A sewage tank anti-sewage air filtration system

Abstract

The present invention discloses a sewage tank anti-sewage air filtration system, comprising: a sewage tank assembly, comprising a sewage tank body, a sewage tank cover, an air filter component arranged in the sewage tank cover, an air filter fixing plate arranged at the lower end of the air filter component and a water suction port arranged on the air filter fixing plate, wherein a vacuum motor is arranged in the sewage tank body, and further comprising a sewage filter component, wherein a sewage impurity treatment component is arranged on the sewage filter component; and an air filter assembly, comprising an air filter tube arranged on the sewage tank body, a plurality of air filter inner tubes arranged in the air filter tube, an air filter component arranged on the air filter inner tube and an air filter clamp arranged on the air filter component, wherein each of the air filter inner tubes is provided with a rotating cylinder, and an air filter ring plate is arranged in the rotating cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of sewage air filtration, and in particular to a sewage tank anti-sewage air filtration system. Background Art

[0002] A floor scrubber is a cleaning machine that is suitable for cleaning hard floors and sucking out wastewater at the same time, and taking the wastewater away from the site. It has the advantages of environmental protection, energy saving, and high efficiency. Floor scrubbers are divided into semi-automatic floor scrubbers, fully automatic floor scrubbers, hand-push floor scrubbers, and ride-on floor scrubbers.

[0003] At present, riding floor scrubbers have the problem that sewage enters the vacuum motor through the air duct, causing abnormal noise from the vacuum motor or even melting the water tank. In some special application scenarios, there is a problem that harmful solid particles enter the vacuum motor through the air duct, including the installation cavity, causing damage to the motor. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing sewage tank anti-sewage air filtration system, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a sewage tank anti-sewage air filtering system.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a sewage tank anti-sewage air filtration system, comprising:

[0008] The sewage tank assembly comprises a sewage tank body, a sewage tank cover, an air filter component arranged in the sewage tank cover, an air filter fixing plate arranged at the lower end of the air filter component and a water suction port arranged on the air filter fixing plate. A vacuum motor is arranged in the sewage tank body.

[0009] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, the sewage tank cover is opened at the upper end of the sewage tank body, the upper end of the sewage tank cover is provided with an opening, and the lower end is downwardly connected to the interior of the sewage tank body, the air filtering component includes an air filter arranged on an air filtering fixing plate, and a sealing ring is provided between the air filter and the air filtering fixing plate.

[0010] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, it also includes an air filtration assembly, including an air filtration tube arranged on the sewage tank body, an air filtration inner tube arranged in the air filtration tube, and an air filtration component arranged on the air filtration inner tube.

[0011] The air filter component comprises a first air filter sleeve arranged on the air filter inner tube, a first filter blade arranged in the first air filter sleeve, a second filter blade arranged in the first air filter sleeve, a drive motor arranged on the first air filter sleeve, and an adjustment member arranged between the first filter blade and the second filter blade;

[0012] The first filter blade is fixedly connected to the first air filter sleeve, the first filter blade and the second filter blade are arranged opposite to each other, the driving motor drives the rotation of the first air filter sleeve, the air filter tube is connected to the first air filter sleeve, the first filter blade is arranged at an end away from the driving motor, an exhaust pipe is provided at the end of the first air filter sleeve, and an exhaust hole is opened on the exhaust pipe.

[0013] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, the adjustment member includes a rotating rod arranged on the first air filter sleeve, a bearing arranged on the rotating rod, a rotating secondary wheel arranged on the bearing, and a plurality of secondary filter blades arranged on the rotating secondary wheel.

[0014] The first filter blade and the second filter blade are both provided with an air filter plate, the air filter plate is provided with filter holes, the first filter blade is provided with a first baffle ring, the front end of the first baffle ring extends to the second filter blade, the second filter blade is provided with a second baffle ring, and the edge of the second baffle ring is rotatably connected to the first baffle ring.

[0015] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, wherein: the first filter blade and the second filter blade are both provided with a plurality of air guide strips, the air guide strips are provided with a plurality of adsorption holes, and the adsorption holes are provided with adsorption parts,

[0016] The adsorbent comprises an aerogel adsorbent and activated carbon arranged in an adsorption hole, and a filter gauze coated outside the aerogel adsorbent and the activated carbon.

