EP0732467B1 - Injektionspacker für Bohrlochinjektionen in Mauerwerken - Google Patents

Injektionspacker für Bohrlochinjektionen in Mauerwerken Download PDF

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Publication number
EP0732467B1
EP0732467B1 EP96102525A EP96102525A EP0732467B1 EP 0732467 B1 EP0732467 B1 EP 0732467B1 EP 96102525 A EP96102525 A EP 96102525A EP 96102525 A EP96102525 A EP 96102525A EP 0732467 B1 EP0732467 B1 EP 0732467B1
Authority
EP
European Patent Office
Prior art keywords
injection
injection packer
packer according
bore
spring
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.)
Expired - Lifetime
Application number
EP96102525A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0732467A1 (de
Inventor
Klaus Schreiner
Oliver Schreiner
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.)
Sto SE and Co KGaA
Original Assignee
Sto SE and Co KGaA
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
Priority claimed from DE29502717U external-priority patent/DE29502717U1/de
Application filed by Sto SE and Co KGaA filed Critical Sto SE and Co KGaA
Publication of EP0732467A1 publication Critical patent/EP0732467A1/de
Application granted granted Critical
Publication of EP0732467B1 publication Critical patent/EP0732467B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions
    • E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection

Definitions

  • the invention is directed to an injection packer for borehole injections in masonry, concrete components, wood or Like.
  • a closure element and a sealing shoulder showing, continuous inner longitudinal bore and with adhesion increasing Anchoring means on the outer surface of the packer, wherein the closure element is in the form of a valve lifter is, the plunger head in the closed position on the sealing shoulder seals under the action of a spring that in the interior of the longitudinal bore on a perforated support plate which supports the flow of the injection medium allowing console.
  • a known injection packer (GB-A-1 526 023) is a sliding element in the interior of the longitudinal bore mounted cylindrical valve tappet with a conical Tappet head is provided, which is in the closing direction against a sealing shoulder formed by narrowing the longitudinal bore supports.
  • the valve lifter is projecting axially Provide guide approaches of small diameter, of which the the sealing shoulder remote approach from that designed as a spiral spring Tappet spring is surrounded, on the one hand, the tappet head acted on its back and on the other one Art console rests inside the bore.
  • Closure elements ensure a secure seal, and even if highly viscous liquids are injected and this material again after the pressure has been reduced by the packer can flow slowly outwards. Otherwise, the manufacturing technology Effort for such injection packers out of many Individual parts that have to be coordinated with each other are high.
  • the object of the invention is therefore to create a rational producible and easy to use design, which offers a particularly large effective cross-section, but still ensures secure closing.
  • plunger head, the plunger spring and the support plate are integrally formed as a plastic element.
  • This one-piece design of plunger head, plunger spring and support plate enables particularly efficient packer production as a mass article.
  • closure element as a spring-loaded Valve lifter is designed, it is possible to be more effective Flow cross sections to achieve than this with ball seals is already possible because of the necessary ball cage. It also ensures that the valve lifter is independent closes from the counter pressure.
  • the tappet shaft carrying the tappet head is designed as a spiral spring.
  • This configuration makes it possible to use an injection packer also to be equipped with a spring-loaded valve tappet, when it comes to comparatively small sizes small inner diameter.
  • the plunger spring can expediently on one perforated support plate coming into contact with the console support.
  • the injection packers are made of plastic are expedient, as is the invention as well provides the plunger head, the plunger spring and the support plate form integrally as a plastic element.
  • the invention provides two configurations that are included lie that the support plate with outward-pointing support fingers is equipped, which is in the installation position on the console support and a small deformation path to snap the console when installing against the opening direction of the spring allow. It is also provided that the inside of the through hole the sealing shoulder for the contact surface forming the plunger head Guide bevels for guiding and centering the plunger head are assigned in the installation and use position.
  • the support fingers of the support plate allow one easy installation of the unit consisting of plunger head, plunger spring and support plate; the guide bevels on the contact surface of the plunger head not only provide for a corresponding during installation Centering, but also while using the injection packer for guiding the tappet head in the sealing Seat.
  • the outer surface of the packer can Area of the plunger sealing head designed as a centering cylinder to make it easier to hit.
  • This centering cylinder can also be used to apply extension pieces, about as described in DE-U-94 18 440 is.
  • the injection packer generally designated 1, exists preferably made of plastic. It can be built into a masonry located borehole, not shown in the figures is to hit. To facilitate centering in the borehole, the injection packer 1 has a serving as a centering cylinder Area 2 on. As connection to a source of injection material it comprises a coupling shaft 3. Points on its outer surface the injection packer a number of different sizes if necessary dimensioned, serving as anchoring means increasing the liability Sealing ribs 4, namely their radial extension increases Clutch shaft 3 towards.
  • the one that also serves as a coupling shaft Area 2 can in the case of an injection packer la according to the 2 and 5 be equipped with an extension piece 6, that with a distance of about 6 cm offset from each other on the circumference Perforations 5 with a diameter of 0.8 to 1 mm is provided.
  • closure element 7 is designed as a one-piece plastic part and has a frustoconical plunger head 8, one as a spiral spring trained plunger shaft 9 and an integrally molded thereon Support plate 10 on the with a plurality of radial Support finger 11 is equipped.
  • the plunger head 8 is based on that shown in FIG. 3 Closure position on one in the longitudinal bore 13 of the injection packer provided sealing shoulder 12. To this Sealing shoulder 12 close on its closure element 7 facing side guide bevels 14 to the plunger head 8 center.
  • a console 15 in the form a circumferential, inwardly facing annular bead provided, the support of the support plate 10 or the corresponding Support finger 11 is used.
  • the unit When assembling the closure element 7, the unit from plunger head, spiral plunger shaft 9 and support plate 10 e.g. 3 from the right into the longitudinal bore 13 of the injection packer 1 inserted.
  • the platter will be 10 with the support fingers 11 via the rotating bracket 15 pressed so that the support fingers 11 deform slightly and snap over the console 15.
  • the plunger head 8 supplied via the centering slope 14 of the sealing shoulder 12 and fixed by her.
  • the plunger head 8 If material, in the example of FIG. 4 from the left, in the Injection packer is pushed in, the plunger head 8 by this inflowing material pushed back and gives the flow opening free in the area of the sealing shoulder 12, so that the material can flow through the injection packer. As soon as the Pressure has decreased after switching off the injection source, the spring 9 moves the plunger head 8 into the sealing position, whereby it is supported by possibly flowing back, pressed-in material becomes.
  • an injection packer is preferred, such as it is illustrated in Figs. 2 and 5, i.e. a packer with one placed on the area 2 serving as the coupling shaft Extension piece 6, which is expedient at its outer end is closed.
  • the injection material then occurs through the radial perforations 5 and can affect this Distribute way particularly effectively, for example by a subsequent Horizontal sealing.
  • a supply device is used for this, with the help of which the materials, e.g. Silicone microemulsions through the packer into the borehole of the Masonry are pressed.
  • Fig. 5 shows an embodiment in which the extension piece 6 in an accordion-shaped and thus flexible end portion 16 which expands to local conditions of the borehole, especially the length can.
  • the extension piece 6 turns for example out too long takes place without functional impairment a compression in the axial direction and thus a shortening.
  • This accordion-like end 16 can be made in one piece as part of the extension piece 6 having perforations 5 his. However, it also makes sense to run at which provided this end 16 as a separate part that can be connected to the extension piece 6 if necessary, is screwable, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)
EP96102525A 1995-02-18 1996-02-19 Injektionspacker für Bohrlochinjektionen in Mauerwerken Expired - Lifetime EP0732467B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29502717U DE29502717U1 (de) 1995-02-18 1995-02-18 Injektionspacker für Bohrlochverschlüsse in Mauerwerken
DE29502717U 1995-02-18
DE29506881U DE29506881U1 (de) 1995-02-18 1995-04-24 Injektionspacker für Bohrlochverschlüsse in Mauerwerken
DE29506881U 1995-04-24

