Light detection device of chemiluminescence immunity analyzer

Abstract

The embodiment of the utility model discloses a light detection device of a chemiluminescence immunoassay analyzer, relates to the technical field of chemiluminescence immunoassay detection, and aims to solve the problem of exposure of a photometric measurement assembly of the light detection device. The light detection device of the chemiluminescence immunity analyzer comprises a black box, the black box comprises a black box body, the black box body is provided with a slot, a luminosity detection opening and a cup placing groove, the slot is located above the cup placing groove, and the luminosity detection opening is communicated with the cup placing groove; the luminosity measurement assembly is connected to the black box corresponding to the luminosity detection port; the black box further comprises a black box cover, the black box cover comprises a cover plate and a shutter, the cover plate is connected with the shutter, and the cover plate is inserted in the inserting groove and can move along the inserting groove. The embodiment of the utility model is suitable for the light detection device of the chemiluminescence immunity analyzer with the photometric measurement assembly.

Description

Technical Field

[0001] The invention relates to the technical field of chemiluminescent immunoassay detection, and in particular to a light detection device of a chemiluminescent immunoassay analyzer. Background Art

[0002] The chemiluminescent immunoassay analyzer uses the luminescence of the substance to be detected, detects and counts the photons released by the chemiluminescent reaction, and converts it into the concentration of the substance to be detected, thereby accurately quantifying the content of the substance to be detected and determining the test results. In the early stage of the detection process, reagents and substrates need to be added to the sample to be tested, and in the later stage of the detection process, the luminescent substance needs to be detected. The detection process is usually carried out in a light-tight black box. However, the photometric measurement components of existing light detection devices are easily exposed, resulting in inaccurate test results. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a light detection device for a chemiluminescent immunoassay analyzer, which can reduce the risk of exposure of its photometric measurement component.

[0004] An embodiment of the present invention provides a light detection device of a chemiluminescent immunoassay analyzer, comprising: a black box, wherein the black box comprises a black box body and a black box cover; the black box body has a slot, a photometric detection port and a cup placement slot, wherein the slot is located above the cup placement slot, and the photometric detection port is communicated with the cup placement slot; the black box cover comprises a cover plate and a shutter, wherein the cover plate is connected to the shutter; the cover plate is inserted in the slot and can move along the slot; a photometric measurement component, wherein the photometric measurement component is connected to the black box body corresponding to the photometric detection port; a support, wherein the black box body is fixed to the support; the black box cover is moved along a first direction, wherein at least a portion of the cover plate extends from the slot to expose the entrance of the cup placement slot, and the shutter blocks the photometric detection port; the black box cover is moved along a second direction, wherein the cover plate is reset in the slot and blocks the entrance of the cup placement slot, and the shutter leaves the photometric detection port; the second direction of movement is a direction opposite to the first direction.

[0005] According to a specific implementation of the present invention, the side wall of the cup placing groove is provided with an opening, and the photometric detection port corresponds to the opening.

[0006] According to a specific implementation of the present invention, the black box body includes a black box shell and a black box side panel, the photometry detection port is arranged on the black box side panel, and the black box side panel is fixedly connected to the black box shell; the photometry measurement component is connected to the black box side panel relative to the photometry detection port.

[0007] According to a specific implementation of the present invention, a guide structure is provided between the black box side plate and the black box housing along the moving direction of the cover plate, and the shutter cooperates with the guide structure.

[0008] According to a specific implementation of the present invention, a groove is provided on the outer side wall of the black box side plate, and the photometric detection port is provided in the groove; and the connection position between the photometric measurement component and the black box side plate is located in the groove.

[0009] According to a specific implementation of the present invention, an annular sealing groove is provided on one side of the photometric measurement component close to the black box side plate, a sealing member is provided in the annular sealing groove, and the sealing member is pressed around the photometric detection port.

[0010] According to a specific implementation of the present invention, it also includes a driving component and a transmission component, the input end of the transmission component is connected to the driving component, the output end is connected to the black box cover, and the movement direction of the output end of the transmission component is the same as the movement direction of the black box cover.

[0011] According to a specific implementation of the present invention, it also includes a control component, a sensor and a sensing component; the control component is electrically connected to the sensor and the driving component respectively; the sensing component is arranged on the transmission component or the black box cover; when the sensor detects the sensing component, a control signal is sent to the control component so that the control component controls the driving component to stop driving.

