CN206971347U - A kind of drainage system sewer well - Google Patents

A kind of drainage system sewer well Download PDF

Info

Publication number
CN206971347U
CN206971347U CN201720413770.8U CN201720413770U CN206971347U CN 206971347 U CN206971347 U CN 206971347U CN 201720413770 U CN201720413770 U CN 201720413770U CN 206971347 U CN206971347 U CN 206971347U
Authority
CN
China
Prior art keywords
borehole wall
well
interior
well wall
helical blade
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
CN201720413770.8U
Other languages
Chinese (zh)
Inventor
彭敏
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.)
Sichuan College of Architectural Technology
Original Assignee
Sichuan College of Architectural Technology
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 Sichuan College of Architectural Technology filed Critical Sichuan College of Architectural Technology
Priority to CN201720413770.8U priority Critical patent/CN206971347U/en
Application granted granted Critical
Publication of CN206971347U publication Critical patent/CN206971347U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Centrifugal Separators (AREA)

Abstract

本实用新型公开了一种排水系统用下水道井,包括环形的井壁围绕形成的下水井、分别与下水井连通的进水通道和出水通道,所述的进水通道与下水井的连通处高于出水通道与下水井的连通处,所述的下水井内设置有具有过滤功能的内井壁;所述的内井壁与井壁之间形成的空间与出水通道密封。本实用新型的有益效果是:本实用新型能够有效防止下水井被堵塞,从而避免污水的流通受到影响,还能够方便清理固态杂质、沉淀或淤积物,有利于降低工作人员的劳动强度。

The utility model discloses a sewer well for a drainage system, which comprises a sewer well formed by an annular well wall, a water inlet channel and a water outlet channel respectively connected with the sewer well, and the connection between the water inlet channel and the sewer well is high At the connection between the water outlet channel and the lower water well, the inner well wall with filtering function is arranged in the lower water well; the space formed between the inner well wall and the well wall is sealed with the water outlet channel. The beneficial effects of the utility model are: the utility model can effectively prevent the sewer well from being blocked, thereby avoiding the circulation of sewage from being affected, and can also facilitate the cleaning of solid impurities, sediments or silts, which is beneficial to reducing the labor intensity of workers.

Description

一种排水系统用下水道井sewer well for drainage system

技术领域technical field

本实用新型涉及下水道领域,具体的说,是一种排水系统用下水道井。The utility model relates to the field of sewers, in particular to a sewer well for a drainage system.

背景技术Background technique

下水道是建筑物排除污水和雨水的管道,以及城市、厂区或村庄排除污水和雨水的地下通道。Sewers are pipes that remove sewage and rainwater from buildings, and underground passages that drain sewage and rainwater from cities, factories or villages.

下水道在长时间工作后,其内部会产生淤泥堆积,淤泥是有污水中携带的固体物质沉淀形成,因为污水在下水道中流动的过程,比重大的固体物质流速慢,慢慢就成沉淀在管道内壁上,从而使得管道内壁内径缩小,影响下水排放,并且容易造成堵塞,需要定期人工清理淤泥,操作量大,维护成本高。After the sewer works for a long time, silt will accumulate inside it. The silt is formed by the precipitation of solid substances carried in the sewage. Because the process of sewage flowing in the sewer is slower than the flow rate of heavy solid substances, it will slowly become sediment in the pipeline. On the inner wall, the inner diameter of the inner wall of the pipeline is reduced, affecting the drainage of the sewage, and it is easy to cause blockage. Regular manual cleaning of the sludge is required, which requires a large amount of operation and high maintenance costs.

实用新型内容Utility model content

本实用新型的目的在于提供一种有利于防止固态杂质淤积而造成堵塞的排水系统用下水道井。The purpose of the utility model is to provide a sewer well for a drainage system which is beneficial to prevent the clogging caused by the deposition of solid impurities.

