CN113931508A - Open caisson formula garage with water drainage gas purification function - Google Patents

Open caisson formula garage with water drainage gas purification function Download PDF

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Publication number
CN113931508A
CN113931508A CN202111370937.4A CN202111370937A CN113931508A CN 113931508 A CN113931508 A CN 113931508A CN 202111370937 A CN202111370937 A CN 202111370937A CN 113931508 A CN113931508 A CN 113931508A
Authority
CN
China
Prior art keywords
garage
water
drainage
drainage pipe
collecting tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111370937.4A
Other languages
Chinese (zh)
Inventor
屈春来
施海波
张嘉宁
王庆昌
赵余
李西蒙
戴广宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei University of Engineering
Original Assignee
Hebei University of Engineering
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei University of Engineering filed Critical Hebei University of Engineering
Priority to CN202111370937.4A priority Critical patent/CN113931508A/en
Publication of CN113931508A publication Critical patent/CN113931508A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/08Garages for many vehicles
    • E04H6/12Garages for many vehicles with mechanical means for shifting or lifting vehicles
    • E04H6/18Garages for many vehicles with mechanical means for shifting or lifting vehicles with means for transport in vertical direction only or independently in vertical and horizontal directions
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F1/00Methods, systems, or installations for draining-off sewage or storm water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/42Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/42Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
    • E04H6/422Automatically operated car-parks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00Application
    • F05B2220/70Application in combination with
    • F05B2220/706Application in combination with an electrical generator
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/50Hydropower in dwellings

Abstract

The invention discloses a sunk well type garage with a water drainage and gas purification function, which comprises a garage system, a water drainage device and an exhaust device, wherein the garage system comprises a garage body, a rotary lifting device and parking spaces, the garage body is cylindrical, a plurality of layers of parking areas are arranged in the garage body from top to bottom, and a plurality of parking spaces are distributed in each layer of parking area at equal intervals; a drainage device is arranged between any two adjacent parking spaces and comprises a water collecting tank and a drainage pipe, the water collecting tank is arranged at the water inlet of the drainage pipe, the water collecting tank is arranged above the ground, a filter screen is arranged above the water collecting tank, the water outlet of the drainage pipe is communicated with the deep drainage pipe, and a one-way check valve and a hydroelectric generator are sequentially arranged at the bottom of the drainage pipe; an exhaust device is arranged on the profound drain pipe. According to the invention, the garage is connected with the deep drainage pipeline, and the drainage system and the exhaust system are added, so that the drainage of rainwater and the purification of gas are realized, and the problem of water accumulation in the garage is effectively reduced.

