Sample transfer mechanism and detection equipment

Abstract

The invention provides a sample transfer mechanism and detection equipment, the sample transfer mechanism comprises a cavity, a ventilation assembly, a sealing assembly and a movement assembly located in the cavity, the cavity is provided with a ventilation hole and two transfer windows, and the movement assembly comprises an objective table; the objective table can move from one transfer window to the other transfer window, the sealing assembly comprises two sealing plates, the two sealing plates are located at the two transfer windows respectively, the sealing plates can seal the transfer windows, and the sealing plates can move away from the transfer windows. The ventilation assembly can replace air in the cavity through the ventilation holes. According to the sample transfer mechanism and the detection equipment, the working environment of the detection operation room is effectively prevented from being influenced in the sample transfer process, the accuracy of a detection result is improved, and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sample detection, and in particular to a sample transfer mechanism and detection equipment. Background Art

[0002] In the process of nucleic acid detection equipment testing samples, the samples must be purified, separated, pipetted, and filmed before being tested. In order to complete the entire testing process, multiple testing rooms are sometimes required. For example, after the samples are purified, separated, pipetted, and filmed in one testing room, the samples are transferred to another testing room, and the processed samples are tested using the corresponding detector. At present, manual operations are usually used to transfer samples from one testing room to another. In this process, the door of a testing room is opened first, and after the sample is manually taken out, the door of another testing room is opened, so that the sample is placed in a set position in the testing room. This way of transferring samples will cause the testing room to directly contact the external environment on site when the door of the testing room is opened, especially the air in the testing room will communicate with the external air on site, so that the normal working environment in the testing room is polluted, which will affect the accuracy of the test results. In addition, this way of transferring samples will also lead to low efficiency in transferring samples, and ultimately low detection efficiency. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a sample transfer mechanism that can improve detection accuracy.

[0004] To achieve the above-mentioned purpose, the present invention provides a sample transfer mechanism, including a cavity, a ventilation component, a sealing component, and a moving component located in the cavity, wherein the cavity is provided with a ventilation hole and two transfer windows, the moving component includes a stage, and the stage can move from one transfer window to another transfer window, the sealing component includes two sealing plates, the two sealing plates are respectively located at the two transfer windows, the sealing plates can block the transfer windows, and the sealing plates can be moved away from the transfer windows, and the ventilation component can replace the air in the cavity through the ventilation hole.

[0005] Furthermore, there are two ventilation holes, which are respectively an air inlet hole and an air outlet hole. The ventilation component includes an air inlet pipe and an air outlet pipe. One end of the air inlet pipe is connected to the air inlet hole, one end of the air outlet pipe is connected to the air outlet hole, the other end of the air inlet pipe is connected to the air inlet module, the air inlet module includes an air inlet filter, the other end of the air outlet pipe is connected to the air outlet module, and the air outlet module includes an air outlet filter.

[0006] Furthermore, the air intake module also includes an air intake groove body, the other end of the air intake pipe is connected to the side wall of the air intake groove body, and the air intake filter is arranged at the opening of the air intake groove body; the air outlet module also includes an air outlet groove body, the air outlet pipe is connected to the side wall of the air outlet groove body, and the air outlet filter is arranged at the opening of the air outlet groove body.

[0007] Furthermore, an air supply fan is provided at the opening of the air inlet slot body, and an air exhaust fan is provided at the opening of the air outlet slot body.

[0008] Furthermore, the motion assembly also includes a transmission drive motor installed in the cavity, a driving wheel installed on the output shaft of the transmission drive motor, a driven wheel arranged in the cavity, and a transmission belt installed on the driving wheel and the driven wheel, and the loading platform is connected to the transmission belt.

[0009] Furthermore, the motion assembly also includes a transfer rail disposed in the cavity, and the loading platform includes a slider, and the slider cooperates with the transfer rail.

