A PMT measuring and identifying device for chemiluminescence

Abstract

The utility model relates to reagent reaction luminescence intensity measurement technical field, especially in kind for chemiluminescence PMT measurement and identification device, including support frame, support frame fixedly connected with code scanning recognizer and PMT module, PMT module includes photon counter, and the front end of photon counter is provided with lens, and the outside of lens is provided with lens seat, and the lens exposes from the lens seat, lens seat includes inner ring baffle, and the inner side of lens is located in the inner ring baffle, and the outside of inner ring baffle is provided with outer ring baffle concentrically, and the annular clamping groove is formed between outer ring baffle and inner ring baffle, and the annular clamping groove is used for with reaction photometric position seamless joint. Compared with the prior art, the utility model discloses a kind of PMT measurement and identification device for chemiluminescence annular clamping groove for with reaction photometric position seamless joint, form a darkroom that is completely light-shielded in the front end of lens, can effectively environmental light interference causes the high PMT background noise, improve measurement accuracy.

Description

[Technical Field] This utility model relates to the field of reagent reaction luminescence intensity measurement technology, and in particular to a PMT measurement and identification device for chemiluminescence. [Background Technology] In existing chemical reagent reaction luminescence intensity measurement mechanisms, there is often a large gap between the lens and the photometer position when measuring luminescence intensity. Ambient light can significantly interfere with the measurement process, affecting the accuracy of the measurement. [Utility Model Content] To overcome the above problems, this utility model proposes a PMT measurement and identification device for chemiluminescence that can effectively solve the above problems.

[0001] The present invention provides a technical solution to solve the above-mentioned technical problems: a PMT measurement and identification device for chemiluminescence, comprising a substrate, a sliding seat slidably connected to the substrate, a support frame connected to the sliding seat, and a barcode scanner and a PMT module fixedly connected to the support frame. The barcode scanner is used to identify the barcode of the measured object, and the PMT module is used to measure the luminescence intensity. The PMT module includes a photon counter, a lens is disposed at the front end of the photon counter, a lens mount is disposed outside the lens, and the lens protrudes from the lens mount. The lens mount includes an inner ring light-blocking plate, the lens is located inside the inner ring light-blocking plate, and an outer ring light-blocking plate is concentrically disposed outside the inner ring light-blocking plate. An annular groove is formed between the outer ring light-blocking plate and the inner ring light-blocking plate, and the annular groove is used for seamless engagement with the reaction photometric position.

[0002] Preferably, a slider is connected to the bottom of the sliding seat, a slide rail is connected to the base plate, and the slider is connected to the slide rail.

[0003] Preferably, an end plate is connected to the base plate, a drive motor is connected to the end plate, a lead screw is connected to the motor shaft of the drive motor, a threaded groove matching the lead screw is provided on the sliding seat, and the lead screw is threadedly connected to the threaded groove.

[0004] Preferably, a photoelectric switch is connected to the end plate, and a light-shielding plate is connected to the sliding seat, the position of which corresponds to the position of the photoelectric switch.

[0005] Preferably, the support frame includes a lower frame and an upper frame, which are fixed together. The barcode scanner is connected to the upper frame, and the PMT module is connected to the lower frame.

[0006] Preferably, the lower frame is provided with a lower support surface, and the side of the lower support surface is provided with a lower connecting surface. The PMT module is placed on the lower support surface, and the side of the PMT module is connected to the lower connecting surface by screws.

[0007] Preferably, the upper frame is provided with an upper support surface, and the side of the upper support surface is provided with an upper connecting surface. The barcode scanner is placed on the upper support surface, and the side of the barcode scanner is connected to the upper connecting surface by screws.

[0008] Preferably, a frame plate is connected to the substrate, and a counting plate is connected to the frame plate. The barcode scanner, PMT module, drive motor and photoelectric switch are respectively connected to the counting plate.