Description

Open caisson formula garage with water drainage gas purification function
Technical Field
The invention relates to the field of open caisson type garages, in particular to an open caisson type garage with a water drainage and gas purification function.
Background
In recent years, the quantity of motor vehicles kept is rapidly increased, and the contradiction with the construction lag of urban parking facilities is prominent, namely, the quantity of the motor vehicles is increased, and the contradiction between the supply and demand of parking spaces is prominent; secondly, planning and constructing the parking places seriously lack; thirdly, the land resources are in short supply, and the parking facilities are difficult to supply land; fourthly, the parking management system is lack of overall planning. Therefore, the scientific and reasonable full utilization of the underground space is bound to become a trend and an effective way for solving the problem of 'difficult parking'. The open caisson type garage is characterized in that the open caisson type garage adopts an assembly type technology and is used for improving the infrastructure of old communities, but the existing open caisson type garage does not consider the drainage problem of heavy rainfall and can cause the problem of water accumulation inside the garage.
Disclosure of Invention
The invention aims to provide a sunk well type garage with a water drainage and gas purification function, and solves the problem of water accumulation in the sunk well type garage.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a sunk-well type garage with a water discharging and gas purifying function, which comprises a garage system, a water discharging device and an exhaust device, wherein the garage system comprises a garage body, a rotary lifting device and parking spaces, the garage body is cylindrical, a glass top plate is fixed above the garage body, a lifting platform is arranged in the middle of the garage body, the rotary lifting device is arranged in the lifting platform, a plurality of layers of parking areas are arranged in the garage body from top to bottom, and a plurality of parking spaces are distributed in each layer of parking area at equal intervals; the drainage device is arranged between any two adjacent parking spaces and comprises a water collecting tank and a drainage pipe, the water collecting tank is installed at a water inlet of the drainage pipe, the water collecting tank is arranged above the ground, a filter screen is arranged above the water collecting tank, a water outlet of the drainage pipe is communicated with a deep drainage pipe, and a one-way check valve and a hydroelectric generator are sequentially arranged at the bottom of the drainage pipe; the deep drainage pipe is provided with the exhaust device.
The structure of the glass top plate is arranged to be convex upwards.
The one-way check valve comprises an upper shell, a lower shell, a T-shaped valve head and a spring, wherein a water inlet is formed in one end of the upper shell, the other end of the upper shell is connected with one end of the lower shell, an air outlet is formed in the other end of the lower shell, a disc-shaped part of the T-shaped valve head is tightly attached to an inner cavity of the upper shell, and a rod-shaped part of the T-shaped valve head is provided with the spring.
Exhaust apparatus includes the inlet end, gives vent to anger end, floater, telescopic link, activated carbon plate and fixed screw, one side of inlet end is equipped with fixed screw, the inlet end pass through fixed screw with deep drainage pipe connection is fixed, the opposite side of inlet end with give vent to anger the end intercommunication, the inlet end with the junction of the end of giving vent to anger is equipped with the telescopic link, the bottom of telescopic link is equipped with the floater, give vent to anger and hold inside activated carbon plate that is provided with.
The water collecting tank is in a round table shape with a wide upper part and a narrow lower part, the filter screen is erected in the water collecting tank, and a gap is reserved between the bottom of the filter screen and the bottom of the water collecting tank.
Compared with the prior art, the invention has the beneficial technical effects that:
according to the invention, according to the rainfall, when the rainfall is too large and the water collecting tank has excessive water, the garage system can move the position of the vehicle, when the vehicle dispatching system arranges the mobilized vehicle to one side of the annular garage, and a plurality of water outlets on the other side are opened according to the water quantity, so that the influence of drainage noise is reduced, and meanwhile, the timely drainage effect is realized.
According to the invention, the one-way check valve and the hydroelectric generator are added on the drainage pipeline of the drainage system to dissipate energy of water flow, so that the corrosion to the wall body of the garage is reduced;
according to the invention, the exhaust device is added to quickly purify and exhaust the redundant gas in the deep drainage pipeline, so that the deep pressure is kept to be certain;
according to the invention, the garage is connected with the deep drainage pipeline, and the drainage system and the exhaust system are added, so that the drainage of rainwater and the purification of gas are realized, and the problem of water accumulation in the garage is effectively reduced.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic structural diagram of the open caisson type garage with the functions of water drainage and gas purification;
FIG. 2 is a schematic view of a parking area;
FIG. 3 is a schematic view of the drain and vent arrangement;
FIG. 4 is a schematic structural view of a check valve;
FIG. 5 is a schematic view of the exhaust apparatus;
description of reference numerals: 1. a glass top plate; 2. a garage body; 3. a rotary lifting device; 4. a parking space; 5. a drainage device; 501. a water collection tank; 502. a drain pipe; 503. a filter screen; 504. a one-way check valve; 5041. an upper housing; 5042. a lower housing; 5043. a T-shaped valve head; 5044. a spring; 505. a hydro-generator; 6. an exhaust device; 601. an air inlet end; 602. an air outlet end; 603. a floating ball; 604. a telescopic rod; 605. an activated carbon plate; 606. fixing the screw; 7. the drain pipe is deep.
Detailed Description
