Assembled filter screen

Abstract

The utility model relates to the technical field of liquid-based cell extraction, in particular to an assembled filter screen, which comprises a mounting plate and a mounting block, the outer wall of the mounting plate is fixedly connected with the outer wall of the mounting block, a mounting hole is processed in the mounting block, and the outer wall of the mounting plate is fixedly connected with the outer wall of a connecting block. A rotating button in the assembling device drives a connecting rod to rotate, the connecting rod drives first bevel gears to rotate, two first bevel gears drive second bevel gears to rotate, two second bevel gears drive double-thread screws to rotate, two double-thread screws drive threaded blocks to move, the threaded blocks on the two sides drive transverse columns to move, and two transverse columns drive inserting blocks to move. The inserting blocks on the two sides are inserted into the filter screen, the filter screen is fixed to the middle of the mounting plate, assembling of the filter screen is completed, when the filter screen is assembled, the filter screen is rapidly assembled through the assembling device, the assembling steps are reduced, the assembling time is shortened, and the assembling efficiency of the filter screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-based cell extraction, in particular to an assembled filter screen. 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 the diagnosis, so as to achieve the purpose of improving the diagnosis rate. The intermediate liquid is called cell preservation fluid, which has the functions of maintaining cell morphology, softening mucus, and processing red blood cells. A filter is required during liquid-based cell extraction.

[0003] For example, the authorization announcement number CN215137773U is a stainless steel filter that is easy to assemble, including a connecting plate, a filter body is arranged at the middle position of the connecting plate, and a mounting plate is arranged on the outer surface of the connecting plate. Although the above document can solve the problem that the filter is directly fixed by bolts during installation, which is not convenient for disassembly or installation, making the device inconvenient to operate, and solves the problem that it is not convenient to buffer when filtering through the filter during use, which is easy to affect the circulation of liquid and inconvenient to operate; however, during the use, the filter needs to be pulled by the staff on both sides in turn during the assembly process. The filter screen is assembled by sliding the slide bar to retract the clamp head, and then placing the filter screen on the mounting plate, and finally releasing the slide bars in sequence to complete the assembly of the filter screen, resulting in more assembly steps when assembling the filter screen in and out, which is troublesome and takes a long time to assemble, thereby reducing the assembly efficiency of the filter screen; at the same time, when assembling the filter screen, the filter screen is placed on the mounting plate, because there is no sealing structure inside the mounting plate to seal the mounting plate and the filter screen, avoiding a gap between the filter screen and the mounting plate, resulting in the unfiltered liquid directly flowing out through the existing gap, thereby reducing the filtering effect of the filter screen. Utility Model Content

[0004] The utility model aims to solve the problem of reducing the assembly efficiency of the filter screen and reducing the filtering effect of the filter screen, and proposes an assembled filter screen.

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

[0006] An assembled filter screen is designed, comprising a mounting plate and a mounting block, wherein the outer wall of the mounting plate is fixedly connected to the outer wall of the mounting block, a mounting hole is processed inside the mounting block, the outer wall of the mounting plate is fixedly connected to the outer wall of the connecting block, the inner wall of the mounting plate is fixedly connected to the outer wall of the limit block, the outer wall of the limit block fits with the outer wall of the filter screen, a cross column is arranged inside the mounting plate, the outer walls of the two cross columns are fixedly connected to the outer wall of the plug block, an assembling device is arranged outside the mounting plate, and a sealing device is arranged outside the mounting plate.

[0007] Preferably, the assembly device includes a knob and a connecting rod, the knob is fixedly connected to the outer wall of the connecting rod, the outer wall of the connecting rod is fixedly connected to the first bevel gear, the two first bevel gears are meshed with the second bevel gear, and the two second bevel gears are fixedly connected to the outer wall of the double-headed screw.

[0008] Preferably, the two double-headed screws are both threadedly connected to the threaded block, and the threaded block is both fixedly connected to the inside of the cross column.

[0009] Preferably, the connecting block is rotatably connected to the connecting rod via a bearing, the mounting plate is rotatably connected to the double-headed screw via a bearing, and the insert block is clearance-matched with the filter screen.

