Portable sewage circulating filtration station

By using a portable wastewater recycling filtration station with a built-in filter element and hollow shaft motor, the filter element can be self-cleaned and wastewater can be recycled, which solves the problem of difficult cleaning in small places by floor scrubbers, improves cleaning efficiency and reduces manual workload.

CN224077084UActive Publication Date: 2026-04-03CHANGCHUN JIEYIDA INTELLIGENT MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing floor scrubbers are difficult to use in small spaces such as trains, require frequent manual water changes, and need to clean the filter cartridges frequently, resulting in low efficiency and a heavy workload.

Method used

Design a portable wastewater recycling filtration station with a built-in filter cartridge and hollow shaft motor. The filter cartridge can be self-cleaned by the motor drive or manual foot pedal transmission components. Combined with a water pump and pipeline, wastewater and clean water can be recycled, reducing manual operation.

Benefits of technology

It solves the inconvenience of manual water changes, extends the service life of filter cartridges, reduces manual workload, improves cleaning efficiency, and is easy to use in different scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable sewage circulating filter station, which relates to the technical field of circulating water and comprises a box body, and a clean water tank and a filter water tank are distributed in the box body; rollers are mounted at the bottom of the box body; the filter element device is mounted in the filtering water tank; the motor body is located outside the bottom of the filtering water tank; the hollow shaft is connected to the filter element device through a flange; the clean water pipeline penetrates through the hollow shaft, and two ends of the clean water pipeline are respectively connected into the filter element device and the clean water tank; one part of the transmission assembly is connected to the hollow shaft, and the other part is connected with the motor body; clean water filtered by the filter element device is pumped by a first water pump and is conveyed into the clean water tank through a clean water pipeline for recycling; the motor body drives the hollow shaft to rotate through the transmission assembly to form synchronous rotation of the filter element device so as to clean the filter element device; the device solves the inconvenience caused by manual barrel lifting and water changing, avoids frequent water changing and manual cleaning and filter element changing, and reduces the workload; the device is small in size, moves through the rollers and is flexible to use.
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Description

Technical Field

[0001] This utility model relates to the field of water recycling technology, and in particular to a portable wastewater recycling filter station. Background Technology

[0002] With social progress and continuous technological development, people's requirements for quality of life are getting higher and higher. A clean and hygienic environment is an important factor in improving the quality of life. As a high-efficiency automated deep cleaning machine, floor scrubbers can clean stubborn stains on hard floors and at the same time absorb wastewater from the floor, saving labor costs and time, and achieving cleaning effects that cannot be achieved manually.

[0003] Existing floor scrubbers are mostly used in large shopping malls, supermarkets, airports, train stations, hospitals and other places with large floor areas. The floor scrubbers equipped with them are relatively large. However, on trains or in corners that large floor scrubbers cannot reach, it is still necessary to manually carry buckets of water to clean the floor. During this process, operators need to constantly change the wastewater. At the same time, in order to ensure the filtration effect, the filter cartridges need to be cleaned or replaced regularly, which increases the workload and is inefficient.

[0004] Chinese invention patent application (publication number CN116850785A) discloses a wastewater circulation filtration device for cleaning and an automatic floor scrubber using the device. The device includes a wastewater filtration container, a clean water collector, a filter element device, and a cleaning structure. The filter element device includes a filamentous hollow fiber membrane ultrafiltration. One end of the ultrafiltration membrane is integrated and connected to the filter outlet, and the other end is filamentous and immersed in the wastewater filtration container. The cleaning structure includes a rotating water plate located at the bottom of the wastewater filtration container and a rotating water plate drive motor for driving the rotating water plate. The cleaning structure may also include a drive motor, which is connected to a flange-type disc of the clean water collector via a connecting rod. By using the rotating water plate to drive the filamentous hollow fiber membrane ultrafiltration to rotate or by rotating the filter element device itself, the filter element device can be cleaned without frequent water changes, effectively extending its service life. The filter element does not need to be disassembled for cleaning, reducing labor input and saving water for cleaning the filter element.

