Multi-channel fluorescence immunochromatography analyzer

Abstract

The utility model relates to a multichannel fluorescence immunochromatography analyzer, and belongs to the technical field of analyzers, the multichannel fluorescence immunochromatography analyzer comprises a machine body, a plurality of channels are arranged on the machine body, sleeve shells are arranged at the channels of the machine body, and the upper ends of the sleeve shells and the ends away from the inner bottom walls of the channels are open; a fixing assembly capable of being fixedly separated from the sleeve shell is arranged at the position, at the port of the channel, of the machine body, a sliding sleeve used for bearing the glass slide is slidably connected to the sleeve shell in the length direction of the sleeve shell, and a pushing assembly capable of pushing the sleeve shell towards the outside of the channel is arranged in the position, inside the channel, of the machine body.

Description

Technical Field

[0001] The present application relates to the technical field of analyzers, and in particular to a multi-channel fluorescence immunochromatographic analyzer. Background Art

[0002] Multi-channel fluorescence immunochromatographic analyzers are primarily used in conjunction with fluorescence immunochromatographic reagents for in vitro quantitative detection of analytes in samples. Combining multiple disciplines such as immunology, fluorescence, and biochemistry, these analyzers offer the advantages of high sensitivity and specificity, enabling rapid and easy detection of various biomolecules such as tumor markers, viruses, bacteria, and drugs, for applications in clinical diagnosis and treatment monitoring.

[0003] The existing multi-channel fluorescence immunochromatographic analyzer includes a body with multiple channels. The body is slidably connected to a sliding sleeve for carrying a slide at each of the multiple channels. When testing a sample, the sample reagent is first dropped on the slide, covered with a cover slip, and the sliding sleeve is slid outward of the placement port. The slide and cover slip are placed on the sliding sleeve, and then the sliding sleeve is pushed into the channel to test the sample on the slide.

[0004] With regard to the above-mentioned related technologies, when too much reagent is dripped onto the glass slide, the reagent on the glass slide is easy to drip onto the inner wall of the channel during the process of sliding the sleeve into the channel and sliding the sleeve out of the channel. When the staff cleans the inner wall of the channel later, they need to hold tweezers and clamp the wiping cloth to reach into the channel to clean the inner wall of the channel, which is time-consuming and labor-intensive, and thus there is a defect of low cleaning efficiency of the analyzer channel. Utility Model Content

[0005] In order to improve the working efficiency of analyzer channel cleaning, the present application provides a multi-channel fluorescence immunochromatographic analyzer.

[0006] The multi-channel fluorescence immunochromatographic analyzer provided in this application adopts the following technical solution:

[0007] A multi-channel fluorescence immunochromatographic analyzer comprises a body, the body being provided with a plurality of channels, the body being provided with a casing at each channel, the upper end of the casing and the end away from the bottom wall of the channel being both configured as openings, the body being provided with a fixing assembly at the channel end that can be fixed and separated from the casing, a sliding sleeve for carrying a slide being slidably connected to the casing along its length, and a pushing assembly being provided inside the channel that can push the casing out of the channel.

[0008] By adopting the above technical solution, when the reagent drips from the slide, the reagent drips into the shell. The setting of the shell makes it difficult for the reagent to contact the inner wall of the channel. When cleaning the shell later, the fixing component on the shell is released, and the pushing component pushes the shell to move toward the outside of the channel. The shell drives the sliding sleeve to move, so that the shell and the sliding sleeve are both moved out of the channel. The staff can use a high-pressure water gun to rinse the shell and the sliding sleeve, and there is no need for the staff to hold tweezers and clamp the wiping cloth to clean the inner wall of the channel, which saves time and improves the work efficiency of cleaning the analyzer channel.

