CN210216683U - Rain and sewage flow dividing device - Google Patents
Rain and sewage flow dividing device Download PDFInfo
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- CN210216683U CN210216683U CN201920267110.2U CN201920267110U CN210216683U CN 210216683 U CN210216683 U CN 210216683U CN 201920267110 U CN201920267110 U CN 201920267110U CN 210216683 U CN210216683 U CN 210216683U
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Abstract
The utility model discloses a distribution of rain and sewage device, its characterized in that includes: the device comprises a first box body, a second box body, a sewage intercepting lifting basket, an uncovering lifting handle, a rainwater and sewage inlet, a hinge, a liquid level communicating vessel, a rainwater outlet, a floating ball combination and a sewage outlet; rain sewage enters the first box body through the rain sewage inlet, enters the first box body bottom through the sewage intercepting lifting basket, enters the second box body through the liquid communicating vessel, and when the rain does not fall, the sewage in the pipeline, such as bath water and washing machine drainage water, enters the device, the floating ball of the device sinks, the sewage port is opened, the sewage enters the sewage treatment plant through the pipeline, at the early stage of rainfall, the floating ball is not completely lifted, the sewage port is still not closed, initial rainwater with sludge can be collected, the rainwater is discharged into the sewage outlet, when the rain falls, the floating ball rises, the weir gate is automatically opened, rainwater with low pollution concentration is discharged to the municipal rainwater pipeline, so that the pollution influence of the natural water body on the sewage is avoided or reduced, and the stable improvement of the water quality of the natural water body is realized.
Description
Technical Field
The utility model relates to a diverging device especially relates to a distribution of rain and sewage device.
Background
The rain and sewage separating device is used for separating rain water and sewage. Since the urban sewage is directly discharged into rivers after being collected, pollution is caused, and therefore collection and treatment are needed, and in rainy days, rainwater does not need to be treated and flows into a sewage treatment system.
At present, current distribution of rain and sewage device simple structure, mainly by circular or square pit shaft, it constitutes to set up an overflow plate washer before the delivery port, its shortcoming is, in case meet the season that the rainwater is many in the city, the unable self-closing of drain, the rainwater is when overflowing the outside emission of overflow plate washer, also can get into sewage pipe network through the drain, dilute sewage concentration, sewage treatment capacity has been increased, greatly increased sewage treatment plant's running cost, often can appear the drainage, blowdown pressure, in order to solve this problem, various sewage devices have also appeared in the drainage pipe network system, but the effect is not very obvious, the emission of control sewage that can not be intelligent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art not enough, provide a distribution of rain and sewage device, disclose its concrete device and the weir gate switch controller circuit of floater combination, its pipeline blowdown from two differences of its control that can further intelligence through the position of water level.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
a distribution device for rain and sewage, characterized by comprising: the rainwater and sewage collecting box comprises a first box body, a second box body, a rainwater and sewage inlet, a rainwater outlet and a sewage outlet.
As a preferred scheme of the utility model, the first box body comprises an SUS304 dirt-intercepting basket, a cover-opening handle, a rain sewage inlet, an SUS304 hinge and a liquid level communicating vessel; the second box body comprises a liquid level communicating vessel, a rainwater outlet, an SUS304 floating ball combination and a sewage outlet; rain sewage enters the first box body through the rain sewage inlet, enters the first box body bottom through the sewage intercepting lifting basket, enters the second box body through the liquid communicating vessel, and when the rain does not fall, the sewage in the pipeline, such as bath water and washing machine drainage water, enters the device, the floating ball of the device sinks, the sewage port is automatically opened, the sewage enters the sewage treatment plant through the pipeline, at the early stage of rainfall, the floating ball is not completely lifted, the sewage port is still not closed, the initial rainwater with sludge can be collected, the sewage is discharged into the sewage outlet, when the rain falls, the floating ball rises, the weir gate is automatically opened, the rainwater with low pollution concentration is discharged to the municipal rainwater pipeline, the pollution influence of the sewage on the natural water body is avoided or reduced, and the stable improvement of the water quality of the natural water body is realized.
