CN219158206U - Rainwater recovery device of factory building - Google Patents

Rainwater recovery device of factory building Download PDF

Info

Publication number
CN219158206U
CN219158206U CN202320282244.8U CN202320282244U CN219158206U CN 219158206 U CN219158206 U CN 219158206U CN 202320282244 U CN202320282244 U CN 202320282244U CN 219158206 U CN219158206 U CN 219158206U
Authority
CN
China
Prior art keywords
drainage
drainage body
locking
factory building
arm
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.)
Active
Application number
CN202320282244.8U
Other languages
Chinese (zh)
Inventor
郭翠娟
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.)
Foshan City New District Of Shunde Construction Engineering Co ltd
Original Assignee
Foshan City New District Of Shunde Construction Engineering Co ltd
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 Foshan City New District Of Shunde Construction Engineering Co ltd filed Critical Foshan City New District Of Shunde Construction Engineering Co ltd
Priority to CN202320282244.8U priority Critical patent/CN219158206U/en
Application granted granted Critical
Publication of CN219158206U publication Critical patent/CN219158206U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Landscapes

  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

The utility model relates to a rainwater recovery unit of factory building belongs to the technical field of factory building, and it includes pre-buried support frame on the factory building lateral wall and sets up the drainage tank body on the support frame, the drainage tank body is located the below of factory building roof edge, the drainage tank body includes the drainage body that the polylith can splice each other, the quantity of support frame is unanimous and the one-to-one with the quantity of drainage body, the drainage body that support frame support position corresponds, the drainage tank body is used for accepting the rainwater that falls from factory building roof edge. The utility model has the effect of the installation of the water drainage tank body of being convenient for.

