EP2743414A1 - Dispositif d'écoulement pour liquides - Google Patents

Dispositif d'écoulement pour liquides Download PDF

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Publication number
EP2743414A1
EP2743414A1 EP12196707.9A EP12196707A EP2743414A1 EP 2743414 A1 EP2743414 A1 EP 2743414A1 EP 12196707 A EP12196707 A EP 12196707A EP 2743414 A1 EP2743414 A1 EP 2743414A1
Authority
EP
European Patent Office
Prior art keywords
liquid
closing element
drainage device
drainage
drain
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Withdrawn
Application number
EP12196707.9A
Other languages
German (de)
English (en)
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 EP12196707.9A priority Critical patent/EP2743414A1/fr
Publication of EP2743414A1 publication Critical patent/EP2743414A1/fr
Withdrawn legal-status Critical Current

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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
    • E03F5/042—Arrangements of means against overflow of water, backing-up from the drain

Definitions

  • the present invention relates to a drain device for liquids according to the preamble of independent claim 1.
  • the basic structure of such a drain device is for example from the document EP 1 567 373 A2 known, in which case the movable closing element is designed in the form of a pivotable so-called Klenk flap.
  • This flap has a catchment space on the liquid inlet side and is held by the lever principle by means of a balance weight in the closed position until the weight of the amount of liquids in the collecting space exceeds the counterweight and thus swings the flap to allow a liquid drain.
  • the flap and the associated counterweight with the corresponding pivot axis are arranged substantially in a horizontal plane, so that functional problems due to contamination can occur, in particular after a prolonged period of operation.
  • a water-closure in which an odor-trap function is achieved by the so-called sipe principle in which an inlet nozzle dips into a sliding cup and thus separates an inlet region of the cup from a drainage region of the cup.
  • This cup is movably supported by a spring, such that the effective height of the overflow of the cup is variable depending on the weight of the liquid supplied. The flow rate through such a closure is thus controllable in dependence on the inflow rate.
  • the spring and holding guide of the cup is disposed within the same, so that here, in particular after prolonged operation functional problems may occur due to contamination.
  • a drainage device for liquids comprising a base body having at least one liquid inlet and at least one liquid outlet, wherein a movable closing element between the liquid inlet and the liquid outlet is arranged and the closing element in a first position, a region of the liquid inlet with respect to a region of the liquid outlet seals and the closing element from the first position in a first direction is movable into at least one further position, which allows a drainage of liquid from the region of the liquid inlet to the region of the liquid outlet, characterized in that the movable closing element has a buoyancy section for generating a Buoyancy force on the closing element in a second direction, which counteracts the first direction.
  • This drainage device allows reliable operation in different applications and at relatively low height.
  • a preferred draining device is characterized in that the region of the liquid inlet forms a liquid receiving chamber which is open in the second direction and closed in the first direction by the closing element in the first position, the closing element having at least one pressure receiving surface facing the liquid receiving chamber the second direction faces and is pressurizable by liquid in the liquid receiving chamber in the first direction, and the region of the liquid drain forms a liquid drain chamber which is closed in the second direction by the closing element in the first position.
  • a preferred development of the drainage device is characterized by a liquid drainage member delimiting the liquid drainage chamber and a liquid inlet member forming, together with the pressure receiving surface of the closure member, the liquid receiving chamber, the liquid inlet member and the closure member having the buoyancy portion being inserted in the liquid drainage member.
  • a preferred drainage device is characterized in that the buoyancy section of the closing element is cup-shaped open in the first direction. This allows easy production of the components.
  • a preferred draining device is characterized by a holding device for holding the movable closing element, wherein the holding device applies a predetermined holding force to the movable closing element in the second direction. This allows a reliable function in an adaptation to various applications.
  • a preferred embodiment of the drainage device is characterized in that the closing element has a shank portion which extends in the first direction and is mounted in the holding guide. This allows easy production of the components.
  • a preferred drainage device is characterized in that the holding device has a spring element, wherein the holding force is applied by the spring element to the closing element. Thereby, the holding force can be set easily and reliably.
