Switch cover and detection mechanism

By designing an automated lid opening and closing and detection mechanism and using a drive motor and laser detection device, the problems of complexity and error in manual operation of sample bottles are solved, automated lid opening and closing and liquid concentration detection of sample bottles are realized, and the operating efficiency and accuracy of the laboratory are improved.

CN223333013UActive Publication Date: 2025-09-12HANGZHOU DEXINPU BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422661645.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-09-12
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

In the existing technology, sample bottle processing and liquid concentration detection rely on manual operations, which makes the operations complicated, time-consuming, and prone to errors and inconsistencies, making it difficult to meet the efficiency and high precision requirements of modern laboratories.

Method used

An automated mechanism including a lid opening and closing position and a detection position is designed. A drive motor, a rotating disk and a laser detection device are used to realize automatic lid opening and closing of sample bottles and liquid concentration detection. Precise analysis is performed through photoelectric beam sensors and lasers.

Benefits of technology

It realizes the automated operation of sample bottles, improves operational efficiency and accuracy, reduces human errors, and achieves efficient and accurate liquid detection, making it suitable for high-throughput experiments.

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Abstract

The utility model provides a switch cover and a detection mechanism, comprising a frame body, a switch cover position and a detection position, the switch cover position and the detection position are respectively arranged at two sides of the frame body, and the switch cover position and the detection position are connected with the frame body; the cover opening and closing position comprises a first driving motor, a first driving wheel, a first rotating disc, a first sample bottle fixer, a first belt and a sample bottle detection device, and the first driving motor is located at the bottom of the frame body and connected with the frame body. Through coordination and cooperation of mechanical devices such as the first driving motor, the second driving motor, the first rotating disc and the second rotating disc, the cover opening, cover closing and detection steps of the sample bottle can be accurately and stably completed, and the operation efficiency and precision are greatly improved. Moreover, two paths of lasers with different wavelengths and corresponding light intensity detection sensors are adopted, so that the concentration of cells and the content of blood cells in the sample bottle can be efficiently detected, the specific absorption analysis of multi-wavelength detection is realized, and compared with the traditional detection which depends on a handheld instrument, the detection is more efficient, and the detection accuracy is improved. And errors caused by human factors are reduced.
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Description

Technical Field

[0001] The utility model relates to a mechanism, in particular to a switch cover and a detection mechanism, belonging to the technical field of biomedical detection equipment. Background Art

[0002] In modern biomedical research and clinical diagnosis, automated processing of sample bottles and detection of liquid components are key technical requirements.

[0003] In the prior art, the processing and analysis of sample bottles usually rely on manual operation. In the traditional manual operation method, the operator needs to open and close the sample bottle cap personally. This process is not only time-consuming but also prone to operational inconsistencies. Manual operation not only requires high operational precision, but also may lead to errors and inconsistencies in the sample processing process due to fatigue and instability of human hands. In addition, liquid concentration detection usually also relies on handheld instruments, which further increases the complexity and time-consuming nature of the operation. The manual operation process may include grabbing the sample bottle, opening the cap, sampling the liquid, and completing the test. Each step requires the operator to perform precisely, which is particularly challenging for high-throughput experiments. Due to the complexity of these operating steps and the high requirements for operational precision, traditional manual operations often cannot meet the needs of modern laboratories in terms of sample processing speed and accuracy. Utility Model Content

[0004] Based on the above background, the purpose of the present invention is to provide a switch cover and a detection mechanism that can be automatically operated to solve the problems described in the background technology.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0006] A switch cover and detection mechanism, comprising a frame, a switch cover position and a detection position, wherein the switch cover position and the detection position are respectively located on both sides of the frame, and the switch cover position and the detection position are both connected to the frame;

[0007] The switch cover position includes a first driving motor, a first driving wheel, a first rotating disk, a first sample bottle holder, a first belt and a sample bottle detection device, wherein the first driving motor is located at the bottom of the frame, the first driving motor is connected to the frame, the first driving wheel and the first rotating disk are both located at the upper part of the frame, the first rotating disk is connected to the frame, the rotating end of the first driving motor passes through the frame and is connected to the first driving wheel, the first driving wheel and the first rotating disk are connected by a first belt, a first sample bottle holder is provided on the upper part of the first rotating disk, the first sample bottle holder is connected to the first rotating disk, a sample bottle detection device is further provided at the lower part of the frame, the sample bottle detection device corresponds to the first sample bottle holder, and the sample bottle detection device is connected to the frame;

