EP3643845A1 - Système de levage - Google Patents

Système de levage Download PDF

Info

Publication number
EP3643845A1
EP3643845A1 EP18202460.4A EP18202460A EP3643845A1 EP 3643845 A1 EP3643845 A1 EP 3643845A1 EP 18202460 A EP18202460 A EP 18202460A EP 3643845 A1 EP3643845 A1 EP 3643845A1
Authority
EP
European Patent Office
Prior art keywords
tubular body
lifting system
container
section
wall
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
EP18202460.4A
Other languages
German (de)
English (en)
Other versions
EP3643845B1 (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 EP19216906.8A priority patent/EP3656936B1/fr
Priority to PL19216906T priority patent/PL3656936T3/pl
Priority to PL18202460T priority patent/PL3643845T3/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

  • the invention relates to a lifting system according to the preamble of claim 1 or claim 14.
  • EP 1 944 420 A1 is the pressure pipe penetrating the wall of the container through a lateral bore through an external nut on the inside against the wall of the plastic container, so that the external section protrudes from the wall and the internal section protrudes from the wall inwards.
  • Inside sealing elements ensure the required tightness under the tightening tension of the nut.
  • the backflow preventer is screwed to the inner section of the pressure pipe, so that tools have to be used to remove and install the backflow preventer and / or the pressure pipe (e.g. for cleaning or maintenance). This is due to unavoidable contamination and corrosion in this area. B. on the screws and with restricted visibility is very tedious and uncomfortable, and also requires considerable skill.
  • the invention is based on the object of creating a lifting system of the type mentioned which is distinguished by convenient creation, maintenance and cleaning and improved operational safety.
  • the object is achieved with the features of claim 1 or the features of claim 14.
  • the tubular body of the inner section can be attached by separating it from the outer section using simple structural means in such a way that it can be easily installed and removed by hand, that is, 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.
  • backflow preventer which according to one aspect of the invention with its own inventive significance, even with a lifting system already installed (underfloor or freely installed lifting system), without tools, only manually by means of the eccentric lever and the at least one plug pin, for example for cleaning or maintenance or for the first installation can be installed and removed.
  • This principle of the tool-free manual handling of the backflow preventer is also expedient for those lifting systems which contain a one-piece pressure pipe, for example for the backflow preventer EP 1 944 420 A1 , the overall disclosure of which is incorporated here by reference.
  • the decoupling with regard to the transmission of force between the tubular bodies is advantageously achieved by at least one elastic seal which can be installed between the inner section or its tubular body and the container, and preferably by a free space between the two tubular bodies. Even if the wall of the container should be deformed by the external section due to external forces when it is passed through the wall, the tubular body of the internal section remains permanently in its desired position.
  • the tubular body of the outer section can have a flange which can be screwed from the outside to 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. With an axial tightening tension, it can be releasably locked in a holding structure molded or attached to the wall for tool-free installation and removal. All manipulations on or with the inner section can thus be carried out manually without tools, which considerably increases the comfort for the user or fitter.
  • the joint which is responsible for the decoupling can be of flange-tube design with an angular cross-section and at least on the inside have at least one circumferential rib which engages in at least one externally circumferential groove of the tubular body of the inner section can be brought.
  • This facilitates the assembly of the tubular body, since the seal can be applied in advance and holds its position during assembly.
  • the angular cross-section offers the advantage of an annular flange consisting of the sealing material, which is clamped 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 be a round tube part which can be inserted into the tube of the wall and has an end flange which limits the insertion depth into the tube, and then an enlarged profile tube part compared to the round tube part with at least two opposite elastic holding claws with latching hooks and an end socket for one seat ring and have a flap backflow preventer.
  • These structural details of the tubular body make assembly considerably easier and offer high security against installation errors. Due to the elasticity of the holding claws, the latching hooks anchor on the abutments of the holding structure and in such a way that the tightening tension required for tightness is generated and held in the axial direction.
  • the backflow preventer with its seat ring fits neatly into the socket of the profile tube part, so that the flap has the necessary play.
  • a rotatably mounted 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 attacked on an extension of the backflow preventer, preferably its seat ring.
  • at least one plug-in tab which is formed approximately opposite the eccentric lever and into which a plug-in pin of the non-return valve can be inserted when the non-return valve is installed can be formed on the inner section.
  • a pivotable clamping bracket can be provided on the outside of the backflow preventer for connecting / disconnecting the pump pressure connection structure to / from the backflow preventer without tools.
  • the holding structure for the tubular body of the inner section which is preferably screwed or molded onto the wall, expediently has at least two opposite insertion openings with abutments for the latching hooks of the holding claws of the tubular body.
  • the locking hooks automatically come into engagement due to the elasticity of the holding claws on the abutments and generate the necessary tightening tension.
  • the insertion openings and the abutments are placed in such a way that the engagement is released by external pressure on the latching hooks and the tube body can be pulled out of the tube of the wall, expediently together with the seal.
  • the holding structure can surround the fixed tubular body or the tube in the wall in a bridge-like manner from above, so that there are no undercuts collecting dirt below the pressure tube.
  • the tubular body of the outer section expediently has a stop on the inside, which on one side limits the insertion depth of a connecting piece inserted into the tubular body with a protrusion for the discharge and on the other side limits the space between the two tubular bodies. This measure simplifies assembly and avoids assembly errors.
  • the lifting system can at least be predominantly made of plastic front parts and is, preferably, an underfloor lifting system.
  • the tubular body of the outer section can have blocks on the outside adjacent to the flange with latching receptacles for elastic latching hooks, which are provided in the connection area and the derivation and can be inserted into the latching receptacles without tools when connecting the derivation with tightening tension.
