CN215594298U - Rainwater pipe net cuts dirty protection system - Google Patents
Rainwater pipe net cuts dirty protection system Download PDFInfo
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- CN215594298U CN215594298U CN202121174307.5U CN202121174307U CN215594298U CN 215594298 U CN215594298 U CN 215594298U CN 202121174307 U CN202121174307 U CN 202121174307U CN 215594298 U CN215594298 U CN 215594298U
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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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The application discloses a rainwater pipe network sewage interception protection system which comprises a rainwater pipe network pipeline, a first liquid level meter, an intercepting well, a drainage pipeline, a sewage discharge system and a control system, wherein the first liquid level meter is arranged in the rainwater pipe network pipeline and used for sensing the height of liquid in the rainwater pipe network pipeline; the rainwater pipe network pipeline is communicated with the intercepting well through a drainage pipeline; the sewage discharge system comprises a sewage discharge valve and a sewage discharge pump, wherein the sewage discharge valve is arranged on the inner side wall of the intercepting well and used for controlling the connection and disconnection between the drainage pipeline and the intercepting well; the sewage pump is arranged at the bottom of the intercepting well and used for discharging liquid in the intercepting well; first level gauge, blowdown valve and dredge pump all are connected with control system electricity, through the height of the interior liquid of first level gauge real-time sensing rainwater pipe network pipeline, control system is according to altitude variation control blowdown system to make rainwater pipe network pipeline flow in the vatch basin through drainage pipeline, and through the liquid discharge in the dredge pump will vatch basin, use manpower sparingly and raise the efficiency.
Description
Technical Field
The application relates to the technical field of urban rainwater treatment, in particular to a rainwater pipe network sewage interception protection system.
Background
In urban built-up areas, mixed flow sewage and initial rainwater cannot be completely consumed at the source due to constraints of terrain, urban planning and the like. In order to detect the liquid condition in the rainwater pipe network, the rainwater well cover is often required to be manually opened by people, the height change of the liquid in the rainwater pipe network is identified by human eyes, and because the rainwater pipe network has pollution risks, the personnel danger is easily generated by manual inspection, and the real-time monitoring cannot be realized.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for a rainwater pipe network intercepting protection system to solve the above problems.
An embodiment of the present application provides a rainwater pipe network cuts dirty protection system, includes: a rainwater pipe network pipeline, a first liquid level meter, an intercepting well, a drainage pipeline, a sewage discharge system and a control system,
the first liquid level meter is arranged in the rainwater pipe network pipeline and used for sensing the height of liquid in the rainwater pipe network pipeline;
the rainwater pipe network pipeline is communicated with the intercepting well through the drainage pipeline;
the sewage discharge system comprises a sewage discharge valve and a sewage discharge pump, wherein the sewage discharge valve is arranged on the inner side wall of the intercepting well and used for controlling the connection and disconnection between the drainage pipeline and the intercepting well;
the sewage pump is arranged at the bottom of the intercepting well and is used for discharging liquid in the intercepting well;
the first liquid level meter, the sewage valve and the sewage pump are all electrically connected with the control system.
Furthermore, the intercepting well comprises a well body and a well cover, the sewage discharge valve is arranged on the inner side wall of the well body, the rainwater pipe network pipeline is communicated with the well body through the drainage pipeline, the well cover is arranged on the well body in a covering manner, the sewage discharge pump is arranged at the bottom of the well body, the rainwater pipe network sewage interception protection system further comprises a second liquid level meter,
the second liquid level meter is arranged on one side, facing the well body, of the well cover and is electrically connected with the control system so as to be used for sensing the height of liquid in the intercepting well.
Further, the sewage treatment device also comprises a sewage pipeline which is communicated with the sewage pump through a sewage pipe.
Further, the sewage system also comprises a flow meter which is arranged on the sewage pipe and used for sensing the flow of the liquid transmitted by the sewage pipe.
Further, the first liquid level meter is a drop-in type liquid level meter, and the second liquid level meter is an ultrasonic liquid level meter.
Furthermore, the lateral wall of the well body is provided with a water inlet and a water outlet, the height of the water outlet is larger than that of the water inlet, the drainage pipeline is communicated with the intercepting well through the water inlet, the sewage pump is communicated with the water outlet, and the sewage valve is used for opening or closing the water inlet.
