EP1368543A1 - Surface draining arrangement - Google Patents
Surface draining arrangementInfo
- Publication number
- EP1368543A1 EP1368543A1 EP02706764A EP02706764A EP1368543A1 EP 1368543 A1 EP1368543 A1 EP 1368543A1 EP 02706764 A EP02706764 A EP 02706764A EP 02706764 A EP02706764 A EP 02706764A EP 1368543 A1 EP1368543 A1 EP 1368543A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover part
- magnet
- drainage arrangement
- permanent magnet
- surface drainage
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
Definitions
- the invention relates to a surface drainage arrangement, in particular a drainage channel, street drain, yard drain or manhole cover, comprising a body that can be built into the floor, a cover part that can be fastened on an upper edge of the body, and at least one fastening element for fastening the cover part on the body , according to the preamble of claim 1.
- Such surface drainage arrangements in particular drainage channels or the like, are known, the cover part being attachable to the body by means of fastening arrangements.
- the locking of the cover part is achieved in that, for example, a leaf-shaped cover grate locking spring with oppositely formed projections engages in recesses in the side walls of the channel body.
- the cover grating locking spring is thus held essentially tension-free in the body.
- the locking spring is, however, arranged transversely to the longitudinal axis of the channel and inside the channel. This means that there is no free channel cross-section.
- drainage channels with fastening devices are known in which the ends of the crossbeams can be used in recesses which are located in the inner side walls of the channels.
- the crossmember runs transversely to the longitudinal axis of the gutter in the interior of the gutter and comprises fastening devices in order to fasten the cover to the crossmember and thereby to the gutter.
- a major disadvantage of the known drainage devices is that a relatively high tensile force has to be exerted in order to release the lock and lift off the cover part.
- manufacture and assembly of the known fastening arrangements is rather expensive and complex. Since the lock can be released with conventional tools, the drainage devices are not vandal-proof.
- the invention is therefore based on the object of developing a surface dewatering device with a fastening element of the type mentioned at the outset in such a way that a durable securing of the cover part with a simple assembly of the fastening element and a simple lifting of the cover part is ensured.
- a basic idea of the invention is to lock covers on drainage devices, such as drainage channels, yard drains, street drains and the like. chen by magnetic effect. Permanent magnets are used. The use of permanent magnets enables the cover part to be locked on the body without additional movable locking parts. The holding force of the permanent magnets used is determined by the choice of magnets, depending on the request. In addition, the grate design can be freely selected. If the cover part has to be detached from the body, a special tool can be used in the borderline case. By inserting the tool into the magnetic field, the magnetic holding forces are reduced. As a result, the lock can be released and the cover part can be easily removed from the body.
- the magnet can preferably be arranged in an opening provided on an upper region of the body wall.
- the magnet can be attached to the body wall by inserting, riveting, gluing or otherwise.
- the franking is dimensioned such that the magnet is completely arranged in the franking, the end surface of the magnet coming into contact with the cover part attached.
- the cover part which is made of steel or the like, is held on the body by the magnetic holding forces.
- the magnet is attached to the cover part.
- the cover part can then be locked to the body by placing a metal frame on the upper edge of the body wall, which serves to reinforce the body wall.
- Bar magnets are preferably used.
- the bar magnet is arranged on the edge region of the cover part.
- the cover part is locked to the body by the magnetic holding forces.
- the strength of the magnetic holding forces can be determined by the choice of the magnet.
- the cover part can be released from the channel body by exerting a higher force than the magnetic holding force.
- the magnet can also be attached in the frame, which is preferably made of metal.
- the magnet is attached to the franking provided in the frame by insertion, the franking being dimensioned accordingly.
- the magnet preferably has an essentially U-shape. This shape enables the cover part to be detached from the body in a particularly simple manner.
- the magnet is arranged in the channel wall in such a way that the two magnet legs are attached almost completely in the franking.
- the magnetic connection between the metallic cover part and the body is achieved by the two end faces of the magnetic legs.
- an opening is provided in the cover part. This opening is dimensioned such that on the one hand it corresponds to the clearing of the body wall and on the other hand the width of the opening corresponds to the length of the magnet interior. This dimensioning is necessary because the magnetic field can be weakened by using a special tool.
- the opening in the cover part is preferably designed as a through opening, which enables engagement with the tool
- the passage opening is provided with a seal.
- the seal can be cut out during cleaning work, which allows free access to the inside of the magnet. This ensures a long lifespan for the magnet.
- a shielding tube is preferably used, which is made of a highly permeable alloy, in particular a permalloy alloy.
