EP3643845B1 - Système de levage - Google Patents

Système de levage Download PDF

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Publication number
EP3643845B1
EP3643845B1 EP18202460.4A EP18202460A EP3643845B1 EP 3643845 B1 EP3643845 B1 EP 3643845B1 EP 18202460 A EP18202460 A EP 18202460A EP 3643845 B1 EP3643845 B1 EP 3643845B1
Authority
EP
European Patent Office
Prior art keywords
tube
lifting assembly
wall
tube body
assembly according
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.)
Active
Application number
EP18202460.4A
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German (de)
English (en)
Other versions
EP3643845A1 (fr
Inventor
Bernhard Kessel
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.)
Kessel AG
Original Assignee
Kessel AG
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 Kessel AG filed Critical Kessel AG
Priority to EP18202460.4A priority Critical patent/EP3643845B1/fr
Priority to PL18202460T priority patent/PL3643845T3/pl
Priority to EP19216906.8A priority patent/EP3656936B1/fr
Priority to PL19216906T priority patent/PL3656936T3/pl
Publication of EP3643845A1 publication Critical patent/EP3643845A1/fr
Application granted granted Critical
Publication of EP3643845B1 publication Critical patent/EP3643845B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/22—Adaptations of pumping plants for lifting sewage
    • 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
    • E03F7/04—Valves for preventing return flow

