CN117536303A - Building drainage pipeline blocks up overflow alarm system and prevents blockking up overflow ware - Google Patents
Building drainage pipeline blocks up overflow alarm system and prevents blockking up overflow ware Download PDFInfo
- Publication number
- CN117536303A CN117536303A CN202311857527.1A CN202311857527A CN117536303A CN 117536303 A CN117536303 A CN 117536303A CN 202311857527 A CN202311857527 A CN 202311857527A CN 117536303 A CN117536303 A CN 117536303A
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- overflow
- pipe
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- section
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000010865 sewage Substances 0.000 claims abstract description 23
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/24—Overflow devices for basins or baths
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/122—Pipe-line systems for waste water in building
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/122—Pipe-line systems for waste water in building
- E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/24—Overflow devices for basins or baths
- E03C2001/2406—Overflow alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The invention discloses a building drainage pipeline blockage overflow alarm system and a blockage prevention overflow device. When the drainage transverse pipe section is blocked, sewage is drained to the lower drainage vertical pipe section through the anti-blocking overflow device and the drainage branch pipe; the water flow indicator detects the water flow information of the water discharge branch pipe and sends out an alarm signal. The invention solves the problem of sewage flowing backward into the house due to the blockage of the drainage pipeline of the building, reduces the economic loss of the owner, and alarms in time to remind the property to maintain, thereby having ingenious structure, low manufacturing cost and strong practicability.
Description
Technical Field
The invention relates to the field of building drainage, in particular to a building drainage pipeline blockage overflow alarm system and a blockage prevention overflow device.
Background
At present, the residences in China are mainly high-rise, even a plurality of super high-rise residences occur in some cities, the drainage system is often blocked, and sewage and wastewater flow backward into the residences, so that serious economic loss is caused. The basic requirement of the residential drainage system is that the water flow is smooth, various problems such as aging of the drainage system and the like are solved thoroughly along with the increase of the service life of the building, but the problem of blockage of the drainage system of the building is solved, the problem of backflow of sewage and wastewater into a residential room caused by blockage of the drainage system can be solved, the economic loss of an owner is reduced, and the maintenance of the property is warned in time.
Disclosure of Invention
In view of the above, the invention provides a building drainage pipeline blockage overflow alarm system and a blockage prevention overflow device, which solve the problem that sewage and wastewater flow backward into a house due to the blockage of the drainage pipeline, reduce the economic loss of owners, and timely alarm and remind the property maintenance, and have ingenious structure, low manufacturing cost and strong practicability.
On one hand, the invention provides a building drainage pipeline blockage overflow alarm system, which is formed by connecting an upper drainage vertical pipe section, a drainage horizontal pipe section and a lower drainage vertical pipe section in sequence, wherein an anti-blockage overflow device is connected between the upper drainage vertical pipe section and the drainage horizontal pipe section, a drainage branch pipe is connected between the anti-blockage overflow device and the lower drainage vertical pipe section, and a water flow indicator is arranged on the drainage branch pipe.
In a further technical scheme, when the drainage transverse pipe section is blocked, sewage is drained to the lower drainage riser section through the anti-blocking overflow device and the drainage branch pipe; the water flow indicator detects the water flow information of the water discharge branch pipe and sends out an alarm signal.
In a further technical scheme, a sanitary ware is connected to the water discharge branch pipe, and the sanitary ware is positioned at the downstream of the water flow indicator; the drainage transverse pipe section, the lower drainage vertical pipe section, the drainage branch pipe and the water flow indicator are arranged in the building overhead layer.
In a further technical scheme, the anti-blocking overflow device comprises a vertical pipe and an overflow pipe which are mutually communicated, wherein the upper end of the vertical pipe is provided with a water inlet, the lower end of the vertical pipe is provided with a water outlet, and the lower end of the overflow pipe is provided with an overflow port; the water inlet is connected with the upper drainage vertical pipe section, the water outlet is connected with the drainage transverse pipe section, and the overflow port is connected with the drainage branch pipe; when the water outlet is blocked, the sewage of the vertical pipe is discharged from the overflow port to the water outlet branch pipe.
