CN219320097U

CN219320097U - A survey and read device for POCT

Info

Publication number: CN219320097U
Application number: CN202223179246.9U
Authority: CN
Inventors: 韩奎亮; 张长龙; 周史良; 郝光跃; 牛传清; 付先齐; 习雪丽
Original assignee: Wuhan Huada Gene Biomedical Engineering Co ltd; Beijing Gbi Biotechnology Co ltd
Current assignee: Wuhan Huada Gene Biomedical Engineering Co ltd; Beijing Gbi Biotechnology Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-07-07
Anticipated expiration: 2032-11-25

Abstract

The application relates to the technical field of POCT detection, in particular to a measuring and reading device for POCT, which comprises a mounting plate and a photomultiplier, wherein the detection port of the photomultiplier faces downwards, and a connecting box is fixedly connected to the bottom of the photomultiplier and is in sliding connection with the mounting plate; one side of the connecting box, which is far away from the photomultiplier, is provided with a detection head communicated with the cavity, a light barrier capable of horizontally moving is arranged in the connecting box, a through hole is formed in the light barrier, and the detection port is communicated with the inside of the connecting box; a base is fixed on the mounting plate, a driving piece is mounted on the base, a lifting connecting component for driving the connecting box to lift is arranged on the driving piece, and a translation connecting component for driving the light blocking piece to move horizontally is also arranged on the driving piece; the connection box has a moving range, and when the connection box is located at the highest position, the light blocking sheet is in a light blocking state. The photomultiplier lifting and shutter opening and closing synchronous operation can be realized, so that the accuracy of detection data is improved.

Description

A survey and read device for POCT

Technical Field

The application relates to the technical field of POCT detection, in particular to a measuring and reading device for POCT.

Background

POCT, chinese name, is the instant test, which is the product of testing the new trend of medical development. Medical testing modes are developed from manual, complex to operate, away from the patient site to automatic, simplified and close to the patient site, and instant testing has become an important component of testing medicine, and has been greatly developed and applied in clinical applications.

The detection method adopted in the instant test is chemiluminescence immunoassay, namely, a chemiluminescent substance is catalyzed by a catalyst and oxidized by an oxidant to form an excited state intermediate, when the excited state intermediate can reach a stable ground state, photons are emitted simultaneously, and the light quantum yield is measured by a luminescent signal measuring instrument. The detection of the luminous value is usually completed by adopting a photomultiplier, which is a vacuum electronic device capable of converting weak light signals into electric signals, the electric signals are detected by single photons and transmitted to an amplifier, high-voltage current is added for amplification, the amplifier converts analog current into digital current, and the digital current transmits the luminous signals to a computer through a data line for calculation, so that a detection result is obtained. The accuracy of testing result is guaranteed in the light-proof that needs to keep away in the photomultiplier testing process, because photomultiplier inner structure afraid of light, consequently often is provided with the shutter on the photomultiplier to guarantee that light can not get into inside the photomultiplier through the detecting head.

The PMT detection method described in the related art is: firstly, regulating a PMT in the vertical direction to enable a detection head to be closely attached to a pipe orifice of a reaction pipe filled with a tested sample so as to ensure that the light cannot pass, then opening a shutter, and starting a photomultiplier for detection; after the detection, the shutter is closed first, and then the photomultiplier is adjusted upwards to release the close relation between the detection head and the reaction tube. However, since the control of the distance between the detection device and the object to be detected and the control of the shutter are separately controlled, the case of operating different frequencies easily occurs when a problem occurs in the system, thereby affecting the accuracy of the detection data.

Disclosure of Invention

In order to realize synchronous lifting and shutter opening and closing of a photomultiplier tube and improve accuracy of detection data, the application provides a measuring and reading device for POCT.

The application provides a survey and read device for POCT adopts following technical scheme:

the utility model provides a survey and read device for POCT, includes mounting panel and photomultiplier, photomultiplier's detection mouth is down, photomultiplier's bottom rigid coupling has the connection box, connection box with mounting panel sliding connection; the connecting box is internally provided with a cavity, a light barrier is arranged in the cavity and can horizontally move in the cavity, the light barrier is provided with a through hole for a light beam to pass through, the detection port is communicated with the cavity, and one side of the connecting box, which is far away from the photomultiplier, is provided with a detection head communicated with the cavity; a base is fixed on the mounting plate, a driving piece is mounted on the base, a lifting connecting component for driving the connecting box to lift is arranged on the driving piece, and a translation connecting component for driving the light barrier to horizontally move is also arranged on the driving piece; the connection box has a moving range, and when the connection box is positioned at the highest position, the light barrier is in a light blocking state.

