A clog-resistant rainwater pipe filtration structure

Abstract

This utility model discloses an anti-clogging rainwater pipe filtration structure, belonging to the field of municipal drainage technology. The structure employs a modular design of the manhole body and cover, utilizing a double-layer filter screen for graded interception. The upper coarse filter screen is installed at a 15-30 degree angle, with 2-5mm pore size filters to initially intercept large particles of debris. The lower fine filter screen has a semi-circular, detachable structure, forming a sedimentation chamber with the upper screen. A drain outlet at the bottom connects to a sewage pipe. The system uses a water level sensor to control a solenoid valve and pump, automatically discharging sediment into a sewage chamber. A symmetrical inlet design ensures uniform water intake, and the snap-fit ​​installation groove and extension plate structure facilitate quick disassembly and maintenance. This device effectively solves the problems of easy clogging and difficult cleaning in traditional rainwater pipes, featuring high filtration efficiency, high automation, and convenient maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of municipal drainage technology, specifically relating to an anti-clogging rainwater pipe filtration structure. Background Technology

[0002] In municipal drainage, stormwater pipes are frequently clogged by debris such as leaves and silt, leading to urban flooding and system failures. Traditional filtration structures often use fixed filters, requiring frequent manual cleaning and incurring high maintenance costs. Their filtration efficiency is insufficient, especially during heavy rains, easily causing overflow hazards. Existing technologies attempt to improve this through detachable filters or mechanical cleaning mechanisms, such as snap-on filter bars for easy removal, but lack a tiered interception mechanism, allowing fine impurities like silt to easily penetrate and accumulate in the pipes. Furthermore, a single filter layer struggles to simultaneously intercept large particles and automatically remove sediment, resulting in short maintenance cycles and low automation.

[0003] To address these shortcomings, modern designs are trending towards modular two-stage filtration and electromechanical integrated wastewater treatment. For example, tilted filters optimize water flow and reduce sedimentation, while semi-circular sedimentation chambers, linked to water level sensors, enable automatic sediment detection and directional discharge, significantly reducing the frequency of manual intervention. These improvements not only enhance the continuity of rainwater treatment but also extend pipeline lifespan, providing an efficient solution for urban flood control.

[0004] Therefore, a clog-resistant rainwater pipe filtration structure is needed to solve the problems existing in the current technology. Utility Model Content

[0005] The purpose of this invention is to provide an anti-clogging rainwater pipe filtration structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clog-resistant rainwater pipe filtration structure, comprising a well body and a well cover. The inner side of the upper end of the well body is provided with a first mounting groove. The inner and outer sides of the first mounting groove are respectively engaged with a first extension plate at the lower end of a connecting frame or a third extension plate at the lower end of the well cover. The innermost side of the upper end of the well body is provided with several clamping plates. The clamping plates are engaged with clamping grooves provided on the edge of the connecting frame. The inner side of the upper end of the connecting frame is provided with a second mounting groove. The second mounting groove is engaged with a second extension plate at the lower end of a lower fine filter screen. The inner side of the upper end of the lower fine filter screen is provided with an upper coarse filter screen, and a sedimentation chamber is formed between the lower fine filter screen and the upper coarse filter screen.

[0007] It should be noted in the solution that the upper coarse filter screen is inclined at an angle of 15-30 degrees and is snapped into the third mounting groove on the inner side of the upper end of the lower fine filter screen.

[0008] It is worth noting that the lower fine filter screen is a detachable structure, and the lower end of the lower fine filter screen is provided with several filter holes, the diameter of which is 2-5mm.

[0009] Furthermore, it should be noted that the lower fine filter screen is semi-circular, and a drain port is opened at the bottom of the lower fine filter screen, which is connected to a drain pipe.

[0010] In a preferred embodiment, one end of the sewage pipe passes through the sedimentation chamber, and the other end of the sewage pipe passes through the sewage pipe hole of the well body and is connected to the sewage discharge chamber. The outer surface of the sewage pipe is provided with a control device, which includes a solenoid valve and a pump body.

[0011] In a preferred embodiment, the manhole cover has symmetrical water inlet holes at the upper end and a water level sensor at the middle of the lower end, and the water level sensor is linked to a solenoid valve for control.

[0012] Compared with the prior art, the anti-clogging rainwater pipe filtration structure provided by this utility model has at least the following beneficial effects:

[0013] (1) The combined design of an upper coarse filter and a lower fine filter forms a double physical barrier. The coarse filter, tilted at 15-30 degrees, effectively separates large particles such as leaves, while the fine filter traps fine impurities such as mud and sand. The sedimentation chamber formed between the two filter layers can collect sediment. Combined with the drain pipe at the bottom of the semi-circular fine filter, when the water level sensor detects excessive water accumulation, it automatically controls the solenoid valve and pump to achieve automatic drainage, avoiding the tedious operation of manual cleaning. This structure not only improves filtration efficiency but also reduces maintenance costs through electromechanical integration.