[0017] As a preferred solution of the sewage tank anti-sewage air filtration system described in the present invention, the air guide strips include straight air guide strips arranged in a circular array on the first filter blade and the second filter blade, and curved air guide strips connected to the ends of the straight air guide strips, and the straight air guide strips are provided with air guide edges.

[0018] As a preferred solution of the sewage tank anti-sewage air filtration system described in the present invention, the auxiliary filtering blades include a plurality of adjustment wind plates arranged on the rotating auxiliary wheel, adjustment grooves opened on the adjustment wind plates, a plurality of extension plates slidably connected in the adjustment grooves, and a moving part arranged on the extension plates, the moving part is used to control the sliding of the extension plates, an inclined wind surface is arranged at the end of the extension plates, a plurality of the extension plates are mutually socketed, and micro air guide strips are arranged on the extension plates.

[0019] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, the moving part includes a sliding groove opened on the side wall of the extension plate, a pull rod rotatably connected in the sliding groove, and a long strip plate arranged at the end of the pull rod, the end of the long strip plate is fixedly connected to the adjacent extension plate, and the pull rod is rotatably connected to the long strip plate.

[0020] Wherein, a rotating part is provided between the long strip plate and the pull rod.

[0021] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, the rotating member includes a rack arranged at the groove wall of the sliding groove, a gear arranged at the end of the pull rod and meshing with the rack, and a lever arranged inside the sliding groove, and a snap ring is arranged at the front end of the lever, and the snap ring is connected to the pull rod.

[0022] Wherein, a first cylinder is arranged at the rear end of each rack, and a second cylinder is arranged at the rear end of the shifting rod.

[0023] As a preferred solution of the sewage tank anti-sewage air filtration system of the present invention, a sewage filtering component is provided in the sewage tank body, and the sewage filtering component includes a sewage filter plate arranged in the sewage tank body and a filter mesh arranged on the sewage filter plate.

[0024] The beneficial effects of the present invention are as follows: when the driving motor drives the connecting cylinder to rotate, the connecting cylinder will synchronously drive the first filter blade to rotate, and the rotation of the first filter blade will drive the airflow to hit the second filter blade. When the first filter blade rotates, the airflow will disperse outward due to centrifugal force, and then hit the second filter blade from near the edge, because the rotation of the first filter blade adds eddy current to the airflow leaving the first filter blade, and the airflow leaving the second filter blade flows from a position close to the center of the second filter blade to the first filter blade.

[0025] As the rotation of the first filter blade continues to accelerate, the flow rate of the driving airflow continues to accelerate, which in turn causes the rotation speed of the second filter blade to gradually increase, and the rotation direction of the second filter blade is consistent with the rotation direction of the first filter blade. When the second filter blade initially rotates, the rotation speed is very low, causing the driving airflow to hit the first filter blade along a straight line. At this time, the airflow speed of the connecting tube and the covering tube close to the tube wall is high, while the airflow speed in the center is relatively low. The rotation of the second filter blade will also cause the airflow to disperse outward. Because the rotation speed of the second filter blade is relatively low at the beginning, the airflow leaving the second filter blade flows almost in a straight line. When the air When the airflow moves to the rotating secondary wheel, it will push the rotating secondary wheel to rotate in the direction opposite to the rotation direction of the second filter blade. Due to the one-way ring teeth set in the rotating secondary wheel, the rotating secondary wheel will not rotate. At this time, the airflow will be deflected along the blades of the rotating secondary wheel, and the airflow will hit the blades of the first filter blade again, further increasing the rotation speed of the first filter blade and generating greater torque, and making the airflow from the first filter blade to the second filter blade have greater force, thereby continuously increasing the rotation speed and torque of the second filter blade, and then the above process will be repeated continuously, so that the internal airflow can be continuously adsorbed and filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0027] Figure 1 It is a schematic diagram of the overall structure of the sewage tank anti-sewage air filtration system of the present invention.

[0028] Figure 2 It is a schematic cross-sectional view of the overall structure of the sewage tank anti-sewage air filtration system of the present invention.

[0029] Figure 3 The present invention is a sewage tank anti-sewage air filtration system Figure 2 Enlarged schematic diagram of part A in the middle.

[0030] Figure 4 It is a schematic diagram of the airflow acceleration component of the sewage tank anti-sewage air filtration system of the present invention.

[0031] Figure 5 It is a schematic diagram of the explosion of the airflow acceleration component of the sewage tank anti-sewage air filtration system of the present invention.

