EP0380915A1 - Fitting for injecting mineral binding agents into construction parts - Google Patents
Fitting for injecting mineral binding agents into construction parts Download PDFInfo
- Publication number
- EP0380915A1 EP0380915A1 EP90100202A EP90100202A EP0380915A1 EP 0380915 A1 EP0380915 A1 EP 0380915A1 EP 90100202 A EP90100202 A EP 90100202A EP 90100202 A EP90100202 A EP 90100202A EP 0380915 A1 EP0380915 A1 EP 0380915A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection
- shaft
- binding agents
- injection packer
- mineral binding
- 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- Withdrawn
Links
Images
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 relates to an injection packer of the type specified in the preamble of the main claim.
- mineral binders are used instead of synthetic resin. Because of the different composition and flow properties of synthetic resins and mineral binders, the injection packers used for synthetic resins are not suitable for pressing mineral binders.
- the invention has for its object to provide an injection packer that is suitable for the compression of mineral binders and is both inexpensive to manufacture and easy and quick to assemble.
- connection Due to the connection molded integrally on the shaft in the injection molding process, it is possible to provide the longitudinal bore through the connection and shaft with a diameter that is the same over the entire length. This ensures an undisturbed, trouble-free flow. Furthermore, sealing problems between the connecting piece and the shaft are avoided.
- the injection packer consists of only one part and is thus very inexpensive to manufacture. For assembly, the injection packer is inserted into the prepared borehole, the diameter of which is slightly larger than the smallest diameter of the conical shaft. The injection packer is driven into the borehole with several hammer blows until the stem of the injection packer is firmly wedged in the borehole with a tubular impact tool that can be placed over the connection and is seated on the stop shoulder formed by the larger shaft diameter.
- the binder After connecting the hose of the high-pressure pump, the binder is now injected into the blind hole until material rises from the injection packers placed next to it.
- the outer surface of the shaft can be provided with circumferential ribs, which can also be designed as a thread with a sawtooth profile.
- the injection packers 1a, 1b according to FIGS. 1 and 2 are made of impact-resistant plastic by injection molding, the connection 2 being integrally formed on the shaft 3.
- the shaft 3 is conical in both embodiments, the shaft 3 of the injection packer 1a having a smooth outer surface 4. Due to the reduced diameter of the connection 2 compared to the shaft diameter, a stop shoulder 5 results, on which the insertion tool 6, which can be put over the connection 2, can be placed. With this impact tool 6, the injection packer 1a is driven into a blind hole 7 until the shaft 3 of the injection packer is wedged in the hole 7.
- the mineral binder After postponing the with an ent speaking coupling piece provided hose (not shown) on the connection 2 of the injection packer, the mineral binder is pressed with a high pressure pump through the longitudinal bore 8 of the injection packer 1a, 1b into the blind hole. Due to the high pressure of approx. 200 bar, the binder penetrates through the wall of the blind hole into the material of the component to compress it. The injection is carried out until material rises from the adjacent injection packer.
- the shaft 3 of the injection packer 1b according to FIG. 2 has, on its outer surface, circumferential ribs 9 designed as threads. It is advisable to use a rotary impact wrench to set such an injection packer.
- the latter For torque transmission from the machine to the injection packer, the latter has a square 10 at the end of the shaft 3 having the connection 2, by means of which a key clamped in the machine can be put over.
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)
Abstract
Description
Die Erfindung bezieht sich auf einen Injektionspacker der im Oberbegriff des Hauptanspruches angegebenen Gattung.The invention relates to an injection packer of the type specified in the preamble of the main claim.
Zur Sanierung von mit Rissen versehenen Bauteilen ist es bekannt, die Risse durch Kunstharzinjektionen zu verpressen. Zu diesem Zweck werden in die Risse Bohrungen eingebracht, in die zum Injizieren des Kunstharzes Injektionspacker eingeschlagen werden. Nach dem Eindrehen eines in der Regel als Nippel ausgebildeten Anschlußstückes in das aus dem Bohrloch ragende Stirnende des Injektionspackers wird mit einer Hochdruckpumpe das Kunstharz über einen mit dem Anschlußstück verbundenen Schlauch in die Risse gepreßt.For the renovation of components provided with cracks, it is known to press the cracks by means of resin injections. For this purpose, holes are drilled into the cracks, into which injection packers are hammered in to inject the synthetic resin. After screwing in a connection piece, which is usually designed as a nipple, into the front end of the injection packer projecting from the borehole, the synthetic resin is pressed into the cracks by means of a high-pressure pump via a hose connected to the connection piece.
