CN102535632A - Floor drain - Google Patents
Floor drain Download PDFInfo
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- CN102535632A CN102535632A CN2011104108219A CN201110410821A CN102535632A CN 102535632 A CN102535632 A CN 102535632A CN 2011104108219 A CN2011104108219 A CN 2011104108219A CN 201110410821 A CN201110410821 A CN 201110410821A CN 102535632 A CN102535632 A CN 102535632A
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- floor drain
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Abstract
The invention discloses a floor drain, which aims at solving the defect that an existing floor drain is easy to be blocked after being used for a long time, and comprises an embedded box, a floor drain frame and a filter cover, wherein the floor drain frame is arranged in the embedded box, the filter cover is arranged on the upper end of the floor drain frame, a hollow water seal main body which is broken over upper and lower is sleeved in the floor drain frame, a connecting column is arranged in the water seal main body, the connecting column is connected with a sealing cover through a spring, and the sealing cover and the lower end surface of the water seal main body are born against and the lower end surface of the water seal main body is covered by the sealing cover. The sealing cover downwardly moves under the action of water pressure, sewage starts to be drained, and the sealing cover is pulled up to cover the lower end surface of the water seal main body after the sewage is drained because of elastic action of the spring, thereby having deodorant function. The sealing cover downwardly moves under the action of the water pressure, the sealing cover is not easy to be blocked to move even though sundries exist on the sealing cover, and the floor drain is not easy to be blocked after being used for a long time.
Description
Technical field
The present invention relates to a kind of and the matching used member of sewer, more particularly, it relates to a kind of not susceptible to plugging floor drain.
Background technology
Now on the kitchen of building, washroom, these local ground of balcony all design and installation floor drain is arranged, be used for sewage effluent.Existing floor drain has the function of deodorization mostly; Its structure mainly comprises floor drain body, retaining sieve and drain cover, and the retaining sieve is located at the inside of floor drain body, prevents that big foreign material from dropping in the water pipe of sewer; Drain cover is located at the port of floor drain body, prevents that big foreign material from dropping into floor drain body.The floor drain of this structure has been grown service time, and the foreign material on the retaining sieve can be built up, thereby causes floor drain to stop up.
Chinese patent notification number CN100451252C, on January 14 2009 day for announcing, the name of invention is called floor drain; Its structure mainly comprises floor drain body, retaining sieve and drain cover, and drain cover is arranged on the port of floor drain body, and a port is arranged at the floor drain body bottom; Port is provided with a short tube, and short tube forms water pipe downwards and takes over, and upwards becomes the water sealing (sealing water) pipe of floor drain; The retaining sieve is arranged on the water sealing (sealing water) pipe mouth of pipe; Distance between the horizontal plane at the horizontal plane at floor drain body sealing water pipe port place and drain cover place is greater than 40 millimeters, although the distance between the horizontal plane that the horizontal plane at the floor drain body sealing water pipe port of this structure place and drain cover belong to greater than 40 millimeters, floor drain has been grown service time; On the retaining sieve, still build up foreign material easily, thereby cause floor drain to stop up.
Summary of the invention
The present invention has overcome the deficiency that existing floor drain has been grown easy blocking service time, and a kind of floor drain is provided, and this floor drain uses and also is difficult for for a long time stopping up again.
In order to solve the problems of the technologies described above; The present invention adopts following technical scheme: a kind of floor drain; Comprise embedded box, be installed in floor drain frame in the embedded box, be installed in the filtering cover of floor drain frame upper end, be socketed with the hollow and the water seal main body of conducting up and down in the said floor drain frame, be provided with joint pin in the water seal main body; Joint pin is connected with seal cover through spring, and the lower surface of seal cover and water seal main body offsets and covers the lower surface of water seal main body.Installing hole has been dug in the position of gutter on the ground, and the center of gutter is at the center, position, hole of installing hole, and embedded box is installed in the installing hole, and the floor drain frame is installed in the embedded box, is provided with filtering cover in the upper end of floor drain frame, and filtering cover prevents that foreign material from entering gutter.The water seal main body is socketed in the floor drain frame, water seal main body hollow and conducting up and down, and flow out in sewage vacancy from the water seal main body.The lower surface of seal cover and water seal main body offsets and covers the lower surface of water seal main body; And seal cover connects joint pin through spring; The elastic reaction of spring covers on the lower surface of water seal main body seal cover tightly; Guarantee the sealing of water seal main body, prevent that the foul smell of gutter from emerging in the water seal main body.Behind the hollow position in effluent stream is gone into the water seal main body; Because the pressure effect of water; The upper surface of seal cover just receives downward pressure, and after the pressure of water reached certain value, seal cover just moved down; Seal cover just no longer covers the lower surface of water seal main body, and sewage just flows to gutter in the water seal main body.Sewage is many more, and the pressure that the upper surface of seal cover receives is just big more, and the amount that seal cover moves down is just big more, and effluent discharge must be just fast more.After sewage has been arranged; More residual sewage of meeting in the water seal main body; The insufficient pressure that these sewage produce in the seal cover upper surface to be opening seal cover, and seal cover prevents that foul smell from emerging because the elastic reaction of spring covers on the lower surface of water seal main body again firmly in the water seal main body.Seal cover is that the effect that receives hydraulic pressure moves down, even there are little foreign material on seal cover, also to be difficult for stoping seal cover to move down, so floor drain uses also difficult for a long time the obstruction again.
