WO2006005244A1 - A water-flushing backflow prevention drain device - Google Patents
A water-flushing backflow prevention drain device Download PDFInfo
- Publication number
- WO2006005244A1 WO2006005244A1 PCT/CN2005/000915 CN2005000915W WO2006005244A1 WO 2006005244 A1 WO2006005244 A1 WO 2006005244A1 CN 2005000915 W CN2005000915 W CN 2005000915W WO 2006005244 A1 WO2006005244 A1 WO 2006005244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- water
- port
- permanent magnet
- drainage device
- 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.)
- Ceased
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
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0405—Gullies for use in roads or pavements with an odour seal
- E03F5/0406—Gullies for use in roads or pavements with an odour seal the odour seal being easily accessible for cleaning
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/28—Odour seals
- E03C1/282—Odour seals combined with additional object-catching devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/28—Odour seals
- E03C1/298—Odour seals consisting only of non-return valve
-
- 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
-
- 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
- E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
- E03F2005/0417—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a valve
Definitions
- the invention relates to a water-tight impact anti-reverse drainage device without water seal, in particular to an upright insertion drainage pipe which is convenient for construction, installation, disassembly and cleaning, and has a permanent magnet for preventing odor, insect, fire, anti-virus and anti-overflow. Reverse drainage. Background technique
- Patent No. 01235804. 5 - Magnetic check valve, patent number: 86104109A - Permanent magnet type check valve, etc. Its permanent magnet is a circular ring body on the valve port or valve plate, which occupies a large space and costs. high.
- Patent No.: 95231251. 4 A kind of magnetic sealing valve such as anti-ground leakage. The force applied to the valve plate is outside the sealing port, so that the pressure around the sealing port is unevenly distributed and easy to leak.
- Taiwan Patent Announcement No.: 203308 Magnetic automatic opening and closing water trap
- the valve plate is closed by the repulsive force of the permanent magnet.
- the valve plate increases the repulsive force as the opening increases, which limits the flow force.
- the new type of pipe system automatically replenishes the gas (recovers the pipe at normal pressure), and then automatically restores the anti-reverse blockage in time, completely avoiding the traditional buckle-type floor drain and the return bend.
- the water seal is sucked dry, causing odorless failure. Even if it is completely water-free, the device can be normally blocked, and no artificial water supply is needed.
- the device can still reliably stop the reverse, and does not overflow, insect, odor, fire. , explosion-proof, anti-air pollution spread.
- the new device can be used for construction, installation and transformation, which is convenient for waterproofing and convenient for grounding with different thickness.
- the structure is simple, there are few moving parts, no precision parts, and no wearing parts other than elastic sealing materials.
- the water impact anti-reverse drainage device of the invention comprises: a fixed shell, a water raft on the fixed shell, and a three-part permanent magnet check valve body which is conveniently loaded and unloaded at the center of the fixed shell.
- the water-impacting anti-reverse drainage device is upright, and the long cylindrical valve cylinder 6 of the long cylindrical valve body 3 is fixed to the fixed casing 1 and inserted upright into the drainage pipe 4, the total height of which is larger than that of the long cylindrical hollow tube 6
- the maximum diameter of the port 5 of the lower end is 1.5 times or more;
- the shaft 14 is fixed at the horizontal central axis position of the lower end of the valve barrel 6;
- one side of the semicircular valve plate 8 is hinged on the shaft 14 and covers the wide opening 5
- the permanent magnet block 10 at the center of the elastic sealing port 11 on the valve plate 8 and the soft magnetic material bolt 9 fixed to the column body 7 in the valve port 5 at the lower end of the valve barrel 6 are in the closed state of the valve plate 8 Corresponding to each other and attracting each other; the protruding height of the bolt 9 is adjustable, or the displacement of the permanent magnet block 10 with the bolt 9 and the pillar body 7 is adopted.
- the total height of the water shock reverse drainage device is greater than three times the maximum diameter of the valve port 5 at the lower end of the long cylindrical valve cylinder 6 of the long cylindrical valve body 3.