[0008] The detection position includes a second drive motor, a second driving wheel, a second rotating disk, a second sample bottle holder, a second belt and a laser detection device. The second drive motor is located at the bottom of the frame, the second drive motor is connected to the frame, the second driving wheel and the second rotating disk are both located at the upper part of the frame, the second rotating disk is connected to the frame, the rotating end of the second drive motor passes through the frame and is connected to the second driving wheel, the second driving wheel is connected to the second rotating disk through a second belt, a second sample bottle holder is provided on the upper part of the second rotating disk, the second sample bottle holder is connected to the second rotating disk, and a laser detection device is also provided at the lower part of the frame, the laser detection device corresponds to the second sample bottle holder, and the laser detection device is connected to the frame.

[0009] In a single cycle, both the cover opening and closing position and the detection position are operated by sample bottles.

[0010] At the lid opening and closing position, the external sample gripper first grabs the sample bottle with a cap and places it precisely on the first sample bottle holder at the lid opening and closing position. The sample gripper slightly presses down on the sample bottle. Subsequently, the first drive motor is started, and the first rotating disk is driven to rotate through the first active pulley and the first belt. At this time, the first sample bottle holder on the first rotating disk secures the sample bottle. Since the sample gripper is in a state of slightly pressing down on the sample bottle, as the rotating end of the first drive motor continues to rotate, the first sample bottle holder will also continue to rotate. At this time, the cap of the sample bottle is gradually opened, and then the sample bottle gripper grabs the cap of the sample bottle and places it in another position. Next, the sample gripper grabs the membrane cup assembly and screws it onto the uncovered sample bottle in the same way. After completion, the sample bottle is picked up again by the gripper and moved to the workstation of the cell adsorption rubbing process.

[0011] At the detection position, the gripper grabs the sample bottle and places it precisely on the second sample bottle holder at the detection position. Two lasers emit light of different wavelengths. After passing through the liquid in the sample bottle, the concentration of cells in the liquid and the content of different types of cells can be accurately analyzed based on the liquid's absorption characteristics of light of different wavelengths. Among them, the second drive motor drives the second active pulley, the second belt and the second rotating disk to ensure that the sample bottle can be rotated or adjusted as necessary during the detection process. This rotation is controlled by the second drive motor, which can ensure that the liquid in the sample bottle remains evenly distributed or in a stable position during laser detection, preventing deviations in the test results due to the unevenness of the liquid. At the same time, the second sample bottle holder plays a role in stabilizing the sample bottle during this process, ensuring that the sample bottle remains fixed and does not shift when the second rotating disk rotates.

[0012] After the cell adsorption rubbing process is completed, the sample bottle is grabbed by the gripper again and placed back on the first sample bottle holder at the switch cover position. At this time, the first drive motor is started again, and the membrane cup assembly is opened through the first active wheel, the first rotating disk and the first belt, and the original bottle cap is screwed back onto the sample bottle. Finally, the sample bottle is grabbed by the gripper and placed back to its initial position. During the whole process, the sample bottle detection device continuously monitors the entry and exit of the bottle to ensure the accuracy and smoothness of the operation. The above operations effectively complete the process of opening the sample bottle, installing the membrane cup assembly and re-closing, and are suitable for laboratory environments that require efficient processing and analysis of liquid samples.

[0013] Preferably, the sample bottle detection device is a photoelectric beam sensor.

[0014] During operation, when a sample bottle is placed on the first sample bottle holder by the gripper, the photoelectric through-beam sensor detects whether the sample bottle is correctly positioned or removed by emitting and receiving light beams. Specifically, when the sample bottle's light beam intersects the sensor's light beam, the sensor recognizes the presence of the sample bottle and confirms that the bottle has been correctly placed. Similarly, when the light beam is no longer blocked, the sensor recognizes that the sample bottle has been grasped or removed.