By adopting the technical scheme, the driving piece is started, and can drive the connecting box to lift and the light barrier to horizontally move at the same time; when the driving piece drives the connection box to descend, the translational connection assembly enables the through holes on the light barrier to be aligned with the detection head and the detection port in the vertical direction, so that light beams in the photomultiplier can irradiate into the reaction tube, and the measurement and reading of photon numbers are completed; thus, the control of the distance between the detection device and the detected object and the control of the shutter are synchronously controlled, the influence caused by different frequencies of the system is reduced, and the accuracy of detection data is improved.

Optionally, the driving piece is the double-end motor, the output shaft of driving piece is vertical to be set up, lift coupling assembling is including the rigid coupling driving piece upper end output epaxial revolving stage, the shaping has the domatic of spiral on the revolving stage, the rigid coupling has the montant on the junction box, integrated into one piece has the horizontal pole on the montant, works as the driving piece rotates, the domatic drive the junction box goes up and down.

By adopting the technical scheme, the driving piece is started to drive the turntable to rotate, the height of the slope surface is continuously increased, the cross rod can be jacked up, so that the connection box is lifted, the driving piece is reversed, and the connection box can be driven to descend.

Optionally, a sliding rail is installed on the mounting plate, a sliding block is connected to the sliding rail in a sliding manner, and the connection box is connected to the sliding block.

Through adopting above-mentioned technical scheme, when the lifter drove the connection box and goes up and down, the slider carries out elevating movement equally on the slide rail, through slider and slide rail, can support the connection box to improve the stability that connects box and photomultiplier removal in-process.

Optionally, a vertical roller is installed on one side of the cross bar, which is close to the turntable, and the vertical roller can be in sliding connection with the slope.

Through adopting above-mentioned technical scheme, through setting up and erectting the gyro wheel, reduced the frictional force between horizontal pole and the domatic to just can increase the life of horizontal pole and domatic.

Optionally, the upper end output shaft of the driving element is fixedly connected with a turntable, the turntable is fixedly connected with the turntable, the base is provided with a photoelectric switch, the photoelectric switch is coupled with a controller, the driving element is coupled with the controller, the turntable is provided with a notch, when the notch moves to a position between the transmitting end and the receiving end of the photoelectric switch, the vertical roller is positioned at the highest point of the slope, and when the notch moves to a position between the transmitting end and the receiving end of the photoelectric switch, the photoelectric switch transmits signals to the controller.

Through adopting above-mentioned technical scheme, when the notch motion is to between photoelectric switch's the transmitting end and the receiving end, photoelectric switch carries the signal to the controller, and the output shaft of controller control driving piece turns to and has changed to realize automatic control.

Optionally, an extension spring is disposed between the mounting plate and the vertical rod.

Through adopting above-mentioned technical scheme, when the connector box moves down, under extension spring's effect, the connector box receives decurrent pulling force all the time before moving to the lowest position, and the connector box can realize descending fast, can improve the compactness between mouth of pipe and the detection head simultaneously.

Optionally, the translation coupling assembling is including the rigid coupling in dial on the lower extreme output shaft of driving piece, be connected with the connecting rod on the light barrier, dial the board and drive connecting rod horizontal migration, be provided with the collar on the connection box, install reset spring on the collar, reset spring keep away from the one end of collar with the connecting rod rigid coupling.

By adopting the technical scheme, the output shaft of the driving piece rotates to drive the shifting plate to rotate, and the shifting plate pushes the connecting rod to realize the purpose of light blocking; when the driving piece reverses, the pulling plate does not push the connecting rod any more, and the through hole on the straight light barrier can be aligned with the detection head and the detection port in the vertical direction under the action of the reset spring, so that the light beam in the photomultiplier can irradiate into the reaction tube to complete the measurement and reading of the photon number.

Optionally, the connecting rod is close to the one end of dialling the board is installed the mount pad, be provided with horizontal gyro wheel on the mount pad.

Through adopting above-mentioned technical scheme, when dialling the board promotion connecting rod, can reduce the frictional force of dialling between board and the connecting rod to extension dials the life of board and connecting rod.

Optionally, install the iris in the connection box, the iris is located the light barrier with detect the head between, be provided with on the connection box and be used for adjusting the adjusting part in iris aperture.