First kind of scheme: said joint pin hollow and conducting up and down; Be connected with dowel between joint pin and the water seal main body; Be connected with the expansion link that can in joint pin, slide up and down in the joint pin, spring housing is between upper end on the expansion link and joint pin lower end, and spring is in compressive state always; The lower surface of joint pin is stretched out in the lower end of expansion link, and seal cover is connected on the lower surface of expansion link.Spring housing is on expansion link; Seal cover is connected with the lower end of expansion link; Because spring is in compressive state always, so expansion link receives the effect of support force upwards, seal cover is that the lower surface with the water seal main body offsets; The elastic reaction of spring makes on the expansion link and draws, and seal cover just covers on the lower surface of water seal main body firmly.Expansion link is connected in the joint pin and can in joint pin, slides up and down, and prevents when seal cover from vertically moving up and down that in horizontal moving, the position that makes seal cover cover water seal main body lower surface is difficult for changing.
Second kind of scheme: be connected with dowel between said joint pin and the water seal main body; Dowel is provided with through hole near the upper end of water seal main body in the middle of the seal cover, and through hole is passed in the joint pin lower end; Spring housing is connected on the lateral wall of joint pin; The upper end of spring is fixedly connected on the dowel, and the lower end of spring is fixedly connected on the upper end of seal cover, and spring is in extended state always.Said joint pin is divided into epimere post and hypomere post, and hypomere post external diameter is less than the epimere post, and spring housing is on the epimere post; The end of hypomere post is connected with limited cap, is provided with chamfering between epimere post and the hypomere post, and the through-hole wall of seal cover is provided with a circle groove; Be provided with sealing ring in the groove; Sealing ring is fitted on the chamfering between epimere post and the hypomere post, and the below of through-hole wall upper groove is provided with flange, and flange and hypomere post are adaptive.Socket spring on the joint pin outer wall, the upper end of spring is fixedly connected on the lower end of dowel, and the lower end of spring is fixedly connected on the upper end of seal cover.Spring is in extended state always, holds seal cover and makes seal cover cover the lower surface of water seal main body firmly.The hypomere post of joint pin passes the through hole of seal cover, prevents when seal cover from vertically moving up and down that in horizontal moving, the position that makes seal cover cover water seal main body lower surface is difficult for changing.Sealing ring is fitted on the chamfering between epimere post and the hypomere post, played the effect of sealing, prevents that foul smell from emerging in the water seal main body.
As preferably, the edge of said seal cover is provided with downward flange, and the lateral wall of flange cooperates with the inside wall of water seal main body, and the lower end of flange is provided with the flange of vertical flange, and flange is towards the center position away from seal cover.Flange makes seal cover be difficult for laterally moving, and seal cover covers in water seal main body lower surface more reliable.Flange has played spacing effect, prevents that seal cover from moving in the water seal main body.
As preferably, be provided with chamfering between the lower surface of said water seal main body and the inwall, the link position with flange on the flange outer wall is provided with groove, is connected with sealing ring in the groove, and sealing ring protrudes from the outer wall of flange and is attached on the chamfering.Sealing ring is fitted on the lower surface and the chamfering between the inwall of water seal main body, has played good sealing function, prevents that foul smell from emerging in the water seal main body.
As preferably, said seal cover from the edge tilt of expansion link link position to seal cover, incline direction is downward.Seal cover tilts to have increased the area of upper surface, equals the principle that pressure multiply by lifting surface area according to pressure, has also just increased the pressure that seal cover receives, and seal cover is opened downwards more easily.The upper surface that tilts makes sewage be more prone to flow out from the edge of seal cover.
