In-situ lunar soil sampling device

Abstract

The in-situ lunar soil sampling device comprises a sampling mechanism and a screening mechanism, the sampling mechanism is arranged on one side of the screening mechanism and is used for collecting and transferring lunar soil samples to the screening mechanism; the screening mechanism comprises a screening bin, a screening filter cartridge and a conveying rod, a feeding port is formed in the top of the screening bin, the screening filter cartridge is arranged in the screening bin and communicates with the feeding port, the conveying rod is rotatably arranged in the screening filter cartridge, and continuous spiral blades are arranged on the peripheral surface of the conveying rod; the spiral blade is used for pushing the lunar soil sample to axially move in the screening filter drum when the conveying rod rotates; the screening filter cartridge comprises a plurality of particle size grading units, and the sizes of sieve pores of the plurality of particle size grading units are sequentially increased in the conveying direction of the lunar soil sample; a plurality of collecting hoppers are arranged at the bottom of the screening bin, are in one-to-one correspondence with the particle size grading units and are used for collecting lunar soil samples screened by the corresponding particle size grading units; flash ports are formed in the side walls of the collecting hoppers, and the heights of the flash ports are different from one another.

Description

Technical Field

[0001] This application belongs to the technical field of aerospace equipment, and particularly relates to an in-situ lunar soil sampling device. Background Art

[0002] With the continuous deepening of human exploration of the universe, the moon, as the celestial body closest to the earth, has become an important target for scientific research. The lunar soil on the lunar surface contains rich scientific information. Studying the lunar soil helps us deeply understand the formation and evolution history of the moon, as well as the material cycle and energy conversion processes in the universe. In-situ lunar soil sampling is the key means to obtain the original lunar soil samples on the lunar surface and is of extremely important significance for lunar scientific research.

[0003] Early lunar soil sampling techniques were relatively simple, mainly obtaining lunar soil samples by direct excavation or grabbing. However, these methods have many limitations. On the one hand, the directly obtained lunar soil samples are not screened, and the samples contain particles of various particle sizes, which cannot meet the needs of targeted research on lunar soil of different particle sizes. Lunar soil particles of different particle sizes may have significant differences in physical properties, chemical compositions, and formation mechanisms, and the analysis of mixed samples is difficult to accurately reveal these characteristics. On the other hand, after traditional sampling devices collect lunar soil samples, they cannot adjust the proportion of lunar soil of different particle sizes in the samples according to scientific research needs, resulting in a large amount of time and effort spent on secondary processing and screening of the samples in subsequent research, increasing the research cost and complexity. Summary of the Invention

[0004] In view of this, this application provides an in-situ lunar soil sampling device, and the main purpose is to screen lunar soil samples and adjust the proportion of lunar soil of different particle sizes in the lunar soil samples.

[0005] To achieve the above object, this application mainly provides the following technical solutions:

[0006] This application provides an in-situ lunar soil sampling device, including:

[0007] A sampling mechanism and a screening mechanism;

[0008] The sampling mechanism is arranged on one side of the screening mechanism, and the sampling mechanism is used to collect and transfer lunar soil samples to the screening mechanism;

[0009] The screening mechanism includes a screening bin, a screening filter cylinder, and a conveying rod. An inlet is provided at the top of the screening bin. The screening filter cylinder is disposed within the screening bin and is in communication with the inlet. The conveying rod is rotatably disposed within the screening filter cylinder. A continuous spiral blade is provided on the outer peripheral surface of the conveying rod. The spiral blade is used to push the lunar soil sample to axially move within the screening filter cylinder when the conveying rod rotates. The screening filter cylinder includes multiple particle size classification units. In the conveying direction of the lunar soil sample, the screen hole sizes of the multiple particle size classification units gradually increase. A plurality of aggregate hoppers are provided at the bottom of the screening bin. The plurality of aggregate hoppers are arranged in one-to-one correspondence with the multiple particle size classification units. The aggregate hopper is used to collect the lunar soil sample screened by the corresponding particle size classification unit. Overflow ports are formed on the side walls of the plurality of aggregate hoppers, and the heights of the respective overflow ports are different from each other.

[0010] Optionally, the sampling mechanism includes:

[0011] A sampling arm, with a sampling shovel provided at the execution end of the sampling arm. The sampling arm has at least three degrees of freedom.

[0012] Optionally, a plurality of partition plates are provided between the inner wall of the screening bin and the outer wall of the screening filter cylinder. The plurality of partition plates are distributed along the axial direction of the screening filter cylinder. The plurality of partition plates are used to isolate the lunar soil samples screened by different particle size classification units.

[0013] Optionally, the in-situ lunar soil sampling device further includes:

[0014] A sub-packaging mechanism, which is disposed below the screening mechanism. The sub-packaging mechanism is used to sub-package the lunar soil samples with different particle sizes after screening and falling from the aggregate hopper into different storage containers.

[0015] Optionally, the sub-packaging mechanism includes:

[0016] A container rack and a turntable;

[0017] The container rack is rotatably disposed below the aggregate hopper. In the circumferential direction of the container rack, a plurality of the storage containers are detachably and evenly distributed. When the container rack drives the storage containers to rotate, a part of the rotation path of the storage containers is oppositely disposed to the aggregate hopper in the vertical direction;

[0018] The turntable is rotatably arranged between the aggregate hopper and the container rack. A first opening is formed in the turntable. When the turntable rotates to a position where the first opening is vertically opposite to the aggregate hopper, the lunar soil sample in the aggregate hopper can pass through the first opening and penetrate the turntable to fall into the corresponding storage container. When the turntable rotates to a position where the first opening is vertically offset from the aggregate hopper, the solid part of the turntable closes the discharge port of the aggregate hopper.

[0019] Optionally, the sub-packaging mechanism further includes:

[0020] A first driving component, a second driving component, and a bearing seat;

[0021] The first driving component is connected to the container rack and is used to drive the container rack to rotate; the second driving component is connected to the turntable and is used to drive the turntable to rotate;

[0022] The bearing seat is arranged between the first driving component and the second driving component. One end of the bearing seat is rotatably connected to the output shaft of the first driving component, and the other end is rotatably connected to the output shaft of the second driving component.

[0023] Optionally, a plurality of second openings are further formed in the turntable. Removable container covers are provided in the plurality of second openings. When the turntable and the container rack rotate to a position where the storage container is vertically opposite to the second opening, the container cover can be buckled onto the storage container under the action of the execution end of the sampling mechanism.