本实用新型通过下述技术方案实现:一种排水系统用下水道井,包括环形的井壁围绕形成的下水井、分别与下水井连通的进水通道和出水通道,所述的进水通道与下水井的连通处高于出水通道与下水井的连通处,所述的下水井内设置有用于对固态杂质进行过滤的内井壁;所述的内井壁与井壁之间形成的空间与出水通道密封。本实用新型通过设置内井壁能够起到滤除固态杂质的作用,通过将固态杂质隔离在内井壁外侧能够防止下水道整体的流通被堵塞。The utility model is realized through the following technical solutions: a sewer well for a drainage system, comprising a sewer well formed around an annular well wall, a water inlet channel and a water outlet channel respectively connected with the sewer well, the water inlet channel and the lower water channel The connection of the water well is higher than the connection between the water outlet channel and the lower water well, and the inner well wall for filtering solid impurities is arranged in the lower water well; the space formed between the inner well wall and the well wall and the water outlet channel seal. The utility model can play the role of filtering out solid impurities by setting the inner well wall, and can prevent the overall circulation of the sewer from being blocked by isolating the solid impurities outside the inner well wall.

所述的内井壁与出水通道之间设置有用于隔离内井壁与出水通道的不锈钢制成的底板;所述的内井壁采用钢丝网呈环形围绕形成,所述的内井壁焊接在底板上;所述的底板上设置有连通内井壁内部空间与出水通道的开口。以此能够提高内井壁的连接强度以及内井壁整体的刚性,并且使得内井壁更方便安装。A bottom plate made of stainless steel for isolating the inner well wall and the water outlet channel is provided between the inner well wall and the water outlet channel; the inner well wall is formed by ring-shaped steel wire mesh, and the inner well wall is welded The bottom plate; the bottom plate is provided with an opening connecting the inner space of the inner well wall and the water outlet channel. In this way, the connection strength of the inner well wall and the overall rigidity of the inner well wall can be improved, and the installation of the inner well wall is more convenient.

所述的内井壁内设置有滤网层。以此提高过滤的精度,减少进入到内井壁内的固态杂质,从而有利于防止内井壁和出水通道被堵塞。A screen layer is arranged in the inner well wall. In this way, the accuracy of filtration is improved, and solid impurities entering the inner well wall are reduced, thereby helping to prevent the inner well wall and the water outlet channel from being blocked.

所述的内井壁与井壁之间设置有用于收集固态杂质的刮除装置。以此有利于清理内井壁与井壁之间的固态杂质、沉淀或淤积物。A scraping device for collecting solid impurities is arranged between the inner well wall and the well wall. In this way, it is beneficial to clean up solid impurities, precipitation or silt between the inner well wall and the well wall.

所述的刮除装置包括设置在内井壁与井壁之间的螺旋叶片和驱动螺旋叶片转动的驱动装置。通过转动螺旋叶片就能够将内井壁与井壁之间的固态杂质、沉淀或淤积物自动带出,从而方便后期的收集与清理,有利于减小工作人员的劳动强度,并且使得清理更加方便快捷。The scraping device includes a helical blade arranged between the inner well wall and the well wall and a driving device for driving the helical blade to rotate. By turning the helical blade, the solid impurities, sediment or silt between the inner well wall and the well wall can be automatically taken out, so as to facilitate the later collection and cleaning, help reduce the labor intensity of the staff, and make cleaning more convenient fast.

所述的螺旋叶片的转动方向与螺旋叶片向下螺旋的方向相同。以此便于固态杂质、沉淀或淤积物顺着螺旋叶片向上移动而被带出下水井。The rotation direction of the spiral blade is the same as the downward spiral direction of the spiral blade. This makes it easier for solid impurities, sediment or silt to move upwards along the helical blades and be taken out of the downhole.

所述的驱动装置包括设置在内井壁上的内井盖和与内井盖转动连接的转轴;所述的转轴与螺旋叶片固定连接。以此方便通过驱动转轴转动来带动螺旋叶片转动,使得螺旋叶片的转动更加方便快捷,有利于实现机械驱动,从而降低工作人员的劳动强度。The driving device includes an inner well cover arranged on the inner well wall and a rotating shaft rotatably connected with the inner well cover; the rotating shaft is fixedly connected with the helical blade. In this way, it is convenient to drive the helical blade to rotate by driving the rotation of the rotating shaft, so that the rotation of the helical blade is more convenient and fast, which is beneficial to realize the mechanical drive, thereby reducing the labor intensity of the staff.