[0015] Preferably, the laser detection device includes two lasers emitting different wavelengths and two light intensity detection sensors, and the lasers and light intensity detection sensors correspond one to one.

[0016] The laser emits laser light of a specific wavelength, which penetrates the liquid in the sample bottle. The corresponding light intensity detection sensor receives the penetrated light, thereby achieving non-contact, fast and accurate detection.

[0017] Preferably, the first sample bottle holder and the second sample bottle holder are both provided with grooves for locking.

[0018] The groove positioning matches the shape of the sample bottle, so that the sample bottle can be accurately inserted into the first sample bottle holder or the second sample bottle holder when placed, preventing the sample bottle from shifting or shaking during rotation, opening the cover or testing, reducing the risk of damage to the sample bottle, and ensuring the stability of the liquid in the sample bottle.

[0019] Preferably, a plurality of elastic members are provided between the second rotating disk and the second sample bottle holder.

[0020] The elastic member can compensate for slight displacement and misalignment of the sample bottle in the second holder, reduce vibration caused by rotation, and improve the stability of the sample bottle, thereby preventing the sample bottle from shifting during the detection process.

[0021] Preferably, the first drive motor and the second drive motor are both stepper motors.

[0022] The stepper motor is capable of rotating in very fine increments, allowing precise control of the rotational position, ensuring that the position and angle of the sample bottle are maintained accurately during the decapping, capping and testing processes.

[0023] Preferably, the first driving wheel, the first rotating disk and the first belt are engaged with each other in a meshing manner.

[0024] The meshing can effectively transmit the rotational motion of the first driving motor to the first rotating disk through the first driving wheel, thereby avoiding slippage or looseness in power transmission.

[0025] Preferably, the second driving wheel, the second rotating disk and the second belt are engaged with each other in a meshing manner.

[0026] The meshing can effectively transmit the rotational motion of the second driving motor to the second rotating disk through the second driving wheel, thereby avoiding slippage or looseness in power transmission.

[0027] Compared with the prior art, the utility model has the following advantages:

[0028] The utility model provides an opening and closing cover and detection mechanism that realizes the automation of the opening and closing cover of the sample bottle and the detection of liquid concentration, which greatly reduces the need for manual operation. In the traditional manual operation process, the operator needs to manually open and close the bottle cap and perform detection, which is not only time-consuming and labor-intensive, but also prone to errors and operational inconsistencies. However, this mechanism can accurately and stably complete the opening, closing and detection steps through the coordination of mechanical devices such as the first drive motor, the second drive motor, the first rotating disk, and the second rotating disk, greatly improving operational efficiency and accuracy. In addition, the automation of the mechanism makes the liquid detection process more accurate. By using two lasers of different wavelengths and corresponding light intensity detection sensors, the concentration of cells and the blood cell content in the sample bottle can be efficiently detected, and specific absorption analysis of multi-wavelength detection can be realized. This is more efficient than the traditional detection that relies on handheld instruments, and reduces errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2It is a front view of the utility model;

[0032] Figure 3 It is a top view of the utility model;

[0033] Figure 4 It is a bottom view of the present utility model.

[0034] In the figure: 1. frame; 2. switch cover position; 201. first drive motor; 202. first driving wheel; 203. first rotating disk; 204. first sample bottle holder; 205. first belt; 206. sample bottle detection device; 3. detection position; 301. second drive motor; 302. second driving wheel; 303. second rotating disk; 304. second sample bottle holder; 305. second belt; 306. laser detection device; 306-1. laser; 306-2. light intensity detection sensor; 4. groove clamping position; 5. elastic member. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the technical solution of the present invention through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any form of modification and / or change made to the present invention will fall within the scope of protection of the present invention.

[0036] In this utility model, unless otherwise specified, all parts and percentages are by weight. The equipment and raw materials used are commercially available or commonly used in the art. The methods in the following embodiments, unless otherwise specified, are conventional methods in the art. The components or equipment in the following embodiments, unless otherwise specified, are all common standard parts or components known to those skilled in the art. Their structures and principles are known to those skilled in the art through technical manuals or routine experimental methods.

