[go: up one dir, main page]

CN211229224U - Civil building prevents blockking up drainage structures - Google Patents

Civil building prevents blockking up drainage structures Download PDF

Info

Publication number
CN211229224U
CN211229224U CN201921887573.5U CN201921887573U CN211229224U CN 211229224 U CN211229224 U CN 211229224U CN 201921887573 U CN201921887573 U CN 201921887573U CN 211229224 U CN211229224 U CN 211229224U
Authority
CN
China
Prior art keywords
filter plate
drainage
annular
ring
along
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.)
Expired - Fee Related
Application number
CN201921887573.5U
Other languages
Chinese (zh)
Inventor
郑磊
胡野
陈克荣
刘明霞
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.)
JIANGSU SHUANGLOU CONSTRUCTION GROUP CO Ltd
Original Assignee
JIANGSU SHUANGLOU CONSTRUCTION GROUP 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 JIANGSU SHUANGLOU CONSTRUCTION GROUP CO Ltd filed Critical JIANGSU SHUANGLOU CONSTRUCTION GROUP CO Ltd
Priority to CN201921887573.5U priority Critical patent/CN211229224U/en
Application granted granted Critical
Publication of CN211229224U publication Critical patent/CN211229224U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sewage (AREA)

Abstract

The utility model discloses a civil building anti-blocking drainage structure, which relates to the technical field of drainage and aims to solve the technical problem that the existing drainage pipeline is easy to block; the upper surface of the filter plate is provided with a receiving ring along the circumferential direction, the side wall of the receiving ring facing the direction of the filter plate is provided with a receiving ring groove along the circumferential direction for collecting impurities in the accumulated water in a centralized manner, and the cross section of the filter plate along the thickness direction is arc-shaped; on the one hand, filter the impurity of ponding aquatic through the filter screen, reduce drainage pipe's jam, on the other hand makes the impurity of filtering off concentrate in accomodating the annular, has reduced the possibility that impurity blockked up filter screen net mouth to the jam of drainage pipe has been reduced to a certain extent.

Description

一种民用建筑防堵塞排水结构An anti-clogging drainage structure for civil buildings

技术领域technical field

本实用新型涉及排水技术领域,更具体地说,它涉及一种民用建筑防堵塞排水结构。The utility model relates to the technical field of drainage, in particular to an anti-clogging drainage structure for civil buildings.

背景技术Background technique

排水管道是指汇集和排放污水、废水和雨水的管渠及其附属设施所组成的系统。Drainage pipeline refers to a system composed of pipes and their ancillary facilities that collect and discharge sewage, waste water and rainwater.

现有申请公布号为CN204662382U的中国专利,公开了一种水电站地下厂房的顶棚排水结构,包括安装在隔墙和顶棚之间的排水管,排水管倾斜设置,其上端连通送风道,其下端连通排烟道,排水管的下端带有水封部,水封部的排出口水平设置,排出口的下侧壁带有排水孔,该排水结构采用水平设置并带有向下排水孔的排水口,将积水进行分散排出,能够减小排出阻力。The existing Chinese patent with publication number CN204662382U discloses a ceiling drainage structure for an underground powerhouse of a hydropower station, including a drainage pipe installed between the partition wall and the ceiling. Connected to the exhaust duct, the lower end of the drainage pipe is provided with a water seal, the discharge port of the water seal is arranged horizontally, and the lower side wall of the discharge port is provided with a drainage hole. The port can disperse and discharge the accumulated water, which can reduce the discharge resistance.

但是,积水在排出的过程中一般会夹带杂质垃圾,易使排水孔造成堵塞,从而降低了排水口处的排水效率,故有待改善。However, the stagnant water generally entrains impurities and garbage during the discharge process, which is easy to block the drainage holes, thereby reducing the drainage efficiency at the drainage outlet, so it needs to be improved.

实用新型内容Utility model content

针对现有技术存在的不足,本实用新型的目的在于提供一种民用建筑防堵塞排水结构,其具有能够过滤积水中的杂质,减少排水管道堵塞的优势。Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an anti-clogging drainage structure for civil buildings, which has the advantages of being able to filter impurities in stagnant water and reducing clogging of drainage pipes.