As a preferred scheme of the utility model, the dirt-intercepting lifting basket is of a diamond-shaped filter screen structure, adopts SUS304 material, prevents rust and corrosion, and is positioned below the rain and sewage inlet; can get into sewage backbone net when a lot of bulky rubbish flows into sewage pipes through rain sewage entry, finally gets into sewage treatment plant, can increase blowdown pressure, so need block when getting into sewage pipes, it is exactly a filter screen to cut dirty hand-basket, intercepts bulky rubbish when rain sewage flows in, also is the container that can store rubbish simultaneously.
As an optimized scheme of the utility model, the hinge structure adopts the SUS304 material, prevents the rust and corrosion, is located the box top, connects first box and second box upper cover, and first box upper cover is equipped with the handle of uncapping, is located and cuts dirty basket top, cuts dirty basket and intercepts the great rubbish of volume and stores rubbish simultaneously, and the active nature of first box upper cover and second box upper cover has been guaranteed to the SUS304 hinge structure, and the handle of uncapping makes the upper cover open or the closed easier operation.
As the utility model discloses a preferred scheme, the liquid level linker is located first box and links to each other with the second bottom half, and rain sewage gets into first bottom half after the basket filters through cutting dirty, flows into the liquid level linker, gets into the second box through it.
As a preferred scheme of the utility model, the floater combination includes floater, pivot fulcrum, motion pole, signal reception device, controller, and floater, pivot fulcrum, motion pole adopt SUS304 material, and the floater is through pivot fulcrum up-and-down motion trigger signal reception device, opens or closes the weir gate switch after the controller signal reception.
As the utility model discloses a preferred scheme, the last spacing and lower spacing of the protruding dog control floater combination in pivot fulcrum both sides, the floater is through pivot fulcrum up-and-down motion, floats and carries on spacingly to the dog position, and this position is trigger signal receiving arrangement's position.
As the utility model discloses a preferred scheme, the floater combination, floater 1 are located the rainwater outlet below, control rainwater outlet weir gate switch, and floater 2 is located the outlet of sewer top, control sewage outlet weir gate switch, and floater 1 is different with floater 2's upper and lower position, and the control signal of signal receiver transmission is different: the device comprises a signal receiver which is triggered when a floating ball 1 moves upwards, a signal receiver which is triggered when the floating ball 1 moves downwards, a signal receiver which is triggered when the floating ball 2 moves upwards, a signal receiver which is triggered when the floating ball 2 moves downwards, a sewage weir gate switch which is triggered when the floating ball 2 moves downwards, and a signal receiver which is triggered when the floating ball 2 moves downwards.
As a preferred embodiment of the present invention, the barrier gate switch controller of the floating ball combination includes a transistor VT1, a transistor VT2, a resistor R1, a resistor RP1, a resistor R2, a resistor RP2, a resistor R3, a resistor RP3, a resistor R4, a resistor RP4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a bistable trigger circuit IC555, a diode VD1, a diode VD2, a diode VD3, a rectifier U, a relay K, a transformer T1, a transformer T2, a fuse FU1, a fuse FU2, a switch KI-1, a switch KI-2, a switch K2-1, a switch K2-2, a signal lamp LED1, and a signal lamp LED 2.
As a preferable embodiment of the present invention, the connection relationship of the weir gate switch controller of the floating ball combination is that the transistor VT1 port 1 is connected to the signal receiver SB1, the port 2 is connected to one end of the resistor R1, the port 3 is connected to the resistor R2, the resistor R3, the resistor R4, the IC555 port 6, the transistor VT2 port 2, the port 4 is connected to the transistor VT2 port 4, the IC555 port 1 capacitor C1, the capacitor C2, the resistor RP4, the relay K, the capacitor C4, the rectifier U port 3, the resistor R1, the resistor RP1, the resistor RP1, the resistor RP2, the resistor R3, the resistor R4, the IC port 555 port 4, the IC555 port 7, the resistor RP3, the resistor RP3, the capacitor C4, the rectifier U port 1, the resistor RP2, the resistor R2, the signal receiver SB2, the IC port SB 363, the IC555 port 3, the port 5 of IC555 is connected with the other end of a capacitor C1, the port 3 is connected with one end of a diode VD2 at one end of the diode VD2, one end of the diode VD3 is connected with the other end of a resistor RP3 at the other end of the capacitor C3, the other end of a diode VD2 is connected with the other end of a resistor RP4 at the other end of the capacitor C2, the other end of the diode VD3 is connected with the other end of a relay K, the port 2 of a rectifier U port 4 is connected with two interfaces at one end of a transformer T1, two interfaces at the other end of the transformer T1 are connected with a fuse 1, one end of a fuse FU2, one end of a switch KI-1, one end of a transformer T2 at one end of a switch KI-1, the other end of the fuse FU1 is connected with a power supply, the other end of the switch KI-1 is connected, the other end of the switch K2-1 is connected with the other end of the LED1, the other end of the switch K2-2 is connected with the other end of the LED2, one end of the switch KI-1 is connected with one end of the switch K2-1, and one end of the switch KI-2 is connected with one end of the switch K2-2.
