CN215802087U - Sewage buffer tank and drainage system - Google Patents
Sewage buffer tank and drainage system Download PDFInfo
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- CN215802087U CN215802087U CN202120361809.2U CN202120361809U CN215802087U CN 215802087 U CN215802087 U CN 215802087U CN 202120361809 U CN202120361809 U CN 202120361809U CN 215802087 U CN215802087 U CN 215802087U
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- 239000010865 sewage Substances 0.000 title claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000007788 liquid Substances 0.000 claims description 14
- 239000008239 natural water Substances 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims 5
- 230000001105 regulatory effect Effects 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model discloses a sewage buffer tank, which comprises: the tank body is provided with a shunting area and a buffer area, and the shunting area is provided with a water inlet pipe and a water outlet pipe; the first on-off switch is correspondingly arranged at the pipe orifice part of the water outlet pipe; a buffer port is arranged between the buffer area and the shunting area so as to communicate the buffer area and the shunting area; and the second on-off switch is arranged at the buffer port. The utility model can achieve the technical effect of regulating and storing sewage, integrates the flow distribution area and the buffer area on the same tank body, greatly saves the construction and installation time, and has the characteristics of low cost, simple structure, convenient operation and wide applicability.
Description
Technical Field
The utility model belongs to the technical field of drainage, and particularly relates to a sewage buffer tank and a drainage system.
Background
The urban pipe network is divided into a confluence drainage system and a shunt drainage system and is used for discharging sewage (such as domestic sewage) in a unit area.
However, in this drainage method, the drained sewage directly enters the drainage pipe and then mixes with the rainwater, and if the mixed water of the rainwater and the sewage is directly drained into the natural water body in rainy days, the received water body is easily polluted seriously, and if the mixed water is directly drained into the sewage treatment facility for treatment, a large amount of clean rainwater in rainy days enters the sewage treatment facility for unnecessary treatment, which results in resource waste.
Therefore, the structural design that sewage directly enters a sewage discharge pipeline to be output in the prior art has the technical defects that the natural water body is extremely easy to seriously pollute in rainy days, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems that in the prior art, the structural design that sewage directly enters a sewage discharge pipeline to be output easily causes serious pollution to natural water bodies in rainy days, or has the technical defects of overlarge treatment pressure of sewage treatment facilities, resource waste and the like.
In order to solve the above technical problems, the present invention provides a sewage buffer tank, comprising:
the tank body is provided with a shunting area and a buffer area, the shunting area is provided with a water inlet pipe and a water outlet pipe, and the buffer area is provided with a buffer port;
the first on-off switch is embedded in the water outlet pipe and is used for controlling the on-off of water flow at the water outlet pipe;
the second on-off switch is embedded in the buffer port and used for controlling the on-off of water flow at the buffer port;
when the first on-off switch is closed, the second on-off switch is opened, and sewage flowing into the shunting area from the water inlet pipe flows into the buffering area through the buffering opening;
when the first on-off switch is turned on, sewage flowing into the diversion area from the water inlet pipe is discharged into a downstream pipeline or a natural water body through the water outlet pipe, and/or sewage in the buffer area flows into the diversion area through the buffer opening.
Alternatively to this, the first and second parts may,
the shunting area and the buffering area are of tank body structures integrally formed by glass steel materials.
Alternatively to this, the first and second parts may,
the bottom elevation of the buffer opening is equal to or higher than the pipe top elevation of the water outlet pipe;
the sewage buffer tank still includes:
the draining pump is arranged at the bottom of the buffer area;
and the water inlet pipe orifice of the water discharge pipe is communicated with the drainage pump, and the water outlet pipe orifice of the water discharge pipe is communicated with the buffer port.
Alternatively to this, the first and second parts may,
the bottom elevation of the buffer opening is equal to or higher than the pipe top elevation of the water outlet pipe;
the sewage buffer tank still includes:
the water inlet pipe orifice of the water outlet pipe is positioned at the bottom of the buffer area, and the water outlet pipe orifice of the water outlet pipe is communicated with the buffer opening;
the gas pipe is arranged in the buffer area and communicated with the outside;
and the air source is connected with the air conveying pipe.
Alternatively to this, the first and second parts may,
the drain pipe is L-shaped.
Alternatively to this, the first and second parts may,
the first on-off switch is one of the following switches: a gate, a valve, a pinch valve, or a flexible shut-off device.
Alternatively to this, the first and second parts may,
the first on-off switch is one of the following switches: a gate, a valve, a pinch valve, or a flexible shut-off device.