为实现上述目的,本实用新型提供了如下技术方案:To achieve the above object, the utility model provides the following technical solutions:

一种民用建筑防堵塞排水结构,包括排水管道,所述排水管道内部设置有过滤板,所述排水管道内部设置有过滤板,所述过滤板位于排水管道的进水口处,所述过滤板上设置有过滤网;所述过滤板的上表面沿其周向设置有收纳环,所述收纳环外侧壁与排水管道的内侧壁相贴合;所述收纳环内侧壁沿其周向设置有用于集中收集积水中杂质的收纳环槽,所述过滤网的截面为中间高两端低的弧形。An anti-clogging drainage structure for civil buildings comprises a drainage pipe, a filter plate is arranged inside the drainage pipe, a filter plate is arranged inside the drainage pipe, the filter plate is located at the water inlet of the drainage pipe, and the filter plate is arranged on the inside of the drainage pipe. A filter screen is provided; the upper surface of the filter plate is provided with a receiving ring along its circumferential direction, and the outer side wall of the receiving ring is fitted with the inner side wall of the drainage pipe; the inner side wall of the receiving ring is provided with a The storage ring groove for collecting impurities in the accumulated water centrally, and the cross section of the filter screen is an arc shape with a high middle and low ends.

通过采用上述技术方案,一方面,通过过滤网过滤掉积水中的杂质,减少排水管道的堵塞,另一方面,使过滤出的杂质集中在收纳环槽内,减小了杂质堵塞过滤网网口的可能性,从而在一定程度上减少了排水管道的堵塞。By adopting the above technical solution, on the one hand, the impurities in the stagnant water are filtered out through the filter screen to reduce the blockage of the drainage pipe; The possibility of opening, thereby reducing the blockage of the drainage pipe to a certain extent.

进一步地,所述收纳环槽的下表面与过滤板的下表面相贯通。Further, the lower surface of the receiving ring groove communicates with the lower surface of the filter plate.

通过采用上述技术方案,当部分积水随杂质一并进入收纳环槽内之后,由于收纳环槽与过滤板的下表面相贯通,因此,积水可从收纳环槽内通过过滤网排出,而不会积留在收纳环槽内。By adopting the above technical solution, when part of the accumulated water enters the receiving ring groove together with the impurities, since the receiving ring groove is connected with the lower surface of the filter plate, the accumulated water can be discharged from the receiving ring groove through the filter screen, while the Will not accumulate in the storage ring groove.

进一步地,所述收纳环靠近过滤板方向的端面上设置有导流面。Further, a flow guide surface is provided on the end surface of the receiving ring in the direction close to the filter plate.

通过采用上述技术方案,使收纳环上的积水沿导流面流向过滤网,再从过滤网上排出。By adopting the above technical solution, the accumulated water on the receiving ring flows to the filter screen along the guide surface, and then is discharged from the filter screen.

进一步地,所述排水管道内侧壁沿其周向设置环状台,所述环状台的上表面向下凹陷设置有环槽,所述过滤板的下表面沿其周向设置有环状凸起,所述环状凸起嵌置在环槽内。Further, the inner side wall of the drainage pipe is provided with a ring-shaped platform along its circumferential direction, the upper surface of the ring-shaped platform is provided with an annular groove downwardly concave, and the lower surface of the filter plate is provided with a ring-shaped convex along its circumferential direction. From now on, the annular protrusion is embedded in the annular groove.

通过采用上述技术方案,实现过滤板与排水管的可拆卸连接,便于定期从排水管道内取出过滤板,并将收纳环槽内的杂质排出。By adopting the above technical solution, the detachable connection between the filter plate and the drainage pipe is realized, and it is convenient to take out the filter plate from the drainage pipe regularly and discharge the impurities in the receiving ring groove.

进一步地,所述收纳环的上表面设置有倾斜刮片,所述倾斜刮片与排水管道内侧壁相贴合。Further, an inclined scraper is provided on the upper surface of the receiving ring, and the inclined scraper is fitted with the inner side wall of the drainage pipe.