所述的转轴与内井盖之间设置有轴承;所述的转轴的自由端设置有手柄。通过设置轴承,能够减小转轴与内井盖之间的磨损,从而延长转轴的使用寿命,并将转周瑜内井盖之间的摩擦力,从而使得转动更加快速顺畅。A bearing is arranged between the rotating shaft and the inner well cover; a handle is arranged at the free end of the rotating shaft. By arranging the bearing, the wear between the rotating shaft and the inner manhole cover can be reduced, thereby prolonging the service life of the rotating shaft, and reducing the friction between the rotating shaft and the inner manhole cover, so that the rotation is faster and smoother.

所述的螺旋叶片与内井壁之间设置有安装在螺旋叶片上并带有刷毛的刷杆。以此能够在使用螺旋叶片清理固态杂质、沉淀或淤积物的同时,能够将残留在内井壁上的固态杂质、沉淀或淤积物一起刮除下来并随着螺旋叶片被清理出去,有利于防止内井壁因为残留的固态杂质、沉淀或淤积物而被堵塞。A brush rod mounted on the spiral blade and with bristles is arranged between the spiral blade and the inner well wall. In this way, while using the spiral blade to clean up solid impurities, sediment or silt, the solid impurities, sediment or silt remaining on the inner shaft wall can be scraped off together and cleaned out with the helical blade, which is beneficial to prevent The inner well wall is blocked by residual solid impurities, sediment or silt.

本实用新型与现有技术相比,具有以下优点及有益效果:Compared with the prior art, the utility model has the following advantages and beneficial effects:

本实用新型能够有效防止下水井被堵塞,从而避免污水的流通受到影响,还能够方便清理固态杂质、沉淀或淤积物,有利于降低工作人员的劳动强度。The utility model can effectively prevent the sewer well from being blocked, thereby avoiding the influence on the circulation of sewage, and can also facilitate the cleaning of solid impurities, sediments or deposits, which is beneficial to reducing the labor intensity of workers.

附图说明Description of drawings

图1为本实用新型的结构示意图;Fig. 1 is the structural representation of the utility model;

其中1—出水通道,2—内井壁,3—井壁,4—刷杆,5—内井盖,6—手柄,7—转轴,8—轴承,9—进水通道,10—螺旋叶片,11—滤网层,12—底板。Among them, 1—water outlet channel, 2—inner well wall, 3—well wall, 4—brush rod, 5—inner well cover, 6—handle, 7—rotating shaft, 8—bearing, 9—water inlet channel, 10—spiral blade, 11—filter screen layer, 12—bottom plate.

具体实施方式Detailed ways

下面结合实施例对本实用新型作进一步地详细说明,但本实用新型的实施方式不限于此。The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto.

实施例1:Example 1:

如图1所示,本实施例中,一种排水系统用下水道井,包括环形的井壁3围绕形成的下水井、分别与下水井连通的进水通道9和出水通道1,所述的进水通道9与下水井的连通处高于出水通道1与下水井的连通处,所述的下水井内设置有具有过滤功能的内井壁2;所述的内井壁2与井壁3之间形成的空间与出水通道1密封。通过设置内井壁2能够在内井壁2与井壁3之间形成缓冲带,从而降低污水的流速,使得污水中的污泥或其他固态杂质能够沉积在内井壁2与井壁3之间的空间,液态的污水穿过内井壁2进入到出水通道1内,从而防止污水的流通被堵塞。井壁3外侧根据需要能够挖设空间以增加内井壁2外侧的容积从而增加污泥或其他固态杂质的收集量。所述的下水井的上端安装有窨井盖。As shown in Figure 1, in this embodiment, a sewer well for a drainage system includes a sewer well formed around an annular well wall 3, a water inlet channel 9 and an outlet channel 1 respectively communicated with the sewer well. The connection between the water channel 9 and the lower well is higher than the connection between the water outlet channel 1 and the lower well, and the inner well wall 2 with filtering function is arranged in the lower water well; The formed space is sealed with the water outlet channel 1. By setting the inner well wall 2, a buffer zone can be formed between the inner well wall 2 and the well wall 3, thereby reducing the flow rate of the sewage, so that the sludge or other solid impurities in the sewage can be deposited between the inner well wall 2 and the well wall 3 The liquid sewage passes through the inner well wall 2 and enters the water outlet channel 1, thereby preventing the flow of sewage from being blocked. A space can be dug outside the well wall 3 as required to increase the volume outside the inner well wall 2 so as to increase the amount of sludge or other solid impurities collected. The upper end of the said sewer well is equipped with a manhole cover.