[0012] According to a specific implementation of the present invention, a substrate pin mounting hole is provided on the cover plate of the black box cover. When the cover plate is inserted into a predetermined position of the slot, the cover plate is located above the entrance of the cup placement slot, and the substrate pin mounting hole corresponds to the cup placement slot.

[0013] According to a specific implementation of the present invention, a cofferdam is formed on a surface of the cover plate of the black box cover away from the cup placing groove, and the cofferdam corresponds to the side wall of the slot.

[0014] The light detection device of the chemiluminescent immunoassay analyzer provided in the embodiment of the present invention comprises a black box, a photometric measurement component and a black box cover, wherein the black box comprises a black box body, a slot and a photometric detection port are arranged on the black box body, a cup placement slot is arranged in the black box body, the slot is located above the cup placement slot, the photometric detection port is connected to the cup placement slot, and the photometric measurement component is connected to the black box corresponding to the photometric detection port; the black box cover comprises a cover plate and a shutter, the cover plate is connected to the shutter; the cover plate is inserted in the slot and can move along the slot; the black box cover is moved along the second direction, the cover plate is reset in the slot and covers the The entrance of the cup placing groove is blocked, and the shutter leaves the photometric detection port; in this way, the photometric measurement component can observe the situation in the cup placing groove through the photometric detection port, so as to measure the photometric of the reagent placed in the cup placing groove; the black box cover is moved along the first direction, at least part of the cover plate extends from the slot to expose the entrance of the cup placing groove, the shutter blocks the photometric detection port, and the second direction is moved in the direction opposite to the first direction; in this way, it can be prevented that light passes through the cup placing groove through the photometric detection port to irradiate the photometric measurement component, and the risk of exposure of the photometric measurement component can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional exploded view of an embodiment of a light detection device of a chemiluminescent immunoassay analyzer of the present invention;

[0017] Figure 2 It is a schematic structural diagram of a black box cover of an embodiment of a light detection device of a chemiluminescent immunoassay analyzer of the present invention;

[0018] Figure 3 It is a schematic structural diagram of a black box body of an embodiment of a light detection device of a chemiluminescent immunoassay analyzer of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the photometric measurement component of one embodiment of the light detection device of the chemiluminescent immunoassay analyzer of the present invention. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] It should be clear that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The light detection device of the chemiluminescent immunoassay analyzer provided in the embodiment of the present invention can reduce the risk of exposure of the photometric measurement component of the light detection device during use.

[0023] The following combination Figures 1 to 4 , the implementation modes of the present invention are further described.

[0024] Figure 1 FIG. 1 is a schematic diagram showing a structure of an embodiment of a light detection device of a chemiluminescent immunoassay analyzer of the present invention. Figure 1 As shown, the light detection device of the chemiluminescent immunoassay analyzer of this embodiment may include a black box and a photometric measurement component.

[0025] Among them, the black box can be used to place the reaction cup. The reaction cup is generally transparent and used to hold reagents. The reagents in the reaction cup can emit light by chemiluminescence. The black box means that the light source other than the reagents in the black box is close to zero. The black box can also be called a dense light box, a light-proof box, etc.

[0026] The black box includes a black box body 110, and the black box body 110 may be exemplarily in the shape of a cube. The black box body 110 is a frame structure of the light detection device, and may be used to install various functional components of the light detection device. The black box body 110 has a slot 113, a photometric detection port 114, and a cup placement slot 115, wherein the slot 113 is located above the cup placement slot 115, and the photometric detection port 114 is connected to the cup placement slot 115; the photometric measurement component 2 is connected to the black box body 110 corresponding to the photometric detection port 114. Exemplarily, the photometric measurement component 2 may be a photometer, and the photometer may be mounted on the black box body 110 via a photometer support 202 (see Figure 1 and Figure 4 ).

[0027] The chemiluminescent immunoassay analyzer can utilize the luminescence of the detected reagent to detect and count the photons released by the chemiluminescent reaction, convert it into the concentration of the detected substance, thereby accurately quantifying the content of the detected substance and determining the test result. The detected substance can be placed in a reaction cup, and the cup placement groove 115 can be used to place the reaction cup containing the reagent. In this way, when the reagent emits light by chemiluminescence, the photometric measurement component 2 can measure through the photometric detection port 114.

