CN203603248U - Float self-sealing type water trap anti-smell floor drain - Google Patents
Float self-sealing type water trap anti-smell floor drain Download PDFInfo
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- CN203603248U CN203603248U CN201320754501.XU CN201320754501U CN203603248U CN 203603248 U CN203603248 U CN 203603248U CN 201320754501 U CN201320754501 U CN 201320754501U CN 203603248 U CN203603248 U CN 203603248U
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- floor drain
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Abstract
A float self-sealing type water trap anti-smell floor drain is composed of a floor drain base, a floor drain water grate cover and an anti-smell water trap, wherein a floor drain base upper port is covered with the floor drain water grate cover, and the anti-smell water trap is located in the floor drain base. The anti-smell water trap located in the floor drain base is a multi-water-ring sealed type water trap composed of a float type seal cover and a plurality of annular water trapping grooves formed in a multi-water-ring type water trapping grooves in the bottom of the floor drain base or a plurality of annular water trapping grooves formed in the bottom of the floor drain base, a plurality of thin wall rings at the bottom of the float type seal cover are inserted into the annular water trapping grooves in the multi-water-ring sealed type water strapping grooves below the thin wall rings respectively, wherein the multi-water-ring sealed type water strapping grooves are in one-to-one correspondence with the thin wall rings. Drainage holes located in the bottom of the floor drain base are sealed at the bottom by the multi-water-ring sealed type water trap, and a surrounding type diversion limit plate is arranged on the lower plane of the floor drain water grate cover, wherein an upper port of the floor drain base is covered with the floor drain water grate cover, the surrounding type diversion limit plate is arranged on the outer side of the float type seal cover in a surrounding mode, and a gap is formed between the surrounding type diversion limit plate and the float type seal cover.
Description
Technical field
The utility model relates to a kind of anti-odor floor drain for flooring draining, particularly a kind of float self-closed type trap anti-odor floor drain.
Background technology
At present, known indoor drainage floor drain is mainly made up of floor drain seat, drain cover and trap, but these floor drains have cause water in it can evaporate very soon because trap is shallow dry, cannot seal by the anti-foul smell coming up of sewer; What have injects the trap part of floor drain in the drain hole of sewer in order to add deep-seal trap, although this floor drain can extend the remaining time of water in trap, its drainage speed also obviously reduces, and particularly in the time of washing machine drainage, can produce sewage outflow; Have in order not only to there is larger displacement but also there is darker trap the setting height(from bottom) that have to strengthen floor drain, general building cannot be installed and used; Number of patent application is the utility model of CN200420021970, design a kind of automatic drainage deodorant floor drain with floating ring odor isolating bowl, because the water in this floor drain trap can evaporate dry very soon, in the situation that drain pipe port place hangs with foreign material, can cause floating-ring seal to be lost efficacy, thereby cannot seal by the anti-foul smell coming up of sewer.
Summary of the invention
In order to prevent that the water in floor drain trap from evaporating dry at short notice, and make floor drain can meet people's large and low requirement of setting height(from bottom) to its displacement, the utility model has designed a kind of float self-closed type trap anti-odor floor drain, this floor drain had both had less setting height(from bottom) and good drainability, can prevent for a long time that again the water evaporation in floor drain trap is dry, there is good drainability and long-term anti-odor function.
