Detection device

Abstract

The application provides a detection device, and relates to the technical field of chemiluminescence detection. The detection device comprises a mounting plate, a steering engine, a detection mechanism and a light shielding plate. The mounting plate is provided with a first detection hole, the detection mechanism is mounted on the mounting plate and is arranged in position correspondence with the first detection hole. The steering engine is mounted on the mounting plate and is located on the same side of the detection mechanism. The driving shaft of the steering engine is in transmission connection with the light shielding plate through the mounting plate. The light shielding plate has a light shielding state of covering the first detection hole and an opening state of opening the first detection hole. The steering engine drives the light shielding plate to rotate so as to switch the light shielding plate between the light shielding state and the opening state. The detection device provided by the application solves the technical problem of low detection precision of the PMT detection equipment in the prior art.

Description

Technical Field

[0001] This application relates to the field of chemiluminescence detection technology, and more specifically, to a detection device. Background Technology

[0002] In single-person chemiluminescence characterization, PMTs (photomultiplier tubes) are required for luminescence detection. The light sealing in PMT detection is crucial to the detection accuracy. However, existing PMT detection methods suffer from poor sealing, which makes the detection results susceptible to the influence of other light sources in the environment, resulting in low detection accuracy. Utility Model Content

[0003] The purpose of this application is to provide a detection device to alleviate the technical problem of low detection accuracy in existing PMT detection equipment.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: The detection device provided by this utility model includes a mounting plate, a servo motor, a detection mechanism, and a light shield. The mounting plate has a first detection hole, and the detection mechanism is mounted on the mounting plate and is positioned corresponding to the first detection hole. The servo motor is mounted on the mounting plate and is located on the same side of the mounting plate as the detection mechanism. The drive shaft of the servo motor passes through the mounting plate and is connected to the light shield. The light-shielding plate has a light-shielding state that covers the first detection hole and an open state that opens the first detection hole. The servo motor drives the light-shielding plate to rotate so that the light-shielding plate switches between the light-shielding state and the open state.

[0005] Furthermore, the light-shielding plate includes a transmission part, a connecting part, and a light-shielding part, with both ends of the connecting part connected to the transmission part and the light-shielding part, respectively; The transmission unit is connected to the drive shaft of the servo motor, and the light-shielding unit has a light-shielding state and an open state.

[0006] Furthermore, the end face of the transmission part away from the connecting part is configured as a first arc surface, and the first arc surface protrudes in the direction away from the connecting part; The end face of the light-shielding part away from the connecting part is configured as a second arc surface, and the second arc surface protrudes in the direction away from the connecting part; The radius of the first arc surface is smaller than the radius of the second arc surface.

[0007] Furthermore, the mounting plate has a receiving groove on the side opposite to the detection mechanism, and the light-shielding plate is located in the receiving groove.

[0008] Furthermore, the detection device includes a sealing plate, and the mounting plate has a light-shielding groove on the side opposite to the detection mechanism; The sealing plate is embedded in the light-shielding groove, the light-shielding plate is located between the mounting plate and the sealing plate, and the sealing plate has a second detection hole; The position of the second detection hole corresponds to the position of the first detection hole.

[0009] Furthermore, a first sealing element is installed on the surface of the sealing plate opposite to the bottom wall of the light-shielding groove, and the first sealing element surrounds the outer periphery of the second detection hole.

[0010] Furthermore, the detection device includes a detection head and a sealing pressure plate; The detection head is embedded in the side of the sealing plate opposite to the mounting plate, and the sealing pressure plate is installed on the mounting plate and presses against the outer periphery of the detection head; The detection head is elastic.

[0011] Furthermore, a second seal is provided between the servo motor and the mounting plate; And / or, a third sealing element is sandwiched between the detection mechanism and the mounting plate.

[0012] Furthermore, the servo motor has a position feedback module.

[0013] Furthermore, the detection device also includes a horizontal drive assembly and a vertical drive assembly; In the vertical direction, the detection mechanism and the servo motor are mounted on the top of the mounting plate, and the light shield is located at the bottom of the mounting plate; The vertical drive assembly is connected to the mounting plate in a transmission manner to drive the mounting plate to move in the vertical direction; The horizontal drive assembly is connected to the vertical drive assembly to drive the vertical drive assembly to move in the horizontal direction; The horizontal drive component, the vertical drive component, and the feedback module are connected by signals.