Für die Sanierung von alterungsbedingt porös und wasserdurchlässig gewordenen Betonteilen insbesondere im Tunnel- und Kanalbau wird statt Kunstharz mineralisches Bindemittel verwendet, das mit raserförmig in Sacklochbohrungen gesetzten Injektionspackern von den Sacklochbohrungen ausgehend radial zur Verdichtung des gesamten Betongefüges unter hohem Druck eingepreßt wird. Wegen der unterschiedlichen Zusammensetzung und Fließeigenschaften von Kunstharzen und mineralischem Bindemittel sind die für Kunstharze eingesetzte Injektionspacker für die Verpressung von mineralischem Bindemittel nicht geeignet.For the renovation of concrete parts that have become porous and water-permeable due to aging, in particular in tunnel and sewer construction, mineral binders are used instead of synthetic resin. Because of the different composition and flow properties of synthetic resins and mineral binders, the injection packers used for synthetic resins are not suitable for pressing mineral binders.
Der Erfindung liegt die Aufgabe zugrunde, einen Injektionspacker zu schaffen, der für die Verpressung von mineralischem Bindemittel geeignet und sowohl kostengünstig herstellbar als auch einfach und schnell montierbar ist.The invention has for its object to provide an injection packer that is suitable for the compression of mineral binders and is both inexpensive to manufacture and easy and quick to assemble.
Diese Aufgabe wird erfindungsgemäß mit den im Kennzeichen des Hauptanspruches angeführten Mitteln gelöst.This object is achieved according to the invention with the means specified in the characterizing part of the main claim.
Durch den im Spritzgußverfahren einstückig am Schaft angeformten Anschluß ist es möglich, die durch Anschluß und Schaft führende Längsbohrung mit einem auf der ganzen Länge gleichen Durchmesser zu versehen. Damit wird ein ungestörter problemloser Durchfluß erreicht. Des weiteren sind Abdichtprobleme zwischen Anschlußstück und Schaft vermieden. Der Injektionspacker besteht nur noch aus einem einzigen Teil und ist somit sehr kostengünstig herstellbar. Zur Montage wird der Injektionspacker in das vorbereitete Bohrloch eingesetzt, dessen Durchmesser geringfügig größer ist als der kleinste Durchmesser des konisch ausgebildeten Schaftes. Mit einem rohrförmigen über den Anschluß stülpbaren und auf der durch den größeren Schaftdurchmesser gebildeten Anschlagschulter aufsitzenden Einschlagwerkzeug wird der Injektionspacker mit mehreren Hammmerschlägen in das Bohrloch soweit eingetrieben, bis der Schaft des Injektionspackers fest im Bohrloch verkeilt ist. Nach dem Anschluß des Schlauches der Hochdruckpumpe wird nunmehr das Bindemittel in die Sacklochbohrung solange injiziert, bis aus den benachbart gesetzten Injektionspackern Material aufsteigt. Um das Einschlagen der Injektionspacker zu erleichtern kann die Mantelfläche des Schaftes mit umlaufenden Rippen versehen sein, die auch als Gewinde mit sägezahnförmigem Profil ausgebildet werden können. Bei einer solchen Ausgestaltung ist es zweckmäßig, an das den Anschluß aufweisende Ende des Schaftes einen Mehrkantquerschnitt zum Ansetzen eines Schlüssels anzuformen. Damit ist es möglich, den Injektionspacker maschinell mit einem Drehschlagschrauber in das Bohrloch einzutreiben.Due to the connection molded integrally on the shaft in the injection molding process, it is possible to provide the longitudinal bore through the connection and shaft with a diameter that is the same over the entire length. This ensures an undisturbed, trouble-free flow. Furthermore, sealing problems between the connecting piece and the shaft are avoided. The injection packer consists of only one part and is thus very inexpensive to manufacture. For assembly, the injection packer is inserted into the prepared borehole, the diameter of which is slightly larger than the smallest diameter of the conical shaft. The injection packer is driven into the borehole with several hammer blows until the stem of the injection packer is firmly wedged in the borehole with a tubular impact tool that can be placed over the connection and is seated on the stop shoulder formed by the larger shaft diameter. After connecting the hose of the high-pressure pump, the binder is now injected into the blind hole until material rises from the injection packers placed next to it. In order to facilitate the wrapping of the injection packer, the outer surface of the shaft can be provided with circumferential ribs, which can also be designed as a thread with a sawtooth profile. In such an embodiment, it is expedient to form a polygonal cross-section on the end of the shank that has the connection in order to attach a key. This enables the injection packer to be driven mechanically into the borehole using a rotary impact wrench.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:
- Figur 1 den in einem Bohrloch eingesetzten Injektionspacker,
Figur 2 einen Injektionspacker, dessen Schaft mit als Gewinde ausgebildeten umlaufenden Rippen versehen ist.
