • the aim is to keep the inner wall of the tube as smooth as possible in order to keep the flow resistance of the liquid flowing through and the pollution caused by dirt systems on the inner wall as low as possible. For this reason, eddy-producing edges are also rounded off. Furthermore, the holding force of the pressure pieces is further impaired by smooth and / or slippery tube walls. There is thus, especially with large pipe diameters, the risk that the pipe closure with the mounting device moves axially towards the pipe end, which has a negative effect, if not negates, on the leak test. For example, with a pipe diameter of 800 mm and a test pressure of 0.5 bar, there is an axial load of 2,512 kg. For this reason, it is expedient and also mandatory for safety reasons to arrange an additional movement lock.
  • the object of the invention is therefore to provide a displacement lock which is simple in construction and handling and which reliably precludes an axial displacement of the pipe closure and the installation device.
  • the advantages achieved by the invention are, in particular, that the axial forces generated by the pipe closure are directed in the longitudinal axis of the installation device to the strut which serves to prevent displacement.
  • This is supported at two points in a plane lying in the longitudinal axis and on both sides of the longitudinal axis in a stationary manner on the inspection shaft.
  • This creates an unrelenting connection between the implement and the control shaft, through which much higher axial forces can be absorbed than before.
  • the support at two points on the inspection shaft creates a stable triangle of forces, which ensures the safe transmission of the forces.
  • the strut is simple in construction, since it only requires two struts to be attached to the support points, which enables simple and appropriate handling even in a narrow inspection shaft.
  • the strut according to the invention can be used universally for larger pipe sizes, in particular for pipes with a nominal width of more than 600 mm, in order to ensure safety and test accuracy during pressure tests or for general pipe shut-offs, and can also be easily connected to existing shoring devices.
  • Locking devices are required to prevent the axial displacement of a pipe closure in sewers and pipes during a pressure test or pipe shutoff.
  • the tube closure 1 which consists of an air bubble, is installed in a control shaft 2 in the end of the tube 3 which opens out.
  • a shoring device 4 is provided which has two pressure rods 6 which are articulated at one end on a joint piece 5. This can be done by a spreading device 7 can be moved against the wall of the tube 3, as a result of which pressure pieces 8 arranged on the free ends of the pressure rods 6 engage both frictionally on the inner wall of the tube and in a form-fitting manner on the end face of the tube closure 1.
  • a strut 9 is provided according to the invention as a means of preventing movement, as is shown in particular in FIG. 3.
  • This strut 9 is pivotally connected to a bearing piece 10 by a socket pin 11 with the joint piece 5 of the implement 4.
  • a downwardly projecting and designed as a hollow profile support 14 is articulated.
  • a support profile 15 is inserted into the free end of the support 14, which carries at the protruding end a widened support plate 16 which can be placed on the bottom 2 'of the inspection shaft 2 and is adjustable in length by means of a plug 18 inserted through through holes 17.
  • a pressure strut 20 is pivotally mounted, which is also telescopically adjustable in length.
  • a pressure profile 21 is also inserted into the hollow profile thereof and can be locked in stages by a plug 23 inserted into through bores 22.
  • the pressure strut 20 is expediently designed as a double telescope, for coarse and fine adjustment.
  • the pressure profile 21 is used for rough adjustment and a threaded rod 24 pushed into the pressure profile 21 designed as a hollow profile is used for fine adjustment.
  • An adjusting nut 25 which can be actuated by means of a handle is screwed onto it and adjusts to the end face of the pressure profile for length adjustment 21 creates, so that the threaded rod 24 can be continuously adjusted in both directions of movement.
  • the threaded rod 24 carries a pressure plate 26, which is designed to rest against the end edge of the connecting pipe 27 opposite the blocked pipe 3 as an angle profile. To adapt to the respective contact surface, the pressure plate 26 is articulated on the threaded rod 24 by means of a bolt 28.
  • both supports 14 and 20 are designed and mounted in the double bearing 12 in such a way that they can be folded parallel to the longitudinal axis 29 of the strut 9, as indicated by dash-dotted lines in FIG. 3.
  • the support 14 and the pressure strut 20 could also be rotated by 90 ° relative to the illustration in FIG. 3, that is to say horizontally, on the bearing piece 10.
  • both supports 14 and 20 would have to be of the same type, e.g. like the support 14, but with articulated support plates 16, so that they can be supported on both sides of the connecting pipe 27 on the inner wall of the inspection shaft 2.
  • both supports 14 and 20 would then have to be designed as a double telescope.
  • the support 14 could also be designed like the pressure strut 20, so that both supports 14 and 20 can be supported approximately in a horizontal position on the end edge of the connecting pipe 27.
  • the strut 9 is always supported in a stationary manner at two points on the inspection shaft 2 opposite the installation device 4. These points are located in a plane lying in the longitudinal axis 29 and on both sides of the longitudinal axis 29 on the inspection shaft 2, that is to say either on its base 2 ′ and on the opposite side of the shoring device 4 Manhole wall or the front edge of the connecting pipe 27 or, for example approximately horizontally, on both sides of the connecting pipe 27 on the shaft wall.
  • the strut 9 can be easily built up and just as easily dismantled by unfolding the support 14 and the pressure strut 20, and in the folded state it can be transported and stored in a space-saving manner.
  • the adjustment to different pipe diameters can also be carried out simply by adjusting the length of the support 14 and the pressure strut 20. Regardless of the installation and the embodiment of the strut 9, a rigid support to the shoring device 4 is always achieved, which reliably precludes an axial displacement of the pipe closure 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Pipe Accessories (AREA)
  • Sewage (AREA)
EP97104236A 1996-03-16 1997-03-13 Dispositif pour tenir un obturateur Withdrawn EP0795653A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996110434 DE19610434C2 (de) 1996-03-16 1996-03-16 Verbaugerät mit Verschiebesicherung für Rohrverschlüsse
DE19610434 1996-03-16