[0032] Figure 6 It is a schematic diagram of the explosion of the airflow acceleration component of the sewage tank anti-sewage air filtration system of the present invention.

[0033] Figure 7 It is a schematic diagram of the moving parts of the sewage tank anti-sewage air filtration system of the present invention. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example

[0038] Reference Figure 1-7 , which is the first embodiment of the present invention, provides a sewage tank anti-sewage air filtration system, including a sewage tank assembly 100. In this embodiment, the sewage tank assembly 100 includes a sewage tank body 101, a sewage tank cover 107 opened above the sewage tank body, an air filter component 103 arranged in the sewage tank cover 107, an air filter fixing plate 104 arranged at the lower end of the air filter component 103, and a water suction port 105 arranged on the air filter fixing plate 104. A vacuum motor 106 is arranged in the sewage tank body 101.

[0039] Furthermore, a sewage tank cover 107 is provided at the upper end of the sewage tank body 101, an opening is provided at the upper end of the sewage tank cover 107, and the lower end is downwardly connected to the interior of the sewage tank body 101, the air filter component 103 includes an air filter 103a provided on the air filter fixing plate 104, a sealing ring is provided between the air filter 103a and the air filter fixing plate 104, the air filter 103a is installed in the sewage tank cover 107, the air filter fixing plate 104 is installed on the sewage tank cover 107, the air filter sealing gasket is installed on the sewage tank cover 107 and the air filter fixing plate 104, the water suction port 105 sealing ring is installed on the sewage tank body 101, and the vacuum motor 106 is installed inside the sewage tank body 101.

[0040] Preferably, a cavity groove is provided at the upper end of the sewage tank body 101, a platform is provided on the cavity groove, an air inlet is opened on the platform, and a sewage suction port is provided in the cavity. The height of the air inlet is higher than the sewage suction port, so as to prevent sewage from entering the air inlet and causing pollution.

[0041] In this embodiment, the sewage filtering component 500 includes a sewage filter plate 501 arranged in the sewage tank body 101 and a filter mesh 502 arranged on the sewage filter plate 501. The sewage filter plate 501 is longitudinally arranged in the sewage tank body 101, and there are multiple sewage filter plates 501, which are arranged side by side. When sewage passes through, the sewage passes through several filter meshes 502 to achieve filtration, thereby preventing solid garbage from entering the sewage tank and clogging the sewage outlet.

[0042] Furthermore, the present invention also includes an air filter assembly 200. In the present embodiment, the air filter assembly 200 includes an air filter tube 201 disposed in the sewage tank body 101, the air filter tube 201 is connected to the vacuum motor 106, an air filter inner tube 202 disposed in the air filter tube 201, and an air flow acceleration component 300 disposed on the air filter inner tube 202.

[0043] Furthermore, in the present embodiment, the airflow acceleration component 300 includes a first air filter sleeve 301 arranged on the air filter inner tube 202, a first filter blade 302 arranged in the first air filter sleeve 301, a second filter blade 303 arranged in the first air filter sleeve 301, a drive motor 304 arranged on the first air filter sleeve 301, and an adjustment member 305 arranged between the first filter blade 302 and the second filter blade 303. The first air filter sleeve 301 is arranged on the inner side of the rotating cylinder 203, and the two are connected by bolts. A plurality of ventilation ducts are arranged on the air filter inner tube 202, and the ventilation ducts are connected to the first air filter sleeve 301 of the pipeline, so that the airflow enters the first air filter sleeve 301 for filtration.

[0044] Furthermore, the first filter blade 302 is fixedly connected to the first air filter sleeve 301, and the first filter blade 302 and the second filter blade 303 are arranged opposite to each other. A bearing 305b is arranged at a hinge position between the second filter blade 303 and the first air filter sleeve 301, so that when the driving motor 304 drives the first air filter sleeve 301 to rotate, the second filter blade 303 will not be driven to rotate together. The air filter tube 201 is connected to the first air filter sleeve 301, and the first filter blade 302 is arranged at an end away from the driving motor 304.

[0045] In this embodiment, the adjustment member 305 includes a rotating rod 305a arranged on the first air filter sleeve 301, a bearing 305b arranged on the rotating rod 305a, a rotating secondary wheel 305c arranged on the rotating rod 305a, and a plurality of secondary filter blades 305d arranged on the rotating secondary wheel 305c, and the first filter fan blade 302 is sleeved with the bearing 305b, and the rotating secondary wheel 305c is arranged between the first filter fan blade 302 and the second filter fan blade 303.

