A wastewater filtration device for ecological environment management

By combining a floating support platform and a fluid drive assembly with an eccentric sliding guide seat and a multi-stage filter box, the problems of low efficiency and poor stability of existing sewage filtration equipment in dynamic water bodies are solved, achieving efficient and automated sewage filtration and purification.

CN224270386UActive Publication Date: 2026-05-26SHANDONG WEIDA ENVIRONMENTAL PROTECTION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG WEIDA ENVIRONMENTAL PROTECTION MASCH CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing wastewater filtration equipment is inefficient in dynamic water bodies, has insufficient filtration precision, is prone to filter clogging, and cannot automatically adjust the flow rate, resulting in poor system stability and continuity, and is unable to adapt to different water quality conditions.

Method used

Employing a floating support platform, fluid flow drive components, and a multi-stage filter box structure, combined with an eccentrically arranged sliding guide seat and moving piston, it achieves efficient collection, transportation, and multi-stage filtration of wastewater. The flow rate is controlled by adjusting the piston stroke via a sliding rod.

Benefits of technology

It enables efficient and automated wastewater filtration in dynamic water bodies, improving filtration efficiency and stability, adapting to different water quality requirements, and simplifying the maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wastewater filtration device for ecological environment treatment, including a float, a liquid flow drive assembly, and a filter box. The liquid flow drive assembly is fixedly installed on the surface of the float, which is equipped with several floats for buoyancy support. The liquid flow drive assembly includes a fixed base, a drive motor, a rotor, a moving piston, and a sliding guide seat. The rotor is rotatably mounted in the fixed base and has multiple radial piston chambers inside. The moving piston slides within the piston chambers and is connected to the sliding guide seat via a sliding pin. The filter box is detachably connected to the outlet port for multi-stage filtration of wastewater. The sliding guide seat has a sliding rod that can slide and lock in an adjustment groove on the cover to adjust the eccentric stroke and liquid flow rate. This device has a compact structure, stable operation, and good suction and pressurization effect and filtration efficiency, making it suitable for the collection and treatment of wastewater and floating impurities in ecological water bodies.
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Description

Technical Field

[0001] This utility model relates to the technical field of sewage filtration equipment, specifically a sewage filtration device for ecological environment management. Background Technology

[0002] In the fields of ecological water body management and urban wastewater treatment, especially for floating impurities, organic pollution, and suspended solids in natural or semi-natural water bodies such as rivers, lakes, and reservoirs, filtration devices are often deployed to extract and purify surface wastewater. Existing wastewater filtration equipment mostly relies on water pumps, water turbines, or gravity flow to drive the water body, and uses structures such as filter cartridges, filter screens, or sedimentation tanks to achieve primary filtration treatment of the water body.

[0003] A typical traditional design uses a motor-driven centrifugal pump to draw water into a stationary filter cartridge for coarse filtration. This type of device is simple in structure and suitable for static water sources, but it has significant limitations in dynamic water conditions (such as water with waves or currents).

[0004] On the one hand, the suction power of the water pump is limited by the output of a single motor, resulting in low efficiency and difficulty in effectively covering and continuously treating floating pollutants that are widely distributed on the water surface.

[0005] On the other hand, existing filtration devices mostly use single-layer filter screens or fixed pore size structures, which cannot achieve multi-stage interception and particle classification filtration, resulting in insufficient filtration accuracy, easy clogging of the filter screen and inconvenience in replacement; at the same time, the processing flow rate cannot be automatically adjusted after the filter screen is clogged, which seriously affects the continuity and stability of the system.

[0006] In addition, in terms of structural control, traditional sewage filtration devices generally lack the ability to dynamically adjust the pumping stroke and suction / discharge pressure. Users cannot make precise adjustments according to the actual water quality or flow requirements, resulting in poor system operation flexibility and limited efficiency and energy saving.

[0007] In view of this, this paper studies and improves upon existing problems, and provides a wastewater filtration device for ecological environment management to solve the current problems. The aim is to solve the problems and improve the practical value through this technology. Summary of the Invention

[0008] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0009] Therefore, the technical solution adopted by this utility model is as follows: a sewage filtration device for ecological environment treatment, including a float, a liquid flow drive assembly, and a filter box. The liquid flow drive assembly is fixedly installed on the surface of the float, and the surface of the float is provided with a plurality of float balls for providing floating support for the float and the liquid flow drive assembly. The liquid flow drive assembly includes a fixed base, a drive motor, a rotor, a moving piston, and a sliding guide seat. The rotor is rotatably sleeved on the inner side of the fixed base, and the drive motor is fixed on the bottom surface of the fixed base for driving the rotor to rotate. The fixed base has an inlet and an outlet on both sides, and the filter box is detachably connected to the outlet port. The inner side of the rotor has a plurality of radially penetrating piston cavities, and each of the moving pistons slides in the inner side of the piston cavity. One end of the moving piston is connected to a sliding pin, and the sliding pin is slidably sleeved on the inner side of the sliding guide seat. A sliding rod is fixedly installed on the surface of the sliding guide seat, and a cover is fixedly installed on the top surface of the fixed base. The surface of the cover has an adjustment groove for guiding the sliding rod to slide.