  • a preferred draining device is characterized in that the holding device is spaced in the second direction from the pressure receiving surface of the closing element, wherein the liquid receiving chamber between the pressure receiving surface of the closing element and the holding device is provided. As a result, excessive contamination of the holding device can be avoided.
  • a preferred drainage device is characterized in that the closure element is rotationally symmetrical with respect to an axis, the axis extending along the first and second directions. This allows easy production of the components.
  • a preferred development of the drainage device is characterized in that the liquid receiving chamber and the liquid drainage chamber are rotationally symmetrical with respect to the axis. This allows easy production of the components.
  • a preferred development of the drainage device is characterized in that the pressure receiving surface is conical. This causes some centering of the compressive force components and improves the function.
  • a preferred development of the drainage device is characterized in that the buoyancy section of the closing element has a conical section with adjoining cylinder section. This allows a simple dimensioning of the components.
  • a preferred use of the drainage device is a drainage drainage device for a light shaft or sanitary drainage device for a shower or tub drain with such a drainage device, wherein the movable closing element is provided as an odor and / or non-return closure element.
  • the preferred embodiment shows a draining device for liquids, wherein the device shown is provided as a water drain for a light well or the like.
  • the illustrated drain device is provided for a predetermined installation position such that a first direction A relates to the direction of gravity (downward direction), and accordingly a second direction B refers to the direction opposite to gravity (upward direction).
  • a first direction A relates to the direction of gravity (downward direction)
  • a second direction B refers to the direction opposite to gravity (upward direction).
  • the axis A-B extends in vertical, i. in the direction of gravity.
  • the embodiment shown as a drainage device for a light shaft or the like, has a liquid inlet 2, over which water, in particular rainwater tapers.
  • the drainage device furthermore has a liquid outlet 3, via which the water, in particular the rainwater, is discharged via a further drainage system, for example to a sewer connection or a so-called seepage bottom.
  • the embodiment shown has a single fluid inlet 2 in connection with a single fluid outlet 3.
  • two or more fluid ports are provided.
  • Such liquid inlets are formed, for example, as inflow channels or the like.
  • two or more liquid drains are provided.
  • the illustrated embodiment further proposes a liquid drain that opens substantially in the first direction A (down), so that the drain device is placed on a vertical pipe or a vertical pipe end flange.
  • a single or multiple liquid drains are formed by substantially horizontal (substantially perpendicular to the direction A) arranged pipe connections.
  • a single or a plurality of such horizontal terminals extend radially to the vertical main axis A-B in the installed arrangement of the downcomer.
  • a flow gradient of more than 3% must be taken into account.
  • a leaf catcher basket 8 is arranged above the liquid inlet 2. This leaf catcher 8 is provided to reduce the dirt load of the drainage device.
  • the drainage device next to said leaf catcher basket 8, a liquid drainage element 5, which is held by means of a retaining ring 9 and a lip seal 10 tightly on a connection pipe.
  • the liquid drainage element 5 is part of the main body, and takes up substantially the remaining parts of the main body 1 except the leaf catcher basket 8, as shown in the sectional view according to the FIG. 1b is shown.
  • the liquid drainage element 5 is designed to be rotationally symmetrical with respect to the vertical main axis AB and limits a liquid drainage chamber 3b radially outward to the attachment shown on a vertical pipe section.
  • the liquid inlet element 6 is arranged in the liquid drain element 5.
  • This liquid inlet element 6 is substantially tubular and arranged concentrically with respect to the axis AB.
  • the liquid inlet element 6 is connected by means of a tubular Anschraubflansches 11 to the liquid drain element 5 as in FIG. 1b shown stored.
  • a movable closing element 4 is arranged concentrically to the liquid drainage element 5 and the liquid inlet element 6.
  • This movable closing element 4 is rotationally symmetrical with respect to the axis A-B and has a shank portion 4c extending along the axis A-B.
  • the closing element 4 has a conical section 4d with a subsequent cylinder section 4e.
  • the conical portion 4d and the cylinder portion 4e form a pot which is open in the first direction A (downwards in the installed state of the downcomer).
  • the conical section 4d with adjoining cylinder section 4e surround an air space, so that there is a buoyancy section which generates a buoyant force as soon as a liquid, such as water, is in the liquid drainage chamber 3d.
  • the shaft portion 4c of the shutter member 4 extends in the second direction B (upwards in the installed state of the downcomer) to a holding device 7, wherein an end portion of the shaft portion 4c is supported in a holding guide 7a.
  • the end portion of the shaft portion 4c is cylindrical and is supported in a cylindrical support guide (7a).