[0014] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows: The detection device provided by this utility model includes a mounting plate, a servo motor, a detection mechanism, and a light-shielding plate. The mounting plate has a first detection hole, and the detection mechanism is mounted on the mounting plate, corresponding to the position of the first detection hole. The servo motor is mounted on the mounting plate and located on the same side as the detection mechanism. The drive shaft of the servo motor passes through the mounting plate and is connected to the light-shielding plate. The light-shielding plate has a light-shielding state where the first detection hole is covered and an open state where the first detection hole is open. The servo motor drives the light-shielding plate to rotate, switching between the light-shielding state and the open state. The mounting plate is used to fix and support the servo motor and the detection mechanism. The first detection hole of the mounting plate is used for light emitted by the detection mechanism. The servo motor is connected to the light-shielding plate and drives the light-shielding plate to rotate, so that the light-shielding plate covers or opens the first detection hole. This allows the first detection hole to be open when the detection mechanism is performing detection, and closed when the detection mechanism is not performing detection, making it difficult for external light to enter the detection mechanism and affect the detection results. This ensures the light sealing of the detection mechanism and improves the detection accuracy. The servo motor drives the light shield to rotate, which reduces the space occupied by the light shield and avoids the problem of the large size of the entire detection device due to the large space occupied by the light shield.

[0015] When this detection device is used, when the detection mechanism needs to perform detection, the servo drives the light shield to rotate to the open state, the light shield opens the first detection hole, the detection mechanism performs detection and outputs the detection result; after the detection mechanism completes the detection, the servo drives the light shield to rotate to the light shielding state, the light shield covers the first detection hole, thereby preventing the detection mechanism from being exposed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the detection device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the internal structure of the mounting plate in the detection device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the internal structure of the detection device provided in the embodiments of this application.

[0018] icon: 100 - Mounting plate; 110 - First detection hole; 120 - Receiving groove; 130 - Light-shielding groove; 200-servo motor; 300 - Testing Agency; 400 - Light-shielding plate; 410 - Transmission part; 411 - First arc surface; 420 - Connecting part; 430 - Light-shielding part; 431 - Second arc surface; 500 - Sealing plate; 510 - Second inspection hole; 610 - First seal; 620 - Second seal; 630 - Third seal; 710 - Detection head; 720 - Sealing plate; 711 - Limiting protrusion; 800 - Horizontal drive assembly; 810 - First drive source; 820 - Driven pulley; 830 - Synchronous belt; 900 - Vertical drive assembly; 910 - Guide rail; 920 - Slider; 930 - Adapter plate; 940 - Second drive source. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] In single-person chemiluminescence PMT detection, ensuring the light-tightness of the PMT detection device is crucial to determining the detection accuracy.

[0023] In view of this, see Figures 1 to 3The detection device provided in this embodiment of the utility model includes a mounting plate 100, a servo motor 200, a detection mechanism 300, and a light shield 400. The mounting plate 100 has a first detection hole 110. The detection mechanism 300 is mounted on the mounting plate 100 and is positioned corresponding to the first detection hole 110. The servo motor 200 is mounted on the mounting plate 100 and is located on the same side of the mounting plate 100 as the detection mechanism 300. The drive shaft of the servo motor 200 passes through the mounting plate 100 and is connected to the light shield 400 in a transmission manner. The light shield 400 has a light-shielding state that covers the first detection hole 110 and an open state that opens the first detection hole 110. The servo motor 200 drives the light shield 400 to rotate so that the light shield 400 switches between the light-shielding state and the open state.