[0010] Furthermore, the closed component also includes two lead screws, two nuts respectively matched with the two lead screws, two closed drive motors respectively used to drive the two lead screws to rotate, two moving blocks respectively connected with the two nuts, and a closed guide rail, the moving block includes a closed slider, the closed slider matches with the closed guide rail, and the two closed plates are respectively installed on the two moving blocks.

[0011] As described above, the sample transfer mechanism of the present invention has the following beneficial effects:

[0012] When the sample transfer mechanism is in use, its two transfer windows correspond to the two detection operating chambers respectively; in the initial state, the two closing plates block the two transfer windows respectively, and the sample to be transferred is located in one of the detection operating chambers, the closing plate is moved away from the transfer window corresponding to the detection operating chamber to open the transfer window, and the sample enters the stage in the cavity through the opened transfer window, the closing plate is reset to block the opened transfer window, and the stage drives the sample to move from the transfer window to the other transfer window, the closing plate at the other transfer window is moved away to open the other transfer window, and the sample enters the other detection operating chamber from the other transfer window, and in the process from the reset of one closing plate to the removal of the other closing plate, the ventilation component will be The air in the cavity is replaced through the ventilation holes to replace the air entering the cavity from one detection operation room with clean air, thereby ensuring that after the other closing plate is removed and the sample enters the other detection operation room from the cavity, the clean air in the cavity will not affect the air quality in the other detection operation room, avoiding the air in one detection operation room entering the other detection operation room during the sample transfer process and polluting the working environment in the other detection operation room, and avoiding the situation in which the two detection operation rooms are directly in contact with the outside air by directly opening the two detection operation rooms for sample transfer, thereby causing the working environment in the two detection operation rooms to be polluted, thereby ultimately improving the accuracy of the detection and the quality of the on-site working environment.

[0013] Another technical problem to be solved by the present invention is to provide a detection device that can improve detection accuracy.

[0014] To achieve the above-mentioned purpose, the present invention provides a detection device, including two detection working chambers, and the detection device also includes the sample transfer mechanism, the two transfer windows respectively correspond to the two detection working chambers, and when the closing plate is removed from the transfer window, the interior of the cavity is connected to the interior of the detection working chamber through the transfer window.

[0015] Furthermore, a clamping jaw support seat and a clamping jaw are provided in the detection working room, and the clamping jaw includes a support plate located on the clamping jaw support seat, a clamping drive cylinder installed on the support plate, a connecting head installed on the clamping drive cylinder, and two clamping plates, the two clamping plates are respectively located on both sides of the support plate, and the upper ends of the two clamping plates are connected to the clamping drive cylinder, and the lower ends of the two clamping plates are located below the support plate.

[0016] Furthermore, the support plate is provided with two positioning holes, and the clamping jaw support seat is provided with two supporting shafts, and the ends of the two supporting shafts are respectively inserted into the two positioning holes.

[0017] As described above, the detection device according to the present invention has the following beneficial effects:

[0018] This testing equipment, based on the design of such a sample transfer mechanism, can effectively prevent the two testing rooms from directly contacting the outside air during the process of transferring the sample from one testing room to another testing room, causing the air quality in the two testing rooms and the outside air quality to be affected, avoiding the impact on the corresponding testing process, improving the accuracy of the test, and avoiding the impact on the on-site environment, improving the safety of on-site operations, etc. Moreover, this testing equipment, based on the design of such a sample transfer mechanism, can also effectively prevent the air in one testing room from entering another testing room during the sample transfer process, ensuring that the two testing rooms do not affect each other, thereby also improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the sample transfer mechanism in an embodiment of the present invention.

[0020] Figure 2 Schematic diagram of the structure of the motion component in an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the moving component and the closing component in an embodiment of the present invention.

[0022] Figure 4 Schematic diagram of the structure of the sealing component in the embodiment of the present invention.

[0023] Figure 5 Schematic diagram of the structure of the ventilation component in an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure in which the clamping jaws are placed on a clamping jaw support seat located in the detection operation room in an embodiment of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure when the clamp grasps the PCR plate in an embodiment of the present invention.