The utility model solves the technical scheme that its technical problem adopts: float self-closed type trap anti-odor floor drain comprises a floor drain seat (1), an anti-odor trap that covers the floor drain water drain grid cover (4) suitable for reading at floor drain seat and be positioned at floor drain seat.Wherein: the anti-odor trap that is positioned at floor drain seat is made up of the multiple annular water storage flume (10) on many liquid-ring types water storage flume (2) that is placed on floor drain seat bottom and floating ground lid float-type seal cover (3) thereon
the closed trap of the many water rings of type (5), several thin wall circular (12) of float-type seal cover bottom are inserted respectively on the many liquid-ring types water storage flume being positioned under it and its annular water storage flume (10) one to one, below the closed trap of these many water rings is enclosed in the drain hole (6) that is positioned at floor drain seat bottom, the center line of many liquid-ring types water storage flume center hole coincides with the center line that is positioned at floor drain seat bottom discharge hole, float-type seal cover overlaps substantially with the centre of form of many liquid-ring types water storage flume, cover the circulating type water conservancy diversion limiting plate (16) that has to be looped around float-type seal cover outside and to there is certain interval with it on floor drain seat floor drain water drain grid cover lower plane suitable for reading, in addition, anti-odor trap can also form with the multiple annular water storage flume on floor drain seat (19) bottom of multiple annular water storage flumes and floating ground lid float-type seal cover (3) thereon by being positioned at
the closed trap of the many water rings of type (20), several thin wall circular (12) of float-type seal cover bottom inserts be respectively positioned under it with its annular water storage flume one to one, this
the closed trap of the many water rings of type (20) is by below being positioned at and being enclosed in the drain hole of multiple annular water storage flume floor drain seats (19) bottoms.The shape of floor drain seat (1) is similar to the shape of traditional water seal type floor drain seat, its main body is circle or the Square barrel body end of with, there is a circular row water hole (6) with lower edge at middle part at the bottom of its barrel, be an outwards flat square seat board of stretching in floor drain seat main body outside suitable for reading, have one in the inboard of this square seat board for the concave station of floor drain water drain grid cover is installed, many liquid-ring types water storage flume (2) is made up of the multiple annular water storage flume (10) with the common flat and common centre of form and a settling pit (9) connected with each other, settling pit is positioned at the outside of annular water storage flume, outside settling pit, the trough rim of the aspect ratio of trough rim annular water storage flume is low, the trough rim height of each annular water storage flume is identical, the inboard trough rim that is positioned at inboard annular water storage flume is also the center circle hole wall of many liquid-ring types water storage flume, this center circle hole wall extends downwardly into below many liquid-ring types water storage flume flat, on the external surface that is positioned at the center circle hole wall of many liquid-ring types water storage flume below flat, have one outwardly open for the annular groove (7) of sealing ring is installed, the external diameter on annular groove limit is less than the internal diameter of floor drain seat drain hole, in annular groove, be installed with one for sealing the sealing ring (8) in gap between floor drain seat draining hole wall inner surface and many liquid-ring types water storage flume center circle hole wall external surface, the main body of float-type seal cover (3) is a circle or the square plate-like floating body (11) that can float in liquid, it has a centre higher than the acclive end face of being with of periphery, there is a circular flat counterbore that aperture is downward at the middle part of its lower plane, the diameter of counterbore is greater than the external diameter of annular water storage flume maximum on many liquid-ring types water storage flume, below this counterbore flat-top, there are multiple thin wall circular (12) take float-type cap body center line as the center of circle, the quantity of thin wall circular is identical with the quantity of the annular water storage flume on many liquid-ring types water storage flume, the central diameter of each thin wall circular equals respectively on many liquid-ring types water storage flume (2) central diameter of annular water storage flume corresponding thereto successively, the height of thin wall circular is less than the trough rim height of many liquid-ring types water storage flume, there is a sagging cylindrical floating body (13) with conical bottom at the middle part of counterbore flat-top, the external diameter of cylindrical floating body is less than the internal diameter of many liquid-ring types water storage flume center hole, the main body of floor drain water drain grid cover (4) be one with multiple steam vents (15), circular or the square bluff body (14) of a circulating type water conservancy diversion limiting plate (16) and multiple inlet opening (17), steam vent (15) is uniformly distributed along the periphery of floor drain water drain grid cover main body, and be positioned at the outside of float-type seal cover (3) appearance profile, on the lower plane of the floor drain water drain grid cover main body outside steam vent, there is a circular or square circulating type water conservancy diversion limiting plate (16) that is looped around float-type seal cover outside and there is certain interval with it, in the plane of the floor drain water drain grid cover main body outside circulating type water conservancy diversion limiting plate, be uniform-distribution with multiple inlet openings (17) along the periphery of floor drain water drain grid cover, on the lower plane of floor drain water drain grid cover main body, be uniform-distribution with four and sagging prevent the limited post (18) that floor drain water drain grid cover comes off from floor drain seat, the lateral surface of four limited posts is all near the inwall of the barrel-shaped body of floor drain seat.In addition, in order to simplify float self-closed type trap anti-odor drain structure, meet the needs of different user, floor drain seat (1) and many liquid-ring types water storage flume (2) can be integrated, make a floor drain seat (19) with multiple annular water storage flumes, with its replacement floor drain seat (1) and many liquid-ring types water storage flume (2), quantity and size with the multiple annular water storage flumes on the floor drain seat (19) of multiple annular water storage flumes are identical with quantity and the size of the multiple annular water storage flumes on many liquid-ring types water storage flume (2), the inboard trough rim that is positioned at inboard annular water storage flume is also the circular row water hole wall of floor drain seat, this draining hole wall extends downwardly into below floor drain seat flat.
