Water inlet filtering device of building drainage pipe
By designing a combination structure of debris collection plate and inclined filter screen at the water inlet of the building drainage pipe, the problem of easy clogging of the filter screen is solved, achieving efficient debris filtration and reducing cleaning frequency, thus improving drainage efficiency.
Patent Information
- Application Number
- CN202520570206.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The filters in existing building drainage pipes are easily clogged by debris, which reduces water permeability and requires frequent cleaning, thus affecting drainage efficiency.
A water inlet filtration device for building drainage pipes was designed, which uses a debris collection plate and multiple staggered inclined filter screens. The inclined filter screens guide the debris and perform multi-stage filtration, increasing the debris retention space and preventing debris from directly accumulating at the filter head of the drainage pipe.
This effectively increases the filtration capacity of the filter before it becomes clogged, reduces the frequency of cleaning the filter by staff, and maintains the efficient drainage performance of the drain pipe.
Smart Images
Figure CN223930808U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building drainage pipe technology, specifically relating to a water inlet filtration device for building drainage pipes. Background Technology
[0002] Drainage pipes extending downwards are installed at the top of buildings to discharge rainwater. Due to debris blown up by strong winds at the top of buildings, filters are installed at the top of the drainage pipes to filter the debris. However, in actual use, the water flow causes the water inlet of the debris box drainage pipe to flow. After the debris is intercepted by the filter, it will accumulate at the water inlet of the drainage pipe. As the amount of debris increases, it will block the subsequent water flow, causing the water permeability of the filter to decrease and affecting the drainage efficiency of the drainage pipe. It is necessary for staff to clean the filter of the drainage pipe frequently. Utility Model Content
[0003] This utility model provides a water inlet filtration device for building drainage pipes, which effectively increases the filtration capacity of the filtration device before it becomes clogged, so that workers do not need to clean the filtration device frequently.
[0004] This utility model provides the following technical solution: a building drainage pipe inlet filtration device, including a drainage pipe filter head, a debris collection plate detachably connected to the outside of the drainage pipe filter head, six staggered inclined filter screens fixedly connected to the top of the debris collection plate, a unidirectional guide plate fixedly connected to one side of the inclined filter screen, two side filter screens fixedly connected to the top of the debris collection plate, the two side filter screens being located on both sides of the drainage pipe filter head, the two side filter screens being fixedly connected to two of the inclined filter screens respectively, and a top filter screen hinged to the top of the debris collection plate.
[0005] The debris collection plate has a filter head insertion hole at its top, and the drain pipe filter head is inserted into the filter head insertion hole.
[0006] The top of the debris collection plate is fixedly connected to a gap support plate, which is located outside the drain pipe filter head.
[0007] The debris collection plate has insertion and positioning holes at all four corners.
[0008] The debris collection plate is fixedly connected to a side interception collection plate at its top, and the top filter screen is fixedly connected to the side interception collection plate.
[0009] The debris collection plate is equipped with an installation groove plate on its outer side, and an inclined water inlet is provided on one side of the installation groove plate.
[0010] The mounting slot plate has a plug-in positioning post installed at its top, and the plug-in positioning post is inserted into the plug-in positioning hole.
[0011] The beneficial effects of this utility model are: by using the debris collection plate and multiple staggered inclined filter screens, the water flow can be filtered in multiple stages, increasing the debris retention space around the drain pipe filter head. The inclined filter screens can also guide the water flow after being blocked by debris. In conjunction with the gaps between the multiple debris collection plates, it can prevent water carrying debris from flowing directly to the drain pipe filter head. At the same time, it can maintain the smooth flow of water and prevent debris from directly accumulating at the drain pipe filter head, affecting the water permeability of the drain pipe filter head. This effectively increases the filtration capacity of the filter device before it is blocked, so that the staff does not need to clean the filter device frequently.
[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0013] Figure 1 This is a top view of the present invention;
[0014] Figure 2 This is a schematic diagram of the structure of the top filter screen plate of this utility model;
[0015] Figure 3 This is a schematic diagram of the debris collection plate in this utility model.
