Interpretation mechanism

Abstract

The utility model discloses an interpretation mechanism, relates to detection equipment technical field, wherein the interpretation mechanism includes: photoelectric detection unit and shading unit, photoelectric detection unit is provided with detection end, shading unit includes first drive component, shading frame, and shading cavity and baffle plate that are provided in shading frame, shading cavity is provided with first channel, and shading cavity is provided with second channel. The first driving assembly can drive the shielding plate to close and open the first channel, and the detection end is arranged in the shading cavity and corresponds to the first channel; and the second driving assembly enables the first through hole and the first channel to be coaxial, a first temporary shading channel is formed between the first through hole and the first channel, and meanwhile the first channel is opened by the shading plate. According to the technical scheme provided by the utility model, the problem that the shading effect is poor when the existing interpretation mechanism is used can be solved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a reading mechanism. Background Technology

[0002] In automated chemiluminescence detection instruments, an interpretation mechanism is usually required. The interpretation mechanism usually includes a PMT (photomultiplier tube). During use, the PMT structure needs to be strictly shielded from light because there is ambient light (laboratory lights, screen light) during the experiment. Ambient light will be directly amplified by the PMT, forming background noise and masking the true signal.

[0003] Existing interpretation mechanisms suffer from poor light-blocking performance during use. Utility Model Content

[0004] The main purpose of this invention is to propose a reading mechanism that aims to solve the problem of poor light-blocking effect in the use of existing reading mechanisms.

[0005] To achieve the above objectives, the interpretation mechanism proposed in this utility model includes:

[0006] The device includes a photoelectric detection unit and a light-shielding unit. The photoelectric detection unit is equipped with a detection end. The light-shielding unit includes a first driving component, a light-shielding frame, a light-shielding cavity disposed on the light-shielding frame, and a baffle plate. The light-shielding cavity is provided with a first channel. The first driving component can drive the baffle plate to close and open the first channel. When the baffle plate opens the first channel, the baffle plate and the light-shielding frame form a second temporary light-shielding channel. The detection end is disposed in the light-shielding cavity and corresponds to the first channel.

[0007] The placement rack and the second driving assembly are provided. The placement rack has a storage position for storing the reaction container and a first through hole for the light signal generated by the reaction container to pass through. The detection end is capable of receiving the light signal generated by the reaction container. The second driving assembly drives the placement rack to move along a first direction so that the first through hole is coaxial with the first channel, and at the same time the baffle opens the first channel.

[0008] In one embodiment, the first driving assembly includes a driving part disposed on the placement frame, a driven part disposed on the baffle plate, and an elastic element connected to the baffle plate;

[0009] When the placement rack moves along the first direction, the driving part can push against the driven part to open the first channel with the baffle plate, and the elastic element deforms at the same time; when the placement rack returns to its original position, the driving part and the driven part are disengaged, the elastic element restores its deformation, and drives the baffle plate to close the first channel.

[0010] In one embodiment, the light-shielding frame includes a first mounting base with a cylindrical structure, both ends of which are open. The interior of the mounting base is configured as the light-shielding cavity. At least a portion of the photoelectric detection unit is disposed in the light-shielding cavity, wherein the outer side of the photoelectric detection unit is in contact with the inner wall of the light-shielding cavity. One end of the first mounting base is detachably connected to a first plate, and the first channel is disposed in the first plate.

[0011] In one embodiment, the first mounting base is formed by splicing together multiple mounting plates.

[0012] In one embodiment, the light-shielding frame further includes a second plate, which is connected to the first plate. Both the first plate and the second plate are provided with second through holes, and the two second through holes are arranged coaxially. The first channel includes the two second through holes and a gap section between the two second through holes.

[0013] The shielding plate is disposed between the first plate and the second plate, and the second temporary light-shielding channel is disposed between the first plate and the second plate. The shielding plate fully opens the first channel, and the second temporary light-shielding channel can block the gap.