Through adopting above-mentioned technical scheme, can change the light beam according to actual working needs how much that passes through for this device can satisfy more work demands, has better practicality.

Optionally, the adjusting part is including wearing to establish adjust the pole on the connection box, adjust the pole with connection box sliding connection is connected with the connecting rod on the iris, the connecting rod is kept away from the one end rigid coupling of iris has the nut, adjust the pole with nut threaded connection.

By adopting the technical scheme, the left-handed or right-handed adjusting rod drives the connecting rod to move so as to realize the adjustment of the aperture size of the iris diaphragm, thereby changing the passing quantity of the light beam.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the POCT measuring and reading device, the lifting of the photomultiplier and the opening and closing of the shutter can be realized simultaneously by driving the driving piece, so that the lifting of the photomultiplier and the opening and closing of the shutter can be synchronously adjusted when the photomultiplier detects, the inside of the photomultiplier can not see light, and the accuracy of detection data is improved;

2. according to the device, the iris diaphragm and the adjusting component for adjusting the aperture of the iris diaphragm are arranged, and the size of the optical aperture of the iris diaphragm is adjusted through the adjusting component according to actual working requirements, so that the number of light beams passing through is changed, more working requirements can be met, and the device is better in practicability;

drawings

Fig. 1 is a schematic structural diagram of a measurement and reading device for POCT in the present application;

FIG. 2 is a schematic structural view of a shutter mechanism in the present application;

FIG. 3 is a schematic view of the structure of the POCT testing and reading device of the present application after hiding the mounting plate and the tension spring;

fig. 4 is a rear view of a read-and-test device for POCT in the present application;

fig. 5 is a front view of the test reader for POCT of the present application after the connection box is hidden.

Reference numerals illustrate: 1. a mounting frame; 101. a mounting plate; 102. a base; 2. a photomultiplier tube; 3. a connection box; 4. a detection head; 5. a shutter mechanism; 501. a translational connection assembly; 5011. a poking plate; 5012. a return spring; 5013. a connecting rod; 502. a light barrier; 5021. a through hole; 6. a driving member; 7. a turntable; 701. a notch; 8. lifting the connecting component; 801. a turntable; 8011. a slope; 802. a lifting rod; 8021. a cross bar; 8022. a vertical rod; 9. a roller is vertically arranged; 10. an optoelectronic switch; 11. an adjustment assembly; 1101. an adjusting rod; 1102. a connecting rod; 1103. a screw cap; 1104. a blocking head; 12. a sleeve; 13. a mounting ring; 14. a mounting base; 15. a horizontal roller; 16. a tension spring; 17. a slide rail; 18. a slide block; 19. an iris diaphragm; 20. a compression spring.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a survey and read device for POCT, refer to fig. 1 and 2, a survey and read device for POCT includes mounting bracket 1, shutter mechanism 5 and photomultiplier 2, photomultiplier 2's detection mouth is down, photomultiplier 2 bottom rigid coupling has connection box 3, connection box 3 and mounting bracket 1 sliding connection, connection box 3 is kept away from photomultiplier 2's one side and is installed detection head 4, connection box 3 inside is formed with the cavity, shutter mechanism 5 is including setting up the light barrier 502 in the cavity, light barrier 502 can be in cavity internal horizontal migration, the through-hole 5021 that can supply the light beam to pass through has been seted up on the light barrier 502. The mounting frame 1 is further provided with a driving piece 6, the driving piece 6 and the photomultiplier 2 are horizontally arranged side by side, the driving piece 6 is provided with a lifting connecting assembly 8 for driving the connecting box 3 to lift, the shutter mechanism 5 further comprises a translation connecting assembly 501 arranged on the driving piece 6, and the translation connecting assembly 501 is used for driving the light barrier 502 to horizontally move.

When the driving piece 6 is started, the driving piece 6 can drive the connecting box 3 to lift and the light barrier 502 to horizontally move at the same time, and when the driving piece 6 drives the connecting box 3 to lift, the driving piece 6 also drives the light barrier 502 to move so as to realize a light blocking state; when the driving piece 6 drives the connection box 3 to descend, the translational connection assembly 501 enables the through holes 5021 on the light barrier 502 to be aligned with the detection head 4 and the detection port in the vertical direction, so that light beams in the photomultiplier 2 can irradiate into the reaction tube, and measurement and reading of photon numbers are completed; thus, the photomultiplier tube 2 can be lifted and closed synchronously with the shutter opening and closing, so that the accuracy of the detection data is improved.