[0028] See also Figure 2As shown, the black box also includes a black box cover 120, and the black box cover 120 includes a cover plate 121 and a shutter 122, and the cover plate 121 is connected to the shutter 122. Among them, the shutter 122 of the black box cover 120 is opaque. Exemplarily, the cover plate 121 and the shutter 122 of the black box cover 120 can be integrally formed.

[0029] The cover plate 121 is inserted into the slot 113 and can move along the slot 113, so that the entrance of the cup placing groove 115 can be exposed or blocked. Specifically, the black box cover 120 is moved along the first direction, at least part of the cover plate 121 extends from the slot 113, exposing the entrance of the cup placing groove 115, and the shutter 122 blocks the photometric detection port 114; the black box cover 120 is moved along the second direction, the cover plate 121 is reset in the slot 113 and blocks the entrance of the cup placing groove 115, and the shutter 122 leaves the photometric detection port 114; the second direction movement is the direction opposite to the first direction. The movement of the cover plate 121 along the first direction and the movement of the second direction can be referred to as the opening and closing movement of the cover plate 121. The exemplary first direction can be the left side, and the second direction can be the right side.

[0030] The light detection device of the chemiluminescent immunoassay analyzer provided in the embodiment of the present invention moves the black box cover 120 along the second direction, the cover plate 121 is reset in the slot 113 and blocks the entrance of the cup placing slot 115, and the shutter 122 leaves the photometric detection port 114; in this way, the photometric measurement component 2 can observe the situation in the cup placing slot 115 through the photometric detection port 114, so as to measure the photometric of the reagent placed in the cup placing slot 115; the black box cover 120 is moved along the first direction, at least part of the cover plate 121 extends from the slot 113 to expose the entrance of the cup placing slot 115, the shutter 122 blocks the photometric detection port 114, and the second direction is moved in the opposite direction to the first direction; in this way, it can be prevented that light passes through the cup placing slot 115 through the photometric detection port 114 to irradiate the photometric measurement component 2, and the risk of exposure of the photometric measurement component 2 can be reduced.

[0031] See also Figure 3 As shown, in order to facilitate the connection between the photometric detection port 114 and the cup placement groove 115, in some embodiments, the side wall of the cup placement groove 115 is provided with an opening, and the photometric detection port 114 corresponds to the opening. Exemplarily, the opening can be a rectangular opening, and the shape of the photometric detection port 114 can be the same as the shape of the opening.

[0032] See also Figure 3 As shown, to facilitate the disassembly and assembly of the black box body 110, in some embodiments, the black box body 110 includes a black box shell 111 and a black box side panel 112, a photometric detection port 114 is provided on the black box side panel 112, and the black box side panel 112 is fixedly connected to the black box shell 111; the photometric measurement component 2 is connected to the black box side panel 112 corresponding to the photometric detection port 114.

[0033] The black box housing 111 and the black box side plate 112 may be provided with connection holes opposite to each other, and the black box housing 111 and the black box side plate 112 may be fixedly connected by fasteners inserted in the connection holes. The photometric measurement component 2 and the black box housing 111 may be provided with connection holes opposite to each other, and the photometric measurement component 2 and the black box housing 111 may also be fixedly connected by fasteners inserted in the connection holes. The black box housing 111 and the black box side plate 112 are detachably fixedly connected, so that the black box body 110 can be easily disassembled by releasing the fixation between the black box housing 111 and the black box side plate 112.

[0034] See also Figure 3 As shown, in order to facilitate the sliding of the shutter 122 of the black box cover 120, a guide structure 116 is provided between the black box side plate 112 and the black box housing 111 along the moving direction of the cover plate 121, and the shutter 122 cooperates with the guide structure 116. In this way, the shutter 122 can conveniently slide along the guide structure 116. Among them, the guiding direction of the guide structure 116 is consistent with the moving direction of the cover plate 121 of the black box cover 120, and the guide structure 116 can be set as a guide rail or a sandwich.

[0035] In one embodiment, the guide structure 116 is a guide rail, and the shutter 122 is provided with a bending portion, and the bending portion of the shutter 122 cooperates with the guide rail, so that the shutter 122 can slide along the guide rail conveniently. Exemplarily, a slider can be provided on the side of the bending portion facing the guide rail, and the slider of the bending portion can be located in the guide rail.