Description

Rainwater recovery device of factory building
Technical Field
The application relates to the field of plants, in particular to a rainwater recovery device of a plant.
Background
In the construction process in an industrial plant, in order to make rainwater falling on the top surface of the plant flow more orderly into a sewer, a drainage structure becomes an important component in the industrial plant.
The utility model provides a current China patent of bulletin number CN212926263U, it discloses a rainwater recovery unit of spongy industry factory building, including converging the subassembly, converging the subassembly and including the guide plate, the guide plate is fixed to be set up in the border department of roof, the guide plate extends along roof length direction and sets up, the guide plate is kept away from the fixed weather shield that is provided with in border department of roof, the weather shield extends along the length direction of guide plate and sets up, guide plate length direction's both ends vertical fixation is provided with the shrouding, a plurality of water conservancy diversion holes have been seted up on the guide plate, a plurality of water conservancy diversion holes are evenly arranged along the length direction of guide plate, be provided with the water collecting assembly on the house, the water collecting assembly includes water collecting main pipe and a plurality of water collecting branch pipes that are linked together with water collecting main pipe, water collecting main's delivery port department is provided with the cistern, the water conservancy diversion hole is the bell mouth, the aperture of water conservancy diversion hole is the direction taper setting from being close to water collecting branch pipe, each water conservancy diversion hole is internal all fixedly provided with a plurality of bars otter board.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: the drainage tank body is jointly formed by the guide plate, the rain baffle and the sealing plate and used for converging rainwater falling from the roof, but the guide plate, the rain baffle and the sealing plate are fixedly arranged on the guide plate, the guide plate is fixed at the edge of the roof, and the drainage tank body with an integrated structure is inconvenient for workers to install.
Disclosure of Invention
In order to be convenient for the installation of water drainage tank, this application provides a rainwater recovery unit of factory building.
The application provides a rainwater recovery unit of factory building adopts following technical scheme:
the utility model provides a rainwater recovery unit of factory building, includes pre-buried support frame on the factory building lateral wall and sets up the drainage tank body on the support frame, the drainage tank body is located the below of factory building roof edge, the drainage tank body includes the drainage body that the polylith can splice each other, the quantity of support frame is unanimous and the one-to-one with the quantity of drainage body, the drainage body that support frame support position corresponds, the drainage tank body is used for accepting the rainwater that falls from factory building roof edge.
Through adopting above-mentioned technical scheme, a plurality of drainage bodies can splice into drainage tank to prop through the drainage body that the support frame corresponds the position, make the drainage body can accept the rainwater that falls from factory building roof edge, compare with the drainage tank of integrated structure, reach the purpose of the drainage tank installation of being convenient for.
Optionally, the terminal surface diapire fixedly connected with forked tail strip of drainage body, the dovetail that corresponds with the forked tail strip position is seted up to the other terminal surface diapire of drainage body, the former the forked tail strip of drainage body and the dovetail of the later drainage body slide and connect, the spacing groove has all been seted up to the inner wall of the drainage body at drainage body both ends, the baffle has been inserted to the spacing groove.
By adopting the technical scheme, the splicing between adjacent drainage bodies is realized under the sliding connection effect of the dovetail strip and the dovetail groove.
Optionally, each the bottom surface middle part of drainage body is all fixed intercommunication has the drain pipe, each the bottom mounting cover of drain pipe is equipped with flange, the below of drainage tank body is provided with the header that transversely sets up, the fixed intercommunication in week side top of header has a plurality of connecting pipes, each the equal fixed cover in top of connecting pipe is equipped with flange down, and the position corresponds go up flange and flange down can dismantle the connection through the staple bolt, the fixed intercommunication in week side bottom of header has the pipeline, the below of header just is provided with the open-ended header in top in one side of factory building, the bottom of pipeline extends to in the header.
Through adopting above-mentioned technical scheme, the setting of pipeline is used for carrying out the recovery of rainwater in the rainwater water catch tank with the rainwater water conservancy diversion that falls from factory building roof edge.
Optionally, prop up the bracket including pre-buried connecting plate, fixed connection on the factory building lateral wall be close to the spliced pole of drainage body one side and set up the spacing subassembly that is close to drainage body one side at the connecting plate, the spliced groove that corresponds with spliced pole position is seted up to one side that the drainage body is close to the connecting plate, the one end that the spliced pole kept away from the connecting plate is pegged graft the cooperation with the spliced groove, spliced pole and spacing subassembly set up side by side from top to bottom, spacing subassembly is used for the drainage body that spacing position corresponds.
Through adopting above-mentioned technical scheme, make spliced pole and spliced groove grafting cooperation to spacing subassembly is spacing to the drainage body, thereby spacing drainage body on the support frame.
