EP0720681A1 - Tuyau flexible d'injection pour joints de constructions en beton - Google Patents

Tuyau flexible d'injection pour joints de constructions en beton

Info

Publication number
EP0720681A1
EP0720681A1 EP94928797A EP94928797A EP0720681A1 EP 0720681 A1 EP0720681 A1 EP 0720681A1 EP 94928797 A EP94928797 A EP 94928797A EP 94928797 A EP94928797 A EP 94928797A EP 0720681 A1 EP0720681 A1 EP 0720681A1
Authority
EP
European Patent Office
Prior art keywords
strip
recess
base body
injection
liquid
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.)
Granted
Application number
EP94928797A
Other languages
German (de)
English (en)
Other versions
EP0720681B1 (fr
Inventor
Kunibert Koob
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.)
BBZ Injektions und Abdichtungstechnik GmbH
Original Assignee
BBZ Injektions und Abdichtungstechnik GmbH
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 BBZ Injektions und Abdichtungstechnik GmbH filed Critical BBZ Injektions und Abdichtungstechnik GmbH
Publication of EP0720681A1 publication Critical patent/EP0720681A1/fr
Application granted granted Critical
Publication of EP0720681B1 publication Critical patent/EP0720681B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6816—Porous tubular seals for injecting sealing material

Definitions

  • the invention relates to an injection hose for construction joints on concrete structures, with an essentially liquid-impermeable base body, which consists of flexible material such as rubber or plastic and encloses a through-channel and which in its outer jacket surface extends with at least one over its length.
  • the groove-like recess is provided, into which radial openings for the injection liquid emerge from the passage channel, distributed over its length, and in which a strip covering the openings is accommodated from material which is compressible under the internal pressure of the injection liquid, and with one the base body and liquid-permeable covering surrounding the strip in the manner of a tube.
  • an injection hose for construction joints on concrete structures with an essentially cylindrical liquid-permeable wall made of flexible material, such as rubber or plastic, is known, in which the wall has a slot extending over its length for the If the injection liquid emerges, the wall in the area of the slot has a recess, which also extends axially along its length, for receiving a strip covering the slot from material which is compressible under the pressure of the injection liquid, and in which the wall with the strip of one Hose is surrounded by liquid permeable material.
  • Such an injection hose has manufacturing disadvantages and because of the relatively narrow outlet slit compared to the width of the recess, relatively high compression pressures are required without a reliably uniform one Distribution of the injection liquid over the circumference of the injection hose can achieve.
  • the object of the invention is to propose an injection hose of the type mentioned at the outset which, with simple manufacture and relatively low compressive pressures, permits a uniform distribution of the injection liquid over the circumference of the injection hose, so that joints can also be reliably pressed, for example with cement.
  • this object is achieved either in that a single depression with a predetermined slope rotates helically in the outer circumferential surface of the base body, or in that the single depression runs axially parallel but has an opening width of more than 90 °.
  • the manufacture of the injection hose is simplified since only a single depression has to be provided in the lateral surface of the base body, on the other hand the disadvantages of a continuous slot in the base body are avoided because radial passage distributed over the length of the base body 'openings are provided, and there is surprisingly an extraordinarily uniform distribution of the injection liquid over the circumference of the depression either due to the helical shape of the depression or the relatively large width of the depression Injection hose achieved so that construction joints can be sealed with greater security.
  • the sheathing consists of a large-mesh, low-stretch fabric that closely encloses the outer surface of the base body and the outer surface of the strip, because in this way the injection hose does not expand in size when the injection liquid is pressed, but only an inner valve Effect due to the compression of the strip material comes into play.
  • the strip which closes the openings in the groove-shaped depression when there is external pressure, for example the concrete pressure, and the better the external pressure is, the inside compresses under the compression pressure in such a way that the injection liquid easily escapes can. Because of the low-stretch fabric, the injection hose cannot change its cross-section, which could otherwise lead to incomplete sealing of the construction joint.
  • the passage is arranged eccentrically in the cylindrical base body to save material.
  • the lateral boundary flanks of the depression and the strip can advantageously run obliquely towards one another from radially outside to radially inside in a manner known per se. This results in a particularly favorable opening cross-section when the pressing pressure is present from the inside and a particularly reliable seal of the passage when pressure is applied from the outside.
  • the opening cross section can also be favorably influenced with reliable sealing, that the width of the base surface of the recess is only slightly larger than the diameter of the openings.
  • the recess and the strip have an essentially corresponding trapezoidal cross-section, with a slightly curved base surface and an outer surface correspondingly curved to the tube circumference, so that the recess practically completely fills the recess when the strip is at rest.
  • the distance between the radial openings in the recess is of the order of 1 to 3 cm, their diameter between about 3 and 5 mm.
  • a diameter between about 5 and 10 mm is expedient, depending on the molding material.