Definitions

  • EP 2 447 429 A1 known backflow stop which can also be used as a lifting system, if necessary, is a backflow loop connection connected to the discharge line, a one-piece pipe socket which has a section inside the container and a section outside the container, between which a power transmission takes place because of the one-piece nature.
  • the pipe socket is clamped on the inside against the wall of the container with a nut screwed on on the outside.
  • the pressure pipe is a one-piece tubular body with an outer and an inner section.
  • the one-piece tubular body is installed sealed in a socket at a push-through opening in the wall.
  • the invention is based on the object of creating a lifting system of the type mentioned at the beginning, which is characterized by convenient construction, maintenance and cleaning as well as improved operational safety.
  • the stated object is achieved with the features of claim 1.
  • the tubular body of the inner section can be attached using simple structural means so that it can be installed without tools, i.e. can be easily installed and removed by hand for the fitter or user. Because the outer section or its tubular body is fixed separately from the inner section on the wall of the container.
  • the decoupling of the tubular bodies is achieved by at least one elastic seal that is installed between the inner section or its tubular body and the container, as well as by a free space between the two tubular bodies. Even if the wall of the container should be deformed by the outer section due to external forces when it is passed through the wall, the tubular body of the inner section remains permanently in its desired position.
  • the tubular body of the outer section can have a flange that can be screwed from the outside on or in a receptacle of the wall, preferably via an annular seal, while the tubular body of the inner section can be inserted into a tube formed in the wall, preferably with the seal placed in between. Under axial tightening tension, it can be releasably locked for tool-free installation and removal in a holding structure molded or attached to the wall. All manipulations on or with the inner section can thus be carried out by hand without tools, which significantly increases the comfort for the user or fitter.
  • the seal jointly responsible for the decoupling can be designed in the shape of a flange tube with an angular cross-section and at least on the inside have at least one circumferential rib which can be brought into engagement in at least one circumferential groove of the tubular body of the inner section. This facilitates the assembly of the pipe body, since the seal can be applied in advance and holds its position during assembly.
  • the angular cross-section offers the advantage of a circular ring flange made of the sealing material, which is braced between the flange and the holding structure or the wall of the container and prevents force-transmitting direct contact in this area.
  • the tubular body of the inner section can have a tubular part that can be inserted into the pipe of the wall and has an end flange that limits the depth of insertion into the pipe, and then a profile tubular part enlarged compared to the tubular part with at least two opposing elastic retaining claws with latching hooks and an end socket for one seat ring and have a backflow preventer having a flap.
  • These structural details of the tubular body make installation much easier and offer a high level of security against installation errors. Due to the elasticity of the retaining claws, the locking hooks are anchored to the abutments of the retaining structure and in such a way that the tightening tension required for tightness is generated and retained in the axial direction.
  • the backflow preventer fits neatly with its seat ring into the socket of the profile pipe part, so that the flap has the necessary freedom of movement.
  • a rotatably attached eccentric lever is provided for the tool-free installation and removal of the backflow preventer having the seat ring and the flap on the inner section of the pressure pipe, which can be brought into action on an extension of the backflow preventer, preferably its seat ring.
  • at least one plug-in lug which is formed approximately opposite the eccentric lever and into which a plug-in pin of the backflow preventer can be inserted, can be formed on the inner section when the backflow preventer is installed.
  • Installation is particularly convenient because the plug-in pin is to be inserted into the plug-in flap when the backflow preventer is tilted, and Then the eccentric lever must be brought together with the extension, so that the tightening tension required for tightness between the seat ring of the backflow preventer and the socket of the tubular body, preferably via a seal, can be generated to the required extent by turning the eccentric lever over the extension.
  • the removal of the backflow preventer is correspondingly simple, since only the eccentric lever needs to be turned until the extension of the backflow preventer comes free so that it can be tilted away and lifted out of the tab with the plug-in pin. If necessary, a pressure element is even provided on the eccentric lever which, when the eccentric lever is rotated to remove the backflow preventer, presses it out of the socket of the tubular body.
  • a pivotable clamping bracket can be provided on the outside of the non-return valve for tool-free connection / disconnection of the pump pressure connection structure to / from the non-return valve.
  • the holding structure for the tubular body of the inner section that is attached to the wall expediently has at least two opposite insertion openings with abutments for the latching hooks of the retaining claws of the tubular body. Due to the elasticity of the retaining claws, the latching hooks engage the abutments automatically and generate the necessary tightening tension.
  • the insertion openings and the abutments are placed in such a way that pressure from the outside on the latching hooks releases the engagement and the tubular body can be pulled out of the tube of the wall, expediently together with the seal.
  • the holding structure can encompass the fixed pipe body or the pipe in the wall from above in the manner of a bridge, so that there are no undercuts collecting contamination below the pressure pipe.
  • the tubular body of the outer section expediently has a stop on the inside which, on one side, limits the insertion depth of a connection piece inserted into the tubular body with a protrusion for the discharge and on the other side the space between the two tubular bodies. This measure simplifies assembly and avoids assembly errors.
  • the tubular body of the outer section can have blocks with latching receptacles for elastic latching hooks on the outside adjacent to the flange.
  • a lifting station H in Fig. 1
  • an underfloor lifting system has a plastic container 1 which is composed of a lower part 1a and an upper part 1b.
  • the upper part 1b is formed with a circumferential flange 2, which can be used in a sealing plane when installed under the floor.
  • the lifting station H could be used for free installation, if necessary without the peripheral flange 2.
  • the lifting station H is in Fig. 1 shown open at the top. However, either a cover or an attachment can be installed there.
  • Wastewater flows through an inlet Z into the container 1 and is pumped upwards via an outlet A from the container 1 and via a discharge line L indicated by dashed lines by a pump P used.
  • the pump P is equipped with a pressure connection structure 3 which can be connected to a backflow preventer 5 via a clamp 4, and can be manually separated from the backflow preventer 5 by actuating the clamp 4, for example. B. to remove the pump P.
  • the drain A has a pressure pipe D which is tightly and firmly mounted in a wall 18 of the upper part 1 b and which has an outer section 7 and an inner section 13.
  • the inner and outer sections 13, 7 are separate tubular bodies 29, 30 which are installed decoupled against a mutual force transmission.