Optionally, spacing subassembly is including perpendicular fixing the support arm that is close to drainage body one side at the connecting plate, rotate the spacing arm of connecting in support arm one end of keeping away from the connecting plate and set up the locking part on spacing arm, the top surface of support arm supports the bottom surface of drainage body that the position corresponds, one side that the spacing arm is close to support arm and drainage body keep away from the lateral wall butt of connecting plate, just the lateral wall that the drainage body kept away from the connecting plate has seted up the locking groove, locking part's locking end and locking groove grafting cooperation.
Through adopting above-mentioned technical scheme, under the support effect of support arm to the drainage body, rotate spacing arm and make spacing arm carry out spacingly to the drainage body to make locking part's locking end and locking groove grafting cooperation, thereby lock the drainage body on spacing arm.
Optionally, the holding tank has been seted up at one side top that the spacing arm is close to the connecting plate, locking component sets up in the holding tank, locking component is including sliding the locking lever of connection in the holding tank, with the tip fixed connection's of locking lever connecting rod and the spring of cover on the connecting rod, spring fixed connection is between the inner wall of locking lever and holding tank, the one end that the connecting rod was kept away from to the locking lever is pegged graft the cooperation with the holding tank.
Through adopting above-mentioned technical scheme, when the position of locking lever and locking groove corresponds, the spring resets, and locking lever and locking groove grafting cooperation to lock the drainage body on the spacing arm.
Optionally, the one end that the connecting rod kept away from the locking lever runs through spacing arm and extends outside the spacing arm, the connecting rod extends to the outer one end fixedly connected with pull block of spacing arm.
Through adopting above-mentioned technical scheme, the setting of pulling piece is convenient for pull the connecting rod.
Optionally, the opening part of the drainage body and be located the drainage body and keep away from the extension board that one side fixedly connected with slope set up of a bracket, the incline direction of extension board upwards inclines to the direction that keeps away from the drainage body and sets up.
By adopting the technical scheme, the arrangement of the extension plate reduces the occurrence of the condition that the rain water falls outside the drainage body.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the drainage bodies can be spliced into drainage groove bodies, and the drainage bodies corresponding to the positions are supported through the supporting frames, so that the drainage bodies can receive rainwater falling from the edge of the roof of a factory building, and compared with the drainage groove bodies with integrated structures, the drainage groove bodies can be conveniently installed;
2. under the supporting action of the supporting arm on the drainage body, the limiting arm is rotated to enable the limiting arm to limit the drainage body, and the locking end of the locking component is in plug-in connection with the locking groove, so that the drainage body is locked on the limiting arm.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present application.
Fig. 2 is an enlarged partial schematic view of the portion a in fig. 1.
Fig. 3 is an exploded view of the support bracket and drainage body of the present application.
Fig. 4 is a partially enlarged schematic view of the portion B in fig. 3.
Reference numerals illustrate: 1. a support bracket; 11. a connecting plate; 12. inserting a connecting rod; 13. a limit component; 131. a support arm; 132. a limiting arm; 1321. a receiving groove; 133. a locking lever; 134. a connecting rod; 135. a spring; 136. pulling blocks; 2. a drainage body; 21. an extension plate; 22. dovetail strips; 23. a dovetail groove; 24. a limit groove; 25. a baffle; 26. a drain pipe; 261. a grating plate; 262. an upper connecting flange; 27. a header; 271. a connecting pipe; 272. a lower connecting flange; 273. a pipe; 274. a hoop; 28. a water collection tank; 29. locking grooves.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses a rainwater recovery device of factory building. Referring to fig. 1 and 2, the rainwater recovery unit of factory building includes pre-buried support 1 on the factory building lateral wall and sets up the drainage tank body on support 1, and the drainage tank body is located the below of factory building roof edge, and the drainage tank body includes the drainage body 2 that the polylith can splice each other, and the quantity of support 1 is unanimous and the one-to-one with the quantity of drainage body 2, and the drainage body 2 that support 1 support position corresponds is used for accepting the rainwater that falls from factory building roof edge to the drainage tank body.
Referring to fig. 1 and 2, the drainage body 2 is U-shaped and has an opening facing upwards, and an extension plate 21 is fixedly connected to the opening of the drainage body 2 and located at one side of the drainage body 2 away from the support bracket 1, and the inclination direction of the extension plate 21 is inclined upwards in a direction away from the drainage body 2; the arrangement of the extension plate 21 thus reduces the occurrence of rain water falling out of the drainage body 2. The end face bottom wall of the drainage body 2 is fixedly connected with a dovetail bar 22, the length direction of the dovetail bar 22 is vertical to the length direction of the drainage body 2, the other end face bottom wall of the drainage body 2 is provided with a dovetail groove 23 corresponding to the position of the dovetail bar 22, and the dovetail bar 22 of the previous drainage body 2 is in sliding connection with the dovetail groove 23 of the next drainage body 2; thereby completing the splice between the adjacent drainage bodies 2. Meanwhile, in order to improve the water resistance of the junction of the adjacent drainage bodies 2, a first rubber pad (not shown in the drawing) is fixedly connected to the outer surface of the dovetail bar 22, and when the dovetail bar 22 is slidingly connected into the dovetail groove 23, the first rubber pad fills the gap between the dovetail bar 22 and the dovetail groove 23.