  • the end portion of the shaft portion 4c surrounded by a coil spring 7b, which is disposed between an upper retaining ring and a lower abutment surface and the closing element 4 holds in a first position, or the closing element 4 along the axis AB in the direction of presses first position in which the drain device is closed, as will be explained in detail below.
  • a bias of the coil spring 7b takes place.
  • such a spring element is designed as an elastic tension spring rod, disc spring or gas pressure spring.
  • the coil spring 7b shown serves as a spring element to apply a holding force on the closing element 4 in the second direction B.
  • the closing element 4 is movable along the axis AB from the first position against the spring force of the spring element, and thus can assume at least one further position in which the discharge device is open, as will be explained in detail below.
  • the shank portion 4c extends from the tip of the cone portion 4d.
  • the conical section 4d extends radially outwards and in the first direction A, starting from the axis AB.
  • a cylinder section 4e directly adjoins the radially outer end region of the conical section 4d.
  • This cylinder portion 4e extends from the radial edge portion of the cone portion 4d in the first direction A.
  • This cylinder portion 4e is formed concentric with the axis AB so that the respective side surfaces extend parallel to the axis AB, as shown in FIG FIG. 1b is shown.
  • the cylinder portion 4e has in direction A an end surface which lies in a plane perpendicular to the axis AB.
  • the movable closing element 4b is formed with its respective sections as a one-piece injection-molded component.
  • the movable closing element is designed in several parts, wherein, for example, the buoyancy section is formed by a rotationally symmetrical pot element and the shaft section is screwed in a corresponding position on a bottom of the pot.
  • the respective parts may be made of a metallic material, for example by deep drawing and turning. A corresponding metallic material is advantageous, for example, when used for chemically aggressive liquids.
  • This sealing region has a circumferential sealing ring 12.
  • the liquid inlet element 6 is substantially tubular and is positioned concentrically with the axis AB.
  • An end portion of the liquid inlet member 6 in the first direction A is provided with a sealing flange which cooperates with the circumferential seal 12 of the closure member 4 and forms a seal for liquids when the closure member 4 is in the first position, that is, by the holding force the spring 7b, which is pressed in the second direction B.
  • a circumferential support portion is provided on the closing element 4, so that a sealing region of the circumferential seal 12 between the support portion of the closing element 4 and the end portion of the liquid inlet element 6 is arranged.
  • the inlet element 6 is mounted within the tubular Anschraubflansches 11 and has at the end portion in the second direction B to an inlet funnel. This end portion is sealed against a bearing surface of Anschraubflansches 11 by means of an O-ring.
  • the tubular Anschraubflansch 11 is in turn mounted in the liquid drain element 5 and sealed by a seal 13 and an O-ring 15, as shown in FIG. 1b is shown.
  • the liquid drain element 5 extends from the liquid inlet 2 to the liquid outlet 3, so that said functional elements are radially enclosed by the liquid drain element 5 and received therein.
  • the liquid drain element 5 is likewise designed or arranged rotationally symmetrical and concentric with the axis AB.
  • the radially inner side surface of the liquid inlet member 6 and the pressure receiving surface 4b of the closure member 4 substantially form a liquid accommodating chamber 2a.
  • This liquid accommodating chamber 2a is open in the second direction B (in the installed state upward) and is sealed by the packing 12 between the closing member 4 and the end portion of the liquid inlet member 6 in the first direction A (downwardly in the installed state).
  • the holding portion 7 is arranged coaxially with the axis AB and spaced from the tip of the cone portion 4d, so that a substantial part of the liquid receiving chamber 2a between the pressure receiving surface 4b of the cone portion 4d and an end portion with respect to the first direction A (a lower end portion in the installed state) of the holding device 7 is arranged.
  • the drain device thus the holding portion 7 is disposed at least under normal operating conditions outside the liquid inlet chamber 2a.
  • the holding device 7 is held in the liquid inlet element 6 via webs.
  • three webs are provided, which extend further from an end section of the liquid inlet element 6 lying in the second direction B in this direction and thus position the holding device above (with respect to an installed state) the inlet edge 16 of the liquid inlet element 6.
  • the drainage device When using the drainage device as a drain for a light shaft according to the embodiment shown, this is used at a corresponding low-lying point of the light shaft, wherein the liquid inlet 2 merges substantially into a bottom surface of the light shaft and leaf catcher basket 8 protrudes beyond this level. Liquid, that is rainwater in the said use, thus flows on the bottom surface of the light shaft to the drain device and into the liquid inlet 2 into it, wherein coarse contaminants are retained by the leaf catcher basket 8.
