CN118563903A - A floor drain device and control method thereof - Google Patents
A floor drain device and control method thereof Download PDFInfo
- Publication number
- CN118563903A CN118563903A CN202410624441.2A CN202410624441A CN118563903A CN 118563903 A CN118563903 A CN 118563903A CN 202410624441 A CN202410624441 A CN 202410624441A CN 118563903 A CN118563903 A CN 118563903A
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- Prior art keywords
- floor drain
- coil
- ground leakage
- sewage
- opening
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0407—Floor drains for indoor use
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
本发明公开了一种地漏装置及其控制方法，主要涉及家居生活用品领域；包括地漏主体，所述地漏主体内的底部设有向上延伸的地漏口，所述地漏口与下水管连接，所述地漏口的上侧设有地漏封板，所述地漏封板的底部沿着地漏封板的周向均匀设有若干个连杆，所述连杆的底端设有浮子，所述地漏主体内的上部设有储液箱，所述储液箱用于存储消毒剂和/或除蚊虫剂，所述储液箱的底部设有出口电磁阀，顶部设有加注口密封盖，所述储液箱的上侧设有线圈及线圈芯，所述线圈及线圈芯通过连接杆与地漏封板连接，所述线圈及线圈芯的内侧设有内磁铁体，外侧设有外磁铁体，地漏主体的顶部设有环形滤网；本发明能够防止异味溢出，达到防异味和杀菌灭蚊虫的效果。
The invention discloses a floor drain device and a control method thereof, which mainly relate to the field of household daily necessities; the device comprises a floor drain main body, wherein a floor drain opening extending upward is provided at the bottom of the floor drain main body, the floor drain opening is connected to a sewer pipe, a floor drain sealing plate is provided on the upper side of the floor drain opening, a plurality of connecting rods are evenly provided at the bottom of the floor drain sealing plate along the circumference of the floor drain sealing plate, a float is provided at the bottom end of the connecting rod, a liquid storage tank is provided at the upper part of the floor drain main body, the liquid storage tank is used to store disinfectant and/or mosquito repellent, an outlet solenoid valve is provided at the bottom of the liquid storage tank, a filling port sealing cover is provided at the top, a coil and a coil core are provided on the upper side of the liquid storage tank, the coil and the coil core are connected to the floor drain sealing plate through a connecting rod, an inner magnet is provided on the inner side of the coil and the coil core, an outer magnet is provided on the outer side, and an annular filter is provided on the top of the floor drain main body; the invention can prevent odor from overflowing, and achieve the effects of preventing odor and killing mosquitoes and insects.
Description
Technical Field
The invention relates to the field of household articles, in particular to a floor drain device and a control method thereof.
Background
The floor drain is a common household living problem, and because the sewer pipe is dark and moist for a long time, the sewer pipe is a pipeline for discharging dirt, and the water seal is difficult to 'seal' the peculiar smell, and finally the peculiar smell spreads indoors, so that the health of family members is greatly threatened. At present, the anti-odor floor drain on the market is quite various, more traditional water seals are used for deodorization, the existing novel self-sealing deodorizing floor drain is more and more popular with people, but is only capable of preventing odor, has a single function, is extremely easy to generate bacteria and mosquitoes at the actual sewer pipe and the floor drain, and brings hidden danger to living environment of people.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a floor drain device and a control method thereof, which can prevent peculiar smell from overflowing and achieve the effects of preventing peculiar smell, sterilizing and killing mosquitoes.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
The utility model provides a floor drain device, includes the floor drain main part, the bottom in the floor drain main part is equipped with the ground leakage mouth that upwards extends, floor drain mouth and sewer pipe connection, the upside of ground leakage mouth is equipped with the floor drain shrouding, the bottom of floor drain shrouding evenly is equipped with a plurality of connecting rod along the circumference of floor drain shrouding, the bottom of connecting rod is equipped with the float, the connecting rod is located the floor drain mouth outside, the upper portion in the floor drain main part is equipped with the liquid reserve tank, the liquid reserve tank is used for storing disinfectant and/or removes the mosquito agent, the bottom of liquid reserve tank is equipped with outlet solenoid valve, and the top is equipped with the filler seal lid, the upside of liquid reserve tank is equipped with coil and coil core, coil and coil core pass through the connecting rod and are connected with the floor drain shrouding, the inboard of coil and coil core is equipped with interior magnet, and the outside is equipped with outer magnet, interior magnet is fixed in the floor drain main part, just coil and coil core can slide from top to bottom in the floor drain main part, the top of floor drain main part is equipped with annular filter screen.