[0037] The following detailed description of the embodiments of the present invention is made in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments can also be implemented by those skilled in the art without these specific details.

[0038] like Figure 1 As shown, a switch cover and detection mechanism includes a frame 1, a switch cover position 2 and a detection position 3. The switch cover position 2 and the detection position 3 are respectively located on both sides of the frame 1, and the switch cover position 2 and the detection position 3 are both connected to the frame 1.

[0039] like Figure 2-Figure 3As shown, the switch cover position 2 includes a first driving motor 201, a first driving wheel 202, a first rotating disk 203, a first sample bottle holder 204, a first belt 205 and a sample bottle detection device 206. The first driving motor 201 is located at the bottom of the frame 1, and the first driving motor 201 is connected to the frame 1. The first driving wheel 202 and the first rotating disk 203 are both located at the upper part of the frame 1, and the first rotating disk 203 is connected to the frame 1. The rotating end of the first driving motor 201 passes through the frame 1 and is connected to the first driving wheel 202. The first driving wheel 202, the first rotating disk 203 and the first belt 205 are meshed with each other. The first sample bottle holder 204 is arranged on the upper part of the first rotating disk 203, and the first sample bottle holder 204 is connected to the first rotating disk 203. A sample bottle detection device 206 is also arranged at the lower part of the frame 1, and the sample bottle detection device 206 corresponds to the first sample bottle holder 204, and the sample bottle detection device 206 is connected to the frame 1.

[0040] Since the test is a continuous cycle of sampling and the test takes a certain amount of time, in order to improve the test efficiency, the cover opening and closing position and the test position are both operated by sample bottles in a single cycle.

[0041] At the lid opening and closing position 2 , the external sample gripper first grabs the sample bottle with the cover and places it accurately on the first sample bottle holder 204 at the lid opening and closing position 2 , and the sample gripper slightly presses down the sample bottle.

[0042] Next, the first drive motor 201 is activated, driving the first rotating disk 203 via the first driving pulley 202 and the first belt 205 to begin rotating. At this point, the first sample bottle holder 204 on the first rotating disk 203 secures the sample bottle. Because the sample gripper slightly presses down on the sample bottle, the first sample bottle holder 204 continues to rotate as the rotating end of the first drive motor 201 continues to rotate. At this point, the sample bottle cap is gradually opened, and the sample bottle gripper then grabs the sample bottle cap and places it elsewhere.

[0043] Next, the sample gripper grabs the membrane cup assembly again and screws it onto the sample bottle that has been removed from the cap in the same way. After completion, the sample bottle is picked up by the gripper again and moved to the workstation of the cell adsorption rubbing process. After the cell adsorption rubbing process is completed, the sample bottle is grabbed by the gripper again and placed back on the first sample bottle holder 204 at the switch cover position 2. At this time, the first drive motor 201 is started again, and the membrane cup assembly is opened through the first active wheel 202, the first rotating disk 203 and the first belt 205, and the original bottle cap is screwed back onto the sample bottle.

[0044] Finally, the sample bottle is grasped by the gripper and returned to its initial position. Throughout this process, the sample bottle detection device 206 continuously monitors the bottle's entry and exit to ensure accurate and smooth operation. The above operations effectively complete the process of opening the sample bottle cap, installing the membrane cup assembly, and resealing it, making it suitable for laboratory environments that require efficient processing and analysis of liquid samples.

[0045] The sample bottle detection device 206 is a photoelectric beam sensor. During operation, when the sample bottle is placed on the first sample bottle holder 204 by the gripper, the photoelectric beam sensor detects whether the sample bottle is correctly placed or removed by emitting and receiving light beams. Specifically, when the sample bottle's light beam is blocked by the photoelectric beam sensor, the photoelectric beam sensor recognizes the presence of the sample bottle and confirms that the bottle has been correctly placed. Similarly, when the light beam is no longer blocked, the photoelectric beam sensor recognizes that the sample bottle has been grabbed or removed.