[0046] Furthermore, a first baffle ring 306 is provided on the first filter blade 302, and the front end of the first baffle ring 306 extends to the second filter blade 303. A second baffle ring 307 is provided on the second filter blade 303, and the edge of the second baffle ring 307 is rotatably connected to the first baffle ring 306. The diameters of the first baffle ring 306 and the second baffle ring 307 are both 3 / 4 of the diameters of the first filter blade 302 and the second filter blade 303. A friction layer is provided on the abutting surfaces of the first baffle ring 306 and the second baffle ring 307, and the friction layer can ensure the sealing between the first baffle ring 306 and the second baffle ring 307, while ensuring the respective rotations of the first baffle ring 306 and the second baffle ring 307.

[0047] Furthermore, a plurality of air guide strips 309 are disposed on the first filter blade 302 and the second filter blade 303 . A plurality of adsorption holes 308 are formed on the air guide strips 309 , and an adsorption member is disposed in each adsorption hole 308 .

[0048] Preferably, in the present embodiment, the adsorbent includes an aerogel adsorbent and activated carbon disposed in the adsorption hole 308 , and a filter gauze coated on the aerogel adsorbent and the activated carbon.

[0049] Furthermore, the wind guide strips 309 include straight wind guide strips arranged in an annular array on the first filter blade 302 and the second filter blade 303 and curved wind guide strips connected to the ends of the straight wind guide strips, and wind guide edges are arranged on the straight wind guide strips.

[0050] Preferably, the connection positions of the first baffle ring 306 and the second baffle ring 307 are fixed on the air guide strip 309, so that the first baffle ring 306 and the second baffle ring 307 can rotate with the first filter blade 302 and the second filter blade 303, and the rotating sub-wheel 305c is arranged in the area formed by the first baffle ring 306 and the second baffle ring 307.

[0051] Furthermore, in the present embodiment, the auxiliary filtering blade 305d includes a plurality of adjustment air plates 400 arranged on the rotating auxiliary wheel 305c, an adjustment slot 401 opened on the adjustment air plate 400, a plurality of extension plates 402 slidably connected in the adjustment slot 401, and a moving part 403 arranged on the extension plate 402, the moving part 403 is used to control the sliding of the extension plate 402, an inclined wind surface is arranged at the end of the extension plate 402, a plurality of extension plates 402 are mutually socketed, and a micro air guide strip 309 is arranged on the extension plate 402.

[0052] In this embodiment, the moving member 403 includes a sliding groove 403a provided on the side wall of the extension plate 402, the sliding groove 403a is provided on the end side of the extension plate 402, and a pull rod 403b is connected in the sliding groove 403a, and a collar is provided at one end of the pull rod 403b extending into the sliding groove 403a, the collar allows the pull rod 403b to rotate, and the collar can slide in the sliding groove 403a, and the pull rod 403b is arranged at the end side position of the sliding groove 403a. The pull rod 403b extends outward, and a long plate 403c is provided at the end of the pull rod 403b. The long plate 403c extends outward, and the long plate 403c extends a conical rod to be connected to the end of another extension plate 402, so that after the long plate 403c rotates, it will synchronously drive the rotation of the extension plate 402 and approach the position of the adjacent extension plate 402. The long plate 403c rotates with the rotation of the pull rod 403b, and after the rotation, it will drive the rotation of the extension plate 402.

[0053] Among them, a rotating member 404 is provided between the long strip plate 403c and the pull rod 403b. In the present embodiment, the rotating member 404 includes a rack 404a arranged at the groove wall of the sliding groove 403a, the rack 404a is arranged near the extension plate 402 and away from the auxiliary filtering blade 305d, and the rack 404a extends outward, and at the same time, a gear 404b meshing with the rack 404a is also provided on the pull rod 403b, and the gear 404b is connected to the pull rod 403b, a lever 404c is provided on the sliding groove 403a, a retaining ring 404e is provided at the front end of the lever 404c, and the retaining ring 404e is connected to the pull rod 403b, a first cylinder is provided at the rear end of the rack 404a, and a second cylinder 404d is provided at the rear end of the lever 404c.