- the relative permeability can reach values up to about 10 5 .
- the magnetic field lines are then pushed away from the shield.
- the shield itself and the inside of the shielding tube remain field-free.
- the shielding tube has a rectangular cross section with essentially the same dimensions as the inside of the magnet.
- the magnetic field limes are deflected. This creates a magnetic field-free space inside the magnet.
- the magnetic field can preferably be weakened by introducing a tool which has a bar magnet at one end. It must de Lange the bar magnet Correspond to the width of the interior of the U-shaped magnet. The bar magnet is inserted into the inside of the U-shaped magnet in such a way that the poles of the two magnets repel each other. The magnetic field is thus weakened and the cover part easily detached from the body.
- an inaccessible fastening device can preferably be provided.
- the fastening device has a clearance provided on the cover part or on the body and a projection which engages in it and which is located on the body or on the cover part.
- FIG. 1 shows a cross section through a drainage channel with a cover part fastened on a body by a magnet and an opposing engagement device;
- Figure 2 shows a cross section through a drainage channel with attached to an Rmnenkorper by magnets
- FIG. 3 shows an enlarged partial cross section along the lines III-III according to FIG. 1 with the shielding tool inserted;
- Figure 4 is a plan view of a U-shaped magnet and a tubular shielding tool used to weaken the magnetic field between the two magnet poles;
- Figure 5 is a perspective view of a U-shaped
- Magnets as well as a rod-shaped shielding tool square cross-section, for weakening the magnetic field
- Figure 6 is a perspective view of a U-shaped magnet with a tool for shorting the magnetic field
- FIG. 7 shows a cross section through a drainage channel with a cover part fastened on an internal body with a bar magnet and an opposing engagement device.
- FIG. 1 shows a drainage channel in cross section, with a channel body 10 and an attached cover part 20.
- the channel body 10 has a U-shaped cross section.
- the race cross section can also have a different shape, for example a V shape.
- the channel body 10 has channel walls 11, on the upper edges 12 of which a metallic frame 13 serves to reinforce the upper edge 12 and to support the cover part 20.
- the channel wall 11 has a franking 14, which corresponds to a franking 15 in the frame 13.
- a permanent magnet 30 is inserted with a friction fit. The magnet 30 is additionally held in the frankings 14, 15 by the magnetic field acting between it and the frame 13.
- the magnet is attached to the channel body by means of a screw or rivets or by gluing.
- an opening 22 is provided in the cover part 20 at an edge region 21 which corresponds to the channel wall 11.
- the magnetic field lines can be deflected through the opening 22 by means of an engaging tool 40, thereby weakening the magnetic holding forces.
- the tool 40 consists of a permalloy alloy with a very high permeability.
- a clearance 23 is formed in the cover part 20 on the body wall 11 lying opposite the permanent magnet 30.
- a projection 16 is provided on the frame 13, which engages in the clearance 23 when the cover part 20 is placed on the channel body 10.
- the franking can also be provided on the frame and the projection on the cover part.
- FIG. 2 also shows a cross section through a drainage channel with cover part 20 fastened on a channel body 10 by magnets 30.
- the channel body also has a U-shaped cross section, as shown in FIG. 1, the cross section not being limited to this shape only.
- the magnets are also designed as U-shaped permanent magnets 30.
- the permanent magnets 30 are arranged on the opposite sides of the two channel walls 11.
- the cover part 20 has openings 22 which correspond to the magnet interior.
- the openings 22 are designed as through openings in such a way that the magnetic field is weakened under the action of a tool 40 and the cover part 20 is detached from the body in a simple manner.
- Figure 3 shows an enlarged partial cross section along the
- the magnet 30 is arranged in a franking 14 of the channel wall 11 and in a corresponding franking 15 in the frame.
- the magnet has a U-shape, the two magnet legs 31 and 32 being arranged completely in the clearances.
- the opening 22 of the cover part 20 has a width which essentially corresponds to the distance between the magnetic legs 31, 32.
- a tool 40 which is tubular in shape, engages in the opening 22 of the cover part 20.
- the field lines are deflected by the engagement of the tool 40, since the tool 40 is made of a metallic alloy with high permeability. So-called shielding in the magnetic field is achieved. The magnetic holding forces are weakened and the cover part is easily removed.
- FIG. 4 shows a U-shaped permanent magnet according to FIG. 3 with a shielding tool 40 inserted between the two magnetic legs 31, 32.