In another aspect of the present invention, there is provided a drainage system, including:
the sewage buffer tank of any preceding item.
Has the advantages that:
firstly, when the sewage is required to be regulated and stored in a rainy day, the first on-off switch is in a closed state, and at the moment, the sewage flows into the buffer area through the buffer opening under the action of the gravity of the sewage along with the continuous rising of the liquid level of the sewage in the flow dividing area; when the rainfall is finished, the first on-off switch is in an on state, and at the moment, sewage in the buffer area flows into the flow dividing area from the buffer opening and is discharged by the water outlet pipe, so that the technical defects that the discharged sewage directly enters a sewage discharge pipeline to be output in the prior art, the natural water body is very easily polluted in rainy days, or the sewage treatment facility has overlarge treatment pressure, resource waste and the like are effectively overcome, the technical effect of regulating and storing the sewage when the sewage discharge is not needed can be achieved, and the rainfall;
the sewage buffer tank integrates the flow dividing area and the buffer area on one tank body, so that the occupied area is reduced compared with the separated independent design, the whole tank body can be integrally installed and debugged in a factory, and the sewage buffer tank is installed on site after delivery is qualified, so that the construction and installation time is greatly saved, and the sewage buffer tank has the characteristic of low cost.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of a sewage buffer tank according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a side view of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification are within the protection scope of the present invention; the "and/or" keyword referred to in this embodiment means sum or two cases, in other words, a and/or B mentioned in the embodiments of this specification means two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, and means: only A does not include B; only B does not include A; including A and B.
Meanwhile, in the embodiments of the present description, when an element is referred to as being "fixed to" another element, it may be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical", "horizontal", "left", "right" and the like used in the embodiments of the present specification are for illustrative purposes only and are not intended to limit the present invention.
Example 1
Referring to fig. 1-3, the sewage buffer tank provided in the embodiments of the present disclosure has a function of regulating and storing sewage, and includes a tank body having a flow dividing region 1 and a buffer region 2, both of which are integrated on a tank body, and the two regions are separated by a partition plate, and are adjacently distributed, so as to form an integrated tank body or a tank body with a cylindrical structure. An inlet pipe 3 and an outlet pipe 4 are arranged on the diversion area 1, the inlet pipe 3 is used for being connected with an upstream pipeline (such as an outlet pipe of a septic tank) to receive discharged sewage, the outlet pipe 4 is connected with a downstream pipeline to discharge the sewage, and 1 or more outlet pipes 3 can be arranged in the practical application process to form a plurality of discharge outlets connected with different types of downstream pipelines (such as a sewage interception pipe, a confluence pipe and the like). Meanwhile, the number of the first on-off switches 6 is the same as that of the water outlet pipes 4, that is, each first on-off switch 6 is correspondingly arranged at the pipe orifice of one water outlet pipe 4 to control whether the sewage of the water outlet pipe 4 circulates or not. The buffer port 5 is provided in the buffer area 2 and communicates the two areas of the buffer area 2 and the shunt area 1.
Therefore, when sewage is directly discharged without regulation and storage in sunny days, the first on-off switch is in an on state, the sewage input by the water inlet pipe 3 is directly discharged to a downstream pipeline through the water outlet pipe 4, and when the sewage is required to be regulated and stored in rainy days, the first on-off switch 6 is in an off state, and the sewage flows into the buffer area 2 through the buffer opening under the action of self gravity along with the continuous rise of the sewage level in the diversion area 1; the first on-off switch 6 is in an open state when rainfall is finished, and sewage in the buffer area 2 flows into the flow distribution area 1 under the driving action of the driving force and is discharged by the water outlet pipe 4, so that the technical defects that the discharged sewage directly enters a sewage discharge pipeline to be output in the prior art, namely, natural water is extremely easy to cause serious pollution in rainy days, or the technical defects of overlarge treatment pressure of a sewage treatment facility, resource waste and the like are effectively overcome, the technical effect of regulating and storing the sewage when the sewage discharge is not needed can be achieved, the tank has the characteristics of simple structure, convenience in operation and wide applicability, in addition, the flow distribution area 1 and the buffer area 2 are integrated on one tank body 1, the occupied area is reduced compared with the separated independent design, the whole tank body 1 can be integrally installed and debugged in a factory, and the tank body is installed on site after the tank body 1 is qualified, greatly saves the time of construction and installation and has the characteristic of low cost.
In the present embodiment, as a first embodiment of the circulation of the sewage in the buffer area 2, it may include: drain pump, drain pipe 9.