As an optimized scheme of the utility model, the weir gate switch controller of floater combination contains alarm signal generator, and the weir gate switch controller of floater combination controls opening or closing of weir gate, and the alarm uses when the automatic control fails, according to signal lamp H1, the trouble is confirmed to H2.
The utility model discloses an useful part lies in:
the utility model discloses can filter rain sewage through cutting dirty hand-basket, the floater composite set signal receiving arrangement controller can be intelligent open the dirty drain pipe of rain and close and control, and the warning generator of controller can monitor the state of the device's operation.
When the rainwater is not rained, sewage in the pipeline, such as bathing water, washing machine drainage and other water bodies enter the device, the floating ball of the device sinks, the sewage port is automatically opened, the sewage enters the sewage treatment plant through the pipeline, the floating ball is not completely lifted in the early stage of rainfall, the sewage port is still not closed, initial rainwater with sludge can be collected and is discharged into a sewage outlet, when the rainwater is heavy rain, the floating ball is lifted, the weir gate is automatically opened, rainwater with low pollution concentration is discharged into a municipal rainwater pipeline, the natural water body is prevented from being influenced or the pollution of the sewage is reduced, the water quality of the natural water body is stably improved, and the treatment efficiency of the sewage treatment plant is reduced.
Drawings
FIG. 1 is a schematic view of a case of the present invention;
FIG. 2 is a schematic view of the rain sewage inlet and outlet of the present invention;
FIG. 3 is a schematic view of the rain and sewage diversion device of the present invention;
fig. 4 is a schematic diagram of a signal receiver according to the present invention;
fig. 5 is a schematic view of the up-and-down movement of the floating ball 1 of the present invention;
fig. 6 is a schematic view of the up-and-down movement of the floating ball 2 of the present invention;
fig. 7 is a schematic diagram of an alarm signal generator in the controller of the present invention;
the device comprises a first box body, a second box body, a rainwater and sewage inlet, a rainwater outlet, a sewage outlet, an SUS304 sewage intercepting basket, a cover opening handle, an SUS304 hinge and a liquid level communicating vessel; the rainwater outlet, SUS304 floating ball combination, signal receiver SB1, signal receiver SB2, wherein the dirt-blocking basket, hinge, floating ball combination are made of SUS 304.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1, a distribution device for rain and sewage comprises: the rainwater and sewage collecting box comprises a first box body, a second box body, a rainwater and sewage inlet, a rainwater outlet and a sewage outlet.
As another embodiment of the present invention, as shown in fig. 2, the sewage outlet is located below the rain outlet, and the rain-sewage inlet is located on the opposite surface of the rain outlet and the sewage outlet.
As another embodiment of the present invention, as shown in fig. 3, the first box body includes an SUS304 dirt-intercepting basket, a lid-opening handle, a rain sewage inlet, an SUS304 hinge, and a liquid level communicating vessel; the second box body comprises a liquid level communicating vessel, a rainwater outlet, an SUS304 floating ball combination and a sewage outlet;
furthermore, the dirt intercepting lifting basket is of a diamond-shaped filter screen structure, is made of SUS304, prevents rusting and corrosion, and is positioned below the rainwater and sewage inlet; can get into sewage backbone net when a lot of bulky rubbish flows into sewage pipes through rain sewage entry, finally gets into sewage treatment plant, can increase blowdown pressure, so need block when getting into sewage pipes, it is exactly a filter screen to cut dirty hand-basket, intercepts bulky rubbish when rain sewage flows in, also is the container that can store rubbish simultaneously.