[0014] In one embodiment, the first driving component further includes a limiting portion, and the elastic element is capable of driving the baffle plate to abut against the limiting portion so that the baffle plate closes the first channel.

[0015] In one embodiment, when the shield fully opens the first channel, the shield, the limiting part, the first plate, and the second plate can surround and form the second temporary light-shielding channel.

[0016] In one embodiment, the shield is rotatably connected to the light-shielding frame, and the elastic element is configured as a torsion spring, which is mounted on the light-shielding frame and connected to the shield.

[0017] In one embodiment, a first temporary light-shielding channel can be formed between the first through hole and the first channel.

[0018] In one embodiment, the outer side of the light-shielding frame is provided with a first protrusion extending in a first direction, and two of the first protrusions are arranged in a stacked manner on both sides of the first channel;

[0019] The placement frame is provided with a second protrusion extending along a second direction, which is perpendicular to the first direction. Two second protrusions are arranged on both sides of the first through hole. When the first channel is coaxial with the first through hole, the two first protrusions and the two second protrusions can surround and form the first temporary light-shielding channel.

[0020] In one embodiment, the photoelectric detection unit includes a photoelectric sensor (PMT) and a housing, wherein the PMT is mounted on the housing.

[0021] And / or, the second driving component includes a motor, a guide rail, a slider, and a transmission component, the placement frame is mounted on the slider, the guide rail extends along a first direction, the slider is disposed on the guide rail, and the motor drives the slider through the transmission component.

[0022] In one embodiment, multiple storage positions and multiple first through holes are configured, and each is provided in a one-to-one correspondence.

[0023] The multiple storage positions and the first through hole are arranged along the first direction.

[0024] The technical solution of this utility model adopts a second temporary light-shielding channel and a shield. When the judgment mechanism is not working, the shield can close the first channel, so that the photoelectric detection unit is not affected by ambient light. When the judgment mechanism is working, the second temporary light-shielding channel can reduce the possibility of ambient light entering the first channel, reduce the impact of ambient light on the photoelectric detection unit, improve the light-shielding effect, and thus solve the technical problems existing in the prior art. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of an embodiment of the interpretation mechanism provided by this utility model;

[0027] Figure 2 A schematic diagram of another embodiment of the first mounting base of the judgment mechanism provided by this utility model;

[0028] Figure 3 A schematic diagram of another embodiment of the second temporary light-shielding channel in the interpretation mechanism provided by this utility model;

[0029] Figure 4 for Figure 1 A schematic diagram of the photoelectric detection unit and the light-shielding unit in the interpretation mechanism;

[0030] Figure 5 for Figure 4 An explosion diagram;

[0031] Figure 6 for Figure 1 A schematic diagram of the structure of the rack in the interpretation mechanism;

[0032] Figure 7 for Figure 1 A schematic diagram of the first temporary light-shielding channel in the interpretation mechanism;

[0033] Figure 8 for Figure 1 A schematic diagram of the second temporary light-shielding channel in the interpretation mechanism;

[0034] Figure 9 for Figure 1 A structural diagram of the interpretation mechanism from another perspective.

[0035] Explanation of icon numbers:

[0036] 100. Base; 110. Through hole;

[0037] 200. Photoelectric detection unit; 210. Housing; 220. Detection end;

[0038] 300, Light-shielding unit; 310, First drive assembly; 311, Drive unit; 312, Driven unit; 313, Elastic element; 314, Limiting unit; 320, Light-shielding frame; 321, First mounting base; 322, First plate; 323, Second plate; 330, Light-shielding cavity; 340, Shielding plate; 350, First channel; 351, Second through hole; 360, Second temporary light-shielding channel; 361, Shielding part; 370, Second mounting base;

[0039] 400, shelf; 410, storage location; 420, first through hole;

[0040] 500. Second drive assembly; 510. Motor; 520. Guide rail; 530. Slider; 540. Transmission component; 541. Synchronous pulley; 540. Synchronous belt;

[0041] 600, First temporary shading passage; 610, First protrusion; 620, Second protrusion.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0044] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] This utility model proposes a reading mechanism.