  • the depth of the depression is approximately in the range between 2 and 5 mm. This then also corresponds to the thickness of the strips in the uncompressed state.
  • Polyvinyl chloride is particularly suitable as the material for the base body, and foam rubber, foam rubber or neoprene is suitable for the strip.
  • the tube-like covering can be a large-mesh, low-stretch bobbin fabric.
  • FIG. 1c shows the section of a hose-like covering for the base body according to FIG. 1a after the strip of FIG. 1b has been inserted into the groove-like, wedge-shaped circumferential recess,
  • FIGS. 1a to 1b shows a cross section through an injection hose having the invention according to the first embodiment after assembly of the parts according to FIGS. 1a to 1b,
  • Fig. 2 shows a cross section similar to Fig. 1d for another embodiment of the invention.
  • Fig. 3 shows a section corresponding to Fig. 1d for yet another embodiment of the invention.
  • the injection hose 1 consists of a base body 2 which has an essentially hollow cylindrical wall and thereby forms a continuous steal central (Fig. 1a, 1d and 3) or eccentric axially parallel cylindrical passage channel 3. Through the passage channel 3, a later hardening injection fluid is pressed in from one end or both ends of the injection hose 1 or possibly also with connections provided therebetween, in order to extend it over the length of a construction joint to be sealed Distribute concrete structure in which the injection hose 1 is inserted.
  • FIGS. 1a and 1d 2 is equipped with a groove-like, circumferential recess 5 extending over the length of the base body 2. Radial openings 6 for the discharge of injection liquid from the passage channel open into the recess 5 distributed over their length
  • the strip 7 consists of a material such as neoprene that is compressible under the internal pressure (compression pressure) of the injection liquid.
  • compression pressure internal pressure of the injection liquid.
  • the base body 2 with the inserted strip 7 is closely surrounded by a hose-like liquid-permeable covering 8. Due to the fact that the single recess 5 rotates in a helical shape, the injection liquid can emerge evenly distributed over the entire circumference of the injection hose 1 despite the use of only a single strip 7.
  • the covering 8 preferably consists of a large-meshed surface
  • the solution according to the invention therefore enables an internal function that is functional at all times. created valve device, which ensures a uniform distribution of the injection liquid when pressing a work joint to be sealed without widening the injection hose cross-section.
  • the passage channel 3 is arranged eccentrically in the cylindrical base body 2, the hose cross section can have a relatively small cross section despite a relatively large thickness of the strip 7 and therefore a good opening and closing function.
  • the embodiment according to FIG. 2 relates to an injection hose 1 in which the recess 5 and the strip 7 run axially parallel to the passage channel 3 and the recess 5 has an opening width ⁇ of less or more than 90 °.
  • the embodiment shown in FIG. 3 is also an injection hose 1, the recess 5 and strips 7 of which run axially parallel to the passage 3, but the recess 5 extends over an opening width ⁇ of more than 90 °, so that in this way, a sufficiently uniform distribution of the injection liquid can be achieved when pressing over the circumference of the injection hose 1 during the pressing.
  • the lateral boundary flanks 10 of the depression 5 and the strip 7 run obliquely towards one another from radially outside to radially inside.
  • the depression 5 and the strip 7 then preferably have an essentially corresponding trapezoidal cross section, with a slightly curved base surface 11 of the strip 7 or the recess 5 and the outer circumference 9 of the strip 7, which is curved corresponding to the tube circumference.
  • All versions also have in common that the width of the base surface 11 of the recess 5 is only slightly gig is larger than the diameter of the radial openings 6, so that the inner valve device of the injection hose 1 according to the invention opens even at relatively low compression pressures, but on the other hand a reliable seal is ensured when the strip 7 is pressurized from the outside.
  • the trapezoidal cross section of the depression it can of course also have any other shape as long as it is suitable for receiving a corresponding compressible strip, a round cord or the like. So it can be semicircular, oval or the like. Shaped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Building Environments (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Un tuyau flexible d'injection (1) pour joints de constructions en béton comprend un corps de base (2) constitué essentiellement d'un matériau souple imperméable aux liquides, tel que le caoutchouc ou une matière plastique, qui entoure un canal de passage (3). Le corps de base (2) est pourvu, sur son enveloppe extérieure (4), d'au moins une dépression (5) en forme de rainure qui s'étend sur toute sa longueur. Des ouvertures radiales (6) de sortie du liquide injecté à travers le canal de passage (3) sont réparties sur toute la longueur de cette dépression (5). Une bande de matériau pouvant se comprimer sous la pression interne du liquide injecté est située dans la dépression (5) et recouvre les ouvertures (6). Une gaine (8) perméable aux liquides entoure, à la manière d'un tuyau, le corps de base (2) et la bande. Une seule dépression (5) s'étend en spirale autour de l'enveloppe extérieure (4) du corps de base (2), avec un pas prédéterminé, ou s'étend parallèlement à l'axe du canal de passage (3), mais a un angle d'ouverture supérieur à 90 DEG .
EP94928797A 1993-09-24 1994-09-22 Tuyau flexible d'injection pour joints de constructions en beton Expired - Lifetime EP0720681B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4332589A DE4332589C2 (de) 1993-09-24 1993-09-24 Injektionsschlauch für Arbeitsfugen an Betonbauwerken
DE4332589 1993-09-24
PCT/EP1994/003174 WO1995008680A1 (fr) 1993-09-24 1994-09-22 Tuyau flexible d'injection pour joints de constructions en beton