Further, the hinge structure adopts SUS304 material, prevents the rust and corrosion, is located the box top, connects first box and second box upper cover, and first box upper cover is equipped with the handle of uncapping, is located and cuts dirty hand-basket top, cuts dirty basket and intercepts the great rubbish of volume and store rubbish simultaneously, and the motivity of first box upper cover and second box upper cover has been guaranteed to SUS304 hinge structure, and the handle of uncapping makes the upper cover open or the closed easier operation.
Furthermore, the liquid level communicating vessel is located and first box and second bottom of the case portion links to each other, and rain sewage gets into first bottom of the case portion after filtering through intercepting dirty hand-basket, flows into the liquid level communicating vessel, gets into the second box through it.
Further, rain sewage enters the first box body through the rain sewage inlet, enters the bottom of the first box body through the sewage intercepting lifting basket, enters the second box body through the liquid communicating device, when rain does not occur, sewage in the pipeline, such as bath water, washing machine drainage and other water bodies, enters the device, the floating ball of the device sinks, the sewage port is automatically opened, the sewage enters the sewage treatment plant through the pipeline, the floating ball does not completely rise in the early stage of rain, the sewage port is still not closed, initial rainwater with sludge can be collected, the rainwater is discharged into the sewage outlet, when rain occurs, the floating ball rises, the weir gate is automatically opened, rainwater with low pollution concentration is discharged into the municipal rainwater pipeline, and therefore the natural water body is free of pollution or the influence of pollution of the sewage is reduced, and the water quality of the natural water body is stably improved.
As another embodiment of the present invention, as shown in fig. 4, the signal receiver of the floating ball 1 is located below the rain outlet, the signal receiver of the floating ball 2 is located above the sewage outlet, the positions of the two are different, and the control signal transmitted to the controller is different.
As another embodiment of the utility model, as shown in fig. 5, the floater combination includes floater, pivot point, motion bar, signal receiver, controller, floater, pivot point, dog, and the motion bar adopts the SUS304 material, and the floater is through pivot point up-and-down motion trigger signal receiver, opens or closes the weir gate switch after the controller signal reception, and floater 1 is located the rainwater outlet below, controls rainwater outlet weir gate switch, and the floater 1 is different with floater 2's upper and lower position, and the control signal of signal receiver transmission is different: the device comprises a signal receiver, a rotating shaft fulcrum, a floating ball and a signal receiver, wherein the signal receiver is triggered when the floating ball 1 moves upwards, the signal receiver is triggered when the floating ball 1 moves downwards, the signal receiver transmits signals to the state that the rainwater weir gate switch is closed, the upper limit and the lower limit of a floating ball combination are controlled by protruding stop blocks on two sides of the rotating shaft fulcrum, the floating ball moves up and down through the rotating shaft fulcrum, the floating ball floats to the stop.
As another embodiment of the present invention, as shown in fig. 6, the floating ball assembly includes a floating ball, a pivot point, a moving rod, a signal receiving device, a controller, a floating ball, a pivot point, and a stop, the moving rod is made of SUS304, the floating ball moves up and down through the pivot point to trigger the signal receiving device, the weir gate switch is opened or closed after the controller receives the signal, the floating ball assembly 2 is located above the sewage outlet to control the weir gate switch of the sewage outlet, the floating ball 1 and the floating ball 2 are different in upper and lower positions, and the control signal transmitted by the signal receiver is different; the floating ball 2 triggers the signal receiver when moving upwards, transmits signals to the closed sewage weir gate switch, triggers the signal receiver when moving downwards, transmits signals to the open rainwater weir gate switch, the protruding stop blocks on the two sides of the pivot point control the upper limit and the lower limit of the floating ball combination, the floating ball floats to the stop block position for limiting through the up-and-down movement of the pivot point, and the position is the position of the trigger signal receiving device.