[0009] Compared with existing technologies, the lens mount of the PMT measurement and identification device for chemiluminescence of this invention includes an inner ring light-blocking plate, with the lens located inside the inner ring light-blocking plate. An outer ring light-blocking plate is concentrically arranged outside the inner ring light-blocking plate, and an annular groove is formed between the outer ring light-blocking plate and the inner ring light-blocking plate. The annular groove is used for seamless engagement with the reaction photometric position, forming a completely light-blocking dark chamber at the front end of the lens, which can effectively reduce the high background noise of PMT caused by ambient light interference and improve measurement accuracy. The added barcode scanner can fundamentally solve the error of manual input before measurement. At the same time, the integrated structural design of the measurement module and the identification module also speeds up information input and simplifies the operation process. [Attached Image Description] Figure 1 This is a perspective view of the PMT measurement and identification device for chemiluminescence according to this utility model; Figure 2 This is a structural diagram of the PMT module of the chemiluminescence PMT measurement and identification device of this invention; Figure 3 This is a structural diagram of the sliding seat of the PMT measurement and identification device for chemiluminescence according to this utility model; Figure 4 This is a structural diagram of the support frame for the PMT measurement and identification device for chemiluminescence according to this utility model.

Detailed Implementation Methods

[0010] It should be noted that in this embodiment of the invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.

[0011] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0012] Please see Figures 1 to 4 The present invention provides a PMT measurement and identification device for chemiluminescence, comprising a substrate 10, wherein a sliding seat 20 is slidably connected to the substrate 10, and the sliding seat 20 can slide back and forth on the substrate 10.

[0013] A support frame 30 is connected to the sliding base 20. A barcode scanner 40 and a PMT module 50 are fixedly connected to the support frame 30. The barcode scanner 40 is used to identify the barcode of the measured item, and the PMT module 50 is used to measure the luminous intensity.

[0014] The PMT module 50 includes a photon counter 51, with a lens 511 at its front end and a lens mount 52 on its outer side, the lens 511 protruding from the lens mount 52. The photon counter 51 is a Hamamatsu photon counter.

[0015] The lens mount 52 includes an inner ring light-blocking plate 521, with the lens 511 located inside the inner ring light-blocking plate 521. An outer ring light-blocking plate 522 is concentrically arranged outside the inner ring light-blocking plate 521, forming an annular groove 523 between the outer ring light-blocking plate 522 and the inner ring light-blocking plate 521. The annular groove 523 is used for seamless engagement with the reactive light metering position, forming a completely light-blocking dark chamber at the front end of the lens 511, which can effectively reduce the high background noise of the PMT caused by ambient light interference and improve measurement accuracy.

[0016] The bottom of the sliding seat 20 is connected to a slider 21, and a slide rail 11 is connected to the base plate 10. The slider 21 is connected to the slide rail 11.

[0017] An end plate 12 is connected to the base plate 10, and a drive motor 60 is connected to the end plate 12. The motor shaft of the drive motor 60 is connected to a lead screw 61. The sliding seat 20 is provided with a threaded groove 22 that matches the lead screw 61. The lead screw 61 is threadedly connected to the threaded groove 22. The drive motor 60 provides power for the sliding of the sliding seat 20.

[0018] A photoelectric switch 13 is connected to the end plate 12, and a light-shielding plate 23 is connected to the sliding seat 20. The position of the light-shielding plate 23 corresponds to the position of the photoelectric switch 13. As the light-shielding plate 23 moves back and forth with the sliding seat 20, it blocks the photoelectric switch 13 and moves away to trigger the photoelectric switch signal.

[0019] The support frame 30 includes a lower frame 31 and an upper frame 32, which are fixed together. The barcode scanner 40 is connected to the upper frame 32, and the PMT module 50 is connected to the lower frame 31.

[0020] The lower frame 31 is provided with a lower support surface 311, and a lower connecting surface 312 is provided on the side of the lower support surface 311. The PMT module 50 is placed on the lower support surface 311, and the side of the PMT module 50 is connected to the lower connecting surface 312 by screws.

[0021] The upper frame 32 is provided with an upper support surface 321, and the side of the upper support surface 321 is provided with an upper connecting surface 322. The barcode scanner 40 is placed on the upper support surface 321, and the side of the barcode scanner 40 is connected to the upper connecting surface 322 by screws.

[0022] A frame plate 70 is connected to the base plate 10, and a counting plate 80 is connected to the frame plate 70. The barcode scanner 40, PMT module 50, drive motor 60, and photoelectric switch 13 are respectively connected to the counting plate 80. The counting plate 80 is a circuit board used for optical signal conversion, data acquisition, and processing.