[0014] (2) The entire filtration system adopts a snap-fit ​​installation design. The connecting frame and the well body can be quickly assembled and disassembled through extension plates and slots. The lower fine filter screen can be removed and cleaned separately. The 2-5mm filter holes of the fine filter screen can ensure drainage speed while preventing common debris from penetrating. The symmetrically distributed water inlet holes of the well cover, together with the inclined filter screen, form a flow guide, reducing the risk of local siltation. This modular design not only facilitates later maintenance and replacement, but its optimized fluid channel design can also significantly reduce the probability of blockage and extend the service life of the municipal drainage system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the front structure of the present invention. Figure 2 ;

[0017] Figure 3This is a schematic diagram of the manhole cover structure of this utility model.

[0018] In the diagram: 1. Well body; 101. First mounting slot; 102. Clamping plate; 103. Sewage pipe hole; 2. Connecting frame; 201. Clamping slot; 202. Second mounting slot; 203. First extension plate; 3. Lower fine filter screen; 301. Second extension plate; 302. Filter hole; 303. Third mounting slot; 4. Upper coarse filter screen; 5. Well cover; 501. Third extension plate; 502. Water inlet hole; 6. Sewage pipe; 7. Control device; 8. Water level sensor. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Please see Figure 1-3 This utility model provides an anti-clogging rainwater pipe filtration structure, including: a well body 1 and a well cover 5. The inner side of the upper end of the well body 1 is provided with a first mounting groove 101. The inner and outer sides of the first mounting groove 101 are respectively engaged with the first extension plate 203 at the lower end of the connecting frame 2 or the third extension plate 501 at the lower end of the well cover 5. The innermost side of the upper end of the well body 1 is provided with several clamping plates 102. The clamping plates 102 are engaged with the clamping grooves 201 provided on the edge of the connecting frame 2. The inner side of the upper end of the connecting frame 2 is provided with a second mounting groove 202. The second mounting groove 202 is engaged with the second extension plate 301 at the lower end of the lower fine filter screen 3. The inner side of the upper end of the lower fine filter screen 3 is provided with an upper coarse filter screen 4, and a sedimentation chamber is formed between the lower fine filter screen 3 and the upper coarse filter screen 4.

[0021] Further as Figure 1 As shown, it is worth noting that the upper coarse filter 4 is inclined at an angle of 15-30 degrees. It is attached to the inner side of the upper end of the lower fine filter 3, which has a third mounting groove 303. The upper coarse filter 3 adopts an inclined design of 15-30 degrees, which can effectively guide the water flow to wash the screen surface, prevent the accumulation of large particles such as leaves, and ensure drainage efficiency.

[0022] Further as Figure 2 As shown, it is worth noting that the lower fine filter screen 3 has a detachable structure, and the lower end of the lower fine filter screen 3 has several filter holes 302 with a diameter of 2-5mm. The lower fine filter screen 4 is detachably snapped on through the third mounting groove 303, which facilitates regular cleaning or replacement and avoids the problem of mesh clogging caused by long-term use. In addition, with the 2-5mm filter holes 302, it can effectively guide the water flow to flush the mesh surface, prevent the accumulation of large particles such as leaves, and ensure drainage efficiency.

[0023] Further as Figure 1As shown, it is worth noting that the lower fine filter screen 3 is semi-circular with an inclination angle of 15-30 degrees, and a drain outlet is opened at the bottom of the lower fine filter screen 3, which is connected to a drain pipe 6. The semi-circular lower fine filter screen 3, together with the bottom drain outlet structure, allows the sediment to fall into the drain pipe 6 in a concentrated manner, forming a directional drain channel and improving the efficiency of sediment removal.

[0024] This system operates as follows: Rainwater enters the well body 1 through symmetrically distributed inlet holes 502 on the well cover 5. It first passes through an upper coarse filter 4 at a 15-30 degree angle, whose 2-5mm pore size 302 intercepts large particles such as leaves. The coarsely filtered water flows downwards, impacting a semi-circular lower fine filter 3. This fine filter is engaged with the upper structure via a third mounting groove 303, forming a closed sedimentation chamber that traps fine impurities such as silt. The sediment accumulates at the bottom of the fine filter 3 under gravity. When the water level sensor 8 detects that the water level in the sedimentation chamber has reached a threshold, the control device 7 automatically activates the solenoid valve and pump, discharging the sediment into the sewage chamber through the drain pipe 6. The entire filtration system allows for quick assembly and disassembly of the connecting frame 2 and the filter screen via the first mounting groove 101 and the second mounting groove 202. The cooperation between the third extension plate 501 and the clamping plate 102 ensures a sealed connection between the well cover 5 and the well body 1. This design achieves efficient rainwater filtration and automated anti-clogging through dual filtration and electromechanical linkage sewage discharge.

[0025] Based on the above working process, it can be seen that: the upper coarse filter screen 4 adopts a 15-30 degree inclined design, combined with 2-5mm filter holes 302, which can effectively guide water flow to flush the screen surface, prevent the accumulation of large particles such as leaves, and ensure drainage efficiency; the lower fine filter screen 3 is detachably snapped on through the third installation groove 303, which is convenient for regular cleaning or replacement and avoids the problem of screen clogging caused by long-term use; the semi-circular lower fine filter screen 3, combined with the bottom drain outlet structure, allows the sediment to slide down into the drain pipe 6, forming a directional drain channel and improving the sediment removal efficiency.