The beneficial effects of the utility model are, displacement is large, setting height(from bottom) is low, can prevent for a long time that the water evaporation in floor drain trap is dry, has long-term anti-odor function, and simple in structure, the part in floor drain is easy to clean.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is further illustrated.
Fig. 1 is the top view of embodiment.
Fig. 2 is the A-A sectional view of embodiment.
Fig. 3 is the sectional view of floor drain seat.
Fig. 4 is many liquid-ring types water storage flume sectional view.
Fig. 5 is float-type seal cover sectional view.
Fig. 6 is floor drain shutter grate lid upward view.
Fig. 7 is floor drain shutter grate lid A-A sectional view.
Fig. 8 is that embodiment adopts the A-A sectional view with multiple annular water storage flume floor drain seat floor drains.
Fig. 9 is the A-A sectional view with multiple annular water storage flume floor drain seats.
Figure 10 is that embodiment is land drainage view.
1. floor drain seats in figure, 2. more than liquid-ring type water storage flume, 3. float-type seal cover, 4. floor drain water drain grid cover, 5.
the closed trap of the many water rings of type, 6. drain hole, 7. annular groove, 8. sealing ring, 9. settling pit, 10. annular water storage flume, 11. plate-like floating bodies, 12. thin wall circular, the 13. cylindrical floating bodies with conical bottom, 14. bluff bodies, 15. steam vents, 16. circulating type water conservancy diversion limiting plates, 17. inlet openings, 18. limited posts, the 19. floor drain seats with multiple annular water storage flumes, 20.
the closed trap of the many water rings of type.
The specific embodiment
In Fig. 1, square floor drain shutter grate lid (4) covers on floor drain seat (1) or the floor drain seat (19) with multiple annular water storage flumes.
In Fig. 2, many liquid-ring types water storage flume (2) is placed on the bottom of floor drain seat (1), float-type seal cover (3) covers on two the annular water storage flumes (10) on many liquid-ring types water storage flume, two thin wall circular (12) of float-type seal cover bottom are inserted respectively on the many liquid-ring types water storage flume being positioned under it and its two annular water storage flumes (10) one to one, and float-type seal cover and many liquid-ring types water storage flume have formed jointly
the closed trap of the many water rings of type (5), below the closed trap of these many water rings is enclosed in the drain hole (6) that is positioned at floor drain seat bottom, the center line of many liquid-ring types water storage flume center hole coincides with the center line that is positioned at floor drain seat bottom discharge hole, float-type seal cover overlaps substantially with the centre of form of many liquid-ring types water storage flume, at the annular groove (7) being positioned on the center circle hole wall external surface of many liquid-ring types water storage flume below flat, be installed with one for sealing the sealing ring (8) in gap between floor drain seat draining hole wall inner surface and many liquid-ring types water storage flume center circle hole wall external surface, cover the circulating type water conservancy diversion limiting plate (16) that has to be looped around float-type seal cover outside and to there is certain interval with it on floor drain seat floor drain water drain grid cover lower plane suitable for reading.
In Fig. 3, the main body of floor drain seat (1) is the square barrel shape body end of with, there is a circular row water hole with lower edge at middle part at the bottom of its barrel, be an outwards flat square seat board of stretching in the outside of floor drain seat main body water inlet, have one in the inboard of this square seat board for the downward concave station of floor drain water drain grid cover is installed.