Preferably, a mosquito-attracting lamp is arranged at the upper part in the floor drain main body.
Preferably, the floor drain device further comprises a control unit, a function switch and a battery.
Preferably, the number of the connecting rods is three.
The control method of the floor drain device comprises the following steps:
firstly, a filling port sealing cover is opened, a certain amount of disinfectant and/or mosquito-killing agent is filled into a liquid storage tank, and a functional switch is opened:
1) If the floor drain has no water, the floor drain sealing plate seals the floor drain opening under the dead weight and the weight of the coil, the coil core and the connecting rod, so that the odor of the sewer pipe is prevented from overflowing from the floor drain opening, and meanwhile, harmful mosquitoes are prevented from entering a room from the sewer pipe through the floor drain opening;
2) If sewage flows into the ground leakage port through the annular filter screen, the float overcomes the dead weight of the floor drain sealing plate and the weight of the coil, the coil core and the connecting rod through the connecting rod under the action of the buoyancy force along with the gradual increase of the sewage, so that the floor drain sealing plate is lifted to be separated from the floor drain port, and when the sewage is higher than the floor drain port, the sewage flows into the sewer pipe through the floor drain port;
3) Under the action of sewage buoyancy of different flow rates, the dead weight of the floor drain sealing plate, the weight of the coil, the coil core and the connecting rod enable the floor drain sealing plate to continuously rise and descend to repeatedly move, so that the coil and the coil core relatively do oscillating up-and-down piston type movement between the outer magnet body and the inner magnet body, and electric energy generated by magnetic induction lines is continuously cut;
4) When the sewage no longer flows to the ground leakage port, the sewage at the ground leakage port is at the same height as the ground leakage port, and no longer flows to the sewer pipe, at the moment, the buoyancy of the sewage to the floater cannot overcome the dead weight of the ground leakage sealing plate and the weight of the coil, the coil core and the connecting rod, so that the ground leakage port is sealed by the ground leakage sealing plate in a descending way;
5) At the moment, no sewage flows to the ground leakage port, no electric energy is transmitted to the control unit, and the control unit controls the opening of the outlet electromagnetic valve after obtaining a signal, so that disinfectant and/or mosquito-killing agent is injected into the sewage at the leakage port through the outlet;
6) If sewage flows to the ground leakage through the annular filter screen, repeating the processes of 2), 3), 4) and 5);
7) If no sewage flows to the ground leakage place for a long time, the sewage can be evaporated along with the time increment, so that the ground leakage opening is sealed under the dead weight of the ground leakage sealing plate and the weight of the coil, the coil core and the connecting rod;
8) When the function switch is turned on, the control unit controls the mosquito-attracting lamp to continuously flash to be lightened, and attracts harmful mosquitoes to fly to the place where the floor drain leaks, and the harmful mosquitoes are killed by using a disinfectant or a mosquito-killing agent contained in sewage at the place where the floor drain leaks, so that discomfort caused by indoor mosquito harassment is reduced;
9) If the functional switch is not turned on, the floor drain device can repeat the processes of 1), 2) and 4), and the effects of preventing harmful peculiar smell, mosquitoes and bacteria of the floor drain are effectively ensured.