- the valve body 3 is inserted and locked to the fixed casing 1 by a short thread or a sloping boss 12. 5 ⁇
- the outer diameter of the fixed portion of the outer diameter of the fixed portion of the outer diameter of the drainage pipe 4 is a clearance fit with the inner diameter of the standard size of the drainage pipe 4; the length is not less than 2. 5 cm.
- the valve cartridge 6 is inserted into the drain duct 4 through the fixed casing 1.
- the upper part of the fixed casing 1 has an enlarged inner cavity to accommodate more water.
- the plane of the valve port 5 on the hemispherical side of the lower end of the long cylindrical valve cylinder 6 with a single valve plate 8 is at an angle of less than 40 degrees to the plane perpendicular to the axis of the shaft 14; the slope 15 and the valve of the shaft 14 are fixed
- the upwardly inclined and smooth connection between the cylinders 6 reduces the flow resistance; the lower end of the inner wall of the valve cylinder 6 and the other side corresponding to the slope plate 15 are fixed with a streamlined baffle 16 which is directly above the pillar body 7
- the pillar body 7 and the soft magnetic bolt 9 do not affect the closing of the valve plate 8, so as not to carry the fiber debris in the sewage; a gap is left between the deflector 16 and the lower end of the slope plate 15.
- the upper end is a tapered tubular bayonet 21, the upper port is large, and the outer sleeve has a tight tapered rubber
- the sleeve 23, the upper portion of the tapered tubular bayonet 21 is a large-diameter torque port 22 whose outer edge is non-slip; the outer wall of the valve cylinder 6 has four > valve cylinder ribs 25 and the inner diameter of the drain duct 4 is a clearance fit.
- the bottom of the valve barrel 6 has a horizontal cross composed of a horizontal support 24 and a pillar body 7 A, 7 B.
- the horizontal support 24 has a lower horizontal shaft 14 and is hinged with two semicircular valve plates 8A, 8B and fixed with two valve plates.
- Two auxiliary return springs 27A, 27B; the permanent magnet blocks 10A, 10B at the center of the two valve plates are positioned to position the soft magnetic bolts 9 A, 9B on the column bodies 7A, 7B, respectively, when the two valve plates 8A, 8B are in the closed state Corresponding separately.
- the lower horizontal shaft 14 of the horizontal support 24 at the bottom of the bottom of the valve barrel 6 is hinged with two semicircular valve plates 8A, 8B, and the permanent magnet block 10A is fixed at the center positions of the two valve plates respectively.
- the two permanent magnets respectively correspond to the positions of the two soft magnetic bolts 9A, 9B on the two inclined lower pillar bodies 7A, 7B on both sides of the lower end of the valve cylinder 6.
- the lower end of the horizontal support 24 is a two-slab 8A, 8B reset bracket 28, and the lower end of the bracket is provided with a permanent magnet block 10C, and the two pole faces of the permanent magnet block 10C respectively correspond to the positions of the permanent magnet blocks 10A, 10B of the two valve plates 8A, 8B respectively.
- the magnetic poles are respectively repelled and installed;
- the two valve ports 5A, 5B symmetrically distributed at the lower central axis of the valve barrel 6 have the same plane and the horizontal plane axis 14 are perpendicular to the vertical plane, and are less than 60 degrees;
- 6 above the lower end of the inner wall of the two pillar bodies 7A, 7B, respectively, corresponding to the streamlined baffles 16A, 16B, covering the pillar bodies 7A, 7B and the upper soft magnetic bolts 9A, 9B, does not affect the valve plates 8A, 8B Closed;
- the lower end of the outer wall of the valve barrel 6 has a circumferentially distributed anti-biasing fulcrum 29, and its outer height is matched with the inner diameter of the drainage pipe 4 to ensure concentricity with the drainage pipe 4 during installation.
- valve body 3 and the fixed casing matched with the water body 2 are installed in the ground drain.
- the valve body 3 and the fixed casing matched thereto are provided, and the water tweezers 2 are mounted on the drain port at the bottom of the container.
- the valve body 3 is separately mounted on the bottom drain of the container.
- the water impact reverse drainage device of the present invention avoids the deficiencies of the conventional buckle bowl and the water return water seal principle drainage device and the prior art described above in the prior art, and can completely achieve the purpose of creation in the foregoing specification. , and the structure is simple, practical, reliable and convenient.