Specifically, referring to fig. 1, the mounting bracket 1 includes a mounting plate 101 and a base 102, the base 102 is fixedly connected to the mounting plate 101, the connection box 3 is connected to the mounting plate 101, the driving member 6 is fixed to the base 102, the driving member 6 adopts a double-headed motor, an output shaft of the double-headed motor is vertically arranged, an upper end output shaft of the driving member 6 is arranged on the base 102 in a penetrating manner, and of course, the driving member 6 can also adopt a penetrating motor.

Referring to fig. 1 and 3, the lifting connection assembly 8 includes a turntable 801 fixedly connected to an output shaft at an upper end of the driving member 6, the turntable 801 is formed with a spiral slope 8011, the connection box 3 is fixedly connected with a lifting rod 802, the lifting rod 802 includes a vertical rod 8022 fixedly connected to the connection box 3, one end of the vertical rod 8022, far from the connection box 3, is integrally formed with a cross rod 8021, and the cross rod 8021 extends in a direction close to the driving member 6. The cross bar 8021 is slidably connected with the slope 8011, and the driving member 6 is started, so that the cross bar 8021 slides along the setting direction of the slope 8011, and the connection box 3 is driven to ascend or descend. The vertical roller 9 is installed to the one end that montant 8022 was kept away from to horizontal pole 8021, and vertical roller 9 and domatic 8011 can sliding connection, through setting up vertical roller 9, has reduced the frictional force between horizontal pole 8021 and the domatic 8011 to just can increase the life of horizontal pole 8021 and domatic 8011.

Referring to fig. 3, in order to improve stability in the moving process of the connection box 3 and the photomultiplier 2, a slide rail 17 is fixed on one side of the mounting plate 101, which is close to the photomultiplier 2, a slide block 18 is slidably connected to the slide rail 17, the connection box 3 is fixedly connected with the slide block 18, when the lifting rod 802 drives the connection box 3 to lift, the slide block 18 also lifts on the slide rail 17, and the connection box 3 can be supported by the slide block 18 and the slide rail 17, so as to improve stability in the moving process of the connection box 3 and the photomultiplier 2.

Referring to fig. 4, an extension spring 16 is disposed between the mounting plate 101 and the vertical rod 8022, when the connection box 3 moves downward, under the action of the extension spring 16, the connection box 3 always receives downward tension before moving to the lowest position, and the connection box 3 can be quickly lowered, that is, the detection head 4 can quickly cover the pipe orifice of the reaction pipe, and meanwhile, the tightness between the pipe orifice and the detection head 4 can be improved.

Referring to fig. 2 and 3, the translational connecting assembly 501 includes a shifting plate 5011 fixedly connected to an output shaft at a lower end of the driving member 6, a connecting rod 5013 is fixedly connected to the light blocking plate 502, a mounting ring 13 is fixedly connected to the connecting box 3, the connecting rod 5013 is arranged on the connecting box 3 and the mounting ring 13 in a penetrating manner, a return spring 5012 is fixedly connected to the mounting ring 13, and one end, far away from the mounting ring 13, of the return spring 5012 is fixedly connected with the connecting rod 5013. The output shaft of the driving piece 6 rotates to drive the shifting board 5011 to rotate, and the shifting board 5011 pushes the connecting rod 5013 to enable the light barrier 502 to move in a direction away from the driving piece 6, so as to achieve the purpose of light blocking; when the driving piece 6 reverses, the shifting plate 5011 does not push the connecting rod 5013 any more, and the connecting rod 5013 drives the light barrier 502 to move towards the direction close to the driving piece 6 under the action of the reset spring 5012 until the through holes 5021 on the light barrier 502 can be aligned with the detection head 4 and the detection port in the vertical direction, so that the light beam in the photomultiplier 2 can irradiate into the reaction tube to complete the measurement and reading of the photon number.