In Fig. 4, many liquid-ring types water storage flume (2) is made up of two annular water storage flumes (10) with the common flat and common centre of form and a settling pit (9) connected with each other, settling pit is positioned at the outside of annular water storage flume, outside settling pit, the trough rim of the aspect ratio of trough rim annular water storage flume is low, the trough rim height of each annular water storage flume is identical, the inboard trough rim that is positioned at inboard annular water storage flume is also the center circle hole wall of many liquid-ring types water storage flume, this center circle hole wall extends downwardly into below many liquid-ring types water storage flume flat, on the external surface that is positioned at the center circle hole wall of many liquid-ring types water storage flume below flat, have one outwardly open for the annular groove (7) of sealing ring is installed, the external diameter on annular groove limit is less than the internal diameter of floor drain seat drain hole, in annular groove, be installed with one for sealing the O RunddichtringO (8) in gap between floor drain seat draining hole wall inner surface and many liquid-ring types water storage flume center circle hole wall external surface.
In Fig. 5, the main body of float-type seal cover (3) is a square hollow plate-like floating body (11) that can float in liquid, it has a centre higher than the acclive end face of being with of periphery, there is a circular flat counterbore that aperture is downward at the middle part of its lower plane, the diameter of counterbore is greater than the external diameter of annular water storage flume maximum on many liquid-ring types water storage flume, below this counterbore flat-top, there are two thin wall circular (12) take float-type cap body center line as the center of circle, the central diameter of each thin wall circular equals respectively on many liquid-ring types water storage flume (2) central diameter of annular water storage flume corresponding thereto successively, the height of thin wall circular is less than the trough rim height of many liquid-ring types water storage flume, sagging a hollow cylindrical floating body with conical bottom at the middle part of counterbore flat-top, the external diameter of cylindrical floating body is less than the internal diameter of many liquid-ring types water storage flume center hole.
In Fig. 6 and Fig. 7, the main body of floor drain water drain grid cover (4) be one with multiple steam vents (15), the quad flat body (14) of a circulating type water conservancy diversion limiting plate (16) and multiple inlet opening (17), steam vent (15) is uniformly distributed along the periphery of floor drain water drain grid cover main body, and be positioned at the outside of float-type seal cover (3) appearance profile, on the lower plane of the floor drain water drain grid cover main body outside steam vent, there is a square circulating type water conservancy diversion limiting plate (16) that is looped around float-type seal cover outside and there is certain interval with it, in the plane of the floor drain water drain grid cover main body outside circulating type water conservancy diversion limiting plate, be uniform-distribution with multiple inlet openings (17) along the periphery of floor drain water drain grid cover, on the lower plane of floor drain water drain grid cover main body, be uniform-distribution with four and sagging prevent the limited post (18) that floor drain water drain grid cover comes off from floor drain seat, the lateral surface of four limited posts is all near the inwall of the barrel-shaped body of floor drain seat.
In Fig. 8, in floor drain, adopted the floor drain seat (19) with two annular water storage flumes, anti-odor trap forms with two annular water storage flumes on floor drain seat (19) bottom of two annular water storage flumes and floating ground lid float-type seal cover (3) thereon by being positioned at
the closed trap of the many water rings of type (20), two thin wall circular (12) of float-type seal cover bottom insert be respectively positioned under it with its two annular water storage flumes one to one,
the closed trap of the many water rings of type (20) is by below being positioned at and being enclosed in the drain hole of two annular water storage flume floor drain seats (19) bottoms, float-type seal cover overlaps substantially with the centre of form of the floor drain seat (19) with two annular water storage flumes, covers the circulating type water conservancy diversion limiting plate (16) that has to be looped around float-type seal cover outside and to have certain interval with it on floor drain seat floor drain water drain grid cover (4) lower plane suitable for reading.
In Fig. 9, floor drain seat (1) and many liquid-ring types water storage flume (2) are integrated, make a floor drain seat (19) with two annular water storage flumes, with its replacement floor drain seat (1) and many liquid-ring types water storage flume (2), size with two annular water storage flumes on the floor drain seat (19) of two annular water storage flumes is identical with the size of two annular water storage flumes on many liquid-ring types water storage flume (2), the inboard trough rim that is positioned at inboard annular water storage flume is also the circular row water hole wall with the floor drain seat (19) of two annular water storage flumes, this draining hole wall extends downwardly into below floor drain seat flat.
