A multi-stage filtering device with filter screen convenient to replace

Abstract

The present disclosure relates to the technical field of filtering devices, and one embodiment of the present disclosure provides a multi-stage filtering device facilitating replacement of a filter screen, comprising a double-channel multi-stage filtering shell; in the present disclosure, a handle, a rotating rod, a hollow rod, a first sealing clamp plate and a limiting plate are arranged; the handle is rotated, the rotating rod is pressed against the hollow rod, the hollow rod drives the first sealing clamp plate to move horizontally to the left under the limiting action of the limiting plate, at this time, the first sealing clamp plate is separated from the outer surface of the filter screen, thereby releasing the fixing effect on the filter screen; at this time, an operator can directly take out the filter screen for replacement; after replacement is completed, the handle is rotated again, the first sealing clamp plate restores the fixing effect on the filter screen, and rotation of the handle drives the chuck to rotate synchronously; when the fixing is restored again, the elastic force of the stainless steel spring drives the clamping block to quickly reset; through the above technical solution, the technical problem of inconvenient disassembly of the filter screen in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of filtration device technology, and more specifically, to a multi-stage filtration device that facilitates filter replacement. Background Technology

[0002] A multi-stage filtration device is a comprehensive purification system composed of filtration units of different precision connected in series. It intercepts large particulate impurities through coarse filtration, captures medium-sized pollutants through medium filtration, and removes fine particulate matter and even microorganisms through fine filtration. It can also integrate special treatment units such as adsorption or softening as needed, thereby achieving progressive treatment from preliminary pretreatment to deep purification, and ultimately improving the purity of the fluid efficiently.

[0003] In existing technologies, multi-stage filtration devices are often used to remove particulate impurities of different sizes from the air. However, while these devices provide basic filtration, their filters are typically installed using bolts and nuts. This method requires operators to use specific tools for installation and removal, and the process is time-consuming and inefficient. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a multi-stage filtration device that facilitates filter replacement, solving the technical problem of inconvenient filter disassembly in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a multi-stage filtration device for easy filter replacement, including a dual-channel multi-stage filtration housing. Handles are movably sleeved on both the front and rear sides of the dual-channel multi-stage filtration housing. The other end of each handle penetrates the dual-channel multi-stage filtration housing and extends into its interior, where a rotating rod is fixedly sleeved. A hollow rod is movably connected to the outer surface of the rotating rod. A first sealing plate is fixedly connected to the outer side of the hollow rod. The outer surface of the first sealing plate is movably connected to the inner surface of the dual-channel multi-stage filtration housing. Limiting plates are fixedly connected to the top and bottom of the inner cavity of the dual-channel multi-stage filtration housing, and the outer surface of the limiting plate is movably sleeved to the inner surface of the first sealing plate.

[0006] As a preferred technical solution of this disclosure, a filter screen is movably connected to the outer side of the first sealing clamp, and a second sealing clamp is movably connected to the outer side of the filter screen. The second sealing clamp is fixedly installed on the inner surface of the dual-channel multi-stage filter housing.

[0007] As a preferred technical solution of this disclosure, a partition is fixedly installed on the inner surface of the dual-channel multi-stage filter housing, and the outer surface of the partition is movably connected to the outer surface of the filter screen and the first sealing clamp.

[0008] As a preferred technical solution of this disclosure, the front and rear sides of the outer surface of the dual-channel multi-stage filter housing are fixedly connected with fixing blocks, and the inner surface of the fixing blocks is movably connected with a locking block.

[0009] As a preferred embodiment of this disclosure, a stainless steel spring is fixedly connected to the bottom of the card block, and the bottom of the stainless steel spring is fixedly connected to the inner surface of the fixed block.

[0010] As a preferred embodiment of this disclosure, the outer surface of the card block is movably connected to a chuck, and the inner surface of the chuck is fixedly sleeved with the outer surface of the handle.

[0011] As a preferred technical solution of this disclosure, a fixing plate is fixedly connected to the top of the dual-channel multi-stage filter housing, a motor is fixedly connected to the back of the fixing plate, and a fine-thread screw is fixedly sleeved at the other end of the motor output shaft.

[0012] As a preferred technical solution of this disclosure, the other end of the fine-tooth screw passes through the fixing plate and extends to the inner surface of the fixing plate and is threaded with a slider, the bottom of the slider being movably connected to the top of the dual-channel multi-stage filter housing.

[0013] As a preferred embodiment of this disclosure, a sleeve rod is fixedly connected to the left side of the slider, and an eccentric rod is movably connected to the inner surface of the sleeve rod.