[0024] Optionally, when the turntable rotates to a position where the first opening is vertically opposite to the aggregate hopper, any one of the plurality of second openings is vertically offset from the aggregate hopper.

[0025] Optionally, an elastic member is provided at the open top of the storage container. When the container cover is buckled onto the storage container under the action of the execution end of the sampling mechanism, the execution end of the sampling mechanism deforms the elastic member through the container cover to accumulate elastic potential energy. After the container cover is buckled in place and the downward pressing action stops, the elastic member releases the elastic potential energy to limit the container cover in the vertically upward direction.

[0026] Optionally, the container rack includes:

[0027] A plurality of movable clamping jaws, and the plurality of movable clamping jaws are arranged in one-to-one correspondence with the plurality of storage containers.

[0028] With the above technical solutions, the present application has at least the following beneficial effects:

[0029] In an embodiment of the present application, an in-situ lunar soil sampling device is provided, wherein the screening filter cylinder includes a plurality of particle size grading units, and the screen hole sizes of the plurality of particle size grading units increase in sequence in the lunar soil sample conveying direction. Thus, when the conveying rod rotates and the spiral blade pushes the lunar soil sample to move axially in the screening filter cylinder, lunar soil particles of different particle sizes will be screened out in the corresponding particle size grading units according to their own sizes, enabling the lunar soil sample to be accurately graded according to particle size, providing a basis for subsequent research on lunar soil of different particle sizes. At the same time, a plurality of aggregate hoppers corresponding one-to-one to the particle size grading units are provided at the bottom of the screening bin, and each aggregate hopper can accurately collect the lunar soil sample screened by the corresponding particle size grading unit. Thus, lunar soil of different particle sizes can be stored separately, facilitating subsequent research and analysis. Further, overflow ports are provided on the side walls of the plurality of aggregate hoppers, and the heights of the overflow ports are different from each other. By setting overflow ports with different heights, the proportion of lunar soil of different particle sizes can be adjusted according to scientific research needs. When a certain particle size of lunar soil is collected to a certain amount and exceeds the height of the corresponding overflow port, the excess lunar soil will overflow from the overflow port, thereby controlling the proportion of this particle size of lunar soil in the final sample. This solves the problem that traditional sampling devices cannot adjust the proportion of lunar soil of different particle sizes according to scientific research needs, reduces the time and effort for secondary processing and screening of samples in subsequent research, and reduces the research cost and complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Structural schematic diagram of an in-situ lunar soil sampling device according to an alternative embodiment of the present application;

[0031] Figure 2 Structural schematic diagram of a sampling mechanism according to an alternative embodiment of the present application;

[0032] Figure 3 Structural schematic diagram of a screening mechanism according to an alternative embodiment of the present application;

[0033] Figure 4 Structural schematic diagram of a sub-packaging mechanism according to an alternative embodiment of the present application;

[0034] Figure 5 Structural schematic diagram of a turntable according to an alternative embodiment of the present application;

[0035] Figure 6 is Figure 5 Cross-sectional view taken along line A-A in

[0036] Figure 7 Structural schematic diagram of a container rack according to an alternative embodiment of the present application;

[0037] Figure 8 Top view of a storage container according to an alternative embodiment of the present application;

[0038] Figure 9 Cross-sectional view of a storage container according to an alternative embodiment of the present application.

[0039] The reference numerals are indicated as:

[0040] 1. Sampling mechanism; 11. Sampling arm; 12. Sampling shovel; 2. Screening mechanism; 21. Screening bin; 22. Screening filter cartridge; 221. Particle size grading unit; 23. Conveyor rod; 24. Aggregate hopper; 241. Overflow port; 3. Sub-packaging mechanism; 31. Container rack; 32. Turntable; 321. First opening; 322. Second opening; 33. Storage container; 331. Elastic member; 34. First drive assembly; 35. Second drive assembly; 36. Bearing seat; 37. Container cover; 38. Movable clamping jaw. Detailed implementation manners

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0043] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] The preferred embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present application, and are not used to limit the present application.

[0045] Referring to Figures 1 to 9 As shown, according to an embodiment of the present application, an in-situ lunar soil sampling device is provided, including: a sampling mechanism 1 and a screening mechanism 2; the sampling mechanism 1 is arranged on one side of the screening mechanism 2, and the sampling mechanism 1 is used to collect and transfer lunar soil samples to the screening mechanism 2; the screening mechanism 2 includes a screening bin 21, a screening filter cylinder 22 and a conveying rod 23. The top of the screening bin 21 is provided with a feeding port. The screening filter cylinder 22 is arranged in the screening bin 21 and communicated with the feeding port. The conveying rod 23 is rotatably arranged in the screening filter cylinder 22. A continuous spiral blade is arranged on the outer peripheral surface of the conveying rod 23. The spiral blade is used to push the lunar soil sample to move axially in the screening filter cylinder 22 when the conveying rod 23 rotates; the screening filter cylinder 22 includes a plurality of particle size grading units 221. In the conveying direction of the lunar soil sample, the screen hole sizes of the plurality of particle size grading units 221 increase in sequence; a plurality of collecting hoppers 24 are arranged at the bottom of the screening bin 21. The plurality of collecting hoppers 24 are arranged in one-to-one correspondence with the plurality of particle size grading units 221. The collecting hopper 24 is used to collect the lunar soil sample screened by the corresponding particle size grading unit 221; overflow ports 241 are formed on the side walls of the plurality of collecting hoppers 24, and the heights of the respective overflow ports 241 are different from each other.

[0046] In this embodiment, the screening filter cylinder 22 includes a plurality of particle size grading units 221, and in the conveying direction of the lunar soil sample, the screen hole sizes of the plurality of particle size grading units 221 increase in sequence. Thus, when the conveying rod 23 rotates and the spiral blade pushes the lunar soil sample to move axially in the screening filter cylinder 22, lunar soil particles of different particle sizes will be screened out in the corresponding particle size grading units 221 according to their own sizes, enabling the lunar soil sample to be accurately graded according to the particle size, providing a basis for subsequent research on lunar soil of different particle sizes. At the same time, a plurality of collecting hoppers 24 corresponding one-to-one to the particle size grading units 221 are arranged at the bottom of the screening bin 21, and each collecting hopper 24 can accurately collect the lunar soil sample screened by the corresponding particle size grading unit 221. Thus, lunar soil of different particle sizes can be stored separately, facilitating subsequent research and analysis. Further, overflow ports 241 are formed on the side walls of the plurality of collecting hoppers 24, and the heights of the respective overflow ports 241 are different from each other. By setting the overflow ports 241 with different heights, the proportion of lunar soil of different particle sizes can be adjusted according to scientific research needs. When a certain particle size of lunar soil is collected to a certain amount and exceeds the height of the corresponding overflow port 241, the excess lunar soil will overflow from the overflow port 241, thereby controlling the proportion of this particle size of lunar soil in the final sample. This solves the problem that traditional sampling devices cannot adjust the proportion of lunar soil of different particle sizes according to scientific research needs, reduces the time and effort for secondary processing and screening of samples in subsequent research, and reduces the research cost and complexity.