  • the outer section 7 has a fastening flange 8 at one end which is screwed into a receptacle 28 of the wall 18. From the other end of the outer section 7 there is a connection piece 12 for connecting the discharge line L before.
  • two blocks 9 are also attached to the outside of the outer section 7, which have abutments 10 and insertion openings 11 for latching hooks (not shown) in the connection area of the discharge line L.
  • the tubular body 30 of the inner section 13 is attached to a wall 18, for. B. screwed or molded holding structure 14 with two opposing holding claws 15 here, for example.
  • a cover or an attachment can be installed in the upper opening 16 of the upper part 1b.
  • an eccentric lever 17 is rotatably arranged, which is used for manual installation and removal of the non-return valve 5 without tools.
  • the inner and outer sections 13, 7 are the separate, one-piece tubular bodies 29 and 30, the tubular body 30 of the inner section 13 being a round tube part 31 and a profile tube part 22 with a larger inner cross-section and a socket 23 for a seat ring 24 of the backflow preventer 5 having a pivotable flap 25.
  • the eccentric lever 17 is rotatably attached to the seat ring 24 of the backflow preventer 5 and on top of the profile tube part 22 for form-fitting and force-fitting interaction with an extension 26.
  • the round tube part 31 of the tube body 30 inserted into the tube 19 of the wall 18 carries a seal 20 '; In the receptacle 28, the flange 8 is also sealed by a seal 20.
  • the pump pressure connection structure 3 is clamped with the clamping bracket 4 in the seat ring 24 of the backflow preventer 5, preferably via a seal.
  • the outer circumference of the round pipe part 31 of the pipe body 30 has at least one circumferential groove 33, and the round pipe part 31 with the seal 20 'is inserted so far into the pipe 19 of the wall 18 that there is a space S between the pipe bodies 29 and 30 .
  • the seal 20 ′ with which the tubular body 30 is inserted into the tube 19 has an angled cross section with an annular part 34 and an outer flange 35 and at least one inner rib 34 ′ that engages in the circumferential groove 33.
  • the tubular body 30 is with the in Fig.
  • the eccentric lever 17 is fixed rotatably about a vertical axis, z. B. screwed, the one handle 38 for manual rotation, and an eccentric to the axis of rotation recess 39 for engaging the extension 26 on Has seat ring 24 of the backflow preventer 5. Furthermore, at least one retaining tab 37 is integrally formed on the profile tube part 32 at the bottom, into which a plug pin 36 on the seat ring 24 of the non-return valve 5, as shown, can be inserted.
  • the tight fit of the non-return valve 5 positioned by means of the plug pin 36 is produced by means of the eccentric lever 17 and its recess 39, which is designed eccentrically relative to the axis of rotation so that, depending on the extent of the rotation of the eccentric lever 17, the extension 26 is pulled in the direction of the wall 18 .
  • the recess 39 is open at at least one end ( Fig. 5 ), so that the extension 26 comes free from the recess 39 with a corresponding rotation of the eccentric lever 17 and then the backflow preventer 5 in Fig. 3 is tilted to the right and released from the socket 23, the plug-in pin 36 being pulled out of the plug-in tab 37. The process is reversed when installing.
  • the clamping bracket 4 shown is also pivotably mounted on the seat ring 24 of the backflow preventer 5 and works together with tightening surfaces on the pump pressure connection structure 3 in order to establish the tightness here and to be able to manually detach the pump P with the pressure connection structure 3 from the backflow preventer 5.
  • tubular bodies 29, 30 are separate components, are at a distance S from one another in the installed state, and the tubular body 30 is installed via the seal 20 'and on the wall 18 of the upper part 1b without direct contact, the inner and outer sections 7 and 13 or the tubular bodies 29 and 30 are mutually decoupled with respect to a force transmission (tilting forces and / or torsional forces). If the external section 7 is subjected to such forces, for example via the discharge line L or due to assembly inaccuracies when installing the lifting system H, these forces are not transmitted to the tubular body 30.
  • a force transmission tilt forces and / or torsional forces
  • Fig. 4 components mounted in the lower part 1a are shown in their mutual assignment.
  • the holding structure 14 for fixing the inner section 13 or its tubular body 30 is designed like a bridge and pushed from above over an upright apron 40 formed on the wall 18 and fixed with fastening screws 41.
  • the holding structure 14 could also be integrally formed on the wall 18.
  • insertion openings 42 are provided with abutments 43 behind them, on which the inserted holding claws 15 of the tubular body 30 can be latched with latching hooks 44 under tension.
  • the holding claws 15 are elastic and automatically snap into the locked position of the locking hooks 44 when inserted.
  • the locking hooks 44 only need to be pressed from the outside inwards until the locking hooks 44 emerge from the insertion openings 42.
  • Fig. 4 also illustrates a mechanism that can be operated by hand without tools for installing and removing the backflow preventer 5 to / from the pipe body 30.
  • This mechanism is not only useful for pipe bodies 30, 29 that are decoupled with regard to mutual force transmission, but also for one-piece pressure pipes in order to improve comfort during the Increase assembly / disassembly.
  • the eccentric lever 17 ( Fig. 5 ) is in Fig. 4 rotatably screwed on the tubular body 30 and has a plate 48 below the hand lever 38 in which the engagement recess 39 for the in Fig. 3 shown extension 26 of the seat ring 24 of the backflow preventer 5 is formed.
  • the engagement recess 39 follows an arc which is eccentric with respect to the axis of rotation of the eccentric lever 17 in order to connect the extension 26 ( Fig. 3 ) in the direction of the axis of rotation of the eccentric lever 17 or away from it.
  • the projection 26 is formed on a curved web 46 formed on the seat ring 24 in such a way that it can be aligned with an inlet opening 50 of the engagement recess 39 and brought into the engagement recess 39 by rotating the eccentric lever.
  • Fig. 4 illustrates the locked position of the eccentric lever 17.
  • the eccentric lever 17 is in Fig. 4 z. B. rotated clockwise until the extension 26 emerges from the engagement recess 39, and the backflow preventer 5 in Fig.
  • the plug-in tab 37 is formed, which has either a continuous slot or two separate slots 51 for the engagement of the plug-in pin 36 on the underside of the seat ring 24.
  • the lifting system H with the pipe bodies 29, 30 decoupled with regard to the mutual force transmission and the pipe body 30 decoupled with regard to the force transmission to the wall 18 forces acting from the outside generate deformations in the area of the passage of the pressure pipe D to a small extent, the Decoupling of the tubular body 30 via the seal 20 and the intermediate spaces X, S which can be selected as required, the proper connection of the pump pressure connection structure 3 with a retaining collar 27 ( Fig. 2 ) given installation position of the pump P in the lower part 1b. Even a possibly given misalignment between the pump pressure connection structure 3 and the mounted backflow preventer 5 could be compensated by hand thanks to the elasticity of the seal 20 '.
  • the seal 20 'thus assumes a double function, on the one hand, to seal the bushing and, on the other hand, to hold the tubular body 30 in the mounted position, which is movable to a limited extent.
  • An essential aspect of the invention is that all components that can be removed for maintenance, replacement or cleaning inside the lifting system H can be manipulated by hand without tools, which significantly increases the ease of use of the lifting system for the fitter or user and the difficulties with tools actuatable fasteners that are subject to corrosion or contamination.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Claims (11)