[0010] Preferably, the sealing device comprises a sealing ring, a clamping block and a clamping groove, the outer wall of the sealing ring is fixedly connected to the clamping block, and the clamping block and the clamping groove are gap-matched.

[0011] Preferably, the card slot is provided inside the mounting plate, and the outer wall of the sealing ring fits with the outer wall of the filter screen.

[0012] The utility model proposes an assembled filter screen, which has the beneficial effects of: a knob in the assembly device drives the connecting rod to rotate, the connecting rod drives the first bevel gear to rotate, the two first bevel gears drive the second bevel gears to rotate, the two second bevel gears drive the double-headed screw to rotate, the two double-headed screws drive the threaded blocks to move, the threaded blocks on both sides drive the cross columns to move, the two cross columns drive the plug blocks to move, the plug blocks on both sides are inserted into the interior of the filter screen, the filter screen is fixed to the mounting plate, and the assembly of the filter screen is completed. When the filter screen is assembled, the assembly device is used to quickly assemble the filter screen, the assembly steps are reduced, the time is also shortened, and the assembly efficiency of the filter screen is improved.

[0013] By placing the sealing ring in the sealing device at a through position in the middle of the mounting plate, squeezing the sealing ring, the sealing ring drives the card block to move, inserting the card block into the card slot, and fixing the sealing ring on the mounting plate to seal the mounting plate and the filter screen. When the filter screen is assembled, the sealing device is used to increase the sealing between the mounting plate and the filter screen, thereby improving the filtering effect of the filter screen. 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 side view structural schematic diagram of;

[0017] Figure 4 for Figure 2 A side view structural schematic diagram of;

[0018] Figure 5 for Figure 2 A schematic diagram of the structure of the assembly device;

[0019] Figure 6 for Figure 2 Schematic diagram of the structure of the sealing device.

[0020] In the figure: 1, mounting plate, 2, assembling device, 201, knob, 202, connecting rod, 203, first bevel gear, 204, second bevel gear, 205, double-headed screw, 2a1, rubber sleeve, 2a2, slide rod, 3, sealing device, 301, sealing ring, 302, block, 303, slot, 4, cross column, 5, plug block, 6, filter screen, 7, connecting block, 8, mounting block, 9, mounting hole, 10, threaded block, 11, limit block. DETAILED DESCRIPTION

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

[0022] Embodiment 1:

[0023] See attached Figure 1-6 : In this embodiment, an assembled filter screen includes a mounting plate 1 and a mounting block 8, the outer wall of the mounting plate 1 is fixedly connected to the outer wall of the mounting block 8, the staff installs the mounting plate 1 as a whole to the external liquid-based cell extraction device through the mounting block 8 and the mounting hole 9, the mounting block 8 is processed with a mounting hole 9 inside, the outer wall of the mounting plate 1 is fixedly connected to the outer wall of the connecting block 7, the inner wall of the mounting plate 1 is fixedly connected to the outer wall of the limiting block 11, the outer wall of the limiting block 11 is fitted with the outer wall of the filter screen 6, the filter screen 6 is put into the middle position of the mounting plate 1, so that the filter screen 6 contacts the limiting block 11, and the limiting block 11 is used to limit the filter screen 6, the interior of the mounting plate 1 is provided with a horizontal column 4, the outer walls of the two horizontal columns 4 are fixedly connected to the outer wall of the plug block 5, and the outside of the mounting plate 1 is provided with an assembling device 2;