[0047] Among them, the in-situ lunar soil sampling device further includes a frame, and both the sampling mechanism 1 and the screening mechanism 2 are fixed on the frame. By providing a stable installation position for the sampling mechanism 1 and the screening mechanism 2 through the frame, it ensures that the sampling and screening operations can be carried out smoothly and accurately.

[0048] Specifically, the sampling mechanism 1 can be a drilling sampling mechanism 1, a shoveling sampling mechanism 1, a suction sampling mechanism 1, a grasping sampling mechanism 1, etc., which can collect lunar soil samples and transfer the lunar soil samples to the screening mechanism 2. This application does not make any limitations in this regard.

[0049] Among them, the screening mechanism 2 is located on one side of the sampling mechanism 1 and is used for screening and grading the lunar soil samples, mainly composed of a screening bin 21, a screening filter cylinder 22, and a conveying rod 23.

[0050] Specifically, the screening bin 21 can be a container for accommodating screening components, and a feeding port is provided at the top. The feeding port is the channel for the lunar soil samples to enter the screening mechanism 2. The screening bin 21 provides a relatively enclosed space for the entire screening process to prevent the lunar soil from scattering everywhere during the screening process. The screening filter cylinder 22 is arranged inside the screening bin 21 and is connected to the feeding port at the top of the screening bin 21. The screening filter cylinder 22 is composed of multiple particle size grading units 221. In the conveying direction of the lunar soil samples, the screen hole sizes of these particle size grading units 221 increase in sequence. For example, the screen holes of the first particle size grading unit 221 are the smallest, and the screen holes of the last particle size grading unit 221 are the largest. When the lunar soil samples entering from the feeding port pass through the screening filter cylinder 22, lunar soil particles of different particle sizes will be screened out in the corresponding particle size grading units 221 according to their own sizes. The lunar soil particles with smaller particle sizes will first pass through the particle size grading unit 221 with smaller screen hole sizes, while the lunar soil particles with larger particle sizes will continue to move inside the screening filter cylinder 22 until they encounter screen holes through which they can pass. The conveying rod 23 is rotatably installed inside the screening filter cylinder 22, and continuous spiral blades are provided on its outer peripheral surface. When the conveying rod 23 rotates, the spiral blades will push the lunar soil samples to move axially inside the screening filter cylinder 22 like a conveyor belt, ensuring that the lunar soil samples can continuously and stably pass through each particle size grading unit 221, realizing an efficient screening process. It should be noted that the conveying rod 23 can be driven to rotate by a conveying motor, and the conveying motor is located on the axial side of the screening filter cylinder 22, and the driving end of the conveying motor is connected to the conveying rod 23.

[0051] Among them, the screening mechanism 2 further includes a plurality of aggregate hoppers 24, and the plurality of aggregate hoppers 24 are all arranged at the bottom of the screening bin 21, and their numbers correspond one-to-one to the particle size classification units 221. An overflow port 241 is provided on the side wall of each aggregate hopper 24, and the heights of the respective overflow ports 241 are different from each other. Each aggregate hopper 24 is used to collect the lunar soil samples screened by the corresponding particle size classification unit 221. After the lunar soil particles of different particle sizes pass through the sieve holes of the screening filter cylinder 22, they will fall into the corresponding aggregate hoppers 24. The function of the overflow port 241 is to adjust the proportion of lunar soil of different particle sizes according to scientific research needs. When the lunar soil of a certain particle size is collected in the aggregate hopper 24 to a certain amount and exceeds the height of the corresponding overflow port 241, the excess lunar soil will overflow from the overflow port 241, thereby controlling the proportion of the lunar soil of this particle size in the final sample.

[0052] Specifically, in an actual application scenario, first, the sampling mechanism 1 collects lunar soil samples from the lunar surface and transfers them to the feeding port at the top of the screening bin 21 of the screening mechanism 2; then, the lunar soil samples enter the screening filter cylinder 22 through the feeding port; next, the conveying rod 23 rotates, and the spiral blade pushes the lunar soil samples to move axially in the screening filter cylinder 22. During the movement, the lunar soil particles of different particle sizes are screened out in the corresponding particle size classification units 221 according to the sieve hole size; then, the screened lunar soil particles fall into the corresponding aggregate hoppers 24 respectively; finally, when the lunar soil in the aggregate hopper 24 reaches the height of the overflow port 241, the excess lunar soil will overflow from the overflow port 241, thereby realizing the adjustment of the proportion of lunar soil of different particle sizes.

[0053] It should be noted that in the low-gravity environment on the lunar surface, when the rotating conveying rod 23 uses the spiral blade on its outer periphery to push the screened lunar soil particles to move axially in the screening filter cylinder 22, the high-speed rotation of the conveying rod 23 and the spiral blade generates a centrifugal force, which prompts the lunar soil particles to move towards the wall of the screening filter cylinder 22, so that the lunar soil particles fall into the corresponding aggregate hoppers 24 at the bottom of the screening bin 21 respectively.

[0054] In some possible implementation embodiments disclosed in the present application, as shown in Figure 2 the sampling mechanism 1 includes: a sampling arm 11, a sampling shovel 12 is provided at the execution end of the sampling arm 11, and the sampling arm 11 has at least three degrees of freedom.

[0055] In this embodiment, multiple degrees of freedom can achieve more precise motion control, so that the sampling shovel 12 can accurately insert into the lunar soil and accurately collect lunar soil samples with the target depth and quantity, ensuring the accuracy and representativeness of the sampling, and contributing to the reliability of subsequent scientific research.

[0056] Among them, the sampling arm 11 is the component responsible for performing the sampling action in the entire sampling mechanism 1. It is similar to a human arm and plays the role of supporting, stretching, and operating the sampling shovel 12.

