Reagent card clamping device of medical fluorescence detection analytical instrument
The clamping device, which combines guide rollers and clamping rollers, solves the problems of high friction and uneven clamping of reagent cards, achieving stable clamping of reagent cards and versatility of the device, thus improving ease of operation and testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-17
AI Technical Summary
Existing reagent card clamping methods result in high friction, uneven clamping leading to jamming, and custom-designed clamping mechanisms increase manufacturing costs and are difficult to be compatible with various reagent card widths.
The clamping device, which combines guide rollers and clamping rollers, uses the guide rollers to guide the reagent card and the clamping rollers to apply pressure, and utilizes the cooperation of connecting rods and springs to achieve stable clamping of the reagent card.
This avoids the problem of reagent cards becoming misaligned during use, improves the versatility and ease of operation of the device, and ensures the stability of the reagent cards and the smooth progress of the test.
Smart Images
Figure CN224005108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a medical test reagent card clamping device, and in particular to a reagent card clamping device for a dry fluorescence immunoassay analyzer. Background Technology
[0002] In medical testing, especially in fluorescence detection and analysis instruments, reagent cards serve as the sample carriers. The reagent card is inserted into the instrument, where it is detected by the corresponding optical module. The interaction between the reagent card and the instrument is achieved through a reagent card clamping mechanism. The clamping accuracy of the clamping mechanism directly affects the detection accuracy. Currently, reagent cards are typically clamped using spring clips or the deformation of the card holder material itself. This type of clamping method can lead to the reagent card jamming due to high friction between the reagent card and the spring clip mechanism, or uneven force and misalignment, causing inconvenience to the detection process. Furthermore, with the wide variety of reagent cards available, customizing a clamping mechanism for each type would obviously increase manufacturing costs. Therefore, a clamping mechanism compatible with reagent cards of various widths is particularly important. Summary of the Invention
[0003] The purpose of this invention is to provide a reagent card clamping device for medical fluorescence detection and analysis instruments. By increasing the width of the reagent card during insertion, positioning, and unloading, this invention not only avoids potential card misalignment during use but also improves the device's versatility and ease of operation, ensuring the stability of the reagent card and guaranteeing the smooth progress of the detection process.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A reagent card clamping device for a medical fluorescence detection and analysis instrument includes a reagent card, a guide roller holder, a clamping roller holder, and a supporting base plate; a clamping connecting rod and a second clamping connecting rod are hollow, with springs installed inside, and the two ends of the springs connected by screws; a guide roller cooperates with a guide wheel shaft; the guide roller and guide wheel shaft are assembled as a whole with the guide roller holder, and the shaft ends are locked with screws; the clamping roller, clamping connecting rod, connecting rod shaft, retraction spring, and second clamping connecting rod are assembled and then assembled with the clamping roller holder; the guide roller holder, the clamping roller holder, and the supporting base plate are locked with screws.
[0006] The reagent card clamping device of the medical fluorescence detection and analysis instrument, wherein when the reagent card is not inserted into the clamping mechanism, the side wall of the reagent card is in contact with the foremost guide roller, and the reagent card is pushed forward under the guidance of the guide roller.
[0007] The reagent card clamping device of the medical fluorescence detection and analysis instrument is described above. The clamping roller squeezes the reagent card, and the squeezing force is transmitted through the clamping roller to the clamping connecting rod and the second clamping connecting rod, and the two connecting rods are opened by the force.
[0008] The reagent card clamping device of the medical fluorescence detection and analysis instrument is described above, wherein the connecting rod opens and the compression spring is stretched, the connecting rod contacts the roller, and the reagent card is clamped and fixed.
[0009] The reagent card clamping device of the medical fluorescence detection analyzer is described above, wherein the reagent card is clamped to the connecting rod and the reagent card is in a straight line.
[0010] The reagent card clamping device of the medical fluorescence detection and analysis instrument, wherein the clamping roller connecting rod corresponds to the width of the reagent card.
[0011] The advantages of this utility model are:
[0012] This utility model, through its design that increases the width range of the reagent card at every stage of its movement—from insertion and positioning to unloading—not only avoids potential card misalignment during use but also enhances the device's versatility and ease of operation. Every step is designed to ensure the stability of the reagent card. This comprehensive design philosophy results in excellent performance in practical operation, improving ease of use and ensuring smooth testing processes, providing users of automated laboratory equipment with a more reliable and efficient user experience. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure assembly of this utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure assembly of this utility model;
[0015] Figure 3 This is a schematic diagram of the clamping linkage assembly of this utility model;
[0016] Figure 4 This is a schematic diagram of the clamping roller structure of this utility model. Detailed Implementation
[0017] The technical solution of this utility model will be further described in detail below with reference to the embodiments in the accompanying drawings.
[0018] like Figures 1-4As shown, the reagent card clamping device of the fluorescence detection and analysis instrument of this utility model includes a reagent card 1, a guide roller holder 2, a clamping roller holder 3, a support base plate 4, a guide roller 5, a guide wheel shaft 6, a clamping roller 7, a clamping connecting rod 8, a connecting rod wheel shaft 9, a retraction spring 10, a second clamping connecting rod 11, and a guide groove 31.
[0019] Its structural assembly relationship is as follows:
[0020] like Figure 1 As shown, the guide roller holder 2 and the clamping roller holder 3 are then installed with the support base plate 4 and locked with screws.