[0016] In the diagram: 1. Drainage pipe filter head; 2. Debris collection plate; 21. Inclined filter screen plate; 22. One-way guide plate; 23. Side filter screen plate; 24. Filter head insertion hole; 25. Gap support plate; 26. Insertion positioning hole; 27. Side interception collection plate; 3. Top filter screen plate; 4. Mounting trough plate; 41. Inclined water inlet; 42. Insertion positioning column. Detailed Implementation
[0017] Please see Figures 1-3 The present invention provides the following technical solution: a building drainage pipe inlet filtration device, including a drainage pipe filter head 1, a debris collection plate 2 detachably connected to the outside of the drainage pipe filter head 1, six staggered inclined filter screens 21 fixedly connected to the top of the debris collection plate 2, a one-way guide plate 22 fixedly connected to one side of the inclined filter screens 21, two side filter screens 23 fixedly connected to the top of the debris collection plate 2, the two side filter screens 23 being located on both sides of the drainage pipe filter head 1 respectively, the two side filter screens 23 being fixedly connected to two of the inclined filter screens 21 respectively, and a top filter screen 3 hinged to the top of the debris collection plate 2.
[0018] In this implementation plan: During installation, a groove is pre-reserved at the top of the drainage pipe. The building structure itself forms the mounting groove 4 and the inclined inlet 41, which face the center of the building. The bottom of the mounting groove 4 and the inclined inlet 41 are sloped to guide the water flow. After installing the drain pipe filter head 1 at the top of the drainage pipe, the debris collection plate 2 is laid on top of the drainage pipe. The filter head insertion hole 24 engages with the drain pipe filter head 1. Four insertion positioning holes 26 are respectively fitted onto the outside of the four side interception collection plates 27. During use, water carrying debris enters the corresponding position of the debris collection plate 2 through the inclined inlet 41, is filtered by the two outermost inclined filter screens 21, and the debris is guided away. The water flows downward through the inclined filter screens 21, and the debris is continuously impacted by the water flow and gathers at the edge of the debris collection plate 2. After the outermost inclined filter screen 21 is blocked, the water carrying debris passes through the gap between the two inclined filter screens 21, and thus the corresponding positions of the two inclined filter screens 21 in the second stage are not blocked due to the debris collection plate 2 being blocked. This prevents the water from flowing smoothly downstream. The inclined filter plates 21, distributed on both sides, intersect to intercept debris, preventing it from flowing in a straight line to the corresponding position of the drain pipe filter head 1. This avoids debris directly accumulating at the drain pipe filter head 1 and affecting its water permeability. As the amount of debris intercepted increases, it sequentially enters the corresponding positions of subsequent inclined filter plates 21 until all inclined filter plates 21 are blocked. The multiple staggered inclined filter plates 21 increase the space for debris to accumulate around the drain pipe filter head 1. This effectively increases the filtration capacity of the filter device before it becomes clogged, eliminating the need for frequent cleaning. The side filter plate 23 works in conjunction with the inclined filter plate 21 to surround the drain pipe filter head 1. The top filter plate 3 prevents debris from being directly scattered and falling onto the drain pipe filter head 1 by the wind. When cleaning the device, the staff lifts the debris collection plate 2 as a whole, opens the top filter plate 3, pours out the impurities remaining in the debris collection plate 2, and then uses water to rinse the remaining debris.
[0019] The top of the debris collection plate 2 is provided with a filter head insertion hole 24, and the drain pipe filter head 1 is inserted into the filter head insertion hole 24. The filter head insertion hole 24 can make way so that the debris collection plate 2 can be fitted on the outside of the drain pipe filter head 1. The diameter of the filter head insertion hole 24 is cut according to the actual size of the drain pipe filter head 1.
[0020] A gap support plate 25 is fixedly connected to the top of the debris collection plate 2. The gap support plate 25 is located outside the drain pipe filter head 1. The gap support plate 25 is set in the empty position outside the drain pipe filter head 1. By setting the gap support plate 25, the top filter screen plate 3 can be supported, and the top filter screen plate 3 is prevented from sinking and affecting the filtration effect at the drain pipe filter head 1.
[0021] The debris collection plate 2 has insertion positioning holes 26 at all four corners; by setting the insertion positioning holes 26, it can cooperate with the insertion positioning post 42 to position the debris collection plate 2 and prevent the debris collection plate 2 from shifting position.
[0022] A side interception collection plate 27 is fixedly connected to the top of the debris collection plate 2, and the top filter plate 3 is fixedly connected to the side interception collection plate 27. By setting the side interception collection plate 27, debris that moves to the edge of the debris collection plate 2 can be intercepted and stored in the debris collection plate 2, so as to facilitate the cleaning of debris by the staff and prevent the debris from falling into the mounting slot plate 4 when the staff lifts the debris collection plate 2.