[0057] Among them, the sampling arm 11 has at least three degrees of freedom, enabling the sampling arm 11 to move in three or more independent directions. For example, the sampling arm 11 can move in the horizontal direction (x-axis and y-axis directions) to adjust the sampling position; extend and retract in the vertical direction (z-axis direction) to control the sampling depth; and can also rotate around its own axis and other coordinate axes to adjust the angle and direction of the sampling shovel 12, so as to be able to flexibly reach different positions and postures in three-dimensional space and complete complex sampling tasks.

[0058] Specifically, the sampling arm 11 can be composed of a mechanical structure, a driving device, a transmission component, a control system, etc., and can realize various actions and movements to complete the sampling task. For example, the sampling arm 11 is a mechanical linkage sampling arm 11, a hydraulic drive sampling arm 11, or a hybrid sampling arm 11, etc. In this embodiment, the sampling arm 11 is a hybrid sampling arm 11. Through the coordinated movement of multiple joints such as the shoulder joint, elbow joint, and wrist joint, the flexible operation of the sampling arm 11 in three-dimensional space is realized. At the same time, a hydraulic cylinder is used as the power source, and the piston is pushed to move by the pressure of hydraulic oil, and then each joint or rod of the sampling arm 11 is driven to move.

[0059] Among them, at the end of the sampling arm 11, that is, the end for performing specific operations, a sampling shovel 12 is installed. The sampling shovel 12 is a tool that directly contacts the lunar soil and samples it. Its shape, size, material, etc. can be determined according to the sampling requirements and environment. For example, in order to effectively dig and collect lunar soil, the sampling shovel 12 can have a sharp edge to insert into the lunar soil, and at the same time has a certain capacity and shape to accommodate and preserve the collected lunar soil samples, and may also have some special structures, such as a baffle to prevent lunar soil from spilling.

[0060] Specifically, when the sampling task is started, the control system first receives instructions from the operator or a preset program to clarify parameters such as the sampling location, depth, and the number of samples. These instructions are converted into specific control signals and transmitted to each component of the sampling arm 11. For the hybrid sampling arm 11, the control system first drives the mechanical linkage structure through the motor to make a preliminary position adjustment of the sampling arm 11 in the horizontal direction (x-axis and y-axis). The motor rotates precisely according to the control signal, driving the connected mechanical linkage to achieve the movement of the sampling arm 11 on the lunar surface horizontal plane and accurately positioning it to the target sampling area. After reaching above the target area, it is necessary to control the sampling depth. At this time, the hydraulic cylinder comes into play. The control system adjusts the hydraulic pump station to make the hydraulic oil enter the hydraulic cylinder at a specific pressure, pushing the piston to move. The movement of the piston is transmitted to the rod of the sampling arm 11 through the transmission component, causing the sampling arm 11 to expand and contract in the vertical direction (z-axis), so as to accurately insert the sampling shovel 12 into the lunar soil at the target depth. During the process of inserting the sampling shovel 12 into the lunar soil, in order to ensure the accuracy and efficiency of sampling, the sampling arm 11 also needs to make angle and direction adjustments. The control system makes the coordinated movement of multiple joints such as the shoulder joint, elbow joint, and wrist joint by controlling the cooperation of the motor and the hydraulic system. For example, by driving a specific linkage with the motor, the angle of the shoulder joint is changed to achieve the overall swing of the sampling arm 11; the inclination angle of the sampling shovel 12 is accurately adjusted by hydraulic driving of the elbow joint; and then the rotation of the wrist joint is controlled by the motor to make the opening direction of the sampling shovel 12 consistent with the sampling requirement. When the sampling shovel 12 reaches the target depth and the angle is adjusted, it cuts into the lunar soil with its sharp edge to excavate the lunar soil sample. The special structure of the sampling shovel 12, such as the baffle, can effectively prevent the lunar soil from spilling during the excavation process. As the excavation progresses, the lunar soil sample gradually enters the sampling shovel 12. When the preset number of samples is reached, the control system issues an instruction to reverse the operation of the motor and the hydraulic system, causing the sampling arm 11 to retract the sampling shovel 12 from the lunar soil, completing a sampling task. After that, the sampling mechanism 1 can continue the next sampling according to the instruction, or transfer the collected lunar soil sample to the subsequent screening or storage device.

[0061] In some possible embodiments disclosed in the present application, a plurality of partitions are provided between the inner wall of the screening bin 21 and the outer wall of the screening filter cylinder 22. The plurality of partitions are distributed along the axial direction of the screening filter cylinder 22, and the plurality of partitions are used to isolate the lunar soil samples screened by different particle size classification units 221.

[0062] In this embodiment, by setting the partitions, the lunar soil samples screened by different particle size classification units 221 in the screening filter cylinder 22 can be effectively isolated, ensuring that the lunar soil samples in different particle size ranges will not be mixed with each other, guaranteeing the accuracy and independence of the screening results of each particle size classification unit 221, and facilitating subsequent research, analysis, or processing of lunar soil samples with different particle sizes separately.

[0063] Among them, the screening bin 21 is the outer shell part of the entire screening mechanism 2, which plays a role in accommodating and protecting the internal screening structure, provides a relatively enclosed space for the screening process of lunar soil samples, prevents lunar soil from scattering during the screening process, and also provides a foundation for the installation and support of other components such as partitions.

[0064] Among them, the screening filter cylinder 22 is one of the core components of the screening mechanism 2. Different particle size grading units 221 with different sieve pore diameters are arranged inside it, which are used for particle size grading of lunar soil samples. Inside the screening filter cylinder 22, through vibration, rotation and other methods, particles of different particle sizes will be separated according to the filter screen structure with different sieve pore diameters on different particle size grading units 221 and enter the space between the screening filter cylinder 22 and the screening bin 21 from the corresponding positions.

[0065] Specifically, a plurality of partitions are arranged in the space between the screening filter cylinder 22 and the screening bin 21. The plurality of partitions are distributed along the axial direction of the screening filter cylinder 22, that is, arranged in sequence along the length direction of the screening filter cylinder 22. This distribution method is adapted to the flow direction of the lunar soil sample during the screening process, because the lunar soil sample usually undergoes screening and movement step by step along the axial direction inside the screening filter cylinder 22. The axial distribution of the partitions can isolate the samples screened by different particle size grading units 221 in a timely manner during the flow of the lunar soil sample.

[0066] In some possible embodiments disclosed in the present application, as shown in Figure 1 the in-situ lunar soil sampling device further includes: a sub-packaging mechanism 3. The sub-packaging mechanism 3 is arranged below the screening mechanism 2, and the sub-packaging mechanism 3 is used to sub-package lunar soil samples of different particle sizes that fall from the aggregate hopper 24 and have been screened into different storage containers 33.