As preferably; On the said water seal main body lateral wall near a week up and down be interval with three convex tendons of upper end position along the water seal main body; Convex tendon near water seal main body upper surface is provided with position-limiting ear; Floor drain frame inside wall is provided with the ear groove adaptive with position-limiting ear, is provided with sealing ring between two convex tendons in addition on the water seal main body lateral wall.
The water seal main body is connected in the floor drain frame through position-limiting ear and ear groove, connects reliable difficult moving.Sealing ring has played the effect of sealing, prevents that sewage from flowing down between water seal main body and floor drain frame.
As preferably, said floor drain frame is funnel-form, is provided with strainer in the floor drain frame; The center of strainer is provided with cap; Cap covers the upper end of joint pin, and the outward flange overlap joint of strainer is on the sidewall of floor drain frame inclining, and strainer is provided with the rhone of some conductings.Funnelform floor drain frame makes things convenient for the collection of sewage to discharge, and strainer has carried out further filtration to sewage, has further prevented to flow in the water seal main body than bigger material.
As preferably; The outside, said embedded box bottom surface is provided with the connecting ring to lower convexity, and the internal diameter of connecting ring and the gutter of sewer are adaptive, and the lower surface of connecting ring is provided with groove near the gutter side; Be connected with the V-type circle in the groove; V-type circle inboard is fitted on the gutter, and the lower end of connecting ring is connected with blind nut, and blind nut is being shored the V-type circle.The V-type circle has increased the compactness that is connected between embedded box and the gutter, not only can prevent that sewage from flowing out between embedded box and gutter, can also increase the reliability that embedded box connects.
Compared with prior art, the invention has the beneficial effects as follows: (1) service time is long again, and floor drain also is difficult for stopping up; (2) floor drain has the function of deodorization; (3) floor drain can prevent that big foreign material from flowing to sewer.
Description of drawings
Fig. 1 is the sectional view of embodiments of the invention 1;
Fig. 2 is the sectional view of embodiments of the invention 2;
Fig. 3 is the scheme of installation of embedded box of the present invention;
Fig. 4 is the explosive view of embodiments of the invention 1;
Fig. 5 is the scheme of installation of embodiments of the invention 1;
Among the figure: 1, embedded box, 2, the floor drain frame, 3, filtering cover, 4, the water seal main body, 5, over cap, 6, strainer; 7, gutter, 8, the V-type circle, 9, blind nut, 10, swell fixture, 11, connecting ring, 12, support column; 21, ear groove, 40, convex tendon, 41, joint pin, 411, the epimere post, 412, the hypomere post, 413, limited cap; 42, dowel, 43, expansion link, 44, spring, 45, seal cover, 46, end socket, 47, flange; 48, flange, 49, chamfering, 50, position-limiting ear, 51, sealing ring, 61, blind nut, 62, rhone.
The specific embodiment
Pass through specific embodiment below, and combine accompanying drawing, technical scheme of the present invention is done further to specifically describe:
Embodiment 1: a kind of floor drain (referring to accompanying drawing 1, accompanying drawing 4); Comprise embedded box 1, be installed in floor drain frame 2 in the embedded box 1, be installed in the filtering cover 31 of floor drain frame 2 upper ends, embedded box 1 is square, and embedded box 1 is installed in the pre-buried hole; Diagonal position is respectively equipped with a support column 12 on the upper surface of the upper edge of embedded box 1; Be removably connected with over cap 5 on the support column 12, over cap 5 covers on the open upper end of embedded box 1, prevents that foreign material from getting into embedded box 1 and gutter 7.Four angle positions of over cap 5 be respectively equipped with one with the support column 12 adaptive connecting holes that are connected, four connecting holes are set make things convenient for the installation of over cap 5 to connect.The outside, embedded box 1 bottom surface is provided with the connecting ring 11 to lower convexity; The internal diameter of connecting ring 11 and the gutter of