  1. Système de levage (H) pour eaux usées, en particulier système de levage au sol, comprenant un conteneur (1) et un tuyau de pression (D) monté latéralement et de manière étanche dans une paroi (18) du conteneur, un clapet anti-retour (5), une pompe (P) et une structure de raccordement de pression (2) de la pompe (P), dans lequel la structure de raccordement de pression (3) de la pompe (P) installée dans le récipient (1) est reliée à la section (13) de la conduite de pression (D) située à l'intérieur du récipient (1), par l'intermédiaire du disconnecteur de ce dernier (5), et une conduite d'évacuation (L) peut être raccordée à la section (7) de la conduite de pression (D) située à l'extérieur du récipient (1),
    caractérisé en ce que les deux sections (7, 13) de la conduite sous pression (D) sont des corps tubulaires séparés (29, 30) qui sont installés de manière découplée par rapport à une transmission mutuelle de force, dans lequel, pour le découplage, au moins un joint élastique (20') est prévu entre la section intérieure (13) et le récipient (1) et un espace intermédiaire libre (S) est prévu entre les corps tubulaires (29, 30) des deux sections (7, 13).
  2. Système de levage selon la revendication 1, au moins une des revendications précédentes, caractérisé en ce que le corps tubulaire (30) de la section intérieure (13) est découplé de la paroi (18) du récipient (1) en ce qui concerne une transmission de force également par le joint élastique (20') et un espace libre (X) entre le corps tubulaire (30) et la paroi (18) du récipient (1).
  3. Système de levage selon la revendication 1, au moins une des revendications précédentes, caractérisé en ce que le corps tubulaire (29) de la section extérieure (7) présente une bride (2) qui peut être vissée sur ou dans un réceptacle (28) de la paroi (18), de préférence par l'intermédiaire d'un joint annulaire (20), et en ce que le corps tubulaire (30) de la section intérieure (13) est inséré dans un tube (19) de la paroi (18), avec le joint (20') placé entre les deux, et est verrouillé de manière amovible sous une tension de serrage axiale dans une structure de retenue (14) formée sur ou fixée à la paroi (18) pour être installé ou retiré sans outils.
  4. Système de levage selon la revendication 1, caractérisé en ce que le joint élastique (20') est tubulaire à brides avec une section transversale angulaire et présente au moins une nervure circonférentielle (34) qui peut être mise en prise avec au moins une rainure circonférentielle extérieure (33) du corps tubulaire (30) de la section intérieure (13).
  5. Système de levage selon la revendication 3, caractérisée en ce que le corps tubulaire (30) de la section intérieure (13) est une partie tubulaire ronde (31) qui peut être insérée dans le tube (19) de la paroi (18), de préférence avec une bride d'extrémité (21) limitant la profondeur d'insertion dans le tube (19), et une partie tubulaire profilée (32) qui s'y raccorde, qui est élargie par rapport à la partie tubulaire ronde (31) et qui présente au moins deux griffes de retenue (15) élastiques opposées avec des crochets d'encliquetage (44) et avec une douille (23) côté extrémité pour le disconnecteur (5) présentant une bague de siège (24) et un clapet (25).
  6. Système de levage selon la revendication 5,
    caractérisé en ce qu'un levier excentrique (17) monté de manière rotative est prévu sur la partie intérieure (13) pour le montage et le démontage sans outil du disconnecteur (5) comprenant la bague de siège (24) et le clapet (25), qui peut être mis en prise avec un prolongement (26) du disconnecteur (5), et au moins une languette d'enfichage (37) formée d'un seul tenant pour au moins une broche d'enfichage (36) montée sur le disconnecteur (5) est prévue sur la partie intérieure (13) opposée au levier excentrique (17).
  7. Système de levage selon la revendication 6, caractérisée en ce qu'un étrier de serrage pivotant (4) est prévu sur le côté extérieur du disconnecteur (5) pour la connexion/déconnexion sans outil de la structure de connexion de pression (3) au/dans le disconnecteur (5).
  8. Système de levage selon la revendication 3, caractérisé en ce que la structure de retenue (14), qui est fixée à la paroi (18), de préférence vissée ou moulée, présente au moins deux ouvertures d'insertion (42) opposées avec des butées (43) pour des crochets de verrouillage (44) ou des griffes de retenue (15) du corps tubulaire (30).
  9. Système de levage selon la revendication 8, caractérisé en ce que la structure de maintien (14) comprend le corps tubulaire fixe (30) de la section intérieure (13) par le haut à la manière d'un pont.
  10. Système de levage selon au moins une des revendications précédentes, caractérisé en ce que le corps tubulaire (29) de la section extérieure (7) présente à l'intérieur une butée (52) qui limite d'un côté la profondeur d'insertion d'une pièce de raccordement (12) insérée avec une saillie dans le corps tubulaire (29) et de l'autre côté l'espace intermédiaire (S) entre les deux corps tubulaires (29, 30).
  11. Système de levage selon au moins l'une des revendications précédentes, caractérisé en ce que le corps tubulaire (29) de la section extérieure (7) présente, sur la face extérieure à peu près adjacente à la bride (8), des blocs (9) opposés avec des logements d'encliquetage (10) et/ou des ouvertures d'insertion (11) pour des crochets d'encliquetage élastiques, qui sont prévus dans la zone de raccordement sur la ligne de décharge (L) et peuvent être insérés sans outil dans les logements d'encliquetage lorsque la ligne de décharge (L) est raccordée avec une tension de serrage.
EP18202460.4A 2018-10-25 2018-10-25 Système de levage Active EP3643845B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18202460.4A EP3643845B1 (fr) 2018-10-25 2018-10-25 Système de levage
PL18202460T PL3643845T3 (pl) 2018-10-25 2018-10-25 Urządzenie rozdrabniająco-przepompowujące
EP19216906.8A EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage
PL19216906T PL3656936T3 (pl) 2018-10-25 2018-10-25 Urządzenie rozdrabniająco-przepompowujące

