A filter structure for drainage design

Abstract

This utility model belongs to the technical field of sewer filtration devices. We propose a filtration structure for drainage design, including a sludge intercepting basket and an inner sludge intercepting basket. The top of the sludge intercepting basket is provided with a floor, and a grid filter plate is installed in the middle of the top of the sludge intercepting basket. The inner sludge intercepting basket is installed in the inner cavity of the sludge intercepting basket, and the inner sludge intercepting basket includes a connecting column and multiple layers of filter panels. Multiple filter panels are provided, arranged sequentially from top to bottom, and the connecting column is inserted into the middle of the filter panels. The top filter panel has the largest filter aperture, and the bottom filter panel has the smallest filter aperture. Side flow channels are opened in the inner wall of the sludge intercepting basket, and side seepage holes are opened between adjacent filter panels. The filtration structure for drainage design provided by this solution integrates multi-stage gradual filtration, diversion drainage, stable fixing, and convenient maintenance, specifically solving the defects of the prior art. The modular and detachable design significantly reduces maintenance difficulty and cost.

Description

Technical Field

[0001] This utility model relates to the technical field of sewer filtration devices, specifically a filtration structure for drainage design. Background Technology

[0002] With the acceleration of urbanization, drainage systems in municipal roads and residential areas are facing increasing demands for rainwater and domestic sewage diversion. The smoothness of these drainage systems directly affects urban flood control and drainage capabilities, as well as water quality. Currently, most mainstream sewer filtration structures on the market are combinations of "single grilles and simple hanging baskets," which still have some shortcomings in practical applications.

[0003] For example, low filtration efficiency easily leads to pipe blockage: Existing filtration structures generally use a "single-pore size filter element" design, which can only intercept pollutants with a diameter larger than the pore size of the screen. It cannot effectively intercept small-particle impurities such as fine sand, debris, and fibers. After these small-particle pollutants enter the main sewer pipe with the water flow, they are prone to depositing in pipe bends and low-lying sections. Long-term accumulation will lead to a reduction in the cross-sectional area of ​​the pipe and an increase in drainage resistance. This not only requires frequent investment of manpower and resources to dredge the pipes, but may also cause problems such as road flooding and poor drainage during heavy rain, seriously affecting urban traffic and the safety of residents' travel. Utility Model Content

[0004] The purpose of this invention is to provide a filter structure for drainage design to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter structure for drainage design, comprising a sludge-catching hanging basket and a sludge-catching inner basket;

[0006] The top of the intercepting basket is provided with a floor, and a grid filter plate is installed in the middle of the top of the intercepting basket. An inner intercepting basket is installed in the inner cavity of the intercepting basket. The inner intercepting basket includes a connecting column and multiple layers of filter panels. Multiple filter panels are provided and are placed sequentially from top to bottom. The connecting column is inserted into the middle of the filter panel.

[0007] The top filter panel has the largest filter aperture, while the bottom filter panel has the smallest filter aperture. The inner wall of the trap basket is provided with a side flow channel, and side seepage holes are provided between adjacent filter panels. The side seepage holes are connected to the side flow channel inward.

[0008] Preferably, the edges of the floor extend outwards, and the diameter of the floor is larger than that of the sewer opening. All four edges of the floor are set as arc-shaped slopes, and each arc-shaped slope has a smooth fixing surface. Multiple fixing anchors are distributed on the fixing surface, and the fixing anchors are installed downwards on the ground for fixation. Bolts are embedded in the four corners of the grid filter plate for fixation.

[0009] Preferably, each filter panel has a threaded hole in the middle, and each connecting post has a thread near the threaded hole. The connecting posts are connected in series with multiple filter panels to form a dirt-catching inner basket. The bottom end of the connecting post is screwed to the bottom of the inner cavity of the dirt-catching basket, and the top of the connecting post is provided with a lifting handle for pulling the dirt-catching inner basket.

[0010] Preferably, the filter panel has mounting protrusions axially distributed near the inner wall of the trap basket. The mounting protrusions are elastic, and the inner wall of the trap basket is provided with mounting grooves near the mounting protrusions. The filter panel is side-fixed by the mating of the mounting protrusions with the mounting grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The filtration structure provided in this solution for drainage design addresses the shortcomings of existing technologies through an integrated design that combines multi-stage gradient filtration, diversion drainage, stable fixing, and convenient maintenance. Its modular and detachable design significantly reduces maintenance difficulty and cost.