  • the drainage device in an alternative use or design of the drainage device in the sanitary area, in particular for a shower or bath drain, the drainage device is inserted substantially flush at the lowest point of the tub or the shower area. In this case, it is not assumed that coarse contamination of the water, so that can be dispensed with the use of Laubkorbes.
  • a further closure device is provided, which in principle prevents drainage of water in the closed state.
  • a liquid for example rainwater
  • the liquid collects even at small amounts directly above of the sealing section.
  • This liquid level in this case supports the odor trap function of the drainage device and forms a corresponding annular seal, as with the liquid level 20a in the FIG. 1b is shown.
  • the liquid level in the liquid receiving chamber 2a increases until a predetermined liquid level is reached in the liquid receiving chamber 2a, which in the FIG. 1b represented by the reference numeral 20b.
  • the weight of the intended liquid eg water
  • the weight of the liquid in the liquid receiving chamber 2a acts in the first direction A and thus against the spring force acting in the second direction B.
  • the movable closing member 4 is moved in the first direction A and opens the area on the seal 12 between the sliding closure member 4 and the liquid inlet member 6, so that liquid can drain into the liquid drain chamber 3b.
  • the liquid in the liquid drain chamber 3b then flows via the liquid outlet 3 into the channel connection or the like provided for this purpose.
  • a closure of the drain device takes place with a liquid or water level as indicated by the reference numeral 20b in the FIG. 1b is shown.
  • This amount of liquid thus remains in the liquid receiving chamber 2a. If no further liquid is supplied and the liquid evaporates, the said liquid level drops, whereby an annular liquid level forms directly above the sealing area even with a small amount of liquid, as indicated by reference numeral 20a in FIG FIG. 1b is pictured.
  • the remaining liquid thus concentrates advantageously on the region of the seal and acts as or supports the odor trap.
  • the additional buoyancy force causes a larger weight force by the liquid in the liquid receiving chamber 2a to be necessary to achieve an opening cross section.
  • the opening cross section is thus reduced, the inflow of liquid into the liquid discharge chamber 3b is reduced and the liquid level in the liquid receiving chamber 2a is increased.
  • a correspondingly increased liquid level is indicated by reference numeral 20c in FIG FIG. 1b shown.
  • the volumes of the liquid receiving chamber 2a of the liquid drain chamber 3b and the buoyant section 4a and spring force are matched so that the liquid level 20c reaches the lower end portion of the holder as long as the liquid level 30a in the drain chamber 3b is still below the seal area between the closing element 4 and the liquid inlet 6 and thus a liquid flow takes place.
  • both in normal operation that is, a medium supply amount of liquid, as well as in a boundary operation, that is, a higher supply of liquid prevents the holding device is immersed in the liquid in the liquid receiving chamber 2 a and dirty in particular during prolonged use and in their function is restricted. This advantageous function is also maintained when a backlog occurs due to contamination or partial closure in the liquid drainage area.
  • the associated buoyancy of the buoyancy section 4a is designed such that the closing element 4 is held in the first position also if the entire inlet area 2 is filled with liquid. In this state, drainage of liquid is no longer possible. An overflow of non-return liquid from the liquid drain chamber 3b in the liquid receiving chamber 2a is prevented, so that a check valve function is ensured.
  • the embodiment shown advantageously combines the odor trap function and the non-return closure function by means of the displaceable closing element, wherein the special configuration, in particular the arrangement of the holding device 7, at least reduces functional impairment due to contamination, in particular over a longer period of operation.
  • the buoyancy section 4a assists the closure of the drain device as soon as there is a liquid level in the liquid drain chamber 3b.
  • This effect is particularly effective in the case of a strongly fluctuating fluid supply at the fluid inlet 2, in particular when the fluid discharge at the fluid outlet 3 is less than the said intake.
  • the drainage device shown can be designed such that the flow of liquid is limited to a maximum value via the liquid outlet 3 and yet a backflow of liquid, which is already in the liquid drain chamber 3b is prevented.
  • the buoyancy section 4a is essentially formed by the cone section 4d with the adjoining cylinder section 4e, the cylinder section being open in the intended liquid drainage direction (direction A).
  • the buoyancy section 4a thus forms an air bell which can dip into the liquid.
  • the buoyancy function is ensured and, moreover, accumulation of liquid within the bell-shaped buoyancy section is prevented.
  • no liquid remains within the buoyancy section as soon as the liquid level in the liquid drainage chamber 3b drops.
  • a malfunction by liquid in the enclosed space, which would pull the movable shutter from the closed position is surely prevented.