[0009] Optionally, the side wall of the shell at one end away from the pushing component is fixedly connected with a connecting plate, and the body is fixed with a first fixed block at the channel, and the first fixed block is provided with a mounting groove on the side away from the body, and the mounting groove passes through a side wall of the first fixed block close to the shell, the connecting plate and the mounting groove are plugged into and adapted, and the first fixed block is provided with a first movable groove on the side wall of the mounting groove, and the fixing assembly includes a baffle and a pull rod, the baffle is arranged in the first movable groove, the baffle and the first fixed block are slidably connected, the pull rod is fixedly connected to the side of the baffle away from the mounting groove, and the end of the pull rod away from the baffle passes through the first fixed block and is slidably connected to the first fixed block.

[0010] By adopting the above technical solution, after the sleeve and the sliding sleeve are cleaned, the sliding sleeve and the sleeve are slidably connected, and then the sleeve is moved toward the channel, the sleeve drives the sliding sleeve and the connecting plate to move, and the connecting plate gradually moves into the installation groove. At the same time, during the movement of the connecting plate in the installation groove, the baffle gradually moves toward the first moving groove, and the baffle drives the pull rod to move. When the connecting plate is on the side of the baffle close to the machine body, the pull rod moves toward the first fixed block, and the pull rod drives the baffle to move, and the baffle moves toward the installation groove. The baffle blocks the connecting plate, making it difficult for the connecting plate to move outward from the installation groove, thereby fixing the sleeve.

[0011] Optionally, the end of the pull rod away from the baffle is fixedly connected to an auxiliary plate, a first spring is fixed between the auxiliary plate and the first fixed block, the first spring is sleeved outside the pull rod, and the side of the baffle away from the pull rod is set as an inclined surface.

[0012] By adopting the above technical solution, in the process of the connecting plate moving toward the inside of the placement groove, the connecting plate first contacts the inclined surface of the baffle and pushes the baffle toward the first moving groove, the baffle drives the pull rod to move, the pull rod drives the auxiliary plate to move, and the first spring is stretched. When the connecting plate is on the side of the baffle close to the machine body, the first spring contracts, and the first spring drives the auxiliary plate to move toward the first fixed block, the auxiliary plate drives the pull rod to move, and the pull rod drives the baffle to move. The baffle blocks the connecting plate, and there is no need for the staff to manually move the pull rod, thereby providing convenience for the staff.

[0013] Optionally, the body is provided with a second fixed block on one side of the channel, a slot is provided through the second fixed block, a fixed plate is fixed on the side of the sliding sleeve facing outside the channel, a second movable slot is provided on one side of the fixed plate, the fixed plate is slidably connected to a card plate in the second fixed slot, a second spring is fixed between the card plate and the bottom wall of the second movable slot, the side of the card plate away from the second spring is set as a slope, the card plate and the slot are snap-fitted, and the fixed plate is slidably connected to a press block in the slot.

[0014] By adopting the above technical solution, after the slide is clamped to the sliding sleeve, the fixed plate is pushed toward the body, the fixed plate drives the sliding sleeve and the clamping plate to move, and the sliding sleeve drives the slide to move. During the movement of the clamping plate, the inclined surface of the clamping plate first contacts the second fixed block, and under the guidance of the second fixed block, the clamping plate moves toward the second movable groove, and the second spring is compressed. When the clamping plate and the clamping slot are aligned, the second spring releases the elastic force, pushing the clamping plate toward the clamping slot. One end of the clamping plate extends into the clamping slot, and the clamping plate and the second fixed block are clamped and fixed, so that the fixed plate and the second fixed block are relatively fixed, so that during the test of the reagent, the sliding sleeve is not easy to move at will. At the same time, during the movement of the clamping plate toward the clamping slot, the clamping plate first contacts the pressing block and pushes the pressing block to move toward the outside of the clamping slot. When the test of the reagent sample is completed, the pressing block is pressed toward the clamping slot, and the pressing block pushes the clamping plate toward the second movable groove. The clamping plate and the clamping slot are disengaged, and the relative fixation between the fixed plate and the second fixed block is released. Therefore, the setting of the pressing block provides convenience for releasing the fixation of the fixed plate relative to the second fixed block.

[0015] Optionally, the pushing assembly includes a push plate and a third spring. The push plate is arranged in the channel, the push plate and the body are slidingly connected, the third spring is fixed between the push plate and the bottom wall of the channel, and the extension direction of the third spring is parallel to the length direction of the channel.

