A filter screen structure for a municipal drainage ditch
By setting side grooves and side plates on both sides of the filter screen, the problem of impurity accumulation in the gap between the filter screen and the side wall of the ditch is solved, realizing the guidance of impurities and convenient cleaning, and ensuring the normal operation of the drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG TIANYE CONSTR CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-08-04
AI Technical Summary
The gaps between the filter screen and the side wall of the municipal drainage ditch and the flat filter screen create a problem where impurities can easily accumulate and backflow can occur during cleaning, affecting the drainage function.
Side grooves and side plates are provided on both sides of the filter screen. The side plates rotate around the connecting shaft to fit the side wall of the ditch, forming a guide structure. The inclined side plates guide impurities and push them into the filter screen. At the same time, cleaning components are provided on the surface of the filter screen for easy cleaning.
It effectively eliminates the gap between the filter screen and the side wall of the ditch, prevents the accumulation of impurities, simplifies the cleaning process, and ensures smooth drainage.
Smart Images

Figure CN224585424U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of municipal drainage technology, specifically relating to a filter screen structure for municipal drainage ditches. Background Technology
[0002] The filter structure of municipal drainage ditches is an important facility to ensure the smooth operation of urban drainage systems and the initial filtration of water quality. It is generally supported by a high-strength and corrosion-resistant frame, which provides a stable foundation for the overall structure. The frame is carefully arranged with fine and sturdy filter materials, such as stainless steel wire mesh or high-strength plastic mesh. These filter materials can effectively intercept larger particles of impurities such as leaves, garbage, and silt that flow into the drainage ditches with rainwater or sewage, preventing them from entering the drainage pipes and causing blockages.
[0003] In current municipal drainage ditch filter installations, the filters are mostly laid flat. This method has certain drawbacks. Because the filters are flat, their sides cannot effectively protect against impurities on the ditch sidewalls. In actual use, gaps inevitably exist between the filters and the ditch sidewalls. When water containing impurities flows through, some of the impurities accumulate in these gaps. Over time, more and more impurities accumulate in these gaps. When cleaning the filters is required, the impurities that were originally accumulated in the gaps can be re-entered into the ditch due to the movement of the filters or the impact of the water flow. This not only increases the difficulty of cleaning but also adversely affects the normal drainage function of the ditch. Utility Model Content
[0004] The purpose of this utility model is to provide a filter screen structure for municipal drainage ditches to solve the problem mentioned in the background art, where the filter screen laid on the surface of municipal drainage ditches has gaps where debris can accumulate, and backflow is easy to occur during cleaning, thus affecting drainage.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter screen structure for municipal drainage ditches, comprising a filter screen body; side grooves are provided on both sides of the filter screen body; a side plate is provided inside the side groove, and a connecting shaft is connected between the outer end of the side plate and the outer opening of the side groove, the side plate rotating around the axis of the connecting shaft; during installation, the side groove is rotated around the connecting shaft, so that the connecting shaft fits against the side wall of the ditch, thereby eliminating the gap between the filter screen body and the ditch, and the inclined side plate can guide the sewage containing impurities and achieve filtration, while under the subsequent water flow, the impurities can be pushed into the filter screen body and the side groove; the surface of the side plate is provided with filter holes identical to the surface of the filter screen body.
[0006] Preferably, the depth of the side groove is equal to the thickness of the side plate, and the side plate is in an inclined state when open, that is, the side plate cannot be opened to a flat state during use, otherwise it will be impossible to guide impurities.
[0007] Preferably, the surface of the filter body is further provided with a square hole, into which a cleaning component is inserted. The cleaning component consists of a connector and a striking component. The connector passes through the filter body, and the striking component is located at one end of the connector. When the filter body is removed for cleaning, the connector is pulled, causing the striking component to impact the filter body, thereby vibrating and dislodging the impurities remaining on the filter body, achieving rapid cleaning.
[0008] Preferably, the connector is a connecting post that passes through a square hole, and the striking element is fixed at one end of the connecting post.
[0009] Preferably, the striking element includes an end plate fixed to one end face of the connecting column, and striking columns are fixed at the four corners of the inner side of the end plate. The striking columns collide with the surface of the filter body under the pull of the connecting column, thereby vibrating and carrying away the impurities on the filter body.
[0010] Preferably, a limiting plate is provided at the other end of the connecting column. The surface of the limiting plate has a through groove that fits on the connecting column. Tightening bolts are screwed into both sides of the limiting plate. The tightening bolts pass through the through groove and abut against the side of the connecting column. The limiting plate limits the connecting column and prevents the connecting column from detaching from the filter body.
[0011] Preferably, after the filter body is laid, the end plate is located on the upper surface of the filter body; the striking post is connected to the upper surface of the filter body and is offset from the filter holes of the filter body to avoid affecting normal filtration.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] By adding side plates to both sides of the filter screen, the originally flat filter screen can unfold on both sides with the help of the side plates, allowing it to adhere tightly to the side wall of the ditch. This effectively eliminates the gap that originally existed between the filter screen and the ditch side wall. In this way, a guiding structure is formed between the ditch and the side of the filter screen. When water containing impurities flows through, the guiding structure can guide the water flow and impurities, preventing impurities from accumulating in the gap between the filter screen and the ditch side wall. Even if the filter screen needs to be cleaned later, since the gap has been eliminated and a guiding structure has been formed, impurities that were originally in the gap position will not re-enter the ditch due to the movement of the filter screen or the impact of the water flow, thus avoiding the impurities from adversely affecting the normal drainage of the ditch. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a bottom view of the present invention;
[0016] Figure 3 This is a schematic diagram of the cleaning component of this utility model.
