Disassembly-free blowdown filter

Abstract

The application discloses a dismounting-free blowdown filter, a rotating shaft of which is rotatably installed on a mounting cap, one end of the rotating shaft in the length direction thereof extends into a mounting cavity through a blowdown cavity, and the other end of the rotating shaft in the length direction thereof is exposed on a valve cover; one end of a filter cylinder in the length direction thereof is connected to the valve cover and is in communication with the blowdown cavity, and the other end of the filter cylinder in the length direction thereof is connected to an inlet channel and seals the inlet channel; and a first cleaning member is arranged on the outer periphery of the rotating shaft. The dismounting-free blowdown filter is characterized in that the valve cover is connected to the free end of a cleaning seat, a blowdown cavity is arranged on the valve cover in the length direction thereof and corresponds to the length direction of the cleaning seat, a blowdown opening is arranged on the blowdown cavity, one end of the rotating shaft in the length direction thereof extends into the mounting cavity through the blowdown cavity, the other end of the rotating shaft in the length direction thereof is exposed on the valve cover, the first cleaning member is arranged on the outer periphery of the rotating shaft, the free end of the first cleaning member away from the rotating shaft is matched with the inner wall of the filter cylinder, and the first cleaning member completes the cleaning process when the rotating shaft rotates.

Description

Technical Field

[0001] This invention relates to the field of pipeline installations, and in particular to a non-disassembly-required sewage filter. Background Technology

[0002] The self-draining backwash filter is an advanced filtration device with numerous advantages, making it an ideal choice for many industrial applications. It boasts high-efficiency filtration performance. Utilizing unique filter materials and design, it effectively removes various impurities and particulate matter from water (or other media), ensuring the cleanliness of the water (or other media). This filter offers high filtration efficiency and stable filtration results, meeting the requirements of various industrial water (or other media). The self-draining backwash filter features an automatic backwash function. During the filtration process, when impurities accumulate to a certain level, the filter automatically activates the backwash function to discharge the impurities, ensuring continuous and efficient operation. This automatic backwash function reduces manual intervention and operational complexity, improving production efficiency. Furthermore, the self-draining backwash filter is easy to maintain and clean. Due to its unique structure and materials, the filter can be easily disassembled and cleaned, facilitating thorough internal cleaning and maintenance. This extends the filter's service life and ensures long-term stable operation.

[0003] However, for impurity particles in high-viscosity liquid media, the negative impact on the filtration function of the filter is significant, and it also brings greater cleaning difficulties. Summary of the Invention

[0004] The main objective of this invention is to provide a non-disassembly-resistant sewage filter, which aims to solve the problem that the filtration function of the filter is greatly negatively affected in high-viscosity fluid environments, and also brings great cleaning difficulties.

[0005] To achieve the above objectives, the present invention provides a non-disassembly-resistant sewage filter, comprising: The main pipeline has a flow channel in the middle, which includes an inlet channel and an outlet channel. A cleaning seat is connected to the middle of the main pipe. The middle of the cleaning seat is an installation cavity connected to the flow pipe, and the end of the cleaning seat away from the main pipe is open. A valve cover is connected to the free end of the cleaning seat. A drain chamber is provided on the valve cover along the length direction of the cleaning seat. A drain port is provided on the drain chamber. An installation cap is detachably connected to the end of the valve cover away from the cleaning seat. The end of the drain chamber along the length direction closer to the cleaning seat is the feed port. A rotating shaft is rotatably mounted on the mounting cap. One end of the rotating shaft in the longitudinal direction passes through the sewage discharge chamber and extends into the mounting chamber, while the other end of the rotating shaft in the longitudinal direction protrudes from the valve cover. The filter cartridge has one end connected to the valve cover along its length and communicating with the drain chamber, and the other end connected to the inlet channel along its length and sealing the inlet channel. A first cleaning component is disposed on the outer periphery of the rotating shaft, and the free end of the first cleaning component away from the rotating shaft matches the inner wall of the filter cartridge.

[0006] Furthermore, the first cleaning element is a brush-like structure and extends along the length of the rotating shaft, with the first cleaning element extending at an angle of 10 to 30 degrees in the circumferential direction of the rotating shaft.

[0007] Furthermore, the rotating shaft is movably connected along the length of the valve cover, and the filter cylinder is conical in shape.

