CN100362176C - Sealed drainage appts. preventing counterflow - Google Patents
Sealed drainage appts. preventing counterflow Download PDFInfo
- Publication number
- CN100362176C CN100362176C CNB2004100425506A CN200410042550A CN100362176C CN 100362176 C CN100362176 C CN 100362176C CN B2004100425506 A CNB2004100425506 A CN B2004100425506A CN 200410042550 A CN200410042550 A CN 200410042550A CN 100362176 C CN100362176 C CN 100362176C
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- CN
- China
- Prior art keywords
- endosome
- release lever
- screen pack
- carriage release
- conduit
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
A kind of sealed drainage equipment which includes barreled endosome the medial side of which has inclined plane exhausting water stoma.second filter screen locating in the top of the endosome,also there are guide bar and hook in the central of it.moving bar the upper and lower part of which is hook and screw hole respectively and which lies in the medial of the catheter.elastic parts the upper and lower part connects to the second filter screen and moving bar respectively.elastic piece which connects to the lower end of the moving bar fixedly.This equipment is usually setuped on the outfall of the sewer at the general family,the sewage and rainwater outfall in the urban foundation construction,which prevents peculiar smell backward flow,completes drainage successfully,prevents underground soaking of building or housing and the soaking of the lower terrain of the riverside areas.setting on the outfall of the refrigerator to complete darinage and prevent the cold air outflow and hot air inflow.Moreover,this equipment can keep seal and prevent no-essential thernal loss.
Description
Technical field:
The present invention relates to a kind of sealed drainage plant, be arranged on sewage and the outfall of rainwater or the sewer of general family in the urban infrastructure in detail, prevent to transmit peculiar smell and phreatic refluence, successfully finish the drainage plant of drain function by outfall and sewer.This drainage plant can also be placed in the outfall of freezer, successfully discharges the liquid in the freezer, prevents the cold air outflow in the freezer.
Background technology:
The house that general physical features is low or the sewer of building are being soaked when raining heavyly easily.Probe into the immersion reason, though can not ignore the shortcoming on the fabric structure, most important reason is because the refluence of sewage in the sewer.Correspondingly, in order to prevent the refluence of sewage, the house that physical features is low or the sewers of building are provided with various drainings and prevent refluence equipment.But these equipment can only be brought into play a kind of in two kinds of functions, can not satisfy simultaneously to prevent to flow backwards and the needs of draining.
Have these two kinds of functions anti counter-flowing drainage plant as shown in figure 12, on the top of drum pipe 111 strainer 112 is set, be formed with the obvious step 113 of projection to central authorities in the bottom of described drum pipe 111 inboards, the opposite side relative with described step 113 forms projection 114.The axle 115 that runs through projection 114 is set in described protruding 114, and it is the butterfly 116 at center that the two ends of axle 115 are provided with axle 115, and the medial surface of the bottom surface of baffle plate 116 and drum pipe 111 is provided with torsion spring 117.
The aforesaid refluence equipment 110 that prevents, when not having sewage to flow in the described drum pipe 111, baffle plate 116 contacts step 113 under the tension force effect of torsion spring 117, promptly be in closed condition.In sewage flowed into described drum pipe 111, baffle plate 116 broke away from step 113 under the pressure effect of water, forms opening.Therefore the sewage that flows in the described drum pipe 111 can discharge smoothly, but the above-mentioned sewage refluence equipment 110 that prevents uses through long-time, torsion spring 117 can follow the string owing to corrosion, can not realize the function of self, thereby the afunction that causes baffle plate 116 can not be eliminated various peculiar smell and prevent that sewage from flowing backwards.Prevent the tension force that only depends on torsion spring 117 that opens or closes of baffle plate 116 in the sewage refluence equipment 110 in addition, so the contact force of baffle plate 116 and step 113 is little, compactness is poor, prevents a little less than the function of peculiar smell or refluence.
Also have the device in order to prevent that sewer from various peculiar smell taking place and prevent to flow backwards of many other types, but the shortcoming that can not finish various functions is simultaneously all arranged.