Compared with the prior art, the invention has the beneficial effects that:
The invention has simple structure and convenient installation, and simultaneously does not change the function of the original water seal, a certain amount of disinfectant (or mosquito repellent) is added before the installation, and the function switch is turned on; if the floor drain is free of water, the sealing plate of the floor drain seals the ground leakage opening after installation, so that the odor is prevented from overflowing; if sewage flows to the ground leakage port, the floor drain sealing plate is lifted along with the gradual increase of the sewage quantity, the sewage flows into the sewer pipe from the floor drain port, and the floor drain sealing plate is lifted and lowered repeatedly to generate power due to the change of the sewage quantity, so that the flickering time of the trap lamp is prolonged (the disinfectant or the mosquito killing agent contained in the sewage at the ground leakage port is utilized to kill mosquitoes); when the sewage level and the floor drain opening are not flowed to the sewer pipe any more, the floor drain sealing plate descends to seal the floor drain opening, and at the moment, the floor drain device can inject a disinfectant (or deodorant) into the sewage at the floor drain opening; the effects of water seal, mechanical seal, insect attraction and disinfectant (or deodorant) injection are achieved, and the effects of preventing peculiar smell, sterilizing and killing insects are achieved, so that a safer living environment can be provided for people.
Drawings
FIG. 1 is a schematic view of the floor drain of the present invention;
fig. 2 is an electrical schematic diagram of the floor drain of the present invention.
The reference numbers in the drawings: 1. a floor drain main body; 2. a ground leakage port; 3. floor drain sealing plates; 4. a connecting rod; 5. a float; 6. a liquid storage tank; 61. an outlet solenoid valve; 7. a coil and a coil core; 8. a connecting rod; 9. an inner magnet body; 10. an outer magnet body; 11. an annular filter screen; 12. mosquito-attracting lamp.
Detailed Description
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.
Example 1: the invention discloses a floor drain device, which comprises a floor drain main body 1, wherein a floor drain opening 2 extending upwards is arranged at the bottom in the floor drain main body 1, the bottom end of the floor drain opening 2 is communicated with the outside and is used for being connected with a sewer pipe, a floor drain sealing plate 3 is arranged on the upper side of the floor drain opening 2, and the floor drain sealing plate 3 is used for sealing the floor drain opening 2. The bottom of floor drain shrouding 3 evenly is equipped with a plurality of connecting rod 4 along the circumference of floor drain shrouding 3, the bottom of connecting rod 4 is equipped with float 5, connecting rod 4 is located the ground leakage port 2 outside, utilizes the buoyancy of float 5 to promote floor drain shrouding 3 to rise, and is preferred, the quantity of connecting rod 4 is three, separates 120 each other.
The upper portion is equipped with liquid storage tank 6 in the floor drain main part 1, liquid storage tank 6 is used for storing disinfectant and/or mosquito repellent agent, and the bottom of liquid storage tank 6 is equipped with export solenoid valve 61, and the top is equipped with the filler seal lid, and export solenoid valve 61 is controlled by the control unit for disinfectant and/or mosquito repellent agent in the control liquid storage tank 6 is poured into in the sewage of floor drain department.
The upper side of the liquid storage tank 6 is provided with a power generation device, the power generation device is used for charging a battery, an output circuit of the power generation device is connected with the battery through a control unit, the power generation device comprises a coil and a coil core 7, the coil and the coil core 7 are connected with a floor drain sealing plate 3 through a connecting rod 8, the inner sides of the coil and the coil core 7 are provided with an inner magnet body 9, the outer side of the coil and the coil core 7 is provided with an outer magnet body 10, the inner magnet body 9 is fixed in the floor drain main body 1, the coil and the coil core 7 can slide up and down in the floor drain main body 1, the outer magnet body 10 and the inner magnet body 9 are respectively composed of four pairs of magnets and a fixing device, and an outer cylinder and an inner cylinder are manufactured by the fixing device; the coil is arranged between the outer magnet body and the inner magnet body, is wound around a coil core in a circumferential direction, has an overall appearance similar to a piston structure, and is connected with the floor drain sealing plate 3 through a connecting rod 8; when sewage flows to the ground leakage, the sewage with unstable flow velocity can make the three floats 5 vibrate up and down, so that the ground leakage sealing plate 3 drives the coil core and the coil to move relatively in a piston mode, and the magnetic induction lines are cut to generate electric energy during movement.