Further, still include at least one rainwater well and third level gauge, the rainwater well with rainwater pipe network pipeline intercommunication, the third level gauge set up in the lateral wall of rainwater well and with control system electricity is connected, in order to be used for the sensing the height of liquid in the rainwater well.
Foretell rainwater pipe network cuts dirty protection system is through the height of first level gauge real time monitoring rainwater pipe network interior liquid, and control system judges whether to flow in liquid in the rainwater pipe network pipeline according to the change of the liquid height in the rainwater pipe network pipeline to liquid drainage to the vatch basin that flows in through drainage pipeline, will vatch basin liquid discharge through the dredge pump. The liquid in the rainwater pipe network pipeline is monitored in real time, labor is saved, and efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a rainwater pipe network intercepting protection system according to an embodiment of the present application.
Fig. 2 is a schematic view illustrating a rainwater well and a rainwater pipe network pipeline provided by an embodiment of the present application.
Description of the main elements
Rainwater pipe network intercepting protection system 100
Rainwater pipe network pipeline 10
First liquid level gauge 20
Intercepting well 30
Dredge pump 52
Well body 31
Well cover 32
Second liquid level gauge 70
Catch basin 90
Third liquid level gauge 91
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1, an embodiment of the present application provides a rainwater pipe network interception prevention system 100 for monitoring a liquid level of a rainwater pipe network in real time and pumping out the liquid in the rainwater pipe network.
Specifically, the rainwater pipe network intercepting and protecting system 100 comprises a rainwater pipe network pipeline 10, a first liquid level meter 20, an intercepting well 30, a drainage pipeline 40, a blowdown system 50 and a control system 60, wherein the first liquid level meter 20 is arranged in the rainwater pipe network pipeline 10, and the first liquid level meter 20 is used for sensing the height of liquid in the rainwater pipe network pipeline 10; the rainwater pipe network pipeline 10 is communicated with the intercepting well 30 through a drainage pipeline 40; the sewage system 50 comprises a sewage valve 51 and a sewage pump 52, the sewage valve 51 is arranged on the inner side wall of the intercepting well 30, and the sewage valve 51 is used for controlling the connection and disconnection between the drainage pipeline 40 and the intercepting well 30; the sewage pump 52 is arranged at the bottom of the intercepting well 30, and the sewage pump 52 is used for discharging liquid in the intercepting well 30; the first liquid level meter 20, the sewage valve 51 and the sewage pump are all electrically connected with the control system 60.
When the rainwater pipe network sewage interception protection system 100 works:
the first liquid level meter 20 senses the height of the liquid in the rainwater pipe network pipeline 10 in real time and transmits the height information to the control system 60;
when the control system 60 determines that the height of the liquid in the rainwater pipe network pipeline 10 is greater than a preset value, the control system 60 controls the blowdown valve 51 to be opened so as to communicate the drainage pipeline 40 with the intercepting well 30, so that the liquid in the rainwater pipe network pipeline 10 flows to the intercepting well 30 through the drainage pipeline 40;
when the control system 60 determines that the height of the liquid in the rainwater pipe network pipeline 10 is less than a preset value, the control system 60 controls the blowdown valve 51 to close so as to disconnect the drainage pipeline 40 and the catch basin 30; after the blowoff valve 51 is opened for a preset time, the control system 60 controls the blowoff pump 52 to be opened to discharge the liquid in the intercepting well 30 to a preset position.
So, through the height of the interior liquid of first level gauge 20 real time monitoring rainwater pipe network pipeline 10, control system 60 judges whether to flow in liquid in rainwater pipe network pipeline 10 according to the change of the liquid height in rainwater pipe network pipeline 10 to through drainage pipeline 40 with liquid drainage to vatch basin 30, discharge liquid in vatch basin 30 through dredge pump 52. So as to realize real-time monitoring of the liquid in the storm water pipe network 10.
It is to be understood that the liquid in the storm water pipe network 10 in the above embodiments may be non-storm water, such as sewage. By draining non-storm water from the storm water pipe network 10.
It is understood that in other embodiments, the waste valve 51 may be disposed at other locations, such as on the drain line 40, so long as control of the connection and disconnection of the drain line 40 is achieved.
In one embodiment, the intercepting well 30 comprises a well body 31 and a well cover 32, the well cover 32 is covered on the well body 31, and the rainwater pipe network pipeline 10 is communicated with the well body 31 through a drainage pipeline 40; the sewage valve 51 is disposed on the inner side wall of the well body 31, the sewage pump 52 is disposed at the bottom of the well body 31, the rainwater pipe network sewage interception protection system 100 further includes a second liquid level meter 70, and the second liquid level meter 70 is disposed at one side of the well lid 32 facing the well body 31 and electrically connected with the control system 60 for sensing the height of the liquid in the intercepting well 30.