[0008] Furthermore, the first cleaning component is plate-shaped and spirally disposed on the outer periphery of the rotating shaft, and a second cleaning component is disposed on the outer periphery of the rotating shaft at a position corresponding to the sewage discharge chamber. The second cleaning component is plate-shaped and spirally disposed on the outer periphery of the rotating shaft, wherein the spiral directions of the first cleaning component and the second cleaning component are consistent, and the free end of the second cleaning component in the width direction extends toward the inner wall of the sewage discharge chamber.

[0009] Furthermore, the rotating shaft is movably connected to the valve cover along its length, the filter cylinder is conical in shape, and the diameter of the filter cylinder tends to decrease towards the valve cover. The overall outer circumferential shape of the first cleaning component matches the inner circumference of the filter cylinder.

[0010] Furthermore, the drain chamber is cone-shaped and its diameter increases in the direction close to the cleaning seat. The outer periphery of the second cleaning component matches the inner periphery of the drain chamber. A first cover plate is provided on the rotating shaft. The first cover plate is disposed in the drain chamber and is used to close the feed inlet.

[0011] Furthermore, the free end of the first cleaning component away from the rotating shaft is connected to bristles.

[0012] Furthermore, the first cleaning component is a mesh plate, and the second cleaning component is a solid plate.

[0013] Furthermore, a second cover plate is provided on the rotating shaft, which is disposed in the mounting cavity and is used to close the feed port.

[0014] Furthermore, it also includes a drive motor for driving the rotation of the shaft, the drive motor being disposed at the other end corresponding to the length direction of the shaft.

[0015] The present invention provides a non-disassembly-resistant sewage filter, wherein a valve cover is connected to the free end of a cleaning seat, a sewage discharge chamber is provided in the length direction of the valve cover corresponding to the length direction of the cleaning seat, a sewage discharge port is provided in the sewage discharge chamber, a mounting cap is detachably connected to the end of the valve cover away from the cleaning seat, a rotating shaft is rotatably mounted on the mounting cap, one end of the rotating shaft in the length direction passes through the sewage discharge chamber and extends into the mounting chamber, and the other end of the rotating shaft in the length direction protrudes from the valve cover, and the rotating shaft can be driven manually or electrically; a first cleaning component is provided on the outer periphery of the rotating shaft, and the free end of the first cleaning component away from the rotating shaft matches the inner wall of the filter cylinder; when the rotating shaft rotates, the first cleaning component completes the cleaning process. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the non-disassembly sewage filter according to the first embodiment of the present invention; Figure 2 This is a schematic diagram of the rotating shaft in the non-disassembly sewage filter of the second embodiment of the present invention; Figure 3 This is a schematic diagram of the installation of the rotating shaft in the non-disassembly sewage filter of the second embodiment of the present invention; Figure 4 This is a cross-sectional view of the installation of the rotating shaft in the non-disassembly sewage filter according to the second embodiment of the present invention. Figure 5 This is a schematic diagram of the rotating shaft in the non-disassembly sewage filter of the third embodiment of the present invention; Figure 6 This is a schematic diagram of the installation of the rotating shaft in the non-disassembly sewage filter of the third embodiment of the present invention, and it is in an open state (sectional view). Figure 7 This is a schematic diagram of the installation of the rotating shaft in the non-disassembly sewage filter of the third embodiment of the present invention, and it is in a closed state (sectional view). Figure 8 This is a schematic diagram of the rotating shaft in the non-disassembly sewage filter of the fourth embodiment of the present invention; Figure 9 This is a schematic diagram of the installation of the rotating shaft in the non-disassembly sewage filter according to the fourth embodiment of the present invention, and it is in a closed state (sectional view). Figure 10 This is a schematic diagram of the installation of the rotating shaft in the non-disassembly sewage filter of the fourth embodiment of the present invention, and it is in an open state (sectional view).

[0017] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0019] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any of the units and all combinations of one or more associated listed items.