[0024] Specifically, the servo motor 200 is an actuator capable of precisely controlling rotation angle and featuring a position feedback module. It includes a motor and a reduction gear set. The position feedback module comprises a potentiometer and a control circuit. The motor is connected to the reduction gear set, and the drive shaft of the reduction gear set passes through the mounting plate 100 and connects to the light-shielding plate 400. The motor provides power, and the reduction gear set reduces speed and increases torque. The potentiometer detects the current angle of the drive shaft, and the control circuit receives external signals and drives the motor to rotate until the target angle is reached. The operation of the servo motor 200 involves the control circuit identifying the desired target angle. The control circuit reads the current angle identified by the potentiometer; the control circuit compares the target angle with the current angle, calculates the error, and then drives the motor to rotate in the direction that reduces the error; the motor drives the drive shaft and potentiometer to rotate together via the reduction gear set; when the current angle detected by the potentiometer matches the target angle, the error is zero, and the motor stops rotating. The servo motor 200, with its position feedback module, can accurately position itself without requiring additional components, simplifying the structure of the detection device and reducing its cost.

[0025] Mounting plate 100 is used to fix and support servo motor 200 and detection mechanism 300. The first detection hole 110 of mounting plate 100 is used for light emitted by detection mechanism 300. Servo motor 200 is connected to light shield 400, driving light shield 400 to rotate, so that light shield 400 covers or opens the first detection hole 110. This allows the first detection hole 110 to be opened when detection mechanism 300 is performing detection, and covered when detection mechanism 300 is not performing detection, making it difficult for external light to enter detection mechanism 300 and affect the detection results, ensuring the light sealing of detection mechanism 300, thereby improving the detection accuracy of detection mechanism 300. The servo motor 200 driving the light shield 400 to rotate reduces the space occupied by light shield 400, avoiding the problem of a large light shield 400 occupying a large space and causing the overall detection device to be large. When the detection device is used, when the detection mechanism 300 needs to perform detection, the servo motor 200 drives the light shield 400 to rotate to the open state, the light shield 400 opens the first detection hole 110, the detection mechanism 300 performs detection and outputs the detection result; after the detection mechanism 300 completes the detection, the servo motor 200 drives the light shield 400 to rotate to the light shield state, the light shield 400 covers the first detection hole 110, thereby preventing the detection mechanism 300 from being exposed.

[0026] The shape and structure of the detection device are described in detail below: In the optional solution provided by this utility model embodiment, the light shield 400 includes a transmission part 410, a connecting part 420 and a light shield 430. The two ends of the connecting part 420 are respectively connected to the transmission part 410 and the light shield 430. The transmission part 410 is connected to the drive shaft of the servo motor 200. The light shield 430 has a light shielding state and an open state.

[0027] Specifically, see Figure 2 The transmission part 410, the connecting part 420 and the light-shielding part 430 are integrally formed.

[0028] The transmission part 410 is connected to the servo motor 200, and the light-shielding part 430 has a light-shielding state and an open state, so that one end of the light-shielding plate 400 is connected to the servo motor 200, and the other end is opposite or misaligned with the first detection hole 110, thereby realizing that the light-shielding plate 400 swings around one end of itself, which reduces the space occupied by the light-shielding plate 400 compared to rotating around its middle.

[0029] In the optional solution provided by this utility model embodiment, the end face of the transmission part 410 away from the connecting part 420 is configured as a first arc surface 411, and the first arc surface 411 protrudes in the direction away from the connecting part 420; the end face of the light-shielding part 430 away from the connecting part 420 is configured as a second arc surface 431, and the second arc surface 431 protrudes in the direction away from the connecting part 420; the radius of the first arc surface 411 is smaller than the radius of the second arc surface 431.

[0030] Specifically, see Figure 2 The two sidewalls of the connecting part 420 are inclined surfaces with opposite directions to connect the first arc surface 411 of the transmission part 410 and the second arc surface 431 of the light-shielding part 430. Furthermore, both the transmission part 410 and the light-shielding part 430 are semi-circular.

[0031] The radius of the first arc surface 411 is smaller than the radius of the second arc surface 431. When the light shield 400 swings around the center of the transmission part 410, the area of ​​the light shield 430 is large enough to cover the first detection hole 110, and the area of ​​the transmission part 410 is small and occupies little space.

[0032] In the optional solution provided by this utility model embodiment, the mounting plate 100 is provided with a receiving groove 120 on the side away from the detection mechanism 300, and the light shield 400 is located in the receiving groove 120.