- the shielding tool 40 has a tubular cross section, the outer diameter D of the tool 40 being smaller than the width b between the two magnetic legs 31 and 32. From the course of the magnetic field lines, it can be seen that they are bent around the U-shaped shielding tool 40 and thus there is a free space in the interior of the magnet without a magnetic effect. This known shielding effect leads to the desired weakening of the magnetic holding forces.
- FIG. 5 shows a perspective illustration of a U-shaped permanent magnet 30 with a tool 40 inserted between the two magnetic legs 31, 32.
- the tool 40 has the shape of a tube with a rectangular cross section, the base area of the tube essentially being the dimensions of the magnet interior equivalent. Thus, when the tool 40 is inserted into the magnet interior, it becomes a full one Shielding reached. The magnet lines are deflected in such a way that the magnet holding forces decrease.
- FIG. 6 shows a perspective illustration of a U-shaped magnet 30 with a tool 40 for short-circuiting the magnetic field.
- the tool 40 is designed such that a rod-shaped permanent magnet 35 is attached to its end.
- the tool 40 engages in the opening of the cover part, the poles of the two magnets repelling one another. The magnetic field is thus "short-circuited" and the locking is released in a simple manner.
- FIG. 7 shows a cross section through a drainage channel with a cover part 20 fastened on a channel body 10 with a permanent magnet 30 and an opposing engagement device 16, 23.
- the permanent magnet 30, which is designed as a bar magnet, is in a recess 24 of the cover part 20 appropriate.
- a frame 13 is provided on the upper edge 12 of the channel body 10, for reinforcing the upper edge 12.
- the frame 13 is made of metal.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001112842 DE10112842B4 (en) | 2001-03-16 | 2001-03-16 | Surface draining arrangement |
DE10112842 | 2001-03-16 | ||
PCT/EP2002/002907 WO2002075065A1 (en) | 2001-03-16 | 2002-03-15 | Surface draining arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1368543A1 true EP1368543A1 (en) | 2003-12-10 |
EP1368543B1 EP1368543B1 (en) | 2005-11-09 |
Family
ID=7677798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02706764A Expired - Lifetime EP1368543B1 (en) | 2001-03-16 | 2002-03-15 | Surface draining arrangement |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1368543B1 (en) |
DE (2) | DE10112842B4 (en) |
ES (1) | ES2252429T3 (en) |
WO (1) | WO2002075065A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1031302C2 (en) * | 2006-03-03 | 2007-09-04 | Struyk Verwo Groep B V | Road surface drainage unit with cover, e.g. road gully, has cover lock with magnetic blocking part for fixing lock bolt in protruding or retracted position |
CN102505754B (en) * | 2006-08-17 | 2015-01-14 | 北京四方如钢混凝土制品有限公司 | Linear drainage U-shaped groove component |
CN103526819A (en) * | 2013-09-16 | 2014-01-22 | 安徽华普节能房屋材料有限责任公司 | Drainage pipeline with oval grooves |
CN106087783B (en) * | 2016-06-03 | 2018-08-21 | 重庆交通大学 | A kind of U-shaped culvert hydraulic fracture sizing method in mud-rock flow area |
CN110629701A (en) * | 2019-09-06 | 2019-12-31 | 中国建筑第八工程局有限公司 | Vehicle flow limiting pile and construction method thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2633444A1 (en) * | 1976-07-24 | 1978-01-26 | Buderus Eisenwerk | Draining gulley with frame and covering grid - has sunk permanent magnets for clamping grid on gulley frame |
JP2000240084A (en) * | 1999-02-24 | 2000-09-05 | Chikatan:Kk | Manhole cover structure |
JP4169430B2 (en) * | 1999-04-14 | 2008-10-22 | 日之出水道機器株式会社 | Closing structure of through hole of cover plate in manhole cover |
-
2001
- 2001-03-16 DE DE2001112842 patent/DE10112842B4/en not_active Expired - Fee Related
-
2002
- 2002-03-15 ES ES02706764T patent/ES2252429T3/en not_active Expired - Lifetime
- 2002-03-15 EP EP02706764A patent/EP1368543B1/en not_active Expired - Lifetime
- 2002-03-15 DE DE50204864T patent/DE50204864D1/en not_active Expired - Fee Related
- 2002-03-15 WO PCT/EP2002/002907 patent/WO2002075065A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO02075065A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002075065A1 (en) | 2002-09-26 |
ES2252429T3 (en) | 2006-05-16 |
DE10112842A1 (en) | 2003-02-20 |
DE50204864D1 (en) | 2005-12-15 |
EP1368543B1 (en) | 2005-11-09 |
DE10112842B4 (en) | 2004-05-27 |
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