Multi-layer filter screen convenient to disassemble

Abstract

The utility model relates to the technical field of liquid-based cell extraction, in particular to a multilayer filter screen convenient to disassemble, which comprises a filter and a connecting plate, the outer wall of the filter is fixedly connected with the outer wall of the connecting plate, the outer wall of the connecting plate is fixedly connected with the outer wall of a box body, and the filter is connected with a liquid discharge pipe. A handle in the dismounting device drives a threaded column to rotate, the threaded column drives a vertical plate to move, the vertical plate descends, the vertical plate drives a sliding groove to move, and due to the fact that a sliding column slides in the sliding groove, the sliding groove drives the sliding column to move, the sliding column drives a clamping column to move, the clamping column slides in a box body, and the clamping column sequentially leaves the interior of a second mounting cylinder and the interior of a first mounting cylinder of the filter; the first filter screen is driven to move by pulling down the first mounting cylinder, the second filter screen is driven to move by pulling the second mounting cylinder, and the two filter screens are detached through the detaching device, so that the detaching effect of the multi-layer filter screen for liquid-based cell extraction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-based cell extraction, in particular to a multi-layer filter screen which is easy to disassemble. Background Art

[0002] Liquid-based cytology is a part of exfoliative cytology. It is a process of placing exfoliative cytology specimens that are difficult to handle by traditional methods into an intermediate liquid to remove interfering components such as blood and mucus that affect diagnosis, so as to improve the diagnosis rate. During liquid-based cell extraction, multiple layers of filters are required for filtration.

[0003] For example, a detachable multi-layer cell filter with the authorization announcement number CN216663051U includes a connecting ring, a connecting plate, a locator and an emitter, and three groups of connecting plates are installed at the bottom of the connecting ring. Although the above document can realize the rapid disassembly of the filter plate by installing a locator and a mounting groove, the mounting groove is used to place the filter device, and the cells can be screened in multiple layers; however, when in use, when the multi-layer filter net for liquid-based cell extraction is disassembled, the staff presses the pressure rod to deform the spring to disassemble the filter net. Since the spring has been used for a long time, the fatigue resistance of the spring is weakened, and the elasticity of the spring is also weakened at this time. The elastic force of the spring is not enough to drive the limit block to move normally, and the filter net cannot be disassembled, thereby reducing the disassembly effect of the multi-layer filter net for liquid-based cell extraction; at the same time, when the multi-layer filter net for liquid-based cell extraction is filtering the liquid-based cells, the staff directly pours the liquid-based cells onto the filter net for filtering, resulting in the accumulation of cells at one position on the filter net, and the cells cannot be fully filtered and extracted, thereby reducing the efficiency of liquid-based cell extraction. Utility Model Content

[0004] The utility model aims to solve the problem of reducing the disassembly effect of the multi-layer filter used for liquid-based cell extraction and reducing the efficiency of liquid-based cell extraction, and proposes a multi-layer filter that is easy to disassemble.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-layer filter screen that is easy to disassemble is designed, including a filter and a connecting plate, the outer wall of the filter is fixedly connected to the outer wall of the connecting plate, the outer wall of the connecting plate is fixedly connected to the outer wall of the box, the filter is connected to a drain pipe, the filter is fitted with a second mounting cylinder, a second filter screen is installed inside the second mounting cylinder, the second mounting cylinder is fitted with a first mounting cylinder, a first filter screen is installed inside the first mounting cylinder, a disassembly device is provided inside the box, and a diversion device is provided inside the filter.

[0007] Preferably, the disassembly device includes a handle and a threaded column, the handle is fixed to the outer wall of the threaded column, the threaded column is threadedly connected to the box body, the threaded column is rotatably connected to the vertical plate through a bearing, a sliding groove is opened inside the vertical plate, and the sliding groove is slidably engaged with the sliding column.

[0008] Preferably, a clamping rod is fixedly connected to the outer wall of the sliding column, and the clamping rod is slidably connected to the box body.

[0009] Preferably, the clamping rod cooperates with the first mounting cylinder, the second mounting cylinder and the filter respectively.