[0047] Please see Figures 1-5 In one embodiment of this utility model, the judging mechanism includes:

[0048] The photoelectric detection unit 200 and the light-shielding unit 300 are provided. The photoelectric detection unit 200 is provided with a detection end 220. The light-shielding unit 300 includes a first driving component 310, a light-shielding frame 320, a light-shielding cavity 330 disposed on the light-shielding frame 320, and a baffle plate 340. The light-shielding cavity 330 is provided with a first channel 350, wherein the first channel 350 can allow light signals to pass through. The light signal is the light signal emitted after the contents of the reaction vessel react (e.g., chemiluminescence signal, fluorescence signal, etc.). Further, the reaction vessel can be a test tube or a reaction cup, or other reaction vessel that allows light signals to pass through. In one embodiment, refer to... Figure 5The photoelectric detection unit 200 includes a PMT and a housing 210. The PMT is installed on the housing 210. Further, the housing 210 is configured as a prism structure, and the detection end 220 is located on the housing 210.

[0049] The first driving component 310 can drive the baffle 340 to close and open the first channel 350. Further, in some embodiments, the first driving component 310 can be an electric telescopic rod assembly (not shown in the figure), in which case the electric telescopic rod is connected to the baffle 340, and the extension and retraction of the electric telescopic rod drives the baffle 340 to reciprocate, thereby realizing the closing and opening of the first channel 350. Further, in some embodiments, the baffle 340 can be disposed at both ends of the first channel 350, or it can be disposed inside the first channel 350. It should be noted that in this case, the first channel 350 is configured as a through-hole structure formed on the light-shielding frame 320 (see...). Figure 2 or Figure 3 The two ends of the first channel 350 are the inlet and outlet of the through-hole structure, respectively. The interior of the first channel 350 refers to the area between the inlet and outlet of the through-hole structure.

[0050] When the shielding plate 340 opens the first channel 350, the shielding plate 340 and the light-shielding frame 320 form a second temporary light-shielding channel 360; further, in some embodiments, when the shielding plate 340 is disposed at both ends of the first channel 350, and the first drive assembly 310 adopts an electric telescopic rod assembly, the end of the first channel 350 is provided with a U-shaped shielding part 361 (see Figure 3The shield 361 is disposed on the light shielding frame 320, wherein the shield 340 is disposed in the U-shaped shielding part 361 and fits against the shielding part 361. When the first driving assembly 310 drives the shield 340 to move, the shield 340 can move in the shielding part 361. It should be noted that when the shield 340 opens the first channel 350, the shield 340 is not completely pulled out from the shielding part 361. At this time, the inner wall of the shielding part 361 and the periphery of the shield 340 can form a second temporary light shielding channel 360. In some embodiments, when the shielding plate 340 is disposed in the first channel 350 and the first drive assembly 310 is an electric telescopic rod assembly, both the electric telescopic rod and the shielding plate 340 are mounted on the light-shielding frame 320. The light-shielding frame 320 has a clearance groove (not shown in the figure) corresponding to the shielding plate 340. It should be noted that the shielding plate 340 and the first channel 350 can form an insertion relationship. Specifically, the first channel 350 is opened on the channel plate, and the shielding plate 340 is inserted into the channel plate. The first drive assembly 310 drives the shielding plate 340 to move. When 40 moves within the channel plate, the first channel 350 can be opened and closed by the baffle 340. It should be noted that the second temporary light-shielding channel 360 is constructed from the inner wall of the first channel 350 and the periphery of the baffle 340. It should also be noted that when the baffle 340 opens the first channel 350, the baffle 340 is not completely pulled out of the channel plate, and the baffle 340 and the channel plate have good fit. This can prevent ambient light from entering the light-shielding channel from the connection between the baffle 340 and the channel plate.