- Fig. 1 is a schematic view showing the structure of a single valve plate water impingement backstop in accordance with the present invention.
- Fig. 2 is a schematic view showing the modification of the embodiment of the present invention 2 - double valve plate spring for the use of the buckle bowl type floor drain.
- Fig. 3 is a partial schematic view showing the leakage of the permanent magnet repulsive force resetting of the double valve plate in the embodiment of the present invention.
- the floor drain is described in detail below with reference to FIG. 1 to FIG. 4;
- FIG. 1 is a schematic view showing the structure of a water-impacting anti-reverse drain of a single valve plate according to an embodiment of the water-impacting anti-drainage device of the present invention.
- the floor drain comprises a fixed shell fixed on the ground surface layer, a water raft on the fixed shell, an oblong tubular permanent magnet check valve body 3 conveniently mounted on the fixed shell, and three parts.
- the basic working principle of the floor drain is a long cylindrical permanent magnet suction closed check valve that hinges the vertical posture of the single valve plate 8 into the drain pipe 4.
- the valve plate 8 is not opened to avoid the phenomenon that the sediment and debris deposition caused by the small water flow block the horizontal drain pipe;
- the water inlet exceeds the set valve plate 8 to touch the water level, the water pressure exceeds the magnet and the valve in the valve body 3
- the permanent magnet attraction of the plate 8 immediately touches the valve plate 8, and all of them are opened, and the water is quickly drained to generate water impact, which is beneficial to clean the drainage pipe;
- the valve plate 8 is not closed, and the flow rate is maximized;
- a negative pressure suddenly occurs in the pipeline 4 the pipeline is automatically ventilated, and the normal pressure inside the pipe is automatically maintained; then the anti-reverse plugging is resumed in time, completely avoiding the occurrence of the buckle-type floor drain and the water seal in the return bend being sucked dry.
- the floor drain has a total height greater than the maximum dimension of the valve port 5 of the oblate valve body 3 of the oblong tubular shape of 1. 5 times or more, has accommodated sufficient water pressure to open the valve plate, preferably to make the floor drain
- the maximum size of the diameter of the valve port 5 of the check valve body 3 whose height is larger than the oblong tubular shape is more than three times.
- the fixed casing 1 has an enlarged inner cavity to accommodate a larger amount of water for a greater amount of water impact.
- the valve body 3 is inserted upright into the drain pipe 4, and is coaxial, which occupies a small space on the ground, which is very convenient for construction and waterproofing.
- the oblong tubular valve body 3 is fixed or detached from the fixed casing 1 by a short thread or a sloping boss 12 for easy overall cleaning and overhaul.
- the pressure seal is achieved by the sealing jaws 13. 5 ⁇
- the outer diameter of the lower portion of the fixed casing 1 is inserted into the drainage pipe 4 and the outer diameter of the drainage pipe 4 is a clearance fit; the length is not less than 2. 5 cm;
- the outer diameter of the outer diameter is the nominal size of the drainage pipe 4, the lower end of the fixed casing 1 should be inserted outside the drainage pipe, the length of the insertion depth is not less than 2. 5 cm, to adapt to the different thickness of the floor and the cushion, adjust its height Convenience.
- a sealing paste 18 is applied between the construction installation and the drain pipe 4.
- valve plate 8 of the size just covering the valve port 5 is freely suspended on the shaft 14 by a side hinge, and the shaft 14 is fixed on the horizontal central axis of the lower end of the valve cylinder 6 of the long cylindrical valve body 3, and the wide plate can swing freely.
- the shaft 14 is selected on the lower end of the valve barrel 6 and the horizontal central axis to reduce the flow resistance in order to obtain a large amount of water impact and the maximum opening of the valve plate 8.
- a central portion of the sealing opening 11 of the valve plate 8 is fixed with a block 7 of 10 ⁇ m, and the soft magnetic bolt 9 fixed to the valve body 5 of the valve port 5 in the valve barrel 6 is closed when the valve plate 8 is closed. And attracting each other to achieve the sealing of the valve port 5 and the valve plate 8 is fully opened at a moment when the water level exceeds the set opening height.