Thus, the second level gauge 70 senses the height of the liquid in the intercepting well 30 in real time and transmits the height information to the control system 60, and if the control system 60 determines that the height of the liquid in the intercepting well 30 is greater than a preset value, the control system 60 controls the drainage pump 52 to be turned on to drain the liquid in the intercepting well 30 to a preset position.
In an embodiment of the present application, a water inlet 311 and a water outlet 312 are disposed on a side wall of the well 31, the height of the water outlet 312 is greater than that of the water inlet 311, the drainage pipe 40 is communicated with the intercepting well 30 through the water inlet 311, the sewage pump 52 is communicated with the water outlet 312, and the sewage valve 51 is used for opening or closing the water inlet 311.
In this way, the liquid in the rainwater pipe network pipe 10 enters the well body 31 of the intercepting well 30 through the water inlet 311 via the drainage pipe 40, and the liquid discharged from the dredge pump 52 is discharged out of the intercepting well 30 via the water outlet 312.
In one embodiment of the present application, the rainwater pipe network interception protection system 100 further includes a sewage conduit 80, and the sewage conduit 80 is communicated with the sewage pump 52 through a sewage pipe 81. The sewer line 80 is arranged on the side wall of the well body 31.
Thus, the sewage pump 52 discharges liquid that is conveyed to the sewage pipe 80 via the sewage pipe 81, and flows out to a preset position via the sewage pipe 80.
In one embodiment of the present application, the drainage system 50 further includes a flow meter 53, and the flow meter 53 is disposed on the sewer pipe 81 and electrically connected to the control system 60 for sensing the flow rate of the liquid conveyed by the sewer pipe 81.
It is understood that in other embodiments, a flow meter 53 may be provided on the sewer pipe 80 to sense the flow rate of the liquid conveyed by the sewer pipe 80.
In this embodiment, the first gauge 20 is a drop-in gauge and the second gauge 70 is an ultrasonic gauge.
In an embodiment of the present application, referring to fig. 2, the rainwater pipe network intercepting and protecting system 100 further includes at least one rainwater well 90 and a third liquid level meter 91, the rainwater well 90 is communicated with the rainwater pipe network pipeline 10, and the third liquid level meter 91 is disposed on a sidewall of the rainwater well 90 and electrically connected to the control system 60 for sensing the height of the liquid in the rainwater well 90.
Each catch basin 90 can correspond to a detection point, the third liquid level meter 91 senses the height change of liquid in the catch basin 90 corresponding to the detection point and transmits the height information to the control system 60, the control system 60 judges the change of the height of the liquid in the catch basin 90 corresponding to the detection point according to the height information and judges whether non-rainwater enters the catch basin 90 corresponding to the detection point according to the height of the liquid, so that workers can conduct targeted investigation and repair.
Referring to fig. 1 again, the rainwater pipe network intercepting protection system 100 further includes a rainfall sensor 92, and the rainfall sensor 92 is disposed corresponding to the rainwater well 90 and electrically connected to the control system 60 for sensing the rainfall condition of the area where the rainwater well 90 is located.
Specifically, if the rainfall sensor 92 senses that the area corresponding to the rainwater well 90 is not rained, but the third liquid level meter 91 senses that the height of the liquid in the rainwater well 90 corresponding to the area is increased, the control system determines that the height of the liquid in the rainwater well 90 is increased due to the fact that non-rainwater flows into the rainwater pipe network 10 or the rainwater well 90, the control system 60 controls the blow-off valve 51 to be opened so as to drain the non-rainwater in the rainwater pipe network 10 communicated with the rainwater well 90 to the catch basin 30 through the drainage pipe 40, the non-rainwater in the rainwater pipe network 10 is discharged in real time, the rainwater in the rainwater pipe network 10 or the rainwater well 90 is prevented from being polluted by the non-rainwater, and the control system 60 determines that the liquid discharge problem exists in the corresponding area according to the area where the rainwater well 90 is located so as to repair the rainwater well in time.