[0026] Figure 8 Schematic diagram of the structure of the detection device in the embodiment of the present invention.

[0027] Component number description

[0028] 1 Cavity 36 Enclosed rail

[0029] 11 Transfer Window 4 Motion Components

[0030] 2 Ventilation assembly 41 Stage

[0031] 21 Intake pipe 411 Slider

[0032] 22 air outlet pipe 42 transmission drive motor

[0033] 23 Intake module 43 Driving wheel

[0034] 231 Intake filter 44 Driven wheel

[0035] 232 air intake tank 45 transmission belt

[0036] 24 Air outlet module 46 Transfer rail

[0037] 241 Air outlet tank 5 Testing room

[0038] 242 exhaust fan 6 clamp

[0039] 3 Closure assembly 61 Support plate

[0040] 31 Closing plate 62 Clamping drive cylinder

[0041] 32 screw 63 connector

[0042] 33 Nut 64 Clamping plate

[0043] 34 Enclosed drive motor 7 Gripper support seat

[0044] 35 Moving block 71 Support shaft

[0045] 351 Blocked Slide 8 PCR Plates DETAILED DESCRIPTION

[0046] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0047] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0048] like Figures 1 to 8As shown, this embodiment provides a sample transfer mechanism, including a cavity 1, a ventilation component 2, a sealing component 3, and a moving component 4 located in the cavity 1, the cavity 1 is provided with a ventilation hole and two transfer windows 11, the moving component 4 includes a stage 41, the stage 41 can move from one transfer window 11 to another transfer window 11, the sealing component 3 includes two sealing plates 31, the two sealing plates 31 are respectively located at the two transfer windows 11, the sealing plates 31 can block the transfer windows 11, and the sealing plates 31 can be removed from the transfer windows 11, and the ventilation component 2 can replace the air in the cavity 1 through the ventilation hole. When the sample transfer mechanism is in use, its two transfer windows 11 correspond to the two detection chambers 5 respectively; in the initial state, the two closing plates 31 close the two transfer windows 11 respectively, and the sample to be transferred is located in one of the detection chambers 5, the closing plate 31 is moved away from the transfer window 11 corresponding to the detection chamber 5 to open the transfer window 11, and the sample enters the stage 41 in the cavity 1 through the opened transfer window 11, the closing plate 31 is reset to close the opened transfer window 11, the stage 41 drives the sample to move from the transfer window 11 to the other transfer window 11, the closing plate 31 at the other transfer window 11 is moved away to open the other transfer window 11, the sample enters the other detection chamber 5 from the other transfer window 11, and after one closing plate 31 is reset to the other closing plate 31 is moved away During the process, the ventilation component 2 will replace the air in the cavity 1 through the ventilation holes to replace the air entering the cavity 1 from one detection operation chamber 5 with clean air, thereby ensuring that after the other closing plate 31 is removed and the sample enters the other detection operation chamber 5 from the cavity 1, the clean air in the cavity 1 will not affect the air quality in the other detection operation chamber 5, avoiding the air in one detection operation chamber 5 entering the other detection operation chamber 5 and affecting the air quality in the other detection operation chamber 5 during the sample transfer process, and avoiding the situation in which the two detection operation chambers 5 are directly in contact with the outside air by directly opening the two detection operation chambers 5 for sample transfer, thereby affecting the air quality in the two detection operation chambers 5 and the outside environment, thereby improving the accuracy of the final sample detection and the quality of the on-site working environment.