[0036] In another embodiment, the guide structure 116 is a sandwich layer, and a slide groove can be provided at the bottom and / or top of the sandwich layer, and the bottom and / or top of the shutter 122 are provided in the slide groove, so that the shutter 122 and the guide structure 116 cooperate with each other, so that the bottom and / or top of the shutter 122 can slide along the slide groove of the sandwich layer. At the same time, the two sides of the shutter 122 can respectively abut against the two side walls of the sandwich layer, and when the shutter 122 slides along the sandwich layer, the side walls of the sandwich layer can prevent the shutter 122 from derailing from the guide structure 116.

[0037] See also Figure 3 As shown, in order to reduce the exposure risk of the photometric component 2, in some embodiments, a groove 117 is provided on the outer wall of the black box side panel 112, and the photometric detection port 114 is provided in the groove 117; the connection position between the photometric component 2 and the black box side panel 112 is in the groove 117, which can increase the difficulty of light passing through the connection position between the photometric component 2 and the black box side panel 112 and entering the photometric component 2, thereby reducing the exposure risk of the photometric component 2.

[0038] See also Figure 4As shown, in order to further reduce the exposure risk of the photometric component 2, in some embodiments, a ring-shaped sealing groove 201 is provided on one side of the photometric component 2 close to the black box side plate 112, and a sealing member is provided in the ring-shaped sealing groove 201, and the sealing member is pressed around the photometric detection port 114. The sealing groove 201 can not only support the sealing member, but also has a covering function. The sealing member can better cover the gap between the photometric component 2 and the photometric detection port 114, thereby reducing the exposure risk of the photometric component 2. The sealing member can be a sealing ring.

[0039] See also Figure 1 As shown, in order to facilitate the automatic opening and closing of the black box cover 120 of the light detection device, in some embodiments, the light detection device further includes a driving component 3 and a transmission component 4. The driving component 3 can be fixed on the black box body 110, the input end of the transmission component 4 is connected to the driving component 3, and the output end is connected to the black box cover 120; the movement direction of the output end of the transmission component 4 is the same as the movement direction of the black box cover 120. In this way, the driving component 3 can drive the input end of the transmission component 4 to move, the input end of the transmission component 4 can drive the transmission component 4 to move, the movement of the transmission component 4 can drive the output end of the transmission component 4 to move, and the output end of the transmission component 4 can drive the black box cover 120 to move.

[0040] The driving assembly 3 may be a driving motor, such as a stepping motor. For example, the output shaft of the driving motor may be telescopic, the input end of the transmission assembly 4 may be inserted into the output shaft of the driving motor and fixedly connected to the output shaft of the driving motor, the output end of the transmission assembly 4 and the cover plate 121 of the black box cover 120 may be provided with connecting holes relative to each other, and the output end of the transmission assembly 4 and the cover plate 121 of the black box cover 120 may be fixedly connected by a fastener inserted into the connecting hole.

[0041] Exemplarily, the drive assembly 3 may be arranged on one side of the black box cover 120, and in this case, the transmission assembly 4 needs to be provided with a bending portion. To reduce production costs, the transmission assembly 4 may include a first transmission portion 41 and a second transmission portion 42, and the fixed end of the first transmission portion 41 may be fixedly connected to the fixed end of the second transmission portion 42, the input end of the first transmission portion 41 is connected to the drive assembly 3, and the output end of the second transmission portion 42 is connected to the black box cover 120. Compared with the integral molding of the transmission assembly 4, splitting the transmission assembly 4 into the first transmission portion 41 and the second transmission portion 42 can reduce waste generated in the process of producing the transmission assembly 4, thereby reducing production costs.

[0042] See also Figure 1As shown, in order to facilitate determining whether the black box cover 120 moves to the preset position, in some embodiments, the light detection device further includes a control component, a sensor and a sensing member; the control component is electrically connected to the sensor and the driving component 3 respectively; the sensing member is arranged on the transmission component 4 or the black box cover 120; when the sensor detects the sensing member, a control signal is sent to the control component so that the control component controls the driving component 3 to stop driving. Among them, the detection position of the sensor can correspond to the position after the black box cover 120 is inserted into the slot 113. In other words, when the sensor detects the sensing member, the black box cover 120 is inserted into the slot 113 and blocks the entrance of the cup placement slot 115, and the shutter 122 leaves the photometric detection port 114.