As shown in fig. 1-5, a sinking well formula garage with water drainage and gas purification function, including the garage system, drainage device 5 and exhaust apparatus 6, the garage system includes garage body 2, gyration elevating gear 3 and parking stall 4, garage body 2 is cylindrical, 2 tops in the garage body are fixed with glass roof 1, glass roof 1 forms the door pavilion of stopping, the middle part of garage body 2 is equipped with lift platform, install gyration elevating gear 3 in the lift platform, the inside from the top down of garage body 2 is provided with the multilayer parking district, the equipartition spaced cloth in every layer parking district has a plurality of parking stalls 4, be equipped with logical long dead lever in the garage, be used for consolidating multilayer parking district and lift platform. The center of the garage body 2 is a set of rotary lifting device which integrates the functions of translation, lifting and 360-degree rotation, a charging system, an access system, a vehicle dispatching system and the like form an integrated intelligent management system through the internet information technology, and the integrated intelligent management system is uniformly connected into an area parking information management platform and shares data with dynamic traffic information networking, so that the parking information networking joint control is realized. When parking, the vehicle enters a parking stall, a lifting platform is arranged below the parking stall, the lifting platform automatically rotates to transport downwards through a rotary lifter 3, and the vehicle is intelligently controlled and positioned to be parked on an underground vacant parking space; when taking out the vehicle, the vehicle dispatching system controls the rotary lifting device 3 to take out the corresponding vehicle by inputting the license plate number or swiping the card. Access to and from the vehicle is prior art and can be readily implemented by those skilled in the art in light of the above description.
A drainage device 5 is arranged between any two adjacent parking spaces 4, the drainage device 5 comprises a water collection tank 501 and a drainage pipe 502, the water collection tank 501 is mounted at the water inlet of the drainage pipe 502, the water collection tank 501 is arranged above the ground, a filter screen 503 is arranged in the water collection tank 501, the water outlet of the drainage pipe 502 is communicated with a deep drainage pipe 7, and a one-way check valve 504 and a hydroelectric generator 505 are sequentially arranged at the bottom of the drainage pipe 502; an exhaust device 6 is arranged on the deep drainpipe 7.
In this implementation, glass roof 1 sets up to the epirelief, make the water naturally flow down, assemble water in the water catch bowl 501, filter screen 503 in the water catch bowl 501 can filter the leaf, impurity such as grit, the water that filters promotes hydroelectric generator 505 after passing through one-way check valve 504 through drain pipe 502 and generates electricity, it carries out the energy dissipation with rivers to add hydroelectric generator 505, less erosion to the garage wall body, can store electric power in the battery simultaneously, be used for the garage illumination, rivers behind the energy dissipation go into profound drain pipe 7, foul gas in profound drain pipe 7 is discharged after exhaust apparatus 6 purifies, it is certain to keep profound drain pipe 7 pressure.
Specifically, referring to fig. 4, the one-way check valve includes an upper housing 5041, a lower housing 5042, a T-shaped valve head 5043, and a spring 5055, wherein a water inlet is provided at one end of the upper housing 5041, the other end of the upper housing 5041 is connected to one end of the lower housing 5042, an air outlet is provided at the other end of the lower housing 5042, a disk-shaped member of the T-shaped valve head 5043 is closely attached to an inner cavity of the upper housing 5041, and a rod-shaped member of the T-shaped valve head 5043 is provided with the spring 5055.
The action process of this embodiment is that water flow impacts the T-shaped valve head 5043, the compression spring 5055 enables the water flow to flow out in one direction, and the one-way check valve 504 prevents the water flow from flowing back due to pressure and protects the hydro-generator.
Specifically, referring to fig. 5, the exhaust device 6 includes an air inlet 601, an air outlet 602, a floating ball 603, a telescopic rod 604, an activated carbon plate 605 and a fixing screw 606, the fixing screw 606 is disposed on one side of the air inlet 601, the air inlet 601 is fixedly connected to the deep water drainage pipe 7 through the fixing screw 606, the other side of the air inlet 601 is communicated with the air outlet 602, the telescopic rod 604 is disposed at the connection position of the air inlet 601 and the air outlet 602, the floating ball 603 is disposed at the bottom of the telescopic rod 604, and the activated carbon plate 605 is disposed inside the air outlet 602.
Exhaust apparatus 6 installs on profound drain pipe 7 through fixed screw 606 in this implementation, and foul gas flows in through inlet end 601, promotes the floater 603 and rises, and then promotes telescopic link 604 and open, makes gaseous entering activated carbon plate 605 purify the back, discharges by the end 602 of giving vent to anger, and floater 603 can drive telescopic link 604 descend after the gas discharge, closes the air admission.
Specifically, referring to fig. 3, the water collection tank 501 is a truncated cone shape with a wide top and a narrow bottom, the filter screen 503 is erected in the water collection tank 501, and a gap is left between the bottom of the filter screen 503 and the bottom of the water collection tank 501.
In this embodiment, the water collecting tank 501 is disposed on the ground, so that the water collecting tank is convenient to clean and maintain, and the circular truncated cone-shaped structure can enable water flow to be concentrated quickly.
The using process of the invention is as follows:
first, the first embodiment of the present invention is used in areas with low daily drainage, or precipitation. Glass roof 1 sets up to the epirelief, make the water naturally flow down, assemble water in the water catch bowl 501, filter screen 503 in the water catch bowl 501 can filter the leaf, impurity such as grit, the water that has filtered passes through behind the one-way check valve 504 that promotes hydroelectric generator 505 electricity generation of drain pipe 502 flow through, it carries out the energy dissipation with rivers to add hydroelectric generator 505, less erosion to the garage wall body, simultaneously can store electric power in the battery, be used for the garage illumination, rivers behind the energy dissipation go into deep tomb drain pipe 7, foul gas in deep tomb drain pipe 7 is discharged after exhaust apparatus 6 purifies, it is certain to keep deep tomb drain pipe 7 pressure.
The second embodiment of the present invention is used in a special period where rainfall is large, or in a region where rainfall is large throughout the year. When external rainfall was too big, when the water catch bowl water was too much, the drainage noise produced resonance and can lead to the potential safety hazard, and at this moment, vehicle dispatch system will mobilize the vehicle and settle one side in annular garage, closes the check valve of placing the vehicle side simultaneously, and the garage system carries out the position through gyration elevating gear with the vehicle and moves, opens a plurality of check valves of another side according to the water yield size, reduces the influence of drainage noise, realizes timely drainage effect.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.