[0051] The detection end 220 is disposed in the light-shielding cavity 330 and corresponds to the first channel 350. It should be noted that the light signal emitted by the reaction vessel can pass through the first channel 350. Since the detection end 220 corresponds to the first channel 350, it can receive the light signal emitted by the reaction vessel. Furthermore, in this embodiment, the light-shielding cavity 330 can shield the detection end 220 to prevent it from being affected by ambient light. In some embodiments, only the detection end 220 may be disposed in the light-shielding cavity 330; that is, the light-shielding frame 320 covers the detection end 220. In this case, the light-shielding frame 320 can be in contact with the photoelectric detection unit 200 to ensure that the detection end 220 is in a light-shielded environment. In other embodiments, the photoelectric detection unit 200 can be entirely placed within the light-shielding cavity 330. In this case, the photoelectric detection unit 200 is entirely in a light-shielding environment. It should be noted that the baffle plate 340 can also be disposed within the light-shielding cavity 330. That is, the baffle plate 340 is disposed at the end of the first channel 350 furthest from the detection end 220. When the baffle plate 340 opens the first channel 350, the second temporary light-shielding channel 360 is formed by the periphery of the light-shielding cavity 330 and the baffle plate 340. In other embodiments, a portion of the structure of the photoelectric detection unit 200 (including the detection end 220) is disposed within the light-shielding cavity 330. In this case, the external structure of the photoelectric detection unit 200 has a high degree of fit with the inner wall of the light-shielding cavity 330, preventing ambient light from entering the detection end 220 from the connection between the external structure of the photoelectric detection unit 200 and the light-shielding cavity 330.

[0052] The placement rack 400 and the second drive assembly 500 are provided. The placement rack 400 is provided with a storage position 410 for storing the reaction container and a first through hole 420 for the light signal generated by the reaction container to pass through. It is understood that the reaction container can be placed in the placement rack 400, and the light signal generated in the reaction container can pass through the first through hole 420.

[0053] The second driving component 500 drives the placement rack 400 to move along a first direction, so that the first through hole 420 and the first channel 350 are coaxial. Further, in some embodiments, the second driving component 500 can be configured as a linear driving module, which drives the placement rack 400 to move along the first direction. When the placement rack 400 moves to the point where the first through hole 420 and the first channel 350 are coaxial, the light signal generated by the reaction vessel can be received by the detection end 220, and then the photoelectric detection unit 200 interprets the light signal. It should be noted that when the first through hole 420 and the first channel 350 are coaxial, the baffle plate 340 simultaneously opens the first channel 350. It should also be noted that in some embodiments, when the first through hole 420 and the first channel 350 are coaxial, the side of the placement rack 400 can fit against the light-shielding frame 320, thereby forming a first temporary light-shielding channel 600 between the first through hole 420 and the first channel 350.

[0054] The technical solution of this utility model adopts a second temporary light-shielding channel 360 and a shield 340. When the judgment mechanism is not working, the shield 340 can close the first channel 350, so that the photoelectric detection unit 200 is not affected by ambient light. When the judgment mechanism is working, the second temporary light-shielding channel 360 can reduce the possibility of ambient light entering the first channel 350, reduce the impact of ambient light on the photoelectric detection unit 200, improve the light-shielding effect, and thus solve the technical problems existing in the prior art.

