A cyclone type three-stage filtering structure
By designing a detachable outer casing structure and cooperating with screws, clamps, and connecting plates, the problem of inconvenient filter element cleaning and replacement in the existing cyclone three-stage filtration structure is solved, achieving convenient disassembly and installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN MINGTAI SHIP TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-12
AI Technical Summary
The filter cartridges of the existing cyclone three-stage filtration structure accumulate dust and particulate matter after long-term use, making cleaning and replacement inconvenient.
A detachable outer casing structure was designed, which enables convenient disassembly and installation of the filter element through the cooperation of screws, clamping plates and connecting plates, and enables convenient replacement of the filter element by the cooperation of threaded blocks and clamping plates.
It enables convenient disassembly and installation of filter cartridges, improves replacement efficiency, and reduces operational difficulty.
Smart Images

Figure CN224345615U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration structure technology, specifically a cyclone-type three-stage filtration structure. Background Technology
[0002] The generator set filtration structure is a key component to ensure the efficient and stable operation of the unit. It is mainly used to filter impurities in air, fuel, lubricating oil and cooling medium to prevent contaminants from damaging internal components. The cyclone three-stage filtration structure is mainly used to filter impurities in the air.
[0003] The existing cyclone three-stage filtration structure has the following problems:
[0004] The filter cartridges of the existing cyclone three-stage filtration structure will accumulate a lot of dust and particulate matter after long-term use, so they need to be cleaned or replaced regularly. However, the existing filtration structure is fixed inside the outer casing, making cleaning and replacement of the filter cartridges inconvenient. Utility Model Content
[0005] The purpose of this invention is to provide a cyclone-type three-stage filtration structure to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cyclone-type three-stage filtration structure, comprising an outer casing, a cyclone fan mounted on the outer casing, a filter element disposed within the outer casing, the outer casing being separable into two parts, namely a first outer casing and a second outer casing, the outer casing being provided with a separation structure, the separation structure including an installation port, the second outer casing being provided with an installation port, a mating plate disposed on the surface of the filter element, a fixing plate disposed on the surface of the second outer casing, a fixing block disposed on the surface of the first outer casing, a support plate disposed on the fixing block, a slider disposed on the support plate, the slider being slidably connected to the fixing plate, a connecting plate connected to the second outer casing, a push rod connected to the connecting plate, the push rod being connected to the first outer casing.
[0007] Preferably, the second outer casing is provided with a fixing seat, a screw is connected to the fixing seat, a threaded block is connected to the screw, a retaining plate is provided on the threaded block, and a retaining seat is provided on the connecting plate.
[0008] Preferably, the second outer casing is provided with connecting plates at both the top and bottom ends, and the two connecting plates have the same structure.
[0009] Preferably, the end of the connecting plate that connects to the push rod is curved upwards.
[0010] Preferably, the mounting port is provided with a connecting seat, the mating plate is provided with a connecting port, the connecting port is provided with a limiting head, and the connecting seat is provided with an elastic retainer.
[0011] Preferably, when the threaded block moves to fit against the inner side of the right end of the fixed seat, the clamping plate retracts into the fixed seat.
[0012] Preferably, when the card plate is pressed against the card holder surface, the connecting plate is pressed against the surface of the second outer casing.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] Rotating the screw retracts the clamping plate into the fixed seat, releasing the pressure on the clamping seat. Rotating the connecting plate counterclockwise drives the push rod, separating the first outer casing from the second outer casing. Then, the operator can separate the docking plate from the installation port, completing the disassembly of the filter element, achieving the beneficial effect of convenient disassembly. During installation, the docking plate is aligned with the installation port, fixing the filter element on the second outer casing. Then, rotating the connecting plate clockwise drives the push rod to the right. At this time, the first and second outer casings close, and the clamping plate is locked onto the clamping seat, realizing the installation of the connecting plate, achieving the beneficial effect of convenient installation and replacement. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a front view structural diagram of the present utility model;
[0017] Figure 3 This is a front view cross-sectional structural diagram of the connecting plate of this utility model;
[0018] Figure 4 This is a schematic diagram of the separate structure of the first outer box and the second outer box of this utility model;
[0019] Figure 5 This is a front view cross-sectional structural diagram of the fixing plate of this utility model;
[0020] Figure 6 This is a partial enlarged view of region A of this utility model.