sewer 7 are adaptive, and the lower surface of connecting ring 11 is provided with groove near gutter 7 sides, is connected with V-type circle 8 in the groove; V-type circle 8 inboards are fitted on the gutter 7; The lateral wall of connecting ring 11 is provided with screw thread, and the lower end of connecting ring 11 is through the blind nut 9 that has been threaded, and blind nut 9 is being shored V-type circle 8.Be socketed with the hollow and the water seal main body 4 of conducting up and down in the floor drain frame 2, water seal main body 4 is cylindrical, is provided with joint pin 5 in the water seal main body 4; Joint pin 5 hollows and conducting up and down; Joint pin 5 is cylindrical, is connected with dowel 42 between joint pin 5 and the water seal main body 4, and dowel 42 has three; Evenly be arranged on a week of joint pin 5; Dowel 42 1 sides are connected on the outer wall of joint pin 5, and another relative side is connected on the inside wall of water seal main body 4, water seal main body 5, dowel 42, joint pin 5 integrative-structures.Be connected with the expansion link 43 that can in joint pin 5, slide up and down in the joint pin 5; Expansion link 43 is T-shaped; The diameter that the diameter of joint pin 5 lower ending openings and expansion link are put than fine positioning is adaptive; Expansion link 43 is adaptive than the inwall of the diameter of coarse position and joint pin 5, and the lower surface of joint pin 5 is stretched out in the lower end of expansion link 43, and the diameter of joint pin 5 lower ending openings is less than the diameter of joint pin 5 internal cavities.The upper end of joint pin 5 is connected with end socket 46.Joint pin 5 is connected with circular seal lid 45 through spring 44, and spring 44 is enclosed between the upper end and joint pin 5 lower ends on the expansion link 43, and spring 43 is in compressive state always, and seal cover 45 is connected on the lower surface of expansion link 43 through screw.The edge of seal cover 45 is provided with downward flange 47; The lateral wall of flange 47 cooperates with the inside wall of water seal main body 4, and the lower end of flange 47 is provided with the flange 48 of vertical flange 47, and flange 48 is towards the center position away from seal cover 45; Be provided with chamfering 49 between the lower surface of water seal main body 4 and the inwall; Link position with flange 48 on flange 47 outer walls is provided with groove, is connected with sealing ring 51 in the groove, and sealing ring 51 protrudes from the outer wall of flange 47 and is attached on the chamfering 49; Seal cover 45 from the edge tilt of expansion link 43 link positions to seal cover 45, incline direction is downward.The lower surface of seal cover 45 and water seal main body 4 offsets and covers the lower surface of water seal main body 4.On water seal main body 4 lateral walls near a week up and down be interval with three convex tendons 40 of upper end position along water seal main body 4; Convex tendon 40 near water seal main body 4 upper surfaces is provided with protruding position-limiting ear 50; Floor drain frame 2 inside walls are provided with the ear groove 21 adaptive with position-limiting ear 50, are provided with sealing ring 51 between two convex tendons 40 in addition on water seal main body 4 lateral walls.Floor drain frame 2 is funnel-form; Be provided with strainer 6 in the floor drain frame 2; The center of strainer 6 is provided with the cap 61 that raises up, and cap 61 covers the upper end of joint pin 5, and the outward flange overlap joint of strainer 6 is on floor drain frame 2 angled side walls; Strainer 6 is provided with the rhone 62 of ten conductings, and rhone 62 is set in parallel on the strainer 6.Floor drain frame 2 is near the inwall inwardly protruding of lower end, and outer wall is inwardly recessed, and floor drain frame 2 is adaptive in this raised position and water seal main body 4 outer walls, and floor drain frame 2 is adaptive at the through hole of the bottom surface of this recessed position and embedded box.The through hole cross section of floor drain frame 2 bottom surfaces is the step of one-level, and the through hole of upper end smaller aperture due is connected adaptive with floor drain frame 2, consistent, the dead in line of interior hole size of the through hole of lower end larger aperture and connecting ring 11.Equidistantly be provided with 12 drain holes 31 on the filtering cover 3 around the center of circle.