[0010] Preferably, the flow dividing device comprises a bolt and a curved plate, the bolt is threadedly connected to the curved plate, the outer wall of the curved plate is fixedly connected to the outer wall of the circular plate, and the circular plate is fitted with the first mounting cylinder.

[0011] Preferably, a through hole is processed inside the circular plate, and the bolt is threadedly connected to the first mounting cylinder.

[0012] The utility model proposes a multi-layer filter screen which is easy to disassemble, and the beneficial effect is that: the handle in the disassembly device drives the threaded column to rotate, the threaded column drives the vertical plate to move, the vertical plate descends, and the vertical plate drives the slide groove to move. Since the slide column slides in the slide groove, the slide groove drives the slide column to move, the slide column drives the clamping column to move, the clamping column slides in the box body, and the clamping column leaves the inside of the second mounting cylinder and the first mounting cylinder of the filter in turn, pulls down the first mounting cylinder to drive the first filter screen to move, pulls the second mounting cylinder to drive the second filter screen to move, and the two filter screens are disassembled. When the multi-layer filter screen for liquid-based cell extraction is disassembled, the two filter screens are disassembled through the disassembly device, thereby improving the disassembly effect of the multi-layer filter screen for liquid-based cell extraction.

[0013] The curved plate and the circular plate are installed inside the first installation cylinder by the bolts in the diversion device. When the liquid-based cell fluid is poured into the circular plate, the liquid-based cell fluid flows evenly onto the first filter screen through the through holes to divert the liquid-based cell fluid. The multi-layer filter screen used for liquid-based cell extraction is set to filter the liquid-based cells. The liquid-based cell fluid is diverted by the diversion device. Cells will not accumulate on the surface of the filter screen, thereby improving the efficiency of liquid-based cell extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the front view structure of

[0016] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0017] Figure 4 for Figure 2 A schematic diagram of a top view structure;

[0018] Figure 5 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 6 for Figure 2 Enlarged structural diagram at B in the middle.

[0020] In the figure: 1. filter, 2. connecting plate, 3. box body, 4. disassembly device, 401. handle, 402. threaded column, 403. vertical plate, 404. slide groove, 405. slide column, 4a1. slider, 4a2. slideway, 5. diverter device, 501. bolt, 502. curved plate, 503. circular plate, 6. first mounting cylinder, 7. first filter screen, 8. second mounting cylinder, 9. second filter screen, 10. drain pipe, 11. clamping column, 12. through hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings: Example 1

[0022] Refer to the attached Figure 1-6 : In the present embodiment, a multi-layer filter screen that is easy to disassemble comprises a filter 1 and a connecting plate 2, wherein the outer wall of the filter 1 is fixedly connected to the outer wall of the connecting plate 2, the outer wall of the connecting plate 2 is fixedly connected to the outer wall of the box body 3, the filter 1 is connected to a drain pipe 10, and the liquid-based cell fluid is discharged through the drain pipe 10 after the filtration is completed, the filter 1 is fitted with a second mounting cylinder 8, a second filter screen 9 is installed inside the second mounting cylinder 8, the second mounting cylinder 8 is fitted with a first mounting cylinder 6, a first filter screen 7 is installed inside the first mounting cylinder 6, the liquid-based cell fluid is diverted by a diverting device 5 to make it flow evenly on the surface of the first filter screen 7, the liquid-based cell fluid is filtered by the first filter screen 7, and flows to the second filter screen 9 to perform multi-layer filtration extraction on the liquid-based cell fluid, a disassembly device 4 is provided inside the box body 3, and a diverting device 5 is provided inside the filter 1;