In a further technical scheme, a slope channel is arranged between the vertical pipe and the overflow pipe, and extends upwards from one side of the vertical pipe to one side of the overflow pipe; the vertical pipe sequentially comprises a gradual expansion section A1, a capacity expansion section A2 and a gradual contraction section A3 from top to bottom; the distance H1 from the tail of the tapered section A3 to the highest overflow point E of the slope channel is more than 200mm.
In a further technical scheme, the inner diameters DN1 of the water channel of the water inlet and the water outlet are equal, the inner diameter of the expansion section A2 is more than 2 times of the inner diameter DN1 of the water channel of the water inlet, and the transverse clear height H2 of the slope channel is more than or equal to the inner diameter DN1 of the water channel of the water inlet; the inner diameter of the water passing channel of the overflow port is larger than or equal to the inner diameter DN1 of the water passing channel of the water inlet; the included angle R1 between the axis of the slope channel and the axis of the vertical pipe is more than 20 degrees and less than 80 degrees; the axes of the vertical pipe and the overflow pipe are parallel; inspection ports are arranged on the side walls of the vertical pipe and the overflow pipe.
On the other hand, the invention also provides an anti-blocking overflow device, which comprises a vertical pipe and an overflow pipe which are mutually communicated, wherein the upper end of the vertical pipe is provided with a water inlet, the lower end of the vertical pipe is provided with a water outlet, and the lower end of the overflow pipe is provided with an overflow port; when the water outlet is blocked, the sewage of the vertical pipe is discharged from the overflow port.
In a further technical scheme, a slope channel is arranged between the vertical pipe and the overflow pipe, and extends upwards from one side of the vertical pipe to one side of the overflow pipe; the vertical pipe sequentially comprises a gradual expansion section A1, a capacity expansion section A2 and a gradual contraction section A3 from top to bottom; the distance H1 from the tail of the tapered section A3 to the highest overflow point E of the slope channel is more than 200mm.
In a further technical scheme, the inner diameters DN1 of the water channel of the water inlet and the water outlet are equal, the inner diameter of the expansion section A2 is more than 2 times of the inner diameter DN1 of the water channel of the water inlet, and the transverse clear height H2 of the slope channel is more than or equal to the inner diameter DN1 of the water channel of the water inlet; the inner diameter of the water passing channel of the overflow port is larger than or equal to the inner diameter DN1 of the water passing channel of the water inlet.
In a further technical scheme, an included angle R1 between the axis of the slope channel and the axis of the vertical pipe is more than 20 degrees and less than 80 degrees; the axes of the vertical pipe and the overflow pipe are parallel; inspection ports are arranged on the side walls of the vertical pipe and the overflow pipe.
Compared with the prior art, the building drainage pipeline blockage overflow alarm system and the blockage prevention overflow device have the beneficial effects that:
when the drainage transverse pipe section is blocked, sewage is drained to the lower drainage vertical pipe section through the anti-blocking overflow device and the drainage branch pipe; the water flow indicator detects the water flow information of the water discharge branch pipe and sends out an alarm signal. The problem of the indoor backward flow of dirty waste water to the house because of drainage pipe blocks up is solved, reduces owner economic loss to in time report to the police and remind the property maintenance, the structure is ingenious, cost is with low costs, and the practicality is strong.
Because the inner diameters DN1 of the water channel of the water inlet, the water outlet and the overflow port are equal, the transverse clear height H2 of the slope channel is larger than or equal to the inner diameter DN1 of the water channel of the water inlet. When the drainage transverse pipe section is blocked, the drainage flow of sewage passing through the overflow pipe is ensured to be unchanged, and the drainage is smooth.