通过采用上述技术方案,在取出过滤板时,收纳环沿排水管道侧壁上移,此时可通过倾斜刮片将粘在排水管道内侧壁上的杂质垃圾一并刮出排水管道内。By adopting the above technical solution, when the filter plate is taken out, the receiving ring moves up along the side wall of the drainage pipe, and the impurity and garbage adhering to the inner side wall of the drainage pipe can be scraped out of the drainage pipe together with the inclined scraper.

进一步地,所述环状凸起的侧壁设置有密封环圈,所述密封环圈与环状台的上表面紧密贴合。Further, a sealing ring is provided on the side wall of the annular protrusion, and the sealing ring is closely fitted with the upper surface of the annular platform.

通过采用上述技术方案,提高过滤板与排水管道连接处的密封性,减少积水渗入环槽内。By adopting the above technical scheme, the sealing performance of the connection between the filter plate and the drainage pipe is improved, and the infiltration of accumulated water into the ring groove is reduced.

进一步地,所述环状凸起的下表面设置有海绵垫层。Further, a sponge cushion layer is provided on the lower surface of the annular protrusion.

通过采用上述技术方案,在装卸过滤板的过程中,海绵垫层能够吸附流入环槽内的积水,保持环槽内部干燥清洁。By adopting the above technical solution, in the process of loading and unloading the filter plate, the sponge cushion layer can absorb the accumulated water flowing into the ring groove and keep the inside of the ring groove dry and clean.

进一步地,所述过滤板的上表面且位于其周向设置有吊环。Further, a lifting ring is provided on the upper surface of the filter plate and in the circumferential direction thereof.

通过采用上述技术方案,便于通过提拉吊环来实现过滤板在排水管道内的快速装卸。By adopting the above technical solution, it is convenient to realize the quick loading and unloading of the filter plate in the drainage pipeline by pulling the lifting ring.

综上所述,本实用新型具有以下有益效果:To sum up, the utility model has the following beneficial effects:

1、当污水进入排水管道后,一方面,通过过滤网过滤掉积水中的杂质,减少排水管道的堵塞,另一方面,使过滤出的杂质集中在收纳环槽内,减小了杂质堵塞过滤网网口的可能性,从而在一定程度上减少了排水管道的堵塞;1. When the sewage enters the drainage pipe, on the one hand, the impurities in the stagnant water are filtered out through the filter screen to reduce the blockage of the drainage pipe; on the other hand, the filtered impurities are concentrated in the receiving ring groove, which reduces the blockage of impurities Possibility of filter mesh opening, thus reducing the blockage of drainage pipes to a certain extent;

2、通过将过滤板上的嵌置凸起嵌入环槽内,以实现过滤板与排水管的可拆卸连接,便于定期从排水管道内取出过滤板,并将收纳环槽内的杂质排出。2. By inserting the embedded protrusions on the filter plate into the ring groove, the detachable connection between the filter plate and the drain pipe is realized, and it is convenient to take out the filter plate from the drain pipe regularly and discharge the impurities in the receiving ring groove.

附图说明Description of drawings

图1为一种民用建筑防堵塞排水结构的剖视图;Fig. 1 is a sectional view of a civil building anti-clogging drainage structure;

图2为图1中用于体现A部分结构的放大图。FIG. 2 is an enlarged view for embodying the structure of part A in FIG. 1 .

图中:1、排水管道;11、环状台;111、环槽;2、过滤板;21、环状凸起;211、海绵垫层;212、密封环圈;221、过滤网;23、收纳环;231、收纳环槽;232、导流面;233、吊环;234、倾斜刮片。In the figure: 1. Drainage pipe; 11. Ring-shaped table; 111. Ring groove; 2. Filter plate; 21. Ring-shaped protrusion; 211. Sponge cushion; 212. Sealing ring; storage ring; 231, storage ring groove; 232, guide surface; 233, lifting ring; 234, inclined scraper.

具体实施方式Detailed ways

以下结合附图对本实用新型作进一步详细说明。The present utility model will be described in further detail below in conjunction with the accompanying drawings.