[0054] Preferably, an exhaust pipe 304a is provided at the end of the first air filter sleeve 301, and an exhaust hole 304b is opened on the exhaust pipe 304a.

[0055] Operation process: When the driving motor 304 drives the connecting tube to rotate, the connecting tube will synchronously drive the first filter fan blade 302 to rotate. The rotation of the first filter fan blade 302 will drive the airflow to hit the second filter fan blade 303. When the first filter fan blade 302 rotates, the airflow will disperse outward due to centrifugal force, and then hit the second filter fan blade 303 from near the edge, because the rotation of the first filter fan blade 302 adds vortex to the airflow leaving the first filter fan blade 302, and the airflow leaving the second filter fan blade 303 flows from the center position near the second filter fan blade 303 to the first filter fan blade 302.

[0056] As the first filter blade 302 rotates faster and faster, the flow rate of the driving airflow increases, which in turn causes the rotation speed of the second filter blade 303 to gradually increase. The rotation direction of the second filter blade 303 is consistent with the rotation direction of the first filter blade 302. When the second filter blade 303 rotates initially, the rotation speed is very low, causing the driving airflow to hit the first filter blade 302 along a straight line. At this time, the airflow speed of the connecting tube and the covering tube close to the tube wall is high, while the airflow speed at the center is low. The rotation of the second filter blade 303 will also cause the airflow to disperse outward. Because the second filter blade 303 rotates at a low speed at the beginning, the airflow leaving the second filter blade 303 is almost Flowing in a straight line, when the airflow moves to the rotating sub-wheel 305c, it will push the rotating sub-wheel 305c to rotate in the direction opposite to the rotation direction of the second filter fan blade 303. Due to the one-way ring teeth set in the rotating sub-wheel 305c, the rotating sub-wheel 305c will not rotate. At this time, the airflow will be deflected along the blades of the rotating sub-wheel 305c, and the airflow will hit the blades of the first filter fan blade 302 again, further increasing the rotation speed of the first filter fan blade 302 and generating a greater torque, and making the airflow from the first filter fan blade 302 to the second filter fan blade 303 have a greater force, thereby continuously increasing the rotation speed and torque of the second filter fan blade 303.

[0057] At this time, the operator can control the second cylinder 404d so that the lever 404c pushes the pull rod 403b outward, thereby pushing the extension plate 402 outward. Then, when the lever 404c pushes the pull rod 403b to the rack 404a, the rack 404a and the gear 404b engage. At this time, the second cylinder 404d stops moving, and the first cylinder pushes the rack 404a to slide, thereby causing the gear 404b to rotate, and then drives the pull rod 403b to rotate. The pull rod 403b is connected through the long plate 403c, driving the extension plate 402 to rotate, thereby changing the angle between the plurality of extension plates 402, so that the flow direction of the passing airflow can be adjusted, and the extension plate 402.

[0058] The above process will be repeated continuously, so that the internal airflow can be continuously adsorbed and filtered, and then the high-speed and filtered airflow is sent out from the exhaust pipe 304a to the vacuum motor 106.

[0059] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0060] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0061] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sewage tank anti-sewage air filtration system, characterized by: include, A sewage tank assembly (100) comprises a sewage tank body (101), a sewage tank cover (107), a cavity provided in the sewage tank body (101), an air filter component (103) provided in the sewage tank cover (107), an air filter fixing plate (104) provided at the lower end of the air filter component (103), and a water suction port (105) provided on the air filter fixing plate (104); a vacuum motor (106) is provided in the sewage tank body (101); It also includes an air filter assembly (200), comprising an air filter tube (201) arranged on the sewage tank body (101), an air filter inner tube (202) arranged in the air filter tube (201), and an air flow acceleration component (300) arranged on the air filter inner tube (202). The airflow acceleration component (300) comprises a first air filter sleeve (301) arranged on an air filter inner tube (202), a first filter blade (302) arranged in the first air filter sleeve (301), a second filter blade (303) arranged in the first air filter sleeve (301), a drive motor (304) arranged on the first air filter sleeve (301), and an adjustment member (305) arranged between the first filter blade (302) and the second filter blade (303); The first filter blade (302) is fixedly connected to the first air filter sleeve (301); the first filter blade (302) and the second filter blade (303) are arranged opposite to each other; the drive motor (304) drives the first air filter sleeve (301) to rotate; the air filter tube (201) is connected to the first air filter sleeve (301); the first filter blade (302) is arranged at an end away from the drive motor (304); an exhaust pipe (304a) is provided at the end of the first air filter sleeve (301); and an exhaust hole (304b) is provided on the exhaust pipe (304a).