[0010] Through the above-mentioned technical means: by setting up multiple sets of moving pistons and sliding guide mechanisms in cooperation, a stable liquid flow suction and pressure delivery capacity is formed, realizing the efficient collection and transportation of sewage on the water surface.

[0011] In one possible implementation, the filter box is a cavity-shaped filter cylinder structure, and the internal cavity of the filter box is used to load filtered impurities.

[0012] Through the above technical means: the structure is simple, highly replaceable, easy to clean and maintain periodically, and the system filtration efficiency is effectively improved.

[0013] In one possible implementation, the float is an airbag structure and is located on the same horizontal plane as the water inlet, used to provide buoyancy to the device and keep the water surface in the middle of the water inlet.

[0014] The above technical means ensure that the inlet is always in a stable liquid inlet position, adapts to dynamic water level changes, and improves the efficiency and stability of sewage suction.

[0015] In one possible implementation, the center of the sliding guide is offset from the center of the rotor, and the center of the sliding guide is close to the outlet end and far from the inlet end.

[0016] The above-mentioned technical means are used to achieve the eccentric reciprocating motion of the moving piston, increase the pressure delivery path, and improve the volume of liquid delivered per unit time.

[0017] In one possible implementation, the inner side of the sliding guide seat is provided with an annular groove for guiding the sliding pin to slide, and the sliding guide seat remains stationary during rotor rotation.

[0018] By employing the aforementioned technical means—specifically, the trajectory of the limiting sliding pin—the reciprocating accuracy and synchronization of the moving piston are ensured, thereby improving pumping efficiency.

[0019] In one possible implementation, the adjusting groove on the cover surface is arranged horizontally, with its two ends facing the water inlet and the water outlet respectively, and the slide rod surface is provided with a positioning structure for locking the position of the slide rod in the adjusting groove.

[0020] Through the above technical means, the position of the adjustable slide bar can be adjusted to regulate the eccentric stroke, thereby achieving precise control of hydraulic flow and adapting to different working conditions.

[0021] In one possible implementation, the filter box is a metal mesh box structure, and its inner wall is attached with a filter mesh layer to achieve multi-stage filtration of sewage.

[0022] Through the above technical means, the multi-stage structure enhances the particulate matter interception capacity, achieving a combination of coarse and fine filtration, effectively improving the quality of the effluent.

[0023] The beneficial effects achieved by this utility model are as follows:

[0024] 1. In this utility model, by introducing an eccentrically arranged sliding guide seat and multiple sets of moving piston structures, a continuous suction-pressure cycle is formed under the rotation of the rotor, which imitates the working principle of a plunger pump. Water is introduced and pressurized to continuously filter through the filter box, eliminating garbage and impurities on the surface of the water in the ecological environment.

[0025] 2. In this utility model, the slide rod can slide in the adjustment groove on the cover and be locked by the positioning structure to realize the dynamic adjustment of the eccentricity of the slide guide seat, thereby controlling the stroke length of the moving piston and the amount of liquid pumped per cycle, and increasing or decreasing the pumping pressure to ensure filtration efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0027] Figure 2 This is an exploded structural diagram of a fluid flow drive component according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the rotor, moving piston, and sliding guide seat structure according to one embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the rotor cross-section structure according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the moving piston and sliding guide seat structure according to an embodiment of the present invention.

[0031] Figure label:

[0032] 100. Floating frame; 110. Buoy;

[0033] 200. Fluid flow drive assembly; 210. Fixed base; 220. Drive motor; 230. Rotor; 240. Moving piston; 250. Sliding guide seat; 211. Inlet; 212. Outlet; 213. Cover; 231. Piston chamber; 241. Sliding pin; 251. Sliding rod;

[0034] 300. Filter box. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0036] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0037] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a wastewater filtration device for ecological environment management.