实施例:Example:

一种民用建筑防堵塞排水结构,参照图1和图2,其包括排水管道1,排水管道1内侧壁沿其周向粘固有塑料材质的环状台11,环状台11靠近排水管道1的进水口处;环状台11的上表面沿其周向凹设有环槽111,排水管道1内部设置有过滤板2,过滤板2下表面沿其周向向下凸设有环状凸起21,环状凸起21嵌置在环槽111内,环形凸起21下表面沿其周向粘固有海绵垫层211,环状凸起21侧壁套接有橡胶材质的密封环圈212,密封环圈212与环槽111的上端面相紧密贴合。过滤板2上嵌置有过滤网221,便于过滤出积水中的杂质,减小排水管道1堵塞的可能。An anti-clogging drainage structure for civil buildings, referring to FIG. 1 and FIG. 2, includes a drainage pipe 1, and an annular platform 11 made of plastic material is adhered to the inner side wall of the drainage pipeline 1 along its circumferential direction. At the water inlet; an annular groove 111 is concavely formed on the upper surface of the annular table 11 along its circumferential direction, a filter plate 2 is arranged inside the drainage pipe 1, and an annular protrusion 21 is protruded downward on the lower surface of the filter plate 2 along its circumferential direction. The annular protrusion 21 is embedded in the annular groove 111, the lower surface of the annular protrusion 21 is adhered with a sponge cushion 211 along its circumferential direction, and the side wall of the annular protrusion 21 is sleeved with a sealing ring 212 made of rubber material. The ring 212 is in close contact with the upper end surface of the ring groove 111 . A filter screen 221 is embedded on the filter plate 2, which facilitates filtering out impurities in the accumulated water and reduces the possibility that the drainage pipe 1 is blocked.

参照图1和图2,过滤网221的截面为中间高四周低的弧形,过滤板2的上表面通过螺钉固定设置有环状的收纳环23,收纳环23沿过滤板2的周向设置,收纳环23外侧壁与排水管道1的内侧壁相贴合;收纳环23内侧壁沿其周向开设有收纳环槽231,收纳环槽231的下表面与收纳环23的下表面相齐平,部分无法通过过滤网221的杂质在水流的带动下沿倾斜的过滤网221排入收纳环槽231内,减少杂质直接覆盖在过滤网221的网口处,而阻碍积水通过过滤网221的情况,此时随杂质一起进入收纳环槽231内的积水会从收纳环槽231内部的过滤网221处流出。1 and FIG. 2 , the cross section of the filter screen 221 is an arc with a high middle and a low circumference. The upper surface of the filter plate 2 is fixed with an annular receiving ring 23 by screws, and the receiving ring 23 is arranged along the circumferential direction of the filter plate 2. , the outer side wall of the receiving ring 23 is in contact with the inner side wall of the drainage pipe 1; the inner side wall of the receiving ring 23 is provided with a receiving ring groove 231 along its circumferential direction, and the lower surface of the receiving ring groove 231 is flush with the lower surface of the receiving ring 23 , some impurities that cannot pass through the filter screen 221 are discharged into the receiving ring groove 231 along the inclined filter screen 221 under the drive of the water flow, so as to reduce the impurities directly covering the mesh opening of the filter screen 221, and prevent the water from passing through the filter screen 221. In some cases, the accumulated water that enters the receiving ring groove 231 together with the impurities will flow out from the filter screen 221 inside the receiving ring groove 231 .