One and the adaptive installing hole of embedded box are dug in the position that the preceding elder generation of installation floor drain (referring to accompanying drawing 3) fixes a drainpipe on the ground; Then on the connecting ring with V-type circle and blind nut connecting band embedded box; Again embedded box is installed in the installing hole; Through swell fixture 10 embedded box is fixedly connected in the installing hole, swell fixture has two to be located at diagonally opposing corner position, embedded box bottom surface.Over cap is installed on embedded box then.When floor drain (referring to accompanying drawing 5) is installed; Pull down over cap, the surfaces coated upper glass glue in the upper edge of embedded box is connected to the floor drain frame in the embedded box then; The water seal main body is being connected in the floor drain frame; Position-limiting ear is connected in the ear groove, installs strainer, and the cap of strainer covers the end socket of joint pin upper end.On the floor drain frame, install filtering cover at last.The elastic reaction of spring makes expansion link haul seal cover, and the sealing ring in the seal cover edge groove is attached on the chamfering of water seal main body lower surface tightly, guarantees the sealing of water seal main body, prevents that the foul smell of gutter from emerging in the water seal main body.Behind the hollow position in effluent stream is gone into the water seal main body; Because the pressure effect of water; The upper surface of seal cover just receives downward pressure, and after the pressure of water reached certain value, seal cover just moved down; Seal cover just no longer covers the lower surface of water seal main body, and sewage just flows to gutter in the water seal main body.Sewage is many more, and the pressure that the upper surface of seal cover receives is just big more, and the amount that seal cover moves down is just big more, and effluent discharge must be just fast more.After sewage has been arranged; More residual sewage of meeting in the water seal main body; The insufficient pressure that these sewage produce in the seal cover upper surface to be opening seal cover, and seal cover prevents that foul smell from emerging because the elastic reaction of spring covers on the lower surface of water seal main body again firmly in the water seal main body.
Embodiment 2: a kind of floor drain (referring to accompanying drawing 2), structure is similar with embodiment 1.Be connected with dowel between joint pin and the water seal main body, dowel is provided with through hole near the upper end of water seal main body in the middle of the seal cover, and through hole is passed in the joint pin lower end.Joint pin is divided into epimere post 411 and hypomere post 412; Hypomere post external diameter is less than the epimere post, and spring housing is connected on the epimere post lateral wall of joint pin, and the upper end of spring is fixedly connected on the dowel; The lower end of spring is fixedly connected on the upper end of seal cover, and spring is in extended state always.The end of hypomere post is connected with limited cap 413, and the external diameter of limited cap is greater than the diameter of seal cover intermediate throughholes, prevents the seal cover hypomere post that slips away.Be provided with chamfering between epimere post and the hypomere post; The through-hole wall of seal cover is provided with a circle groove, is provided with sealing ring in the groove, and sealing ring is fitted on the chamfering between epimere post and the hypomere post; The below of through-hole wall upper groove is provided with a circle flange, and flange and hypomere post are adaptive.The elastic reaction of spring hauls seal cover; Sealing ring in the seal cover outward flange groove is attached on the chamfering of water seal main body lower surface tightly; Sealing ring in the seal cover inward flange groove is attached on the chamfering between epimere post and the hypomere post tightly, has guaranteed the sealing between seal cover and the water seal main body internal cavity.
Above-described embodiment is two kinds of preferable schemes of the present invention, is not that the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (10)
1. floor drain; Comprise embedded box (1), be installed in floor drain frame (2) in the embedded box, be installed in the filtering cover (31) of floor drain frame upper end; It is characterized in that, be socketed with the water seal main body (4) of hollow and conducting up and down in the said floor drain frame, be provided with joint pin (5) in the water seal main body; Joint pin is connected with seal cover (45) through spring (44), and the lower surface of seal cover and water seal main body offsets and covers the lower surface of water seal main body.
2. floor drain according to claim 1 is characterized in that, said joint pin hollow and conducting up and down; Be connected with dowel (42) between joint pin and the water seal main body; Be connected with the expansion link (43) that can in joint pin, slide up and down in the joint pin, spring housing is between upper end on the expansion link and joint pin lower end, and spring is in compressive state always; The lower surface of joint pin is stretched out in the lower end of expansion link, and seal cover is connected on the lower surface of expansion link.
3. floor drain according to claim 1 is characterized in that, is connected with dowel (42) between said joint pin and the water seal main body; Dowel is provided with through hole near the upper end of water seal main body in the middle of the seal cover, and through hole is passed in the joint pin lower end; Spring housing is connected on the lateral wall of joint pin; The upper end of spring is fixedly connected on the dowel, and the lower end of spring is fixedly connected on the upper end of seal cover, and spring is in extended state always.
4. according to claim 1 or 2 or 3 described floor drains; It is characterized in that the edge of said seal cover is provided with downward flange (47), the lateral wall of flange cooperates with the inside wall of water seal main body; The lower end of flange is provided with the flange (48) of vertical flange, and flange is towards the center position away from seal cover.
5. floor drain according to claim 4; It is characterized in that, be provided with chamfering (49) between the lower surface of said water seal main body and the inwall, the link position with flange on the flange outer wall is provided with groove; Be connected with sealing ring (51) in the groove, sealing ring protrudes from the outer wall of flange and is attached on the chamfering.