[0014] As a preferred technical solution of this disclosure, a round rod is fixedly sleeved on the inner surface of the eccentric rod, the bottom end of the round rod penetrates through the dual-channel multi-stage filter housing and extends to the bottom of the dual-channel multi-stage filter housing and is fixedly sleeved with a sealing plate, and the outer surface of the sealing plate is movably connected to the inner surface of the dual-channel multi-stage filter housing.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. This disclosure incorporates a handle, a rotating rod, a hollow rod, a first sealing clamp, and a limiting plate. Rotating the handle causes the rotating rod to press against the hollow rod, which in turn causes the first sealing clamp to move horizontally to the left under the limiting action of the limiting plate. At this point, the first sealing clamp detaches from the outer surface of the filter screen, thus releasing the filter screen from its fixation. The operator can then directly remove the filter screen for replacement. After replacement, the handle is rotated again to restore the first sealing clamp's fixation to the filter screen. The rotation of the handle also causes the chuck to rotate synchronously. When the filter screen is restored to its original position, the elastic force of the stainless steel spring causes the clamp to quickly reset, securing the chuck and handle. This prevents accidental loosening during subsequent filtration, facilitating filter screen replacement, improving the operator's efficiency in replacing the filter screen, and reducing the operator's workload.

[0016] 2. This disclosure incorporates a slider, a sleeve rod, an eccentric rod, a round rod, and a sealing plate. When the motor is started, the fine-pitch screw rotates. The slider then moves horizontally backward along the top of the dual-channel multi-stage filter housing, causing the sleeve rod to move synchronously. This movement of the sleeve rod compresses the eccentric rod, causing it to drive the round rod and the sealing plate to rotate synchronously around the central axis of the round rod. When the slider reaches its travel limit, the sealing plate rotates to close the rear filter channel of the dual-channel multi-stage filter housing while simultaneously opening the front filter channel. This enables rapid switching of filter channels, preventing downtime from affecting the overall filtration efficiency of the device when replacing the filter screen in the rear filter channel and reducing downtime. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure; Figure 2 for Figure 1 A cross-sectional view of the dual-channel multi-stage filter housing in the embodiment; Figure 3 for Figure 2 A cross-sectional view of the handle in the embodiment; Figure 4 for Figure 2 A cross-sectional view of the partition in the embodiment; Figure 5 for Figure 2 A cross-sectional view of the enclosure plate in the embodiment.

[0019] In the diagram: 1. Dual-channel multi-stage filter housing; 2. Handle; 3. Rotating rod; 4. Hollow rod; 5. No. 1 sealing clamp; 6. Limiting plate; 7. Filter screen; 8. No. 2 sealing clamp; 9. Fixing block; 10. Clamping block; 11. Stainless steel spring; 12. Chuck; 13. Partition plate; 14. Fixing plate; 15. Motor; 16. Fine-thread screw; 17. Slider; 18. Sleeve rod; 19. Eccentric rod; 20. Round rod; 21. Sealing plate. Detailed Implementation The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0022] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figures 1-5As shown, this is a multi-stage filtration device for easy filter replacement according to an embodiment of the present disclosure. It includes a dual-channel multi-stage filtration housing 1. Handles 2 are movably sleeved on both the front and rear sides of the dual-channel multi-stage filtration housing 1. The other end of the handle 2 passes through the dual-channel multi-stage filtration housing 1 and extends into the interior of the dual-channel multi-stage filtration housing 1, and is fixedly sleeved with a rotating rod 3. A hollow rod 4 is movably connected to the outer surface of the rotating rod 3. A first sealing plate 5 is fixedly connected to the outer side of the hollow rod 4. The outer surface of the first sealing plate 5 is movably connected to the inner surface of the dual-channel multi-stage filtration housing 1. Limiting plates 6 are fixedly connected to the top and bottom of the inner cavity of the dual-channel multi-stage filtration housing 1. The outer surface of the limiting plate 6 is movably sleeved with the inner surface of the first sealing plate 5.

[0026] The outer surface of the limiting plate 6 is smooth. This design makes the sliding of the first sealing clamp 5 on the outer surface of the limiting plate 6 smoother and reduces the friction between the first sealing clamp 5 and the limiting plate 6, effectively improving the service life of the first sealing clamp 5 and the limiting plate 6.

[0027] In some examples, a filter screen 7 is movably connected to the outer side of the first sealing clamp 5, and a second sealing clamp 8 is movably connected to the outer side of the filter screen 7. The second sealing clamp 8 is fixedly installed on the inner surface of the dual-channel multi-stage filter housing 1.