Referring to fig. 1 and 2, the inner walls of the drainage bodies 2 at two ends of the drainage bodies are provided with the U-shaped limiting grooves 24, the baffle plates 25 are inserted into the limiting grooves 24, and meanwhile, in order to improve the water resistance between the drainage bodies 2 and the baffle plates 25, the second rubber pads are fixedly connected to the connecting positions of the baffle plates 25 and the limiting grooves 24, and when the baffle plates 25 are inserted into the limiting grooves 24, the second rubber pads fill gaps between the baffle plates 25 and the limiting grooves 24.
Referring to fig. 2 and 3, a drain pipe 26 is fixedly connected to the middle of the bottom surface of each drain body 2, a grating plate 261 is fixedly connected to the top end opening of the drain pipe 26, and the top surface of the grating plate 261 is flush with the inner bottom wall of the drain body 2. An upper connecting flange 262 is fixedly sleeved at the bottom end of each drain pipe 26, a transversely arranged collecting pipe 27 is arranged below the drain tank body, and two ports of the collecting pipe 27 are closed; the top of the circumference side of the collecting pipe 27 is fixedly communicated with a plurality of connecting pipes 271, and the number of the connecting pipes 271 is consistent with that of the drain pipes 26 and corresponds to that of the drain pipes 26 one by one; the top end of each connecting pipe 271 is fixedly sleeved with a lower connecting flange 272, the upper connecting flange 262 and the lower connecting flange 272 which correspond to each other are mutually attached, and the upper connecting flange 262 and the lower connecting flange 272 which correspond to each other are detachably connected through a hoop 274 with bolts and nuts. The bottom of the circumference side of the collecting pipe 27 is fixedly communicated with a pipeline 273, a water collecting tank 28 with an upper opening is arranged below the collecting pipe 27 and at one side of the factory building, and the bottom end of the pipeline 273 extends into the water collecting tank 28.
Referring to fig. 3 and 4, the support bracket 1 comprises a connecting plate 11 pre-buried on the side wall of a factory building, a plugging rod 12 fixedly connected to one side of the connecting plate 11 close to the drainage body 2, and a limiting assembly 13 arranged on one side of the connecting plate 11 close to the drainage body 2; the inserting connection rod 12 and the limiting assembly 13 are arranged up and down in parallel, and the limiting assembly 13 is used for limiting the drainage body 2 corresponding to the position. The connecting plate 11 is fixedly connected to the side wall of the plant, and the outer side of the connecting plate 11 is level with the side wall of the plant; one side of the drainage body 2, which is close to the connecting plate 11, is provided with a plugging groove corresponding to the position of the plugging rod 12, and one end of the plugging rod 12, which is far away from the connecting plate 11, is plugged and matched with the plugging groove. In this embodiment, two plugging rods 12 are provided on each bracket 1, the two plugging rods 12 are respectively located at two ends of the side surface of the connecting plate 11, and the number of the limiting assemblies 13 is consistent with and corresponds to the number of the plugging rods 12 one by one.
Referring to fig. 3 and 4, the stopper assembly 13 includes a bracket arm 131 vertically fixed to a side of the connection plate 11 near the drain body 2, a stopper arm 132 rotatably connected to an end of the bracket arm 131 remote from the connection plate 11, and a locking member provided on the stopper arm 132; the top surface of the supporting arm 131 supports the bottom surface of the drainage body 2 corresponding to the position; one side of the limiting arm 132, which is close to the supporting arm 131, is abutted against the side wall, away from the connecting plate 11, of the drainage body 2, and the side wall, away from the connecting plate 11, of the drainage body 2 is provided with a locking groove 29, and the locking end of the locking component is in plug-in fit with the locking groove 29.
Referring to fig. 3 and 4, a receiving groove 1321 is formed in the top of one side of the limiting arm 132, which is close to the connection plate 11, a notch of the receiving groove 1321 faces the connection plate 11, and a locking member is disposed in the receiving groove 1321. The locking part comprises a locking rod 133 slidingly connected in the accommodating groove 1321, a connecting rod 134 fixedly connected with the end part of the locking rod 133 and a spring 135 sleeved on the connecting rod 134; one end of the spring 135 is fixedly connected with one end of the locking rod 133, which is close to the connecting rod 134, one end of the spring 135, which is far away from the locking rod 133, is fixedly connected with the inner wall of the accommodating groove 1321, one end of the locking rod 133, which is far away from the connecting rod 134, extends to the outside of the limiting arm 132 along the notch of the accommodating groove 1321, and one end of the locking rod 133, which extends to the outside of the limiting arm 132, is in plug-in fit with the locking groove 29; one end of the connecting rod 134, which is far away from the locking rod 133, penetrates through the limiting arm 132 and extends out of the limiting arm 132, and one end of the connecting rod 134, which extends out of the limiting arm 132, is fixedly connected with a pull block 136.