The draining pump is arranged at the bottom of the buffering area 2, a water inlet pipe opening of the draining pipe 9 is communicated with the draining pump, and a water outlet pipe opening of the draining pipe 9 is communicated with the flow dividing area 1. It should be noted that, in this embodiment, the tube bottom elevation of the buffer port (which can be understood as the bottommost portion of the buffer port) is equal to or higher than the tube top elevation of the water outlet tube 4 (which can be understood as the topmost portion of the water outlet tube 4); the reason is that in sunny days, only the sewage flowing in from the water inlet pipe 3 is directly discharged through the water outlet pipe 4, so that when the pipe bottom elevation of the buffer opening is equal to or higher than the pipe top elevation of the water outlet pipe 4, the sewage can be effectively prevented from flowing into the buffer area through the buffer opening, and when the sewage in the diversion area 1 needs to be regulated and stored in rainy days, the first on-off switch 6 is closed at the moment, and the sewage flows into the buffer area 2 through the buffer opening under the action of self gravity along with the continuous rising of the sewage liquid level in the diversion area 1; and when the rainfall is finished, the first on-off switch 6 is in an open state, and at the moment, the sewage in the buffer area 2 flows into the diversion area 1 through the drain pipe 9 under the driving action of the drain pump and is discharged by the water outlet pipe 4. For the outlet nozzle of the drain pipe 9, it may be directly disposed in the buffer port for the sake of structural simplicity. Of course, it is also possible to additionally provide a pipe opening on the partition between the diversion area 1 and the buffer area 2, and this embodiment is not limited as long as the structure design that sewage in the buffer area 2 is driven into the diversion area 1 through the drain pipe 9 under the driving action of the drain pump can be implemented, and the present invention is applicable to this embodiment.
In this embodiment, as a second implementation manner of the circulation of the sewage in the buffer area 2, the on-off can be controlled by providing a second on-off switch at the buffer port, and at this time, the pipe bottom elevation of the buffer port (which can be understood as the bottommost part of the buffer port) may not be limited to be equal to or higher than the pipe top elevation of the water outlet pipe 4 (which can be understood as the topmost part of the water outlet pipe 4); this is because in a sunny day, although only the sewage flowing in through the water inlet pipe 3 is directly discharged through the water outlet pipe 4, at this time, if the pipe bottom elevation of the buffer opening is lower than the pipe top elevation of the water outlet pipe 4, only the second on-off switch needs to be closed. And when the pipe bottom elevation of the buffer opening is equal to or higher than the pipe top elevation of the water outlet pipe 4, the second on-off switch can not do any action. Therefore, the sewage is effectively prevented from flowing into the buffer area through the buffer opening, when the sewage in the diversion area 1 needs to be regulated and stored in rainy days, the first on-off switch 6 is closed, the second on-off switch is opened, and the sewage flows into the buffer area 2 through the buffer opening under the action of self gravity along with the continuous rising of the liquid level of the sewage in the diversion area 1; and when the rainfall is finished, the first on-off switch 6 is in an open state, the second on-off switch is also in an open state, and at the moment, the sewage in the buffer area 2 flows into the flow dividing area 1 through the drain pipe 9 under the driving action of the drain pump and is discharged by the water outlet pipe 4. For the outlet nozzle of the drain pipe 9, it may be directly disposed in the buffer port for the sake of structural simplicity. Of course, it is also possible to additionally provide a pipe opening on the partition between the diversion area 1 and the buffer area 2, and this embodiment is not limited as long as the structure design that sewage in the buffer area 2 is driven into the diversion area 1 through the drain pipe 9 under the driving action of the drain pump can be implemented, and the present invention is applicable to this embodiment.
It should be added here that, for the pump drainage mode formed by the drainage pump and the drainage pipe 9, a third on-off switch may be additionally provided at the position of the water outlet pipe opening of the drainage pipe 9, and those skilled in the art can understand by combining the design principle of the second on-off switch that, after the third on-off switch is provided at the position of the water outlet pipe opening of the drainage pipe 9, the setting position of the bottom elevation of the water outlet pipe opening of the drainage pipe 9 may not be limited, and similarly, if the drainage pump or the drainage pipe 9 is provided with a switch valve, the function of the third on-off switch can be realized by the switch valve, which is not described again, and the design principle of providing the third on-off switch at the position of the water outlet pipe opening of the drainage pipe 9 may refer to the design principle of the second on-off switch, and the two are completely the same.
In the present embodiment, as a third embodiment of the sewage circulation in the buffer area 2, it may include: a water discharge pipe 9, a gas pipe and a gas source.