[0021] The guide roller holder 2 and the clamping roller holder 3 are fixed to the upper end of the support base plate 4 by screws. The distance between the guide roller holder 2 and the clamping roller holder 3 is such that when the reagent card 1 is fully inserted into the clamping mechanism, there is still space in the guide groove 31 so that the connecting rod wheel shaft 9 located in the guide groove 31 can move in a direction parallel to the outer edge of the clamping roller holder 3. The reagent card 1 is inserted in the middle position between the guide roller holder 2 and the clamping roller holder 3.
[0022] After the clamping roller 7, clamping link 8, link wheel axle 9, retraction spring 10, and second clamping link 11 are installed, they are assembled with the clamping roller holder 3. The clamping roller 7 is where the clamping roller holder 3 contacts the reagent card. The clamping link 8 is located near the inside and connected to the clamping roller 7. The second clamping link 11 is located near the outside and connected to the clamping roller 7. The clamping link 8 and the second clamping link 11 are connected together through the link wheel axle 9 and the retraction spring 10.
[0023] The clamping link 8 and the second clamping link 11 are connected together by the link wheel axle 9. The clamping link 8 and the second clamping link 11 are respectively provided with the fixing rod of the contraction spring 10. The contraction spring 10 is tightened by the fixing rod. The link wheel axle 9, which is away from the clamping link 8 and the second clamping link 11, is fixed in the guide groove 31.
[0024] The guide roller holder 2 is composed of seven guide rollers 5 and seven corresponding guide wheel shafts 6. The guide roller holder 2 is provided with holes for the guide wheel shafts 6. The two ends of the seven guide wheel shafts 6 are first fixed to the corresponding holes in the guide roller holder 2. The size of the holes is the same as that of the guide wheel shafts 6, so that the seven guide wheel shafts 6 and the corresponding holes in the guide roller holder 2 do not rotate relative to each other. The guide rollers 5 are fixed on the guide wheel shafts 6.
[0025] The clamping roller 7 has a bearing inside. The outer diameter of the bearing is the inner diameter of the clamping roller 7. The inner diameter of the bearing is the outer diameter of the connecting rod wheel axle 9 that connects the clamping connecting rod 8 and the second clamping connecting rod 11.
[0026] like Figure 2As shown, clamping link 8 and second clamping link 11 are hollow structures used to assemble the spring and provide space for the spring to move. The two ends of the retractable spring are connected by screws.
[0027] The guide roller 5 is installed in conjunction with the guide wheel shaft 6, and the roller rotates around the shaft. After the guide roller 5 and the guide wheel shaft 6 are installed, the whole assembly is installed with the guide roller bracket 2, and the shaft end can be locked with screws.
[0028] After the clamping roller 7, clamping link 8, link wheel axle 9, retraction spring 10, and second clamping link 11 are installed, they are assembled with the clamping roller holder 3.
[0029] like Figure 4 As shown, when the reagent card is not inserted into the clamping mechanism, the side wall of the reagent card first contacts the foremost guide roller, the contraction spring 10 contracts, and the connecting rod wheel shaft 9 is at the end of the guide groove 31. At this time, the distance between the clamping roller 7 and the guide roller 5 is the smallest.
[0030] During operation, before the reagent card is inserted into the clamping mechanism, the side wall of the reagent card first contacts the foremost guide roller. Guided by the guide roller, the reagent card is pushed forward, ensuring its straightness and preventing skewing. As the reagent card continues to move forward, its front end contacts the clamping roller, applying additional force. The clamping roller 7 receives the squeezing force from the reagent card, which is transmitted through the clamping roller to clamping linkage 1 and clamping linkage 2. The two linkages open under the force, increasing the opening angle. Simultaneously, the compression spring is stretched, providing tension to the two linkages. This force is transmitted to the roller, and then acts on the reagent card, providing clamping force and thus securing the reagent card.
Claims
1. A reagent card clamping device of a medical fluorescent detection analysis instrument, characterized in that, The device comprises a reagent card (1), a guide roller card holder (2), a clamping roller card holder (3), a supporting bottom plate (4), a clamping connecting rod (8), and a second clamping connecting rod (11) which are hollow and have springs assembled therein, with the two ends of the springs being connected by screws; the guide roller (5) cooperates with the guide wheel shaft (6); the guide roller (5) and the guide wheel shaft (6) are assembled with the guide roller card holder (2) as a whole, with the shaft ends being locked by screws; the clamping roller (7), the clamping connecting rod (8), the connecting rod wheel shaft (9), the contraction spring (10), and the second clamping connecting rod (11) are assembled and then assembled with the clamping roller card holder (3); the guide roller card holder (2) and the clamping roller card holder (3) are locked by screws with the supporting bottom plate (4).
2. The reagent card clamping device of a medical fluorescent detection analysis instrument according to claim 1, characterized in that, When the reagent card is not inserted into the clamping mechanism, the side wall of the reagent card is in contact with the frontmost guide roller, and the reagent card is pushed forward under the guidance of the guide roller.
3. The reagent card clamping device of a medical fluorescence detection analysis instrument according to claim 1, characterized in that, The clamping roller (7) is extruded by the reagent card, and the extrusion force is transmitted to the clamping connecting rod (8) and the second clamping connecting rod (11) through the clamping roller, and the two connecting rods are opened under the force.
4. The reagent card clamping device of a medical fluorescent detection analysis instrument according to claim 1, characterized in that, The compression spring of the connecting rod is stretched, the connecting rod is in contact with the roller, and the reagent card is clamped and fixed.
5. The reagent card clamping device of a medical fluorescent detection analysis instrument according to claim 1, characterized in that, The reagent card is clamped by the connecting rod, and the reagent card is in a straight line.
6. The reagent card clamping device of a medical fluorescent detection analysis instrument according to claim 1, characterized in that, The clamping roller connecting rod corresponds to the width of the reagent card.