2. The sewage tank anti-sewage air filtration system according to claim 1, characterized in that: The sewage tank cover (107) is at the upper end of the sewage tank body (101); an opening is formed at the upper end of the sewage tank cover (107); and the lower end is downwardly connected to the interior of the sewage tank body (101); the air filter component (103) comprises an air filter (103a) arranged on an air filter fixing plate (104); and a sealing ring is provided between the air filter (103a) and the air filter fixing plate (104).

3. The sewage tank anti-sewage air filtration system as claimed in claim 1, characterized in that: The adjusting member (305) comprises a rotating rod (305a) arranged on the first air filter sleeve (301), a bearing (305b) arranged on the rotating rod (305a), a rotating secondary wheel (305c) arranged on the bearing (305b), and a plurality of secondary filtering blades (305d) arranged on the rotating secondary wheel (305c). A first retaining ring (306) is provided on the first filtering blade (302), the front end of the first retaining ring (306) extends to the second filtering blade (303), a second retaining ring (307) is provided on the second filtering blade (303), and the edge of the second retaining ring (307) is rotatably connected to the first retaining ring (306).

4. The sewage tank anti-sewage air filtration system according to claim 1, characterized in that: The first filtering fan blade (302) and the second filtering fan blade (303) are both provided with a plurality of air guide strips (309), the air guide strips (309) are provided with a plurality of adsorption holes (308), and adsorption elements are provided in the adsorption holes (308). The adsorbent comprises an aerogel adsorbent and activated carbon arranged in an adsorption hole (308), and a filter mesh coated outside the aerogel adsorbent and the activated carbon.

5. The sewage tank anti-sewage air filtration system according to claim 4, characterized in that: The wind guide strips (309) comprise straight wind guide strips arranged in an annular array on the first filter blade (302) and the second filter blade (303), and curved wind guide strips connected to the ends of the straight wind guide strips, and the straight wind guide strips are provided with wind guide edges.

6. The sewage tank anti-sewage air filtration system as claimed in claim 3, characterized in that: The auxiliary filtering blade (305d) comprises a plurality of adjusting wind plates (400) arranged on the rotating auxiliary wheel (305c), an adjusting slot (401) provided on the adjusting wind plate (400), a plurality of extension plates (402) slidably connected in the adjusting slot (401), and a moving member (403) arranged on the extension plate (402), wherein the moving member (403) is used to control the sliding of the extension plate (402), an inclined wind surface is arranged at the end of the extension plate (402), a plurality of the extension plates (402) are mutually sleeved with each other, and a micro air guide strip (309) is arranged on the extension plate (402).

7. The sewage tank anti-sewage air filtration system according to claim 6, characterized in that: The moving member (403) comprises a sliding groove (403a) provided on the side wall of the extension plate (402), a pull rod (403b) rotatably connected in the sliding groove (403a), and a long strip plate (403c) arranged at the end of the pull rod (403b), wherein the end of the long strip plate (403c) is fixedly connected to the adjacent extension plate (402), and the pull rod (403b) is rotatably connected to the long strip plate (403c). Wherein, a rotating member (404) is provided between the long strip plate (403c) and the pull rod (403b).

8. The sewage tank anti-sewage air filtration system according to claim 7, characterized in that: The rotating member (404) comprises a rack (404a) arranged at the groove wall of the sliding groove (403a), a gear (404b) arranged at the end of the pull rod (403b) and meshing with the rack (404a), and a shifting rod (404c) arranged inside the sliding groove (403a), wherein a snap ring (404e) is arranged at the front end of the shifting rod (404c), and the snap ring (404e) is connected to the pull rod (403b). Wherein, a first cylinder is provided at the rear end of each rack (404a), and a second cylinder (404d) is provided at the rear end of the shifting rod (404c).

9. The sewage tank anti-sewage air filtration system as claimed in claim 1, characterized in that: A sewage filter component (500) is provided in the sewage tank body (101), and the sewage filter component (500) comprises a sewage filter plate (501) provided in the sewage tank body (101) and a filter mesh (502) provided on the sewage filter plate (501).

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