- the permanent magnet block 10 is selected at the center of the sealing port 11 in order to ensure that the pressure distribution around the circumference is as uniform as possible for better sealing and low cost.
- the pressure of the closing of the discharge port of the valve plate 8 is adjusted.
- the purpose of the adjustable suction is to reduce the technical requirements for design, materials and installation. It is only necessary to adjust the height of the touch water level on site by means of factory commissioning or installation.
- valve plate 8 is closed and reset. After draining, the valve plate 8 is suspended from the shaft 14 in a natural drooping state, and is closed under the suction of the soft magnetic bolt 9 on the permanent magnet block 10 and the pillar body 7.
- One side of the single valve plate 8 is fixedly fixed to the shaft 14 of the lower end of the slope plate 15 which is inclined inwardly and downwardly on one side of the valve cylinder 6 and approaches the horizontal central axis of the valve cylinder 6, except for the fixed bearing 14. Tilting is to reduce water resistance and diversion.
- the valve port 5 plane of the lower end hemispherical side of the upright long cylindrical valve cylinder 6 is inclined downward from the axis of the shaft 14 on the horizontal center axis of the lower end of the valve cylinder 6, and is inclined downward toward the opposite direction of the valve plate 8, with the shaft 14
- the angle of the vertical line of the axis is less than 40 degrees, and the purpose of the inclination is to reduce the water flow resistance and the diversion.
- the other side corresponding to the lower end slope plate 15 of the upright valve cylinder 6 is fixed with the first-class linear baffle 16, and directly above the pillar body 7, covering the pillar body 7 and its soft magnetic bolt 9 does not affect the valve plate 8 Closing, avoiding the phenomenon of entrainment of the fibrous material; the deflector 16 and the pillar body 7 can be integrated, and the gap between the deflector 16 and the slope 15 is as large as possible, Reduce flow resistance.
- the valve body 3 is directly arranged on the drainage pipe, it is not easy to block, and even when the secondary filter 17 is not installed, even hair, cotton, sand, and the like can be smoothly discharged.
- a barrel-shaped second-stage filter screen 17 which is easy to remove is provided to accommodate foreign matter such as foreign matter in the sewage, and the drainage is more reliable.
- the draining washing machine tube 20 can be stuck on the mouth of the valve body 3 through the bayonet 19, and does not leak water, and does not smell.
- Fig. 2 is a schematic view showing the modification of the 2-double valve plate spring in the embodiment of the present invention for the use of the buckle-type floor drain.
- the fixed casing 1 of the first embodiment is removed, and a tapered tubular bayonet 21 is added to the upper end of the valve cylinder 6.
- the upper port is large, and the outer sleeve is provided with a tight tapered rubber bushing 23, and the upper portion of the tapered tubular bayonet 21 receives the force. Port 22.
- the old floor drain is modified 26
- the original buckle bowl is removed, and then the valve body 3 and the rubber sleeve 23 are inserted into the drain pipe 4, and the torque port 22 is tightened.
- the outer wall of the valve barrel 6 has four circumferentially uniform dimensions and a standard size drainage pipe. 4
- the inner diameter is a short valve rib 25 with a clearance fit to prevent the long cylindrical valve cylinder 6 and the drainage pipe 4 from being eccentric.
- the lower end of the valve barrel 6 of the embodiment is a symmetric two-way open double valve plate 8A, 8B, one side of each valve plate is hinged with the horizontal axis 14 of the lower horizontal center support 24 on the horizontal central axis of the lower end of the valve barrel 6;
- the permanent magnet blocks 10A, 10B fixed in the middle of the sealing opening 11 having the elastic sealing material correspond to each other and attract each other; on the shaft 14, there are auxiliary closing return springs 27A, 27B, and permanent magnet blocks on the valve plates 8A, 8B.
- the 10A, 10B and the attraction forces of the bolts 9A, 9B on the pillar bodies 7A, 7B act to reset and close the two valve plates 8A, 8B.