The flow direction of the drainage direction of sewage and the refluence of sewage and peculiar smell is just in time opposite, in order to ensure the realization of switch motion, need have the structure of height reliability, and these structures are quite complicated, cost an arm and a leg.The equipment of aqueous reflux and peculiar smell under this preventing with labyrinth, because of impurity that family's draining comprised such as swill etc., blockage phenomenon is lost its function easily; Thereby this device has just lost the effect that prevents to flow backwards with isolating peculiar smell, can cause indoor and outdoor to produce peculiar smell, pollution like this, particularly along the river and the region of planning, great river, as the management of having ignored the draining of flood and heavy rain and having prevented to flow backwards, the city will be submerged in the water, bring serious property loss, even seize people's life.
The water channel sewage road that is arranged on general family kitchen in addition connects the comb of usefulness, and the noise in the time of can reducing draining considers that from convenient angle of installing comb generally adopts telescoping tube.But can precipitate the swill in many kitchens on the inside wall of telescoping tube, peculiar smell also is diffused into indoor.Therefore in order to prevent the refluence of peculiar smell in the water channel sewage road, use the lid in another water channel sewage road, the use of this lid brings inconvenience to the kitchen life.
Because variations in temperature or sweep and wait other reasons, liquid of its inner generation will be discharged to the outside by outfall in the freezer.At this moment, if there is not device other, block outfall liquid is discharged to the outside by outfall after, the cold air in the freezer is diffused into the outside or outside hot air enters into cool house internal, and freezer just can not be finished the function of self.Along with the increase of cool house internal variations in temperature, denaturalization phenomenon can take place in the food that is stored at cool house internal.
Summary of the invention:
The present invention arises at the historic moment in order to address these problems, and provides a kind of and can completely cut off peculiar smell and the various pernicious gas that produces in the general sewer, prevents the refluence of peculiar smell and pernicious gas; Living water use can be successfully discharged again, the sealed drainage plant of sewage can also be prevented simultaneously by the reverse flow in drainage of low house of physical features or building.Particularly, sealing formula drainage plant flow into the ponding on the road in the time of successfully discharging because of heavy rain or plum rains, prevents to rise from reverse flow in drainage because of the river water level that connects the down town, makes entire city be submerged in the generation of the danger in the flood.
The drainage plant of sealing formula can also or be swept etc. the liquid that a variety of causes produces with freezer internal cause variations in temperature and successfully be discharged to the outside, discharges and can close outfall automatically after finishing, and prevents that the cold air in the freezer is diffused into the outside.
According to the sealed drainage plant that flows backwards of preventing provided by the invention, comprise barrel-shaped endosome with drain hole; Be installed in second screen pack on described endosome top, the central portion lower end of described second screen pack has hook; Be fixedly installed on the conduit on described second screen pack, (inside is provided with through hole to described conduit; Be located at the carriage release lever of catheter interior, described carriage release lever upper end has hook; Elastomeric element, its upper/lower terminal is connected respectively to the hook of described second screen pack and described carriage release lever; The lower end of described carriage release lever is fixedly connected with elastic component,, it is characterized in that: the lateral surface of described endosome (20) has flange, and the inboard of a tub-shaped body (10) has the holddown groove that matches with described flange.
Has the endosome of the barrel shape of inclined plane drain hole according to the inboard that comprises provided by the invention; Be installed in second screen pack that described endosome top, central portion have guide rod and hook; There is through hole inside, is connected to the conduit of described second screen pack; Top has the carriage release lever that hook, lower end have screw hole, are positioned at described conduit inboard; Upper and lower end is connected respectively to the elastomeric element of the hook of described second screen pack and carriage release lever; Be fixedly connected on the elastic component of described carriage release lever lower end.
Have following advantage according to the sealed drainage plant that flows backwards that prevents provided by the invention:
When the present invention is arranged on the outfall of sewage in the mouth of a river under the general family or the urban infrastructure and rainwater, can prevent the refluence of sewage and peculiar smell, successfully effluent sewerage; Prevent the situation of immersion under the building spot, prevent to make the city on low ground or area immersion along the river because of refluence; When being arranged on the outfall of tank, the refluence of draining successfully and blocking-up peculiar smell makes indoor environment clean more; When being arranged on the outfall of freezer, the inner liquid that produces of freezer is successfully discharged, and can seal outfall after discharging end, prevent that the cold air outflow and the outside hot gas of cool house internal from flowing into cool house internal, keep temperature is set, prevent unnecessary heat waste.