[0033] Specifically, the shape of the receiving groove 120 matches the swinging covering shape of the light shield 400. A servo motor 200 and a detection mechanism 300 are mounted on the top wall of the mounting plate 100, and the bottom wall of the mounting plate 100 is recessed upwards to form the receiving groove 120; a first detection hole 110 is provided on the bottom wall of the receiving groove 120 and penetrates the mounting plate 100 along its thickness direction. Preferably, the depth of the receiving groove 120 is consistent with the thickness of the light shield 400.

[0034] The light shield 400 is located inside the receiving groove 120. The side wall of the receiving groove 120 can block the light from the gap between the light shield 400 and the bottom wall of the receiving groove 120, further preventing the testing mechanism 300 from being exposed.

[0035] In the optional embodiment of this utility model, the detection device includes a sealing plate 500, and a light-shielding groove 130 is provided on the side of the mounting plate 100 away from the detection mechanism 300; the sealing plate 500 is embedded in the light-shielding groove 130, the light-shielding plate 400 is located between the mounting plate 100 and the sealing plate 500, and the sealing plate 500 has a second detection hole 510; the position of the second detection hole 510 corresponds to the position of the first detection hole 110.

[0036] Specifically, in this embodiment, the bottom wall of the mounting plate 100 is provided with a communicating light-shielding groove 130 and a receiving groove 120; more specifically, the bottom wall of the mounting plate 100 is recessed upward to form the light-shielding groove 130, and the bottom wall of the light-shielding groove 130 is recessed upward to form the receiving groove 120. The sealing plate 500 and the mounting plate 100 are detachably connected by screws; the screws pass through the sealing plate 500 and are threadedly connected to the mounting plate 100.

[0037] The sealing plate 500 is embedded in the mounting plate 100, which prevents light from entering the detection mechanism 300 through the side gap of the light shield 400.

[0038] In the optional solution provided by this utility model embodiment, a first sealing member 610 is installed on the surface of the sealing plate 500 opposite to the bottom wall of the light-shielding groove 130, and the first sealing member 610 surrounds the outer periphery of the second detection hole 510.

[0039] Specifically, the first sealing element 610 is configured as a sealing ring. The top wall of the sealing plate 500 is provided with a first mounting groove, which surrounds the outer periphery of the second detection hole 510, and the first sealing element 610 is installed in the first mounting groove.

[0040] A first sealing element 610 is sandwiched between the light-shielding plate 400 and the sealing plate 500 to ensure that the light-shielding plate 400 is in contact with the first sealing element 610 even when it is rotating, so that no light will leak when the light-shielding plate 400 is rotating.

[0041] In the optional embodiment of this utility model, the detection device includes a detection head 710 and a sealing plate 720; the detection head 710 is embedded in the side of the sealing plate 500 away from the mounting plate 100, and the sealing plate 720 is installed on the mounting plate 100 and pressed against the outer periphery of the detection head 710; the detection head 710 is elastic.

[0042] Specifically, the detection head 710 is made of soft silicone, which is elastic, deformable under pressure, and self-recovering. Further details can be found at [link to documentation]. Figure 3 The outer wall of the detection head 710 is provided with a limiting protrusion 711, and the sealing plate 720 is connected to the sealing plate 500 and pressed under the limiting protrusion 711. When using this detection device for detection, first move the mounting plate 100 until the detection head 710 is aligned with the groove of the reagent strip, and then drive the mounting plate 100 to descend until the detection head 710 completely covers the groove of the reagent strip; the servo motor 200 drives the light shield 400 to rotate to the open state, and after opening the first search hole, the detection mechanism 300 performs detection and outputs the detection structure; after the detection is completed, the servo motor 200 drives the light shield 400 to rotate to the light shield state, thereby preventing the detection mechanism 300 from being exposed.

[0043] The detection head 710 is made of soft silicone and can tightly wrap around the groove of the reagent strip (not shown in the figure), thus avoiding the problem of exposure caused by gaps between the detection head 710 and the groove of the reagent strip. The detection head 710 is embedded in the sealing plate 500 and then pressed tightly by the sealing pressure plate 720. Since the detection head 710 is made of soft silicone, the deformation after being pressed eliminates the direct gap between the detection head 710 and the sealing plate 500, thus avoiding the problem of light leakage from the detection head 710.

