Sample transport device and sample testing system

Abstract

This utility model relates to the field of sample transfer technology, providing a sample transfer device and a sample testing system. The sample transfer device includes: a mounting plate; a turntable assembly rotatably mounted on the mounting plate; multiple first hoppers evenly distributed along the circumference of the turntable assembly; a track mounted on the mounting plate and corresponding to the turntable assembly; and a connecting component, one side of which is connected to the first hopper, and the other side of which is slidably connected to the track, ensuring that the first hoppers always remain open upwards during the rotation of the turntable assembly. The sample testing system includes: a comprehensive testing platform, which is connected to the mounting plate. The turntable assembly of this utility model can accommodate multiple first hoppers, improving sample transfer efficiency. The track on the mounting plate, through the cooperation of the connecting component and the track, ensures that the openings of the first hoppers always face upwards during the rotation of the turntable assembly, preventing samples from falling and improving space utilization and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of sample transfer technology, and in particular to a sample transfer device and a sample testing system. Background Technology

[0002] The physical properties testing of samples such as cigarette sticks and filter rods is usually conducted in a testing laboratory. With technological advancements, integrated testing benches, which combine multiple testing parameters into a single, highly automated, and smaller unit, have become commonly used equipment. The tester places a certain number of samples into the hopper of the integrated testing bench, which automatically tests various physical properties of the samples and outputs the data. To further facilitate the tester's work, the integrated testing bench can be equipped with multiple (e.g., a dozen) storage hoppers. Samples of different or the same specifications can be grouped together (e.g., 30 samples) and placed into each hopper simultaneously. After setting the parameters, the test results can be awaited.

[0003] Current multi-hopper systems use a chain-driven design with rotating wheels positioned at the top and bottom. The hoppers are evenly distributed and fixed on the chain, moving with it. In this structure, on one side of the rotating wheel (e.g., the left side), the hopper opening faces upwards, allowing sample placement; on the other side (e.g., the right side), the hopper opening faces downwards, preventing sample placement. The hopper openings at the rotating wheel can change constantly, making sample placement impossible. This design results in more than half of the hoppers being wasted; the overall device is large and occupies a lot of space; moreover, it can only detect samples sequentially from top to bottom or bottom to top. When priority testing of a certain sample size is needed, samples from the preceding hoppers must be removed; otherwise, the sample is automatically dropped as the rotating wheel moves, which is very inconvenient. Utility Model Content

[0004] This invention provides a sample transfer device and a sample testing system to solve the technical problems of low hopper utilization and poor flexibility in existing sample transfer devices.

[0005] This utility model provides a sample transfer device, comprising:

[0006] Mounting plate;

[0007] The turntable assembly is rotatably mounted on the mounting plate;

[0008] Multiple first hoppers are evenly distributed along the circumference of the turntable assembly;

[0009] A track is provided on the mounting plate and is configured corresponding to the turntable assembly;

[0010] A connecting assembly, one side of which is connected to the first hopper, and the other side of which is slidably connected to the track so that the first hopper always keeps its opening facing upward during the rotation of the turntable assembly.

[0011] According to the present invention, a sample transfer device is provided, the turntable assembly comprising:

[0012] The first turntable is rotatably connected to the mounting plate;

[0013] The second turntable is annular, and its inner ring side is detachably connected to the outer circumference of the first turntable. The outer ring side of the second turntable is evenly distributed with mounting holes for mounting the first hopper.

[0014] According to the present invention, a sample transfer device is provided.

[0015] The track is circular and is located on the outer periphery of the first turntable;

[0016] The center of the track is located below the center of the first turntable, and the line connecting the center of the track and the center of the first turntable extends vertically.

[0017] According to the sample transfer device provided by this utility model, the connecting component includes:

[0018] A connecting rod, one end of which is provided with a roller, which is disposed on the track;

[0019] A connecting shaft, one end of which is fixedly connected to the end of the connecting rod away from the roller, and the other end of which passes through the mounting hole and is rotatably connected to the mounting hole;

[0020] Support member, said support member comprising:

[0021] The pallet has grooves for fitting into the first hopper;

[0022] A connecting plate, one side of which is connected to the support plate, and the other side of which is fixedly connected to one end of the connecting shaft that protrudes from the mounting hole;

[0023] The connecting rod, the connecting shaft, and the connecting plate are all on the same plane.

[0024] According to the present invention, a sample transfer device is provided.

[0025] The connecting rod is Z-shaped and includes a first rod and a second rod that are parallel to each other, as well as a third rod that connects the first rod and the second rod.

[0026] The end of the first rod away from the third rod is rotatably connected to the roller;

[0027] The end of the second rod away from the third rod is connected to the connecting shaft;

[0028] The distance between the first rod and the mounting plate is less than the distance between the second rod and the mounting plate.

[0029] According to the sample transfer device provided by this utility model, it further includes:

[0030] Positioning pins are provided on the tray;

[0031] The first hopper has a positioning hole on the side near the positioning pin for insertion and engagement with the positioning pin.

[0032] According to the sample transfer device provided by this utility model, it further includes:

[0033] The first magnetic attraction part is disposed at one end of the positioning pin near the positioning hole;

[0034] The second magnetic attraction part is disposed in the positioning hole and is used to magnetically engage with the first magnetic attraction part.

[0035] According to the sample transfer device provided by this utility model, it further includes:

[0036] A speed reduction unit, the output end of which is connected to the first turntable;

[0037] The drive unit, the output end of which is connected to the input end of the deceleration unit, provides power for the rotation of the first turntable.

[0038] According to the sample transfer device provided by this utility model, it further includes:

[0039] The second hopper, disposed on the mounting plate, is used to dock with the first hopper and transfer the sample from the first hopper.

[0040] This utility model also provides a sample testing system, including the sample transfer device described above, and further including: a comprehensive testing platform, which is connected in conjunction with the mounting plate.

[0041] According to the present invention, a sample transfer device is provided.

[0042] The above-mentioned one or more technical solutions provided by this utility model have at least the following technical effects: multiple first hoppers can be installed on the turntable assembly of this utility model, which improves the efficiency of sample conveying; a track is provided on the mounting plate, and through the cooperation of the connecting component and the track, the opening of the first hopper can always face upward during the rotation of the turntable assembly, preventing the sample from falling out of the first hopper, thus improving space utilization and flexibility. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is one of the schematic diagrams of the sample conveying device provided in the embodiments of this utility model;

[0045] Figure 2 This is a second schematic diagram of the sample conveying device provided in this embodiment of the utility model;

[0046] Figure 3 This is one of the schematic diagrams showing the cooperation between the connecting component and the first hopper provided in this embodiment of the utility model;

[0047] Figure 4 This is the second schematic diagram of the connection component and the first hopper provided in this embodiment of the utility model.

[0048] Figure label:

[0049] 1. Mounting plate; 2. Turntable assembly; 21. First turntable; 22. Second turntable; 221. Mounting hole; 3. First hopper; 31. Positioning hole; 4. Track;

[0050] 5. Connecting assembly; 51. Connecting rod; 511. First rod body; 512. Second rod body; 513. Third rod body; 52. Roller; 53. Connecting shaft; 54. Support component; 541. Support plate; 542. Connecting plate;

[0051] 6. Positioning pin; 7. First magnetic suction unit; 8. Deceleration unit; 9. Drive unit; 10. Second hopper. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0053] The following is combined with Figures 1-4 This invention describes a sample transfer device and a sample testing system according to embodiments of the present invention.

[0054] like Figure 1-2As shown, this utility model embodiment provides a sample transfer device, including: a mounting plate 1, a turntable assembly 2, a plurality of first hoppers 3, a track 4, and a connecting assembly 5; the turntable assembly 2 is rotatably mounted on the mounting plate 1; the plurality of first hoppers 3 are evenly distributed along the circumference of the turntable assembly 2; the track 4 is mounted on the mounting plate 1 and is disposed corresponding to the turntable assembly 2; the connecting assembly 5 is connected on one side to the first hopper 3 and slidably connected on the other side to the track 4, so that the first hopper 3 always keeps its opening facing upward during the rotation of the turntable assembly 2.

[0055] Specifically, the turntable assembly 2 provided in this embodiment of the present invention can be equipped with multiple first hoppers 3, which improves the efficiency of sample conveying; a track 4 is provided on the mounting plate 1, and through the cooperation of the connecting assembly 5 and the track 4, the opening of the first hopper 3 can always face upward during the rotation of the turntable assembly 2, preventing the sample from falling out of the first hopper 3, improving space utilization and flexibility; and the device has a compact structure and small size, which is conducive to integration.

[0056] In some possible implementations, 12 or more first hoppers 3 are provided, and the number of first hoppers 3 can be flexibly adjusted according to actual testing needs.

[0057] like Figure 1-2 As shown, according to an embodiment of the present invention, a sample transfer device is provided, the turntable assembly 2 includes: a first turntable 21 and a second turntable 22; the first turntable 21 is rotatably connected to the mounting plate 1; the second turntable 22 is annular, the inner ring side of the second turntable 22 is detachably connected to the outer periphery of the first turntable 21, and the outer ring side of the second turntable 22 is evenly distributed with mounting holes 221 for mounting the first hopper 3.

[0058] In some possible implementations, the first turntable 21 is a disc-shaped structure, and the second turntable 22 is a ring-shaped structure. Both the first turntable 21 and the second turntable 22 are hollowed out and have clearance grooves and weight reduction grooves. The first turntable 21 and the second turntable 22 can be detachably connected by bolts.

[0059] It should be understood that the reason for designing the turntable assembly 2 as a detachable first turntable 21 and second turntable 22 is as follows: The center of the turntable assembly 2 needs to be aligned with the rotation center of its mounting plate 1. Multiple first hoppers 3 and connecting components 5 are also installed around the circumference of the turntable assembly 2, and the connecting components 5 need to connect with the track 4. The outer periphery also needs to be aligned with the installation position. If the turntable assembly 2 were a single unit, both the inner and outer positions would need to be aligned simultaneously. However, a single-unit turntable assembly 2 would be large, heavy, and difficult to operate. By splitting the turntable assembly 2 into the first turntable 21 and the second turntable 22, the first turntable 21 can be installed first, and after positioning, the second turntable 22 can be installed. The size and weight of the split first turntable 21 and the second turntable 22 are significantly reduced, and each installation only requires positioning on one side, greatly reducing the installation difficulty.

[0060] like Figure 1-2 As shown, according to an embodiment of the present invention, a sample transfer device is provided, wherein the track 4 is annular and is disposed on the outer periphery of the first turntable 21; wherein the center of the track 4 is located below the center of the first turntable 21, and the line connecting the center of the track 4 and the center of the first turntable 21 extends in the vertical direction.

[0061] It should be understood that the center of the track 4 is offset downward relative to the center of the first turntable 21. The offset is the distance between the centers of the shaft holes at both ends of the connecting rod 51 that are connected to the roller 52 and the connecting shaft 53, respectively. It can also be understood as the distance between the center of the circle on which the running trajectory of the mounting hole 221 is located and the center of the track 4. The center of the circle on which the running trajectory of the mounting hole 221 is located actually coincides with the center of the first turntable 21 or the second turntable 22.

[0062] like Figure 3-4 As shown, according to an embodiment of the present invention, a sample transfer device includes a connecting component 5 comprising: a connecting rod 51, a connecting shaft 53, and a support member 54; one end of the connecting rod 51 is provided with a roller 52, which is disposed on a track 4 and can roll along the track 4; one end of the connecting shaft 53 is fixedly connected to the end of the connecting rod 51 away from the roller 52, and the other end of the connecting shaft 53 passes through a mounting hole 221 and is rotatably connected to the mounting hole 221; the support member 54 includes: a support plate 541 with a groove for engaging with a first hopper 3; a connecting plate 542, one side of which is connected to the support plate 541, and the other side of which is fixedly connected to the end of the connecting shaft 53 that passes through the mounting hole 221; wherein the connecting rod 51, the connecting shaft 53, and the connecting plate 542 are on the same plane.

[0063] In some possible implementations, the two ends of the connecting shaft 53 are fixedly connected to the connecting rod 51 and the connecting plate 542 by fixing pins or fixing buckles, respectively, to realize transmission; the connecting shaft 53 passes through the mounting hole 221 and is connected to the mounting hole 221 by bearings or other connecting parts to realize the rotational connection between the connecting shaft 53 and the mounting hole 221, which facilitates the fine adjustment of the angle of the connecting rod 51 and the support 54 during the rotation of the turntable assembly 2.

[0064] In some possible implementations, the first hopper 3 is a trough with a V-shaped cross-section, and the groove of the support member 54 is also V-shaped, and the shape and angle of the groove are the same as those of the first hopper 3, so that it can cooperate with the first hopper 3; the two ends of the connecting rod 51 are respectively provided with two shaft holes, one end of which is used to install the roller 52 and the rotating shaft, and the other end of which is used to pass through the connecting shaft 53 and fix it to it.

[0065] It should be understood that the roller 52 is limited by the track 4 inside the track 4 and can only move along the extension direction of the track 4. At the same time, the track 4 and the first turntable 21 are not concentric. In other words, the center of the track 4 should be offset relative to the center of the first turntable 21, and it should be offset downwards, so that the second turntable 22 can drive the connecting rod 51 to move when it rotates. The connecting rod 51 drives the roller 52 to roll in the track 4. At the same time, since the connecting rod 51 is fixedly connected to the connecting shaft 53 and the connecting plate 542 and is located in the same plane, the roller 52 rolls along the track 4 and brings a reaction force to the connecting rod 51, the connecting shaft 53 and the connecting plate 542, so that the support 54 always remains in a vertical state, thereby keeping the opening of the first hopper 3 always facing upwards and preventing the sample from falling out.

[0066] like Figure 3 As shown, according to an embodiment of the present invention, a sample transfer device is provided, wherein the connecting rod 51 is Z-shaped and includes a first rod 511 and a second rod 512 that are parallel to each other, and a third rod 513 connected to the first rod 511 and the second rod 512; the end of the first rod 511 away from the third rod 513 is rotatably connected to a roller 52; the end of the second rod 512 away from the third rod 513 is connected to a connecting shaft 53; wherein the distance between the first rod 511 and the mounting plate 1 is less than the distance between the second rod 512 and the mounting plate 1; the first rod 511, the second rod 512 and the third rod 513 may be integrally formed.

[0067] It should be understood that since one end of the connecting rod 51 is connected to the track 4 via the roller 52 and the other end is connected to the connecting plate 542 via the connecting shaft 53, designing the connecting rod 51 into a Z-shaped crank structure can increase the distance between the second rod body 512 and the mounting plate 1, avoid positional conflict between the end of the connecting rod 51 connected to the connecting shaft 53 and the track 4, optimize the connection relationship, and save space.

[0068] like Figure 4 As shown, a sample transfer device provided according to an embodiment of the present utility model further includes: a positioning pin 6, which is disposed on a tray 541; and a positioning hole 31 is provided on the side of the first hopper 3 near the positioning pin 6 for insertion and engagement with the positioning pin 6.

[0069] In some possible implementations, the positioning pin 6 is fixedly set on the upper surface of the tray 541, and the first hopper 3 slides in the groove of the tray 541; a positioning block can also be set, with a positioning hole 31 on the positioning block, which engages with the positioning pin 6, and the positioning block is connected to the first hopper 3. After the positioning pin 6 is engaged with the positioning hole 31, the side plate of the groove of the tray 541 is connected to the positioning block by bolts; the first hopper 3 is provided with feet at both the front and rear, so it will not tip over when placed on the table, making it convenient to place samples.

[0070] like Figure 4 As shown, a sample transfer device according to an embodiment of the present invention further includes: a first magnetic suction part 7 and a second magnetic suction part; the first magnetic suction part 7 is disposed at one end of the positioning pin 6 near the positioning hole 31; the second magnetic suction part is disposed in the positioning hole 31 and is used to magnetically engage with the first magnetic suction part 7.

[0071] It should be understood that when the positioning pin 6 is inserted into the positioning hole 31, the first magnetic part 7 and the second magnetic part cooperate with each other to provide a strong suction force to hold the first hopper 3 in place for initial fixation.

[0072] like Figure 1 As shown, a sample transfer device according to an embodiment of the present invention further includes: a deceleration unit 8 and a driving unit 9; the output end of the deceleration unit 8 is connected to the first turntable 21; the output end of the driving unit 9 is connected to the input end of the deceleration unit 8, providing power for the rotation of the first turntable 21.

[0073] In some possible implementations, the reduction unit 8 is a hollow rotary platform reducer, which can be fixed on the mounting plate 1 and its output end is connected to the first turntable 21; the drive unit 9 is a stepper motor, and the output end of the drive unit 9 is connected to the input end of the reduction unit 8. The reduction unit 8 can transmit the power of the drive unit 9 to the first turntable 21 to realize the rotation of the first turntable 21.

[0074] like Figure 1 As shown, a sample transfer device according to an embodiment of the present invention further includes: a second hopper 10, disposed on the mounting plate 1, for docking with the first hopper 3 and transferring the sample in the first hopper 3.

[0075] In some possible implementations, the second hopper 10 has the same shape as the first hopper 3. The second hopper 10 can be installed on the top of the mounting plate 1, corresponding to the highest point of the rotation of the second turntable 22. After the second hopper 10 is aligned with the first hopper 3, the sample in the first hopper 3 can be pushed into the second hopper 10 by a pushing part, such as a motor or cylinder, and then transferred to the testing stage through the second hopper 10.

[0076] In some other embodiments, the sample transfer device further includes a first sensor disposed in the first hopper 3 for detecting whether the first hopper 3 is aligned with the second hopper 10; and a second sensor disposed in the first hopper 3 for detecting whether the tilt of the first hopper 3 is within a threshold value, i.e. whether the first hopper 3 remains in an upward-facing state.

[0077] This utility model also provides a sample testing system, including the sample transfer device described above, and further including: a comprehensive testing platform, which is connected to the mounting plate 1.

[0078] It should be understood that the sample testing system may also include a control module, an interaction module, an alarm module, etc.; the control module is used to receive signals from the sensors and issue control commands; the interaction module is used to display the operating data of the device and provide a human-machine interface; the alarm module is used to indicate operating errors, such as the turntable assembly 2 being obstructed from rotating or the torque of the deceleration part 8 being too large, the inclination of the first hopper 3 exceeding the threshold, the connection between the first hopper 3 and the support 54 being unstable, and the first hopper 3 and the second hopper 10 being unable to align, etc.

[0079] In a specific embodiment of this utility model, the sample is a cigarette, and the specific working process of the sample transfer device and the sample testing system is as follows:

[0080] Prepare cigarettes of various specifications to be tested and place them into the corresponding first hopper 3. The first hopper 3 can hold no less than 30 cigarettes. When placing the cigarettes, the first hopper 3 can be removed to place the cigarettes, or the first hopper 3 can be left in place and the cigarettes can be placed directly from the side of the first hopper 3. After setting the corresponding parameters in the software, the comprehensive testing platform will start. The parameters in the software can include numbering the first hopper 3, entering information on the different specifications of cigarettes placed in the first hopper 3 with different numbers, setting the initial rotation speed of the turntable assembly 2 and the sensitivity of the sensor.

[0081] Driven by a stepper motor, the turntable assembly 2 begins to rotate. When a first hopper 3 aligns with a second hopper 10, it is pushed by a motor or cylinder to move the cigarettes in the first hopper 3 through the second hopper 10 into the hopper of the comprehensive testing platform for testing. After a set of cigarettes has been tested, the turntable assembly 2 rotates again, and when the next first hopper 3 aligns with the second hopper 10, it is pushed into the hopper of the comprehensive testing platform for testing again. This process is repeated until all the cigarettes in the first hopper 3 have been tested.

[0082] When it is necessary to prioritize the testing of cigarettes of a certain specification in the first hopper 3, simply set the corresponding number of the first hopper 3 in the software to execute the testing command. The corresponding first hopper 3 will then rotate to the position aligned with the second hopper 10 and be pushed into the hopper of the comprehensive testing platform for testing. After the testing is completed, the cigarettes in the other first hopper 3s will be tested.

[0083] It should be noted that, due to the downward offset of the center of track 4 and the center of the first turntable 21 in this invention, the inner and outer walls of track 4 limit the movement of roller 52 during the rotation of the turntable assembly 2, ensuring that the first hopper 3 always remains open upwards, preventing samples from falling out. Compared to complex synchronous belt devices, the device provided by this invention has advantages such as simple and reliable structure and connection, and convenient installation. Compared to devices that use counterweights to keep the hopper open upwards, the device provided by this invention has advantages such as high stability and a high safety factor. The sample conveying device and sample testing system provided by this invention have been verified in practice, demonstrating strong stability, extremely high efficiency, and accuracy. It solves the defects and technical pain points of current rotary sample delivery devices, and has good application prospects and promotional value.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sample transfer device, characterized in that, include: Mounting plate (1); Turntable assembly (2) is rotatably mounted on the mounting plate (1); Multiple first hoppers (3) are evenly distributed along the circumference of the turntable assembly (2); The track (4) is set on the mounting plate (1) and is set corresponding to the turntable assembly (2); A connecting component (5) is provided, one side of which is connected to the first hopper (3), and the other side of which is slidably connected to the track (4) so ​​that the first hopper (3) always keeps its opening facing upward during the rotation of the turntable assembly (2).

2. The sample transfer device according to claim 1, characterized in that, The turntable assembly (2) includes: The first turntable (21) is rotatably connected to the mounting plate (1); The second turntable (22) is annular. The inner ring side of the second turntable (22) is detachably connected to the outer circumference of the first turntable (21). The outer ring side of the second turntable (22) is evenly distributed with mounting holes (221) for mounting the first hopper (3).

3. The sample transfer device according to claim 2, characterized in that, The track (4) is circular and is located on the outer periphery of the first turntable (21); The center of the track (4) is located below the center of the first turntable (21), and the line connecting the center of the track (4) and the center of the first turntable (21) extends in the vertical direction.

4. The sample transfer device according to claim 3, characterized in that, The connection component (5) includes: A connecting rod (51) is provided with a roller (52) at one end of the connecting rod (51), and the roller (52) is provided on the track (4); A connecting shaft (53) is provided, one end of which is fixedly connected to the end of the connecting rod (51) away from the roller (52), and the other end of the connecting shaft (53) passes through the mounting hole (221) and is rotatably connected to the mounting hole (221). Support member (54), said support member (54) includes: The pallet (541) has a groove for fitting the first hopper (3). A connecting plate (542) is connected to the support plate (541) on one side, and the other side of the connecting plate (542) is fixedly connected to one end of the connecting shaft (53) that passes through the mounting hole (221); The connecting rod (51), the connecting shaft (53), and the connecting plate (542) are on the same plane.

5. The sample transfer device according to claim 4, characterized in that, The connecting rod (51) is Z-shaped and includes a first rod (511) and a second rod (512) that are parallel to each other, and a third rod (513) that connects the first rod (511) and the second rod (512). The end of the first rod (511) away from the third rod (513) is rotatably connected to the roller (52); The end of the second rod (512) away from the third rod (513) is connected to the connecting shaft (53); The distance between the first rod (511) and the mounting plate (1) is less than the distance between the second rod (512) and the mounting plate (1).

6. The sample transfer device according to claim 4, characterized in that, Also includes: A positioning pin (6) is provided on the tray (541). The first hopper (3) has a positioning hole (31) on the side near the positioning pin (6) for insertion and engagement with the positioning pin (6).

7. The sample transfer device according to claim 6, characterized in that, Also includes: The first magnetic suction part (7) is disposed at one end of the positioning pin (6) near the positioning hole (31); The second magnetic suction part is disposed in the positioning hole (31) and is used to magnetically engage with the first magnetic suction part (7).

8. The sample transfer device according to claim 2, characterized in that, Also includes: The deceleration unit (8) is connected to the first turntable (21) at its output end. The drive unit (9) has its output end connected to the input end of the deceleration unit (8) to provide power for the rotation of the first turntable (21).

9. The sample transfer device according to any one of claims 1-8, characterized in that, Also includes: The second hopper (10) is disposed on the mounting plate (1) and is used to dock with the first hopper (3) and transfer the sample in the first hopper (3).

10. A sample testing system, characterized in that, The sample transfer device as described in any one of claims 1-9 further includes: a comprehensive testing platform, which is connected in conjunction with the mounting plate (1).

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