[0005] Chinese invention patent application (publication number CN119483095A) discloses a hollow shaft motor and a cleaning water circulation filtration floor scrubber using the same motor. The hollow shaft motor is driven by the output shaft of the motor body and has an external cover. The hollow shaft has a first connecting part and a second connecting part at both ends. The first connecting part is a mechanical fixed connection structure, and the second connecting part is a split joint structure including a stationary ring part, a rotating ring part and a clamping device. By making the hollow shaft external and the two parts not coaxial, even if water leaks at the meshing point of the hollow shaft, it will not damage the motor, avoid power loss, and facilitate maintenance. The split joint structure, through the contact sealing design of the stationary ring part and the rotating ring part and the use of the clamping device, can realize the relative rotation between the hollow shaft and the external connection while meeting the sealing requirements, effectively preventing water leakage. In the cleaning water circulation filtration floor scrubber using this motor, it effectively prevents the connecting water pipe from getting tangled.

[0006] Therefore, by combining the filter cartridge device and hollow shaft motor technology used in floor scrubbers, a portable wastewater recycling filtration station is designed. This device is small in size, easy to carry and transport, and flexible in use. It solves the inconvenience caused by the manual bucket-carrying water-changing mode, adds a filter cartridge self-cleaning function, reduces the workload of operators, facilitates wastewater recycling, and improves work efficiency, thereby overcoming the shortcomings of existing technologies. Utility Model Content

[0007] The purpose of this utility model is to provide a portable sewage circulation filtration station that is small in size, easy to carry and transport, flexible in use, solves the inconvenience caused by the manual bucket-carrying water changing mode, adds a filter element self-cleaning function, reduces the workload of operators, facilitates sewage recycling, and improves work efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A portable wastewater recycling filtration station includes a filter cartridge device and a hollow shaft motor installed inside. The filter cartridge device features filamentous hollow fiber membrane ultrafiltration, and the hollow shaft motor comprises a motor body and a hollow shaft.

[0010] The housing contains a cleaning water tank and a filtering water tank.

[0011] The bottom of the box is equipped with casters;

[0012] The filter cartridge is installed inside the water filtration tank;

[0013] The motor body is located on the bottom outside of the water filter tank;

[0014] The hollow shaft is connected to the filter element device via a flange;

[0015] Also includes:

[0016] A clean water pipe, wherein the clean water pipe is installed through a hollow shaft and its two ends are respectively connected to a filter element device and a clean water tank;

[0017] A transmission assembly, wherein part of the transmission assembly is connected to a hollow shaft and another part is connected to the motor body;

[0018] The filtered water is drawn by the first water pump and transported through the clean water pipeline to the clean water tank for recycling.

[0019] The motor body drives the hollow shaft to rotate through the transmission component, so that the filter element device rotates synchronously to clean the dirt on the filamentous hollow fiber membrane ultrafiltration.

[0020] The transmission assembly has a driving wheel and a driven wheel;

[0021] The motor body drives the drive wheel;

[0022] The driven wheel is mounted outside the hollow shaft and meshes with the driving wheel for transmission.

[0023] The transmission assembly has a worm and a worm wheel;

[0024] The motor body drives the worm gear;

[0025] The worm gear is mounted outside the hollow shaft and meshes with the worm for transmission.

[0026] Furthermore, the transmission assembly includes:

[0027] A foot pedal, which is installed below the filter tank and extends partially to the outside of the tank;

[0028] The base is installed at the bottom of the housing;

[0029] The foot pedal is pivotally connected to the base and rebounds via a torsion spring.