[0023] During operation, the reader and PMT move up and down under the action of the lead screw motor and slide rail. First, the test strip enters the test position, the measuring module moves to the recognition position, and after the reader scans and recognizes the code, the measuring module moves and drives the PMT module to the test chamber of the test strip. The annular slot 523 of the PMT module lens mount fits into the test chamber to form a dark chamber. After the PMT performs light measurement, the counting board converts the measured light and uploads it. After the test is completed, the measuring module is reset under the action of the lead screw motor.

[0024] Compared with the prior art, the lens mount 52 of the PMT measurement and identification device for chemiluminescence of this utility model includes an inner ring light-blocking plate 521, with the lens 511 located inside the inner ring light-blocking plate 521. An outer ring light-blocking plate 522 is concentrically arranged outside the inner ring light-blocking plate 521, and an annular groove 523 is formed between the outer ring light-blocking plate 522 and the inner ring light-blocking plate 521. The annular groove 523 is used for seamless engagement with the reaction photometric position, forming a completely light-blocking dark chamber at the front end of the lens 511, which can effectively reduce the high background noise of PMT caused by ambient light interference and improve measurement accuracy. The added barcode scanner 40 can fundamentally solve the error of manual input before measurement. At the same time, the integrated structural design of the measurement module and the identification module also speeds up information input and simplifies the operation process.

[0025] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the concept of the present utility model should be included within the patent protection scope of the present utility model.

Claims

1. A PMT measuring and identifying device for chemiluminescence, characterized in that The device includes a substrate, a sliding seat slidably connected to the substrate, a support frame connected to the sliding seat, and a barcode scanner and a PMT module fixedly connected to the support frame. The barcode scanner is used to identify the barcode of the measured item, and the PMT module is used to measure the luminous intensity. The PMT module includes a photon counter, a lens is provided at the front end of the photon counter, a lens mount is provided on the outside of the lens, and the lens protrudes from the lens mount; The lens mount includes an inner ring light-blocking plate, the lens is located inside the inner ring light-blocking plate, and an outer ring light-blocking plate is concentrically arranged outside the inner ring light-blocking plate. An annular groove is formed between the outer ring light-blocking plate and the inner ring light-blocking plate, and the annular groove is used for seamless engagement with the reactive light metering position.

2. The PMT measurement and identification apparatus for chemiluminescence according to claim 1, wherein, The bottom of the sliding seat is connected to a slider, and a slide rail is connected to the base plate, with the slider connected to the slide rail.

3. The PMT measurement and identification apparatus for chemiluminescence according to claim 1, wherein, An end plate is connected to the base plate, a drive motor is connected to the end plate, a lead screw is connected to the motor shaft of the drive motor, and a threaded groove matching the lead screw is provided on the sliding seat. The lead screw is threadedly connected to the threaded groove.

4. The PMT measurement and identification apparatus for chemiluminescence according to claim 3, wherein, A photoelectric switch is connected to the end plate, and a light-shielding plate is connected to the sliding base. The position of the light-shielding plate corresponds to the position of the photoelectric switch.

5. The PMT measurement and identification apparatus for chemiluminescence of claim 1, wherein, The support frame includes a lower frame and an upper frame, which are fixed together. The barcode scanner is connected to the upper frame, and the PMT module is connected to the lower frame.

6. The PMT measurement and identification apparatus for chemiluminescence according to claim 5, wherein, The lower frame is provided with a lower support surface, and a lower connecting surface is provided on the side of the lower support surface. The PMT module is placed on the lower support surface, and the side of the PMT module is connected to the lower connecting surface by screws.

7. The PMT measurement and identification apparatus for chemiluminescence according to claim 5, wherein, The upper frame is provided with an upper support surface, and the side of the upper support surface is provided with an upper connecting surface. The barcode scanner is placed on the upper support surface, and the side of the barcode scanner is connected to the upper connecting surface by screws.

8. The PMT measurement and identification apparatus for chemiluminescence according to claim 4, wherein, A frame is connected to the base plate, and a counting plate is connected to the frame. The barcode scanner, PMT module, drive motor and photoelectric switch are respectively connected to the counting plate.

Images