  • the simple configuration of the buoyancy section through the cylinder section 4e allows the beginning of an additional buoyancy force and the size of the buoyancy force as a function of the liquid level due to the axial length (with respect to the axis AB) of the cylinder section 4c set in the liquid drain chamber 3b. In this case, a determination can already be made during the production of the closing element 4.
  • the cylinder portion is formed with a so-called excess length, wherein during assembly, the length of the cylinder portion is shortened according to the respective boundary conditions or requirements.
  • a drainage device for liquids is shown, in particular for a light shaft, this being intended for an attachment to a pipe section in the range of 90 to 150 mm.
  • a height in the direction of the axis A-B is provided from 60 to 100 mm, with a leaf trap basket in the range of 30 to 80 mm height is proposed.
  • a spiral spring is proposed, which has a maximum compression length of 10 to 20 mm, in particular 15 mm, while a maximum force of 4 to 5 N, in particular 4.5 N applies. When installed, this spring is slightly biased. With a bias of 2 mm carried out thus results in a closing force of 0.6 N.
  • the buoyancy section preferably produces a buoyancy of 0.5 N and thus causes a substantial doubling of the closing force.
  • the liquid drain element 5 When mounting the drainage device in a light well, the liquid drain element 5 is first used. Subsequently, the inlet element 6 is inserted into the Anschraubflansch 11, wherein the elements are sealed against each other by the O-ring 14. The inlet element 6 already supports the displaceable closing element 4. The assembly thus formed is screwed into the liquid drain element 5 and sealed by means of the seals 13 and 15. The leaf trap 8 is fastened by means of a bayonet lock on the Anschraubflansch 11. For revision or for cleaning the drainage device the leaf trap is removed and the liquid inlet element 6 can be pulled out together with the closing element 4 (in the direction B).
  • the illustrated embodiment or the described alternatives describe a drainage device for liquids with a base body 1, which has at least one liquid inlet 2 and at least one liquid outlet 3.
  • a movable closing element 4 is arranged between the liquid inlet 2 and the liquid outlet 3.
  • the closing element 4 seals in a first position a region of the liquid inlet 2 with respect to a region of the liquid outlet 3.
  • the closing element 4 is movable from the first position in a first direction A into at least one further position, which allows a drainage of liquid from the region of the liquid inlet 2 to the region of the liquid outlet 3.
  • the movable closing element 4 has a buoyancy section 4 a for generating a Buoyancy force on the closing element 4 in a second direction B, which counteracts the first direction A.
  • the second direction B is opposite to the first direction A.
  • the region of the liquid inlet 2 forms a liquid receiving chamber 2a, which is open in the second direction B and is closed in the first direction A by the closing element 4 in the first position.
  • the closing element 4 has at least one pressure receiving surface 4b, which faces the liquid receiving chamber 2a in the second direction B and can be pressurized by liquid in the liquid receiving chamber 2a in the first direction A.
  • the region of the liquid drain 3 forms a liquid drain chamber 3b, which is closed in the second direction B by the closing element 4 in the first position.
  • the liquid drainage chamber 3b encloses at least the buoyancy section 4a of the closing element 4.
  • a liquid drain member 5 defines the liquid drain chamber 3b.
  • a liquid inlet member 6 forms, together with the pressure receiving surface 4b of the closing member 4, the liquid receiving chamber 2a.
  • the liquid inlet element 6 and the closing element 4 with the buoyancy section 4 a are inserted in the liquid drain element 5.
  • the buoyancy section 4 a of the closing element 4 is cup-shaped open in the first direction A formed.
  • a holding device 7 is provided for holding the movable closing element 4.
  • the holding device 7 applies a predetermined holding force to the movable closing element 4 in the second direction B.
  • the closing element 4 has a shank portion 4c which extends in the first direction A and is mounted in the holding guide 7a.
  • the holding device 7 has a spring element 7b.
  • the holding force is applied to the closing element 4 by the spring element 7b.
  • the holding device 7 is spaced in the second direction B from the pressure receiving surface 4 b of the closing element 4.
  • the liquid accommodating chamber 2 a is provided between the pressure receiving surface 4 b of the closing member 4 and the holding device 7.
  • the closing element 4 is rotationally symmetrical with respect to an axis A-B.
  • the axis A-B extends along the first and second directions B.
  • the liquid receiving chamber 2a and the liquid discharge chamber 3b are formed rotationally symmetrical with respect to the axis A-B.
  • the buoyancy section 4a of the closing element 4 has a conical section 4d with adjoining cylinder section 4e.
  • drain device in particular drainage-drainage device for a light shaft or sanitary drain device for a shower or tub outlet, explained with a drain device, wherein the movable closing element 4 is provided as an odor and / or check valve element.