Publications (2)

Publication Number Publication Date
EP0720681A1 true EP0720681A1 (fr) 1996-07-10
EP0720681B1 EP0720681B1 (fr) 1997-12-17

Family

ID=6498558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94928797A Expired - Lifetime EP0720681B1 (fr) 1993-09-24 1994-09-22 Tuyau flexible d'injection pour joints de constructions en beton

Country Status (13)

Country Link
US (1) US6044869A (fr)
EP (1) EP0720681B1 (fr)
CN (1) CN1131976A (fr)
AT (1) ATE161304T1 (fr)
AU (1) AU686239B2 (fr)
BR (1) BR9407609A (fr)
CA (1) CA2172533A1 (fr)
CZ (1) CZ87296A3 (fr)
DE (2) DE4332589C2 (fr)
NO (1) NO300181B1 (fr)
TW (1) TW253008B (fr)
WO (1) WO1995008680A1 (fr)
ZA (1) ZA947437B (fr)

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DE29612245U1 (de) * 1996-07-13 1996-09-12 Rehau Ag + Co, 95111 Rehau Injektionsschlauch
US20060261194A1 (en) * 2003-01-27 2006-11-23 Rongwu Ding Conduit water-saving irrigating device with the conduit and its application
CN101398109B (zh) * 2007-09-28 2010-06-02 刘文博 一种浇筑管件及其使用方法
US7913755B2 (en) * 2007-10-19 2011-03-29 Baker Hughes Incorporated Device and system for well completion and control and method for completing and controlling a well
US7789139B2 (en) * 2007-10-19 2010-09-07 Baker Hughes Incorporated Device and system for well completion and control and method for completing and controlling a well
US7784543B2 (en) * 2007-10-19 2010-08-31 Baker Hughes Incorporated Device and system for well completion and control and method for completing and controlling a well
US7775277B2 (en) * 2007-10-19 2010-08-17 Baker Hughes Incorporated Device and system for well completion and control and method for completing and controlling a well
US7793714B2 (en) * 2007-10-19 2010-09-14 Baker Hughes Incorporated Device and system for well completion and control and method for completing and controlling a well
US7775271B2 (en) * 2007-10-19 2010-08-17 Baker Hughes Incorporated Device and system for well completion and control and method for completing and controlling a well
US20090224069A1 (en) * 2008-03-07 2009-09-10 Ting-I Lin Hose Assembly
US8113292B2 (en) 2008-05-13 2012-02-14 Baker Hughes Incorporated Strokable liner hanger and method
US8171999B2 (en) * 2008-05-13 2012-05-08 Baker Huges Incorporated Downhole flow control device and method
US7789152B2 (en) * 2008-05-13 2010-09-07 Baker Hughes Incorporated Plug protection system and method
US8555958B2 (en) 2008-05-13 2013-10-15 Baker Hughes Incorporated Pipeless steam assisted gravity drainage system and method
US20090283256A1 (en) * 2008-05-13 2009-11-19 Baker Hughes Incorporated Downhole tubular length compensating system and method