参照图1和图2,收纳环23朝向过滤板2方向的端面上设置有弧形的导流面232,导流面232朝向过滤板2的方向向下弯曲设置,便于使滴落在收纳环23上的积水沿导流面232流向过滤板2,并从过滤网221上排出;收纳环23上表面焊接有两个吊环233,可通过勾拉吊环233来将过滤板2从排水管道1内快速取出,定期排出收纳环槽231内侧杂质垃圾;收纳环23上表面一体成型有倾斜刮片234,倾斜刮片234与排水管道1的内侧壁相贴合;在将过滤板2从排水管道1内取出时,倾斜刮片234沿排水管道1上移,从而将粘附在排水管道1内侧壁上的杂质刮出排水管道1内,保持排水管道1内部的清洁。Referring to FIGS. 1 and 2 , the end surface of the receiving ring 23 facing the filter plate 2 is provided with an arc-shaped guide surface 232 , and the guide surface 232 is bent downward in the direction of the filter plate 2 , which is convenient for dripping on the receiving ring. The accumulated water on 23 flows to the filter plate 2 along the guide surface 232, and is discharged from the filter screen 221; two lifting rings 233 are welded on the upper surface of the receiving ring 23, and the filter plate 2 can be removed from the drainage pipe 1 by pulling the lifting rings 233. Quickly take out the inside, and regularly discharge the impurities and garbage inside the storage ring groove 231; the upper surface of the storage ring 23 is integrally formed with an inclined scraper 234, and the inclined scraper 234 is attached to the inner side wall of the drainage pipe 1; after the filter plate 2 is removed from the drainage pipe When taking out the inside of the drain pipe 1, the inclined scraper 234 moves up along the drain pipe 1, thereby scraping the impurities adhering to the inner side wall of the drain pipe 1 out of the drain pipe 1, so as to keep the inside of the drain pipe 1 clean.

工作原理如下:It works as follows:

当积水进入上述排水管道1之后,积水从过滤板2的过滤网221上排下,积水中无法穿过过滤网221的杂质垃圾在积水的冲击下沿弯曲的过滤网221进入收纳环槽231内,随杂质一并流入收纳环槽231内的部分积水可从收纳环槽231处的过滤网221内排出,使杂质集中在过滤网221的边缘,减少杂质堵塞过滤网221网口;当使用一段时间之后,通过勾住吊环233将过滤板2从排水管道1内取出,排出收纳环槽231中的杂质,冲洗过滤网221网口。After the accumulated water enters the above-mentioned drainage pipe 1, the accumulated water is discharged from the filter screen 221 of the filter plate 2, and the impurities and garbage that cannot pass through the filter screen 221 in the accumulated water enter the storage along the curved filter screen 221 under the impact of the accumulated water. In the ring groove 231, part of the accumulated water that flows into the receiving ring groove 231 together with the impurities can be discharged from the filter screen 221 at the receiving ring groove 231, so that the impurities are concentrated on the edge of the filter screen 221, and the impurity clogging of the filter screen 221 is reduced. After using for a period of time, the filter plate 2 is taken out from the drainage pipe 1 by hooking the lifting ring 233, the impurities in the receiving ring groove 231 are discharged, and the mesh port of the filter screen 221 is rinsed.

本具体实施例仅仅是对本实用新型的解释,其并不是对本实用新型的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本实用新型的权利要求范围内都受到专利法的保护。This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Claims (8)

1. The utility model provides a civil construction prevents blockking up drainage structures, includes drainage pipe (1), its characterized in that: a filter plate (2) is arranged in the drainage pipeline (1), the filter plate (2) is positioned at the water inlet of the drainage pipeline (1), and a filter screen (221) is arranged on the filter plate (2); the upper surface of the filter plate (2) is provided with a receiving ring (23) along the circumferential direction, and the outer side wall of the receiving ring (23) is attached to the inner side wall of the drainage pipeline (1); accomodate ring (23) inside wall and be provided with along its circumference and be used for concentrating the collection ponding impurity accomodate annular (231), the cross-section of filter screen (221) is the arc that the high both ends are low in the middle of.
2. The anti-clogging drainage structure for civil buildings according to claim 1, characterized in that: the lower surface of the containing ring groove (231) is flush with the lower surface of the filter plate (2).
3. The anti-clogging drainage structure for civil buildings according to claim 1, characterized in that: the end face of the containing ring (23) close to the direction of the filter plate (2) is provided with a flow guide surface (232).
4. The anti-clogging drainage structure for civil buildings according to claim 1, characterized in that: drainage pipe (1) inside wall sets up cyclic annular platform (11) along its circumference, the upper surface undercut of cyclic annular platform (11) is provided with annular (111), the lower surface of filter (2) is provided with cyclic annular arch (21) along its circumference, cyclic annular arch (21) are inlayed and are put in annular (111).
5. The anti-clogging drainage structure for civil buildings according to claim 1, characterized in that: the upper surface of the containing ring (23) is provided with an inclined scraper (234), and the inclined scraper (234) is attached to the inner side wall of the drainage pipeline (1).
6. The anti-clogging drainage structure for civil buildings according to claim 4, characterized in that: the side wall of the annular bulge (21) is provided with a sealing ring (212), and the sealing ring (212) is attached to the upper surface of the annular table (11).
7. The anti-clogging drainage structure for civil buildings according to claim 6, characterized in that: the lower surface of the annular bulge (21) is provided with a sponge cushion layer (211).
8. The anti-clogging drainage structure for civil buildings according to claim 7, characterized in that: the upper surface of the containing ring (23) is provided with a hanging ring (233).
CN201921887573.5U 2019-11-05 2019-11-05 Civil building prevents blockking up drainage structures Expired - Fee Related CN211229224U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921887573.5U CN211229224U (en) 2019-11-05 2019-11-05 Civil building prevents blockking up drainage structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921887573.5U CN211229224U (en) 2019-11-05 2019-11-05 Civil building prevents blockking up drainage structures