Description of drawings:
The present invention is described in detail below in conjunction with embodiment that accompanying drawing provides:
Fig. 1 is the decomposing schematic representation according to sealed drainage plant provided by the invention;
Fig. 2 is the assembled state schematic diagram according to sealed drainage plant provided by the invention;
Fig. 3 is the assembled state sectional view according to sealed drainage plant provided by the invention;
Portion's view of switch mouth opening when Fig. 4 is arranged on sewer for the present invention;
Portion's view of switch mouth closed condition when Fig. 5 is arranged on sewer for the present invention;
Sectional view when Fig. 6 is arranged on the freezer outfall for the present invention;
Fig. 7 is the sectional view of the sealed drainage plant of the another kind of embodiment of the present invention;
Fig. 8 is the sectional view of the sealed drainage plant of another embodiment of the present invention;
Fig. 9 is the sectional view of the sealed drainage plant of another embodiment of the present invention;
Figure 10 is the sectional view of the sealed drainage plant of the another kind of examples of implementation of the present invention;
Figure 11 is the sectional view of the sealed drainage plant of another examples of implementation of the present invention;
Figure 12 is the relevant sectional view that prevents the drainage plant that flows backwards in the prior art.
Main symbol description among the figure:
10: main body 20: endosome
30,40: the first, the second screen pack 50: conduit
60: fixed part 70: carriage release lever
80: elastic component 90: telescoping tube
92: following water guide member 94: floating part
S: elastomeric element
The specific embodiment:
Fig. 1 is the decomposing schematic representation according to sealed drainage plant provided by the invention; Fig. 2 is the assembled state schematic diagram according to sealed drainage plant provided by the invention; Fig. 3 is for according to the assembled state sectional view that prevents the drainage plant that flows backwards provided by the invention.
Referring to Fig. 1 to 3, according to the sealed drainage plant that flows backwards of preventing provided by the invention, comprise the main body 10 of a drum shape, the inner top side of described main body 10 has ring-shaped step 12, the first screen packs 30 and is installed on the described ring-shaped step 12; The bottom of described ring-shaped step 12 forms meshing step 14 and is connected to the holddown groove 16 of described meshing step 14, and the endosome 20 of drum shape is housed on the described meshing step 14, is provided with packing ring 18 between described meshing step 14 and the described endosome 20.
The diameter that described first screen pack 30 forms with the described ring-shaped step 12 of main body 10 inside upper part of described drum shape is the ectosome 32 of the hollow cylinder of benchmark, and the top of described ectosome 32 is formed with a plurality of drain holes 34 of draining smoothly.
The diameter that described second screen pack 40 forms with the endosome 20 inboard short steps 22 of described drum shape is the ectosome 42 of benchmark, and the top of described ectosome 42 is formed with a plurality of drain holes 44, and described drain hole 44 is used to discharge the sewage by first screen pack 30; The central portion of described ectosome 42 projects upwards, and forms through hole 48 and the guide rod 46 that conduit 50 can be installed at central portion.
Described conduit 50 is placed in the outside of the guide rod 46 of described second screen pack 40, its inboard through hole 52 that forms, and the inside lower end of described through hole 52 is formed with flange 54, and the lower end edge circumferencial direction of described flange 54 forms meshing groove 56.
On the short step that the through hole 48 of the guide rod 46 of described second screen pack 40 forms fixed part 60 is installed, the lower end of described fixed part 60 is connected with the side of the elastomeric element S of described conduit 50 inboards, and the lower end formation of described elastomeric element S links up with 72.
Be positioned at the outstanding laterally flange that hangs over conduit 50 54 of a part of described conduit 50 inboards, lower end, be used to prevent that lug boss 71 breaks away from the outside; The upper end of described lug boss 71 is connected to the hook 72 of elastomeric element S one end of described conduit 50 inboards, and the lower end forms the carriage release lever 70 with screw hole 74.
In the meshing groove 56 of described conduit 50 packing ring 58 is housed, described packing ring 58 is enclosed in the periphery of described carriage release lever 70.
One elastic component 80 is fixed on the described screw hole 74 by screw 86, and its central portion forms through hole 82, and is held on the short stage portion 75 of described carriage release lever 70 lower ends.
Because described elastic component 80 is connected to the short stage portion 75 of described carriage release lever 70 lower ends, described elastomeric element S is used to seal the bottom discharge hole 24 of described endosome 20, elastic component 80 forms and the identical inclined plane 84, inclined plane 26 of drain hole 24, thereby to seal will be more firm.
Of the present invention prevent to flow backwards with drainage plant and be limited to the underground mouth of a river down is installed, the tank in kitchen and other relate to inflows, flow out water and oily place can be installed and used; The outfall that can also be installed in freezer can successfully be discharged liquid, prevents that the cold air in the freezer from flowing out.