[0030] A lifting block, wherein the lifting block is connected to one end of the foot pedal;

[0031] The lifting block is helically connected to a threaded shaft;

[0032] A gear transmission unit is fixedly connected to the threaded shaft;

[0033] The gear transmission unit is connected to the outside of the hollow shaft;

[0034] Stepping on the foot pedal causes the driving lifting block to rise along the threaded axis;

[0035] The lifting block moves up and down along the threaded shaft and drives the threaded shaft to rotate, forming a gear transmission unit that rotates synchronously to drive the hollow shaft to rotate.

[0036] Furthermore, a travel groove is provided at one end of the foot pedal;

[0037] A linkage shaft is formed on the lifting block;

[0038] The linkage shaft is inserted into the stroke slot;

[0039] The lifting block moves up and down along the threaded shaft to form a linkage shaft that moves along the trajectory of the stroke groove.

[0040] Furthermore, a protrusion or internal thread is formed on the inner wall where the lifting block connects to the threaded shaft, and the protrusion or internal thread is adapted to the threaded shaft.

[0041] Furthermore, bearings are installed at the upper and lower ends of the threaded shaft and are connected to the filter water tank and the tank body through bearing seats.

[0042] A sewage pipe is connected between the cleaning water tank and the filtering water tank;

[0043] Wastewater in the cleaning tank is drawn out by a second water pump and transported to the filter tank via a wastewater pipeline for filtration.

[0044] The enclosure contains a storage battery.

[0045] The battery is used to provide power to the hollow shaft motor, the first water pump, and the second water pump.

[0046] The bottom of the cleaning water tank is inclined, and a drain hole is provided at the lowest point of the bottom to discharge sediment.

[0047] The portable wastewater recycling filtration station of this utility model, as described above, has the following beneficial effects:

[0048] 1. This device filters sewage through a filter cartridge and circulates clean water and sewage through pipes and a water pump, solving the inconvenience caused by the manual bucket-carrying water-changing mode, avoiding frequent water changes, reducing the workload of operators, and improving work efficiency.

[0049] 2. This device uses a hollow shaft motor and transmission components to clean the filter cartridge, avoiding frequent manual cleaning and replacement of the filter cartridge, effectively extending its service life. The filter cartridge does not need to be disassembled for cleaning, reducing manual labor and saving water for cleaning the filter cartridge. The drive method can be driven by a motor or manually by stepping on a foot pedal, making it flexible and suitable for different scenarios.

[0050] 3. The device is small in size and has wheels installed at the bottom of the box, making it easy to move. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0052] Figure 1 A schematic diagram of the structure of a portable sewage recycling filter station provided in an embodiment of this utility model;

[0053] Figure 2 A cross-sectional view of a portable sewage recycling filter station provided for an embodiment of this utility model (Embodiment 1);

[0054] Figure 3 A cross-sectional view of a portable sewage recycling filter station provided for an embodiment of this utility model (Embodiment 2);

[0055] Figure 4 A cross-sectional view of the transmission component in a portable sewage circulation filter station provided for an embodiment of this utility model (Embodiment 3);

[0056] Figure 5 A cross-sectional view of a transmission component in a portable sewage circulation filter station provided for an embodiment of this utility model (Embodiment 3);

[0057] Figure 6 This is a schematic diagram illustrating the usage process of a portable wastewater recycling filtration station provided in an embodiment of the present invention.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1. Filter cartridge; 2. Hollow shaft motor; 3. Housing; 4. Rollers; 5. Flange; 6. Clean water pipe; 7. Transmission assembly; 9. Sewage pipe;

[0060] 21. Motor body; 22. Hollow shaft;

[0061] 31. Cleaning water tank; 32. Filtering water tank;

[0062] 311. Drain hole;

[0063] 71. Drive wheel; 72. Driven wheel; 73. Worm gear; 74. Worm wheel; 75. Foot pedal; 76. Base; 77. Lifting block; 78. Threaded shaft; 79. Gear transmission unit;

[0064] 751. Stroke slot;

[0065] 771. Linkage shaft;

[0066] 81. First water pump; 82. Second water pump. Detailed Implementation

[0067] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0068] It should be noted that the terms "internal", "both ends", "bottom", "part", "other part", etc. used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for illustrative purposes 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, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0069] See Figures 1-6 As shown;