[0017] In the picture:
[0018] 100. Filter body; 101. Side groove;
[0019] 200. Side plate; 201. Connecting shaft;
[0020] 300. End plate; 301. Striking post; 302. Connecting post; 303. Limiting plate; 304. Through groove; 305. Tightening bolt. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 3 This utility model provides a technical solution: a filter screen structure for municipal drainage ditches, comprising...
[0023] Filter body 100;
[0024] Side grooves 101 are provided on both sides of the filter body 100;
[0025] The side channel 101 is provided with a side plate 200. The outer end of the side plate 200 is connected to the outer opening of the side channel 101 by a connecting shaft 201. The side plate 200 rotates around the axis of the connecting shaft 201. During installation, the side channel 101 is rotated around the connecting shaft 201 so that the connecting shaft 201 fits against the side wall of the water channel, thereby eliminating the gap between the filter screen body 100 and the water channel. The inclined side plate 200 can guide the sewage with impurities and achieve filtration. At the same time, under the subsequent water flow, the impurities can be pushed into the filter screen body 100 and the side channel 101.
[0026] The side plate 200 has filter holes on its surface that are the same as those on the surface of the filter body 100.
[0027] In this embodiment, preferably, the depth of the side groove 101 is equal to the thickness of the side plate 200, and the side plate 200 is in an inclined state when it is open. That is, the side plate 200 cannot be opened to a flat state during use, otherwise it will be impossible to guide impurities.
[0028] In this embodiment, preferably, the surface of the filter body 100 is also provided with a square hole, into which a cleaning component is inserted. The cleaning component consists of a connector and a striking component. The connector passes through the filter body 100, and the striking component is located at one end of the connector. When the filter body 100 is removed for cleaning, the connector is pulled, causing the striking component to impact the filter body 100, thereby vibrating and dislodging the impurities remaining on the filter body 100, thus achieving rapid cleaning.
[0029] In this embodiment, preferably, the connector is a connecting post 302 that passes through a square hole, and the striking element is fixed at one end of the connecting post 302.
[0030] In this embodiment, preferably, the striking element includes an end plate 300 fixed to one end face of the connecting column 302, and striking columns 301 are fixed at the four corners of the inner side of the end plate 300. The striking columns 301 impact the surface of the filter body 100 under the pull of the connecting column 302, thereby vibrating and carrying away the impurities on the filter body 100.
[0031] In this embodiment, preferably, a limiting plate 303 is also provided at the other end of the connecting column 302. The surface of the limiting plate 303 is provided with a through groove 304 that is sleeved on the connecting column 302. Abutting bolts 305 are screwed into both sides of the limiting plate 303. The abutting bolts 305 penetrate into the through groove 304 and abut against the side of the connecting column 302. The limiting plate 303 is used to limit the connecting column 302 and prevent the connecting column 302 from separating from the filter body 100.
[0032] In this embodiment, preferably, after the filter body 100 is laid, the end plate 300 is located on the upper surface of the filter body 100; the striking post 301 is connected to the upper surface of the filter body 100 and is misaligned with the filter holes of the filter body 100 to avoid affecting normal filtration.
[0033] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A filter screen structure for municipal drainage ditches, comprising: Filter body (100); Its features are: Side grooves (101) are provided on both sides of the filter body (100). A side plate (200) is provided inside the side groove (101). A connecting shaft (201) is connected between the outer end of the side plate (200) and the outer opening of the side groove (101). The side plate (200) rotates around the axis of the connecting shaft (201). The side plate (200) has filter holes on its surface that are the same as those on the surface of the filter body (100).
2. The filter screen structure for a municipal drainage ditch according to claim 1, characterized in that: The depth of the side groove (101) is equal to the thickness of the side plate (200), and the side plate (200) is in an inclined state when open.
3. The filter screen structure for a municipal drainage ditch according to claim 1, characterized in that: The surface of the filter body (100) is also provided with a square hole, into which a cleaning component is inserted. The cleaning component consists of a connector and a striking component, wherein the connector passes through the filter body (100), and the striking component is located at one end of the connector.
4. The filter screen structure for a municipal drainage ditch according to claim 3, characterized in that: The connector is a connecting post (302) that passes through a square hole, and the striking element is fixed at one end of the connecting post (302).
5. The filter screen structure for a municipal drainage ditch according to claim 4, characterized in that: The striking component includes an end plate (300) fixed to one end face of the connecting column (302), and striking columns (301) are fixed at the four corners of the inner side of the end plate (300). The striking columns (301) impact the surface of the filter body (100) under the pull of the connecting column (302).
6. The filter screen structure for a municipal drainage ditch according to claim 4, characterized in that: The other end of the connecting column (302) is also provided with a limiting plate (303). The surface of the limiting plate (303) is provided with a through groove (304) that is sleeved on the connecting column (302). The two sides of the limiting plate (303) are also screwed with abutting bolts (305). The abutting bolts (305) penetrate into the through groove (304) and abut against the side of the connecting column (302).
7. The filter screen structure for a municipal drainage ditch according to claim 5, characterized in that: After the filter body (100) is laid, the end plate (300) is located on the upper surface of the filter body (100); the striking post (301) is connected to the upper surface of the filter body (100) and is offset from the filter holes of the filter body (100).