[0055] In one embodiment, reference Figure 4 The first drive assembly 310 includes a drive portion 311 disposed on the placement rack 400 (see...). Figure 6The device includes a driven part 312 disposed on the baffle plate 340 and an elastic element 313 connected to the baffle plate 340. The elastic element 313 can drive the baffle plate 340 to abut against the limiting part 314, so that the baffle plate 340 closes the first channel 350. When the placement rack 400 moves along the first direction, the driving part 311 can push against the driven part 312, so that the baffle plate 340 opens the first channel 350, and the elastic element 313 deforms. When the placement rack 400 returns to its original position, the driving part 311 and the driven part 312 are disengaged, and the elastic element 313 restores its deformation, so as to drive the baffle plate 340 to close the first channel 350. It should be noted that when the driving part 311 is not in contact with the driven part 312, the elastic element 313 drives the baffle plate 340 to return to its original position. As the elastic potential energy of the elastic element 313 disappears, the baffle plate 340 can completely close the first channel 350. In some embodiments, the elastic element 313 can adopt a spring, torsion spring or other structure. The specific structure adopted can be selected according to the movement mode of the baffle plate 340. When the second driving assembly 500 drives the placement frame 400 to move in the first direction, the driving part 311 on the first placement frame 400 contacts the driven part 312 on the baffle plate 340. Then the driving part 311 pushes against the driven part 312, thereby pushing against the baffle plate 340. At this time, the baffle plate 340 overcomes the elastic force of the elastic element 313 and opens the first channel 350.

[0056] Furthermore, in some embodiments, reference is made to... Figure 5 The first driving component 310 also includes a limiting part 314. The elastic element 313 can drive the baffle plate 340 to abut against the limiting part 314, so that the baffle plate 340 closes the first channel 350. At this time, under the action of the limiting part 314, when the baffle plate 340 closes the first channel 350, the limiting part 314 can limit and block the baffle plate 340. At this time, when the elastic element 313 drives the baffle plate 340 to move toward the limiting part 314, the limiting part 314 can absorb part of the elastic potential energy, thereby reducing the possibility of the baffle plate 340 swinging back and forth.

[0057] In one embodiment, reference Figure 5 The light-shielding frame 320 includes a cylindrical first mounting base 321, both ends of which are open. It should be noted that when both ends of the first mounting base 321 are open, the first mounting base 321 adopts a cylindrical structure with open ends. Further, in some embodiments, refer to... Figure 5The first mounting base 321 is formed by splicing multiple mounting plates. Thus, a suitable mounting plate can be selected and spliced ​​together according to the outer contour structure of the photoelectric detection unit 200, further improving the fit between the first mounting base 321 and the photoelectric detection unit 200. However, this design is not limited to this; in some embodiments, the first mounting base 321 can also be an integrally formed cylindrical structure, etc. Furthermore, in some embodiments, the outer contour of the photoelectric detection unit 200 has a prismatic structure.

[0058] Furthermore, the first mounting base 321 is internally configured as the light-shielding cavity 330, and at least a portion of the photoelectric detection unit 200 is disposed in the light-shielding cavity 330. The outer side of the photoelectric detection unit 200 is in contact with the inner wall of the light-shielding cavity 330. One end of the first mounting base 321 is detachably connected to a first plate 322, wherein the first plate 322 is connected to the first mounting base 321 by screw fastening. The first channel 350 and the limiting part 314 are both disposed in the first plate 322. Thus, during assembly, the photoelectric detection unit 200 is installed inside... In the light-shielding cavity 330, the detection end 220 corresponds to the first channel 350, which facilitates the assembly of the light-shielding frame 320 and the photoelectric detection unit 200. The inner wall of the light-shielding cavity 330 is in contact with the outer side of the photoelectric detection unit 200, which means that the inner wall of the first mounting base 321 is in contact with the outer side of the photoelectric detection unit 200. This reduces the possibility of ambient light entering through the first mounting base 321 and the photoelectric detection unit 200. When the photoelectric detection unit 200 is installed in the first mounting base 321, the first plate 322 can be in contact with the outer side of the photoelectric detection unit 200. Further, in one embodiment, when the light-shielding frame 320 only includes the first mounting base 321 and the first plate 322, the shielding plate 340 is set at one end of the first channel 350, and the second temporary light-shielding channel 360 can be formed by the U-shaped shielding part 361 and the periphery of the shielding plate 340 in the above embodiment.