Because a slope channel is arranged between the vertical pipe and the overflow pipe, the slope channel extends upwards from one side of the vertical pipe to one side of the overflow pipe; the vertical pipe sequentially comprises a gradual expansion section A1, a capacity expansion section A2 and a gradual contraction section A3 from top to bottom; the distance H1 from the tail of the tapered section A3 to the highest overflow point E of the slope channel is more than 200mm. The inner diameter of the expansion section A2 is more than 2 times of the inner diameter DN1 of the water channel of the water inlet. The included angle R1 between the axis of the ramp channel and the axis of the riser is greater than 20 degrees and less than 80 degrees. Under the condition that the drainage transverse pipe section is not blocked, sewage is prevented from being drained to the lower drainage vertical pipe section through the overflow pipe and the drainage branch pipe, and the water flow indicator sends out an error alarm signal.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a diagram of a normal drainage condition of a building drainage pipe blockage overflow alarm system of the present invention;
FIG. 2 is a block drain status diagram of the building drain pipe block overflow alarm system of the present invention;
fig. 3 is a schematic view of an anti-clogging overflow device according to the present invention.
Description of the embodiments
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments. The above, greater than, and less than the present invention include the present numbers.
As shown in fig. 1 and 2, the invention provides a building drainage pipeline blockage overflow alarm system, which is formed by connecting an upper drainage vertical pipe section 1, a drainage transverse pipe section 3 and a lower drainage vertical pipe section 4 in sequence, wherein an anti-blockage overflow device 2 is connected between the upper drainage vertical pipe section 1 and the drainage transverse pipe section 3, a drainage branch pipe 5 is connected between the anti-blockage overflow device 2 and the lower drainage vertical pipe section 4, and a water flow indicator 8 is arranged on the drainage branch pipe 5. The water discharge branch pipe 5 is connected with sanitary devices 6 and 7, and the sanitary devices 6 and 7 are positioned at the downstream of the water flow indicator 8; the drainage transverse pipe section 3, the lower drainage vertical pipe section 4, the drainage branch pipe 5 and the water flow indicator 8 are arranged in the building overhead layer; the anti-blocking overflow device 2 is positioned above the building overhead floor slab. The water flow indicator 8 is a water flow signal alarm device for detecting water flow signals and emitting sound and light alarm signals, and is mainly applied to fire protection systems at present. The water flow indicator 8 may detect the water flow signal by various means such as ultrasonic wave, electromagnetic water flow sensor, etc.
As shown in fig. 1, during normal drainage, sewage is discharged from the upper drainage upright pipe section 1, the anti-clogging overflow device 2, the drainage transverse pipe section 3 and the lower drainage upright pipe section 4 in sequence. The sewage of the sanitary appliances 6,7 of the first-floor house is discharged to the lower drain riser section 4 through the drain branch pipe 5. Since the sanitary ware 6,7 is located downstream of the water flow indicator 8, the water flow indicator 8 does not give an abnormal alarm signal at the time of normal drainage.
As shown in fig. 2, when the drainage cross pipe section 3 is blocked, as the water level in the anti-blocking overflow device (2) rises, after the water level reaches the highest overflow point E, sewage is drained to the lower drainage riser section 4 through the overflow pipe 22 and the drainage branch pipe 5; the water flow indicator 8 detects the water flow information of the water discharge branch pipe 5, sends out an alarm signal and sends out an alarm signal to the decontamination chamber. The problem of the indoor backward flow of dirty waste water to the house because of drainage pipe blocks up is solved, reduces owner economic loss to in time report to the police and remind the property maintenance, the structure is ingenious, cost is with low costs, and the practicality is strong.
As shown in fig. 3, the invention also provides an anti-blocking overflow device 2, wherein the anti-blocking overflow device 2 comprises a vertical pipe 20 and an overflow pipe 22 which are mutually communicated, a water inlet 23 is formed at the upper end of the vertical pipe 20, a water outlet 24 is formed at the lower end of the vertical pipe 20, and an overflow port 25 is formed at the lower end of the overflow pipe 22; the water inlet 23 is connected with the upper drainage vertical pipe section 1, the water outlet 24 is connected with the drainage transverse pipe section 3, and the overflow port 25 is connected with the drainage branch pipe 5; when the drain port 24 is blocked, the sewage of the stand pipe 20 is discharged from the overflow port 25 to the drain branch pipe 5. Inspection ports 26 are provided in both the riser 20 and the overflow tube 22 side walls. The service personnel can check the drainage condition of the building drainage pipeline through the check port 26.