As another embodiment of the present invention, the barrier gate switch controller of the floating ball combination as shown in fig. 7 includes a transistor VT1, a transistor VT2, a resistor R1, a resistor RP1, a resistor R2, a resistor RP2, a resistor R3, a resistor RP3, a resistor R4, a resistor RP4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a bistable trigger circuit IC555, a diode VD1, a diode VD2, a diode VD3, a rectifier U, a relay K, a transformer T1, a transformer T2, a fuse FU1, a fuse FU2, a switch KI-1, a switch KI-2, a switch K2-1, a switch K2-2, a signal lamp LED1, and a signal lamp LED 2.
Furthermore, the connection relationship of the barrier gate switch controller of the floating ball combination is that a port 1 of the transistor VT1 is connected with a signal receiver SB1, one end of a port 2 connecting resistor R1, one end of a port 3 connecting resistor R2, one end of a resistor R3, one end of a resistor R4, one end of an IC555 port 6 transistor VT2, a port 4 is connected with a port 4 of the transistor VT2, a port 1 of an IC555 port 1 capacitor C1, one end of a resistor C2, one end of a resistor RP4, one end of a relay K, one end of a capacitor C4, one end of a rectifier U port 3, the other end of the resistor R1 is connected with one end of a resistor RP1, the other end of the resistor RP2, the other end of the resistor R3, the other end of the resistor R4, another end of the IC555 port 7 of the IC port 7, one end of the resistor RP 867, one end of the resistor RP4, the other end of the resistor RP2, the other end of the VT2 is connected with, the port 3 is connected with one end of a diode VD1, one end of a diode VD2, one end of a diode VD3, the other end of the diode VD1 is connected with the other end of a capacitor C3 at the other end of a resistor RP3, the other end of the diode VD2 is connected with the other end of a capacitor C2 at the other end of a resistor RP4, the other end of the diode VD3 is connected with the other end of a relay K, the port 2 of a rectifier U is connected with two interfaces at one end of a transformer T1, the two interfaces at the other end of the transformer T1 are connected with a fuse FU1, one end of a fuse FU 5 is connected with a switch KI-1, one end of the switch KI-2 is connected with one end of a transformer T2, the other end of the fuse FU1 is connected with a power supply, the other end of the switch KI-1 is connected with a weir gate, the other end of the switch, the other end of the switch K2-2 is connected with the other end of the signal lamp LED2, one end of the switch KI-1 is connected with one end of the switch K2-1, and one end of the switch KI-2 is connected with one end of the switch K2-2.
Further, the barrier gate switch controller of the floating ball combination comprises an alarm signal generator, the barrier gate switch controller of the floating ball combination controls the opening or closing of the barrier gate, the alarm signal generator is used when the automatic control fails, the switch K2-1, the switch K2-2 controls the signal lamp LED1 and the signal lamp LED2, and the fault is determined according to the signal lamp LED1 and the signal lamp LED 2.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The present invention is not limited to the above description of the embodiments, and those skilled in the art should be able to make modifications and alterations without creative work on the basis of the present invention.
Claims (5)
1. A distribution device for rain and sewage, characterized by comprising: the rainwater and sewage collecting box comprises a first box body, a second box body, a rainwater and sewage inlet, a rainwater outlet and a sewage outlet; the first box body comprises an SUS304 sewage intercepting basket, an uncovering handle, a rainwater and sewage inlet, an SUS304 hinge and a liquid level communicating vessel; the sewage intercepting lifting basket is of a diamond-shaped filter screen structure, is made of SUS304 and is positioned below the rainwater and sewage inlet; the SUS304 hinge is positioned at the top of the box body and is used for connecting the first box body and the upper cover of the second box body, and the upper cover of the first box body is provided with an uncovering handle; the second box body comprises a liquid level communicating vessel, a rainwater outlet, an S304 floating ball combination and a sewage outlet; the liquid level communicating vessel is positioned at the bottom of the first box body and connected with the bottom of the second box body; the floating ball combination comprises a floating ball, a rotating shaft fulcrum, a moving rod, a signal receiving device and a controller, wherein the floating ball, the rotating shaft fulcrum and the moving rod are made of SUS304 materials, the floating ball moves up and down through the rotating shaft fulcrum to trigger the signal receiving device, and the weir gate switch is turned on or turned off after the controller receives signals.