本实施例中,所述的内井壁2与出水通道1之间设置有不锈钢制成的底板12,将底板12安装在井壁3内,实现下水井与出水通道1的隔离。所述的内井壁2采用钢丝网呈环形围绕,并将内井壁2焊接在底板12上;所述的底板12上设置有连通内井壁2内部空间与出水通道1的开口,以此实现内井壁2内部空间与出水通道1的连通。通过将钢丝网形成的内井壁2焊接在底板12上,能够提高内井壁2的连接强度以及内井壁2整体的刚性,并且使得内井壁2更方便安装。In this embodiment, a bottom plate 12 made of stainless steel is provided between the inner well wall 2 and the water outlet channel 1 , and the bottom plate 12 is installed in the well wall 3 to realize the isolation of the lower well and the water outlet channel 1 . The inner well wall 2 is surrounded by steel wire mesh in a ring shape, and the inner well wall 2 is welded on the bottom plate 12; the bottom plate 12 is provided with an opening communicating with the inner space of the inner well wall 2 and the water outlet channel 1, so that The communication between the inner space of the inner well wall 2 and the water outlet channel 1 is realized. By welding the inner well wall 2 formed of steel wire mesh on the bottom plate 12, the connection strength of the inner well wall 2 and the overall rigidity of the inner well wall 2 can be improved, and the inner well wall 2 can be installed more conveniently.

实施例2:Example 2:

在上述实施例的基础上,本实施例中,所述的内井壁2内设置有滤网层11。滤网层11采用更加密集的钢丝网呈环形围绕形成,也可采用其他具有过滤功能的结构形成。以此能够提高过滤的精度,减少进入到内井壁2内的固态杂质,从而有利于防止内井壁2和出水通道1被堵塞。本实施例中,其他未描述的部分与上述实施例的内容相同,故不赘述。On the basis of the above embodiments, in this embodiment, the inner well wall 2 is provided with a filter layer 11 . The filter layer 11 is formed by a denser steel wire mesh in a ring shape, and can also be formed by other structures with filtering functions. In this way, the filtration accuracy can be improved, and solid impurities entering the inner well wall 2 can be reduced, thereby helping to prevent the inner well wall 2 and the water outlet channel 1 from being blocked. In this embodiment, other parts not described are the same as those in the foregoing embodiments, so details are not repeated here.

实施例3:Example 3:

在上述实施例的基础上,本实施例中,所述的内井壁2与井壁3之间设置有用于收集固态杂质的刮除装置。所述的刮除装置包括设置在内井壁2与井壁3之间的螺旋叶片10和驱动螺旋叶片10转动的驱动装置。通过设置刮除装置有利于清理内井壁2与井壁3之间的固态杂质、沉淀或淤积物。利用螺旋叶片10的转动就能够将内井壁与井壁之间的固态杂质、沉淀或淤积物自动带出,从而方便后期的收集与清理,有利于减小工作人员的劳动强度,并且使得清理更加方便快捷。本实施例中,所述的螺旋叶片10的转动方向与螺旋叶片10向下螺旋的方向相同。以此当螺旋叶片10转动时能够将固态杂质、沉淀或淤积物向上带出,如果螺旋叶片10的转动方向与螺旋叶片10向下螺旋的方向相反,则会将固态杂质、沉淀或淤积物等向下挤压而无法带离下水井。本实施例中,其他未描述的部分与上述实施例的内容相同,故不赘述。On the basis of the above embodiments, in this embodiment, a scraping device for collecting solid impurities is provided between the inner well wall 2 and the well wall 3 . The scraping device includes a helical blade 10 arranged between the inner well wall 2 and the well wall 3 and a driving device for driving the helical blade 10 to rotate. The arrangement of the scraping device facilitates the cleaning of solid impurities, sediments or deposits between the inner well wall 2 and the well wall 3 . The rotation of the helical blade 10 can automatically take out the solid impurities, sediment or silt between the inner well wall and the well wall, so as to facilitate the collection and cleaning in the later stage, help reduce the labor intensity of the staff, and make the cleaning More convenient and faster. In this embodiment, the rotation direction of the spiral blade 10 is the same as the downward spiral direction of the spiral blade 10 . In this way, when the screw blade 10 rotates, the solid impurities, precipitation or silt can be taken out upwards. If the direction of rotation of the screw blade 10 is opposite to the downward spiral direction of the screw blade 10, the solid impurities, precipitation or silt, etc. will be taken out. Squeeze down and cannot be taken out of the drain. In this embodiment, other parts not described are the same as those in the foregoing embodiments, so details are not repeated here.