[0020] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0021] Reference Figures 1 to 10 In one embodiment of the present invention, a non-disassembly-required sewage filter includes: The main pipe 100 has a flow pipe in the middle, which includes an inlet channel 110 and an outlet channel 120. A cleaning seat 200 is connected to the middle of the main pipe 100. The middle of the cleaning seat 200 is an installation cavity 210 connected to the flow pipe. The end of the cleaning seat 200 away from the main pipe 100 is open. A valve cover 300 is connected to the free end of the cleaning seat 200. A drain chamber 310 is provided in the length direction of the valve cover 300 corresponding to the length direction of the cleaning seat 200. A drain port 311 is provided on the drain chamber 310. An installation cap 320 is detachably connected to the end of the valve cover 300 away from the cleaning seat 200. The end of the drain chamber 310 near the cleaning seat 200 in the length direction is the feed port. A rotating shaft 400 is rotatably mounted on the mounting cap 320. One end of the rotating shaft 400 in the longitudinal direction passes through the sewage discharge chamber 310 and extends into the mounting chamber 210. The other end of the rotating shaft 400 in the longitudinal direction protrudes from the valve cover 300. The filter cartridge 500 has one end connected to the valve cover 300 in the longitudinal direction and communicates with the sewage discharge chamber 310. The other end of the filter cartridge 500 in the longitudinal direction is connected to the inlet channel 110 and closes the inlet channel 110. A first cleaning component 600 is disposed on the outer periphery of the rotating shaft 400, and the free end of the first cleaning component 600 away from the rotating shaft 400 matches the inner wall of the filter cartridge 500.

[0022] In existing technologies, impurity particles in high-viscosity liquid media have a significant negative impact on the filtration function of filters, and also bring considerable cleaning difficulties.

[0023] This invention provides a non-disassembly-required sewage filter: The main pipe 100 has a flow channel in the middle, which includes an inlet channel 110 and an outlet channel 120. The main pipe 100 is the main structure, and the flow direction is fixed during use, that is, it enters from the inlet channel 110 and exits from the outlet channel 120.

[0024] The cleaning seat 200 is connected to the middle of the main pipe 100. The middle part of the cleaning seat 200 is a mounting cavity 210 connected to the flow pipe. The end of the cleaning seat 200 away from the main pipe 100 is open. The mounting cavity 210 inside the cleaning seat 200 provides installation space for the subsequent filter cartridge 500. The mounting cavity 210 is connected between the inlet channel 110 and the outlet channel 120.

[0025] The valve cover 300 is connected to the free end of the cleaning seat 200. A drain chamber 310 is provided along the length of the valve cover 300 corresponding to the length of the cleaning seat 200. A drain port 311 is provided on the drain chamber 310. An installation cap 320 is detachably connected to the end of the valve cover 300 away from the cleaning seat 200. The main function of the valve cover 300 is to provide a mounting base for the subsequent rotating shaft 400 and also to provide a base for the drain port 311. A valve structure can be specifically installed on the drain port 311 to control the conduction state, or, when the rotating shaft 400 operates as a motor, the operation of the valve structure can be linked to it.

[0026] The rotating shaft 400 is rotatably mounted on the mounting cap 320. One end of the rotating shaft 400 extends through the drain chamber 310 and into the mounting chamber 210, while the other end protrudes from the valve cover 300. The rotating shaft 400 can be driven manually or by a motor. A sealing filler (such as graphite filler) can be installed at the mating position between the rotating shaft 400 and the mounting cap 320.

[0027] One end of the filter cartridge 500 along its length is connected to the valve cover 300 and communicates with the drain chamber 310. The other end of the filter cartridge 500 along its length is connected to the inlet channel 110, sealing the inlet channel 110. Filter holes are provided on the peripheral wall of the filter cartridge 500, thus forming a filter structure. The specific size of the filter holes is selected according to actual needs. With the above configuration, all fluid entering from the inlet channel 110 must pass through the filter cartridge 500 to enter the outlet channel 120, thus completing the filtration of the fluid.

[0028] The first cleaning element 600 is disposed on the outer periphery of the rotating shaft 400, and the free end of the first cleaning element 600 away from the rotating shaft 400 matches the inner wall of the filter cartridge 500. The first cleaning element 600 can be configured in various ways. For example, it can be plate-shaped to achieve a more efficient scraping action, and in this case, the first cleaning element 600 has a lower impact on fluid flow; or it can be spiral-shaped, in which case the first cleaning element 600 can not only achieve a scraping action but also a conveying action, more efficiently transporting the cleaned material to the drain port 311. In applications where the non-disassembly drain filter handles high-viscosity fluids, the driving force provided by the spiral-shaped first cleaning element 600 is advantageous.