- FIG. 3 is a partial schematic view showing a three-valve plate permanent magnet repulsive reset ground leakage scheme according to an embodiment of the present invention, two valve ports 5A, 5B plane symmetrically distributed at a lower central axis of the valve barrel 6 and a vertical plane perpendicular to the horizontal axis 14
- the angles are symmetrical, and are less than 60 degrees; the two valve plates 8A, 8B are hinged to the bearing 14 of the horizontal center support 24, and the permanent magnet blocks 10A, 10B and the valve barrel 6 at the central position of the two valve plates 8A, 8B are
- the soft magnetic bolts 9A, 9B on the pillar bodies 7A, 7B correspond to each other.
- baffles 16A, 16B covering the pillar bodies 7A, 7B and the bolts 9A, 9B;
- an auxiliary reset bracket 28 of two valve plates is extended, and a permanent magnet is fixed at the lower end Block 10C, the polarities of the magnetic poles on both sides thereof are respectively opposite to the polarities of the permanent magnet blocks 10A, 10B at the central portions of the corresponding two broad plates 8A, 8B, and the soft magnetic bolts 9A corresponding to the magnetic blocks 10A, 1 OB
- the gravitational force of 9B is sufficient to cause the valve plates 8A, 8B to be delivered to the respective valve ports 5A, 5B.
- the water-impacting anti-drainage valve body 3 of the present invention is also separately applicable to the drain port at the bottom of the container and cancels the water return bend.
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Check Valves (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410049757.6 | 2004-06-28 | ||
| CNB2004100497576A CN1318705C (zh) | 2004-06-28 | 2004-06-28 | 水冲击止逆排水装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006005244A1 true WO2006005244A1 (en) | 2006-01-19 |
Family
ID=34665824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2005/000915 Ceased WO2006005244A1 (en) | 2004-06-28 | 2005-06-24 | A water-flushing backflow prevention drain device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1318705C (zh) |
| WO (1) | WO2006005244A1 (zh) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100844049B1 (ko) | 2006-12-28 | 2008-07-07 | 주식회사 오린 | 악취방지용 배수트랩 |
| AU2008243269B1 (en) * | 2008-11-18 | 2009-04-23 | Larkin & Shoushani Solutions Pty Ltd | Plumbing Fitting |
| USD644717S1 (en) | 2009-04-01 | 2011-09-06 | Larkin & Shoushani Solutions, Pty. | Plumbing fitting |
| CN102304938A (zh) * | 2011-06-14 | 2012-01-04 | 江南大学 | 一种下水强力喉吸方法 |
| DE102011055116A1 (de) * | 2011-11-08 | 2013-05-08 | Aco Severin Ahlmann Gmbh & Co. Kg | Geruchsverschluss |
| US8553891B2 (en) | 2007-02-06 | 2013-10-08 | Koninklijke Philips N.V. | Low complexity parametric stereo decoder |
| CN109339205A (zh) * | 2018-10-17 | 2019-02-15 | 李志明 | 一种地漏壳体及装有该地漏壳体的地漏 |
| CN110241908A (zh) * | 2019-06-13 | 2019-09-17 | 台州尼西卫浴股份有限公司 | 直排单向止回防臭地漏芯 |
| EP3945177A1 (de) * | 2020-07-31 | 2022-02-02 | Dominik Hieber | Wasserablauf-einrichtung |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260686B (zh) * | 2008-04-18 | 2010-06-09 | 天津智川恒博科技发展有限公司 | 膜式密封无残液下水封堵装置 |
| FR3039842B1 (fr) * | 2015-08-07 | 2018-09-07 | Raccords Et Plastiques Nicoll | Dispositif d’evacuation des eaux muni d’un clapet mobile anti-odeur |