[0023] An installation groove plate 4 is installed on the outside of the debris collection plate 2. An inclined water inlet 41 is provided on one side of the installation groove plate 4. The installation groove plate 4 can provide a groove to reduce the horizontal height of the debris collection plate 2 so that water can smoothly enter the debris collection plate 2. The inclined water inlet 41 is inclined so that the water flow from the top of the building can flow smoothly down.
[0024] The top of the mounting slot plate 4 is equipped with a plug-in positioning post 42, which is inserted into the plug-in positioning hole 26. The plug-in positioning post 42 can be a steel bar. During construction, the plug-in positioning post 42 is inserted into the inner wall of the mounting slot plate 4.
[0025] The working principle and usage process of this utility model are as follows: A groove is reserved at the top of the drainage pipe. Using the building's own structure, an installation groove plate 4 and an inclined inlet 41 are formed. After the drainage pipe filter head 1 is installed at the top of the drainage pipe, the debris collection plate 2 is laid on top of the drainage pipe. The filter head insertion hole 24 engages with the drainage pipe filter head 1. Four insertion positioning holes 26 are respectively fitted onto the outer sides of the four side interception collection plates 27. During use, water carrying debris enters the corresponding position of the debris collection plate 2 through the inclined inlet 41 and is filtered by the two outermost inclined filter screen plates 21, which also guide the debris. The water flows downwards through the inclined filter screen plates 21, and the debris is continuously impacted by the water flow towards the debris collection plate 2. The debris gathers at the edge, and after the outermost inclined filter plate 21 is blocked, the water carrying debris passes through the gap between the two inclined filter plates 21. Thus, the water will not be unable to flow smoothly due to the blockage of the debris collection plate 2 at the corresponding positions of the two inclined filter plates 21 in the second stage. Moreover, the inclined filter plates 21 distributed on both sides intersect each other and can intercept the debris. The debris will not flow in a straight line to the corresponding position of the drain pipe filter head 1, thus avoiding the debris from directly accumulating at the drain pipe filter head 1 and affecting the water permeability of the drain pipe filter head 1. As the amount of debris intercepted increases, it enters the corresponding positions of the subsequent inclined filter plates 21 in sequence until all the inclined filter plates 21 are blocked.
Claims
1. A water inlet filtration device for building drainage pipes, characterized in that: The system includes a drain pipe filter head (1), a debris collection plate (2) is detachably connected to the outside of the drain pipe filter head (1), six staggered inclined filter screens (21) are fixedly connected to the top of the debris collection plate (2), a one-way guide plate (22) is fixedly connected to one side of the inclined filter screen (21), two side filter screens (23) are fixedly connected to the top of the debris collection plate (2), the two side filter screens (23) are respectively located on both sides of the drain pipe filter head (1), the two side filter screens (23) are respectively fixedly connected to two of the inclined filter screens (21), and a top filter screen (3) is hinged to the top of the debris collection plate (2).
2. The building drainage pipe inlet filtration device according to claim 1, characterized in that: The top of the debris collection plate (2) is provided with a filter head insertion hole (24), and the drain pipe filter head (1) is inserted into the filter head insertion hole (24).
3. The building drainage pipe inlet filtration device according to claim 1, characterized in that: The top of the debris collection plate (2) is fixedly connected to a gap support plate (25), which is located outside the drain pipe filter head (1).
4. The building drainage pipe inlet filtration device according to claim 1, characterized in that: The debris collection plate (2) has insertion positioning holes (26) at all four corners.
5. A building drainage pipe inlet filtration device according to claim 1, characterized in that: The top of the debris collection plate (2) is fixedly connected to a side interception collection plate (27), and the top filter plate (3) is fixedly connected to the side interception collection plate (27).
6. A building drainage pipe inlet filtration device according to claim 4, characterized in that: The debris collection plate (2) is equipped with an installation groove plate (4) on the outside, and an inclined water inlet (41) is provided on one side of the installation groove plate (4).
7. A building drainage pipe inlet filtration device according to claim 6, characterized in that: The top of the mounting slot plate (4) is equipped with a plug-in positioning post (42), which is inserted into the plug-in positioning hole (26).