[0028] After the first sealing clamp 5 slides and comes into contact with the filter screen 7, it will work with the second sealing clamp 8 to achieve a clamping and fixing effect on the periphery of the filter screen 7.

[0029] In some examples, a partition 13 is fixedly installed on the inner surface of the dual-channel multi-stage filter housing 1, and the outer surface of the partition 13 is movably connected to the outer surface of the filter screen 7 and the first sealing clamp 5.

[0030] The design of the partition 13 enables the separation of the two filtration channels at the front and rear of the inner cavity of the dual-channel multi-stage filter housing 1.

[0031] In some examples, fixing blocks 9 are fixedly connected to both the front and rear sides of the outer surface of the dual-channel multi-stage filter housing 1, and locking blocks 10 are movably connected to the inner surface of the fixing blocks 9.

[0032] The outer surface of the locking block 10 is smooth, which makes it slide more smoothly on the inner surface of the fixing block 9.

[0033] In some examples, a stainless steel spring 11 is fixedly connected to the bottom of the card block 10, and the bottom of the stainless steel spring 11 is fixedly connected to the inner surface of the fixing block 9.

[0034] Due to the elastic force of the stainless steel spring 11, the locking block 10 has a good reset effect during subsequent movements.

[0035] In some examples, the outer surface of the chuck 10 is movably connected to the chuck 12, and the inner surface of the chuck 12 is fixedly sleeved with the outer surface of the handle 2.

[0036] When the handle 2 is rotated, the chuck 12 will rotate synchronously and the chuck 12 will press the locking block 10. When the locking block 10 is separated from the outer surface of the chuck 12, the fixing effect on the chuck 12 will be released.

[0037] In some examples, a fixing plate 14 is fixedly connected to the top of the dual-channel multi-stage filter housing 1, a motor 15 is fixedly connected to the back of the fixing plate 14, and a fine-toothed screw 16 is fixedly sleeved at the other end of the output shaft of the motor 15.

[0038] The fine-pitch screw 16 has a self-locking function, so that the fine-pitch screw 16 will not rotate unexpectedly after the motor 15 stops running.

[0039] In some examples, the other end of the fine-toothed screw 16 passes through the fixing plate 14 and extends to the inner surface of the fixing plate 14 and is threadedly fitted with a slider 17, the bottom of which is movably connected to the top of the dual-channel multi-stage filter housing 1.

[0040] When the fine-tooth screw 16 rotates, it will cause the slider 17 to slide forward along the top of the dual-channel multi-stage filter housing 1.

[0041] In some examples, a sleeve 18 is fixedly connected to the left side of the slider 17, and an eccentric rod 19 is movably connected to the inner surface of the sleeve 18.

[0042] When the sleeve rod 18 moves forward, it will press the eccentric rod 19, at which point the eccentric rod 19 will rotate around the round rod 20 as the axis.

[0043] In some examples, a round rod 20 is fixedly sleeved on the inner surface of the eccentric rod 19. The bottom end of the round rod 20 penetrates through the dual-channel multi-stage filter housing 1 and extends to the bottom of the dual-channel multi-stage filter housing 1 and is fixedly sleeved with a sealing plate 21. The outer surface of the sealing plate 21 is movably connected to the inner surface of the dual-channel multi-stage filter housing 1.

[0044] The rotation of the eccentric rod 19 will cause the sealing plate 21 to swing synchronously and eventually rotate upward, closing the filter channel behind the dual-channel multi-stage filter housing 1 while opening the filter channel in front of the dual-channel multi-stage filter housing 1.

[0045] The working principle and usage process of this disclosure are as follows: When filter screen 7 becomes damaged and needs replacement after long-term use, rotating handle 2 causes rotating rod 3 to press hollow rod 4. Hollow rod 4 then causes sealing clamp 5 to move horizontally to the left under the limiting action of limiting plate 6. At this time, sealing clamp 5 will detach from the outer surface of filter screen 7, thus releasing the fixing effect on filter screen 7. The operator can then directly remove filter screen 7 for replacement. After replacement, rotating handle 2 again will restore the fixing effect of sealing clamp 5 on filter screen 7. The rotation of handle 2 will also cause chuck 12 to rotate synchronously. When the fixing is restored, the elastic force of stainless steel spring 11 will cause chuck 10 to quickly reset, thus fixing chuck 12 and handle 2. This prevents accidental loosening during subsequent filtration, facilitates filter screen 7 replacement, improves the efficiency of filter screen 7 replacement, and reduces the labor intensity of operators.