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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)
  • Sink And Installation For Waste Water (AREA)
EP12196707.9A 2012-12-12 2012-12-12 Dispositif d'écoulement pour liquides Withdrawn EP2743414A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12196707.9A EP2743414A1 (fr) 2012-12-12 2012-12-12 Dispositif d'écoulement pour liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12196707.9A EP2743414A1 (fr) 2012-12-12 2012-12-12 Dispositif d'écoulement pour liquides

Publications (1)

Publication Number Publication Date
EP2743414A1 true EP2743414A1 (fr) 2014-06-18

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EP12196707.9A Withdrawn EP2743414A1 (fr) 2012-12-12 2012-12-12 Dispositif d'écoulement pour liquides

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018101909U1 (de) 2018-04-09 2019-07-10 Kessel Ag Ablaufvorrichtung für Flüssigkeiten mit Geruchsverschluss und Rückstausperre
CN112922127A (zh) * 2021-03-29 2021-06-08 惠州市金雄城建筑科技有限公司 基于bim的防汛装置及城市暴雨应急预警控制防汛系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137516A (en) * 1914-10-19 1915-04-27 George W Moon Sewer-trap.
DE69124729T2 (de) 1990-11-19 1997-08-14 Sjoebo Bruk Ab Wasser-Verschluss
EP1567373A1 (fr) 2002-12-02 2005-08-31 DaimlerChrysler AG Procede de regulation de la climatisation
US20070215212A1 (en) * 2006-03-15 2007-09-20 Demeniuk Michael A Floor drain with incorporated flood prevention

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137516A (en) * 1914-10-19 1915-04-27 George W Moon Sewer-trap.
DE69124729T2 (de) 1990-11-19 1997-08-14 Sjoebo Bruk Ab Wasser-Verschluss
EP1567373A1 (fr) 2002-12-02 2005-08-31 DaimlerChrysler AG Procede de regulation de la climatisation
US20070215212A1 (en) * 2006-03-15 2007-09-20 Demeniuk Michael A Floor drain with incorporated flood prevention

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018101909U1 (de) 2018-04-09 2019-07-10 Kessel Ag Ablaufvorrichtung für Flüssigkeiten mit Geruchsverschluss und Rückstausperre
EP3553238A1 (fr) * 2018-04-09 2019-10-16 Kessel AG Dispositif d'écoulement pour liquides pourvu de clapet anti-retour fonctionnant comme coupe-air
CN112922127A (zh) * 2021-03-29 2021-06-08 惠州市金雄城建筑科技有限公司 基于bim的防汛装置及城市暴雨应急预警控制防汛系统

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