Wherein, the water inlet pipe mouth of drain pipe 9 is located the bottom of buffer area 2, and the water outlet pipe mouth of drain pipe 9 can open and establish on buffer area 2 and reposition of redundant personnel regional 1 common baffle for communicate buffer area 2 and reposition of redundant personnel regional 1, and the gas-supply pipe setting is connected the air supply in buffer area 2, and communicates with each other with the external world, and the air supply can be arranged in buffer area 2 outsidely, adopt external air supply can.
It should be noted that, in this embodiment, the elevation of the bottom of the water inlet pipe of the water outlet pipe 9 (which can be understood as the bottommost position of the water inlet pipe of the water outlet pipe 9) is equal to or higher than the elevation of the top of the water outlet pipe 4 (which can be understood as the topmost position of the water outlet pipe 4); the reason is that in sunny days, only the sewage flowing in from the water inlet pipe 3 is directly discharged through the water outlet pipe 4, so that when the elevation of the bottom of the water inlet pipe orifice of the water outlet pipe 9 is equal to or higher than the elevation of the top of the water outlet pipe 4, the sewage can be effectively prevented from flowing into the storage and regulation facility 12 through the storage and regulation assembly, and when the sewage in the diversion area 1 needs to be regulated and stored in rainy days, the first on-off switch 6 is closed at the moment, and as the gas pipe is communicated with the outside, the sewage level in the diversion area 1 continuously rises and flows into the buffer area 2 through the buffer port under the action of self gravity; and when the rainfall is finished, the first on-off switch 6 is in an open state, the air source charges compressed air into the buffer area 2 through the air delivery pipe, and at the moment, the sewage in the buffer area 2 flows into the diversion area 1 through the drain pipe 9 under the action of air pressure and is discharged through the water outlet pipe 4.
In this embodiment, the first on-off switch, the second on-off switch and/or the third on-off switch may be one of the following switches: a gate, valve, pinch valve, or flexible shut-off device; the present invention is not limited thereto, and in other words, the present invention is applicable to any on-off switch that can control the flow of the sewage from the pipe orifice, and is within the scope of the present invention.
Example two
As a supplementary embodiment of the first embodiment of the present application, on the basis of the first embodiment of the present application, the second embodiment provided by the present application further includes a rain gauge and a controller, the rain gauge is in signal connection with the controller and is used for monitoring a rainfall signal, and the controller is used for controlling the first on-off switch and the second on-off switch to operate according to the rainfall signal. As a control manner of the controller, it may be: when a clear day signal is monitored, the first on-off switch is controlled to be turned on, at the moment, sewage in a clear day sequentially flows into a downstream pipeline or a natural water body through the diversion area 1 and the water outlet pipe, or sewage in the buffer area 2 flows into the diversion area 1 through the water outlet pipe or a circulation pipe opening and then is discharged from the diversion area 1 through the water outlet pipe; when a signal in rainy days is monitored, the first on-off switch is controlled to be closed and/or the second on-off switch is controlled to be opened, and at the moment, sewage flows into the buffer area 2 through the flow dividing area 1 and the drain pipe or the flow pipe opening in sequence to be stored.
Further, the second embodiment may further include a liquid level meter for monitoring a liquid level signal in the diversion area 1 and/or the buffer area 2, and the controller receives the liquid level signal transmitted by the liquid level meter and a rainfall signal monitored by the rain gauge, and comprehensively controls the first on-off switch and the second on-off switch to operate. As a control manner of the controller, it may be: when a clear day signal is monitored, the first on-off switch and the second on-off switch are controlled to be turned on, and at the moment, dirty water in a clear day flows into a downstream pipeline through the diversion area 1 and the water outlet pipe in sequence; when a rainy day signal is monitored, the first on-off switch is controlled to be closed and the second on-off switch is controlled to be opened, the liquid level height in the buffer area 2 is continuously increased, when the liquid level threshold is reached, the first on-off switch is controlled to be opened so as to discharge partial sewage in the buffer area 2, and when the liquid level height of the buffer area 2 is reduced to a certain liquid level threshold, the first on-off switch is continuously controlled to be closed and the second on-off switch is continuously controlled to be opened so as to perform circular operation.
Those skilled in the art will understand that the control manner of the controller is only an exemplary control manner of the second embodiment, and is not limited thereto, and those skilled in the art can make adaptive adjustment or modification to the control manner according to the actual working condition, and this embodiment is not limited thereto, and it is understood that the control manner is still within the scope of the application and protection of the present application.