[0043] Exemplarily, the driving component 3 may be a screw motor, the sensor may be arranged on the outside of the black box body 110 , and the induction component may be arranged on the transmission component 4 .

[0044] See also Figure 1 As shown, in order to improve the accuracy of the detection result of the light detection device, in some embodiments, the light detection device further includes a support 5, and the black box body 110 is fixed on the support 5. In this way, the light detection device can be fixed at a use position, such as a desktop, by the support 5, so as to avoid shaking of the light detection device during use, and improve the accuracy of the detection result of the light detection device.

[0045] Exemplarily, connection holes may be provided on the mounting base of the support 5 and at the use position, and the mounting base of the support 5 and the use position may be fixedly connected by fasteners in the connection holes.

[0046] See also Figure 2 As shown, the cup placement groove 115 of the optical detection device is used to place the reaction cup, and liquid can be injected into the reaction cup through the substrate needle 6. In order to facilitate the more uniform diffusion of the injected liquid in the reaction cup, in some embodiments, a substrate needle mounting hole 123 is provided on the cover plate 121 of the black box cover 120. When the cover plate 121 is inserted into the predetermined position of the slot 113, the cover plate 121 is located above the entrance of the cup placement groove 115, and the substrate needle mounting hole 123 corresponds to the cup placement groove 115, and is preferably coaxial.

[0047] The liquid injected into the substrate needle 6 can be a reactant or a catalytic substrate related to the chemical reaction with the reagent. The photometric measurement component 2 generally starts reading the light value before the reactant or catalytic substrate contacts the reagent to be tested, and ends the detection after the chemical reaction of the reagent is completed.

[0048] Exemplarily, the substrate needle 6 may include a substrate needle body and a substrate needle mounting seat. The substrate needle mounting seat and the cover plate 121 are provided with connecting holes opposite to each other. The substrate needle mounting seat and the cover plate 121 may be fixedly connected by fasteners in the connecting holes.

[0049] See also Figure 2 As shown, in order to further reduce the exposure risk of the photometric measurement component 2, in some embodiments, a cofferdam 124 is formed on the surface of the cover plate 121 of the black box cover 120 on the side away from the cup placement slot 115, and the cofferdam 124 corresponds to the side wall of the slot 113. This can increase the difficulty of light entering the cup placement slot 115 through the gap between the black box cover 120 and the side wall of the slot 113, and entering the photometric measurement component 2 through the photometric detection port 114 connected to the cup placement slot 115, thereby reducing the exposure risk of the photometric measurement component 2. Figure 1 As shown, at the same time, the cover plate 121 of the black box cover 120 is inserted into the slot 113, blocking the entrance of the cup placement slot 115, and when the shutter 122 leaves the photometric detection port 114, the cofferdam 124 can abut against the side wall of the slot 113, indicating that the cover plate 121 of the black box cover 120 has been inserted into the preset position of the slot 113. At this time, the cover plate 121 is located above the entrance of the cup placement slot 115, the substrate needle installation hole 123 is coaxial with the cup placement slot 115, and the substrate needle starts to inject liquid into the reaction cup.

[0050] Exemplarily, a sensor sheet may be provided at the side wall of the slot 113 abutting against the cofferdam 124 of the cover plate 121, and the control component is electrically connected to the sensor sheet and the drive component 3, respectively; when the sensor sheet detects that the cofferdam 124 of the cover plate 121 abuts against the sensor sheet, a control signal is sent to the control component so that the control component controls the drive component 3 to stop driving.

[0051] In some embodiments, the shutter 122 of the black box cover 120 may include a bending portion, and the setting position of the bending portion may be set based on the internal structure of the black box body 110. At the same time, the bending portion also has a guiding function, which can enhance the stability of the black box cover 120 moving along the first direction or the second direction.

[0052] In some embodiments, a cap is formed on one end of the cover plate 121 of the black box cover 120 away from the shutter 122, and a protrusion is provided on the end of the cap close to the cover plate 121. The protrusion is fixed to the side of the cover plate 121, which can increase the tightness of the connection between the cover plate 121 and the slot 113.

[0053] In some embodiments, after the light detection device completes the detection of the luminescence of the detected reagent, the black box cover 120 can be opened, and the reaction cup in the cup slot 115 of the light detection device can be taken away manually or by a robot.