Claims (5)

1. The utility model provides a sinking well formula garage with clean gas function of drainage which characterized in that: the garage comprises a garage system, a drainage device (5) and an exhaust device (6), wherein the garage system comprises a garage body (2), a rotary lifting device (3) and parking spaces (4), the garage body (2) is cylindrical, a glass top plate (1) is fixed above the garage body (2), a lifting platform is arranged in the middle of the garage body (2), the rotary lifting device (3) is installed in the lifting platform, a plurality of layers of parking areas are arranged in the garage body (2) from top to bottom, and a plurality of parking spaces (4) are distributed in each layer of parking area at equal intervals; the drainage device (5) is arranged between any two adjacent parking spaces (4), the drainage device (5) comprises a water collection tank (501) and a drainage pipe (502), the water collection tank (501) is installed at a water inlet of the drainage pipe (502), the water collection tank (501) is arranged above the ground, a filter screen (503) is arranged above the water collection tank (501), a water outlet of the drainage pipe (502) is communicated with a deep drainage pipe (7), and a one-way check valve (504) and a hydroelectric generator (505) are sequentially arranged at the bottom of the drainage pipe (502); the deep drainage pipe (7) is provided with the exhaust device (6).
2. The open caisson type garage with the water and gas draining function of claim 1, wherein: the structure of the glass top plate (1) is arranged to be convex upwards.
3. The open caisson type garage with the water and gas draining function of claim 1, wherein: the one-way check valve comprises an upper shell (5041), a lower shell (5042), a T-shaped valve head (5043) and a spring (5055), wherein a water inlet is formed in one end of the upper shell (5041), the other end of the upper shell (5041) is connected with one end of the lower shell (5042), an air outlet is formed in the other end of the lower shell (5042), a disc-shaped part of the T-shaped valve head (5043) is tightly attached to an inner cavity of the upper shell (5041), and a rod-shaped part of the T-shaped valve head (5043) is provided with the spring (5055).
4. The open caisson type garage with the water and gas draining function of claim 1, wherein: exhaust apparatus (6) include inlet end (601), give vent to anger end (602), floater (603), telescopic link (604), activated carbon board (605) and fixed screw (606), one side of inlet end (601) is equipped with fixed screw (606), inlet end (601) pass through fixed screw (606) with deep punk drain pipe (7) are connected fixedly, the opposite side of inlet end (601) with give vent to anger end (602) intercommunication, inlet end (601) with the junction of giving vent to anger end (602) is equipped with telescopic link (604), the bottom of telescopic link (604) is equipped with floater (603), give vent to anger end (602) inside is provided with activated carbon board (605).
5. The open caisson type garage with the water and gas draining function of claim 1, wherein: the water collecting tank (501) is in a round table shape with a wide upper part and a narrow lower part, the filter screen (503) is erected in the water collecting tank (501), and a gap is reserved between the bottom of the filter screen (503) and the bottom of the water collecting tank (501).
CN202111370937.4A 2021-11-18 2021-11-18 Open caisson formula garage with water drainage gas purification function Pending CN113931508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111370937.4A CN113931508A (en) 2021-11-18 2021-11-18 Open caisson formula garage with water drainage gas purification function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111370937.4A CN113931508A (en) 2021-11-18 2021-11-18 Open caisson formula garage with water drainage gas purification function