[0026] Further as Figure 1 As shown, it is worth noting that one end of the sewage pipe 6 is connected to the sedimentation chamber, and the other end of the sewage pipe 6 is connected to the sewage pipe hole 103 of the well body 1 and connected to the sewage discharge chamber. The outer surface of the sewage pipe 6 is provided with a control device 7, which includes a solenoid valve and a pump body. The sewage pipe 6 connects the sedimentation chamber and the sewage pipe hole 103. Automatic opening and closing is achieved through the solenoid valve and pump body of the control device 7, reducing the need for manual intervention.

[0027] Further as Figure 3As shown, it is worth noting that the upper end of the manhole cover 5 is provided with symmetrical water inlet holes 502, and the lower middle part of the manhole cover 5 is provided with a water level sensor 8. The water level sensor 8 is linked with the solenoid valve for control. The symmetrical water inlet holes 502, combined with the linkage control of the water level sensor 8, can dynamically adjust the opening and closing of the solenoid valve to prevent system overload caused by excessively high water levels during heavy rain.

[0028] In summary: Rainwater enters the well body 1 through the symmetrically distributed inlet holes 502 on the well cover 5. It first passes through an upper coarse filter 4 inclined at 15-30 degrees, whose 2-5mm pore size 302 intercepts large particles such as leaves. The coarsely filtered water flows downwards, impacting the semi-circular lower fine filter 3. The fine filter is engaged with the upper structure via a third mounting groove 303, forming a closed sedimentation chamber that traps fine impurities such as silt. The sediment accumulates at the bottom of the fine filter 3 under gravity. When the water level sensor 8 detects that the water level in the sedimentation chamber has reached a threshold, the control device 7 automatically activates the solenoid valve and pump, discharging the sediment into the sewage chamber through the sewage pipe 6. The entire filtration system allows for quick assembly and disassembly of the connecting frame 2 and the filter screen via the first mounting groove 101 and the second mounting groove 202. The cooperation between the third extension plate 501 and the clamping plate 102 ensures a sealed connection between the well cover 5 and the well body 1. This design achieves efficient rainwater filtration and automated anti-clogging through dual filtration and electromechanical linkage sewage discharge. The sewage discharge pipe 6 connects the sedimentation chamber and the sewage pipe hole 103, and the solenoid valve and pump body of the control device 7 realize automatic opening and closing, reducing the need for manual intervention. The symmetrical water inlet hole 502, combined with the linkage control of the water level sensor 8, can dynamically adjust the opening and closing of the solenoid valve to prevent system overload caused by excessively high water levels during heavy rain.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant rainwater pipe filtration structure, comprising a well body (1) and a well cover (5), characterized in that: The well body (1) has a first mounting groove (101) on the inner side of its upper end. The inner and outer sides of the first mounting groove (101) are respectively engaged with the first extension plate (203) at the lower end of the connecting frame (2) or the third extension plate (501) at the lower end of the well cover (5). The innermost side of the upper end of the well body (1) is provided with several clamping plates (102). The clamping plates (102) are engaged with the clamping groove (201) provided on the edge of the connecting frame (2). The inner side of the upper end of the connecting frame (2) is provided with a second mounting groove (202). The second mounting groove (202) is engaged with the second extension plate (301) provided at the lower end of the lower fine filter screen (3). The inner side of the upper end of the lower fine filter screen (3) is provided with an upper coarse filter screen (4). A sedimentation chamber is formed between the lower fine filter screen (3) and the upper coarse filter screen (4).

2. The anti-clogging rainwater pipe filter structure according to claim 1, characterized in that: The upper coarse filter (4) is inclined at an angle of 15-30 degrees and is attached to the lower fine filter (3) with a third mounting groove (303) on the inner side of the upper end.

3. The anti-clogging rainwater pipe filter structure according to claim 2, characterized in that: The lower fine filter screen (3) is a detachable structure, and the lower end of the lower fine filter screen (3) is provided with a number of filter holes (302), the diameter of the filter holes (302) is 2-5mm.

4. The anti-clogging rainwater pipe filter structure according to claim 3, characterized in that: The lower fine filter screen (3) is semi-circular, and a drain outlet is opened at the bottom of the lower fine filter screen (3) and connected to a drain pipe (6).

5. The anti-clogging rainwater pipe filter structure according to claim 4, characterized in that: One end of the sewage pipe (6) is connected to the sedimentation chamber, and the other end of the sewage pipe (6) is connected to the sewage pipe hole (103) of the well body (1) and connected to the sewage discharge chamber. The outer surface of the sewage pipe (6) is provided with a control device (7), which includes a solenoid valve and a pump body.

6. The anti-clogging rainwater pipe filter structure according to claim 5, characterized in that: The manhole cover (5) has symmetrical water inlet holes (502) at the upper end, and a water level sensor (8) is provided at the middle of the lower end of the manhole cover (5). The water level sensor (8) is linked to the solenoid valve for control.

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