Referring to fig. 3, a turntable 7 is fixedly connected to an output shaft at an upper end of the driving member 6, a notch 701 is formed in the turntable 7, the turntable 801 is located above the turntable 7 and is fixedly connected to the turntable 7, a photoelectric switch 10 is mounted on the base 102, the photoelectric switch 10 is coupled to a controller (not shown in the figure), the driving member 6 is coupled to the controller, and when the notch 701 moves between a transmitting end and a receiving end of the photoelectric switch 10, the vertically placed roller 9 is just located at a highest point of the slope 8011. When the notch 701 moves between the transmitting end and the receiving end of the photoelectric switch 10, the photoelectric switch 10 sends a signal to the controller, and the controller controls the output shaft of the driving piece 6 to change in direction, namely when the notch 701 moves between the transmitting end and the receiving end of the photoelectric switch 10, the connection box 3 moves to the highest position, and meanwhile the shifting board 5011 pushes the light barrier 502 to move to achieve the light blocking purpose; at this time, the output shaft of the driving member 6 is reversed, the connection box 3 starts to descend, and the dial plate 5011 is reversed, and the light barrier 502 is slowly reset under the action of the reset spring 5012, thereby realizing automatic control.

The one end rigid coupling that the light barrier 502 was kept away from to connecting rod 5013 has mount pad 14, rotates on the mount pad 14 to be connected with horizontal gyro wheel 15, like this, when dialling board 5011 promotes connecting rod 5013, can reduce the frictional force between dialling board 5011 and the connecting rod 5013 to extension dialling board 5011 and connecting rod 5013's life. The sleeve 12 is sleeved on the connecting rod 5013 to improve the tightness between the connecting rod 5013 and the connecting box 3, so as to reduce the possibility of light transmission.

Referring to fig. 2 and 5, in order to change the light beam passing amount according to the actual working requirement, the device can meet more working requirements, better practicability is achieved, an iris diaphragm 19 is further arranged in the connecting box 3, the iris diaphragm 19 is arranged at the upper end of the detecting head 4, meanwhile, an adjusting component 11 for adjusting the aperture of the iris diaphragm 19 is further arranged in the connecting box 3, the adjusting component 11 comprises an adjusting rod 1101 penetrating through the connecting box 3, the adjusting rod 1101 is slidably connected with the connecting box 3, a connecting rod 1102 is fixedly connected to the iris diaphragm 19, a nut 1103 is fixedly connected to one end of the connecting rod 1102, which is far away from the iris diaphragm 19, of the connecting rod 1102, and the adjusting rod 1101 is in threaded connection with the nut 1103. Thus, the left-hand or right-hand adjusting rod 1101 drives the connecting rod 1102 to move, so as to realize the adjustment of the aperture size of the iris diaphragm 19, thereby changing the passing amount of the light beam. In order to ensure the tightness between the adjusting rod 1101 and the connecting box 3, a blocking head 1104 is fixedly connected to one end of the adjusting rod 1101, which is far away from the nut 1103, and meanwhile, a pressure spring 20 is fixedly connected between the nut 1103 and the inner wall of the connecting box 3, and under the action of the pressure spring 20, the blocking head 1104 can be tightly attached to the outer wall of the connecting box 3 all the time so as to ensure that external light cannot pass through.

Of course, in order to realize the versatility of the device, that is, to be able to perform filtering processing on the light beam, so as to improve the accuracy of the detection result, a filter may be provided between the detection head 4 and the iris 19.

Of course, in this embodiment, when the vertical roller 9 moves from the highest position of the slope 8011 to the middle position of the total length of the slope 8011, the detecting head 4 can be tightly attached to the pipe orifice of the reaction pipe, the slope 8011 continues to move, no influence is generated on the vertical roller 9, and at this time, the driving member 6 only drives the light barrier 502 to move, so that the accuracy of the final detection data can be reduced due to the influence of the visible light of the photomultiplier 2 in the synchronous movement process of lifting and shutter opening and closing of the photomultiplier 2.

In this embodiment, the fastening manner is not specifically described, and direct welding and fixing may be adopted, or connection may be adopted by using a connecting piece, for example: screw connection, bolt connection, self-tapping screw connection and the like, and can meet the working requirements.

The embodiment of the application relates to an implementation principle of a measuring and reading device for POCT: when the light blocking device is used, when the driving piece 6 drives the connecting box 3 to ascend through the lifting rod 802, the driving piece 6 also drives the light blocking plate 502 to move through the shifting plate 5011 and the connecting rod 5013 so as to realize a light blocking state; when the driving piece 6 drives the connection box 3 to descend, the translational connection assembly 501 enables the through holes 5021 on the light barrier 502 to be aligned with the detection head 4 and the detection port in the vertical direction, so that light beams in the photomultiplier 2 can irradiate into the reaction tube, and measurement and reading of photon numbers are completed; thus, the photomultiplier tube 2 can be lifted and closed synchronously with the shutter opening and closing, so that the accuracy of the detection data is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A survey and read device for POCT, characterized by: the device comprises a mounting plate (101) and a photomultiplier tube (2), wherein a detection port of the photomultiplier tube (2) faces downwards, a connecting box (3) is fixedly connected to the bottom of the photomultiplier tube (2), and the connecting box (3) is in sliding connection with the mounting plate (101);