  • 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 underground.
  • the lifting unit H could be used for free installation, if necessary then without the peripheral flange 2.
  • the lifting unit H is in Fig. 1 shown open above. However, either a cover or an attachment can be mounted there.
  • Waste water 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 an inserted pump P.
  • the pump P is equipped with a pressure nozzle structure 3, which can be connected to a backflow preventer 5 via a tensioning bracket 4, and can be manually separated from the backflow preventer 5 by actuating the tensioning bracket 4, e.g. 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 1b 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 in a decoupled manner against 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 connecting piece 12 for connecting the discharge line L before.
  • two blocks 9 are furthermore 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 derivation L.
  • the tubular body 30 of the inner portion 13 is attached to a wall 18, for. B. screwed, or molded holding structure 14 with here, for example, two opposite holding claws 15.
  • a cover or an attachment part can be installed in the upper opening 16 of the upper part 1b.
  • an eccentric lever 17 is rotatably arranged, which is used for the tool-free manual installation and removal of the check valve 5.
  • 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 comprising 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 mounted for positive and non-positive interaction with an extension 26 on the seat ring 24 of the check valve 5 and on top of the profile tube part 22.
  • 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 tensioned with the tensioning bracket 4 in the seat ring 24 of the backflow preventer 5, preferably via a seal.
  • At least one circumferential groove 33 is formed on the round tube part 31 of the tubular body 30, and the round tube part 31 with the seal 20 'is inserted into the tube 19 of the wall 18 to such an extent that there is a space S between the tube bodies 29 and 30 .
  • the seal 20 'with which the tubular body 30 is inserted into the tube 19 has an angular cross section with an annular part 34 and an outer flange 35 and at least one inner rib 34' which engages in the circumferential groove 33.
  • the tubular body 30 is with the in Fig.
  • the eccentric lever 17 is rotatably fixed above a vertical axis, for. B. screwed, a handle 38 for manual rotation, and an eccentric to the axis of rotation recess 39 for engaging the extension 26 on Seat ring 24 of the backflow preventer 5. Furthermore, at least one retaining tab 37 is integrally formed on the profile tube part 32, into which a plug pin 36 on the seat ring 24 of the check valve 5 can be inserted, as shown.
  • the tight fit of the backflow preventer 5 positioned by means of the plug-in 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 in such a way that the extension 26 is pulled towards the wall 18 depending on the extent of the rotation of the eccentric lever 17 .
  • the recess 39 is open at least at one end ( Fig. 5 ), so that the extension 26 comes out of the recess 39 when the eccentric lever 17 is rotated accordingly and then the check valve 5 in Fig. 3 is tilted to the right and released from the socket 23, the plug 36 being pulled out of the plug-in tab 37. The procedure is reversed for installation. The one in the Fig.
  • the clamping bracket 4 shown is, moreover, pivotably mounted on the seat ring 24 of the backflow preventer 5 and cooperates with tightening surfaces on the pump pressure connection structure 3 in order to establish the tightness here and to be able to release the pump P with the pressure connection structure 3 from the backflow preventer 5 by hand.
  • tubular bodies 29, 30 are separate components, have the spacing S from one another in the installed state, and the tubular body 30 is installed without direct contact via the seal 20 'and on the wall 18 of the upper part 1b, 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 derivative L or due to inaccuracies in assembly 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 assembled components in lower part 1a are illustrated in their mutual assignment.
  • the holding structure 14 for fixing the inner section 13 or its tubular body 30 is designed in a bridge-like manner and pushed from above over an upstanding skirt 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 locked with locking hooks 44 under tension.
  • the holding claws 15 are elastic and automatically snap when inserted into the locked position of the locking hooks 44 shown. To remove the tubular body 30 by hand without tools, only the locking hooks 44 need to be pressed inwards from the outside until the locking hooks 44 emerge from the insertion openings 42.
  • Fig. 4 also illustrates a tool-free, manually operable mechanism for installing and removing the check valve 5 on / from the tubular body 30.
  • This mechanism is useful not only for tubular bodies 30, 29 decoupled with regard to mutual force transmission, but also for one-piece pressure pipes, for the convenience of Increase assembly / disassembly.
  • the eccentric lever 17 ( Fig. 5 ) is in Fig. 4 screwed rotatably on the tubular body 30 and has a plate 48 below the hand lever 38, in the underside of which the engagement recess 39 for the in Fig. 3 shown extension 26 of the seat ring 24 of the check valve 5 is formed.
  • the engagement recess 39 follows an arc which extends eccentrically with respect to the axis of rotation of the eccentric lever 17 in order to extend the extension 26 ( Fig. 3 ) to move towards or away from the axis of rotation of the eccentric lever 17.
  • the projection 26 is formed on an arch-shaped web 46 formed on the seat ring 24 such that it can be aligned with an entry opening 50 of the engagement recess 39 and can be brought into the engagement recess 39 by rotating the eccentric lever.
  • Fig. 4 illustrates the locked position of the eccentric lever 17. In order to be able to release the backflow preventer 5, the eccentric lever 17 in Fig. 4 e.g. 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 either has 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. Furthermore, for. B. molded onto the seat ring 24 two guide blocks 45 which are guided during assembly along the outer sides of a block 47 formed on the tubular body 30. Finally, on the seat ring 24 z. B. an overhead latching projection 46 for locking the clamp 4 in the in Fig. 2 provided open position provided.
  • An essential aspect of the invention is that all components that can be removed for maintenance, exchange or cleaning inside the lifting system H can be manipulated by hand without tools, which considerably increases the ease of use of the lifting system for the fitter or user and the difficulties with tools fasteners that are actuatable, 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)
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
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
PL18202460T PL3643845T3 (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-Into EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage
EP19216906.8A Division EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage

Publications (2)

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

Family

ID=63998532

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19216906.8A Active EP3656936B1 (fr) 2018-10-25 2018-10-25 Système de levage
EP18202460.4A Active EP3643845B1 (fr) 2018-10-25 2018-10-25 Système de levage

Family Applications Before (1)

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

Country Status (2)

Country Link
EP (2) EP3656936B1 (fr)
PL (2) PL3656936T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685382A (zh) * 2021-09-24 2021-11-23 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

Citations (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
US20060228222A1 (en) * 2005-03-29 2006-10-12 Pohler Donald M Sewage handling system, cover, and controls
EP1944420A1 (fr) 2007-01-15 2008-07-16 Kessel GmbH Système de levage
EP2447429A1 (fr) * 2010-10-27 2012-05-02 Kessel AG Fermeture de retenue
EP3103932A1 (fr) * 2015-06-11 2016-12-14 ACO Severin Ahlmann GmbH & Co. KG Fermeture de retenue

Patent Citations (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
US20060228222A1 (en) * 2005-03-29 2006-10-12 Pohler Donald M Sewage handling system, cover, and controls
EP1944420A1 (fr) 2007-01-15 2008-07-16 Kessel GmbH Système de levage
EP2447429A1 (fr) * 2010-10-27 2012-05-02 Kessel AG Fermeture de retenue
EP3103932A1 (fr) * 2015-06-11 2016-12-14 ACO Severin Ahlmann GmbH & Co. KG Fermeture de retenue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685382A (zh) * 2021-09-24 2021-11-23 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

Also Published As

Publication number Publication date
EP3643845B1 (fr) 2020-09-09
EP3656936B1 (fr) 2021-08-18
PL3643845T3 (pl) 2021-03-08
PL3656936T3 (pl) 2022-01-17
EP3656936A1 (fr) 2020-05-27

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