The top of the floor drain main body 1 is provided with an annular filter screen 11, the annular filter screen 11 is used for filtering larger impurities in the floor drain sewage, the shape of the annular filter screen is round, the surface of the annular filter screen is provided with strip-shaped holes, and the sewage enters the floor drain through the strip-shaped holes of the annular filter screen 11; the annular filter screen 11 can be fixed with the screw thread of the upper end of the floor drain main body 1 through the screw thread in a matching way, and is arranged at the upper position of the floor drain main body 1; the round edge of the device is inlaid and clamped with the ground at the ground leakage.
Preferably, a mosquito-attracting lamp 12 is provided at the upper part in the floor drain body 1, and the mosquito-attracting lamp 12 is used for attracting mosquitoes and the like and is installed at the upper part in the floor drain body 1.
Preferably, the floor drain device further comprises a control unit, a function switch and a battery.
The battery is used for supplying power to the mosquito-attracting lamp, is connected with the power generation device through the control unit, and is arranged at the upper part in the floor drain main body 1.
The control unit is used for controlling the floor drain device and is arranged in the floor drain main body 1.
The functional switch is used for controlling the floor drain device circuit, can be used or closed, and is arranged on the floor drain main body 1.
Example 2: the invention discloses a control method of a floor drain device, which comprises the following steps:
when the floor drain is used, before installation, the filling port sealing cover is firstly opened, a certain amount of disinfectant and/or mosquito repellent agent is filled into the liquid storage tank 6, and the functional switch is opened:
1) If no water exists at the floor drain, the floor drain sealing plate 3 seals the floor drain opening 2 under the dead weight and the weight of the coil, the coil core 7 and the connecting rod 8 after the floor drain is installed, so that the odor of the sewer pipe is prevented from overflowing from the floor drain opening 2, and meanwhile, harmful mosquitoes are prevented from entering a room from the sewer pipe through the floor drain opening, so that the pollution of indoor air and the appearance of the harmful mosquitoes are caused.
2) If sewage flows into the ground leakage opening through the strip-shaped holes of the annular filter screen 11, as the sewage quantity gradually increases, the three floats 5 lift the ground leakage sealing plate 3 to be separated from the ground leakage opening 2 through the connecting rod 4 under the action of buoyancy force to overcome the dead weight of the ground leakage sealing plate 3 and the weight of the coil and the coil core 7 and the connecting rod 8, and when the sewage is higher than the ground leakage opening 2, the sewage flows into the sewer pipe through the ground leakage opening 2.
3) Because the flow of sewage flowing to the ground leakage port 2 through the strip-shaped holes of the annular filter screen 11 is continuously changed, under the action of the buoyancy of sewage with different flow rates, the three floats 5 enable the three connecting rods 4 to overcome the dead weight of the floor drain sealing plate 3 and the weight of the coil, the coil core 7 and the connecting rod 8 to enable the floor drain sealing plate 3 to continuously lift and descend and repeatedly move, so that the coil, the coil core 7 and the floor drain sealing plate 3 are in oscillating up-down piston movement relative to the outer magnet body 10 and the inner magnet body 9 under the action of the connecting rod 8, magnetic induction lines are continuously cut, electric energy generated by the power generation device is firstly transmitted to the control unit, the control unit is then output to the battery for charging, and the flashing time of the mosquito induction lamp 12 is prolonged.
4) When sewage no longer flows to the ground leakage opening 2, so that the sewage at the ground leakage opening 2 and the ground leakage opening 2 are at the same time, the sewage no longer flows to the sewer pipe, at the moment, the buoyancy of the sewage to the three floats 5 can not overcome the dead weight of the ground leakage sealing plate 3 and the weight of the coil and the coil core 7 on the connecting rod 8, so that the ground leakage opening 2 is sealed by the ground leakage sealing plate 3, and thus, the leakage opening 2 is sealed by the water seal and the ground leakage sealing plate, the bad smell of the sewer pipe can be better prevented from overflowing from the ground leakage opening, and meanwhile, harmful mosquitoes can be prevented from entering a room from the sewer pipe through the ground leakage opening, so that the pollution of indoor air and the appearance of the harmful mosquitoes are caused.