实施例4:Example 4:

在上述实施例的基础上,本实施例中,所述的驱动装置包括设置在内井壁2上的内井盖5和与内井盖5转动连接的转轴7;所述的转轴7与螺旋叶片10固定连接。所述的转轴7与内井盖5之间设置有轴承8;所述的转轴7的自由端设置有手柄6。以此通过转动手柄6就能够带动转轴7转动,从而带动螺旋叶片10转动。本实施例中,其他未描述的部分与上述实施例的内容相同,故不赘述。On the basis of the above-mentioned embodiments, in this embodiment, the drive device includes an inner well cover 5 arranged on the inner well wall 2 and a rotating shaft 7 that is rotatably connected with the inner well cover 5; Fixed connection. A bearing 8 is provided between the rotating shaft 7 and the inner well cover 5 ; a handle 6 is provided at the free end of the rotating shaft 7 . In this way, by turning the handle 6, the rotating shaft 7 can be driven to rotate, thereby driving the spiral blade 10 to rotate. In this embodiment, other parts not described are the same as those in the foregoing embodiments, so details are not repeated here.

实施例5:Example 5:

在上述实施例的基础上,本实施例中,所述的螺旋叶片10与内井壁2之间设置有安装在螺旋叶片10上并带有刷毛的刷杆4。以此能够在使用螺旋叶片10清理固态杂质、沉淀或淤积物的同时,能够将残留在内井壁2上的固态杂质、沉淀或淤积物一起刮除下来并随着螺旋叶片10的转动被清理出去,有利于防止内井壁2因为残留的固态杂质、沉淀或淤积物而被堵塞。On the basis of the above embodiments, in this embodiment, a brush rod 4 mounted on the helical blade 10 and with bristles is arranged between the helical blade 10 and the inner well wall 2 . In this way, while using the spiral blade 10 to clean up the solid impurities, sediment or silt, the solid impurities, sediment or silt remaining on the inner well wall 2 can be scraped off together and cleaned up with the rotation of the spiral blade 10 It is beneficial to prevent the inner well wall 2 from being blocked due to residual solid impurities, precipitation or silt.

以上所述,仅是本实用新型的较佳实施例,并非对本实用新型做任何形式上的限制,凡是依据本实用新型的技术实质对以上实施例所作的任何简单修改、等同变化,均落入本实用新型的保护范围之内。The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification or equivalent change made to the above embodiments according to the technical essence of the utility model falls within the scope of the present utility model. Within the protection scope of the present utility model.

Claims (5)