[0070] A portable wastewater recycling filtration station includes a filter cartridge 1 and a hollow shaft motor 2. The station comprises a housing 3, within which are a cleaning water tank 31 and a filtering water tank 32. The filter cartridge 1, installed at the bottom of the filtering water tank 32, filters wastewater. The filamentous hollow fiber membrane ultrafiltration of the filter cartridge 1 effectively filters the wastewater, making it clear and reusable. The cleaning water tank 31 is used for washing rags or mops. When the water in the cleaning water tank 31 becomes turbid after use, it is recycled back to the filtering water tank 32 for further filtration. To ensure filtration effectiveness, the filter cartridge 1 needs to be cleaned after a period of use. The hollow shaft motor 2 has a motor body 21 and a hollow shaft 22 with different shafts. The motor body 21 drives the hollow shaft 22 to rotate through the transmission assembly 7. The hollow shaft 22 is connected to the filter element device 1 through the flange 5. The filter element device 1 is rotated by the driving force of the motor body 21 and the transmission of the transmission assembly 7 and the hollow shaft 22. The filter element device 1 rotates in the water, and the dirt on the filamentous hollow fiber membrane ultrafiltration is washed away by the water flow impact, thereby cleaning the filter element device 1 so that the filter element device 1 can continue to be used and can maintain the filtration effect, extending the service life of the filter element device 1. The filter element device 1 does not need to be disassembled for cleaning, further saving manpower.

[0071] A clean water pipe 6 is inserted and connected in the middle of the hollow shaft 22. One end of the clean water pipe 6 is connected to the filter element device 1 and the other end is connected to the clean water tank 31. A first water pump 81 is installed on the clean water pipe 6. After the filter element device 1 finishes filtering the sewage, the first water pump 81 draws the filtered clean water through the clean water pipe 6 into the clean water tank 31 for reuse.

[0072] Meanwhile, a sewage pipe 9 is connected between the cleaning water tank 31 and the filter water tank 32. A second water pump 82 is installed on the sewage pipe 9. After the water in the cleaning water tank 31 becomes sewage, the second water pump 82 is started. The second water pump 82 draws the sewage and enters the filter water tank 32 through the sewage pipe 9 for further filtration. This process is repeated to save water, avoid frequent water changes by staff, reduce workload, and improve work efficiency.

[0073] Specifically, the transmission assembly 7 has multiple selection options, as shown in the following embodiments:

[0074] Example 1 (Gear Transmission):

[0075] The transmission assembly 7 has a driving wheel 71 and a driven wheel 72. The driving wheel 71 is connected to the motor body 21, and the driven wheel 72 meshes with the driving wheel 71. The driven wheel 72 is sleeved on the outside of the hollow shaft 21. Driven by the motor body 21, the driving wheel 71 and the driven wheel 72 mesh and transmit power. The rotation of the driven wheel 72 drives the hollow shaft 21 to rotate synchronously. The rotation of the hollow shaft 21 drives the filter element device 1 to rotate synchronously. The filter element device 1 rotates in the water to wash away the dirt on the filamentous hollow fiber membrane ultrafiltration. The motor body 21 can be a servo motor. The motor body 21 can alternately rotate forward and reverse, which can shake off the impurities adhering to the filamentous hollow fiber membrane ultrafiltration, making it easy to clean later.

[0076] Example 2 (worm gear drive):

[0077] The transmission assembly 7 has a worm 73 and a worm wheel 74, which mesh with each other. The hollow shaft motor 2 drives and connects to the worm 73. The worm wheel 74 is sleeved on the outside of the hollow shaft 22. Driven by the motor body 21, the worm 73 and the worm wheel 74 mesh and transmit power. The rotation of the worm wheel 74 drives the hollow shaft 21 to rotate synchronously. The rotation of the hollow shaft 21 drives the filter element device 1 to rotate synchronously. The filter element device 1 rotates in the water to wash away the dirt on the filamentous hollow fiber membrane ultrafiltration.