[0044] In the optional solution provided by this utility model embodiment, a second sealing element 620 is sandwiched between the servo motor 200 and the mounting plate 100.

[0045] Specifically, the second seal 620 is configured as a sealing ring.

[0046] A second seal 620 is placed between the servo motor 200 and the mounting plate 100 to prevent light leakage due to gaps at the contact surfaces.

[0047] In the optional solution provided by this utility model embodiment, a third sealing element 630 is sandwiched between the detection mechanism 300 and the mounting plate 100.

[0048] Specifically, the third seal 630 is configured as a sealing ring. Furthermore, the top wall of the mounting plate 100 is provided with a second mounting groove, and the third seal 630 is embedded in the second mounting groove.

[0049] A third seal 630 is placed between the testing mechanism 300 and the mounting plate 100 to prevent light leakage due to gaps at the contact surfaces.

[0050] In the optional embodiment of this utility model, the detection device further includes a horizontal drive assembly 800 and a vertical drive assembly 900; along the vertical direction, the detection mechanism 300 and the servo motor 200 are mounted on the top of the mounting plate 100, and the light shield 400 is located at the bottom of the mounting plate 100; the vertical drive assembly 900 is drivenly connected to the mounting plate 100 to drive the mounting plate 100 to move in the vertical direction; the horizontal drive assembly 800 is drivenly connected to the vertical drive assembly 900 to drive the vertical drive assembly 900 to move in the horizontal direction; the horizontal drive assembly 800 and the vertical drive assembly 900 are signal connected to the feedback module.

[0051] Specifically, see Figure 1 The horizontal drive assembly 800 includes a first drive source 810, a driving wheel, a driven wheel 820, a timing belt 830, and a slide table. The first drive source 810 is connected to the driving wheel, and the driving wheel and the driven wheel 820 are connected via the timing belt 830. The slide table is mounted on the timing belt 830, and the vertical drive assembly 900 is mounted on the slide table. The first drive source 810 is configured as a stepper motor. The vertical drive assembly 900 includes a second drive source 940, a lead screw, a T-shaped lead screw nut, a guide rail 910, a slider 920, and an adapter plate 930. The second drive source 940 is mounted on the slide table and connected to the lead screw, driving the lead screw to rotate. The lead screw is threadedly connected to the T-shaped lead screw nut, and when the lead screw rotates, it drives the T-shaped lead screw nut to rise and fall. The guide rail 910 is connected to the slide table and extends vertically. The slider 920 is slidably engaged with the guide rail 910 and connected to the T-shaped lead screw nut and the adapter plate 930. The adapter plate 930 is vertically connected to the mounting plate 100. The second drive source 940 is configured as a motor.

[0052] The first drive source 810 drives the active wheel to rotate, and the active wheel drives the synchronous belt 830 to rotate through the passive wheel 820. The synchronous belt 830 is connected to the vertical drive assembly 900, enabling the horizontal drive assembly 800 to drive the vertical drive assembly 900 to move horizontally. Because the mounting plate 100 is connected to the vertical drive assembly 900, the horizontal drive assembly 800 drives the mounting plate 100 to move horizontally. The second drive source 940 drives the lead screw to rotate, and the lead screw drives the T-shaped lead screw nut to rise and fall. The T-shaped lead screw nut drives the slider 920 to rise and fall, where the guide rail 910 guides the slider 920. The slider 920 drives the adapter plate 930 to rise and fall, and the adapter plate 930 drives the mounting plate 100 to rise and fall, enabling the detection mechanism 300 to be raised and lowered.

[0053] The following describes how to use this detection device: After incubation is complete, the first drive source 810 drives the detection mechanism 300 to move horizontally to the detection position, so that the detection head 710 is aligned with the groove of the reagent strip; then the second drive source 940 drives the detection mechanism 300 to move vertically downward until the detection head 710 completely covers the groove of the reagent strip; then the servo motor 200 drives the light shield 400 to rotate to the open state, opening the first detection hole 110, and the detection mechanism 300 performs detection and outputs the detection result; after the detection is completed, the servo motor 200 drives the light shield 400 to rotate to the light shield state, thereby preventing the detection mechanism 300 from being exposed.