[0054] The light detection device of the chemiluminescent immunoassay analyzer provided in the embodiment of the present invention can provide an independent light detection device to the chemiluminescent immunoassay analyzer for reading the detection result. The light detection device includes a black box body 110 and a black box cover 120. The black box body 110 is provided with a slot 113 and a cup placement slot 115. The slot 113 is located above the cup placement slot 115. The black box cover 120 includes a cover plate 121 and a shutter 122. The cover plate 121 is connected to the shutter 122. The black box cover 120 is moved along the second direction, the cover plate 121 is reset in the slot 113 and blocks the entrance of the cup placing slot 115, and the shutter 122 leaves the photometric detection port 114; in this way, the photometric measurement component 2 can observe the situation in the cup placing slot 115 through the photometric detection port 114, so as to be used to measure the photometric of the reagent placed in the cup placing slot 115; the black box cover 120 is moved along the first direction, at least part of the cover plate 121 extends from the slot 113 to expose the entrance of the cup placing slot 115, and the shutter 122 blocks the photometric detection port 114, and the second direction is moved in the opposite direction to the first direction; the cover plate 121 and the shutter are designed as an integrated unit, so that during the opening and closing process of the black box cover 120, the photometric measurement component 2 can be continuously isolated from other light sources, which can solve the problem that the photometric measurement component 2 is easily exposed and the detection result is inaccurate.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] Each embodiment in this specification is described in a related manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0057] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A light detection device for a chemiluminescent immunoassay analyzer, characterized in that: include: A black box, the black box comprising a black box body and a black box cover; the black box body having a slot, a photometric detection port and a cup placement slot, the slot being located above the cup placement slot, the photometric detection port being communicated with the cup placement slot; the black box cover comprising a cover plate and a shutter, the cover plate being connected with the shutter; the cover plate being inserted in the slot and being movable along the slot; A photometric measurement component, wherein the photometric measurement component is connected to the black box body corresponding to the photometric detection port; A support, on which the black box body is fixed; The black box cover is moved along a first direction, so that at least a portion of the cover plate extends out of the slot to expose the entrance of the cup placing slot, and the shutter blocks the photometric detection port; The black box cover is moved along the second direction, the cover plate is reset in the slot and blocks the entrance of the cup placing slot, and the shutter leaves the photometric detection port; the second direction of movement is opposite to the first direction.

2. The light detection device according to claim 1, characterized in that The side wall of the cup placing groove is provided with an opening, and the photometric detection port corresponds to the opening.

3. The light detection device according to claim 1, characterized in that The black box body comprises a black box shell and a black box side plate, the photometric detection port is arranged on the black box side plate, and the black box side plate is fixedly connected to the black box shell; the photometric measurement component is connected to the black box side plate corresponding to the photometric detection port.

4. The light detection device according to claim 3, characterized in that A guide structure is provided between the black box side plate and the black box housing along the moving direction of the cover plate, and the shutter cooperates with the guide structure.

5. The light detection device according to claim 3, characterized in that A groove is provided on the outer side wall of the black box side plate, and the photometric detection port is provided in the groove; The connection position between the photometric measurement component and the black box side plate is located in the groove.

6. The light detection device according to claim 5, characterized in that An annular sealing groove is provided on one side of the photometric measurement component close to the black box side plate, a sealing member is provided in the annular sealing groove, and the sealing member is pressed around the photometric detection port.

7. The light detection device according to claim 1, characterized in that It also includes a driving component and a transmission component, wherein the driving component is fixed on the black box body, the input end of the transmission component is connected to the driving component, and the output end is connected to the black box cover; the movement direction of the output end of the transmission component is the same as the movement direction of the black box cover.

8. The light detection device according to claim 7, characterized in that It also includes a control component, a sensor and an induction component; the control component is electrically connected to the sensor and the drive component respectively; The sensing element is arranged on the transmission component or the black box cover; when the sensor detects the sensing element, a control signal is sent to the control component so that the control component controls the driving component to stop driving.

9. The light detection device according to claim 1, characterized in that A substrate needle mounting hole is provided on the cover plate of the black box cover. When the cover plate is inserted into a predetermined position of the slot, the cover plate is located above the entrance of the cup placing groove, and the substrate needle mounting hole corresponds to the cup placing groove.

10. The light detection device according to claim 1, characterized in that A cofferdam is formed on the surface of the cover plate of the black box cover at a side away from the cup placing groove, and the cofferdam corresponds to the side wall of the slot.

Images