Under normal drainage conditions, as the building drainage flow increases, the water level in the riser 20 rises and sewage anomaly drains through the overflow pipe 22 and the drain branch pipe 5 to the lower drainage riser section 4, the water flow indicator 8 emitting a false alarm signal. In order to solve the above problem, a ramp channel 21 is provided between the riser 20 and the overflow pipe 22, the ramp channel 21 extends upward from the side of the riser 20 to the side of the overflow pipe 22, and an included angle R1 between the axis of the ramp channel 21 and the axis of the riser 20 is 45 degrees; the axes of the riser 20 and the overflow tube 22 are parallel.
In order to solve the above problems, a solution of the capacity expansion riser 20 is adopted. The vertical pipe 20 comprises a gradually expanding section A1, a capacity expanding section A2 and a gradually shrinking section A3 from top to bottom; the inner diameter of the expansion section A2 is 200mm, the inner diameter of the expansion section A2 is more than 2 times of the inner diameter DN1 of the water channel of the water inlet 23, and the distance H1 from the tail part of the tapered section A3 to the highest overflow point E of the slope channel 21 is equal to 400mm. When the building drainage pipeline drains at the maximum flow, water plug flow is generated at the water inlet 23 of the vertical pipe 20, and water film flow is generated at the gradual expansion section A1, the expansion section A2 and the gradual expansion section A3 due to the expansion of the middle part of the vertical pipe 20, and water plug flow is generated at the water outlet 24 of the vertical pipe 20. Since the distance H1 from the tail of the tapered section A3 to the highest overflow point E of the slope channel 21 is equal to 400mm, the height of the water in the vertical pipe 20 is equal to 400mm, and the sewage of the vertical pipe 20 can be discharged from the overflow pipe 22. The larger the inner diameter of the expansion section A2 and the larger the H1, the better the drainage effect of avoiding sewage abnormality through the overflow pipe 22.
When the drainage transverse pipe section 3 is blocked, the drainage flow of sewage through the overflow pipe 22 is ensured to be unchanged, and the drainage is smooth. In order to solve the above problem, the water passage inner diameter DN1 of the water inlet 23, the water outlet 24 and the overflow port 25 is the same, and the lateral clear height H2 of the ramp passage 21 is equal to the water passage inner diameter DN1 of the water inlet 23. DN1 is 100mm and the transverse clear height H2 of the ramp channel 21 is 100mm. Since the drainage flow rate of the sewage through the overflow pipe 22 is not changed, the drainage is smooth.
The techniques not described above are common general knowledge to a person skilled in the art. The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. Building drainage pipeline blocks up overflow alarm system, and building drainage pipeline comprises last drainage riser section (1), drainage horizontal pipe section (3), drainage riser section (4) interconnect in proper order, its characterized in that is connected with between last drainage riser section (1) and drainage horizontal pipe section (3) and blocks up overflow ware (2), is connected with drainage branch pipe (5) between blocking up overflow ware (2) and drainage riser section (4) down, installs rivers indicator (8) on drainage branch pipe (5).
2. The building drainage pipe blockage overflow alarm system of claim 1, wherein when the drainage cross pipe section (3) is blocked, sewage is drained to the lower drainage riser section (4) through the blockage prevention overflow (2) and the drainage branch pipe (5); the water flow indicator (8) detects the water flow information of the water discharge branch pipe (5) and sends out an alarm signal.
3. Building drainage pipe blockage overflow alarm system according to claim 2, characterized in that a sanitary fixture (6, 7) is connected to the drainage branch pipe (5), the sanitary fixture (6, 7) being located downstream of the water flow indicator (8); the drainage transverse pipe section (3), the lower drainage vertical pipe section (4), the drainage branch pipe (5) and the water flow indicator (8) are arranged in the building overhead layer.
4. The building drainage pipeline blockage overflow alarm system according to claim 1, wherein the blockage prevention overflow device (2) comprises a vertical pipe (20) and an overflow pipe (22) which are communicated with each other, a water inlet (23) is formed in the upper end of the vertical pipe (20), a water outlet (24) is formed in the lower end of the vertical pipe (20), and an overflow port (25) is formed in the lower end of the overflow pipe (22); the water inlet (23) is connected with the upper drainage vertical pipe section (1), the water outlet (24) is connected with the drainage transverse pipe section (3), and the overflow port (25) is connected with the drainage branch pipe (5); when the drain port (24) is blocked, the sewage of the stand pipe (20) is discharged from the overflow port (25) to the drain branch pipe (5).