[0078] Example 3 (Manual pedal transmission):

[0079] When using this transmission component 7, it is entirely manual and requires no electricity. The transmission component 7 includes a foot pedal 75, a base 76, a lifting block 77, a threaded shaft 78, and a gear transmission part 79. The base 76 is installed at the bottom of the housing 3, and the foot pedal 75 is pivotally connected to the base 76. A torsion spring is installed between the foot pedal 75 and the base 76 to allow the foot pedal 75 to rebound. Part of the foot pedal 75 is located inside the housing 3, and the other part is located outside the housing 3 for stepping. The lifting block 77 is connected to one end of the foot pedal 75 located inside the housing 3. A linkage shaft 771 is provided on the lifting block 77. One end of the foot pedal 75 has a travel slot 751, and the linkage shaft 771 is inserted into the travel slot 751. The travel slot 751 is elongated. During the stepping of the foot pedal 75, the linkage shaft 771 slides in the travel slot 751. At the same time, the lifting block 77 passes through... A threaded shaft 78 is inserted and connected. The outer circumference of the threaded shaft 78 forms a threaded structure. The inner circumference of the lifting block 77, which contacts the outer circumference of the threaded shaft 78, can be provided with an internal thread or a protrusion that matches the external thread of the threaded shaft 78. When the operator repeatedly steps on the foot pedal 75, the lifting block 77 moves up and down on the threaded shaft 78, and the movement of the lifting block 77 can drive the threaded shaft 78 to rotate. A gear transmission part 79 is fixedly installed on the threaded shaft 78. The gear transmission part 79 consists of multiple sets of gears that mesh with each other. The gear transmission part 79 is connected to the threaded shaft 78 and the hollow shaft 22 respectively. The rotation of the threaded shaft 78 and the transmission of the gear transmission part 79 cause the hollow shaft 22 to rotate, thereby driving the filter element device 1 to rotate. Bearings are installed at the upper and lower ends of the threaded shaft 78 and are connected to the filter water tank 32 and the housing 3 through bearing seats to make the threaded shaft 78 rotate stably.

[0080] Preferably, a storage battery is installed inside the housing 3. The storage battery is used to provide power to the hollow shaft motor 2, the first water pump 81, and the second water pump 82. A large-capacity storage battery can be installed to increase the overall power supply range. A controller can be installed on the outside of the housing 3. The filtration time and water pumping direction can be controlled at any time through the controller, which is convenient to use.

[0081] Preferably, the bottom of the housing 3 is equipped with rollers 4. When in use, the operator can push the housing 3 to the position that needs to be cleaned, and then clean it with the help of circulating water. This makes it flexible to use and reduces the workload.

[0082] Preferably, the bottom of the cleaning water tank 31 is sloping, and a drain hole 311 is opened at the bottom of the slope. When in use, the outside of the drain hole 311 is sealed. After the cleaning water tank 31 has been used for a period of time, some mud and sand will accumulate at the bottom of the tank. The mud and sand will gather at the drain hole 311 along the slope of the bottom of the tank. The seal on the outside of the drain hole 311 can be opened, and the mud and sand can be discharged from the drain hole 311 by flushing.