Publications (1)

Publication Number Publication Date
CN211229224U true CN211229224U (en) 2020-08-11

Family

ID=71936561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921887573.5U Expired - Fee Related CN211229224U (en) 2019-11-05 2019-11-05 Civil building prevents blockking up drainage structures

Country Status (1)

Country Link
CN (1) CN211229224U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114669411A (en) * 2022-03-15 2022-06-28 苏州新一蓝环保节能工程有限公司 Polyurethane flush coater system
CN115387361A (en) * 2022-08-09 2022-11-25 广东中岩岩土工程技术开发有限公司 Tunnel start and stop point foundation pit construction method for water-rich soil layer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114669411A (en) * 2022-03-15 2022-06-28 苏州新一蓝环保节能工程有限公司 Polyurethane flush coater system
CN115387361A (en) * 2022-08-09 2022-11-25 广东中岩岩土工程技术开发有限公司 Tunnel start and stop point foundation pit construction method for water-rich soil layer
CN115387361B (en) * 2022-08-09 2023-08-11 广东中岩岩土工程技术开发有限公司 Tunnel start-stop foundation pit construction method for water-rich soil layer

Similar Documents

Publication Publication Date Title
CN209025172U (en) Municipal drain for sponge urban construction
CN211229224U (en) Civil building prevents blockking up drainage structures
CN209891338U (en) Backwashing sewage lifting equipment
CN204563744U (en) Fore filter
CN201581434U (en) Rainwater recycling filter
CN207892011U (en) Automatic flow abandoning rainwater-collecting subdivision system with solid and liquid separation function
CN216201599U (en) Heating power pipeline scrubbing water discharging device
CN106567439A (en) Negative pressure type inhaling water-saving pedestal pan
CN107524222A (en) With abandoned stream, cut dirty and automatic cleaning function rain inlet structure
CN209053218U (en) A kind of anti-hair floor drain
CN214531023U (en) Urban rainwater collection and utilization device
CN211486659U (en) Advection precipitation water-collecting device
CN210685208U (en) An energy-saving house building drainage system
CN211172290U (en) Gutter inlet filtering and dirt-intercepting hanging basket capable of improving discharged water quality and easy to clean
CN208884695U (en) A kind of anti-block apparatus of the pre-buried pipeline of water conservancy
CN108786221A (en) A kind of waste water filtering processing internal lining pipe
CN210048558U (en) Novel building water supply and drainage device
CN210216640U (en) An anti-clogging device for building water supply and drainage
CN218148695U (en) Anti-clogging structure for building water supply and drainage
CN211620063U (en) Biological filter with filtering water distribution plate
CN208965668U (en) A kind of plumbing preventing clogging up device for building
CN214329193U (en) Unilateral quick detach floor drain
CN211328376U (en) Environment-friendly domestic wastewater guiding device
CN221972590U (en) A backflow prevention drainage pipe
CN220695940U (en) Sidestream unpowered purification device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200811

CF01 Termination of patent right due to non-payment of annual fee