[0024] See attached Figure 1-6In this embodiment, a sealing device 3 is provided on the outside of the mounting plate 1, and the assembling device 2 includes a knob 201 and a connecting rod 202. The knob 201 is fixedly connected to the outer wall of the connecting rod 202, and the knob 201 drives the connecting rod 202 to rotate. The outer wall of the connecting rod 202 is fixedly connected to the first bevel gear 203, and the connecting rod 202 drives the first bevel gear 203 to rotate. The two first bevel gears 203 are meshed with the second bevel gear 204, and the two first bevel gears 203 drive the second bevel gear 204 to rotate. The two second bevel gears The wheels 204 are fixedly connected to the outer wall of the double-headed screw 205, the second bevel gear 204 drives the double-headed screw 205 to rotate, the two double-headed screws 205 are threadedly connected to the threaded block 10, the two double-headed screws 205 drive the threaded block 10 to move, the threaded blocks 10 on both sides drive the cross column 4 to move, the two cross columns 4 drive the plug-in blocks 5 to move, the plug-in blocks 5 on both sides are inserted into the inside of the filter screen 6, the filter screen 6 is fixed to the middle of the mounting plate 1, the assembly of the filter screen 6 is completed, and the threaded blocks 10 are fixedly connected to the inside of the cross column 4;

[0025] The knob 201 in the assembling device 2 drives the connecting rod 202 to rotate, the connecting rod 202 drives the first bevel gear 203 to rotate, the two first bevel gears 203 drive the second bevel gear 204 to rotate, the two second bevel gears 204 drive the double-headed screw 205 to rotate, the two double-headed screws 205 drive the threaded block 10 to move, the threaded blocks 10 on both sides drive the cross column 4 to move, the two cross columns 4 drive the plug blocks 5 to move, the plug blocks 5 on both sides are inserted into the interior of the filter screen 6, the filter screen 6 is fixed to the mounting plate 1, and the assembly of the filter screen 6 is completed. When the filter screen is assembled, the filter screen 6 is quickly assembled through the assembling device 2, the assembly steps are reduced, the time is also shortened, and the assembly efficiency of the filter screen is improved.

[0026] See attached Figure 1-6 : In this embodiment, the connecting block 7 is rotatably connected to the connecting rod 202 through a bearing, the mounting plate 1 is rotatably connected to the double-headed screw 205 through a bearing, the plug block 5 is gap-matched with the filter screen 6, the sealing device 3 includes a sealing ring 301, a clamping block 302 and a clamping groove 303, the outer wall of the sealing ring 301 is fixedly connected to the clamping block 302, the clamping block 302 and the clamping groove 303 are gap-matched, the clamping groove 303 is arranged inside the mounting plate 1, the sealing ring 301 is placed at a position through the middle of the mounting plate 1, the sealing ring 301 is squeezed, the sealing ring 301 drives the clamping block 302 to move, the clamping block 302 is inserted into the clamping groove 303, the sealing ring 301 is fixed to the mounting plate 1, so as to seal between the mounting plate 1 and the filter screen 6, and the outer wall of the sealing ring 301 is in contact with the outer wall of the filter screen 6;

[0027] By placing the sealing ring 301 in the sealing device 3 at the middle through position of the mounting plate 1, the sealing ring 301 is squeezed, and the sealing ring 301 drives the clamping block 302 to move, and the clamping block 302 is inserted into the clamping groove 303, and the sealing ring 301 is fixed to the mounting plate 1 to seal the mounting plate 1 and the filter screen 6. When the filter screen is assembled, the sealing device 3 is used to increase the sealing between the mounting plate 1 and the filter screen 6, thereby improving the filtering effect of the filter screen.

[0028] Working principle:

[0029] When assembling the filter screen for liquid-based cell extraction, the staff first installs the sealing device 3 on the mounting plate 1, and then puts the filter screen 6 into the middle position of the mounting plate 1, so that the filter screen 6 contacts the limit block 11, and the limit block 11 limits the filter screen 6. After completion, the staff rotates the assembly device 2 to assemble the filter screen 6 into the mounting plate 1. The staff installs the mounting plate 1 as a whole to the external liquid-based cell extraction device through the mounting block 8 and the mounting hole 9, and prepares to extract liquid-based cells. The specific assembly process and the installation process of the sealing device 3 are as follows:

[0030] 1. Assembly process:

[0031] The staff member rotates the knob 201, the knob 201 drives the connecting rod 202 to rotate, the connecting rod 202 drives the first bevel gear 203 to rotate, the two first bevel gears 203 drive the second bevel gear 204 to rotate, the two second bevel gears 204 drive the double-headed screw 205 to rotate, the two double-headed screws 205 drive the threaded block 10 to move, the threaded blocks 10 on both sides drive the cross column 4 to move, the two cross columns 4 drive the plug-in blocks 5 to move, the plug-in blocks 5 on both sides are inserted into the interior of the filter screen 6, the filter screen 6 is fixed to the center of the mounting plate 1, and the assembly of the filter screen 6 is completed. After completion, the staff member stops rotating the knob 201;

[0032] 2. Installation process of sealing device 3:

[0033] First, the staff puts the sealing ring 301 on the middle through position of the mounting plate 1, squeezes the sealing ring 301, and the sealing ring 301 drives the block 302 to move, inserts the block 302 into the slot 303, and fixes the sealing ring 301 on the mounting plate 1 to seal between the mounting plate 1 and the filter screen 6.

[0034] Embodiment 2:

[0035] See attached Figure 1-6: In this embodiment, the assembly device 2 also includes a rubber sleeve 2a1 and a sliding rod 2a2. The rubber sleeve 2a1 is fixedly connected to the outer wall of the knob 201, and the sliding rod 2a2 is fixedly connected to the inside of the mounting plate 1. The sliding rod 2a2 is slidably connected to the inside of the cross column 4. When the staff rotates the knob 201, the rubber sleeve 2a1 increases the friction between the knob 201 and the staff's hand, which can better rotate the knob 201. When the cross column 4 moves, the cross column 4 slides in the sliding rod 2a2, and the sliding rod 2a2 limits the cross column 4.

[0036] Working principle:

[0037] When the staff member turns the knob 201 , the rubber sleeve 2a1 increases the friction between the knob 201 and the staff member's hand, which can better rotate the knob 201 . When the cross column 4 moves, the cross column 4 slides in the slide bar 2a2 , and the slide bar 2a2 limits the cross column 4 .

[0038] 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. An assembled filter screen, comprising a mounting plate (1) and a mounting block (8), wherein the outer wall of the mounting plate (1) is fixedly connected to the outer wall of the mounting block (8), characterized in that: The mounting block (8) is internally processed with a mounting hole (9); the outer wall of the mounting plate (1) is fixedly connected to the outer wall of the connecting block (7); the inner wall of the mounting plate (1) is fixedly connected to the outer wall of the limit block (11); the outer wall of the limit block (11) is in contact with the outer wall of the filter screen (6); a transverse column (4) is provided inside the mounting plate (1); the outer walls of the two transverse columns (4) are fixedly connected to the outer wall of the plug block (5); an assembling device (2) is provided outside the mounting plate (1); and a sealing device (3) is provided outside the mounting plate (1).

2. An assembled filter screen according to claim 1, characterized in that: The assembly device (2) comprises a knob (201) and a connecting rod (202); the knob (201) is fixedly connected to the outer wall of the connecting rod (202); the outer wall of the connecting rod (202) is fixedly connected to a first bevel gear (203); the two first bevel gears (203) are meshed with the second bevel gear (204); and the two second bevel gears (204) are fixedly connected to the outer wall of a double-headed screw (205).

3. An assembled filter screen according to claim 2, characterized in that: The two double-headed screws (205) are both threadedly connected to the threaded block (10), and the threaded block (10) is both fixedly connected to the inside of the cross column (4).

4. The assembled filter screen according to claim 1, characterized in that: The connecting block (7) is rotatably connected to the connecting rod (202) via a bearing, the mounting plate (1) is rotatably connected to the double-headed screw (205) via a bearing, and the insert block (5) is clearance-matched with the filter screen (6).

5. The assembled filter screen according to claim 1, characterized in that: The sealing device (3) comprises a sealing ring (301), a clamping block (302) and a clamping groove (303); the outer wall of the sealing ring (301) is fixedly connected to the clamping block (302); and the clamping block (302) and the clamping groove (303) are clearance-matched.

6. The assembled filter screen according to claim 5, characterized in that: The clamping groove (303) is provided inside the mounting plate (1), and the outer wall of the sealing ring (301) is in contact with the outer wall of the filter screen (6).

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