[0038] Combination Figures 1-5 As shown, this utility model provides a wastewater filtration device for ecological environment treatment, including a float 100, a liquid flow drive assembly 200, and a filter box 300. The liquid flow drive assembly 200 is fixedly installed on the upper surface of the float 100. The upper surface of the float 100 is provided with several floats 110 to provide floating support for the float 100 and the liquid flow drive assembly 200. Preferably, the floats 110 are airbag structures, with multiple floats 110 evenly distributed at the edges of the float 100 to maintain the overall stability of the device and ensure that the inlet 211 is always located in the middle of the water surface, thereby ensuring that garbage or wastewater floating on the water surface can continuously enter the device.

[0039] The fluid flow drive assembly 200 is the core power unit of this invention, including a fixed base 210, a drive motor 220, a rotor 230, a moving piston 240, and a sliding guide seat 250. The rotor 230 is a hollow cylindrical structure, rotatably sleeved on the inner side of the fixed base 210. The drive motor 220 is fixedly installed on the bottom surface of the fixed base 210, providing power to drive the rotor 230 to rotate. The fixed base 210 has an inlet 211 and an outlet 212 on opposite sides, preferably with a circular orifice structure. A filter box 300 is detachably connected to the outlet 212 for subsequent wastewater filtration.

[0040] Several through-hole piston chambers 231 are radially formed inside the rotor 230, and a movable piston 240 is slidably fitted in each piston chamber 231. One end of the movable piston 240 is connected to a sliding pin 241, which is slidably sleeved on the inner side of a sliding guide seat 250. The sliding guide seat 250 is a fixed structure, and its outer shell is fixed in the fixed seat 210, so that it does not move with the rotation of the rotor 230. An annular groove is formed on the inner wall of the sliding guide seat 250, which is used to guide the sliding pin 241 to slide along its trajectory. It should be noted that the center of the sliding guide seat 250 is offset relative to the center of the rotor 230, and the offset direction is closer to the outlet 212 and farther away from the inlet 211. This offset arrangement allows the movable piston 240 to reciprocate when the rotor 230 rotates, forming a controllable pressure stroke, thereby realizing the functions of liquid suction and propulsion.

[0041] Specifically, the rotor 230 rotates around its central axis under the action of the drive motor 220. Since the guide seat 250 remains stationary, and the sliding pin 241 is constrained by the annular groove of the guide seat 250, the moving piston 240 undergoes non-circular motion within the rotor 230, i.e., radial reciprocating sliding. When the moving piston 240 is positioned near the inlet 211, a negative pressure is created in the piston chamber 231, drawing in sewage. As the rotor 230 rotates to the side near the outlet 212, the moving piston 240 gradually presses into the piston chamber 231, propelling the sewage towards the outlet 212 for outflow, completing one intake-discharge cycle. Through the synchronous movement of multiple sets of moving pistons 240, continuous sewage intake and propulsion can be achieved.

[0042] To achieve effective wastewater purification, a filter box 300 is located at the end of the outlet 212, preferably with a detachable installation structure for easy periodic removal and maintenance. The filter box 300 can be designed as a hollow filter cylinder structure or a metal mesh box structure, with a filter screen layer attached to its inner wall. The filter screen layer has a multi-stage filtration function, capable of intercepting large particles and fine suspended solids in the passing wastewater step by step, ultimately purifying the wastewater and discharging it in compliance with standards. During the filtration process, impurities remain inside the filter box 300, and users can periodically disassemble the filter box 300 for cleaning or replace the filter screen.

[0043] To further adjust the piston stroke and pumping volume during the liquid flow drive process, a slide rod 251 is fixedly installed on the outer surface of the guide seat 250. The slide rod 251 passes through the cover 213 located on the top surface of the fixed seat 210. The surface of the cover 213 is provided with a transversely arranged adjustment groove to guide the slide rod 251 to slide laterally. The two ends of the adjustment groove are respectively facing the inlet 211 and the outlet 212. The outer side of the slide rod 251 is also provided with a positioning structure, which can lock the position of the slide rod 251 at any point on the adjustment groove. When the slide rod 251 is closer to the outlet 212, the eccentricity of the guide seat 250 is greater, and the reciprocating stroke of the moving piston 240 also increases, increasing the volume of liquid pumped in a single operation; conversely, it decreases, achieving the effect of adjusting the flow rate as needed.

[0044] In summary, this utility model, by setting up a compact floating support platform, combining a rotor piston hydraulic drive mechanism and an adjustable stroke eccentric structure, and using replaceable multi-stage filter boxes, achieves efficient, automated, and continuous operation of sewage pumping and purification in ecological water bodies.

[0045] Working principle and usage process of this utility model:

[0046] This invention utilizes a floating system to keep the device afloat on the water surface. A liquid flow drive component draws in, pressurizes, and propels wastewater, which then undergoes multi-stage filtration within the filter box. Its core power and filtration process includes the following steps:

[0047] The device floats on the water surface using a float 100 and multiple buoys 110. The buoys have an airbag structure to keep the device stable and keep the inlet 211 always in the middle of the water surface, thereby ensuring that floating garbage can continuously enter the fixed base 210.