As mentioned above, main body 10 of the present invention will be installed in sewer, play living water use, the stench effect by reverse flow in drainage that prevents.
Fig. 4 is the sectional view according to the switch open state of sealed drainage plant provided by the invention.The sewage that contains other materials flow into described endosome 20 by described first, second screen pack 30,40, and described elastic component 80 descends because of the pressure of draining.
When described elastic component 80 descends, the carriage release lever 70 of its connection too, the elongation owing to elastomeric element S in through hole 52 scopes of described conduit 50 descends, the while drain hole 24 of described endosome 20 is in opening.
When the drain hole 24 of described endosome 20 was in opening, the following water that flow into endosome 20 by first, second screen pack 30,40 freely was discharged to sewer by drain hole 24.This moment, described elastomeric element S was connected to each other fixed part 60 and carriage release lever 70, produced the strength of pulling carriage release lever 70.Make living water use and industrial water use waltz through drainage plant according to such action, from mouth of a river discharge down.
On the other hand, when the flowing water that flow into described endosome 20 stopped, endosome 20 was in the state that does not have sewage, and the pressure on elastic component 80 tops can reduce.At this moment, along with reducing of elastic component 80 upward pressures, because of the elasticity of elastomeric element S, as shown in Figure 5, described carriage release lever 70 and elastic component 80 return to the state of the initial drain hole of blocking described endosome 20 24.
Promptly when described elastomeric element S restPosed, the carriage release lever 70 that is connected to described elastomeric element S rose in the through hole 52 of conduit 50, and the elastic component 80 that is fixed on described carriage release lever 70 bottoms rises simultaneously.At this moment, as shown in Figure 5, described elastic component 80 will cooperate with the inclined plane 26 of the drain hole 24 of described endosome 20, and keep sealing, so can prevent the refluence of sewage and peculiar smell.
When described elastic component 80 and drain hole 24 were in sealing state, following water that flows backwards by the mouth of a river down or peculiar smell were near elastic component 80 time, and following water or peculiar smell promote elastic component 80 upwards, and described elastic component 80 and drain hole 24 more closely are combined together.
Therefore, the motive force of following water or peculiar smell can make the compactness of blocking drain hole 24 better, the successfully refluence of water and peculiar smell under the blocking-up.
The packing ring 58 that is connected conduit 50 lower ends is wrapped in the periphery of described carriage release lever 70, and double swerve when preventing that described carriage release lever 70 from moving up and down prevents the intrusion of the foreign matter that Xia Shui and Xia Shui comprise.
Fig. 6 is installed in the state of the outfall of freezer for sealed drainage plant of the present invention, and drainage plant is installed in the outfall of freezer, makes freezer inside successfully be discharged to the outside because of variations in temperature and the liquid of generation such as sweeping by outfall.After liquid in the freezer is discharged, stop the inner cold air of freezer to flow into by outlet opening by outlet opening outflow and outside hot air.Make the temperature in the freezer keep constant, prevent that food and other food in the freezer from going bad because of variations in temperature.
Fig. 7 is another kind of embodiment of the present invention, and the structure of conduit 50 inboards is different with the foregoing description among this embodiment.
The following water that foreign matter is arranged by first, second screen pack 30,40 flow into endosome 20, descends because of the pressure of draining makes elastic component 80.When elastic component 80 descends, connect and the carriage release lever 70 that is fixed to elastic component 80 too, the elongation owing to elastomeric element S in through hole 52 scopes of conduit 50 descends, the drain hole 24 of endosome 20 is in opening.
When the drain hole 24 of described endosome 20 was in opening, the following water that flow into described endosome 20 by first, second screen pack 30,40 can be discharged smoothly by drain hole 24.
After water flows out down in the described endosome 20, will be in the state that does not descend water in the endosome 20, the pressure on elastic component 80 tops can reduce.When the pressure on the elastic component 80 reduced, because of the restoring force of elastomeric element S, carriage release lever 70 and elastic component 80 returned to the state of the drain hole 24 of blocking endosome 20.
As shown in Figure 5, will seal the inclined plane 26 of described drain hole 24 after elastic component 80 rises, and keep compactness, prevent down the refluence of water and peculiar smell.