If the rainfall sensor 92 senses that the area corresponding to the rainwater well 90 is raining, at the beginning of the rainfall, the control system 60 determines that the liquid in the rainwater pipe network pipeline 10 or the rainwater well 90 may include rainwater and non-rainwater (for example, sewage flows into the rainwater pipe network pipeline 10 or the rainwater well 90 along with the rainwater, and the control system 60 controls the drainage valve 51 to be opened so as to drain the liquid (including rainwater and non-rainwater) in the rainwater pipe network pipeline 10 communicated with the rainwater well 90 to the catch basin 30 through the drainage pipeline 40, so as to prevent the non-rainwater from polluting the rainwater in the rainwater pipe network pipeline 10 or the rainwater well 90.
When the rainfall sensor 92 senses that the rainfall becomes large, a large amount of liquid flows into the rainwater pipe network pipeline 10 or the rainwater well 90, the control system 60 judges that the liquid in the rainwater pipe network pipeline 10 or the rainwater well 90 only contains rainwater, the control system 60 controls the drainage valve 51 to be closed, and a large amount of rainwater flows out through the rainwater pipe network pipeline 10.
When the rainfall sensor 92 senses that the rainfall stops and the third liquid level meter 91 senses that the liquid level in the rainwater well 90 corresponding to the area is within the preset range, the control system 60 controls the drainage valve 51 to be opened so as to drain the liquid (the liquid includes rainwater and may include non-rainwater) in the rainwater pipe network pipeline 10 communicated with the rainwater well 90 to the intercepting well 30 through the drainage pipeline 40.
In an embodiment of the present invention, the rainwater pipe network interception protection system 100 further includes a display screen (not shown) electrically connected to the control system 60 for displaying the distribution and operation status of the rainwater pipe network pipeline 10 and the intercepting well 30.
Thus, the distribution and the liquid condition of the rainwater pipe network pipeline 10 and the intercepting well 30 can be displayed in real time through the display screen.
In an embodiment of the present application, the rainwater pipe network intercepting and protecting system 100 further includes an early warning device (not shown) electrically connected to the control system 60 for sending out early warning information when the liquid level in the rainwater pipe network pipeline 10 is abnormal. So that the workers can repair and treat the workpieces in time.
Referring to fig. 1 and 2, when the rainwater pipe network intercepting and protecting system 100 operates:
when the rainfall sensor 92 detects that no rainfall exists in the corresponding area, but the third liquid level meter 91 detects that the height of the liquid in the rainwater well 90 corresponding to the detection point is greater than a preset value or the first liquid level meter 20 detects that the height of the liquid in the rainwater pipe network pipeline 10 is greater than a first preset value, the control system 60 judges that the rainwater well 90 or the rainwater pipe network pipeline 10 flows into non-rainwater (such as sewage), the control system 60 controls the drain valve 51 to be opened to communicate the drainage pipeline 40 with the catch basin 30, so that the sensed non-rainwater in the rainwater pipe network pipeline 10 flows to the catch basin through the drainage pipeline 40, and the non-rainwater is prevented from polluting the rainwater in the rainwater well 90 or the rainwater pipe network pipeline 10; when the control system 60 determines that the height of the liquid in the rainwater pipe network pipeline 10 is less than the preset value, the control system 60 controls the blowdown valve 51 to close; the second level gauge 70 senses that the height of the non-rainwater in the intercepting well 30 is greater than a preset value, and the control system 60 controls the dredge pump 52 to be turned on to discharge the non-rainwater in the intercepting well 30 to a preset position.
When the rainfall sensor 92 senses that the area corresponding to the rainwater well 90 has rainfall. In the early stage of rainfall, the first liquid level meter 20 senses that the height of the liquid in the rainwater pipe network pipeline 10 is greater than the first preset value or the third liquid level meter 91 senses that the height of the liquid in the rainwater well 90 in the corresponding area is greater than the second preset value, the control system 60 determines that the liquid in the rainwater pipe network pipeline 10 or the rainwater well 90 may include rainwater and non-rainwater, and the control system 60 controls the drain valve 51 to be opened to communicate the drainage pipeline 40 and the intercepting well 30, so that the liquid in the rainwater pipe network pipeline 10 is sensed to flow to the intercepting well 30 through the drainage pipeline 40.
When the rainfall sensor 92 detects that the rainfall is too large and the second liquid level meter 70 senses that the height change of the liquid in the intercepting well 30 is too fast, the control system 60 determines that the liquid in the rainwater pipe network pipeline 10 or the rainwater well 90 only includes rainwater, and the control system 60 controls the blowdown valve 51 to be closed to disconnect the drainage pipeline 40 and the intercepting well 30, so that a large amount of rainwater is prevented from entering the intercepting well 30.