[0029] In summary, the valve cover 300 is connected to the free end of the cleaning seat 200. A drain chamber 310 is provided in the length direction of the valve cover 300 corresponding to the length direction of the cleaning seat 200. A drain port 311 is provided in the drain chamber 310. A mounting cap 320 is detachably connected to the end of the valve cover 300 away from the cleaning seat 200. The rotating shaft 400 is rotatably mounted on the mounting cap 320. One end of the rotating shaft 400 in the length direction passes through the drain chamber 310 and extends into the mounting chamber 210. The other end of the rotating shaft 400 in the length direction protrudes from the valve cover 300. The rotating shaft 400 can be driven manually or electrically. The first cleaning component 600 is disposed on the outer periphery of the rotating shaft 400. The free end of the first cleaning component 600 away from the rotating shaft 400 matches the inner wall of the filter cartridge 500. When the rotating shaft 400 rotates, the first cleaning component 600 completes the cleaning process.

[0030] Reference Figure 1 In one embodiment, the first cleaning member 600 is a brush-like structure and extends along the length direction of the rotating shaft 400, and the extension angle of the first cleaning member 600 in the circumferential direction of the rotating shaft 400 is 10 to 30 degrees.

[0031] In this embodiment, the filter cartridge 500 is cleaned by a brush-shaped first cleaning element 600. Specifically, during the rotation of the rotating shaft 400, the bristles on the first cleaning element 600 clean both the inner wall and the filter holes of the filter cartridge 500. The specific shape and material of the first cleaning element 600 are not limited. The first cleaning element 600 is strip-shaped, allowing it to clean the inner wall of the filter cartridge 500 as the rotating shaft 400 rotates. The larger the angle at which the first cleaning element 600 surrounds the rotating shaft 400 in the circumferential direction, the greater the negative impact it has on the normal flow of fluid within the non-disassembly drain filter. Therefore, the circumferential extension angle is limited.

[0032] Reference Figures 5 to 7 In one embodiment, the rotating shaft 400 is movably connected to the valve cover 300 along its length, and the filter cartridge 500 is conical.

[0033] In this embodiment, the filter cylinder 500 is configured as a conical shape, and the rotating shaft 400 is configured to move along its length. By driving the rotating shaft 400, the distance between the first cleaning component 600 and the inner wall of the filter cylinder 500 can be adjusted. On one hand, during normal use, the movement of the rotating shaft 400 along its length increases the distance between the first cleaning component 600 and the inner wall of the filter cylinder 500, resulting in less interference with fluid movement in the non-disassembly drain filter. On the other hand, during cleaning, the movement of the rotating shaft 400 along its length increases the bonding strength between the first cleaning component 600 and the inner wall of the filter cylinder 500, thus improving the effectiveness of the first cleaning component 600. Specifically, the movement of the rotating shaft 400 along its length can counteract wear on the bristles of the first cleaning component 600. In this embodiment, the diameter of the filter cylinder 500 is not limited to a decreasing direction; it can either decrease or increase in the direction away from the valve cover 300. It should be noted that in other embodiments, the outer periphery of the first cleaning member 600 may be partially conical, which can also achieve certain functions, especially when the outer periphery of the first cleaning member 600 is provided with a bristle structure.

[0034] Reference Figures 2 to 4 In one embodiment, the first cleaning member 600 is plate-shaped and spirally disposed on the outer periphery of the rotating shaft 400. A second cleaning member 700 is disposed on the outer periphery of the rotating shaft 400 at a position corresponding to the drain cavity 310. The second cleaning member 700 is plate-shaped and spirally disposed on the outer periphery of the rotating shaft 400. The spiral directions of the first cleaning member 600 and the second cleaning member 700 are consistent, and the free end of the second cleaning member 700 in the width direction extends toward the inner wall of the drain cavity 310.