[0059] In one embodiment, reference Figure 4 , Figure 5The light-shielding frame 320 further includes a second plate 323 connected to the first plate 322. Both the first plate 322 and the second plate 323 have second through holes 351, which are coaxially arranged. The first channel 350 includes two second through holes 351 and a gap between them. Further, the shielding plate 340 is located between the first plate 322 and the second plate 323, and the second temporary light-shielding channel 360 is located between the first plate 322 and the second plate 323. It is understood that the baffle plate 340 is disposed in the first channel 350 at this time; in some embodiments, the second temporary light-shielding channel 360 can also be formed by the U-shaped structure of the above embodiment, the baffle portion 361 and the periphery of the baffle plate 340, specifically, the baffle plate 340 opens the first channel 350, and the periphery of the baffle plate 340 and the baffle portion 361 form the second temporary light-shielding channel 360, which can block the gap section; furthermore, the second plate 323 is connected to the first plate 322 by screw fastening.

[0060] In one embodiment, reference Figure 4 , Figure 5 The shielding plate 340 is rotatably connected to the light-shielding frame 320. The elastic element 313 is configured as a torsion spring. The elastic element 313 is installed on the light-shielding frame 320 and connected to the shielding plate 340. It should be noted that the light-shielding frame 320 is provided with a second mounting seat 370 for mounting the elastic element 313. The second mounting seat 370 is also provided with a rotating shaft. The second mounting seat 370 is fixed to the light-shielding frame 320. The shielding plate 340 is connected to the rotating shaft. At this time, the shielding plate 340 can rotate around the axis of the rotating shaft. One end of the elastic element 313 is connected to the shielding plate 340, that is, one end of the torsion spring is inserted into the shielding plate 340.

[0061] In one embodiment, reference Figure 1 , Figure 5 , Figure 8When the second driving assembly 500 drives the placement frame 400 to move along the first direction, the driving part 311 on the placement frame 400 drives the driven part 312 on the shielding plate 340, so that the shielding plate 340 fully opens the first channel 350. At this time, the shielding plate 340, the limiting part 314, the first plate 322, and the second plate 323 can close together to form the second temporary light-shielding channel 360. Further, the limiting part 314 is configured with an L-shaped structure, wherein when the first plate 322 and the second plate 323 are connected together, the limiting plate can fit against the first plate 322 and the second plate 323. In some embodiments, the limiting part 314 can be integrally formed with the first plate 322.

[0062] In some embodiments, a first temporary light-shielding channel 600 is formed between the first through hole 420 and the first channel 350; further, in some embodiments (not shown), when a second temporary light-shielding channel 360 is disposed at one end of the first channel 350 near the placement rack 400, the first temporary light-shielding channel 600 and the second temporary light-shielding channel 360 can be combined into a single temporary light-shielding channel; the first temporary light-shielding channel 600 includes a shielding portion 361, a shielding plate 340, and a [missing information - likely a component or element] disposed on [missing information - likely a location or component]. If the first through hole 420 is coaxial with the first channel 350, the light-shielding surface of the placement rack 400 can fit against the shielding part 361 and the shielding plate 340. At this time, the shielding plate 340 opens the first channel 350, and the shielding part 361, the light-shielding surface and the periphery of the shielding plate 340 can form a first temporary light-shielding channel 600. Under the action of the first temporary light-shielding channel 600, the ambient light entering the first channel 350 from between the placement rack 400 and the first channel 350 can be further reduced.