- 1 shows the injection packer used in a borehole,
- Figure 2 shows an injection packer, the shaft of which is provided with circumferential ribs designed as threads.
Die Injektionspacker 1a, 1b nach Figur 1 und 2 sind aus schlagfestem Kunststoff im Spritzgußverfahren hergestellt, wobei der Anschluß 2 einstückig am Schaft 3 angeformt ist. Der Schaft 3 ist bei beiden Ausführungsformen konisch ausgebildet, wobei der Schaft 3 des Injektionspackers 1a eine glatte Mantelfläche 4 aufweist. Durch den gegenüber dem Schaftdurchmesser reduzierten Durchmesser des Anschlusses 2 ergibt sich eine Anschlagschulter 5, auf der das über den Anschluß 2 stülpbare Einschlagwerkzeug 6 aufgesetzt werden kann. Mit diesem Einschlagwerkzeug 6 wird der Injektionspacker 1a in eine Sacklochbohrung 7 soweit eingetrieben, bis der Schaft 3 des Injektionspackers im Bohrloch 7 verkeilt ist. Nach dem Aufschieben des mit einem ent sprechenden Kupplungsstück versehenen Schlauches (nicht dargestellt) auf den Anschluß 2 des Injektionspackers wird das mineralische Bindemittel mit einer Hochdruckpumpe durch die Längsbohrung 8 des Injektionspackers 1a, 1b in die Sacklochbohrung eingepreßt. Durch den hohen Druck von ca. 200 bar dringt das Bindemittel durch die Wandung der Sacklochbohrung in das Material des Bauteiles zu dessen Verdichtung ein. Die Injektion wird solange durchgeführt, bis aus dem benachbart gesetzten Injektionspacker Material aufsteigt.The injection packers 1a, 1b according to FIGS. 1 and 2 are made of impact-resistant plastic by injection molding, the
Der Schaft 3 des Injektionspackers 1b nach Figur 2 weist an seiner Außenfläche umlaufende, als Gewinde ausgebildete Rippen 9 auf. Zum Setzen eines solchen Injektionspackers empfiehlt es sich, einen Drehschlagschrauber zu verwenden. Zur Drehmomentübertragung von der Maschine auf den Injektionspacker weist dieser an dem den Anschluß 2 aufweisenden Ende des Schaftes 3 einen Vierkant 10 auf, über den ein in der Maschine eingespannter Schlüssel überstülpbar ist.The
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3902925 | 1989-02-01 | ||
DE3902925A DE3902925A1 (en) | 1989-02-01 | 1989-02-01 | INJECTION PACKER FOR INJECTING MINERAL BINDING AGENT IN COMPONENTS |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0380915A1 true EP0380915A1 (en) | 1990-08-08 |
Family
ID=6373201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90100202A Withdrawn EP0380915A1 (en) | 1989-02-01 | 1990-01-05 | Fitting for injecting mineral binding agents into construction parts |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0380915A1 (en) |
JP (1) | JPH02232468A (en) |
BR (1) | BR9000424A (en) |
DE (1) | DE3902925A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2154100A1 (en) * | 1997-06-16 | 2001-03-16 | Marc Bidaux S A | Wall plug for injection of treatment product into masonry wall |
WO2001046539A1 (en) * | 1999-12-20 | 2001-06-28 | Ludwig Hettich & Co. | Sealed filling element and a method for introducing injectable media into cracks or cavities in concrete |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120212A1 (en) * | 1991-06-19 | 1992-12-24 | Fischer Artur Werke Gmbh | INJECTION PACKER |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2154116A (en) * | 1936-07-08 | 1939-04-11 | Stewart Warner Corp | Lubricant receiving fitting |
DE3320428A1 (en) * | 1983-06-06 | 1984-12-06 | Hilti Ag, Schaan | Closure element for boreholes |
DE8617587U1 (en) * | 1986-07-02 | 1987-10-29 | Ernst Peiniger GmbH Unternehmen für Bautenschutz, 5090 Leverkusen | Device for corrosion protection of the mutual contact surfaces of firmly connected structural parts |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR953996A (en) * | 1947-09-18 | 1949-12-16 | Improvements made to crack sealing processes that may occur in masonry structures | |
US3572956A (en) * | 1968-07-30 | 1971-03-30 | Halliburton Co | Apparatus for grouting |