5. The building drainage pipe blockage overflow alarm system as claimed in claim 4, wherein a ramp channel (21) is provided between the riser (20) and the overflow pipe (22), the ramp channel (21) extending upwardly from one side of the riser (20) to one side of the overflow pipe (22); the vertical pipe (20) comprises a divergent section A1, a dilatation section A2 and a convergent section A3 from top to bottom in sequence; the distance H1 from the tail of the tapered section A3 to the highest overflow point E of the slope channel (21) is more than 200mm.
6. The building drainage pipeline blockage overflow alarm system of claim 5, wherein the water inlet (23) and the water outlet (24) have equal water channel inner diameters DN1, the inner diameter of the expansion section A2 is more than 2 times of the water channel inner diameter DN1 of the water inlet (23), and the transverse clear height H2 of the slope channel (21) is more than or equal to the water channel inner diameter DN1 of the water inlet (23); the inner diameter of the water passing channel of the overflow port (25) is larger than or equal to the inner diameter DN1 of the water passing channel of the water inlet (23); the included angle R1 between the axis of the slope channel (21) and the axis of the vertical pipe (20) is more than 20 degrees and less than 80 degrees; the axes of the vertical pipe (20) and the overflow pipe (22) are parallel; inspection ports (26) are arranged on the side walls of the vertical pipe (20) and the overflow pipe (22).
7. An anti-blocking overflow device is characterized by comprising a vertical pipe (20) and an overflow pipe (22) which are communicated with each other, wherein a water inlet (23) is formed in the upper end of the vertical pipe (20), a water outlet (24) is formed in the lower end of the vertical pipe (20), and an overflow port (25) is formed in the lower end of the overflow pipe (22); when the drain port (24) is blocked, the sewage of the riser (20) is discharged from the overflow port (25).
8. The anti-clogging overflow device according to claim 7, characterized in that a ramp channel (21) is arranged between the riser (20) and the overflow pipe (22), the ramp channel (21) extending upwards from the side of the riser (20) to the side of the overflow pipe (22); the vertical pipe (20) comprises a divergent section A1, a dilatation section A2 and a convergent section A3 from top to bottom in sequence; the distance H1 from the tail of the tapered section A3 to the highest overflow point E of the slope channel (21) is more than 200mm.
9. The anti-clogging overflow device as claimed in claim 8, wherein the water inlet (23) and the water outlet (24) have an equal water channel inner diameter DN1, the inner diameter of the expansion section A2 being more than 2 times the water channel inner diameter DN1 of the water inlet (23), the lateral clear height H2 of the ramp channel (21) being greater than or equal to the water channel inner diameter DN1 of the water inlet (23); the inner diameter of the water passing channel of the overflow port (25) is larger than or equal to the inner diameter DN1 of the water passing channel of the water inlet (23).
10. The anti-clogging overflow device according to claim 9, characterized in that the angle R1 between the axis of the ramp channel (21) and the axis of the riser (20) is more than 20 degrees and less than 80 degrees; the axes of the vertical pipe (20) and the overflow pipe (22) are parallel; inspection ports (26) are arranged on the side walls of the vertical pipe (20) and the overflow pipe (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311857527.1A CN117536303A (en) | 2023-12-29 | 2023-12-29 | Building drainage pipeline blocks up overflow alarm system and prevents blockking up overflow ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311857527.1A CN117536303A (en) | 2023-12-29 | 2023-12-29 | Building drainage pipeline blocks up overflow alarm system and prevents blockking up overflow ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117536303A true CN117536303A (en) | 2024-02-09 |
Family
ID=89796155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311857527.1A Pending CN117536303A (en) | 2023-12-29 | 2023-12-29 | Building drainage pipeline blocks up overflow alarm system and prevents blockking up overflow ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117536303A (en) |
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2023
- 2023-12-29 CN CN202311857527.1A patent/CN117536303A/en active Pending
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