[0063] In one embodiment, Figure 5 , Figure 6 , Figure 7When the shielding plate 340 is disposed in the first channel 350, the first temporary light-shielding channel 600 can adopt the following structure: the outer side of the light-shielding frame 320 is provided with a first protrusion 610 extending in the first direction, and two of the first protrusions 610 are arranged in a stacked manner on both sides of the first channel 350; furthermore, in some embodiments, when the light-shielding frame 320 includes a first mounting base 321, a first plate 322, and a second plate 323, the first protrusion 610 is disposed on the second plate 323. The placement rack 400 is provided with a second protrusion 620 extending along a second direction, which is perpendicular to the first direction. Two second protrusions 620 are arranged on both sides of the first through hole 420. When the first channel 350 is coaxial with the first through hole 420, the two first protrusions 610 and the two second protrusions 620 can enclose and form the first temporary light-shielding channel 600. It should be noted that when the first through hole 420 is coaxial with the first channel 350, the two first protrusions 610 and the second protrusions 620 can enclose and form the first temporary light-shielding channel 600, and when the first... When the drive assembly 310 includes a drive unit 311, the drive unit 311 on the placement rack 400 can also drive the driven unit 312 provided on the baffle plate 340, so that the baffle plate 340 opens the first channel 350. It can be understood that at this time, the light signal in the reaction vessel can be received by the detection end 220 through the first through hole 420 and the first channel 350. Since the first through hole 420 and the first channel 350 are provided with a first temporary light-shielding channel 600, and the first channel 350 and the baffle plate 340 are provided with a second temporary light-shielding channel 360, the influence of ambient light on the detection end 220 can be reduced under the action of the light-shielding channel.

[0064] In one embodiment, reference Figure 9 The second driving component 500 includes a motor 510, a guide rail 520, a slider 530, and a transmission component 540. The placement frame 400 is mounted on the slider 530. The guide rail 520 extends along a first direction. The slider 530 is disposed on the guide rail 520. The motor 510 drives the slider 530 through the transmission component 540. Furthermore, in one embodiment, the judgment mechanism includes a base 100, a motor 510 and a guide rail 520 are both mounted on one side of the base, and a photoelectric detection unit 200 and a placement rack 400 are both mounted on the other side of the base. The base has a through hole 110 corresponding to the guide rail 520, and the slider 530 is mounted on the guide rail 520 through the through hole 110. Furthermore, the transmission component 540 includes a synchronous belt 542 and two synchronous pulleys 541, one of which is mounted on the motor 510 and the other is mounted on the base. The slider 530 is also connected to the synchronous belt 542. When the motor 510 rotates, it can drive the synchronous belt to rotate, thereby driving the slider 530 to move along the guide rail 520.

[0065] In one embodiment, reference Figure 1 The storage positions 410 and the first through holes 420 are configured in multiple ways and are set in a one-to-one correspondence. The multiple storage positions 410 and the first through holes 420 are arranged along the first direction. It should be noted that the multiple storage positions 410 are used to store multiple reaction containers. When the first temporary light-shielding channel 600 includes a first protrusion 610 and a second protrusion 620, the placement rack 400 is provided with multiple second protrusions 620. The multiple second protrusions 620 are arranged along the first direction, and a first through hole 420 is arranged between two adjacent second protrusions 620. When the placement rack 400 moves along the first direction, the multiple first through holes 420 can be coaxial with the first channel 350 in sequence. At this time, the detection end 220 can read the multiple reaction containers. It should be noted that in this embodiment, the driving part 311 on the placement rack 400 extends along the first direction. That is to say, when multiple reaction containers are read, the reaction container rack can move continuously. At this time, the driving part 311 drives the driven part 312, so that the baffle plate 340 keeps the first channel 350 in a normally open state. When the reading of multiple reaction containers is finished, the placement rack 400 returns to its original position. At this time, the driving part 311 does not push against the driven part 312. At this time, the baffle plate 340 abuts against the limiting part 314 under the action of the elastic element 313 and closes the first channel 350.