AT368248B (en) * | 1980-01-30 | 1982-09-27 | Scheiber Wilfried | INJECTION PACKER FOR HOLE HOLE CLOSURES |
JPS58101971A (en) * | 1981-12-11 | 1983-06-17 | 江本 順成 | Pinning method using hollow pipe |
JPS59191803A (en) * | 1984-04-02 | 1984-10-31 | 株式会社荏原製作所 | Boiler |
DE8813495U1 (en) * | 1988-01-15 | 1989-01-26 | Remmertz, Erika, 4050 Mönchengladbach | Injection packer for injecting liquid substances into cracked structures with a valve |
-
1989
- 1989-02-01 DE DE3902925A patent/DE3902925A1/en not_active Withdrawn
-
1990
- 1990-01-05 EP EP90100202A patent/EP0380915A1/en not_active Withdrawn
- 1990-01-29 JP JP2016311A patent/JPH02232468A/en active Pending
- 1990-01-31 BR BR909000424A patent/BR9000424A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2154116A (en) * | 1936-07-08 | 1939-04-11 | Stewart Warner Corp | Lubricant receiving fitting |
DE3320428A1 (en) * | 1983-06-06 | 1984-12-06 | Hilti Ag, Schaan | Closure element for boreholes |
DE8617587U1 (en) * | 1986-07-02 | 1987-10-29 | Ernst Peiniger GmbH Unternehmen für Bautenschutz, 5090 Leverkusen | Device for corrosion protection of the mutual contact surfaces of firmly connected structural parts |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2154100A1 (en) * | 1997-06-16 | 2001-03-16 | Marc Bidaux S A | Wall plug for injection of treatment product into masonry wall |
WO2001046539A1 (en) * | 1999-12-20 | 2001-06-28 | Ludwig Hettich & Co. | Sealed filling element and a method for introducing injectable media into cracks or cavities in concrete |
Also Published As
Publication number | Publication date |
---|---|
BR9000424A (en) | 1991-01-15 |
JPH02232468A (en) | 1990-09-14 |
DE3902925A1 (en) | 1990-08-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3936040A1 (en) | INJECTION PACKER FOR INJECTING RESIN IN CONCRETE Cracks | |
DE3100804C2 (en) | "Injection packer for borehole closures in masonry or natural rock" | |
WO2009092626A2 (en) | Injection head for an injection bore anchor | |
DE69727108T2 (en) | Injection dowels for pressing grouting material into concrete components and connecting device | |
DE3724559A1 (en) | METHOD FOR STRENGTHENING TORN COMPONENTS | |
WO2003008762A1 (en) | Drilled hole closure | |
EP0380915A1 (en) | Fitting for injecting mineral binding agents into construction parts | |
DE19503122B4 (en) | injection anchor | |
WO2009092632A1 (en) | Injection spigot | |
EP0519180B1 (en) | Injector plug | |
DE3407727C2 (en) | ||
EP0888486A1 (en) | Stop element holder for wall formwork | |
EP0739442B1 (en) | Tensionable gfp rock anchor | |
EP0397716B1 (en) | Injection device for introducing fluids under pressure into cracked structures | |
DE3901013A1 (en) | Injection packer for pressing fluid compositions into cracked structural bodies with a valve | |
DE102006032668A1 (en) | Injection packer has elastic expandable ring element which is accommodated in backward extending conical chamber wall in chamber formed by pressure disk | |
DE8800265U1 (en) | Device for injecting injection material | |
DE8600358U1 (en) | packer | |
DE3926986C2 (en) | ||
DE7630026U1 (en) | CONNECTOR AND SEALING DEVICE FOR REPAIRING UNWANTED CAVITIES IN PREFERRED MASONRY OR CONCRETE | |
DD297678A5 (en) | INJECTION PACKER FOR INJECTING ARTIFICIAL RESIN IN CONCRETE | |
EP1443161A2 (en) | Injection anchor | |
DE10300854B3 (en) | Device and method for fastening facade panels | |
DE2523198C3 (en) | Anchoring a fastener | |
DE10045652A1 (en) | Seat metal for adhesive injection apparatus has nut that is matched to threaded end of core material pipe after mounting collar on elastic pipe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB IT LI NL |
|
17P | Request for examination filed |
Effective date: 19901213 |
|
17Q | First examination report despatched |
Effective date: 19911122 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920403 |