Publications (1)

Publication Number Publication Date
CN113931508A true CN113931508A (en) 2022-01-14

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2259597Y (en) * 1995-06-28 1997-08-13 正音电器股份有限公司 Micro-drainage apparatus
CN104110150A (en) * 2014-07-08 2014-10-22 北京工业大学 Underground multi-layer annular vertical shaft type stereoscopic garage
CN206635922U (en) * 2017-04-18 2017-11-14 杭州中美埃梯梯泵业有限公司 A kind of family expenses remove the sewage water lifter of stink
WO2018112635A1 (en) * 2016-12-20 2018-06-28 Pawluski Barton Francis Apparatus for storing airplanes
CN108331140A (en) * 2018-01-10 2018-07-27 河海大学 A kind of construction and device for eliminating deep layer drainage system interception air
CN110056069A (en) * 2019-04-27 2019-07-26 励土峰 A kind of high pressure flood control sewer drainage system
CN210543978U (en) * 2019-08-19 2020-05-19 肖红 Energy-concerving and environment-protective exhaust gas purification device
CN111502360A (en) * 2020-04-25 2020-08-07 深圳市嘉盛建筑工程有限公司 Flood control drainage underground garage
JP2021074702A (en) * 2019-11-04 2021-05-20 楽 康Le, Kang Siphon type drainage system for underground garage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2259597Y (en) * 1995-06-28 1997-08-13 正音电器股份有限公司 Micro-drainage apparatus
CN104110150A (en) * 2014-07-08 2014-10-22 北京工业大学 Underground multi-layer annular vertical shaft type stereoscopic garage
WO2018112635A1 (en) * 2016-12-20 2018-06-28 Pawluski Barton Francis Apparatus for storing airplanes
CN206635922U (en) * 2017-04-18 2017-11-14 杭州中美埃梯梯泵业有限公司 A kind of family expenses remove the sewage water lifter of stink
CN108331140A (en) * 2018-01-10 2018-07-27 河海大学 A kind of construction and device for eliminating deep layer drainage system interception air
CN110056069A (en) * 2019-04-27 2019-07-26 励土峰 A kind of high pressure flood control sewer drainage system
CN210543978U (en) * 2019-08-19 2020-05-19 肖红 Energy-concerving and environment-protective exhaust gas purification device
JP2021074702A (en) * 2019-11-04 2021-05-20 楽 康Le, Kang Siphon type drainage system for underground garage
CN111502360A (en) * 2020-04-25 2020-08-07 深圳市嘉盛建筑工程有限公司 Flood control drainage underground garage

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* Cited by examiner, † Cited by third party
Title
霍楠: "地下室停车库的排水设计", 《江西建材》 *

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Application publication date: 20220114

RJ01 Rejection of invention patent application after publication