[0049] like Figure 1 and Figure 5As shown, in this embodiment, there are two ventilation holes, which are an air inlet and an air outlet respectively. The ventilation assembly 2 includes an air inlet pipe 21 and an air outlet pipe 22. One end of the air inlet pipe 21 is connected to the air inlet, one end of the air outlet pipe 22 is connected to the air outlet, and the other end of the air inlet pipe 21 is connected to the air inlet module 23. The air inlet module 23 includes an air inlet filter 231. The other end of the air outlet pipe 22 is connected to the air outlet module 24. The air outlet module 24 includes an air outlet filter. During the ventilation process, the new air is filtered by the air inlet filter 231 of the air inlet module 23, and then enters the cavity 1 through the air inlet pipe 21 and the air inlet, while the original air in the cavity 1 flows out of the cavity 1 through the air outlet and the air outlet pipe 22, and is filtered by the air outlet filter when flowing through the air outlet module 24, and then discharged to the set area. This method of replacing the air in the cavity 1 not only ensures that the new air entering the cavity 1 is clean air, but also prevents the pollutants in the original air in the cavity 1 from being directly discharged and affecting the air quality in the corresponding area. It is a very environmentally friendly operation method. Figure 5 As shown, in this embodiment, the air intake module 23 also includes an air intake slot 232, the other end of the air intake pipe 21 is connected to the side wall of the air intake slot 232, and the air intake filter 231 is arranged at the opening of the air intake slot 232; the air outlet module 24 also includes an air outlet slot 241, the air outlet pipe 22 is connected to the side wall of the air outlet slot 241, and the air outlet filter is arranged at the opening of the air outlet slot 241. The air intake module 23 and the air outlet module 24 adopt this slot-type structural design and corresponding position design, which effectively improves the filtering efficiency of the filter, ensures that the filter has a good filtering effect on the flowing air, and ensures that the required air can flow smoothly, and also facilitates the assembly of the filter. In addition, in this embodiment, an air supply fan is also provided at the opening of the air intake slot 232, and an exhaust fan 242 is also provided at the opening of the air outlet slot 241. During the process of replacing the air in the cavity 1, the air supply fan will form an air supply effect at the opening of the air inlet slot 232 to send the outside air into the air inlet pipe 21 and the cavity 1 through the opening of the air inlet slot 232, and the outside air will be filtered by the air inlet filter 231 during this process; at the same time, the exhaust fan 242 will form an exhaust effect at the opening of the air outlet slot 241 to extract the original air in the cavity 1, and during this process, the outflowing air will be filtered by the air outlet filter and then discharged into the outside atmosphere. In this embodiment, the air supply fan is used for air supply and the exhaust fan 242 is used for exhaust operation, which improves the efficiency of replacing the air in the cavity 1. In this embodiment, the air inlet slot 232 and the air outlet slot 241 are fixed together. And the top wall of the cavity 1 is provided with two transfer windows 11, and the two transfer windows 11 are spaced apart in the left and right directions. And the air inlet and the air outlet are respectively located on the left and right side walls of the cavity 1.

[0050] like Figure 2 and Figure 3As shown, in this embodiment, the motion assembly 4 also includes a transfer drive motor 42 installed in the cavity 1, a driving wheel 43 installed on the output shaft of the transfer drive motor 42, a driven wheel 44 arranged in the cavity 1, and a transmission belt 45 installed on the driving wheel 43 and the driven wheel 44, and the stage 41 is connected to the transmission belt 45. During the sample transfer process, the transfer drive motor 42 drives the driving wheel 43 to rotate, the driving wheel 43 drives the transmission belt 45 and the driven wheel 44 to rotate, and the transmission belt 45 drives the stage 41 to move, so that the stage 41 can move from one transfer window 11 to another transfer window 11. At the same time, as Figure 2 and Figure 3 As shown, in this embodiment, the motion component 4 also includes a transfer rail 46 disposed in the cavity 1, and the stage 41 includes a slider 411, which cooperates with the transfer rail 46. During the movement of the stage 41, the slider 411 will slide along the transfer rail 46. The cooperation relationship between the slider 411 and the transfer rail 46 can ensure that the stage 41 moves accurately along the set path, thereby improving the movement stability of the stage 41, avoiding the sample spilling during the transfer process, and improving the operation stability and safety. In addition, the cooperation relationship between the slider 411 and the transfer rail 46 in this embodiment can play a role in bearing the weight of the stage 41, so that the transmission belt 45 only needs to pull the stage 41 to move along the transfer rail 46. Two stage in-position sensors are also provided in the cavity 1 of the present embodiment. In the initial state, when the stage 41 is in a position corresponding to one of the transfer windows 11, one of the stage in-position sensors will sense the stage 41 and measure that the stage 41 is in a set position; when the stage 41 moves to a position corresponding to another transfer window 11, the other stage in-position sensor will sense the stage 41 and measure that the stage 41 has moved into position accordingly.