5) At this time, no sewage flows to the ground leakage port 2, no electric energy is transmitted to the control unit by the power generation device, and the control unit controls the outlet electromagnetic valve 61 to be opened by current for a certain time after obtaining signals, so that disinfectant and/or mosquito-repellent agent is injected into the sewage at the leakage port through the outlet; thus, the disinfectant (or mosquito repellent) can remove the peculiar smell of the sewage and kill harmful bacteria and mosquitoes in the sewage at the floor drain.
6) If sewage flows to the ground leakage through the strip-shaped holes of the annular filter screen, the floor drain device can repeat the processes of 2), 3), 4) and 5), so that the effects of preventing harmful peculiar smell, mosquitoes and bacteria of the floor drain are effectively ensured.
7) If no sewage flows to the ground leakage place for a long time, the sewage can evaporate along with the growth of time, so that the ground leakage port 2 is sealed under the dead weight of the floor drain sealing plate 3 and the weight of the coil and the coil core 7 and the connecting rod 8, the odor of the sewer pipe is prevented from overflowing from the ground leakage port 2, and meanwhile, harmful mosquitoes can be prevented from entering a room from the sewer pipe through the ground leakage port 2, so that the pollution of indoor air and the appearance of the harmful mosquitoes are caused.
8) When the function switch is turned on, the control unit controls the mosquito inducing lamp 12 to continuously flash to be lightened, and the harmful mosquitoes are induced to fly to the ground leakage, so that the disinfectant or the mosquito removing agent contained in the sewage at the ground leakage is utilized to kill the harmful mosquitoes, and the discomfort caused by the disturbance of indoor mosquitoes is reduced.
9) If the functional switch is not turned on, the floor drain device can repeat the processes of 1), 2) and 4), and the effects of preventing harmful peculiar smell, mosquitoes and bacteria of the floor drain are effectively ensured.
Claims (5)
1. The floor drain device comprises a floor drain main body (1), and is characterized in that: the floor drain is characterized in that an upwardly extending floor drain opening (2) is formed in the bottom of the floor drain main body (1), the floor drain opening (2) is connected with a sewer pipe, a floor drain sealing plate (3) is arranged on the upper side of the floor drain opening (2), a plurality of connecting rods (4) are uniformly arranged at the bottom of the floor drain sealing plate (3) along the circumference of the floor drain sealing plate (3), a floater (5) is arranged at the bottom of the connecting rods (4), the connecting rods (4) are located the outer side of the floor drain opening (2), a liquid storage tank (6) is arranged on the upper portion of the floor drain main body (1), the liquid storage tank (6) is used for storing disinfectant and/or mosquito repellent agent, an outlet electromagnetic valve (61) is arranged at the bottom of the liquid storage tank (6), a filling opening sealing cover is arranged at the top of the liquid storage tank (6), a coil and a coil core (7) are arranged on the upper side of the liquid storage tank (6), the coil and the coil core (7) are connected with the floor drain sealing plate (3) through connecting rods (8), an inner magnet (9) is arranged on the inner side of the coil and the coil core (7), an outer magnet (10) is arranged on the outer side of the floor drain main body (1), the inner magnet (9) is fixed in the floor drain main body (1), and the coil core (1) can slide in the water drain main body (1).
2. Floor drain device according to claim 1, characterized in that: the upper part in the floor drain main body (1) is provided with a mosquito-attracting lamp (12).
3. Floor drain device according to claim 1, characterized in that: the floor drain device also comprises a control unit, a functional switch and a battery.