Fig. 8 is another embodiment of the present invention, telescoping tube 90 is housed between the lower end of the lower end of described conduit 50 and described carriage release lever 70, described telescoping tube 90 covers the exposed part of carriage release lever 70, and when carriage release lever 70 moved up and down, telescoping tube 90 also moved together with described carriage release lever 70.
When conduit 50 moved up and down, water or foreign matter entered in the through hole 52 of conduit 50 under described telescoping tube 90 can stop, and prevented that elastomeric element S is corroded, and carriage release lever 70 is successfully moved up and down.
Fig. 9 another embodiment of the present invention, the bottom is in open state, and described conduit 50 is fixedlyed connected with the guide rod 46 of second screen pack 40 with the following water guide member 92 that is placed in described conduit 50 outsides.The following water that enters by the first, the second screen pack 30,40, discord conduit 50, the carriage release lever 70 that is connected with conduit 50 contact, and are directed to the following water guide member 92 of drain hole 24 by setting, and the following water that flow into endosome 20 is discharged rapidly from drain hole 24.
Figure 10 is another kind of embodiment of the present invention, and the packing ring 28 on the inclined plane 26 that covers the described endosome 20 inboard drain holes 24 that form is set.
Following water enters described endosome 20 by first, second screen pack 30,40, and described elastic component 80 descends, and the drain hole 24 of endosome 20 is in open state, and following water is discharged by drain hole 24.
After above-mentioned draining finished, elastic component 80 rose and when blocking described drain hole 24, the inclined plane of described elastic component 80 closely contact with packing ring 28, can close drain hole 24 more securely, the refluence of water and peculiar smell under the blocking-up.
Figure 11 another embodiment of the present invention is provided with the floating part 94 with buoyancy in the bottom of elastic component 80, the bottom surface of carriage release lever 70 screw 86 fixedly elastic component 80 and floating part 94.Under the state of elastic component 80 and drain hole 24 sealings, following water and peculiar smell are by reverse flow in drainage during near the bottom surface of floating part 94, following water and peculiar smell promote floating part 94 upwards, and elastic component 80 and described drain hole 24 are more closely fit together, and sealing performance is better.
Only for explanation the present invention's usefulness, the those of ordinary skill in relevant technologies field also can be made various distortion or conversion to the foregoing description under the situation that does not break away from the spirit and scope of the present invention, and protection scope of the present invention is limited by its claim.
Claims (9)
1. sealed drainage plant that prevents to flow backwards comprises the have drain hole barrel-shaped endosome (20) of (24); Be installed in second screen pack (40) on described endosome (20) top, the central portion lower end of described second screen pack (40) has hook; Be fixedly installed on the conduit (50) on described second screen pack (40), described conduit (50) inside is provided with through hole; Be located at the inner carriage release lever (70) of conduit (50), described carriage release lever (70) upper end has hook; Elastomeric element (S), its upper/lower terminal are connected respectively to the hook of described second screen pack (40) and described carriage release lever (70); The lower end of described carriage release lever (70) is fixedly connected with elastic component (80), it is characterized in that: the lateral surface of described endosome (20) has flange, and the inboard of a tub-shaped body (10) has the holddown groove that matches with described flange.
2. the sealed drainage plant that flows backwards of preventing according to claim 1, it is characterized in that: the guide rod of described second screen pack (40) inserts in the described through hole, and be formed with the through hole of short step, one fixed part (60) is installed in this through hole, and the lower end of described fixed part (60) forms the hook that is connected with elastomeric element (S).
3. a sealed drainage plant that prevents to flow backwards comprises the barrel-shaped endosome (20) with drain hole; Be installed in second screen pack (40) on described endosome (20) top, the central portion lower end of described second screen pack (40) has guide rod and hook; Be fixed in the conduit (50) on described second screen pack, described conduit (50) inside is provided with through hole, and the lower end of through hole is provided with flange; Be located at the carriage release lever (70) in the described conduit (50), described carriage release lever (70) upper end has flange and hook; Be arranged at the hook of described second screen pack (40) and the elastomeric element (S) between the carriage release lever (70), the lower end of described carriage release lever (70) is fixedly connected with elastic component (80), it is characterized in that: the lateral surface of described endosome (20) has flange, and the inboard of a tub-shaped body (10) has the holddown groove that matches with described flange.
4. according to claim 1 or the 3 described sealed drainage plant that flow backwards of preventing, it is characterized in that: described main body (10) inside upper part has ring-shaped step, and first screen pack (30) is installed on the described ring-shaped step.