[0051] like Figure 3 and Figure 4As shown, the sealing assembly 3 in this embodiment further includes two lead screws 32, two nuts 33 respectively matched with the two lead screws 32, two closed drive motors 34 respectively used to drive the two lead screws 32 to rotate, two moving blocks 35 respectively connected with the two nuts 33, and a closed guide rail 36, wherein the moving block 35 includes a closed slider 351, the closed slider 351 matches with the closed guide rail 36, and the two closed plates 31 are respectively mounted on the two moving blocks 35. When one of the closed drive motors 34 is running, it will drive one of the lead screws 32 to rotate, thereby driving the corresponding moving block 35 to move along the closed guide rail 36 through the corresponding nut 33, and at the same time, the moving block 35 drives the corresponding closed plate 31 to move, so as to realize that the closed plate 31 is moved away from the corresponding transfer window 11, or the closed plate 31 is moved to the corresponding transfer window 11 to block the transfer window 11. This embodiment adopts a screw transmission structure to realize the movement of the closing plate 31, thereby improving the movement stability of the closing plate 31, ensuring that the closing plate 31 can accurately move to the corresponding transfer window 11 to accurately block the transfer window 11, and can also accurately move away from the transfer window 11 when necessary.

[0052] The sample transfer mechanism in this embodiment also includes a controller. A closed plate in-place sensor for detecting whether the closed plate 31 has moved to its proper position is also provided in the chamber 1 of this embodiment. The two stage in-place sensors and the closed plate in-place sensor feed back the detection information to the controller, and the controller controls the transfer drive motor 42 to rotate forward, reverse or stop according to the corresponding detection information, and controls the corresponding closed drive motor 34 to perform the corresponding action.

[0053] like Figure 8 As shown, this embodiment provides a detection device, including two detection operation chambers 5, and the detection device also includes a sample transfer mechanism, two transfer windows 11 respectively corresponding to the two detection operation chambers 5, when the closing plate 31 is removed from the transfer window 11, the interior of the cavity 1 is connected to the interior of the detection operation chamber 5 through the transfer window 11. Based on the design of this sample transfer mechanism, in the process of transferring the sample in one of the detection operation chambers 5 to the other detection operation chamber 5, this detection device can effectively avoid the two detection operation chambers 5 from directly contacting with the outside air, causing the air quality in the two detection operation chambers 5 and the outside air quality to be affected, avoiding affecting the corresponding detection process, improving the accuracy of the detection, and avoiding affecting the on-site environment, improving the safety of on-site operations, etc. Moreover, based on the design of this sample transfer mechanism, this detection device can also effectively prevent the air in one detection operation chamber 5 from entering the other detection operation chamber 5 during the sample transfer process, ensuring that the two detection operation chambers 5 do not affect each other, thereby also improving the accuracy of the detection.

[0054] In this embodiment, the sample transfer mechanism is arranged at the bottom of the two detection operation rooms 5, and the two transfer windows 11 can also be regarded as openings on the bottom walls of the two detection operation rooms 5. The ventilation assembly 2, the motion assembly 4 and the closing assembly 3 are all located below the bottom walls of the two detection operation rooms 5, forming a sunken window transfer structure as a whole. At the same time, a corresponding mechanical arm and a clamp 6 connected to the mechanical arm are arranged in the detection operation room 5. In the process of transferring the sample in the detection operation room 5 to the stage 41 in the cavity 1, or transferring the sample on the stage 41 to another detection operation room 5, the mechanical arm is used to drive the clamp 6 to move to the PCR plate 8 containing the sample, and the lower end of the clamp 6 grabs the PCR plate 8. The mechanical arm then drives the clamp 6 and the PCR plate 8 to move to the set position, and the lower end of the clamp 6 releases the PCR plate 8 to realize the corresponding transportation of the sample. In this transportation process, the lower end of the clamp 6 needs to extend into the cavity 1 through the transfer window 11, so the clamp 6 will be longer than the commonly used clamp 6. When this type of clamp 6 is stored after use, if the clamp 6 is simply placed on the clamp support seat 7 in the inspection operation room 5 so that the lower ends of the two clamping plates 64 of the clamp 6 are directly in contact with the clamp support seat 7 to support the clamp 6, the clamp 6 will easily fall over due to the excessive length of the clamping plates 64 of the clamp 6 and the high center of gravity of the clamp 6. In particular, the clamp 6 is easily caused to fall over during the connection and disconnection process between the clamp 6 and the robot arm, which makes it difficult to normally connect the robot arm and the clamp 6. For this reason, if Figure 6 and Figure 7As shown, the clamping jaw 6 in this embodiment includes a support plate 61 located on the clamping jaw support seat 7, a clamping drive cylinder 62 installed on the support plate 61, a connecting head 63 installed on the clamping drive cylinder 62, and two clamping plates 64, the two clamping plates 64 are respectively located on both sides of the support plate 61, and the upper ends of the two clamping plates 64 are connected to the clamping drive cylinder 62, and the lower ends of the two clamping plates 64 are located below the support plate 61. That is, in the present embodiment, when the jaw 6 is stored, the support plate 61 of the jaw 6 is located on the jaw support seat 7, and the contact between the added support plate 61 and the jaw support seat 7 is utilized to realize the storage of the jaw 6 on the jaw support seat 7. The support plate 61 is much higher than the lower end position of the clamping plate 64, which is equivalent to lifting the point where the jaw 6 is supported by the force from the lower end of the original clamping plate 64 upward to the support plate 61. This force-bearing mode can effectively prevent the jaw 6 from tipping over due to the clamping plate 64 being too long and the center of gravity being too high, thereby ensuring that the jaw 6 can stand stably on the jaw support seat 7, and further ensuring that the subsequent connector 63 of the jaw 6 can be accurately and smoothly connected to the robotic arm. In addition, in this embodiment, two positioning holes are provided on the support plate 61, and two support shafts 71 are provided on the clamping jaw support seat 7. The ends of the two support shafts 71 are respectively inserted into the two positioning holes to achieve accurate positioning of the clamping jaw 6 in its placement state, to ensure that the subsequent mechanical arm can accurately dock with the connector 63 of the clamping jaw 6, and to prevent the clamping jaw 6 from tipping over. In addition, in this embodiment, the clamping drive cylinder 62 is specifically a pneumatic cylinder, and the piston rod of the clamping drive cylinder 62 will drive the two clamping plates 64 to move closer or farther from each other, thereby clamping and loosening the PCR plate 8 containing the sample.

[0055] In this embodiment, the detection device can be a nucleic acid detection device for identifying a person, that is, a DNA detection device. The use of such a sample transfer mechanism can effectively avoid the situation where the working environment of the detection room is polluted, improve the accuracy of the test results, and greatly improve the transfer efficiency, thereby also improving the detection efficiency. In other embodiments, the detection device can also be a nucleic acid detection device for other purposes.

[0056] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0057] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A sample transfer mechanism, characterized in that: The invention comprises a cavity (1), a ventilation component (2), a sealing component (3), and a moving component (4) located in the cavity (1); the cavity (1) is provided with a ventilation hole and two transfer windows (11); the moving component (4) comprises a loading platform (41); the loading platform (41) can move from one transfer window (11) to another transfer window (11); the sealing component (3) comprises two sealing plates (31); the two sealing plates (31) are respectively located at the two transfer windows (11); the sealing plates (31) can block the transfer windows (11), and the sealing plates (31) can be moved away from the transfer windows (11); the ventilation component (2) can replace the air in the cavity (1) through the ventilation hole.

2. The sample transfer mechanism according to claim 1, characterized in that: There are two ventilation holes, which are an air inlet hole and an air outlet hole respectively. The ventilation component (2) comprises an air inlet pipe (21) and an air outlet pipe (22). One end of the air inlet pipe (21) is connected to the air inlet hole, and one end of the air outlet pipe (22) is connected to the air outlet hole. The other end of the air inlet pipe (21) is connected to an air inlet module (23), and the air inlet module (23) comprises an air inlet filter (231). The other end of the air outlet pipe (22) is connected to an air outlet module (24), and the air outlet module (24) comprises an air outlet filter.

3. The sample transfer mechanism according to claim 2, characterized in that: The air intake module (23) further comprises an air intake slot body (232), the other end of the air intake pipe (21) being connected to the side wall of the air intake slot body (232), and the air intake filter (231) being arranged at the opening of the air intake slot body (232); the air outlet module (24) further comprises an air outlet slot body (241), the air outlet pipe (22) being connected to the side wall of the air outlet slot body (241), and the air outlet filter being arranged at the opening of the air outlet slot body (241).

4. The sample transfer mechanism according to claim 3, characterized in that: An air supply fan is also provided at the opening of the air inlet slot body (232), and an air exhaust fan (242) is also provided at the opening of the air outlet slot body (241).

5. The sample transfer mechanism according to claim 1, characterized in that: The motion assembly (4) further comprises a transmission drive motor (42) installed in the cavity (1), a driving wheel (43) installed on the output shaft of the transmission drive motor (42), a driven wheel (44) arranged in the cavity (1), and a transmission belt (45) installed on the driving wheel (43) and the driven wheel (44), and the loading platform (41) is connected to the transmission belt (45).

6. The sample transfer mechanism according to claim 5, characterized in that: The motion assembly (4) further comprises a transfer guide rail (46) arranged in the cavity (1); the object carrier (41) comprises a slider (411), and the slider (411) cooperates with the transfer guide rail (46).

7. The sample transfer mechanism according to claim 1, characterized in that: The closing assembly (3) further comprises two lead screws (32), two nuts (33) respectively matched with the two lead screws (32), two closed drive motors (34) respectively used to drive the two lead screws (32) to rotate, two moving blocks (35) respectively connected with the two nuts (33), and a closed guide rail (36), wherein the moving block (35) comprises a closed slider (351), the closed slider (351) matches with the closed guide rail (36), and the two closing plates (31) are respectively mounted on the two moving blocks (35).

8. A testing device, comprising two testing chambers (5), characterized in that: It also includes the sample transfer mechanism as described in claim 1, the two transfer windows (11) respectively correspond to the two detection working chambers (5), and when the closing plate (31) is removed from the transfer window (11), the interior of the cavity (1) is communicated with the interior of the detection working chamber (5) through the transfer window (11).

9. The detection device according to claim 8, characterized in that: The detection operation room (5) is provided with a clamping claw support seat (7) and a clamping claw (6), wherein the clamping claw (6) comprises a support plate (61) located on the clamping claw support seat (7), a clamping drive cylinder (62) installed on the support plate (61), a connecting head (63) installed on the clamping drive cylinder (62), and two clamping plates (64), wherein the two clamping plates (64) are respectively located on both sides of the support plate (61), and the upper ends of the two clamping plates (64) are connected to the clamping drive cylinder (62), and the lower ends of the two clamping plates (64) are located below the support plate (61).

10. The detection device according to claim 9, characterized in that: The support plate (61) is provided with two positioning holes, and the clamping jaw support seat (7) is provided with two support shafts (71), and the ends of the two support shafts (71) are respectively inserted into the two positioning holes.

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