[0035] In this embodiment, the rotating shaft 400 rotates, and the first cleaning component 600 rotates accordingly, cleaning the inner wall of the filter cylinder 500; the second cleaning component 700 rotates accordingly, cleaning the inner wall of the drain chamber 310. Since both the first cleaning component 600 and the second cleaning component 700 are spirally wound and their spiral directions are consistent, the rotation of the rotating shaft 400 enables the first cleaning component 600 and the second cleaning component 700 to achieve a driving effect; the cleaned impurities can be discharged through the above-mentioned conveying effect. Normally, during the cleaning process, fluid needs to be maintained through the non-disassembly drain filter to provide driving force. In this embodiment, by setting the first cleaning component 600 and the second cleaning component 700 in a spiral shape, a driving effect is generated, and the material cleaned from the filter cylinder 500 can be conveyed through the above-mentioned driving effect. The conveying force generated above is advantageous for conveying high-viscosity materials. The materials of the first cleaning component 600 and the second cleaning component 700 can be metal or polymer.

[0036] Reference Figures 8 to 10 In one embodiment, the rotating shaft 400 is movably connected to the valve cover 300 along its length, the filter cylinder 500 is conical in shape, and the diameter of the filter cylinder 500 tends to decrease towards the valve cover 300. The outer periphery of the first cleaning component 600 is matched with the inner periphery of the filter cylinder 500.

[0037] In this embodiment, the filter cartridge 500 is configured as a conical shape, and the rotating shaft 400 is configured to move along its length. By driving the rotating shaft 400, the distance between the first cleaning component 600 and the inner wall of the filter cartridge 500 can be adjusted. The advantage of this configuration is that when the distance between the first cleaning component 600 and the filter cartridge 500 is large, it facilitates the flow guidance process of the non-disassembly sewage filter, preventing obstruction of the fluid during operation; it also reduces the risk of clogging the filter holes on the filter cartridge 500. Specifically, the lengthwise movement of the rotating shaft 400 can counteract wear on the first cleaning component 600.

[0038] Reference Figures 2 to 4 In one embodiment, the drain chamber 310 is conical and exhibits an increasing diameter trend in the direction close to the cleaning seat 200. The outer periphery of the second cleaning component 700 is matched with the inner periphery of the drain chamber 310. A first cover plate 800 is provided on the rotating shaft 400. The first cover plate 800 is disposed inside the drain chamber 310 and is used to close the feed inlet.

[0039] In this embodiment, for high-viscosity discharge, the discharge chamber 310 should preferably have an increasing diameter trend towards the cleaning seat 200. Therefore, during operation, the rotating shaft 400 should move outwards. In this case, the conventionally provided second cover plate 900 cannot fulfill its function. Thus, the filter cylinder 500 is aligned with the conical direction of the discharge chamber 310, and the first cover plate 800 is placed inside the discharge chamber 310. When the rotating shaft 400 moves outwards, the first cover plate 800 separates from the feed inlet. Through this arrangement, while satisfying drive optimization, the first cover plate 800 closes the discharge chamber 310 during normal operation; during discharge, the first cover plate 800 separates from the feed inlet. The discharge port 311 is preferably located at the end of the discharge chamber 310 furthest from the cleaning seat 200.

[0040] In one embodiment, the free end of the first cleaning member 600 away from the pivot 400 is connected to bristles.

[0041] In this embodiment, the first cleaning component 600 performs the driving function; then, the bristles on the first cleaning component 600 clean the filter holes of the filter cylinder 500. Specifically, when the rotating shaft 400 rotates, the spiral-shaped first cleaning component 600 rotates to complete the driving action; the bristles can then penetrate the filter holes to complete the cleaning action of the filter holes.

[0042] In one embodiment, the first cleaning component 600 is a mesh plate, and the second cleaning component 700 is a solid plate.

[0043] In this embodiment, perforations are provided on the first cleaning component 600, allowing fluid to pass through. This reduces the resistance of the first cleaning component 600 to the fluid in the non-disassembly drain filter to a certain extent. The second cleaning component 700, being a solid plate structure, prevents material leakage, and thus generates a greater driving force.

[0044] Reference Figures 8 to 10 In one embodiment, a second cover plate 900 is provided on the rotating shaft 400. The second cover plate 900 is disposed in the mounting cavity 210 and is used to close the feed port.

[0045] During operation, when the rotating shaft 400 extends inward, the second cover plate 900 disengages from the inlet of the drain chamber 310. At this time, the mounting cavity 210 and the drain chamber 310 are connected, enabling the cleaning process. When the rotating shaft 400 extends outward, the second cover plate 900 closes the drain chamber 310, preventing it from being affected by external fluids and maintaining its internal cleanliness. Furthermore, this design eliminates the need for a valve structure on the drain outlet 311, reducing overall costs to some extent.