[0021] In the diagram: Outer casing-1, First outer casing-11, Second outer casing-12, Cyclone fan-2, Filter element-3, Separation structure-4, Mounting port-41, Connecting plate-42, Fixing plate-43, Fixing block-44, Support plate-45, Slider-46, Connecting plate-47, Push rod-48, Fixing seat-49, Screw-410, Threaded block-411, Clamping plate-412, Clamping seat-413, Connecting seat-414, Connecting port-415, Limiting head-416, Elastic clamp-417. Detailed Implementation
[0022] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0023] Please see Figure 1 and Figure 2 This utility model provides a cyclone-type three-stage filtration structure, including an outer box 1, which can be separated into two parts, namely a first outer box 11 and a second outer box 12. The first outer box 1 is the air inlet. A cyclone fan 2 is installed on the first outer box 11. A filter element 3 is installed between the first outer box 11 and the second outer box 12. A separation structure 4 is provided on the outer box 1.
[0024] Specifically, the cyclone fan 2 operates, drawing outside air into the outer casing 1, where it moves and passes through the filter element 3. The filter element 3 is a three-stage filter element, consisting of a pre-filter, a medium-efficiency filter, and a high-efficiency filter. The pre-filter is used to filter dust particles with a diameter of 5 micrometers or larger, protecting subsequent filter layers from clogging. The medium-efficiency filter filters particles with a diameter between 1 and 5 micrometers, and the high-efficiency filter filters tiny particles with a diameter of 0.3 micrometers or larger.
[0025] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 This utility model provides a cyclone-type three-stage filtration structure. The separation structure 4 includes an installation port 41. The first outer box 11 and the second outer box 12 are both provided with installation ports 41. The surface of the filter element 3 is provided with a docking plate 42, which can be connected to the installation port 41 to realize that the filter element 3 can be installed between the first outer box 11 and the second outer box 12.
[0026] A fixing plate 43 is installed on the lower end face of the second outer box 12, and a fixing block 44 is installed on the lower end face of the first outer box 11. A support plate 45 is fixed on the fixing block 44, and a slider 46 is provided on the support plate 45. The slider 46 is slidably connected to the fixing plate 43.
[0027] A connecting plate 47 is rotatably connected to the second outer box 12, and a push rod 48 is rotatably connected to the connecting plate 47. The push rod 48 is rotatably connected to the first outer box 11. Both the upper and lower ends of the second outer box 12 are provided with connecting plates 47. The two connecting plates 47 have the same structure, which can better press the first outer box 11 and the second outer box 12 to close. The end of the connecting plate 47 connected to the push rod 48 is tilted upward to facilitate the operator to rotate the connecting plate 47.
[0028] A fixing seat 49 is fixed on the second outer casing 12. A screw 410 is rotatably connected to the fixing seat 49. A threaded block 411 is threadedly connected to the screw 410. The threaded block 411 abuts against the inner side of the fixing seat 49, so that the threaded block 411 will not rotate with the screw 410. A retaining plate 412 is fixed on the threaded block 411. A retaining seat 413 is provided on the connecting plate 47. When the threaded block 411 moves to fit against the inner side of the right end of the fixing seat 49, the retaining plate 412 retracts into the fixing seat 49. When the retaining plate 412 presses against the surface of the retaining seat 413, the connecting plate 47 is pressed against the surface of the second outer casing 12, which has better guarantee of the firmness when closed.