| CN105839767A (zh) * | 2015-12-30 | 2016-08-10 | 李正初 | 一种直通式防臭地漏 |
| CN106193214A (zh) * | 2016-08-30 | 2016-12-07 | 山东正程新材料有限公司 | 地排墙排防脱防臭防返水装置 |
| CN107217729B (zh) * | 2017-07-31 | 2023-06-16 | 北京中卫洁源科技发展有限公司 | 一种地漏用单向阀 |
| CN113340040B (zh) * | 2017-08-09 | 2022-12-20 | 重庆海尔制冷电器有限公司 | 一种排水组件 |
| CN109373018A (zh) * | 2018-12-12 | 2019-02-22 | 天津市联合环保工程设计有限公司 | 一种重力式负压气液分离阀及使用方法 |
| CN110386751A (zh) * | 2019-07-10 | 2019-10-29 | 浙江海牛环境科技股份有限公司 | 一种防系统堵塞及防厌氧释磷的污泥处理系统 |
| CN111305327A (zh) * | 2020-03-27 | 2020-06-19 | 江苏美佳马达有限公司 | 一种下水防回流装置 |
| CN113863462A (zh) * | 2021-09-09 | 2021-12-31 | 大连船舶重工集团有限公司 | 一种适用于核电站的带逆止器的排水装置及其设计方法 |
| CN115094990A (zh) * | 2022-07-21 | 2022-09-23 | 沈阳九日实业有限公司 | 一种具有耐正负压水封保护功能的密封装置 |
| CN119825960B (zh) * | 2025-02-11 | 2025-11-21 | 湖南省水利水电科学研究院 | 一种渠道排水减压逆止阀及操作方法 |
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| CA1241634A (en) * | 1984-11-01 | 1988-09-06 | Charles F. Deck | Water-based functional fluids thickened by the interaction of an associative polyether thickener and certain quaternary ammonium salts |
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| US20040025944A1 (en) * | 2002-08-07 | 2004-02-12 | Kane Whitaker | Back flow prevention device for pipelines conveying fluids |
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| CH660610A5 (en) * | 1983-06-22 | 1987-05-15 | Paul Wenger | Odour seal |
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| CN2212026Y (zh) * | 1994-09-18 | 1995-11-08 | 朴长石 | 下水道防臭盖 |
| CN2214462Y (zh) * | 1995-02-20 | 1995-12-06 | 高国斌 | 建筑排水管路逆止阀 |
| CN2536658Y (zh) * | 2002-03-28 | 2003-02-19 | 赵爱明 | 三防地漏 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA1241634A (en) * | 1984-11-01 | 1988-09-06 | Charles F. Deck | Water-based functional fluids thickened by the interaction of an associative polyether thickener and certain quaternary ammonium salts |
| CN2226092Y (zh) * | 1995-05-30 | 1996-05-01 | 高国斌 | 一种止逆地漏 |
| CN2370239Y (zh) * | 1998-12-18 | 2000-03-22 | 王星 | 永磁式排水阀 |
| US20040025944A1 (en) * | 2002-08-07 | 2004-02-12 | Kane Whitaker | Back flow prevention device for pipelines conveying fluids |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100844049B1 (ko) | 2006-12-28 | 2008-07-07 | 주식회사 오린 | 악취방지용 배수트랩 |
| US8553891B2 (en) | 2007-02-06 | 2013-10-08 | Koninklijke Philips N.V. | Low complexity parametric stereo decoder |
| AU2008243269B1 (en) * | 2008-11-18 | 2009-04-23 | Larkin & Shoushani Solutions Pty Ltd | Plumbing Fitting |
| USD644717S1 (en) | 2009-04-01 | 2011-09-06 | Larkin & Shoushani Solutions, Pty. | Plumbing fitting |
| CN102304938A (zh) * | 2011-06-14 | 2012-01-04 | 江南大学 | 一种下水强力喉吸方法 |
| CN102304938B (zh) * | 2011-06-14 | 2013-06-05 | 江南大学 | 一种下水强力喉吸方法 |
| DE102011055116A1 (de) * | 2011-11-08 | 2013-05-08 | Aco Severin Ahlmann Gmbh & Co. Kg | Geruchsverschluss |
| CN109339205A (zh) * | 2018-10-17 | 2019-02-15 | 李志明 | 一种地漏壳体及装有该地漏壳体的地漏 |
| CN110241908A (zh) * | 2019-06-13 | 2019-09-17 | 台州尼西卫浴股份有限公司 | 直排单向止回防臭地漏芯 |
| EP3945177A1 (de) * | 2020-07-31 | 2022-02-02 | Dominik Hieber | Wasserablauf-einrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1318705C (zh) | 2007-05-30 |
| CN1594769A (zh) | 2005-03-16 |
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