[0013] This innovative solution employs a multi-layered, gradually decreasing pore size filter panel design. Within the inner basket, the pore size of the filter panels decreases sequentially from top to bottom, forming a three-stage interception system: coarse filtration, medium filtration, and fine filtration. The top large-pore panel intercepts medium-sized impurities such as sand and small stones; the middle panel intercepts small-sized impurities such as debris and fibers; and the bottom small-pore panel intercepts fine sand, dust, and other particulate impurities. This effectively prevents various impurities from entering the main sewer pipe, reducing the risk of pipe siltation and blockage at the source, lowering the frequency of municipal pipe dredging and maintenance costs, and extending the service life of the sewer system.

[0014] This design incorporates side flow channels on the sidewalls of the intercepting basket and side seepage holes between adjacent filter panels, creating a dual drainage path of downward infiltration and side diversion: some water flows downward through the filter panels, while the other portion flows directly out through the side seepage holes into the side flow channels. Even in heavy rain, rainwater can be quickly channeled away, preventing water accumulation within the device. Simultaneously, the side flow channels reduce the direct impact of water on the filter panels, slowing the adhesion of contaminants to the panel surface and indirectly extending the cleaning cycle of the filter panels. Attached Figure Description

[0015] Figure 1 This is the front view of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Intercepting basket, 2. Floor, 3. Grid filter plate, 4. Fixed surface, 5. Fixed anchor rod, 6. Filter panel, 7. Connecting column, 8. Installation buckle, 9. Side flow channel, 10. Side seepage hole. Detailed Implementation

[0018] 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.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example:

[0021] Please see Figure 1-2 The present invention provides the following technical solution:

[0022] A filter structure for drainage design includes a sewage interception basket 1 and an inner sewage interception basket; the top of the sewage interception basket 1 is provided with a floor 2, the edge of the floor 2 extends outward, and the diameter of the floor 2 is larger than the sewer opening; the four edges of the floor 2 are all provided with arc-shaped slopes, and a smooth fixing surface 4 is provided on each arc-shaped slope; multiple fixing anchors 5 are distributed on the fixing surface 4, and the fixing anchors 5 are fixed downward on the ground.

[0023] A grid filter plate 3 is installed in the middle of the top of the intercepting basket 1. Bolts are embedded in the four corners of the grid filter plate 3 for fixing. The grid filter plate 3 can be removed after unscrewing the bolts.

[0024] The inner cavity of the trap basket 1 is equipped with a trap basket, which includes a connecting column 7 and multiple layers of filter panels 6. Multiple filter panels 6 are provided and are arranged from top to bottom. The connecting column 7 is inserted into the middle of the filter panel 6.

[0025] Each filter panel 6 has a threaded hole in the middle, and each connecting post 7 has a thread near the threaded hole. Multiple filter panels 6 are connected in series by the connecting post 7 to form a dirt-catching inner basket. The bottom end of the connecting post 7 is screwed to the bottom of the inner cavity of the dirt-catching basket 1, and the top of the connecting post 7 is provided with a lifting handle for easy pulling of the dirt-catching inner basket.

[0026] Each filter panel 6 has a different pore size. The top filter panel 6 has the largest pore size, and the bottom filter panel 6 has the smallest pore size. The gradient pore size trap can intercept pollutants of various diameters in sequence, resulting in higher interception efficiency.

[0027] The inner wall of the intercepting basket 1 is provided with a side flow channel 9, and the adjacent filter panels 6 are provided with side seepage holes 10. The side seepage holes 10 are connected to the side flow channel 9 inward. In addition to flowing downward, the water can also flow to the side, which improves the drainage efficiency.

[0028] The filter panel 6 has mounting buckles 8 axially distributed near the inner wall of the trap basket 1. The mounting buckles 8 are elastic buckles, and the inner wall of the trap basket 1 is provided with mounting grooves near the mounting buckles 8. The filter panel 6 is side-fixed by the mating of the mounting buckles 8 with the mounting grooves.

[0029] Working principle:

[0030] The logic of this filtration structure revolves around the purpose of first intercepting large particles and then screening small ones, while ensuring drainage efficiency. The intercepting basket 1 is installed by being anchored to the ground by the fixed anchor rod 5 of the top floor 2, ensuring that the device will not be washed away or displaced by rainwater.