[0029] The mounting port 41 is provided with a connecting seat 414, the docking plate 42 is provided with a connecting port 415, the connecting port 415 is provided with a limiting head 416, and the connecting seat 414 is provided with an elastic clip 417. When the docking plate 42 is inserted into the mounting port 41, the connecting seat 414 and the connecting port 415 are aligned, and the limiting head 416 will be locked on the elastic clip 417 to achieve pre-fixation after the docking plate 42 and the mounting port 41 are aligned.
[0030] Specifically, rotating the screw 410 causes the threaded block 411 to move to the right, thereby causing the clamping plate 412 to retract into the fixed seat 49, releasing the pressure on the clamping seat 413. Then, rotating the connecting plate 47 causes the push rod 48 to move to the left, thereby pushing the first outer box 11 to separate from the second outer box 12. During the separation process, the first outer box 11 will drive the fixed block 44 and the support plate 45 to move. At the same time, the slider 46 slides along the inner side of the fixed plate 43, which can support the first outer box 11 and prevent it from tilting or collapsing. Next, the staff can separate the docking plate 42 from the installation port 41 to disassemble the filter element 3, thus achieving the beneficial effect of convenient disassembly. During installation, the docking plate 42 is docked with the installation port 41, so that the filter element 3 is fixed on the second outer box 12. Then, the connecting plate 47 is rotated clockwise to drive the push rod 48 to move to the right. At this time, the first outer box 11 and the second outer box 12 are closed and are locked on the card seat 413 by the card plate 412, thus realizing the installation of the connecting plate 47, achieving the beneficial effect of convenient installation and convenient replacement.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cyclone-type three-stage filtration structure, comprising an outer casing (1), a cyclone fan (2) mounted on the outer casing (1), and a filter element (3) disposed within the outer casing (1), characterized in that: It also includes a separation structure (4). The outer box (1) can be separated into two parts, namely a first outer box (11) and a second outer box (12). The outer box (1) is provided with a separation structure (4). The separation structure (4) includes an installation port (41). The second outer box (12) is provided with an installation port (41). The filter element (3) is provided with a docking plate (42). The second outer box (12) is provided with a fixing plate (43). The first outer box (11) is provided with a fixing block (44). The fixing block (44) is provided with a support plate (45). The support plate (45) is provided with a slider (46). The slider (46) is slidably connected to the fixing plate (43). The second outer box (12) is connected with a connecting plate (47). The connecting plate (47) is connected with a push rod (48). The push rod (48) is connected to the first outer box (11).
2. The cyclone-type three-stage filtration structure according to claim 1, characterized in that: The second outer casing (12) is provided with a fixed seat (49), a screw (410) is connected to the fixed seat (49), a threaded block (411) is connected to the screw (410), a card plate (412) is provided on the threaded block (411), and a card seat (413) is provided on the connecting plate (47).
3. The cyclone-type three-stage filtration structure according to claim 1, characterized in that: The second outer box (12) is provided with connecting plates (47) at both the upper and lower ends, and the two connecting plates (47) have the same structure.
4. The cyclone-type three-stage filtration structure according to claim 1, characterized in that: The end of the connecting plate (47) that is connected to the push rod (48) is tilted upward.
5. The cyclone-type three-stage filtration structure according to claim 1, characterized in that: The mounting port (41) is provided with a connecting seat (414), the docking plate (42) is provided with a connecting port (415), the connecting port (415) is provided with a limiting head (416), and the connecting seat (414) is provided with an elastic clip (417).
6. The cyclone-type three-stage filtration structure according to claim 2, characterized in that: When the threaded block (411) moves to fit against the inner side of the right end of the fixed seat (49), the clamping plate (412) retracts into the fixed seat (49).
7. The cyclone-type three-stage filtration structure according to claim 2, characterized in that: When the card plate (412) is pressed against the surface of the card holder (413), the connecting plate (47) is pressed against the surface of the second outer casing (12).