[0023] Refer to the attached Figure 1-6In this embodiment, the disassembly device 4 includes a handle 401 and a threaded column 402. The handle 401 is fixed to the outer wall of the threaded column 402. The handle 401 drives the threaded column 402 to rotate. The threaded column 402 is threadedly connected to the box body 3. The threaded column 402 is rotatably connected to the vertical plate 403 through a bearing. The threaded column 402 drives the vertical plate 403 to move, and the vertical plate 403 descends. A slide groove 404 is opened inside the vertical plate 403. The slide groove 404 is slidably engaged with the slide column 405. The vertical plate 403 drives the slide groove 404 to move. The slide post 405 slides in the slide groove 404, so the slide groove 404 drives the slide post 405 to move, the outer wall of the slide post 405 is fixedly connected with the clamping rod 11, the clamping rod 11 is slidably connected with the box body 3, the slide post 405 drives the clamping column 11 to move, the clamping column 11 slides in the box body 3, the clamping column 11 sequentially leaves the second installation cylinder 8 and the first installation cylinder 6 of the filter 1, pulls down the first installation cylinder 6 to drive the first filter screen 7 to move, pulls the second installation cylinder 8 to drive the second filter screen 9 to move, and the two filter screens are removed;

[0024] The handle 401 in the disassembly device 4 drives the threaded column 402 to rotate, and the threaded column 402 drives the vertical plate 403 to move, and the vertical plate 403 descends, and the vertical plate 403 drives the slide groove 404 to move. Since the slide column 405 slides in the slide groove 404, the slide groove 404 drives the slide column 405 to move, and the slide column 405 drives the clamping column 11 to move. The clamping column 11 slides in the box body 3, and the clamping column 11 leaves the second mounting cylinder 8 and the first mounting cylinder 6 of the filter 1 in turn, pulls down the first mounting cylinder 6 to drive the first filter screen 7 to move, pulls the second mounting cylinder 8 to drive the second filter screen 9 to move, and the two filter screens are disassembled. When the multi-layer filter screen for liquid-based cell extraction is disassembled, the two filter screens are disassembled by the disassembly device 4, which improves the disassembly effect of the multi-layer filter screen for liquid-based cell extraction.

[0025] Refer to the attached Figure 1-6 : In this embodiment, the clamping rod 11 cooperates with the first mounting tube 6, the second mounting tube 8 and the filter 1 respectively, and the diverter device 5 includes a bolt 501 and a curved plate 502, the bolt 501 is threadedly connected to the curved plate 502, the outer wall of the curved plate 502 is fixedly connected to the outer wall of the circular plate 503, the circular plate 503 is fitted with the first mounting tube 6, and the bolt 501 installs the curved plate 502 and the circular plate 503 to the inside of the first mounting tube 6. When the liquid-based cell fluid is poured into the circular plate 503, the liquid-based cell fluid flows evenly to the first filter screen 7 through the through hole 12, and the liquid-based cell fluid is diverted. The circular plate 503 is processed with a through hole 12 inside, and the bolt 501 is threadedly connected to the first mounting tube 6;

[0026] The curved plate 502 and the circular plate 503 are installed inside the first installation cylinder 6 by the bolts 501 in the diverter device 5. When the liquid-based cell fluid is poured into the circular plate 503, the liquid-based cell fluid flows evenly onto the first filter screen 7 through the through hole 12, and the liquid-based cell fluid is diverted. The multi-layer filter screen used for liquid-based cell extraction is set to filter the liquid-based cells. The liquid-based cell fluid is diverted by the diverter device 5, and cells will not accumulate on the surface of the filter screen, thereby improving the efficiency of liquid-based cell extraction.

[0027] Working principle:

[0028] When disassembling the multi-layer filter screen for liquid-based cell extraction, the staff first pours the liquid-based cell fluid into the interior of the filter 1, and the liquid-based cell fluid is diverted by the diversion device 5 to make it flow evenly on the surface of the first filter screen 7. After the liquid-based cell fluid is filtered by the first filter screen 7, it flows to the second filter screen 9 to perform multi-layer filtration extraction on the liquid-based cell fluid. Finally, after the filtration is completed, the liquid-based cell fluid is discharged through the drain pipe 10. When it is necessary to disassemble the two filter screens, the staff rotates the disassembly devices 4 on both sides to quickly disassemble the two filter screens. The specific disassembly process and diversion process are as follows:

[0029] Disassembly process:

[0030] The staff rotates the handle 401, and the handle 401 drives the threaded column 402 to rotate, and the threaded column 402 drives the vertical plate 403 to move, and the vertical plate 403 drops, and the vertical plate 403 drives the slide groove 404 to move, and because the slide column 405 slides in the slide groove 404, the slide groove 404 drives the slide column 405 to move, and the slide column 405 drives the clamping column 11 to move, and the clamping column 11 slides in the box body 3, and the clamping column 11 leaves the second installation cylinder 8 and the first installation cylinder 6 of the filter 1 in turn, and pulls down the first installation cylinder 6 to drive the first filter screen 7 to move, and pulls the second installation cylinder 8 to drive the second filter screen 9 to move, and the two filter screens are removed;

[0031] Diversion process:

[0032] First, the staff tightens the bolts 501 on both sides, and the bolts 501 install the curved plate 502 and the circular plate 503 into the interior of the first installation cylinder 6. When the liquid-based cell fluid is poured into the circular plate 503, the liquid-based cell fluid flows evenly onto the first filter screen 7 through the through hole 12, thereby diverting the liquid-based cell fluid. Example 2

[0033] Refer to the attached Figure 1-6: In this embodiment, the disassembly device 4 also includes a slider 4a1 and a slide 4a2. The slider 4a1 is fixed to the outer wall of the vertical plate 403. The slider 4a1 is slidably connected to the slide 4a2. The slide 4a2 is opened inside the box body 3. When the vertical plate 403 moves, the vertical plate 403 drives the slider 4a1 to move, and the slider 4a1 slides in the slide 4a2. The slider 4a1 and the slide 4a2 guide the vertical plate 403 to make the vertical plate 403 move stably.

[0034] Working principle:

[0035] When the vertical plate 403 moves, the vertical plate 403 drives the slider 4a1 to move, and the slider 4a1 slides in the slideway 4a2. The slider 4a1 and the slideway 4a2 guide the vertical plate 403 to ensure stable movement of the vertical plate 403.

[0036] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A multi-layer filter screen that is easy to disassemble, comprising a filter (1) and a connecting plate (2), wherein the outer wall of the filter (1) is fixedly connected to the outer wall of the connecting plate (2), and characterized in that: The outer wall of the connecting plate (2) is fixedly connected to the outer wall of the box body (3); the filter (1) is connected to the drain pipe (10); the filter (1) is fitted with a second mounting cylinder (8); a second filter screen (9) is installed inside the second mounting cylinder (8); the second mounting cylinder (8) is fitted with a first mounting cylinder (6); a first filter screen (7) is installed inside the first mounting cylinder (6); a disassembly device (4) is provided inside the box body (3); and a flow diversion device (5) is provided inside the filter (1).

2. The easily disassembled multi-layer filter screen according to claim 1, characterized in that: The disassembly device (4) comprises a handle (401) and a threaded column (402); the handle (401) is fixedly connected to the outer wall of the threaded column (402); the threaded column (402) is threadedly connected to the box body (3); the threaded column (402) is rotatably connected to the vertical plate (403) via a bearing; a sliding groove (404) is provided inside the vertical plate (403); and the sliding groove (404) is slidably engaged with the sliding column (405).

3. The easily disassembled multi-layer filter screen according to claim 2, characterized in that: A clamping rod (11) is fixedly connected to the outer wall of the sliding column (405), and the clamping rod (11) is slidably connected to the box body (3).

4. The easily disassembled multi-layer filter screen according to claim 3, characterized in that: The clamping rod (11) cooperates with the first installation cylinder (6), the second installation cylinder (8) and the filter (1) respectively.

5. The easily disassembled multi-layer filter screen according to claim 1, characterized in that: The flow dividing device (5) comprises a bolt (501) and a curved plate (502), wherein the bolt (501) is threadedly connected to the curved plate (502), the outer wall of the curved plate (502) is fixedly connected to the outer wall of the circular plate (503), and the circular plate (503) is fitted to the first mounting cylinder (6).

6. The easily disassembled multi-layer filter screen according to claim 5, characterized in that: A through hole (12) is machined inside the circular plate (503), and the bolt (501) is threadedly connected to the first mounting cylinder (6).

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