4. Floor drain device according to claim 1, characterized in that: the number of the connecting rods (4) is three.
5. Floor drain control method according to any of the claims 1-4, comprising:
firstly, a filling port sealing cover is opened, a certain amount of disinfectant and/or mosquito-killing agent is filled into a liquid storage tank (6), and a function switch is opened:
1) If the floor drain is free of water, the floor drain sealing plate (3) seals the floor drain opening (2) under the dead weight and the weight of the coil, the coil core (7) and the connecting rod (8), so that the odor of the sewer pipe is prevented from overflowing from the floor drain opening (2), and meanwhile, harmful mosquitoes are prevented from entering a room through the floor drain opening (2) from the sewer pipe;
2) If sewage flows into the ground leakage opening (2) through the annular filter screen (11), the float (5) overcomes the dead weight of the ground leakage closing plate (3) and the weight of the coil, the coil core (7) and the connecting rod (8) through the connecting rod (4) under the action of buoyancy along with the gradual increase of the sewage quantity, so that the ground leakage closing plate (3) is lifted to be separated from the ground leakage opening (2), and when the sewage is higher than the ground leakage opening (2), the sewage flows into a sewer pipe through the ground leakage opening (2);
3) Under the action of sewage buoyancy of different flow rates, the float (5) enables the floor drain sealing plate (3) to continuously lift and descend and repeatedly move under the dead weight of the floor drain sealing plate (3) and the weight of the coil, the coil core (7) and the connecting rod (8), so that the coil and the coil core (7) relatively do oscillating up-and-down piston type movement between the outer magnet body (10) and the inner magnet body (9), and electric energy generated by magnetic induction lines is continuously cut;
4) When sewage no longer flows to the ground leakage opening (2), the sewage at the ground leakage opening (2) and the ground leakage opening (2) are at the same time, the sewage no longer flows to the sewer pipe, and at the moment, the buoyancy of the sewage to the float (5) cannot overcome the dead weight of the ground leakage sealing plate (3) and the weight of the coil, the coil core (7) and the connecting rod (8), so that the ground leakage opening (2) is sealed by the ground leakage sealing plate (3) in a descending way;
5) At the moment, no sewage flows to the ground leakage port (2) and no electric energy is transmitted to the control unit, and the control unit controls the opening of the outlet electromagnetic valve (61) after obtaining a signal, so that disinfectant and/or mosquito-killing agent is injected into the sewage at the leakage port through the outlet;
6) If sewage flows to the ground leakage through the annular filter screen, repeating the processes of 2), 3), 4) and 5);
7) If no sewage flows to the ground leakage place for a long time, the sewage can be evaporated along with the time increase, so that the ground leakage opening (2) is sealed under the dead weight of the ground leakage sealing plate (3) and the weight of the coil and the coil core (7) and the connecting rod (8);
8) When the function switch is turned on, the control unit controls the mosquito inducing lamp (12) to continuously flash to be lightened, and induces harmful mosquitoes to fly to the ground leakage, and the disinfectant or the mosquito removing agent contained in the sewage at the ground leakage is utilized to kill the harmful mosquitoes, so that discomfort caused by the disturbance of indoor mosquitoes is reduced;
9) If the functional switch is not turned on, the floor drain device can repeat the processes of 1), 2) and 4), and the effects of preventing harmful peculiar smell, mosquitoes and bacteria of the floor drain are effectively ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410624441.2A CN118563903A (en) | 2024-05-20 | 2024-05-20 | A floor drain device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410624441.2A CN118563903A (en) | 2024-05-20 | 2024-05-20 | A floor drain device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118563903A true CN118563903A (en) | 2024-08-30 |
Family
ID=92471951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410624441.2A Withdrawn CN118563903A (en) | 2024-05-20 | 2024-05-20 | A floor drain device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118563903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119877677A (en) * | 2025-01-07 | 2025-04-25 | 北京纳米能源与系统研究所 | A self-generating sterilizing floor drain |
-
2024
- 2024-05-20 CN CN202410624441.2A patent/CN118563903A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119877677A (en) * | 2025-01-07 | 2025-04-25 | 北京纳米能源与系统研究所 | A self-generating sterilizing floor drain |
| CN119877677B (en) * | 2025-01-07 | 2025-11-18 | 北京纳米能源与系统研究所 | Floor drain capable of self-generating and sterilizing |
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Application publication date: 20240830 |
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| WW01 | Invention patent application withdrawn after publication |