Publications (2)

Publication Number Publication Date
EP0795653A2 true EP0795653A2 (fr) 1997-09-17
EP0795653A3 EP0795653A3 (fr) 1998-07-01

Family

ID=7788529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104236A Withdrawn EP0795653A3 (fr) 1996-03-16 1997-03-13 Dispositif pour tenir un obturateur

Country Status (2)

Country Link
EP (1) EP0795653A3 (fr)
DE (1) DE19610434C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804742A1 (fr) * 2000-02-08 2001-08-10 Sogemap Injection Dispositif d'obturation pour boitier de connexion de conduites
EP1278003A2 (fr) * 2001-07-12 2003-01-22 Berliner Wasserbetriebe Anstalt des öffentlichen Rechts Dispositif pour fixer un élément d'obturation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3042841B1 (fr) * 2015-10-27 2018-04-20 Pierre Parpagiola Dispositif d'obturation securisee d'une conduite d'un reseau d'ecoulement gravitaire d'un liquide

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8528754U1 (de) * 1985-10-09 1985-11-14 Wohlgemuth, Werner, 5828 Ennepetal Vorrichtung zum Verschließen von Gebäudeöffnungen
DE29604927U1 (de) * 1996-03-16 1996-05-23 Mauersberger, Dietmar, Dipl.-Ing., 09419 Thum Vorrichtung zum Arretieren von Absperreinrichtungen, insbesondere von Absperrblasen, bei der Dichtheitsprüfung von erdverlegten Kanälen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US692179A (en) * 1901-06-11 1902-01-28 Matthew Henry Callahan Building-support.
BE503073A (fr) * 1950-05-08
US3171627A (en) * 1962-04-19 1965-03-02 Union Metal Products Inc Extensible shoring device
DE3304554C2 (de) * 1983-02-10 1985-03-28 Kaefer Isoliertechnik Gmbh & Co Kg, 2800 Bremen Stützkonsole für eine Wärmedämmung
DE8716443U1 (de) * 1987-12-12 1988-04-07 Domesle, Benno, 8400 Regensburg Spreize, insbesondere zur Verwendung bei Verbauen, z. B. Grabenverbau
DE4423101C1 (de) * 1994-07-01 1995-09-28 Erhard Beck Verbaugerät für Rohrverschlüsse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8528754U1 (de) * 1985-10-09 1985-11-14 Wohlgemuth, Werner, 5828 Ennepetal Vorrichtung zum Verschließen von Gebäudeöffnungen
DE29604927U1 (de) * 1996-03-16 1996-05-23 Mauersberger, Dietmar, Dipl.-Ing., 09419 Thum Vorrichtung zum Arretieren von Absperreinrichtungen, insbesondere von Absperrblasen, bei der Dichtheitsprüfung von erdverlegten Kanälen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804742A1 (fr) * 2000-02-08 2001-08-10 Sogemap Injection Dispositif d'obturation pour boitier de connexion de conduites
EP1278003A2 (fr) * 2001-07-12 2003-01-22 Berliner Wasserbetriebe Anstalt des öffentlichen Rechts Dispositif pour fixer un élément d'obturation
EP1278003A3 (fr) * 2001-07-12 2003-09-17 Berliner Wasserbetriebe Anstalt des öffentlichen Rechts Dispositif pour fixer un élément d'obturation

Also Published As

Publication number Publication date
DE19610434A1 (de) 1997-09-18
EP0795653A3 (fr) 1998-07-01
DE19610434C2 (de) 2003-06-18

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