[0031] The edge of the floor 2 is designed with an arc-shaped slope, and the diameter of the floor 2 is larger than the sewer opening, so that it can completely cover the drain opening and ensure that all water flows into the intercepting basket 1.

[0032] The water first comes into contact with the top grid filter plate 3, whose grid structure can directly intercept pollutants with larger diameters, such as fallen leaves, branches, plastic bottles, stones, etc. If the grid filter plate 3 becomes clogged over time, it can be disassembled by unscrewing the four corner bolts and the surface debris can be cleaned directly.

[0033] The water that has passed through the coarse filter enters the inner cavity of the intercepting basket 1 and contacts each layer of filter panel 6 in turn. The filter panel 6 adopts a gradient pore size design. The top filter panel 6 has the largest pore size, which can effectively intercept debris such as sand and gravel and large particles of mud and sand. The pore size of each filter panel 6 gradually decreases downward, intercepting smaller particles of pollutants such as fine sand, debris, and fibers in turn. This achieves graded filtration from coarse to fine, avoiding the filtration efficiency being affected by clogging of a single pore size panel.

[0034] The side seepage holes 10 between adjacent filter panels are connected to the side flow channels 9 on the side wall of the hanging basket. A portion of the water can be directly discharged from the panel gap → seepage holes → side flow channels to the sewer, greatly improving the drainage speed and preventing water accumulation on the road.

[0035] When the amount of pollutants intercepted by the filter panel 6 reaches a certain level, the entire inner basket for intercepting pollutants can be pulled upwards by the lifting handle at the top of the connecting column 7. The connecting column 7 is screwed onto each layer of filter panel 6 in sequence. After loosening them one by one, the inner basket for intercepting pollutants can be removed. After cleaning the pollutants of each layer, the filter panels 6 can be reconnected in series by reinstalling them in sequence and put back into the intercepting basket 1 to complete the maintenance and achieve recyclability.

[0036] It should be noted that all standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. It should be noted that the electrical components mentioned in this utility model have been sorted according to the actual situation during manufacturing, so that the wire harness will not cause the wire harness to become tangled or affect the operation. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Although embodiments of the present invention have been shown and described, 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.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Although embodiments of the present invention have been shown and described, 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 structure for drainage design, comprising a sludge-collecting hanging basket (1) and a sludge-collecting inner basket, characterized in that: The top of the intercepting basket (1) is provided with a floor (2), and a grid filter plate (3) is installed in the middle of the top of the intercepting basket (1). An intercepting inner basket is installed in the inner cavity of the intercepting basket (1). The intercepting inner basket includes a connecting column (7) and multiple filter panels (6) placed in layers. Multiple filter panels (6) are provided and are placed in order from top to bottom. The connecting column (7) is inserted into the middle of the filter panel (6). The top filter panel (6) has the largest filter aperture, and the bottom filter panel (6) has the smallest filter aperture; the inner wall of the trap basket (1) is provided with a side flow channel (9), and a side seepage hole (10) is provided between adjacent filter panels (6), and the side seepage hole (10) is connected to the side flow channel (9) inward.

2. The filter structure for drainage design according to claim 1, characterized in that: The edge of the floor (2) extends outward, and the diameter of the floor (2) is larger than that of the sewer opening. The four edges of the floor (2) are all set as arc-shaped slopes, and a smooth fixing surface (4) is opened on each arc-shaped slope. Multiple fixing anchors (5) are distributed on the fixing surface (4). The fixing anchors (5) are installed downward on the ground for fixing. Bolts are embedded in the four corners of the grid filter plate (3) for fixing.

3. A filter structure for drainage design according to claim 1, characterized in that: Each filter panel (6) has a threaded hole in the middle, and each connecting column (7) has a thread near the threaded hole. The connecting column (7) connects multiple filter panels (6) in series through the thread to form a dirt-catching inner basket. The bottom end of the connecting column (7) is screwed to the bottom of the inner cavity of the dirt-catching basket (1), and the top of the connecting column (7) is provided with a lifting handle for pulling the dirt-catching inner basket.

4. A filter structure for drainage design according to claim 1, characterized in that: The filter panel (6) has mounting buckles (8) axially distributed near the inner wall of the trap (1). The mounting buckles (8) are elastic buckles, and the inner wall of the trap (1) is provided with mounting grooves near the mounting buckles (8). The filter panel (6) is side-fixed by the docking of the mounting buckles (8) with the mounting grooves.

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