[0046] The meshing cooperation among the first driving wheel 202, the first rotating disk 203 and the first belt 205 can effectively transmit the rotational motion of the first driving motor 201 to the first rotating disk 203 through the first driving wheel 202, thereby avoiding slippage or looseness in power transmission.

[0047] The detection position 3 includes a second driving motor 301, a second driving wheel 302, a second rotating disk 303, a second sample bottle holder 304, a second belt 305 and a laser detection device 306. The second driving motor 301 is located at the bottom of the frame 1, and the second driving motor 301 is connected to the frame 1. The second driving wheel 302 and the second rotating disk 303 are both located at the upper part of the frame 1, and the second rotating disk 303 is connected to the frame 1. The rotating end of the second driving motor 301 passes through the frame 1 and is connected to the second driving wheel 302. The second driving wheel 302, the second rotating disk 303 and the second belt 305 are meshed with each other. A second sample bottle holder 304 is provided on the upper part of the second rotating disk 303, and the second sample bottle holder 304 is connected to the second rotating disk 303. A laser detection device 306 is also provided at the lower part of the frame 1, and the laser detection device 306 corresponds to the second sample bottle holder 304, and the laser detection device 306 is connected to the frame 1.

[0048] At detection position 3, the gripper grabs the sample bottle and precisely places it on the second sample bottle holder 304 at detection position 3. Two lasers 306-1 emit light of different wavelengths. After passing through the liquid in the sample bottle, the liquid can accurately analyze the concentration of cells and the content of different cell types based on the liquid's absorption characteristics of light of different wavelengths.

[0049] like Figure 4As shown, laser detection device 306 includes two lasers 306-1 emitting different wavelengths and two light intensity detection sensors 306-2, with a one-to-one correspondence between lasers 306-1 and light intensity detection sensors 306-2. Lasers 306-1 emit laser light of a specific wavelength, which penetrates the liquid in the sample bottle. The corresponding light intensity detection sensor 306-2 receives the transmitted light, thus achieving non-contact, fast, and accurate detection.

[0050] The second drive motor 301 drives the second driving wheel 302, the second belt 305, and the second rotating disk 303 to ensure that the sample bottle can be rotated or adjusted as necessary during the detection process. This rotation is controlled by the second drive motor 301, ensuring that the liquid in the sample bottle remains evenly distributed or in a stable position during laser detection, preventing deviations in the test results due to liquid unevenness. At the same time, the second sample bottle holder 304 stabilizes the sample bottle during this process, ensuring that the sample bottle remains fixed and does not shift when the second rotating disk 303 rotates. The meshing between the second driving wheel 302, the second rotating disk 303, and the second belt 305 effectively transmits the rotational motion of the second drive motor 301 to the second rotating disk 303 via the second driving wheel 302, avoiding slippage or loosening during power transmission.

[0051] Several elastic members 5 are disposed between the second rotating disk 303 and the second sample bottle holder 304. The elastic members 5 can compensate for slight displacement and misalignment of the sample bottle in the second holder, reduce vibration caused by rotation, and improve the stability of the sample bottle, thereby preventing the sample bottle from shifting during the test process.

[0052] The first drive motor 201 and the second drive motor 301 are both stepper motors that can rotate in very fine step angles, allowing precise control of the rotational position, thereby ensuring that the position and angle of the sample bottle remain accurate during the uncapping, capping and testing processes.

[0053] The first sample bottle holder 204 and the second sample bottle holder 304 are both provided with a recessed retaining portion 4. The recessed retaining portion 4 matches the shape of the sample bottle, allowing the sample bottle to be precisely inserted into the first sample bottle holder 204 or the second sample bottle holder 304 when placed. This prevents the sample bottle from shifting or shaking during rotation, opening the lid, or testing, thereby reducing the risk of damage to the sample bottle and ensuring the stability of the liquid in the sample bottle.

[0054] The working principle of the switch cover and detection mechanism of the utility model is:

[0055] This mechanism works in conjunction with an external gripper to automatically open and close the sample bottle cap, install the membrane cup assembly, and perform testing. The entire mechanism is divided into two main functional areas: the cap opening and closing area and the testing area.