[0083] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable sewage circulating filter station, which is internally provided with a filter core device (1) and a hollow shaft motor (2), the filter core device (1) is provided with a filamentous hollow fiber membrane ultrafiltration, and the hollow shaft motor (2) is provided with a motor body (21) and a hollow shaft (22), characterized in that, It comprises: a box (3) in which a clean water tank (31) and a filtered water tank (32) are distributed; a roller (4) is installed at the bottom of the box (3); the filter core device (1) is installed inside the filtered water tank (32); the motor body (21) is located at the bottom outside of the filtered water tank (32); the hollow shaft (22) is connected to the filter core device (1) through the flange (5); It also comprises: a clean water pipeline (6) which is installed through the hollow shaft (22) and connected to the filter core device (1) and the clean water tank (31) respectively; a transmission assembly (7) which is partially connected to the hollow shaft (22) and the other part is connected to the motor body (21); the clean water filtered by the filter core device (1) is extracted by the first water pump (81) and delivered to the clean water tank (31) through the clean water pipeline (6) for recycling; the motor body (21) drives the hollow shaft (22) to rotate through the transmission assembly (7) to form synchronous rotation of the filter core device (1) to realize cleaning of the dirt on the ultrafiltration of the filamentous hollow fiber membrane.

2. The portable sewage circulating filter station according to claim 1, wherein: the transmission assembly (7) has a driving wheel (71) and a driven wheel (72); the motor body (21) is drivingly connected to the driving wheel (71); the driven wheel (72) is installed outside the hollow shaft (22) and is in meshing transmission with the driving wheel (71).

3. The portable sewage circulating filter station according to claim 1, wherein: the transmission assembly (7) has a worm (73) and a worm gear (74); the motor body (21) is drivingly connected to the worm (73); the worm gear (74) is installed outside the hollow shaft (22) and is in meshing transmission with the worm (73).

4. The portable sewage recirculating filtration station of claim 1, wherein, the transmission assembly (7) comprises: a foot pedal (75) which is installed below the filtered water tank (32) and partially extends to the outside of the box (3); a base (76) which is installed at the bottom of the box (3); the foot pedal (75) is pivoted to the base (76) and forms a rebound through a torsional spring; a lifting block (77) which is connected to one end of the foot pedal (75); a threaded shaft (78) which is screw-connected to the lifting block (77); a gear transmission part (79) which is fixedly connected to the threaded shaft (78); the gear transmission part (79) is connected outside the hollow shaft (22); the foot pedal (75) is stepped on to drive the lifting block (77) to rise upward along the threaded shaft (78); the lifting block (77) moves up and down along the threaded shaft (78) and drives the threaded shaft (78) to rotate to form synchronous rotation of the gear transmission part (79) to drive the hollow shaft (22) to rotate.

5. The portable sewage circulating filter station according to claim 4, wherein: one end of the foot pedal (75) is provided with a stroke notch (751); the lifting block (77) is formed with a linkage shaft (771); the linkage shaft (771) is inserted into the stroke notch (751). The lifting block (77) moves up and down along the threaded shaft (78) to form a linkage shaft (771) moving along the trajectory of the stroke notch (751).

6. The portable sewage circulating filter station according to claim 5, characterized in that: The lifting block (77) is connected with the inner wall of the threaded shaft (78) to form a protrusion or internal thread, which is matched with the threaded shaft (78).

7. The portable sewage circulating filter station according to claim 6, characterized in that: The upper and lower ends of the threaded shaft (78) are installed with bearings and connected to the filter water tank (32) and the box (3) through the bearing seat.

8. The portable sewage circulating filter station according to claim 1, characterized in that: The sewage pipeline (9) is connected between the clean water tank (31) and the filter water tank (32); The sewage in the clean water tank (31) is extracted by the second water pump (82) and delivered to the filter water tank (32) through the sewage pipeline (9) for filtration.

9. The portable sewage circulating filter station according to claim 8, characterized in that: The box (3) is internally installed with a storage battery; The storage battery is used to provide electric energy for the hollow shaft motor (2), the first water pump (81), and the second water pump (82).

10. The portable sewage circulating filter station according to claim 1, characterized in that: The bottom of the clean water tank (31) is inclined, and a sewage discharge hole (311) is formed at the lowest position of the bottom to discharge sediments.

Citation Information

Patent Citations

  • Sewage circulating filtering device for cleaning and automatic driving scrubber applying same

    CN116850785A

  • Hollow shaft motor and cleaning water circulating filtration scrubber using same

    CN119483095A