In Figure 10, demonstrate duty when float self-closed type trap anti-odor floor drain is land drainage, in the time that the inlet opening of ground water on floor drain water drain grid cover flows into floor drain seat, float-type seal cover upwards floats under buoyancy of water effect, make trap and floor drain seat drain hole in opening, now ground water is able to successfully flow into sewer through floor drain seat drain hole, when float-type seal cover loss of buoyance after ground water emptying, can automatically drop on the annular water storage flume of many liquid-ring types water storage flume, jointly form with it
the closed trap of the many water rings of type, below the foul smell being returned up by floor drain seat drain hole is enclosed in, the closed trap of many water rings can prevent or greatly to delay the evaporation of water in many liquid-ring types water storage flume dry, can intercept long-term effectively by the anti-foul smell coming up of sewer; In addition, the O RunddichtringO (8) being arranged in the annular groove (7) on the flat center circle hole wall below of many liquid-ring types water storage flume can seal the gap between floor drain seat draining hole wall inner surface and many liquid-ring types water storage flume center circle hole wall external surface closely, covers the circulating type water conservancy diversion limiting plate (16) that has to be looped around float-type seal cover outside and to have certain interval with it on floor drain seat floor drain water drain grid cover lower plane suitable for reading; Floor drain water drain grid cover, float-type seal cover and many liquid-ring types water storage flume can take out and clean very easily from floor drain seat.
Claims (6)
1. a float self-closed type trap anti-odor floor drain, the anti-odor trap that is covered the floor drain water drain grid cover (4) suitable for reading at floor drain seat and be positioned at floor drain seat by a floor drain seat (1), one forms, and it is characterized in that: the anti-odor trap that is positioned at floor drain seat is made up of the multiple annular water storage flume (10) on many liquid-ring types water storage flume (2) that is placed on floor drain seat bottom and floating ground lid float-type seal cover (3) thereon
the closed trap of the many water rings of type (5), several thin wall circular (12) of float-type seal cover bottom are inserted respectively on the many liquid-ring types water storage flume being positioned under it and its annular water storage flume (10) one to one, below the closed trap of these many water rings is enclosed in the drain hole (6) that is positioned at floor drain seat bottom, the center line of many liquid-ring types water storage flume center hole coincides with the center line that is positioned at floor drain seat bottom discharge hole, float-type seal cover overlaps substantially with the centre of form of many liquid-ring types water storage flume, cover the circulating type water conservancy diversion limiting plate (16) that has to be looped around float-type seal cover outside and to there is certain interval with it on floor drain seat floor drain water drain grid cover lower plane suitable for reading, in addition, anti-odor trap can also form with the multiple annular water storage flume on floor drain seat (19) bottom of multiple annular water storage flumes and floating ground lid float-type seal cover (3) thereon by being positioned at
the closed trap of the many water rings of type (20), several thin wall circular (12) of float-type seal cover bottom inserts be respectively positioned under it with its annular water storage flume one to one, this
the closed trap of the many water rings of type (20) is by below being positioned at and being enclosed in the drain hole of multiple annular water storage flume floor drain seats (19) bottoms.
2. float self-closed type trap anti-odor floor drain according to claim 1, it is characterized in that: the main body of floor drain seat (1) is circle or the Square barrel body end of with, there is a circular row water hole (6) with lower edge at middle part at the bottom of its barrel, be an outwards flat square seat board of stretching in floor drain seat main body outside suitable for reading, have one in the inboard of this square seat board for the concave station of floor drain water drain grid cover is installed.
3. float self-closed type trap anti-odor floor drain according to claim 1, it is characterized in that: many liquid-ring types water storage flume (2) is made up of the multiple annular water storage flume (10) with the common flat and common centre of form and a settling pit (9) connected with each other, settling pit is positioned at the outside of annular water storage flume, outside settling pit, the trough rim of the aspect ratio of trough rim annular water storage flume is low, the trough rim height of each annular water storage flume is identical, the inboard trough rim that is positioned at inboard annular water storage flume is also the center circle hole wall of many liquid-ring types water storage flume, this center circle hole wall extends downwardly into below many liquid-ring types water storage flume flat, on the external surface that is positioned at the center circle hole wall of many liquid-ring types water storage flume below flat, have one outwardly open for the annular groove (7) of sealing ring is installed, the external diameter on annular groove limit is less than the internal diameter of floor drain seat drain hole, in annular groove, be installed with one for sealing the sealing ring (8) in gap between floor drain seat draining hole wall inner surface and many liquid-ring types water storage flume center circle hole wall external surface.