Publications (2)

Publication Number Publication Date
EP0732467A1 EP0732467A1 (de) 1996-09-18
EP0732467B1 true EP0732467B1 (de) 2000-09-13

Family

ID=26057602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102525A Expired - Lifetime EP0732467B1 (de) 1995-02-18 1996-02-19 Injektionspacker für Bohrlochinjektionen in Mauerwerken

Country Status (6)

Country Link
EP (1) EP0732467B1 (pl)
AT (1) ATE196340T1 (pl)
CZ (1) CZ289745B6 (pl)
DE (1) DE19604518B4 (pl)
PL (1) PL180181B1 (pl)
SK (1) SK284390B6 (pl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179258A (zh) * 2013-06-26 2014-12-03 青岛建安建设集团有限公司 螺栓孔防渗施工方法
CN104264797A (zh) * 2013-06-26 2015-01-07 青岛建安建设集团有限公司 建筑外墙采用微膨胀型化学胶粘剂的螺栓孔防渗施工方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29803930U1 (de) * 1998-03-06 1999-07-08 CHEMOFAST ramcord Befestigungssysteme GmbH, 47877 Willich Vorrichtung zum teilweisen Füllen eines Bohrlochs mit Klebemasse

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346879A (en) * 1941-09-30 1944-04-18 Louis S Wertz Apparatus for filling cracks in concrete masonry structures
US2960831A (en) * 1954-03-12 1960-11-22 Stickler Associates Inc Injector
GB1526023A (en) * 1976-01-26 1978-09-27 Grobler J Dampproofing of buildings and other constructional elements
ZA785777B (en) * 1977-11-14 1979-09-26 Afa Corp Unitary valve and spring assembly
DE8536534U1 (de) * 1985-12-27 1986-02-20 Remmertz, Helmut, 4050 Mönchengladbach Einschlagbarer Injektionspacker
CH684649A5 (it) * 1990-09-12 1994-11-15 Intecser Ag Nipplo per iniettare resine induribili entro una cavità.
GB2254642B (en) * 1991-03-22 1995-06-14 King Tech Rehabilitation Co Lt Filler injector
US5342149A (en) * 1992-08-31 1994-08-30 Mccabe Brothers, Inc. Long hole chemical grout injector system
DE9312859U1 (de) * 1993-08-27 1994-09-22 Discher, Hannelore, 34305 Niedenstein Einschlagbarer Injektionspacker für Bohrlochverschlüsse in Mauerwerken o.dgl.
DE9418440U1 (de) * 1994-11-18 1996-03-21 Schreiner, Klaus, 34246 Vellmar Einschlagbarer Injektionspacker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179258A (zh) * 2013-06-26 2014-12-03 青岛建安建设集团有限公司 螺栓孔防渗施工方法
CN104264797A (zh) * 2013-06-26 2015-01-07 青岛建安建设集团有限公司 建筑外墙采用微膨胀型化学胶粘剂的螺栓孔防渗施工方法

Also Published As

Publication number Publication date
DE19604518B4 (de) 2004-04-22
SK22096A3 (en) 1997-01-08
DE19604518A1 (de) 1996-08-22
CZ289745B6 (cs) 2002-03-13
EP0732467A1 (de) 1996-09-18
PL180181B1 (pl) 2000-12-29
PL312843A1 (en) 1996-08-19
SK284390B6 (sk) 2005-03-04
CZ47496A3 (en) 1996-09-11
ATE196340T1 (de) 2000-09-15

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