2. A distribution device according to claim 1, wherein: the upper limit and the lower limit of the floating ball combination are controlled by the convex stop blocks on two sides of the pivot point, the floating ball 1 is located below the rainwater outlet and controls the switch of the rainwater outlet weir gate, and the floating ball 2 is located above the sewage outlet and controls the switch of the sewage outlet weir gate.
3. A distribution device according to claim 1, wherein: the floating ball combined weir gate switch controller comprises a semiconductor tube VT1, a semiconductor tube VT2, a resistor R1, a resistor RP1, a resistor R2, a resistor RP2, a resistor R3, a resistor RP3, a resistor R4, a resistor RP4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a bistable trigger circuit IC555, a diode VD1, a diode VD2, a diode VD3, a rectifier U, a relay K, a transformer T1, a transformer T2, a fuse FU1, a fuse FU2, a switch KI-1, a switch KI-2, a switch K2-1, a switch K2-2, a signal lamp LED1 and a signal lamp LED 2.
4. A distribution device according to claim 1, wherein: the connection relation of the floating ball combined weir gate switch controller is that a port 1 of a semiconductor tube VT1 is connected with a signal receiver SB1, one end of a port 2 connecting resistor R1, one end of a port 3 connecting resistor R2, one end of a resistor R3, one end of a resistor R4, one end of an IC555 port 6 semiconductor tube VT2 port 2, one end of a port 4 connecting transistor VT2 port IC555 port 1 capacitor C1, one end of a capacitor C2, one end of a resistor RP4, one end of a relay K, one end of a capacitor C4, one end of a rectifier U port 3, the other end of a resistor R1 is connected with one end of a resistor RP1, the other end of a resistor RP1 is connected with a resistor R3 at the other end of a resistor R4, one end of an IC555 port 4IC port 4 capacitor C3, one end of a resistor RP3, one end of a capacitor C4 and the other end of a rectifier U port 1, the other end of a resistor RP2 is connected with the other end of, the port 3 is connected with one end of a diode VD1, one end of a diode VD2, one end of a diode VD3, the other end of the diode VD1 is connected with the other end of a capacitor C3 at the other end of a resistor RP3, the other end of the diode VD2 is connected with the other end of a capacitor C2 at the other end of a resistor RP4, the other end of the diode VD3 is connected with the other end of a relay K, the port 2 of a rectifier U is connected with two interfaces at one end of a transformer T1, the two interfaces at the other end of the transformer T1 are connected with a fuse FU1, one end of a fuse FU 5 is connected with a switch KI-1, one end of the switch KI-2 is connected with one end of a transformer T2, the other end of the fuse FU1 is connected with a power supply, the other end of the switch KI-1 is connected with a weir gate, the other end of the switch KI, the other end of the switch K2-2 is connected with the other end of the signal lamp LED2, one end of the switch KI-1 is connected with one end of the switch K2-1, and one end of the switch KI-2 is connected with one end of the switch K2-2.
5. A distribution of rain and sewage according to claim 4 wherein: the barrier gate switch controller of the floating ball combination comprises an alarm signal generator and a barrier gate switch controller of the floating ball combination, the barrier gate is controlled to be opened or closed, the alarm signal generator is used when the automatic control fails, the switch K2-1, the switch K2-2 controls the signal lamp LED1 and the signal lamp LED2, and faults are determined according to the signal lamp LED1 and the signal lamp LED 2.
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| CN201920267110.2U CN210216683U (en) | 2019-03-04 | 2019-03-04 | Rain and sewage flow dividing device |
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| CN201920267110.2U CN210216683U (en) | 2019-03-04 | 2019-03-04 | Rain and sewage flow dividing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554315A (en) * | 2020-12-08 | 2021-03-26 | 深圳翰博设计股份有限公司 | Sponge city concave greenbelt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112554315A (en) * | 2020-12-08 | 2021-03-26 | 深圳翰博设计股份有限公司 | Sponge city concave greenbelt |
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