4. float self-closed type trap anti-odor floor drain according to claim 1, it is characterized in that: the main body of float-type seal cover (3) is a circle or the square plate-like floating body (11) that can float in liquid, it has a centre higher than the acclive end face of being with of periphery, there is a circular flat counterbore that aperture is downward at the middle part of its lower plane, the diameter of counterbore is greater than the external diameter of annular water storage flume maximum on many liquid-ring types water storage flume, below this counterbore flat-top, there are multiple thin wall circular (12) take float-type cap body center line as the center of circle, the quantity of thin wall circular is identical with the quantity of the annular water storage flume on many liquid-ring types water storage flume, the central diameter of each thin wall circular equals respectively on many liquid-ring types water storage flume (2) central diameter of annular water storage flume corresponding thereto successively, the height of thin wall circular is less than the trough rim height of many liquid-ring types water storage flume, have a sagging cylindrical floating body (13) with conical bottom at the middle part of counterbore flat-top, the external diameter of cylindrical floating body is less than the internal diameter of many liquid-ring types water storage flume center hole.
5. float self-closed type trap anti-odor floor drain according to claim 1, it is characterized in that: the main body of floor drain water drain grid cover (4) be one with multiple steam vents (15), circular or the square bluff body (14) of a circulating type water conservancy diversion limiting plate (16) and multiple inlet opening (17), steam vent (15) is uniformly distributed along the periphery of floor drain water drain grid cover main body, and be positioned at the outside of float-type seal cover (3) appearance profile, on the lower plane of the floor drain water drain grid cover main body outside steam vent, there is a circular or square circulating type water conservancy diversion limiting plate (16) that is looped around float-type seal cover outside and there is certain interval with it, in the plane of the floor drain water drain grid cover main body outside circulating type water conservancy diversion limiting plate, be uniform-distribution with multiple inlet openings (17) along the periphery of floor drain water drain grid cover, on the lower plane of floor drain water drain grid cover main body, be uniform-distribution with four and sagging prevent the limited post (18) that floor drain water drain grid cover comes off from floor drain seat, the lateral surface of four limited posts is all near the inwall of the barrel-shaped body of floor drain seat.
6. float self-closed type trap anti-odor floor drain according to claim 1, it is characterized in that: floor drain seat (1) and many liquid-ring types water storage flume (2) can be integrated, make a floor drain seat (19) with multiple annular water storage flumes, with its replacement floor drain seat (1) and many liquid-ring types water storage flume (2), quantity and size with the multiple annular water storage flumes on the floor drain seat (19) of multiple annular water storage flumes are identical with quantity and the size of the multiple annular water storage flumes on many liquid-ring types water storage flume (2) respectively, the inboard trough rim that is positioned at inboard annular water storage flume is also the circular row water hole wall of floor drain seat, this draining hole wall extends downwardly into below floor drain seat flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754501.XU CN203603248U (en) | 2013-11-25 | 2013-11-25 | Float self-sealing type water trap anti-smell floor drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754501.XU CN203603248U (en) | 2013-11-25 | 2013-11-25 | Float self-sealing type water trap anti-smell floor drain |
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| Publication Number | Publication Date |
|---|---|
| CN203603248U true CN203603248U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320754501.XU Expired - Fee Related CN203603248U (en) | 2013-11-25 | 2013-11-25 | Float self-sealing type water trap anti-smell floor drain |
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| CN (1) | CN203603248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661160A (en) * | 2018-07-20 | 2018-10-16 | 赵崇武 | Floor drain drains core with deodorization is rushed soon |
-
2013
- 2013-11-25 CN CN201320754501.XU patent/CN203603248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661160A (en) * | 2018-07-20 | 2018-10-16 | 赵崇武 | Floor drain drains core with deodorization is rushed soon |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20171125 |