[0016] By adopting the above technical solution, in the process of the sleeve moving toward the channel, the sleeve first contacts the push plate and pushes the push plate to move toward the inside of the channel, and the third spring contracts. When the fixing component releases the fixation of the sleeve, the third spring releases the elastic force and pushes the push plate to move toward the outside of the channel. The push plate pushes the sleeve to move, so that the sleeve moves outside the channel, thereby pushing the sleeve.

[0017] Optionally, the inner wall of the shell is provided with a first sliding groove along its own length direction, the first sliding groove passes through a side wall of the shell away from the pushing component, the shell is slidably connected to a slider in the first sliding groove, the side of the slider facing the inside of the shell is fixedly connected to the sliding sleeve, a second sliding groove is provided on one side of the connecting plate, the second sliding groove is connected to the first sliding groove, the connecting plate is slidably connected to a baffle rod in the second sliding groove, and a moving component for driving the baffle rod to move is provided on the connecting plate.

[0018] By adopting the above technical solution, during the process of the baffle moving toward the placement groove, the moving component pushes the baffle rod to move toward the first slide groove, and one end of the baffle rod extends into the first slide groove. The baffle rod blocks the slider, making it difficult for the slider to disengage from the first slide groove, thereby making it difficult for the sleeve to disengage from the sleeve after the sleeve is fixed.

[0019] Optionally, the moving component includes a shift rod and a shift plate, one end of the shift rod is fixedly connected to the baffle rod, the length direction of the shift rod is perpendicular to the length direction of the baffle rod, the shift plate is fixedly connected to a side wall of the baffle plate, the shift plate is plugged into and adapted to the first moving groove, and the side of the shift plate away from the baffle plate is set as a slope.

[0020] By adopting the above technical solution, during the process of the baffle moving toward the placement groove, the baffle drives the shift plate to move. During the movement of the shift plate, the inclined surface of the shift plate is first released from the shift rod, and pushes the shift rod to move. The shift rod drives the baffle rod to move, and one end of the baffle rod extends into the first sliding groove, so that the moving component realizes the function of driving the baffle rod to move.

[0021] Optionally, the connecting plate is provided with a limiting groove on the side wall of the second slide groove along the length direction of the second slide groove, and the connecting plate is slidably connected to the limiting block in the limiting groove along the length direction of the limiting groove. The limiting block is fixedly connected to the barrier rod facing the side of the second slide groove, and a fourth spring is fixed between the limiting block and the side wall of the limiting groove, and the extension and contraction direction of the fourth spring is parallel to the length direction of the limiting groove.

[0022] By adopting the above technical solution, when the baffle rod moves toward the first sliding groove, the baffle rod drives the limit block to move, and the fourth spring is stretched. When the baffle plate moves toward the first moving groove, the baffle plate drives the shift plate to move upward. As the shift plate gradually enters the first moving groove, the fourth spring gradually contracts, and the fourth spring drives the limit block to move in the direction away from the first sliding groove. The limit block drives the baffle rod to move, and the baffle rod releases the blockage of the slider, allowing the slider to slide out of the first sliding groove.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The sliding sleeve is set in the housing. When the reagent on the slide slides off the slide, the reagent falls into the housing. When cleaning the housing later, the fixing component on the housing is released, and the housing and the sliding sleeve are moved out of the channel. Then, the staff can use cleaning tools such as high-pressure water guns to clean the housing and the sliding sleeve. There is no need for the staff to hold tweezers and clamp a wiping cloth to clean the inner wall of the channel, which saves time and improves the efficiency of cleaning the analyzer channel.

[0025] 2. The card plate and the card slot are fixed together, so that the sliding sleeve is not easy to move relative to the body during the reagent detection process;

[0026] 3. The blocking rod is driven to move by the moving assembly, and the blocking rod blocks the slider, so that after the sleeve is fixed, the sliding sleeve is not easy to separate from the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a multi-channel fluorescence immunochromatographic analyzer according to an embodiment of the present application;

[0028] Figure 2 This is a cross-sectional view of the structure of the push assembly in the embodiment of the present application;

[0029] Figure 3 This is a cross-sectional view of the structure of the fixing assembly in the embodiment of the present application;

[0030] Figure 4 This is a cross-sectional view showing the structure of the casing in the embodiment of the present application;

[0031] Figure 5 This is a cross-sectional view showing the structure of the connecting plate in the embodiment of the present application;

[0032] Figure 6 It is a structural diagram of the mobile component in the embodiment of the present application.

[0033] In the figure, 1. body; 11. channel; 2. sleeve; 21. sleeve; 22. first slide groove; 23. slider; 3. fixing assembly; 31. baffle; 32. pull rod; 4. pushing assembly; 41. push plate; 42. third spring; 5. connecting plate; 51. second slide groove; 52. baffle; 53. limiting groove; 54. limiting block; 55. fourth spring; 6. first fixing block; 61. placement groove; 62. first movable groove; 63. auxiliary plate; 64. first spring; 7. second fixing block; 71. card slot; 72. press block; 8. fixing plate; 81. second movable groove; 82. card plate; 83. second spring; 9. moving assembly; 91. shift rod; 92. shift plate. DETAILED DESCRIPTION

[0034] The following is combined with Figures 1-6 This application is described in further detail.

[0035] The embodiments of the present application disclose a multi-channel fluorescence immunochromatographic analyzer.

[0036] refer to Figure 1 A multi-channel fluorescence immunochromatographic analyzer includes a body 1, and a plurality of first fixing blocks 6 and a plurality of second fixing blocks 7 are fixedly connected to one side of the body 1.

[0037] refer to Figure 1 and Figure 2The body 1 is provided with a plurality of channels 11 on one side connecting the first fixing block 6 and the second fixing block 7. The plurality of first fixing blocks 6 are evenly distributed on opposite sides of the channel 11, and the plurality of second fixing blocks 7 are distributed on the upper side of the channel 11 and correspond one to one. A sleeve 2 is provided at each channel 11, and a pushing component 4 for pushing the sleeve 2 out of the channel 11 is provided between the sleeve 2 and the inner bottom wall of the channel 11.

[0038] The pushing assembly 4 includes a push plate 41 and a third spring 42 . The push plate 41 is vertically arranged in the channel 11 . The push plate 41 is slidably connected to the body 1 . The third spring 42 is fixed between the push plate 41 and the bottom wall of the channel 11 .

[0039] When the housing 2 moves toward the inside of the channel 11, the housing 2 first contacts the push plate 41 and pushes the push plate 41 to move toward the inside of the channel 11, and the third spring 42 contracts. When the housing 2 needs to move out of the channel 11, the third spring 42 releases its elastic force, and the third spring 42 pushes the push plate 41 to move out of the channel 11. The push plate 41 pushes the housing 2 to move, so that the housing 2 moves out of the channel 11.

[0040] refer to Figure 2 and Figure 3 The first fixed block 6 is provided with a placement groove 61 on the side facing away from the body 1. The placement groove 61 passes through a side wall of the first fixed block 6 close to the adjacent channel 11. The upper end of the shell 2 and the end away from the push plate 41 are both set to be open. The shell 2 is fixed with connecting plates 5 on both sides of the opposite sides of the end away from the push plate 41. The connecting plates 5 and the placement groove 61 are plugged in and fitted. A fixing component 3 that can be fixed and separated from the shell 2 is provided at the first fixed block 6.

[0041] The first fixed block 6 is provided with a first movable groove 62 on one side wall of the seating groove 61. The fixed assembly 3 includes a baffle 31 and a pull rod 32. The baffle 31 is arranged in the first movable groove 62. The baffle 31 and the first fixed block 6 are slidingly connected. The pull rod 32 is vertically arranged. One end of the pull rod 32 is fixedly connected to the side of the baffle 31 away from the seating groove 61. The end of the pull rod 32 away from the baffle 31 passes through the first fixed block 6. The pull rod 32 and the first fixed block 6 are slidingly connected. The end of the pull rod 32 away from the baffle 31 is fixedly connected with an auxiliary plate 63. The auxiliary plate 63 and the pull rod 32 are perpendicular. A first spring 64 is fixed between the auxiliary plate 63 and the first fixed block 6. The first spring 64 is sleeved on the outside of the pull rod 32. The side of the baffle 31 away from the pull rod 32 is set as an inclined surface.

[0042] In the process of the shell 2 moving into the channel 11, the shell 2 drives the connecting plate 5 to move. The connecting plate 5 first contacts the inclined surface of the baffle 31 and pushes the baffle 31 toward the first moving groove 62. The baffle 31 drives the pull rod 32 to move, and the pull rod 32 drives the auxiliary plate 63 to move. The first spring 64 is stretched. After the connecting plate 5 is on the side of the baffle 31 close to the body 1, the first spring 64 contracts. The first spring 64 drives the auxiliary plate 63 to move toward the first fixed block 6. The auxiliary plate 63 drives the pull rod 32 to move, and the pull rod 32 drives the baffle 31 to move. The baffle 31 blocks the connecting plate 5, making it difficult for the connecting plate 5 to move out of the placement groove 61, thereby achieving the fixation of the shell 2 relative to the body 1.

[0043] refer to Figure 2 and Figure 4 A sliding sleeve 21 for carrying a glass slide is provided in the shell 2. First sliding grooves 22 are opened on the inner walls of the opposite sides of the shell 2 along their own length. The first sliding groove 22 passes through the side wall of the shell 2 away from the push plate 41. The shell 2 is slidably connected to a slider 23 along the length direction of the first sliding groove 22 in the first sliding groove 22. The slider 23 is fixedly connected to the sliding sleeve 21 on the side facing the inside of the shell 2. A fixing plate 8 is fixed on the end of the sliding sleeve 21 away from the push plate 41, and the fixing plate 8 is outside the shell 2.

[0044] After the housing 2 and the body 1 are fixed, the fixing plate 8 is pulled away from the body 1, and the fixing plate 8 drives the sliding sleeve 21 to move out of the housing 2, and then the slide is placed on the sliding sleeve 21. After the placement is completed, the fixing plate 8 is pushed toward the inside of the housing 2, and the fixing plate 8 drives the sliding sleeve 21 to move, and the sliding sleeve 21 drives the slide to move, so that the slide moves into the channel 11, and the body 1 detects the reagent on the slide.

[0045] refer to Figure 2 The second fixed block 7 is penetrated by a card slot 71, and the second fixed block 7 is slidably connected to a pressing block 72 in the card slot 71. A second movable groove 81 is opened on the upper surface of the fixed plate 8, and the fixed plate 8 is slidably connected to a card plate 82 in the second movable groove 81. The card plate 82 and the card slot 71 are snap-fitted together, and a second spring 83 is fixed between the card plate 82 and the inner bottom wall of the second movable groove 81, and the upper surface of the card plate 82 is set to be an inclined surface.

[0046] After the slide is placed on the sliding sleeve 21, the fixing plate 8 is pushed toward the housing 2, and the fixing plate 8 drives the sliding sleeve 21 and the card plate 82 to move. During the movement of the card plate 82, the card plate 82 first contacts the second fixed block 7. Under the guidance of the second fixed block 7, the card plate 82 moves toward the second moving groove 81, and the second spring 83 is compressed. When the card plate 82 and the card slot 71 are aligned, the second spring 83 releases the elastic force, pushing the card plate 82 to move toward the card slot 71, and the card plate The end of 82 away from the second spring 83 extends into the slot 71, so that the fixing plate 8 is fixed relative to the body 1. At the same time, when the fixing plate 82 moves toward the slot 71, the fixing plate 82 first contacts the pressing block 72 and pushes the pressing block 72 to move toward the outside of the slot 71. When it is necessary to release the fixation of the fixing plate 8 relative to the body 1, the pressing block 72 is pressed toward the slot 71, and the pressing block 72 pushes the fixing plate 82 to move, and the fixing plate 82 and the slot 71 are disengaged, thereby releasing the fixation of the fixing plate 8 relative to the body 1.

[0047] refer to Figure 4 、 Figure 5 and Figure 6 A second slide groove 51 is provided on the side of the connecting plate 5 facing away from the body 1 in the direction toward the sleeve 2. The second slide groove 51 is connected to the first slide groove 22. The connecting plate 5 is provided with a limiting groove 53 on the opposite sides of the second slide groove 51. The connecting plate 5 is slidably connected to the limiting block 54 in the limiting groove 53. The limiting block 54 is fixedly connected to the stop rod 52 at one end close to the second slide groove 51. A fourth spring 55 is fixed between the limiting block 54 and a side wall of the limiting groove 53. The extension direction of the fourth spring 55 is parallel to the length direction of the limiting groove 53. A moving component 9 is provided at the connecting plate 5 to drive the stop rod 52 to move.

[0048] The moving assembly 9 includes a shift rod 91 and a shift plate 92. The length direction of the shift rod 91 is perpendicular to the connecting plate 5. One end of the shift rod 91 is fixedly connected to the baffle rod 52. The shift plate 92 is fixedly connected to one side of the baffle 31. The shift plate 92 is plugged into and adapted to the first moving groove 62. The side of the shift plate 92 away from the baffle 31 is set as a slope.

[0049] The stop block 54 drives the stop rod 52 to move, and the stop rod 52 releases the obstruction of the slider 23, and then moves the housing 2 out of the channel 11, and then slides the sleeve 21 toward the outside of the housing 2, and the sleeve 21 drives the slider 23 to move out of the housing 2, and then cleans the housing 2 and the sleeve 21.

[0050] The implementation principle of a multi-channel fluorescence immunochromatographic analyzer in an embodiment of the present application is as follows: when the sample reagent on the slide slides off the slide, the sample reagent drips into the housing 2, and the sample reagent is not easy to contact the inner wall of the channel 11. When the housing 2 and the sliding sleeve 21 are cleaned later, the fixing component 3 of the housing 2 relative to the body 1 is released, and then the housing 2 is moved toward the outside of the channel 11, so that the housing 2 moves to the outside of the channel 11, and the housing 2 drives the sliding sleeve 21 to move to the outside of the channel 11, and then the sliding sleeve 21 is slid to separate the sliding sleeve 21 from the housing 2. The staff completes the cleaning of the housing 2 and the sliding sleeve 21 with the help of a high-pressure water gun, and there is no need for the staff to hold tweezers and clamp a wiping cloth to clean the inner wall of the channel 11, which saves time and thus improves the working efficiency of cleaning the analyzer channel.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A multi-channel fluorescence immunochromatographic analyzer, comprising a body (1), wherein the body (1) is provided with a plurality of channels (11), characterized in that: The body (1) is provided with a casing (2) at the channel (11); the upper end of the casing (2) and the end away from the inner bottom wall of the channel (11) are both arranged in an open shape; the body (1) is provided with a fixing component (3) capable of being fixed and separated from the casing (2) at the end of the channel (11); a sliding sleeve (21) for carrying a slide is slidably connected to the casing (2) along its own length direction; and the body (1) is provided with a pushing component (4) capable of pushing the casing (2) out of the channel (11) inside the channel (11).

2. A multi-channel fluorescence immunochromatographic analyzer according to claim 1, characterized in that: The side wall of the sleeve (2) away from the pushing component (4) is fixedly connected with a connecting plate (5), and the body (1) is fixedly provided with a first fixing block (6) at the channel (11). The first fixing block (6) is provided with a placement groove (61) on the side away from the body (1), and the placement groove (61) passes through the side wall of the first fixing block (6) close to the sleeve (2). The connecting plate (5) and the placement groove (61) are plugged and adapted. The first fixing block (6) is provided with a first movable groove (62) on the side wall of the placement groove (61). The fixing component (3) includes a baffle (31) and a pull rod (32). The baffle (31) is arranged in the first movable groove (62). The baffle (31) and the first fixing block (6) are slidably connected. The pull rod (32) is fixedly connected to the side of the baffle (31) away from the placement groove (61). The end of the pull rod (32) away from the baffle (31) passes through the first fixing block (6) and is slidably connected to the first fixing block (6).

3. A multi-channel fluorescence immunochromatographic analyzer according to claim 2, characterized in that: The end of the pull rod (32) away from the baffle (31) is fixedly connected to an auxiliary plate (63), and a first spring (64) is fixed between the auxiliary plate (63) and the first fixed block (6). The first spring (64) is sleeved outside the pull rod (32), and the side of the baffle (31) away from the pull rod (32) is set as an inclined surface.

4. The multi-channel fluorescence immunochromatographic analyzer according to claim 1, characterized in that: The body (1) is fixedly provided with a second fixed block (7) on one side of the channel (11), and a card slot (71) is provided through the second fixed block (7). A fixed plate (8) is fixedly provided on the side of the sliding sleeve (21) facing the outside of the channel (11), and a second movable slot (81) is provided on one side of the fixed plate (8). The fixed plate (8) is slidably connected to a card plate (82) in the second fixed slot, and a second spring (83) is fixedly provided between the card plate (82) and the inner bottom wall of the second movable slot (81). A side of the card plate (82) away from the second spring (83) is set as an inclined surface, and the card plate (82) and the card slot (71) are snap-fitted. The fixed plate (8) is slidably connected to a press block (72) in the card slot (71).

5. The multi-channel fluorescence immunochromatographic analyzer according to claim 1, characterized in that: The pushing assembly (4) includes a push plate (41) and a third spring (42). The push plate (41) is arranged in the channel (11). The push plate (41) and the body (1) are slidably connected. The third spring (42) is fixed between the push plate (41) and the bottom wall of the channel (11). The expansion and contraction direction of the third spring (42) is parallel to the length direction of the channel (11).

6. The multi-channel fluorescence immunochromatographic analyzer according to claim 2, characterized in that: The inner side wall of the sleeve (2) is provided with a first sliding groove (22) along its own length direction, and the first sliding groove (22) penetrates the side wall of the sleeve (2) away from the pushing component (4). The sleeve (2) is slidably connected with a slider (23) in the first sliding groove (22), and the side of the slider (23) facing the inside of the sleeve (2) is fixedly connected to the sliding sleeve (21). A second sliding groove (51) is provided on one side of the connecting plate (5), and the second sliding groove (51) is connected to the first sliding groove (22). The connecting plate (5) is slidably connected with a blocking rod (52) in the second sliding groove (51), and a moving component (9) for driving the blocking rod (52) to move is provided on the connecting plate (5).

7. The multi-channel fluorescence immunochromatographic analyzer according to claim 6, characterized in that: The moving assembly (9) comprises a shifting rod (91) and a shifting plate (92), one end of the shifting rod (91) is fixedly connected to the baffle rod (52), the length direction of the shifting rod (91) is perpendicular to the length direction of the baffle rod (52), the shifting plate (92) is fixedly connected to a side wall of the baffle plate (31), the shifting plate (92) is plugged and adapted to the first moving groove (62), and the side of the shifting plate (92) away from the baffle plate (31) is set as an inclined surface.

8. The multi-channel fluorescence immunochromatographic analyzer according to claim 6, characterized in that: The connecting plate (5) is provided with a limiting groove (53) on the side wall of the second sliding groove (51) along the length direction of the second sliding groove (51); the connecting plate (5) is slidably connected to a limiting block (54) in the limiting groove (53) along the length direction of the limiting groove (53); the limiting block (54) is fixedly connected to the blocking rod (52) on the side facing the second sliding groove (51); a fourth spring (55) is fixedly provided between the limiting block (54) and the side wall of the limiting groove (53); and the expansion and contraction direction of the fourth spring (55) is parallel to the length direction of the limiting groove (53).

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