When the rainfall sensor 92 detects that the rainfall stops, the first liquid level meter 20 senses that the height change of the liquid in the rainwater pipe network pipeline 10 is slow or the third liquid level meter 91 senses that the height change of the liquid in the rainwater well 90 in the corresponding area is slow, the control system 60 judges that the liquid in the rainwater pipe network pipeline 10 or the rainwater well 90 may include non-rainwater, and the control system 60 controls the drain valve 51 to be opened to communicate the drainage pipeline 40 and the intercepting well 30, so that the liquid in the sensed rainwater pipe network pipeline 10 flows to the intercepting well 30 through the drainage pipeline 40, and then the liquid flowing into the intercepting well 30 is discharged.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (7)
1. A rainwater pipe network sewage interception protection system comprises a rainwater pipe network pipeline, a first liquid level meter, an intercepting well, a drainage pipeline, a sewage discharge system and a control system, and is characterized in that,
the first liquid level meter is arranged in the rainwater pipe network pipeline and used for sensing the height of liquid in the rainwater pipe network pipeline;
the rainwater pipe network pipeline is communicated with the intercepting well through the drainage pipeline;
the sewage discharge system comprises a sewage discharge valve and a sewage discharge pump, wherein the sewage discharge valve is arranged on the inner side wall of the intercepting well and used for controlling the connection and disconnection between the drainage pipeline and the intercepting well;
the sewage pump is arranged at the bottom of the intercepting well and is used for discharging liquid in the intercepting well;
the first liquid level meter, the sewage valve and the sewage pump are all electrically connected with the control system.
2. The rainwater pipe network interception protection system of claim 1,
the intercepting well comprises a well body and a well cover, the sewage discharge valve is arranged on the inner side wall of the well body, the rainwater pipe network pipeline is communicated with the well body through the drainage pipeline, the well cover is arranged on the well body in a covering manner, the sewage discharge pump is arranged at the bottom of the well body, the rainwater pipe network sewage interception protection system further comprises a second liquid level meter,
the well lid orientation be provided with on one side of the well body the second level gauge, the second level gauge with the control system electricity is connected, in order to be used for the sensing the height of liquid in the vatch basin.
3. The rainwater pipe network interception protection system of claim 1 further comprising a sewer pipe,
the sewage pipeline is communicated with the sewage pump through a sewage pipe.
4. The rainwater pipeline network interception protection system of claim 3 wherein said sewage system further comprises a flow meter,
the flowmeter is arranged on the sewage pipe and used for sensing the flow of the liquid transmitted by the sewage pipe.
5. The rainwater pipe network interception protection system of claim 2,
the first liquid level meter is a drop-in liquid level meter, and the second liquid level meter is an ultrasonic liquid level meter.
6. The rainwater pipe network interception protection system of claim 2,
the side wall of the well body is provided with a water inlet and a water outlet, the height of the water outlet is larger than that of the water inlet, the drainage pipeline is communicated with the intercepting well through the water inlet, the sewage pump is communicated with the water outlet, and the sewage valve is used for opening or closing the water inlet.
7. The rainwater pipe network interception protection system of claim 1 further comprising at least one rainwater well and a third liquid level meter,
the rainwater well is communicated with the rainwater pipe network pipeline,
the third liquid level meter is arranged on the side wall of the rainwater well and electrically connected with the control system so as to be used for sensing the height of liquid in the rainwater well.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174307.5U CN215594298U (en) | 2021-05-28 | 2021-05-28 | Rainwater pipe net cuts dirty protection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174307.5U CN215594298U (en) | 2021-05-28 | 2021-05-28 | Rainwater pipe net cuts dirty protection system |
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| CN215594298U true CN215594298U (en) | 2022-01-21 |
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Address after: 450016 standard workshop No.7, Henan Zhengzhou export processing zone, 9th Street, Zhengzhou Economic Development Zone, Henan Province Patentee after: Fulian Precision Electronics (Zhengzhou) Co.,Ltd. Address before: 450016 standard workshop No.7, Henan Zhengzhou export processing zone, 9th Street, Zhengzhou Economic Development Zone, Henan Province Patentee before: Futaihua precision electronics (Zhengzhou) Co.,Ltd. |