The implementation principle of the rainwater recovery device of the factory building of the embodiment of the application is as follows: the plug rod 12 is in plug fit with the plug groove, the limit arm 132 is rotated under the supporting action of the supporting arm 131 on the drainage body 2, when the locking rod 133 corresponds to the position of the locking groove 29, the spring 135 is reset, the locking rod 133 is in plug fit with the locking groove 29, so that the drainage body 2 is locked on the limit arm 132, splicing between adjacent drainage bodies 2 is realized under the sliding connection action of the dovetail strip 22 and the dovetail groove 23, the drainage pipe 26 and the connecting pipe 271 are locked under the locking action of the hoop 274, and the pipeline 273 guides rainwater falling from the edge of the roof of a factory into the water collecting tank 28 for recycling.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a rainwater recovery unit of factory building which characterized in that: including pre-buried support frame (1) on factory building lateral wall and the drainage tank body of setting on support frame (1), the drainage tank body is located the below of factory building roof edge, the drainage tank body includes polylith drainage body (2) that can splice each other, the quantity of support frame (1) is unanimous and one-to-one with the quantity of drainage body (2), the drainage body (2) that support frame (1) support position corresponds, the drainage tank body is used for accepting the rainwater that falls from factory building roof edge.
2. The plant stormwater recovery device as claimed in claim 1, wherein: the utility model discloses a drainage body, including terminal surface diapire fixedly connected with forked tail strip (22) of drainage body (2), dovetail (23) corresponding with forked tail strip (22) position have been seted up to the other terminal surface diapire of drainage body (2), the former forked tail strip (22) of drainage body (2) and dovetail (23) of latter drainage body (2) slide and connect, spacing groove (24) have all been seted up to the inner wall of drainage body (2) at drainage body both ends, peg graft in spacing groove (24) and have baffle (25).
3. The plant stormwater recovery device as claimed in claim 1, wherein: each drain body (2) bottom surface middle part all is fixed to be linked together and is had drain pipe (26), each drain pipe (26) bottom fixed cover is equipped with flange (262), drain tank's below is provided with transversely setting's collection pipe (27), the fixed intercommunication in week side top of collection pipe (27) has a plurality of connecting pipes (271), each the equal fixed cover in top of connecting pipe (271) is equipped with flange (272) down, and the position corresponds go up flange (262) and flange (272) down and pass through staple bolt (274) and dismantle the connection, the fixed intercommunication in week side bottom of collection pipe (27) has pipeline (273), the below of collection pipe (27) just is located one side of factory building and is provided with upper portion open-ended header (28), the bottom of pipeline (273) extends to in header (28).
4. The plant stormwater recovery device as claimed in claim 1, wherein: the supporting frame (1) comprises a connecting plate (11) pre-buried on the side wall of a factory building, a plug rod (12) fixedly connected to one side of the connecting plate (11) close to the drainage body (2) and a limiting component (13) arranged on one side of the connecting plate (11) close to the drainage body (2), a plug groove corresponding to the position of the plug rod (12) is formed in one side of the drainage body (2) close to the connecting plate (11), one end of the plug rod (12) away from the connecting plate (11) is matched with the plug groove in a plug manner, the plug rod (12) and the limiting component (13) are arranged side by side up and down, and the limiting component (13) is used for the drainage body (2) corresponding to the limiting position.
5. The plant stormwater recovery apparatus as claimed in claim 4, wherein: spacing subassembly (13) are including perpendicular fixed in support arm (131) that support arm (131) are close to drainage body (2) one side, rotate and connect spacing arm (132) and the locking part of setting on spacing arm (132) of keeping away from connecting plate (11) one end in support arm (131), the top surface of support arm (131) supports the bottom surface of drainage body (2) that the position corresponds, one side that support arm (132) is close to support arm (131) and drainage body (2) keep away from the lateral wall butt of connecting plate (11), just locking groove (29) have been seted up to the lateral wall that drainage body (2) kept away from connecting plate (11), locking end and locking groove (29) grafting cooperation of locking part.
6. The plant stormwater recovery apparatus as claimed in claim 5, wherein: the utility model discloses a locking device for the automobile, including connecting plate (11), spacing arm (132), locking part, spring (135) are established on connecting rod (134) including sliding connection locking lever (133) in holding tank (1321), connecting rod (134) and cover of tip fixed connection with locking lever (133), spring (135) fixed connection is between the inner wall of locking lever (133) and holding tank (1321), one end and locking tank (29) grafting cooperation of connecting rod (134) are kept away from to locking lever (133).
7. The plant stormwater recovery device as claimed in claim 6, wherein: one end of the connecting rod (134) far away from the locking rod (133) penetrates through the limiting arm (132) and extends out of the limiting arm (132), and one end of the connecting rod (134) extending out of the limiting arm (132) is fixedly connected with a pull block (136).
8. The plant stormwater recovery device as claimed in claim 1, wherein: the water drainage device is characterized in that an extending plate (21) which is obliquely arranged is fixedly connected to the opening of the water drainage body (2) and is positioned on one side, away from the support bracket (1), of the water drainage body (2), and the inclined direction of the extending plate (21) is obliquely upwards arranged in a direction away from the water drainage body (2).
CN202320282244.8U 2023-02-21 2023-02-21 Rainwater recovery device of factory building Active CN219158206U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320282244.8U CN219158206U (en) 2023-02-21 2023-02-21 Rainwater recovery device of factory building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320282244.8U CN219158206U (en) 2023-02-21 2023-02-21 Rainwater recovery device of factory building