[0054] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A detection device, characterized in that, include: Mounting plate (100), servo motor (200), detection mechanism (300) and sunshade (400); The mounting plate (100) has a first detection hole (110), and the detection mechanism (300) is mounted on the mounting plate (100) and is positioned corresponding to the first detection hole (110); The servo motor (200) is mounted on the mounting plate (100) and is located on the same side of the mounting plate (100) as the detection mechanism (300). The drive shaft of the servo motor (200) passes through the mounting plate (100) and is connected to the light shield (400) in a transmission manner. The light shield (400) has a light shielding state that covers the first detection hole (110) and an open state that opens the first detection hole (110). The servo motor (200) drives the light shield (400) to rotate so that the light shield (400) switches between the light shielding state and the open state.

2. The detection device according to claim 1, characterized in that, The light-shielding plate (400) includes a transmission part (410), a connecting part (420) and a light-shielding part (430), and the two ends of the connecting part (420) are respectively connected to the transmission part (410) and the light-shielding part (430); The transmission unit (410) is connected to the drive shaft of the servo motor (200), and the light-shielding unit (430) has the light-shielding state and the open state.

3. The detection device according to claim 2, characterized in that, The end face of the transmission part (410) away from the connecting part (420) is configured as a first arc surface (411), and the first arc surface (411) protrudes in a direction away from the connecting part (420); The end face of the light-shielding part (430) away from the connecting part (420) is configured as a second arc surface (431), and the second arc surface (431) protrudes in a direction away from the connecting part (420); The radius of the first arc surface (411) is smaller than the radius of the second arc surface (431).

4. The detection device according to claim 1, characterized in that, The mounting plate (100) has a receiving groove (120) on the side opposite to the detection mechanism (300), and the light shield (400) is located in the receiving groove (120).

5. The detection device according to claim 1, characterized in that, The detection device includes a sealing plate (500), and the mounting plate (100) has a light-shielding groove (130) on the side opposite to the detection mechanism (300). The sealing plate (500) is embedded in the light-shielding groove (130), the light-shielding plate (400) is located between the mounting plate (100) and the sealing plate (500), and the sealing plate (500) has a second detection hole (510). The position of the second detection hole (510) corresponds to the position of the first detection hole (110).

6. The detection device according to claim 5, characterized in that, A first sealing element (610) is installed on the surface of the sealing plate (500) opposite to the bottom wall of the light-shielding groove (130), and the first sealing element (610) surrounds the outer periphery of the second detection hole (510).

7. The detection device according to claim 5, characterized in that, The detection device includes a detection head (710) and a sealing plate (720); The detection head (710) is embedded in the sealing plate (500) on the side opposite to the mounting plate (100), and the sealing pressure plate (720) is installed on the mounting plate (100) and pressed against the outer periphery of the detection head (710); The detection head (710) is elastic.

8. The detection device according to claim 1, characterized in that, A second seal (620) is sandwiched between the servo motor (200) and the mounting plate (100). And / or, a third seal (630) is sandwiched between the detection mechanism (300) and the mounting plate (100).

9. The detection device according to claim 1, characterized in that, The servo motor (200) has a position feedback module.

10. The detection device according to claim 9, characterized in that, The detection device also includes a horizontal drive assembly (800) and a vertical drive assembly (900). In the vertical direction, the detection mechanism (300) and the servo motor (200) are mounted on the top of the mounting plate (100), and the light shield (400) is located at the bottom of the mounting plate (100); The vertical drive assembly (900) is connected to the mounting plate (100) for driving the mounting plate (100) to move in the vertical direction; The horizontal drive assembly (800) is connected to the vertical drive assembly (900) to drive the vertical drive assembly (900) to move in the horizontal direction; The horizontal drive component (800) and the vertical drive component (900) are signal-connected to the position feedback module.

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