6. floor drain according to claim 3 is characterized in that, said joint pin is divided into epimere post (411) and hypomere post (412); Hypomere post external diameter is less than the epimere post, and spring housing is on the epimere post, and the end of hypomere post is connected with limited cap (413); Be provided with chamfering between epimere post and the hypomere post; The through-hole wall of seal cover is provided with a circle groove, is provided with sealing ring in the groove, and sealing ring is fitted on the chamfering between epimere post and the hypomere post; The below of through-hole wall upper groove is provided with flange, and flange and hypomere post are adaptive.
7. floor drain according to claim 2 is characterized in that, said seal cover from the edge tilt of expansion link link position to seal cover, incline direction is downward.
8. floor drain according to claim 4; It is characterized in that; Be interval with three convex tendons (40) near upper end position one week up and down along the water seal main body on the said water seal main body lateral wall; Convex tendon near water seal main body upper surface is provided with position-limiting ear (50), and floor drain frame inside wall is provided with the ear groove (21) adaptive with position-limiting ear, is provided with sealing ring between two convex tendons in addition on the water seal main body lateral wall.
9. floor drain according to claim 8; It is characterized in that said floor drain frame is funnel-form, be provided with strainer (6) in the floor drain frame; The center of strainer is provided with cap (61); Cap covers the upper end of joint pin, and the outward flange overlap joint of strainer is on the sidewall of floor drain frame inclining, and strainer is provided with the rhone (62) of some conductings.
10. floor drain according to claim 5 is characterized in that, the outside, said embedded box bottom surface is provided with the connecting ring (11) to lower convexity; The internal diameter of connecting ring and the gutter of sewer (7) are adaptive; The lower surface of connecting ring is provided with groove near the gutter side, is connected with V-type circle (8) in the groove, and V-type circle inboard is fitted on the gutter; The lower end of connecting ring is connected with blind nut (9), and blind nut is being shored the V-type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110410821 CN102535632B (en) | 2011-12-12 | 2011-12-12 | Floor drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110410821 CN102535632B (en) | 2011-12-12 | 2011-12-12 | Floor drain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102535632A true CN102535632A (en) | 2012-07-04 |
| CN102535632B CN102535632B (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110410821 Expired - Fee Related CN102535632B (en) | 2011-12-12 | 2011-12-12 | Floor drain |
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| CN (1) | CN102535632B (en) |
Cited By (11)
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| CN104264776A (en) * | 2014-09-25 | 2015-01-07 | 陈菊芳 | Deodorizing type underground draining device |
| CN104563234A (en) * | 2014-11-13 | 2015-04-29 | 宁波敏宝卫浴五金水暖洁具有限公司 | Odor-resistant launching component |
| CN105839770A (en) * | 2016-05-27 | 2016-08-10 | 宁波市鄞州安琪阀门有限公司 | Odor-resistant floor drain |
| CN105917054A (en) * | 2014-04-02 | 2016-08-31 | Smz株式会社 | Drain trap |
| CN107419794A (en) * | 2017-06-02 | 2017-12-01 | 华中威特（大连）科技有限公司 | Drain pipe connecting structure and construction method |
| CN107700636A (en) * | 2017-10-13 | 2018-02-16 | 东宁晟（北京）数字科技有限公司 | A kind of wireless electric cuts seal floor drain |
| CN108560681A (en) * | 2018-05-23 | 2018-09-21 | 浙江中财管道科技股份有限公司 | A kind of pre-buried Matheson and Dresser joint of novel building draining |
| CN109763557A (en) * | 2019-02-21 | 2019-05-17 | 宁波高新区大维卫浴用品有限公司 | A kind of novel liquid packing and the floor drain using the liquid packing |
| JP2020090833A (en) * | 2018-12-05 | 2020-06-11 | アロン化成株式会社 | Deodorization valve mechanism and lid including the same |
| CN111691531A (en) * | 2019-03-14 | 2020-09-22 | 河南五建建设集团有限公司 | Disposable embedded floor drain for drainage of constructional engineering and construction method thereof |
| CN113482131A (en) * | 2021-07-29 | 2021-10-08 | 张新 | Spring type floor drain |
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| US11846093B2 (en) | 2020-09-15 | 2023-12-19 | Joe Pasquesi | Waterless floor drain trap valve |
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