CN102076599B (zh) * 2008-06-25 2014-10-08 印地安纳马斯科公司 具有可安装喷口的设于中心的龙头
US8132624B2 (en) 2009-06-02 2012-03-13 Baker Hughes Incorporated Permeability flow balancing within integral screen joints and method
US8151881B2 (en) 2009-06-02 2012-04-10 Baker Hughes Incorporated Permeability flow balancing within integral screen joints
US8056627B2 (en) 2009-06-02 2011-11-15 Baker Hughes Incorporated Permeability flow balancing within integral screen joints and method
BR112012020301A2 (pt) * 2010-03-02 2016-04-26 Acal Energy Ltd dispositivo para gerar bolhas finas, método para fabricar um dispositivo para gerar bolhas finas, método para gerar bolhas finas, sistema de regeneração de católito, e, uso do dispositivo
IT1402723B1 (it) 2010-11-22 2013-09-18 Elas Geotecnica Srl Valvola di non ritorno per un elemento tubolare di consolidamento
US8739826B2 (en) 2011-03-11 2014-06-03 Masco Corporation Of Indiana Centerset faucet body and method of making same
US8931500B2 (en) 2012-02-17 2015-01-13 Masco Corporation Of Indiana Two handle centerset faucet
US20140183278A1 (en) * 2013-01-03 2014-07-03 Clive Sofus Michelsen Perforated fluid dispensing hose or tube for the purpose of applying liquids and/or gases to railroad tracks including railroad switches, railroad crossings, bridge overheads and tunnel walls
EA034888B1 (ru) * 2013-10-03 2020-04-02 Эм-Ай Эл.Эл.Си. Шланг для операций перемещения навалочного материала
CN205393066U (zh) * 2016-03-07 2016-07-27 成都京东方光电科技有限公司 喷淋设备
CN114737689A (zh) * 2022-03-25 2022-07-12 德盛合成材料有限公司 一种防水板及其生产工艺
US12492551B2 (en) * 2023-04-18 2025-12-09 Dupont Safety & Construction, Inc. Foam envelope for sealing large volumes
US12559935B2 (en) * 2023-04-18 2026-02-24 Dupont Safety & Construction, Inc. Foam envelope for sealing large volumes
US12454822B2 (en) * 2023-04-18 2025-10-28 Ddp Specialty Electronic Materials Us, Llc Foam envelope for sealing large volumes
US12492550B2 (en) * 2023-04-18 2025-12-09 Dupont Safety & Construction, Inc. Foam envelope for sealing large volumes

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Also Published As

Publication number Publication date
NO961059D0 (no) 1996-03-15
ATE161304T1 (de) 1998-01-15
NO300181B1 (no) 1997-04-21
DE4332589C2 (de) 1996-01-04
AU686239B2 (en) 1998-02-05
DE59404838D1 (de) 1998-01-29
US6044869A (en) 2000-04-04
CA2172533A1 (fr) 1995-03-30
CN1131976A (zh) 1996-09-25
DE4332589A1 (de) 1995-03-30
EP0720681B1 (fr) 1997-12-17
WO1995008680A1 (fr) 1995-03-30
CZ87296A3 (en) 1996-09-11
TW253008B (fr) 1995-08-01
ZA947437B (en) 1996-02-13
BR9407609A (pt) 1997-01-14
NO961059L (no) 1996-03-22
AU7808994A (en) 1995-04-10

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