[0067] In this embodiment, by setting the sub-packaging mechanism 3, lunar soil samples of different particle sizes after being processed by the screening mechanism 2 can be accurately sub-packaged into different storage containers 33 according to preset requirements, effectively preventing the lunar soil samples of different particle sizes from being mixed with each other during the sub-packaging process, ensuring the purity and singularity of the samples in each storage container 33, so as to meet the subsequent requirements for separately studying and experimenting with lunar soil samples of different particle sizes, and improving the accuracy and scientific nature of lunar soil sample processing.

[0068] Among them, when the in-situ lunar soil sampling device includes a frame, the sub-packaging mechanism 3 is also fixedly arranged on the frame, realizing the integrated design of the in-situ lunar soil sampling device and reducing the floor area of the in-situ lunar soil sampling device.

[0069] Specifically, the subpackaging mechanism 3 can be a rotating disk 32 type subpackaging mechanism 3 or a pneumatic valve type subpackaging mechanism 3. It is installed below the collecting hopper 24, and its main function is to load lunar soil samples of different particle sizes into corresponding storage containers 33. The storage container 33 is used to store the lunar soil samples that have been subpacked, and lunar soil samples of different particle sizes correspond to different storage containers 33. In actual application scenarios, the lunar soil samples fall from the collecting hopper 24, and the collecting hopper 24 plays the role of temporarily storing and guiding the lunar soil samples. In some specific examples, an adjustable valve or baffle is provided at the discharge port of the collecting hopper 24, and the opening and closing of the discharge port are controlled by adjusting the state of the valve or baffle; in other specific examples, the subpackaging mechanism 3 includes a physical part that closes the discharge port of the collecting hopper 24, and a giving way part that opens the discharge port of the collecting hopper 24, and the opening and closing of the discharge port are controlled by adjusting the working state of the subpackaging mechanism 3.

[0070] In some possible implementations disclosed in this application, see Figure 4 As shown, the packaging mechanism 3 includes: a container rack 31 and a turntable 32; the container rack 31 is rotatably arranged below the collecting hopper 24, and in the circumferential direction of the container rack 31, a plurality of storage containers 33 are detachably and evenly distributed, and when the container rack 31 drives the storage container 33 to rotate, a part of the rotation path of the storage container 33 is arranged opposite to the collecting hopper 24 in the vertical direction; the turntable 32 is rotatably arranged between the collecting hopper 24 and the container rack 31, and a first opening 321 is opened on the turntable 32. When the turntable 32 is rotated to the point where the first opening 321 is arranged opposite to the collecting hopper 24 in the vertical direction, the lunar soil sample in the collecting hopper 24 can pass through the turntable 32 through the first opening 321 to fall into the corresponding storage container 33, and when the turntable 32 is rotated to the point where the first opening 321 is arranged opposite to the collecting hopper 24 in the vertical direction, the solid part of the turntable 32 closes the discharge port of the collecting hopper 24.

[0071] In this embodiment, by setting the container rack 31 to be rotatable and evenly distributing a plurality of detachable storage containers 33 in its circumferential direction, and the turntable 32 to be rotatable and provided with a first opening 321. Thus, when the container rack 31 drives the storage containers 33 to rotate and the turntable 32 also rotates accordingly, it is possible to accurately divide and pack the lunar soil samples with different particle sizes after screening in the aggregate hopper 24 into the corresponding storage containers 33. Specifically, when the first opening 321 of the turntable 32 is oppositely arranged with the aggregate hopper 24 in the vertical direction, the lunar soil samples can fall into the storage containers 33 through the first opening 321, ensuring that each storage container 33 can accurately receive the lunar soil samples with the corresponding particle size, preventing the lunar soil samples with different particle sizes from being mixed with each other during the dividing and packing process, and ensuring the purity and singularity of the samples in each storage container 33. When the turntable 32 rotates to a position where the first opening 321 is offset from the aggregate hopper 24 in the vertical direction, the solid part of the turntable 32 closes the discharge port of the aggregate hopper 24, so that the discharge process of the lunar soil samples can be flexibly controlled, and the discharge port can be opened or closed at an appropriate time according to actual needs, avoiding unnecessary spilling or incorrect dividing and packing of the lunar soil samples, and improving the accuracy and controllability of the dividing and packing.

[0072] Among them, the container rack 31 is rotatably installed below the aggregate hopper 24, so as to be able to change the position of the storage containers 33. It should be noted that when the container rack 31 drives the storage containers 33 to rotate, a part of the rotation path of the storage containers 33 will be oppositely arranged with the aggregate hopper 24 in the vertical direction. This is an important condition for accurately dividing and packing the lunar soil samples, because only when the storage containers 33 rotate to a position oppositely arranged with the aggregate hopper 24 in the vertical direction, the lunar soil samples falling from the aggregate hopper 24 may accurately fall into the storage containers 33.

[0073] Specifically, in the circumferential direction of the container rack 31 (that is, the circumferential direction around the container rack 31), a plurality of storage containers 33 are evenly distributed, and these storage containers 33 are detachable, so that after the storage containers 33 are filled with lunar soil samples, they can be conveniently removed for subsequent processing, such as replacing the new storage containers 33 to continue the dividing and packing.

[0074] Among them, the turntable 32 is also rotatable, and it is arranged between the aggregate hopper 24 and the container rack 31 for controlling the discharge and temporary storage of the lunar soil samples in the aggregate hopper 24.

[0075] Specifically, a first opening 321 is formed in the turntable 32. The first opening 321 serves as the passage for the lunar soil sample to fall from the aggregate hopper 24 into the storage container 33. When the turntable 32 rotates, the position of the first opening 321 changes. It should be noted that when the turntable 32 rotates to a position where the first opening 321 is vertically opposite to the aggregate hopper 24, the lunar soil sample in the aggregate hopper 24 can pass through the first opening 321 and penetrate the turntable 32, smoothly falling into the corresponding storage container 33, thus completing a sub-packaging process. When the turntable 32 rotates to a position where the first opening 321 is vertically offset from the aggregate hopper 24, the solid part of the turntable 32 will block the discharge port of the aggregate hopper 24, preventing the lunar soil sample from falling, thereby closing the discharge port and stopping the sub-packaging of the lunar soil sample into the current storage container 33. In this way, the discharge timing of the lunar soil sample is flexibly controlled, and lunar soil samples with different particle sizes can be accurately sub-packaged into different storage containers 33 according to needs, avoiding sample confusion and waste.

[0076] Among them, for multiple aggregate hoppers 24, during the rotation of the turntable 32 and the container rack 31, the first opening 321 on the turntable 32 can be sequentially vertically opposite to each aggregate hopper 24, and the storage containers 33 on the container rack 31 can also be sequentially aligned with different aggregate hoppers 24. Thus, the lunar soil samples in different aggregate hoppers 24 can accurately fall into the corresponding storage containers 33 through the first opening 321, completing the precise sub-packaging of lunar soil samples with different particle sizes.

[0077] Specifically, assume that there are four storage containers 33 evenly distributed in the circumferential direction of the container rack 31, corresponding to the collection of lunar soil samples with different particle sizes. When the container rack 31 rotates to make one of the storage containers 33 rotate to a position vertically opposite to an aggregate hopper 24, the operator rotates the turntable 32 to make the first opening 321 of the turntable 32 also opposite to the aggregate hopper 24. At this time, the lunar soil sample with the corresponding particle size in the aggregate hopper 24 will fall into the storage container 33 through the first opening 321. When the storage container 33 is full, rotate the turntable 32 again to make the first opening 321 offset from the aggregate hopper 24 to close the discharge port, and then rotate the container rack 31 to align the next storage container 33 with the next aggregate hopper 24, repeating the above process to achieve the accurate sub-packaging of lunar soil samples with different particle sizes.

[0078] In some possible implementation embodiments disclosed in the present application, refer to Figure 4As shown in the figure, the sub-packaging mechanism 3 further includes: a first driving component 34, a second driving component 35, and a bearing block 36; the first driving component 34 is connected to the container rack 31, and the first driving component 34 is used to drive the container rack 31 to rotate; the second driving component 35 is connected to the turntable 32, and the second driving component 35 is used to drive the turntable 32 to rotate; the bearing block 36 is arranged between the first driving component 34 and the second driving component 35, one end of the bearing block 36 is rotatably connected to the output shaft of the first driving component 34, and the other end is rotatably connected to the output shaft of the second driving component 35.

[0079] In this embodiment, the first driving component 34 is connected to the container rack 31 and is used to drive the container rack 31 to rotate; the second driving component 35 is connected to the turntable 32 and is used to drive the turntable 32 to rotate. Since the two driving components respectively provide power sources for the container rack 31 and the turntable 32, the container rack 31 and the turntable 32 can rotate independently according to actual needs, so as to realize the function of accurately sub-packaging the lunar soil samples with different particle sizes after screening in the aggregate hopper 24 into the corresponding storage containers 33. For example, during the sub-packaging process, the first driving component 34 drives the container rack 31 to rotate to switch different storage containers 33 to align with different aggregate hoppers 24, and the second driving component 35 drives the turntable 32 to rotate to control the opening and closing of the discharge port of the aggregate hopper 24, ensuring the smooth progress of the sub-packaging process.

[0080] Among them, the first driving component 34 is a power component in the sub-packaging mechanism 3, and its main function is to provide power for the rotation of the container rack 31. The first driving component 34 is connected to the container rack 31, so that the first driving component 34 can transmit the power generated by itself to the container rack 31, thereby driving the container rack 31 to rotate according to requirements.

[0081] Specifically, the first driving component 34 is located below the container rack 31. The first driving component 34 includes a first driving motor and a first transmission shaft. The driving end of the first driving motor is connected to the first transmission shaft, and the first transmission shaft is relatively fixed to the container rack 31. After the first driving motor is started, electrical energy is converted into mechanical energy. The driving end of the first driving motor outputs power with high-speed rotation. This power is transmitted to the connected first transmission shaft. Since the first transmission shaft is relatively fixed to the container rack 31, it can drive the container rack 31 to rotate synchronously.

[0082] Among them, the second driving component 35 is also a power component in the sub-packaging mechanism 3, and its main function is to provide power for the rotation of the turntable 32. The second driving component 35 is connected to the turntable 32, so that the second driving component 35 can transmit the power generated by itself to the turntable 32, thereby driving the turntable 32 to rotate according to requirements.

[0083] Specifically, the second driving assembly 35 is located above the turntable 32. The second driving assembly 35 includes a second driving motor and a second transmission shaft. The driving end of the second driving motor is connected to the second transmission shaft, and the second transmission shaft is relatively fixed to the turntable 32. After the second driving motor is started, electrical energy is converted into mechanical energy. The driving end of the second driving motor outputs power with high-speed rotation. This power is transmitted to the connected second transmission shaft. Since the second transmission shaft is relatively fixed to the turntable 32, it can drive the turntable 32 to rotate synchronously.

[0084] Among them, the axis lines of the container rack 31, the turntable 32, the first transmission shaft, and the second transmission shaft coincide. When the container rack 31 rotates driven by the first transmission shaft, because it coincides with the axis line of the turntable 32, the storage containers 33 on the container rack 31 can accurately align with the aggregate hopper 24 along the preset trajectory with the cooperation of the turntable 32. The first opening 321 on the turntable 32 can also be relatively arranged or staggered with the aggregate hopper 24 more stably and accurately in the vertical direction driven by the second transmission shaft. This not only avoids problems such as the lunar soil samples spilling or the sub-packaging being incorrect due to non-concentricity between components, but also greatly improves the sub-packaging efficiency.

[0085] Specifically, a bearing seat 36 is arranged between the first transmission shaft and the second transmission shaft. One end of the bearing seat 36 is rotatably connected to the output shaft of the first driving assembly 34, and the other end is rotatably connected to the output shaft of the second driving assembly 35, which can ensure that the output shafts of the first driving assembly 34 and the second driving assembly 35 can maintain a stable positional relationship during relative rotation, reduce the axial and radial displacement deviations, and ensure the operation accuracy of the entire sub-packaging mechanism 3.

[0086] In the above embodiment, referring to Figure 5 and Figure 6 As shown, a plurality of second openings 322 are also formed on the turntable 32. Removably arranged in the plurality of second openings 322 are container lids 37. When the turntable 32 and the container rack 31 rotate to a position where the storage containers 33 are relatively arranged with the second openings 322 in the vertical direction, the container lids 37 can be buckled onto the storage containers 33 under the action of the execution end of the sampling mechanism 1.

[0087] In this embodiment, by arranging a plurality of second openings 322 on the turntable 32 where the container lids 37 can be installed, and when the turntable 32 and the container rack 31 rotate to a specific position, that is, when the second openings 322 are relatively arranged with the storage containers 33 in the vertical direction, the container lids 37 can be buckled onto the storage containers 33 under the action of the execution end of the sampling mechanism 1. This process does not require manual operation, realizing the automatic buckling of the container lids 37 and the storage containers 33, improving the automation degree of the sub-packaging process, reducing the labor input, and lowering the labor intensity of manual operation.

[0088] The plurality of second openings 322 on the turntable 32 are used to place the container covers 37. The number and distribution of the second openings 322 can be determined according to actual needs, and can correspond to the storage containers 33 below.

[0089] The container cover 37 is a component matched with the storage container 33 and is used to seal the storage container 33. In an actual application scenario, the container cover 37 is detachably disposed in the second opening 322 so that the container cover 37 can be placed in the second opening 322.

[0090] Specifically, a circle of continuous or segmented elastic sheets can be provided at the inner edge of the second opening 322, and the elastic sheets are used to cooperate with the container cover 37. When the container cover 37 is placed in the second opening 322, the elastic sheet will be squeezed by the outer edge of the container cover 37 and deformed, and the elastic force generated by the elastic sheet will make the container cover 37 fit tightly in the second opening 322 to achieve fixation. Due to the elastic force of the elastic sheet, the container cover 37 will not fall off easily during normal use, but when it needs to be removed, a certain external force can be applied to overcome the elastic force of the elastic sheet and the container cover 37 can be pressed down from the second opening 322.

[0091] It should be noted that in actual application scenarios, when the storage container 33 and the second opening 322 are arranged relative to each other in the vertical direction, the execution end of the sampling mechanism 1, that is, the sampling shovel 12, can apply pressure to the container cover 37 in the second opening 322 in a downward direction to press the container cover 37 down to the storage container 33 below, thereby completing the automatic covering operation of the storage container 33.

[0092] In the above embodiment, when the rotating disk 32 rotates until the first opening 321 and the collecting hopper 24 are arranged opposite to each other in the vertical direction, any one of the plurality of second openings 322 and the collecting hopper 24 are staggered in the vertical direction.

[0093] In this embodiment, when the turntable 32 rotates to the unloading position, only one collecting hopper 24 is vertically aligned with the first opening 321, while all other collecting hoppers 24 are vertically staggered with the plurality of second openings 322. Thus, the risk of the lunar soil samples in other collecting hoppers 24 accidentally falling through the second openings 322 due to the absence of the container cover 37 in the second openings 322 is reduced, the orderliness and accuracy of the lunar soil sample collection and processing process are effectively guaranteed, the occurrence of lunar soil sample spillage and loss is minimized, and a stable and reliable prerequisite is provided for the subsequent scientific research of lunar soil samples.

[0094] It should be noted that, in order to ensure that when the turntable 32 rotates to the point where the first opening 321 is vertically opposite to the collecting hopper 24, all the second openings 322 will not be vertically opposite to the collecting hopper 24, on the circular path of the turntable 32, the center angle corresponding to the arc length between the first opening 321 and each second opening 322 should be larger than the center angle corresponding to the maximum arc length between two adjacent collecting hoppers 24 when multiple collecting hoppers 24 are distributed in a circle.

[0095] In the above embodiments, see Figure 8 and Figure 9 As shown, an elastic member 331 is provided at the top opening of the storage container 33. When the container cover 37 is buckled onto the storage container 33 under the action of the execution end of the sampling mechanism 1, the execution end of the sampling mechanism 1 deforms the elastic member 331 through the container cover 37 to accumulate elastic potential energy. When the container cover 37 is buckled into place and the downward pressing action stops, the elastic member 331 releases the elastic potential energy to limit the container cover 37 in the vertical upward direction.

[0096] In this embodiment, the elastic member 331 releases elastic potential energy to limit the container cover 37 vertically upwards, without the need for additional mechanical structure or manual operation to limit, thereby achieving automatic limiting, so that the container cover 37 can automatically remain in the correct position after being snapped into place, thereby improving the automation and reliability of the entire device and simplifying the operating process.

[0097] The elastic member 331 is a member that can be deformed when subjected to force and can return to its original shape after the external force is removed, such as an elastic sheet, elastic rubber, etc.

[0098] Specifically, during the fastening process of the container cover 37, the execution end of the sampling mechanism 1, that is, the sampling shovel 12, exerts force, and this force is transmitted to the elastic member 331 at the top opening of the storage container 33 via the container cover 37. Because the elastic member 331 has a deformable characteristic, it will be compressed and deformed after being subjected to force, making room for the fastening of the container cover 37, so that the container cover 37 can smoothly enter the storage container 33, and then close the storage container 33. When the container cover 37 is fully fastened in place, the sampling shovel 12 stops applying downward pressure, and the elastic member 331, which previously stored elastic potential energy due to deformation, begins to restore to its initial state. The elastic member 331 restored to its initial state is located above the container cover 37, which can limit the position of the container cover 37 and effectively prevent the container cover 37 from falling out of the storage container 33 during subsequent use. Furthermore, in some specific examples, the elastic member 331 is an annular structure, and the elastic member 331 surrounds the top opening of the storage container 33; in other specific embodiments, the elastic member 331 is a segmented structure arranged on the inner edge of the opening of the storage container 33, and each segment is distributed on the inner edge to jointly play an elastic role.

[0099] Among them, in order to quickly obtain the lunar soil sample in the storage container 33, the storage container 33 can be designed as a split structure. The storage container 33 includes an upper cover part and a storage part that are interconnected, and an elastic sheet is arranged at one end of the upper cover part away from the storage part.

[0100] Specifically, the upper cover part and the storage part are detachably connected, such as by screw connection. When it is necessary to open the storage container 33 to obtain the lunar soil sample, the operator can rotate the upper cover part to disconnect the upper cover part from the storage part.

[0101] In some possible embodiments disclosed in the present application, as shown in Figure 4 Figure, the container rack 31 includes: a plurality of movable jaws 38, and the plurality of movable jaws 38 are arranged in one-to-one correspondence with the plurality of storage containers 33.

[0102] In this embodiment, each movable jaw 38 corresponds to a storage container 33, enabling the operator to conveniently operate a single or multiple storage containers 33. For example, a certain storage container 33 can be taken out or put in separately without affecting the positions of other containers, improving the flexibility and convenience of the operation.

[0103] Among them, the movable jaw 38 includes a fixed clamp body and a movable clamp body, and the fixed clamp body is hinged to the movable clamp body to form a clamping mouth.

[0104] Specifically, the opening and closing action of the clamping mouth can be realized by electromagnetic adsorption. Further, an electromagnet is arranged on the fixed clamp body, a permanent magnet is arranged at the corresponding position of the movable clamp body relative to the electromagnet, and a torsion spring is arranged on the hinge shaft of the fixed clamp body and the movable clamp body. The two ends of the torsion spring are respectively connected to the fixed clamp body and the movable clamp body, and the torsion spring keeps the clamping mouth in an open state in the natural state. When it is necessary to close the clamping mouth, an electric current is applied to the electromagnet, and the electromagnet generates a magnetic force that attracts the permanent magnet. This magnetic force overcomes the torsion force of the torsion spring, causing the movable clamp body to rotate around the hinge shaft, thereby driving the clamping mouth to close. When the power supply of the electromagnet is cut off, the magnetic field disappears, the torsion spring restores its deformation, and the generated torsion force causes the movable clamp body to return to the initial position, and the clamping mouth opens again.

[0105] Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0106] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present application, several improvements and variations can still be made, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An in-situ lunar soil sampling device, characterized in that: include: A sampling mechanism (1) and a screening mechanism (2); The sampling mechanism (1) is arranged on one side of the screening mechanism (2), and the sampling mechanism (1) is used to collect and transfer lunar soil samples to the screening mechanism (2); The screening mechanism (2) comprises a screening bin (21), a screening filter cartridge (22) and a conveying rod (23); a feed inlet is provided at the top of the screening bin (21); the screening filter cartridge (22) is arranged in the screening bin (21) and is in communication with the feed inlet; the conveying rod (23) is rotatably arranged in the screening filter cartridge (22); a continuous spiral blade is provided on the outer peripheral surface of the conveying rod (23); the spiral blade is used to push the lunar soil sample to move axially in the screening filter cartridge (22) when the conveying rod (23) rotates; the screening filter cartridge (22) comprises a plurality of A particle size classification unit (221), in the conveying direction of the lunar soil sample, the sieve hole sizes of the plurality of particle size classification units (221) are increased in sequence; a plurality of collecting hoppers (24) are provided at the bottom of the screening bin (21), the plurality of collecting hoppers (24) are arranged in one-to-one correspondence with the plurality of particle size classification units (221), and the collecting hoppers (24) are used to collect the lunar soil samples screened by the corresponding particle size classification units (221); overflow ports (241) are provided on the side walls of the plurality of collecting hoppers (24), and the heights of the overflow ports (241) are different from each other.

2. The in-situ lunar soil sampling device according to claim 1, characterized in that: The sampling mechanism (1) comprises: A sampling arm (11), wherein a sampling shovel (12) is provided at an execution end of the sampling arm (11), and the sampling arm (11) has at least three degrees of freedom.

3. The in-situ lunar soil sampling device according to claim 1, characterized in that: A plurality of partitions are provided between the inner wall of the screening bin (21) and the outer wall of the screening filter cartridge (22), and the plurality of partitions are distributed along the axial direction of the screening filter cartridge (22). The plurality of partitions are used to isolate the lunar soil samples after screening by different particle size classification units (221).

4. The in-situ lunar soil sampling device according to claim 1, characterized in that: Also includes: A packing mechanism (3), the packing mechanism (3) is arranged below the screening mechanism (2), and the packing mechanism (3) is used to pack the lunar soil samples of different particle sizes that fall from the collecting hopper (24) and are screened into different storage containers (33).

5. The in-situ lunar soil sampling device according to claim 4, characterized in that: The packaging mechanism (3) comprises: A container rack (31) and a turntable (32); The container rack (31) is rotatably arranged below the collecting hopper (24); a plurality of storage containers (33) are evenly and detachably distributed in the circumferential direction of the container rack (31); when the container rack (31) drives the storage container (33) to rotate, a portion of the rotation path of the storage container (33) is arranged opposite to the collecting hopper (24) in the vertical direction; The turntable (32) is rotatably arranged between the collecting hopper (24) and the container frame (31), and a first opening (321) is opened on the turntable (32). When the turntable (32) is rotated to the point where the first opening (321) and the collecting hopper (24) are arranged opposite to each other in the vertical direction, the lunar soil sample in the collecting hopper (24) can pass through the turntable (32) through the first opening (321) to fall into the corresponding storage container (33). When the turntable (32) is rotated to the point where the first opening (321) and the collecting hopper (24) are arranged staggered in the vertical direction, the solid part of the turntable (32) closes the discharge port of the collecting hopper (24).

6. The in-situ lunar soil sampling device according to claim 5, characterized in that: The packaging mechanism (3) further comprises: A first drive assembly (34), a second drive assembly (35) and a bearing seat (36); The first driving assembly (34) is connected to the container frame (31), and the first driving assembly (34) is used to drive the container frame (31) to rotate; the second driving assembly (35) is connected to the rotating disk (32), and the second driving assembly (35) is used to drive the rotating disk (32) to rotate; The bearing seat (36) is arranged between the first drive assembly (34) and the second drive assembly (35); one end of the bearing seat (36) is rotationally connected to the output shaft of the first drive assembly (34), and the other end is rotationally connected to the output shaft of the second drive assembly (35).

7. The in-situ lunar soil sampling device according to claim 5, characterized in that: The rotating disk (32) is also provided with a plurality of second openings (322), and container covers (37) are detachably provided in each of the plurality of second openings (322). When the rotating disk (32) and the container rack (31) are rotated so that the storage container (33) and the second openings (322) are arranged opposite to each other in the vertical direction, the container cover (37) can be buckled onto the storage container (33) under the action of the execution end of the sampling mechanism (1).

8. The in-situ lunar soil sampling device according to claim 7, characterized in that: When the rotating disk (32) rotates until the first opening (321) and the collecting hopper (24) are arranged relative to each other in the vertical direction, any one of the plurality of second openings (322) and the collecting hopper (24) are staggered in the vertical direction.

9. The in-situ lunar soil sampling device according to claim 7, characterized in that: An elastic member (331) is provided at the open top of the storage container (33). When the container cover (37) is buckled onto the storage container (33) under the action of the execution end of the sampling mechanism (1), the execution end of the sampling mechanism (1) deforms the elastic member (331) through the container cover (37) to accumulate elastic potential energy. When the container cover (37) is buckled into place and stops pressing down, the elastic member (331) releases the elastic potential energy to limit the container cover (37) in a vertically upward direction.

10. The in-situ lunar soil sampling device according to claim 7, characterized in that: The container frame (31) comprises: A plurality of movable clamping jaws (38) are provided in a one-to-one correspondence with the plurality of storage containers (33).

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