5. according to claim 1 or the 3 described sealed drainage plant that flow backwards of preventing, it is characterized in that: the bottom surface of described conduit (50) has meshing groove, is provided with a packing ring in the described meshing groove, and described packing ring is wrapped in the periphery of described carriage release lever (70).
6. according to claim 1 or the 3 described sealed drainage plant that flow backwards of preventing, it is characterized in that: be provided with telescoping tube between the lower end of the lower end of described conduit (50) and described carriage release lever (70).
7. according to claim 1 or the 3 described sealed drainage plant that flow backwards of preventing, it is characterized in that: the lower end of described second screen pack is provided with the guiding following water guide member (92) that flows of water down.
8. according to claim 1 or the 3 described sealed drainage plant that flow backwards of preventing, it is characterized in that: the packing ring that is provided with the inclined plane (26) of the drain hole (24) that covers described endosome (20).
9. according to claim 1 or the 3 described sealed drainage plant that flow backwards of preventing, it is characterized in that: the bottom of described elastic component (80) is provided with the floating part with buoyancy.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040012206A KR100643345B1 (en) | 2004-01-10 | 2004-02-24 | Preventing leaking out , the device which discharge the sewage |
| KR1020040012206 | 2004-02-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1661167A CN1661167A (en) | 2005-08-31 |
| CN100362176C true CN100362176C (en) | 2008-01-16 |
Family
ID=36094838
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200497285U Expired - Fee Related CN2761711Y (en) | 2004-02-24 | 2004-04-28 | Sealing type drain equipment capable of preventing back flow |
| CNB2004100425506A Expired - Fee Related CN100362176C (en) | 2004-02-24 | 2004-05-21 | Sealed drainage appts. preventing counterflow |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200497285U Expired - Fee Related CN2761711Y (en) | 2004-02-24 | 2004-04-28 | Sealing type drain equipment capable of preventing back flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN2761711Y (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2534002T3 (en) * | 2012-01-30 | 2015-04-16 | Dannrup, Neils | Device and method to filter stormwater |
| CN102852209A (en) * | 2012-09-28 | 2013-01-02 | 刘洪� | Anti-backflow device for sewage line |
| CN103352856B (en) * | 2013-06-17 | 2016-06-29 | 宁波新邦工具有限公司 | A kind of immersible pump being provided with energy-conservation flow-increasing device |
| CN103787432B (en) * | 2014-01-24 | 2015-09-23 | 王振刚 | Portable water purification kit |
| CN111395498B (en) * | 2020-03-23 | 2021-02-12 | 江南大学 | Detachable floor drain device |
| CN114575362B (en) * | 2022-04-06 | 2023-05-05 | 衢州学院 | Efficient water suction and drainage device for slope rock soil and application method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2105526U (en) * | 1991-04-30 | 1992-05-27 | 黄绍义 | Non-return valve of waste water |
| JPH0913462A (en) * | 1995-06-30 | 1997-01-14 | Sekisui Chem Co Ltd | Deodorizing device of drain port |
| JP2000328625A (en) * | 1999-05-24 | 2000-11-28 | Sometani Apart:Kk | Drain trap |
| CN2483443Y (en) * | 2001-06-08 | 2002-03-27 | 权赫荣 | Dry-sealing odour seal |
| CN1378019A (en) * | 2001-04-05 | 2002-11-06 | 姜雪岩 | Spring type floor drain check valve |
-
2004
- 2004-04-28 CN CNU2004200497285U patent/CN2761711Y/en not_active Expired - Fee Related
- 2004-05-21 CN CNB2004100425506A patent/CN100362176C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2105526U (en) * | 1991-04-30 | 1992-05-27 | 黄绍义 | Non-return valve of waste water |
| JPH0913462A (en) * | 1995-06-30 | 1997-01-14 | Sekisui Chem Co Ltd | Deodorizing device of drain port |
| JP2000328625A (en) * | 1999-05-24 | 2000-11-28 | Sometani Apart:Kk | Drain trap |
| CN1378019A (en) * | 2001-04-05 | 2002-11-06 | 姜雪岩 | Spring type floor drain check valve |
| CN2483443Y (en) * | 2001-06-08 | 2002-03-27 | 权赫荣 | Dry-sealing odour seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1661167A (en) | 2005-08-31 |
| CN2761711Y (en) | 2006-03-01 |
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