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18202460.4A EP3643845B1 (fr) 2018-10-25 2018-10-25 Système de levage

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP19216906.8A Division EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage
EP19216906.8A Division-Into EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage

Publications (2)

Publication Number Publication Date
EP3643845A1 EP3643845A1 (fr) 2020-04-29
EP3643845B1 true EP3643845B1 (fr) 2020-09-09

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EP18202460.4A Active EP3643845B1 (fr) 2018-10-25 2018-10-25 Système de levage
EP19216906.8A Active EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage

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Application Number Title Priority Date Filing Date
EP19216906.8A Active EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage

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PL (2) PL3656936T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685382B (zh) * 2021-09-24 2023-07-04 江苏徐工工程机械研究院有限公司 一种垂直举升排水车的工作装置姿态控制系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2853312A1 (de) 1978-12-09 1980-06-26 Albert Blum Auffangbehaelter, insbesondere fuer abwasserhebeanlagen
US6059208A (en) * 1997-09-11 2000-05-09 Interon Corporation Buried plastic sewage sump
US7520736B2 (en) 2005-03-29 2009-04-21 Liberty Pumps Inc. Sewage handling system, cover, and controls
PL1944420T3 (pl) 2007-01-15 2009-09-30 Kessel Ag Instalacja podnosząca
PL2447429T3 (pl) 2010-10-27 2014-11-28 Kessel Ag Zawór zwrotny przeciwcofkowy
DE102015109241B4 (de) 2015-06-11 2021-09-23 ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft Rückstauverschluss

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3656936B1 (fr) 2021-08-18
EP3656936A1 (fr) 2020-05-27
PL3656936T3 (pl) 2022-01-17
EP3643845A1 (fr) 2020-04-29
PL3643845T3 (pl) 2021-03-08

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