In summary of examples 1-2, it can be concluded that:
firstly, when the sewage is required to be regulated and stored in rainy days, the first on-off switch is in a closed state, and at the moment, the sewage flows into the buffer area through the regulating and storing assembly under the action of self gravity along with the continuous rising of the sewage liquid level in the shunting area; when the rainfall is finished, the first on-off switch is in an open state, and at the moment, the sewage in the buffer area flows into the flow distribution area under the action of the storage and regulation assembly and is discharged by the water outlet pipe, so that the technical defects that the serious pollution of natural water is easily caused in rainy days, or the treatment pressure of a sewage treatment facility is overlarge, the resource is wasted and the like in the structural design that the discharged sewage directly enters a sewage discharge pipeline to be output in the prior art are effectively avoided, the technical effect of regulating and storing the sewage when the sewage discharge is not needed can be achieved, and the device has the characteristics of simple structure, convenience in operation and wide applicability;
the sewage buffer tank integrates the flow dividing area and the buffer area on one tank body, so that the occupied area is reduced compared with the separated independent design, the whole tank body can be integrally installed and debugged in a factory, and the sewage buffer tank is installed on site after delivery is qualified, so that the construction and installation time is greatly saved, and the sewage buffer tank has the characteristic of low cost.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A sewage buffer tank, comprising:
the tank body is provided with a shunting area and a buffer area, the shunting area is provided with a water inlet pipe and a water outlet pipe, and the buffer area is provided with a buffer port;
the first on-off switch is embedded in the water outlet pipe and is used for controlling the on-off of water flow at the water outlet pipe;
the second on-off switch is embedded in the buffer port and used for controlling the on-off of water flow at the buffer port;
when the first on-off switch is closed, the second on-off switch is opened, and sewage flowing into the shunting area from the water inlet pipe flows into the buffering area through the buffering opening;
when the first on-off switch is turned on, sewage flowing into the diversion area from the water inlet pipe is discharged into a downstream pipeline or a natural water body through the water outlet pipe, and/or sewage in the buffer area flows into the diversion area through the buffer opening.
2. The sewage surge tank of claim 1, wherein:
the shunting area and the buffering area are of tank body structures integrally formed by glass steel materials.
3. The sewage surge tank of claim 1, wherein:
the bottom elevation of the buffer opening is equal to or higher than the pipe top elevation of the water outlet pipe;
the sewage buffer tank still includes:
the draining pump is arranged at the bottom of the buffer area;
and the water inlet pipe orifice of the water discharge pipe is communicated with the drainage pump, and the water outlet pipe orifice of the water discharge pipe is communicated with the buffer port.
4. The sewage surge tank of claim 1, wherein:
the bottom elevation of the buffer opening is equal to or higher than the pipe top elevation of the water outlet pipe;
the sewage buffer tank still includes:
the water inlet pipe orifice of the water outlet pipe is positioned at the bottom of the buffer area, and the water outlet pipe orifice of the water outlet pipe is communicated with the buffer opening;
the gas pipe is arranged in the buffer area and communicated with the outside;
and the air source is connected with the air conveying pipe.
5. The sewage buffer tank of claim 3 or 4, wherein:
the drain pipe is L-shaped.
6. The wastewater surge tank of any of claims 1-4, wherein:
the first on-off switch is one of the following switches: a gate, a valve, a pinch valve, or a flexible shut-off device.
7. The wastewater surge tank of any of claims 1-4, wherein:
the first on-off switch is one of the following switches: a gate, a valve, a pinch valve, or a flexible shut-off device.
8. The wastewater surge tank of claim 1, further comprising:
and the liquid level switch is arranged in the buffer area.
9. The wastewater surge tank of claim 8, further comprising:
and the controller is used for controlling the first on-off switch, the second on-off switch and/or the liquid level switch.
10. A drainage system, characterized in that the drainage system comprises:
the wastewater surge tank of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361809.2U CN215802087U (en) | 2021-02-09 | 2021-02-09 | Sewage buffer tank and drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361809.2U CN215802087U (en) | 2021-02-09 | 2021-02-09 | Sewage buffer tank and drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215802087U true CN215802087U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120361809.2U Expired - Fee Related CN215802087U (en) | 2021-02-09 | 2021-02-09 | Sewage buffer tank and drainage system |
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| Country | Link |
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| CN (1) | CN215802087U (en) |
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2021
- 2021-02-09 CN CN202120361809.2U patent/CN215802087U/en not_active Expired - Fee Related
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