[0046] In one embodiment, a drive motor for driving the rotating shaft 400 to rotate is also included, the drive motor being disposed at the other end of the rotating shaft 400 along its length.

[0047] In this embodiment, when the drive motor rotates, the rotation of the shaft 400 drives the rotation of the first cleaning component 600, thereby completing the cleaning process. Of course, due to the characteristics of the motor, a corresponding reduction mechanism needs to be set to achieve operation with lower speed and higher torque.

[0048] In summary, the present invention provides a non-disassembly-resistant sewage filter, wherein a valve cover 300 is connected to the free end of a cleaning seat 200, a sewage discharge chamber 310 is provided in the length direction of the valve cover 300 corresponding to the length direction of the cleaning seat 200, a sewage discharge port 311 is provided in the sewage discharge chamber 310, an installation cap 320 is detachably connected to the end of the valve cover 300 away from the cleaning seat 200, a rotating shaft 400 is rotatably mounted on the installation cap 320, one end of the rotating shaft 400 in the length direction passes through the sewage discharge chamber 310 and extends into the installation chamber 210, and the other end of the rotating shaft 400 in the length direction protrudes from the valve cover 300, and the rotating shaft 400 can be driven manually or electrically; a first cleaning component 600 is disposed on the outer periphery of the rotating shaft 400, and the free end of the first cleaning component 600 away from the rotating shaft 400 matches the inner wall of the filter cartridge 500; when the rotating shaft 400 rotates, the first cleaning component 600 completes the cleaning process.

[0049] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A non-disassembly-free sewage filter, characterized in that, include: The main pipeline has a flow channel in the middle, which includes an inlet channel and an outlet channel. A cleaning seat is connected to the middle of the main pipe. The middle of the cleaning seat is an installation cavity connected to the flow pipe, and the end of the cleaning seat away from the main pipe is open. A valve cover is connected to the free end of the cleaning seat. A drain chamber is provided on the valve cover along the length direction of the cleaning seat. A drain port is provided on the drain chamber. An installation cap is detachably connected to the end of the valve cover away from the cleaning seat. The end of the drain chamber along the length direction closer to the cleaning seat is the feed port. A rotating shaft is rotatably mounted on the mounting cap. One end of the rotating shaft in the longitudinal direction passes through the sewage discharge chamber and extends into the mounting chamber, while the other end of the rotating shaft in the longitudinal direction protrudes from the valve cover. The filter cartridge has one end connected to the valve cover along its length and communicating with the drain chamber, and the other end connected to the inlet channel along its length and sealing the inlet channel. A first cleaning component is disposed on the outer periphery of the rotating shaft, and the free end of the first cleaning component away from the rotating shaft matches the inner wall of the filter cylinder; The first cleaning component is plate-shaped and spirally disposed on the outer periphery of the rotating shaft. A second cleaning component is disposed on the outer periphery of the rotating shaft at a position corresponding to the sewage discharge chamber. The second cleaning component is plate-shaped and spirally disposed on the outer periphery of the rotating shaft. The spiral directions of the first and second cleaning components are the same, and the free end of the second cleaning component in the width direction extends toward the inner wall of the sewage discharge chamber. The rotating shaft is movably connected to the valve cover along its length. The filter cylinder is conical in shape, and the diameter of the filter cylinder tends to decrease towards the valve cover. The outer periphery of the first cleaning component matches the inner periphery of the filter cylinder. The drain chamber is cone-shaped and its diameter increases in the direction close to the cleaning seat. The outer periphery of the second cleaning component matches the inner periphery of the drain chamber. A first cover plate is provided on the rotating shaft. The first cover plate is located inside the drain chamber and is used to close the feed inlet.

2. The non-disassembly-free sewage filter according to claim 1, characterized in that, The first cleaning component has bristles attached to its free end away from the rotating shaft.

3. The non-disassembly-free sewage filter according to claim 1, characterized in that, The first cleaning component is a mesh plate, and the second cleaning component is a solid plate.

4. The non-disassembly-free sewage filter according to any one of claims 1 to 3, characterized in that, It also includes a drive motor for driving the rotation of the shaft, the drive motor being disposed at the other end of the shaft along its length.

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