[0046] When the filter 7 in the front channel is being maintained, to avoid downtime and affecting the overall filtration efficiency of the device, the motor 15 is started, causing the fine-tooth screw 16 to rotate. At this time, the slider 17 will move horizontally backward along the top of the dual-channel multi-stage filter housing 1, and drive the sleeve rod 18 to move synchronously. The movement of the sleeve rod 18 will squeeze the eccentric rod 19, causing the eccentric rod 19 to drive the round rod 20 and the sealing plate 21 to rotate synchronously around the central axis of the round rod 20. When the slider 17 moves to the limit of its stroke, the sealing plate 21 will rotate to close the filtration channel at the rear of the dual-channel multi-stage filter housing 1 while opening the filtration channel at the front of the dual-channel multi-stage filter housing 1, realizing a rapid switching of filtration channels. This avoids downtime affecting the overall filtration efficiency of the device when replacing the filter 7 in the rear filtration channel, and reduces downtime.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A multi-stage filtration device with easy filter replacement, comprising a dual-channel multi-stage filtration housing (1), characterized in that: The front and rear sides of the dual-channel multi-stage filter housing (1) are movably fitted with handles (2). The other end of the handle (2) passes through the dual-channel multi-stage filter housing (1) and extends into the interior of the dual-channel multi-stage filter housing (1) and is fixedly fitted with a rotating rod (3). The outer surface of the rotating rod (3) is movably connected with a hollow rod (4). The outer side of the hollow rod (4) is fixedly connected with a first sealing clamp (5). The outer surface of the first sealing clamp (5) is movably connected to the inner surface of the dual-channel multi-stage filter housing (1). The top and bottom of the inner cavity of the dual-channel multi-stage filter housing (1) are fixedly connected with limit plates (6). The outer surface of the limit plate (6) is movably fitted with the inner surface of the first sealing clamp (5).

2. The multi-stage filtration device for easy filter replacement according to claim 1, characterized in that: A filter screen (7) is movably connected to the outer side of the first sealing clamp (5), and a second sealing clamp (8) is movably connected to the outer side of the filter screen (7). The second sealing clamp (8) is fixedly installed on the inner surface of the dual-channel multi-stage filter housing (1).

3. The multi-stage filtration device for easy filter replacement according to claim 1, characterized in that: The inner surface of the dual-channel multi-stage filter housing (1) is fixedly installed with a partition (13), and the outer surface of the partition (13) is movably connected to the outer surface of the filter screen (7) and the first sealing clamp (5).

4. The multi-stage filtration device for easy filter replacement according to claim 1, characterized in that: The front and rear sides of the outer surface of the dual-channel multi-stage filter housing (1) are fixedly connected to fixing blocks (9), and the inner surface of the fixing blocks (9) is movably connected to a locking block (10).

5. A multi-stage filtration device for easy filter replacement according to claim 4, characterized in that: A stainless steel spring (11) is fixedly connected to the bottom of the card block (10), and the bottom of the stainless steel spring (11) is fixedly connected to the inner surface of the fixing block (9).

6. A multi-stage filtration device for easy filter replacement according to claim 4, characterized in that: The outer surface of the card block (10) is movably connected to a chuck (12), and the inner surface of the chuck (12) is fixedly sleeved with the outer surface of the handle (2).

7. A multi-stage filtration device for easy filter replacement according to claim 1, characterized in that: The top of the dual-channel multi-stage filter housing (1) is fixedly connected to a fixing plate (14), and the back of the fixing plate (14) is fixedly connected to a motor (15). The other end of the output shaft of the motor (15) is fixedly sleeved with a fine-tooth screw (16).

8. A multi-stage filtration device for easy filter replacement according to claim 7, characterized in that: The other end of the fine-tooth screw (16) passes through the fixing plate (14) and extends to the inner surface of the fixing plate (14) and is threaded with a slider (17). The bottom of the slider (17) is movably connected to the top of the dual-channel multi-stage filter housing (1).

9. A multi-stage filtration device for easy filter replacement according to claim 8, characterized in that: A sleeve rod (18) is fixedly connected to the left side of the slider (17), and an eccentric rod (19) is movably connected to the inner surface of the sleeve rod (18).

10. A multi-stage filtration device for easy filter replacement according to claim 9, characterized in that: A round rod (20) is fixedly sleeved on the inner surface of the eccentric rod (19). The bottom end of the round rod (20) penetrates the dual-channel multi-stage filter housing (1) and extends to the bottom of the dual-channel multi-stage filter housing (1) and is fixedly sleeved with a sealing plate (21). The outer surface of the sealing plate (21) is movably connected to the inner surface of the dual-channel multi-stage filter housing (1).

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