[0066] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A reading mechanism, characterized in that, include: The device includes a photoelectric detection unit and a light-shielding unit. The photoelectric detection unit is equipped with a detection end. The light-shielding unit includes a first driving component, a light-shielding frame, a light-shielding cavity disposed on the light-shielding frame, and a baffle plate. The light-shielding cavity is provided with a first channel. The first driving component can drive the baffle plate to close and open the first channel. When the baffle plate opens the first channel, the baffle plate and the light-shielding frame form a second temporary light-shielding channel. The detection end is disposed in the light-shielding cavity and corresponds to the first channel. The placement rack and the second driving assembly are provided. The placement rack has a storage position for storing the reaction container and a first through hole for the light signal generated by the reaction container to pass through. The detection end is capable of receiving the light signal generated by the reaction container. The second driving assembly drives the placement rack to move along a first direction so that the first through hole is coaxial with the first channel, and at the same time the baffle opens the first channel.

2. The interpretation mechanism as described in claim 1, characterized in that, The first driving assembly includes a driving part disposed on the placement frame, a driven part disposed on the baffle plate, and an elastic element connected to the baffle plate; When the placement rack moves along the first direction, the driving part can push against the driven part to open the first channel with the baffle, and at the same time the elastic element deforms. When the placement rack returns to its original position, the driving part and the driven part are disengaged, and the elastic element resumes its deformation to drive the baffle to close the first channel.

3. The interpretation mechanism as described in claim 2, characterized in that, The light-shielding frame includes a first mounting base with a cylindrical structure, both ends of which are open. The interior of the mounting base is configured as the light-shielding cavity. At least a portion of the photoelectric detection unit is disposed in the light-shielding cavity, wherein the outer side of the photoelectric detection unit is in contact with the inner wall of the light-shielding cavity. One end of the first mounting base is detachably connected to a first plate, and the first channel is disposed in the first plate.

4. The interpretation mechanism as described in claim 3, characterized in that, The first mounting base is formed by splicing together multiple mounting plates.

5. The interpretation mechanism as described in claim 3, characterized in that, The light-shielding frame also includes a second plate, which is connected to the first plate. Both the first plate and the second plate are provided with second through holes, and the two second through holes are arranged coaxially. The first channel includes two second through holes and a gap section between the two second through holes. The shielding plate is disposed between the first plate and the second plate, and the second temporary light-shielding channel is disposed between the first plate and the second plate. When the shielding plate fully opens the first channel, the second temporary light-shielding channel can block the gap.

6. The interpretation mechanism as described in claim 5, characterized in that, The first driving component further includes a limiting part, and the elastic element can drive the baffle plate to abut against the limiting part so that the baffle plate closes the first channel.

7. The interpretation mechanism as described in claim 6, characterized in that, When the shielding plate fully opens the first channel, the shielding plate, the limiting part, the first plate body, and the second plate body can surround and form the second temporary light-shielding channel.

8. The interpretation mechanism as described in claim 2, characterized in that, The shielding plate is rotatably connected to the light-shielding frame, and the elastic element is configured as a torsion spring. The elastic element is installed on the light-shielding frame and connected to the shielding plate.

9. The interpretation mechanism as described in claim 1, characterized in that, A first temporary light-shielding channel can be formed between the first through hole and the first channel.

10. The interpretation mechanism as described in claim 9, characterized in that, The light-shielding frame has a first protrusion extending in a first direction on its outer side. Two of the first protrusions are arranged in a stacked manner on both sides of the first channel. The placement frame is provided with a second protrusion extending along a second direction, which is perpendicular to the first direction. Two second protrusions are arranged on both sides of the first through hole. When the first channel is coaxial with the first through hole, the two first protrusions and the two second protrusions can surround and form the first temporary light-shielding channel.

11. The interpretation mechanism as described in claim 1, characterized in that, The photoelectric detection unit includes a PMT and a housing, wherein the PMT is mounted on the housing. And / or, the second driving component includes a motor, a guide rail, a slider, and a transmission component, the placement frame is mounted on the slider, the guide rail extends along a first direction, the slider is disposed on the guide rail, and the motor drives the slider through the transmission component.

12. The interpretation mechanism as described in any one of claims 1 to 11, characterized in that, The storage positions and the first through holes are configured in multiple ways, and are set in a one-to-one correspondence. The multiple storage positions and the first through hole are arranged along the first direction.

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