[0056] In lid opening / closing position 2, the first drive motor 201 rotates the first rotating disk 203. The first sample bottle holder 204 on the first rotating disk 203 secures the sample bottle, and the bottle cap is opened and closed by rotation. The status of the sample bottle is detected by the sample bottle detection device 206 to ensure the accuracy of the sample bottle placement or removal.

[0057] At detection position 3, the sample bottle is rotated by the second drive motor 301, and the laser detection device 306 emits two beams of laser light of different wavelengths to penetrate the liquid in the bottle. The corresponding light intensity detection sensor 306-2 detects the changes in light absorption, thereby analyzing the cell concentration and blood cell content in the liquid.

[0058] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A switch cover and detection mechanism, characterized in that: The switch cover and detection mechanism comprises a frame (1), a switch cover position (2) and a detection position (3), wherein the switch cover position (2) and the detection position (3) are respectively located on both sides of the frame (1), and the switch cover position (2) and the detection position (3) are both connected to the frame (1); The switch cover position (2) comprises a first driving motor (201), a first driving wheel (202), a first rotating disk (203), a first sample bottle holder (204), a first belt (205) and a sample bottle detection device (206), wherein the first driving motor (201) is located at the bottom of the frame (1), the first driving motor (201) is connected to the frame (1), the first driving wheel (202) and the first rotating disk (203) are both located at the top of the frame (1), the first rotating disk (203) is connected to the frame (1), and the rotating end of the first driving motor (201) is The rack (1) is connected to the first driving wheel (202), the first driving wheel (202) is connected to the first rotating disk (203) via a first belt (205), a first sample bottle holder (204) is provided on the upper part of the first rotating disk (203), the first sample bottle holder (204) is connected to the first rotating disk (203), and a sample bottle detection device (206) is further provided on the lower part of the rack (1), the sample bottle detection device (206) corresponds to the first sample bottle holder (204), and the sample bottle detection device (206) is connected to the rack (1); The detection position (3) includes a second driving motor (301), a second driving wheel (302), a second rotating disk (303), a second sample bottle holder (304), a second belt (305) and a laser detection device (306), wherein the second driving motor (301) is located at the bottom of the frame (1), the second driving motor (301) is connected to the frame (1), the second driving wheel (302) and the second rotating disk (303) are both located at the top of the frame (1), the second rotating disk (303) is connected to the frame (1), and the rotation of the second driving motor (301) The end passes through the frame (1) and is connected to the second driving wheel (302), the second driving wheel (302) is connected to the second rotating disk (303) through a second belt (305), a second sample bottle holder (304) is provided on the upper part of the second rotating disk (303), and the second sample bottle holder (304) is connected to the second rotating disk (303), and a laser detection device (306) is further provided at the lower part of the frame (1), the laser detection device (306) corresponds to the second sample bottle holder (304), and the laser detection device (306) is connected to the frame (1).

2. The switch cover and detection mechanism according to claim 1, characterized in that: The sample bottle detection device (206) is a photoelectric beam sensor.

3. The switch cover and detection mechanism according to claim 1, characterized in that: The laser detection device (306) comprises two lasers (306-1) emitting different wavelengths and two light intensity detection sensors (306-2), and the lasers (306-1) and the light intensity detection sensors (306-2) correspond to each other one by one.

4. The switch cover and detection mechanism according to claim 1, characterized in that: The first sample bottle holder (204) and the second sample bottle holder (304) are both provided with a groove clamping position (4).

5. The switch cover and detection mechanism according to claim 1, characterized in that: A plurality of elastic members (5) are arranged between the second rotating disk (303) and the second sample bottle holder (304).

6. The switch cover and detection mechanism according to claim 1, characterized in that: The first drive motor (201) and the second drive motor (301) are both stepping motors.

7. The switch cover and detection mechanism according to claim 1, characterized in that: The first driving wheel (202), the first rotating disk (203) and the first belt (205) are engaged with each other in a meshing manner.

8. The switch cover and detection mechanism according to claim 1, characterized in that: The second driving wheel (302), the second rotating disk (303) and the second belt (305) are engaged with each other in a meshing manner.