Publications (1)

Publication Number Publication Date
CN219158206U true CN219158206U (en) 2023-06-09

Family

ID=86613481

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320282244.8U Active CN219158206U (en) 2023-02-21 2023-02-21 Rainwater recovery device of factory building

Country Status (1)

Country Link
CN (1) CN219158206U (en)

Similar Documents

Publication Publication Date Title
CN108040673B (en) Construction method of vertical greening plant curtain wall
CN211849241U (en) Municipal administration water conservancy flood prevention device
CN211775175U (en) Roof rainwater collecting device
CN219158206U (en) Rainwater recovery device of factory building
CN219081248U (en) Building enclosure for building construction
CN202170652U (en) Antifouling rain channeling awning in drilling well site
CN112049121B (en) Supporting construction for building underground space under existing building group
CN211007358U (en) Drainage structure for housing construction
CN210658465U (en) Municipal administration pipeline inspection shaft
CN220184089U (en) Cable well
CN101137795A (en) Aggregate of pipes for storage tank
CN220620359U (en) Ecological drainage ditch for soil and water conservation engineering
CN218581030U (en) Balcony rainwater collecting device
CN213926300U (en) Slope reinforcing device for foundation building engineering
CN217810315U (en) Highway torrent sluicing groove
CN217399798U (en) Water resource collecting device
CN218091664U (en) Zero slope hydrocone type drainage device
CN221447971U (en) Fire-resistant cable groove box for cable duct
CN220847670U (en) Foundation pit waterproof curtain with good impermeability
CN214364496U (en) Mill uses rainwater drainage device
CN214834191U (en) Steel structure awning
CN211690695U (en) Drainage ditch cover plate structure
CN216517242U (en) Building envelope of building engineering
CN204850009U (en) Modularization drainage pipe
CN219327247U (en) Sewer anti-blocking mechanism of building drainage system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant