A fluorescence detection device

CN224651210UActive Publication Date: 2026-08-18KEAISE MEDICINE WUHAN
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Patent Information

Application Number
CN202521860983.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-30
Publication Date
2026-08-18
Estimated Expiration
2035-08-30

AI Technical Summary

Technical Problem

[0003]现行设备在操作时,是将存放待测物的容器放置于激发光源前端,通过激发光源对容器内标记物进行照射,而容器表面难免出现沾染异物的情况,这样就会容易遮挡激发光线对容器内待测物的照射情况,从而影响检测,就需要工作人员取出调整角度后再重新放置,方可进行检测,不仅费时费力,而且微小的异物还不易清理,极大地影响了检测数据的可靠性,因此需要研发一种荧光检测装置,以解决现有技术中存在的不足之处

Benefits of technology

[0006] The beneficial effects of this utility model are as follows: By setting up the first and second transmission belts, and with the cooperation of the linkage component and the limiting gear ring, the transmission component drives the first and second transmission belts to run through the transmission roller, so that the object to be tested placed on the placement tray can rotate 360 ​​degrees relative to the detector, avoiding the situation where foreign objects on the surface of the container of the object to be tested block the light. At the same time, the detector can detect the object to be tested in the container from 360 degrees, effectively improving the detection effect and facilitating the acquisition of more reliable detection data.

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Abstract

The utility model relates to fluorescence detection, concretely is a kind of fluorescence detection device, comprising: detection device, the side of the detection device is equipped with detection bin, the inside of the detection bin is provided with detection component, protection component and transmission component, the transmission component is connected with detection component transmission by protection component, and the front of detection device is provided with operating component;The detection component includes the base component installed in the inside of detection bin, and the inside of the base component is movably installed with the coaxial first transmission belt and second transmission belt.The utility model under the cooperation of linkage assembly and limit gear ring, when transmission component drives first transmission belt and second transmission belt operation, the object to be measured on placing tray can rotate relative to detector, avoid the situation that the surface foreign matter of object to be measured obstructs light, can also make detector can detect the object to be measured in container comprehensively, effectively improve detection effect, and it is convenient to obtain more reliable detection data.
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Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a fluorescence detection device. Background Technology

[0002] Immunochromatography is a rapid diagnostic technique that has emerged in recent years. Its principle is to first fix specific antibodies to a certain zone of a nitrocellulose membrane. When one end of the dried nitrocellulose is immersed in the sample (urine or serum), the sample will move forward along the membrane due to capillary action. When it moves to the area where the antibody is fixed, the corresponding antigen in the sample will specifically bind to the antibody, thus achieving specific immunodiagnosis. Depending on the label used, it can be divided into fluorescence method and colloidal gold method.

[0003] In current equipment, the container holding the test sample is placed in front of the excitation light source, and the excitation light source illuminates the marker inside the container. However, foreign objects inevitably accumulate on the surface of the container, which can easily block the excitation light from illuminating the test sample inside the container, thus affecting the detection. This requires the operator to remove the container, adjust the angle, and then reposition it before testing can proceed. This process is not only time-consuming and labor-intensive, but also difficult to clean, as small foreign objects are hard to remove, greatly affecting the reliability of the test data. Therefore, it is necessary to develop a fluorescence detection device to address the shortcomings of the existing technology. Utility Model Content

[0004] This invention addresses the technical problems existing in the prior art by providing a fluorescence detection device.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A fluorescence detection device includes: a detection device, a detection chamber opened on the side of the detection device, a detection component, a protective component and a transmission component disposed inside the detection chamber, the protective component being connected to the detection component via the transmission component, and an operation component disposed on the front of the detection device.

[0006] The beneficial effects of this utility model are as follows: By setting up the first and second transmission belts, and with the cooperation of the linkage component and the limiting gear ring, the transmission component drives the first and second transmission belts to run through the transmission roller, so that the object to be tested placed on the placement tray can rotate 360 ​​degrees relative to the detector, avoiding the situation where foreign objects on the surface of the container of the object to be tested block the light. At the same time, the detector can detect the object to be tested in the container from 360 degrees, effectively improving the detection effect and facilitating the acquisition of more reliable detection data.

[0007] Furthermore, the detection component includes a base assembly installed inside the detection chamber. A first and second coaxial transmission belt are movably mounted inside the base assembly. Transmission rollers are driven to both ends of the first transmission belt. A plurality of linkage components are disposed on the top of the base assembly, evenly distributed on the tops of the first and second transmission belts. The bottom ends of each linkage component are fixedly connected to the tops of the first and second transmission belts, respectively. A detector and a placement tray are respectively mounted on the tops of both ends of the linkage components, located above the first and second transmission belts. The detector contains a fluorescence emitter and a receiver, and the placement tray holds the object to be tested. A limiting gear ring is also disposed inside the base assembly, located outside the second transmission belt and below the placement tray. The inner wall of the limiting gear ring is connected to the outer surface of the linkage components. Through the limiting gear ring, the linkage components can work together to allow the placement tray to rotate relative to the detector when the second transmission belt moves with the first transmission belt, thereby causing the object to be tested on the placement tray to rotate relative to the detector.

[0008] Furthermore, the detection chamber includes a detection chamber body located inside the detection device, the detection component is disposed inside the detection chamber body, a protective window is provided on the side of the detection device and connected to the end of the detection chamber body, one end of the transmission component is connected to the bottom of the base component, and the other end of the transmission component extends into the protective window and is connected to the protective component.

[0009] Furthermore, the base assembly includes a base installed inside the detection chamber body, the first transmission belt and the second transmission belt are movably installed inside the base, a first limiting seat installed inside the detection chamber body is provided between the first transmission belt and the second transmission belt, and a second limiting seat installed inside the detection chamber body is provided between the first transmission belt and the transmission roller, and gaps are left between the base, the second transmission belt, the first limiting seat, the first transmission belt and the second limiting seat.

[0010] Furthermore, the linkage assembly includes a linkage frame fixedly installed on the top of the first and second transmission belts. The centerline of the linkage frame is perpendicular to the first and second transmission belts. Inside the linkage frame, a linkage shaft located above the second transmission belt is rotatably connected via a bearing. The bottom of the linkage shaft passes through the linkage frame and is fixedly connected to a linkage gear. The placement tray is fixedly installed on the top of the linkage gear. The outer surface of the linkage gear meshes with a limiting gear ring. The linkage frame allows the second transmission belt to move synchronously with the first transmission belt, thereby causing the object to be tested on the placement tray to move synchronously with the detector, ensuring that the detector can always illuminate the object to be tested on the placement tray.

[0011] Furthermore, the side of the detection device is provided with a storage cavity parallel to the detection chamber body and located behind it. One end of the storage cavity extends into the protective window, and the protective component is slidably connected to the storage cavity.

[0012] Furthermore, the protective assembly includes a protective plate that is slidably connected to the storage cavity and the protective window and covers the end of the detection chamber body. One end of the protective plate is fixedly connected to a push-pull plate that is slidably engaged inside the protective window. The other end of the protective plate is fixedly connected to a limiting slide plate, which is slidably engaged inside the storage cavity. The other end of the limiting slide plate is fixedly connected to a return spring, which is fixedly connected to the inner wall of the storage cavity. Under the elastic restoring force of the return spring, the protective plate and the push-pull plate can be pushed to reset and move along the inside of the protective window so that they eventually completely cover the end of the detection chamber body.

[0013] Furthermore, the bottom of the protective plate near the detection chamber body is provided with several linkage grooves, and the protective plate is connected to the transmission component through the linkage grooves. When the protective plate moves along the inside of the protective window and covers the end of the detection chamber body, it can drive the detection component to move through the meshing connection of the linkage grooves and the transmission gear, thereby causing the object to be tested to rotate relative to the detector.

[0014] Furthermore, the transmission assembly includes a linkage belt disposed at the bottom of the base assembly and not in contact with the detection device. One end of the linkage belt is driven and sleeved with a transmission shaft fixedly connected to the bottom of one of the transmission rollers. The other end of the linkage belt is rotatably sleeved with a transmission gear. The top of the transmission gear is rotatably connected to the bottom of the base through a bearing. The outer surface of the transmission gear meshes with the linkage tooth groove. With the cooperation of the transmission gear, the moving protective plate can drive the linkage belt through the cooperation of the linkage tooth groove and the transmission gear. In turn, the first transmission belt can be driven through the transmission shaft and the transmission roller. With the cooperation of the linkage frame, the first transmission belt and the second transmission belt can move synchronously.

[0015] Furthermore, the upper part of the front of the detection device is a slope, and a handrail is provided at the lower end of the slope. The operating component is disposed on the slope and located above the handrail. The operating component includes a display and an operation panel. A detection control component is disposed inside the detection device. The detector transmits signals to the detection control component. The display and operation panel are electrically connected to the detection control component. The handrail allows workers to lean on or support themselves during long-term detection work, reducing fatigue from standing for long periods. It also helps to prevent accidental touches on the display and operation panel to some extent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the structure of the detection component of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the detection component of this utility model; Figure 5 This is a schematic diagram of the linkage component of this utility model; Figure 6 This is a schematic diagram of the structure of the protective component of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Detection device; 2. Detection chamber; 21. Detection chamber body; 22. Protective window; 3. Detection component; 31. Base assembly; 311. Base; 312. First limit seat; 313. Second limit seat; 32. First transmission belt; 33. Second transmission belt; 34. Transmission roller; 35. Linkage component; 351. Linkage frame; 352. Linkage shaft; 353. Linkage gear; 36. Detector; 37. Placement tray; 38. Limiting gear ring; 4. Protective component; 41. Push-pull plate; 42. Protective plate; 43. Limiting slide plate; 44. Return spring; 45. Linkage tooth groove; 5. Transmission component; 51. Linkage belt; 52. Transmission shaft; 53. Transmission gear; 6. Display; 7. Operation panel; 8. Handrail. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0021] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0022] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0023] Example 1 like Figures 1 to 6 As shown, a fluorescence detection device includes: a detection device 1, a detection chamber 2 is provided on the side of the detection device 1, a detection component 3, a protective component 4 and a transmission component 5 are arranged inside the detection chamber 2, the protective component 4 is connected to the detection component 3 through the transmission component 5, and an operation component is provided on the front of the detection device 1.

[0024] When the protective component 4 resets under its own elastic restoring force, under the restriction of the detection chamber 2, the detection component 3 can be driven to run through the cooperation of the protective component 4 and the transmission component 5, thereby driving the test object placed on the detection component 3 to rotate. This allows the detection mechanism to perform comprehensive detection on the test object, avoiding the situation where foreign objects on the surface of the test object container block the light transmission and affect the reliability of the detection results.

[0025] The detection component 3 includes a base component 31 installed inside the detection chamber 2. A first transmission belt 32 and a second transmission belt 33 are movably mounted coaxially inside the base component 31. Transmission rollers 34 are connected to both ends of the first transmission belt 32. A plurality of linkage components 35 are disposed on the top of the base component 31, evenly distributed on the tops of the first transmission belt 32 and the second transmission belt 33. The bottom ends of each linkage component 35 are fixedly connected to the tops of the first transmission belt 32 and the second transmission belt 33, respectively. The tops of each linkage component 35 are respectively mounted above the first transmission belt 32 and the second transmission belt 33. The detector 36 contains a fluorescent emitter and a receiver, and the test object is placed on the placement tray 37. The base assembly 31 also contains a limiting gear ring 38 located outside the second transmission belt 33 and below the placement tray 37. The inner wall of the limiting gear ring 38 is connected to the outer surface of the linkage assembly 35. Due to the cooperation of the protective assembly 4 and the transmission assembly 5, the first transmission belt 32 is driven by the transmission roller 34. Then, with the cooperation of the linkage assembly 35, the second transmission belt 33 and the first transmission belt 32 move synchronously, thereby making the placement tray 37 and the detector 36 on the top of the linkage assembly 35 move synchronously.

[0026] The detection chamber 2 includes a detection chamber body 21 located inside the detection device 1, a detection component 3 located inside the detection chamber body 21, a protective window 22 connected to the end of the detection chamber body 21 on the side of the detection device 1, one end of the transmission component 5 connected to the bottom of the base component 31, and the other end of the transmission component 5 extending into the protective window 22 and connected to the protective component 4; the inner wall size of the detection chamber body 21 is smaller than the inner wall size of the protective window 22, and the outer surface size of the protective component 4 is adapted to the inner wall size of the protective window 22.

[0027] The base assembly 31 includes a base 311 installed inside the detection chamber body 21, a first transmission belt 32 and a second transmission belt 33 movably installed inside the base 311, a first limiting seat 312 installed inside the detection chamber body 21 between the first transmission belt 32 and the second transmission belt 33, and a second limiting seat 313 installed inside the detection chamber body 21 between the first transmission belt 32 and the transmission roller 34. Gaps are left between the base 311, the second transmission belt 33, the first limiting seat 312, the first transmission belt 32, and the second limiting seat 313. With the cooperation of the base 311, the first limiting seat 312, and the second limiting seat 313, the first transmission belt 32, the second transmission belt 33, and the transmission roller 34 can move stably and independently, while also being interconnected with the cooperation of the linkage assembly 35, etc., thereby ensuring the stable movement of the first transmission belt 32, the second transmission belt 33, and the linkage assembly 35 on top of them.

[0028] The linkage assembly 35 includes a linkage frame 351 fixedly installed on the top of the first transmission belt 32 and the second transmission belt 33. The centerline of the linkage frame 351 is perpendicular to the first transmission belt 32 and the second transmission belt 33. Inside the linkage frame 351, a linkage shaft 352 located above the second transmission belt 33 is rotatably sleeved via a bearing. The bottom of the linkage shaft 352 passes through the linkage frame 351 and is fixedly connected to a linkage gear 353. A placement disc 37 is fixedly installed on the top of the linkage gear 353. The outer surface of the linkage gear 353 is parallel to the ground surface. The limiting gear ring 38 is engaged; when the linkage frame 351 moves relative to the limiting gear ring 38 following the second transmission belt 33 and the first transmission belt 32, it can drive the detector 36 and the placement disk 37 on its top to move relative to the limiting gear ring 38 at the same time. Then, under the meshing action of the linkage gear 353 and the limiting gear ring 38, the synchronously moving placement disk 37 and detector 36 move relative to each other at the same time, so that the object to be tested on the top of the placement disk 37 rotates relative to the detector 36, so that the detector 36 can fully detect the object to be tested.

[0029] The detection device 1 also has a storage cavity on its side that is parallel to the detection chamber body 21 and located behind it. One end of the storage cavity extends into the protective window 22, and the protective component 4 is slidably connected to the storage cavity.

[0030] The protective component 4 includes a protective plate 42 that is slidably connected to the storage cavity and the protective window 22 and covers the end of the detection chamber body 21. One end of the protective plate 42 is fixedly connected to a push-pull plate 41 that is slidably engaged inside the protective window 22. The other end of the protective plate 42 is fixedly connected to a limiting slide plate 43, which is slidably engaged inside the storage cavity. The other end of the limiting slide plate 43 is fixedly connected to a return spring 44, which is fixedly connected to the inner wall of the storage cavity. Under the elastic restoring force of the return spring 44, it can push... The limiting slide plate 43, under the restriction of the storage cavity, causes the protective plate 42 and the push-pull plate 41 to reset and move along the protective window 22, so that they eventually completely cover the end of the detection chamber body 21. At the same time, the transmission component 5 is driven to move through the linkage tooth groove 45. During this period, due to the limited air passage rate between the outer surface of the limiting slide plate 43 and the storage cavity, the protective plate 42 and the others can be continuously and relatively slowly reset under the elastic restoring force of the reset spring 44, thereby causing the detection component 3 to move continuously and relatively slowly and smoothly through the transmission component 5.

[0031] Among them, the bottom of the protective plate 42 near the detection chamber body 21 is provided with several linkage grooves 45. The protective plate 42 is connected to the transmission component 5 through the linkage grooves 45. When the protective plate 42 moves along the protective window 22 and covers the end of the detection chamber body 21, it can drive the detection component 3 to move through the meshing connection of the linkage grooves 45 and the transmission gear 53, so that the object to be tested rotates relative to the detector 36.

[0032] The transmission assembly 5 includes a linkage belt 51 located at the bottom of the base assembly 31 and not in contact with the detection device 1. One end of the linkage belt 51 is connected to a transmission shaft 52 fixedly connected to the bottom of one of the transmission rollers 34. The other end of the linkage belt 51 is rotatably connected to a transmission gear 53. The top of the transmission gear 53 is rotatably connected to the bottom of the base 311 via a bearing. The outer surface of the transmission gear 53 meshes with the linkage tooth groove 45. With the cooperation of the transmission gear 53, the moving protective plate 42 can drive the linkage belt 51 to run through the linkage tooth groove 45 and the transmission gear 53. In turn, the first transmission belt 32 can be driven to run through the transmission shaft 52 and the transmission roller 34. With the cooperation of the linkage frame 351, the first transmission belt 32 and the second transmission belt 33 can move synchronously.

[0033] The upper part of the front of the detection device 1 is a slope, and a handrail 8 is provided at the lower end of the slope. The operating component is located on the slope and above the handrail 8. The operating component includes a display 6 and an operation panel 7. The detection control component is provided inside the detection device 1. The detector 36 transmits signals to the detection control component. The display 6 and the operation panel 7 are electrically connected to the detection control component. The handrail 8 allows the staff to lean on or support themselves during long-term detection work, reducing fatigue from standing for long periods of time. At the same time, it can also prevent accidental touches on the display 6 and the operation panel 7 to a certain extent.

[0034] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A fluorescence detection device, characterized in that: include: The detection device (1) has a detection chamber (2) on its side. The detection chamber (2) is equipped with a detection component (3), a protective component (4) and a transmission component (5). The protective component (4) is connected to the detection component (3) through the transmission component (5). The detection device (1) has an operation component on its front. The detection component (3) includes a base component (31) installed inside the detection chamber (2). A first transmission belt (32) and a second transmission belt (33) are movably mounted inside the base component (31). Transmission rollers (34) are connected to both ends of the first transmission belt (32). A plurality of linkage components (35) are provided on the top of the base component (31). These linkage components (35) are evenly distributed on the top of the first transmission belt (32) and the second transmission belt (33). The bottom ends of each linkage component (35) are fixedly connected to the first transmission belt (32). 2) The top of the second transmission belt (33) and the top of the linkage assembly (35) are respectively equipped with detectors (36) and placement trays (37) located above the first transmission belt (32) and the second transmission belt (33). The detector (36) is equipped with a fluorescent emitter and a receiver. The placement tray (37) is equipped with a test object. The base assembly (31) is also equipped with a limiting gear ring (38) located outside the second transmission belt (33) and below the placement tray (37). The inner wall of the limiting gear ring (38) is connected to the outer surface of the linkage assembly (35).

2. The fluorescence detection device according to claim 1, characterized in that: The detection chamber (2) includes a detection chamber body (21) opened inside the detection device (1), the detection component (3) is set inside the detection chamber body (21), the side of the detection device (1) is provided with a protective window (22) connected to the end of the detection chamber body (21), one end of the transmission component (5) is connected to the bottom of the base component (31), and the other end of the transmission component (5) extends into the protective window (22) and is connected to the protective component (4); the inner wall size of the detection chamber body (21) is smaller than the inner wall size of the protective window (22), and the outer surface size of the protective component (4) is adapted to the inner wall size of the protective window (22).

3. The fluorescence detection device according to claim 2, characterized in that: The base assembly (31) includes a base (311) installed inside the detection chamber body (21), the first transmission belt (32) and the second transmission belt (33) are movably installed inside the base (311), a first limiting seat (312) installed inside the detection chamber body (21) is provided between the first transmission belt (32) and the second transmission belt (33), and a second limiting seat (313) installed inside the detection chamber body (21) is provided between the first transmission belt (32) and the transmission roller (34), and gaps are left between the base (311), the second transmission belt (33), the first limiting seat (312), the first transmission belt (32) and the second limiting seat (313).

4. The fluorescence detection device according to claim 1, characterized in that: The linkage assembly (35) includes a linkage frame (351) fixedly installed on the top of the first transmission belt (32) and the second transmission belt (33). The center line of the linkage frame (351) is perpendicular to the first transmission belt (32) and the second transmission belt (33). The linkage frame (351) is rotatably sleeved with a linkage shaft (352) located above the second transmission belt (33) through a bearing. The bottom of the linkage shaft (352) passes through the linkage frame (351) and is fixedly connected to a linkage gear (353). The placement plate (37) is fixedly installed on the top of the linkage gear (353). The outer surface of the linkage gear (353) is meshed with a limiting gear ring (38).

5. A fluorescence detection device according to claim 2, characterized in that: The detection device (1) also has a storage cavity on its side that is parallel to the detection chamber body (21) and located behind it. One end of the storage cavity extends into the protective window (22), and the protective component (4) is slidably connected to the storage cavity.

6. The fluorescence detection device according to claim 5, characterized in that: The protective component (4) includes a protective plate (42) that is slidably connected to the storage cavity and the protective window (22) and covers the end of the detection chamber body (21). One end of the protective plate (42) is fixedly connected to a push-pull plate (41) that is slidably engaged inside the protective window (22). The other end of the protective plate (42) is fixedly connected to a limiting slide plate (43). The limiting slide plate (43) is slidably engaged inside the storage cavity. The other end of the limiting slide plate (43) is fixedly connected to a reset spring (44). The other end of the reset spring (44) is fixedly connected to the inner wall of the storage cavity.

7. A fluorescence detection device according to claim 6, characterized in that: The protective plate (42) has several linkage grooves (45) on the bottom side near the detection chamber body (21), and the protective plate (42) is engaged with the transmission component (5) through the linkage grooves (45).

8. A fluorescence detection device according to claim 7, characterized in that: The transmission assembly (5) includes a linkage belt (51) disposed at the bottom of the base assembly (31) and not in contact with the detection device (1). One end of the linkage belt (51) is connected to a transmission shaft (52) fixedly connected to the bottom of one of the transmission rollers (34). The other end of the linkage belt (51) is rotatably connected to a transmission gear (53). The top of the transmission gear (53) is rotatably connected to the bottom of the base (311) through a bearing. The outer surface of the transmission gear (53) meshes with the linkage tooth groove (45).

9. A fluorescence detection device according to claim 1, characterized in that: The upper part of the front of the detection device (1) is a slope, and a handrail (8) is provided at the lower end of the slope. The operation component is provided on the slope and above the handrail (8). The operation component includes a display (6) and an operation panel (7). The detection control component is provided inside the detection device (1). The detector (36) transmits signals to the detection control component. The display (6) and the operation panel (7) are electrically connected to the detection control component.