1. a kind of drainage system sewer well, include the borehole wall of annular(3)Lower well around formation, connect respectively with lower well Logical intake tunnel(9)And exhalant canal(1), described intake tunnel(9)It is higher than exhalant canal with the connectivity part of lower well(1) With the connectivity part of lower well, it is characterised in that:The interior well for being filtered to solid impurity is provided with described lower well Wall(2);The described interior borehole wall(2)With the borehole wall(3)Between the space that is formed and exhalant canal(1)Sealing;The described interior borehole wall(2) With exhalant canal(1)Between be provided with for isolating the interior borehole wall(2)With exhalant canal(1)Stainless steel made of bottom plate(12); The described interior borehole wall(2)Using steel wire in a ring around formation, the described interior borehole wall(2)It is welded on bottom plate(12)On;It is described Bottom plate(12)On be provided with connection in the borehole wall(2)Inner space and exhalant canal(1)Opening;The described interior borehole wall(2)It is interior It is provided with filter mesh layer(11);The described interior borehole wall(2)With the borehole wall(3)Between be provided with and strike off dress for collect solid impurity Put;Described removing device includes being arranged on the interior borehole wall(2)With the borehole wall(3)Between helical blade(10)With driving helical blade (10)The drive device of rotation.
A kind of 2. drainage system sewer well according to claim 1, it is characterised in that:Described helical blade(10) Rotation direction and helical blade(10)The direction of downward spiral is identical.
A kind of 3. drainage system sewer well according to claim 1 or 2, it is characterised in that:Described drive device Including being arranged on the interior borehole wall(2)On interior well lid(5)With with interior well lid(5)The rotating shaft of rotation connection(7);Described rotating shaft(7) With helical blade(10)It is fixedly connected.
A kind of 4. drainage system sewer well according to claim 3, it is characterised in that:Described rotating shaft(7)With it is interior Well lid(5)Between be provided with bearing(8);Described rotating shaft(7)Free end be provided with handle(6).
A kind of 5. drainage system sewer well according to any one of claim 1,2,4, it is characterised in that:Described Helical blade(10)With the interior borehole wall(2)Between be provided with installed in helical blade(10)Go up and carry the brush holder support of bristle(4).
CN201720413770.8U 2017-04-19 2017-04-19 A kind of drainage system sewer well Expired - Fee Related CN206971347U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720413770.8U CN206971347U (en) 2017-04-19 2017-04-19 A kind of drainage system sewer well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720413770.8U CN206971347U (en) 2017-04-19 2017-04-19 A kind of drainage system sewer well

Publications (1)

Publication Number Publication Date
CN206971347U true CN206971347U (en) 2018-02-06

Family

ID=61412375

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720413770.8U Expired - Fee Related CN206971347U (en) 2017-04-19 2017-04-19 A kind of drainage system sewer well

Country Status (1)

Country Link
CN (1) CN206971347U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098270A (en) * 2018-09-20 2018-12-28 王凤兰 One kind being used for municipal sewage draw-out device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098270A (en) * 2018-09-20 2018-12-28 王凤兰 One kind being used for municipal sewage draw-out device
CN109098270B (en) * 2018-09-20 2020-08-18 鹏图建设有限公司 Be used for municipal sewage draw-out device

Similar Documents

Publication Publication Date Title
CN209025186U (en) A kind of environment-friendly type road drainage system in civil engineering
CN205577000U (en) Novel water conservancy is arranged and is become silted up device
CN108379895A (en) Rainwater collection header automatic sand discharging device
CN205577089U (en) Rainwater cuts dirty basket device of hanging
CN206971347U (en) A kind of drainage system sewer well
CN204112476U (en) Shunting abandoned stream filter
CN211799343U (en) Hydraulic engineering filter equipment
CN117486432B (en) Integrated buried domestic sewage treatment system and process thereof
CN211395814U (en) Roof rainwater collecting device
CN204343438U (en) A kind of multi-functional sewage process well
CN218589823U (en) A Municipal Road Drainage Filtration System
CN208815647U (en) A kind of water pipeline for hydraulic engineering
CN208553315U (en) A kind of sewage treatment equipment for separating liquid from solid
CN208145561U (en) Rainwater collection header automatic sand discharging device
CN218011316U (en) Rural integration filter
CN206829267U (en) A kind of anti-clogging PVC drain pipe road for building
KR101052392B1 (en) Non-powered level cleaning device
CN104606934A (en) Unpowered self-cleaning rainwater filtering method
CN212295373U (en) An anti-blocking filter device for roof drainage
CN220318723U (en) Assembled functional well for water supply and drainage engineering
CN114790765A (en) A rainwater collection and circulation device for ecological gardens
CN222949167U (en) Rainwater inspection well
CN220580146U (en) Building water supply and drainage anti-blocking device
CN112144636A (en) Drainage pipeline centralized dredging device and dredging method thereof
CN206681117U (en) A kind of set well for solving rain sewage pipe conflict

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: 20180206

Termination date: 20210419

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