[0048] The fluid drive assembly 200 is the core power mechanism, in which the drive motor 220 drives the rotor 230 to rotate within the fixed base 210.

[0049] The rotor 230 has multiple radially penetrating piston chambers 231 inside, and each piston chamber 231 is provided with a slidable moving piston 240. One end of the piston is connected to a sliding pin 241, which is sleeved in an annular groove inside the sliding guide seat 250.

[0050] The sliding guide seat 250 is fixed and its center is offset from the center of the rotor 230. When the rotor 230 rotates, it drives the moving piston 240 to slide in a ring inside the sliding guide seat 250. The eccentric motion of the moving piston 240 creates a suction and pressure effect similar to that of a plunger pump. Sewage is sucked in from the inlet 211 and rotates half a revolution before reaching the outlet 212, where it pushes the sewage to flow towards the outlet 212.

[0051] The sewage pumped by the driven system flows into the filter box 300. The filter box 300 is a detachable structure and can be a metal mesh box structure. It has a filter screen layer inside to achieve multi-stage filtration of large particles and fine pollutants, trapping the impurities in the filter box 300. It can be disassembled and cleaned periodically.

[0052] A sliding rod 251 is provided on the surface of the sliding guide seat 250. It slides laterally in the adjustment groove on the top of the cover 213. The position can be locked by the positioning structure to achieve eccentricity adjustment. That is, the closer the sliding rod 251 is to the outlet 212, the greater the stroke of the moving piston 240 and the greater the amount of liquid delivered in a single operation.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A wastewater filtration device for ecological environment treatment, characterized in that, The system includes a float (100), a fluid flow drive assembly (200), and a filter box (300). The fluid flow drive assembly (200) is fixedly installed on the surface of the float (100). The surface of the float (100) is provided with a plurality of float balls (110) for providing floating support for the float (100) and the fluid flow drive assembly (200). The fluid flow drive assembly (200) includes a fixed base (210), a drive motor (220), a rotor (230), a moving piston (240), and a sliding guide seat (250). The rotor (230) is rotatably sleeved on the inner side of the fixed base (210). The drive motor (220) is fixed to the bottom surface of the fixed base (210) for driving the rotor (230) to rotate. The fixed base (210)... The filter box (300) is provided with an inlet (211) and an outlet (212) on both sides respectively. The filter box (300) is detachably connected to the port of the outlet (212). The rotor (230) has several radially penetrating piston chambers (231) on its inner side. Each moving piston (240) is slidably fitted inside the piston chamber (231). One end of the moving piston (240) is connected to a sliding pin (241). The sliding pin (241) is slidably sleeved on the inner side of the sliding guide seat (250). A sliding rod (251) is fixedly installed on the surface of the sliding guide seat (250). A cover (213) is fixedly installed on the top surface of the fixed seat (210). An adjustment groove for guiding the sliding rod (251) is opened on the surface of the cover (213).

2. The wastewater filtration device for ecological environment treatment according to claim 1, characterized in that, The filter box (300) is a hollow filter cylinder structure, and the internal cavity of the filter box (300) is used to load and filter impurities.

3. The wastewater filtration device for ecological environment treatment according to claim 1, characterized in that, The float (110) is an airbag structure and is located on the same horizontal plane as the inlet (211). It is used to provide buoyancy for the device and keep the water surface in the middle of the inlet (211).

4. The wastewater filtration device for ecological environment treatment according to claim 1, characterized in that, The center of the sliding guide (250) is offset from the center of the rotor (230), and the center of the sliding guide (250) is close to the end of the outlet (212) and far away from the inlet (211).

5. The wastewater filtration device for ecological environment treatment according to claim 1, characterized in that, The inner side of the sliding guide (250) is provided with an annular groove for guiding the sliding pin (241) to slide. The sliding guide (250) remains stationary during the rotation of the rotor (230).

6. The wastewater filtration device for ecological environment treatment according to claim 1, characterized in that, The adjustment groove on the surface of the cover (213) is arranged horizontally, and the two ends are respectively facing the inlet (211) and the outlet (212). The slide rod (251) is provided with a positioning structure on its surface to lock the position of the slide rod (251) in the adjustment groove.

7. The wastewater filtration device for ecological environment treatment according to claim 1, characterized in that, The filter box (300) is a metal mesh box structure, and its inner wall is attached with a filter mesh layer to achieve multi-stage filtration of sewage.