the connecting box (3) is internally provided with a cavity, the cavity is internally provided with a light barrier (502), the light barrier (502) can horizontally move in the cavity, a through hole (5021) for a light beam to pass through is formed in the light barrier (502), a detection port of the photomultiplier (2) is communicated with the cavity, and one side, far away from the photomultiplier (2), of the connecting box (3) is provided with a detection head (4) communicated with the cavity;

a base (102) is fixed on the mounting plate (101), a driving piece (6) is mounted on the base (102), a lifting connecting component (8) for driving the connecting box (3) to lift is arranged on the driving piece (6), and a translation connecting component (501) for driving the light barrier (502) to horizontally move is also arranged on the driving piece (6);

the connecting box (3) has a moving range, and when the connecting box (3) is positioned at the highest position, the light barrier (502) is in a light blocking state.

2. The device for POCT reading of claim 1, wherein: the driving piece (6) is a double-headed motor, an output shaft of the driving piece (6) is vertically arranged, the lifting connecting assembly (8) comprises a rotary table (801) fixedly connected to an output shaft at the upper end of the driving piece (6), a spiral slope (8011) is formed on the rotary table (801), a vertical rod (8022) is fixedly connected to the connecting box (3), a cross rod (8021) is integrally formed on the vertical rod (8022), and the lifting connecting box (3) is driven by the slope (8011) to lift when the driving piece (6) rotates.

3. The device for POCT reading of claim 2, wherein: the mounting plate (101) is provided with a sliding rail (17), the sliding rail (17) is connected with a sliding block (18) in a sliding mode, and the connecting box (3) is connected to the sliding block (18).

4. The device for POCT reading of claim 2, wherein: one side of the cross rod (8021) close to the turntable (801) is provided with a vertical roller (9), and the vertical roller (9) can be in sliding connection with the slope (8011).

5. The device for POCT reading of claim 4, wherein: the automatic control device is characterized in that a turntable (7) is fixedly connected to an output shaft at the upper end of the driving piece (6), the turntable (801) is fixedly connected to the turntable (7), a photoelectric switch (10) is mounted on the base (102), the photoelectric switch (10) is coupled with a controller, the driving piece (6) is coupled with the controller, a notch (701) is formed in the turntable (7), and when the notch (701) moves to a position between the transmitting end and the receiving end of the photoelectric switch (10), the vertical roller (9) is located at the highest point of the slope (8011), and the photoelectric switch (10) transmits signals to the controller.

6. The device for POCT reading of claim 2, wherein: an extension spring (16) is arranged between the mounting plate (101) and the vertical rod (8022).

7. The device for POCT reading of claim 1, wherein: the translational connecting assembly (501) comprises a shifting plate (5011) fixedly connected to the lower end output shaft of the driving piece (6), a connecting rod (5013) is connected to the light blocking plate (502), the shifting plate (5011) drives the connecting rod (5013) to horizontally move, a mounting ring (13) is arranged on the connecting box (3), a reset spring (5012) is arranged on the mounting ring (13), and one end, away from the mounting ring (13), of the reset spring (5012) is fixedly connected with the connecting rod (5013).

8. The device for POCT reading of claim 7, wherein: one end of the connecting rod (5013) close to the shifting plate (5011) is provided with a mounting seat (14), and the mounting seat (14) is provided with a transverse roller (15).

9. The device for POCT reading of claim 1, wherein: an iris diaphragm (19) is arranged in the connecting box (3), the iris diaphragm (19) is positioned between the light barrier (502) and the detection head (4), and an adjusting component (11) for adjusting the aperture of the iris diaphragm (19) is arranged on the connecting box (3).

10. The device for POCT reading of claim 9, wherein: the adjusting component (11) comprises an adjusting rod (1101) penetrating through the connecting box (3), the adjusting rod (1101) is in sliding connection with the connecting box (3), a connecting rod (1102) is connected to the iris diaphragm (19), a nut (1103) is fixedly connected to one end, far away from the iris diaphragm (19), of the connecting rod (1102), and the adjusting rod (1101) is in threaded connection with the nut (1103).